124results about How to "Stable water flow" patented technology

A water and power saving type of a reverse osmosis water purifier consists of a pretreatment filter core, a high pressure pump, a reverse osmosis filter core, a waste water ratio, ectromagnetic valve, an atmosphere intermediate water tank, and an atmosphere pure water tank. After the water is processed by the pretreatment filter core, the water enters into the atmosphere intermediate water tank; the high pressure pump absorbs the water from the atmosphere intermediate water tank; the outlet water from the reverse osmosis filter core enters into the atmosphere pure water tanks; after the pressure of the discharging sewage from the reverse osmosis filter core is decreased by the waste water ratio, the waste water returns to the atmosphere intermediate water tank. Compared with the prior art, the water and power saving type of a reverse osmosis water purifier has the advantanges that the invention puts the waterless idle roll and frequent starting and stopping phenomena of the high pressure pump to an end; the high pressure pump has a long using life, a power saving capability and a high utilization efficiency of the raw water; the invention can provide a dual water supply function and realize the wastewater zero discharge with a stable operating system and a low manufacturing cost.

The invention discloses a water complementing system for a fish-way entrance, which has good fish attracting effects. The water complementing system comprises a water complementing pool, wherein a water completing header tube is connected on the water complementing pool; at least one water complementing sub tube is connected on the water complementing header tube; a plurality of water complementing branch tubes are connected on the water complementing sub tube. The water complementing system adopts a sectional water complementing manner to simultaneously complement water for a plurality of positions of the fish-way entrance, so that water flow speed of the whole fish-way entrance is simultaneously changed without destroying the flow regime at the fish-way entrance, the flow regime at the fish-way entrance is kept to be stable to effectively attract fishes to enter the fish-way, thereby achieving good fish attracting effects; moreover, a plurality of water complementing branch tubes are adopted to complement water, and flow speed at the exit of each water complementing branch tube is not too large, so that large interferences cannot be caused to the flow speed of the fish-way, the tracing of fishes is not affected and is not blocked. The water complementing system is suitable for popularization and application in the fish-way field.

The invention relates to a dual-purpose furnace working system which comprises a combustion heat-exchanging device, a fuel gas pipeline, a heating pipeline, a domestic water pipeline, a heat exchangerand an expansion water tank. The expansion water tank is provided with a first cavity, a second cavity and a third cavity. The first cavity communicates with the heating pipeline, the second cavity communicates with the domestic water pipeline, and the third cavity communicates with a balance air source. The dual-purpose furnace system can provide hot water sources for domestic water and heatingwater simultaneously, in the heating process, the domestic water is supplied as a priority, and energy is effectively utilized; two cavities of the expansion water tank are simultaneously connected toa heating waterway and a domestic waterway of a dual-purpose furnace in series, the expansion and shrinking quantity of circulating water in a heating loop and the expansion and shrinking quantity ofwater in the domestic waterway can be contained and supplemented, and pressure fluctuation of the heating loop and the domestic water can further be relieved; and stability of the water flow rate iskept, and the use comfort of the bathroom domestic water is improved while the heating function is ensured.

The invention discloses an anti-blocking method of a geothermal energy power generation device. The device comprises a pipeline body, the pipeline body is connected to a pipeline where geothermal water flows, the water flow flows into the pipeline body from one side and flows out of the other side of the pipeline body, and then suspension particles, microorganisms and clay substances are filteredaway in the pipeline body; the filtered dirt falls into a slag outlet of an openable design at the bottom of the pipeline body. The bottom of the slag outlet is opened manually in the outside to thoroughly remove the dirt from the pipeline, and pipeline blockage of the geothermal energy power generation device is realized; in the actual operation process, impurities in the pipeline can be effectively cleaned away, the blockage of the pipeline is avoided, the maintenance cost is reduced, and the working efficiency is improved.

The invention discloses a pressure compensating drip irrigation emitter with a changed structure. The structure of the pressure compensating drip irrigation emitter is that a water inlet is communicated with one end of a flow path, a water outlet is communicated with the other end of the flow path, linear sawtooth ends are evenly distributed on two sides in the flow path, and elastic blocking pieces are distributed at the sawtooth ends at equidistant intervals. The width of elastic blocking pieces is slightly smaller than the thickness of sawteeth so that friction between the elastic blocking pieces and the flow path is avoided. The deflection direction of the elastic blocking pieces is the direction of water flow. A back fence is arranged at the back of the irrigation emitter and is communicated with the water inlet. By adding the elastic blocking pieces on tooth-shaped structure ends of a traditional labyrinth flow path, the irrigation emitter achieves the purpose of integral design of compensating pieces and the flow path so that assembly errors between the compensating pieces and the flow path are reduced, and local head loss caused by the assembly is reduced. The novel flow path can achieve pressure compensation, can be used in production of embedded-in drip irrigation belts, and can solve the problem that the drip irrigation belts are not suitable for achieving the pressure compensation. Besides, the pressure compensating drip irrigation emitter further has capacities of self cleaning and blocking resistance.

The invention relates to a manufacturing method for a super-large-sized aluminium alloy flat ingot casting, and aims to solve the problem that the conventional small-sized ingot casting cannot meet the use requirement. The method comprises the following steps: I, smelting; and II, forming: adopting the semi-continuous casting process to manufacture a casting molten mass into the super-large-sized aluminium alloy flat ingot casting with the thickness of 600mm-660mm and the thickness of 2000mm-2200mm. The manufacturing method disclosed by the invention is applied to the manufacture field of the super-large-sized aluminium alloy flat ingot casting.

The invention discloses a water pipe flow stabilizing broadband muffler which comprises a water delivery pipe and a muffler casing. An expanded perforated pipe is fixedly installed on the inner side of one end of a muffler casing body fixedly connected with the water delivery pipe. An end plate is fixedly arranged at the other end of the muffler casing. A shunting perforated pipe is further fixedly connected onto the end plate, and a throttle ring is fixedly arranged at the port position of the inner end of the shunting perforated pipe. The inner diameter of the expanded perforated pipe is larger than the outer diameter of the shunting perforated pipe, the inner end of the expanded perforated pipe and the inner end of the shunting perforated pipe are in fixedly sleeved connection in a gapped mode, and the flowing cross area of the water delivery pipe is smaller than the sum of the hole flowing cross area of the end plate and the flowing cross area of the shunting perforated pipe. The water pipe flow stabilizing broadband muffler can achieve broadband muffling of the water pipe, effectively stabilize a flow field at the outlet end of the water pipe, reduce the water spraying-flowing speed and pressure, accordingly reduce water pipe port noise effectively and achieve the effects of flow stabilizing and broadband muffling.

The invention provides a flow-line variable-cross-section back-flushing energy dissipation fishway with a fish luring function. The flow-line variable-cross-section back-flushing energy dissipation fishway comprises bottom plates, back-flushing water outlets, a base, flow-line-type combination side walls, back-flushing waterways, a lower chamber, an underwater water outlet; the flow-line-type combination side walls are uniformly arranged along the whole fishway; the back-flushing waterways are formed in the bottom plates and are located at downstream parts which are 60 cm away from narrowest parts of the fishways defined by the left and right flow-line-type combination side walls; the lower chamber is arranged below the bottom plates; the underwater water outlet is formed in a bottom partof a tail end of the lower chamber; and each back-flushing waterway is of a curve-surface structure of which the lower part is large and the upper part is small. The flow-line variable-cross-section back-flushing energy dissipation fishway has the beneficial effects that flowing speed and flow of bottom-layer water flows of the water outlets of the fishway are increased through bottom-layer high-pressure water flows, and a fish luring effect of the water outlets in the fishway is improved; back-flushing water flows and flow-line-type fishway side walls are designed, so that water flow energy in the fishway is dissipated; the flowing state and flowing speed of water flows in the fishway are improved; and a fish passing rate of the fishway is improved.

The invention provides a flow-line variable-cross-section back-flushing energy dissipation fishway with a fish luring function. The flow-line variable-cross-section back-flushing energy dissipation fishway comprises bottom plates, back-flushing water outlets, a base, flow-line-type combination side walls, back-flushing waterways, a lower chamber, an underwater water outlet; the flow-line-type combination side walls are uniformly arranged along the whole fishway; the back-flushing waterways are formed in the bottom plates and are located at downstream parts which are 60 cm away from narrowest parts of the fishways defined by the left and right flow-line-type combination side walls; the lower chamber is arranged below the bottom plates; the underwater water outlet is formed in a bottom partof a tail end of the lower chamber; and each back-flushing waterway is of a curve-surface structure of which the lower part is large and the upper part is small. The flow-line variable-cross-section back-flushing energy dissipation fishway has the beneficial effects that flowing speed and flow of bottom-layer water flows of the water outlets of the fishway are increased through bottom-layer high-pressure water flows, and a fish luring effect of the water outlets in the fishway is improved; back-flushing water flows and flow-line-type fishway side walls are designed, so that water flow energy in the fishway is dissipated; the flowing state and flowing speed of water flows in the fishway are improved; and a fish passing rate of the fishway is improved.

The invention discloses a purification method for oilfield reinjection water. According to the method, at least one level of membrane filtration treatment is carried out on oilfield produced water through a cellular carrier type inorganic carbon membrane component so as to prepare the reinjection water suitable for low permeability and extra-low permeability oil reservoirs, wherein the filter precision of the membrane component for membrane filtration treatment is 0.001-100mu m. The purification method has high filtration accuracy, the membrane flux of the compound carbon membrane carrier is large, the capacity of the membrane in resisting oil contamination is strong, the integration level of the structure of the membrane core is high, the quality of the prepared reinjection water is stable, and fine filtrated oilfield reinjection water meets the requirement of the reinjection water for the oil reservoirs in low permeability and extra-low permeability block, and meets the A-grade standard of 'recommended index and analysis method for quality of oil reservoir injection water of clastic rock' (SY / T 5329-94).

The invention relates to a temperature-adjusting instant hot water dispenser which comprises a raw water cup, a booster pump, a composite filter element, a reverse osmosis membrane filter element, a water purification tank, a water supply pump, a heating pipe, an intermediate water tank and a reversing valve. A purified water temperature sensor is arranged at the position of a purified water outlet, and a water outlet of the heating pipe is provided with a hot water temperature sensor. The invention further discloses a method for controlling the water dispenser. The method comprises the step of detecting stored water in the raw water cup, the step of detecting water level in the water purification tank, the step of detecting purified water temperature and outlet water temperature, the step of judging water level of the heating pipe, the step of starting hot water and warm water releasing instructions or the step of starting normal temperature water. According to the temperature-adjusting instant hot water dispenser, through a set control flow, the stability of the outlet water temperature is maintained continuously.

The invention discloses a geothermal power generation device with an anti-blocking function. The geothermal power generation device comprises a pipeline body. Connecting sheets are fixedly connected with the left side and the right side of the pipeline body, connecting holes are formed in the tops and the bottoms of two opposite sides of the two connecting sheets, a filter plate is fixedly connected onto the inner wall of the pipeline body, filter holes are equidistantly formed in the surfaces of the filter plate, and the portions, which are positioned on the right side of the filter plate, ofthe top and the bottom of the inner wall of the pipeline body are fixedly connected with each other by a fixing rod. The geothermal power generation device has the advantages that the geothermal power generation device is provided with the filter plate, the filter holes, the fixing rod, connecting springs, a movable plate, first anti-blocking rods, through holes, slide bars, a residue outlet, a hinge, a sealing plate, a sealing ring, a first buckle and a second buckle, and accordingly pipeline blocking can be prevented by the geothermal power generation device; impurities in a pipeline can beeffectively cleared up in actual operation procedures, accordingly, pipeline blocking can be prevented, the maintenance cost can be reduced, and the work efficiency can be improved.

The invention provides a method for manufacturing a large-size heat-treatment aluminum alloy slab ingot capable of being strengthened, and relates to a method for manufacturing the aluminum alloy slab ingot. The method for manufacturing the large-size heat-treatment aluminum alloy slab ingot capable of being strengthened mainly solves the problems that as for an aluminum alloy slab ingot prepared in the prior art, the casting yield is low, and wide and thick slabs with excellent properties cannot be rolled out. The method comprises the first step of material weighing, the second step of smelting, the third step of casting melt preparation and the forth step of molding, and the large-size heat-treatment aluminum alloy slab ingot capable of being strengthened is obtained. By means of the method, according to the prepared large-size heat-treatment aluminum alloy slab ingot capable of being strengthened, the yield strength ranges from 98 N / mm<2> to 120 N / mm<2>, the tensile strength ranges from 182 N / mm<2> to 201 N / mm<2>, and the elongation percentage in a casting state ranges from 9.56% to 14.7%. By means of the method, the large-size heat-treatment aluminum alloy slab ingot capable of being strengthened can be obtained.

The invention discloses an instant heating type constant-temperature outlet water heating control method, comprising the following steps: (1) opening a water inlet valve, heating water at a certain ratio of a theoretical power, wherein the sustained heating time is t; (2) calculating the current operating voltage according to the current outlet water temperature, an initial inlet water temperature, a flow rate and the theoretical power; (3) calculating a theoretically demanded power according to the operating voltage, the flow rate and temperature difference for heating; and (4) starting to adopt a PID (Proportional Integral Differential) algorithm for regulation if a difference value of the current outlet water temperature and a set temperature is c. According to the instant heating type constant-temperature outlet water heating control method disclosed by the invention, the water is preheated at the time before water spray, a target temperature can be reached quickly when the water spray starts, there is no voltage detection component, and a fuzzy algorithm is adopted to estimate the current voltage value, so that production cost, inspection cost and the like are lowered.

The invention belongs to the technical field of sewage treatment, in particular to a recycling and treatment technique of chemical industry waste water and a device. The technical proposal is as follows: the recycling and treatment technique of chemical industry waste water comprises the following steps of: using lime water to adjust the pH value of the chemical industry waste water; primary settlement; hydrolysis and acidification; adjusting the pH value to 7 to 7.5; carrying out aerobic biochemical treatment in an active sludge tank; secondary settlement; air floatation; and storage. The invention also provides a device for recycling and treatment of the chemical industry waste water, comprising a grating, an adjusting tank, a primary settling tank, a hydrolysis and acidification tank, an active sludge tank, a secondary settling tank, an air floating machine and a cleaning and storage tank, wherein, the adjusting tank, the primary settling tank, the hydrolysis and acidification tank, the active sludge tank, the secondary settling tank, the air floating machine and the cleaning and storage tank are connected in sequence. The technique has simple process, few structure, compact arrangement, little occupy area and saving investment; the water which is treated by the process of the technique reaches to the national primary standard of composite discharge of the sewage, and can completely recycle and utilize without secondary pollution, thus realizing cleaner production and civilizer production.

The invention provides a water pump. The water pump comprises a buoyancy block, a filtering chamber, a flowing chamber and a pressurizing chamber, a left guide column and a right guide column are arranged on the left side and the right side of the bottom surface of the buoyancy block respectively, the bottom end of a left movable block and the bottom end of a right movable block are connected withthe top ends of a left inclined arm and a right inclined arm respectively, the middle part of the bottom surface of the buoyancy block is provided with an action cylinder, an action disc is fixedly arranged on the bottom of an action rod, the bottom ends of the left inclined arm and the right inclined arm are connected with the top of a connecting shaft, a first filter is arranged at the top of the filtering chamber, a second filter is arranged at the bottom of the filtering chamber, a rotator is arranged at the bottom of the second filter, a turbine is arranged at the bottom of the rotator,the second filter is arranged at the top of the flowing chamber, the pressurizing chamber is arranged at the bottom of the flowing chamber, and the pressurizing chamber can pressurize water flow. According to the technical scheme disclosed by the water pump, the technical problems that in the prior art, the capacity of adjusting and automatically cleaning the filtering chamber is not achieved, andstable high-pressure water flow cannot be provided are effectively solved, and popularization and application of the water pump are facilitated.

The invention discloses a pipe type membrane element and a submerged membrane bioreactor. The submerged membrane bioreactor comprises a reaction tank and a membrane element, wherein the membrane element is positioned in the reaction tank and comprises an inner cavity and a water-permeable cylindrical supporting layer; the outer surface of the supporting layer is wrapped with an organic filter membrane layer; the upper end of the inner cavity is closed, and the lower end of the inner cavity is provided with a water outlet; and the reaction tank is also internally provided with a water collecting disk connected with the water outlet of the membrane element. The invention is difficult to break and block and can effectively reduce the cost of the membrane element and decrease the times of chemical cleaning, thereby prolonging the service life of a membrane and reducing the operation cost.

A water-saving and power-saving reverse osmosis pure water machine, which includes a pretreatment filter element, a high-pressure pump, a reverse osmosis filter element, a waste water ratio, a solenoid valve, a normal pressure intermediate water tank and a normal pressure pure water tank, and the water treated by the pretreatment filter element Enter the normal pressure intermediate water tank, the high pressure pump absorbs water from the normal pressure intermediate water tank, the effluent of the reverse osmosis filter element enters the normal pressure pure water tank, and the sewage of the reverse osmosis filter element returns to the intermediate water tank after being depressurized by the waste water ratio. Compared with the prior art, the advantages of the water-saving and power-saving reverse osmosis pure water machine of the present invention are: it can prevent high-pressure pumps from idling without water and frequent start and stop phenomena, the service life of high-pressure pumps is long, energy is saved, and raw water utilization rate is high , It can provide the function of water supply by quality, basically no waste water discharge, the system runs stably and the manufacturing cost is low.

The invention discloses a purifying method of condensed water. The purifying method comprises the steps of adopting a honeycomb-shaped carrier type inorganic carbon membrane assembly to carry out at least one stage of membrane filtering treatment on high-temperature condensed water, wherein the filtering accuracy of the membrane assembly treated by membrane filtering is 0.001-100mum, and preparing the boiler supplementing water suitable for recycling. The purifying method disclosed by the invention has the advantages that the filtering accuracy is high, the membrane flux of a honeycomb-shaped carrier type membrane core is large, the impact resistance of incoming water is strong, the resistance to oil pollution is strong, the integration level of the membrane core structure is high, the preparation method is simple, a complex online discrimination system is not needed, and the prepared condensed water is stable in quality and high in temperature, meets the requirement on water quality of the boiler supplementing water and saves a great amount of heat.

The invention discloses a microcystis aeruginosa research device which comprises a water tank, a motor and a lighting system, wherein the water tank is in the shape of an annular column with an upward opening; the motor is arranged in the center of circle of the water tank; an output shaft of the motor is provided with vertical supporting beams; the top ends of the supporting beams are provided with horizontal suspension arm beams; water pushing sheets are arranged below the suspension arm beams and extend into the water tank; and the lighting system is arranged at the periphery of the water tank. The device has the characteristic that a water body has basically consistent flow velocity during an experiment.

The invention discloses an intelligent direct drinking water supply and vending system and a water supply method. The system comprises a controller, a non-negative pressure water supply module, a direct drinking water processing module, a water quality monitoring module and a water vending machine; the non-negative pressure water supply module comprises a main water inlet pipe, a main water supply pump and a main water outlet pipe which are connected in sequence to form a main water way; the direct drinking water processing module comprises a pre-filtration component, a first water pump, a water purification membrane filter element and a purified water tank which are connected in sequence to form a filtration water way; the pre-filtration component comprises a multi-medium filter, an activated carbon filter and a water softener which are connected to the filtration water way; and the water quality monitoring module comprises a closed water tank and a first water quality sensor, the closed water tank is connected between the water purification membrane filter element and the purified water tank, the first water quality sensor is arranged in the closed water tank, the closed water tank is further connected to the water vending machine, the first water quality sensor is connected with the controller, and the water vending machine is in communication connection with the controller. The detection precision and detection range of water quality parameters are realized, thereby improving user experience.

The invention discloses a sewage efficient flocculation clarification device, which comprises an electric flocculation reaction cavity and a clarification separation cavity in matched arrangement on the periphery of the flocculation reaction cavity, wherein a water inlet pipe is arranged at the upper end of a casing of the clarification separation cavity; the water inlet pipe passes through the clarification separation cavity to be communicated with a tangent line of a side wall of the casing of the electric flocculation reaction cavity; a plurality of electric flocculation electrode plates are arranged inside the electric flocculation reaction cavity in a matched way, and are used for electrolyzing and flocculating the waste liquid so that the waste liquid realizes purification and impurity removal in the cyclone state through electric flocculation reaction; after flocculation impurities generated through the electrolyzing flocculation by the electric flocculation reaction cavity aredecomposed in the clarification reaction cavity, the discharge can be realized through a pollution discharge opening; treated waste water enters the water outlet pipe through an overflow weir arrangedon the top of the flocculation reaction cavity to enter the water outlet pipe to flow out. The sewage efficient flocculation clarification device effectively solves the problems that the water outletwater flow of the existing single cavity electric flocculation reaction cavity is instable; flocculation impurities can be easily clamped to cause the problems of reverse pollution or equipment wateroutlet pipe blockage and the like; the water outlet water quality purification degree and the water outlet water flow stability after the electric flocculation reaction impurity removal can be greatly improved.

The invention discloses a photocatalytic disinfection reactor used for disinfecting reclaimed water and rainwater, a photocatalysis material and a preparation method thereof, an application and an application method thereof. The photocatalytic disinfection reactor comprises a sterilizer case and a disinfection reaction zone. An inlet pipe and an outlet pipe are arranged on the sterilizer case, the sterilizer case comprises a quartz cannula and a stainless steel outer sleeve; the disinfection reaction zone is an annular space formed by between the quartz cannula and the stainless steel outer sleeve, the vertical separator plates are arranged in a disinfection reaction zone every 120mm, the active carbon fiber (ACF) is fixed in the vertical separator plate for loading the nano TiO2 photocatalysis material; a heat suction / radiation fan is arranged at one end of the quartz cannula, and an ultraviolet lamp is arranged in the quartz cannula. On one hand, bacteria in reclaimed water and rainwater can be effectively inactivated, on the other hand, the operation and management of the reactor are convenient, the reactor is safe and reliable, impact and load by a certain water volume can be adapted, in addition, the disinfection reactor has removal effect to an organic matter in water, and safety risk of organism due to bacteria in reclaimed water and rainwater can be avoided.

A two-way low lift water pumping device shaped like Omega in Greek letters comprises two-way water inlet and outlet flow channels, a fast gate, a two-way low-hump siphon type water outlet structure, a vacuum breaking device and a pump device, wherein the pump device is perpendicularly arranged between the water inlet and outlet flow channels, the water inlet and outlet flow channels on the two sides of the pump device are respectively provided with a direction adjusting gate hole, horizontal partition plates are arranged on the upper middle portions of the water inlet and outlet flow channels, the horizontal partition plates on the two sides of the pump device are respectively provided with a diving hole opening with a buoyancy tank direction adjusting gate, the buoyancy tank direction adjusting gates are gates commonly used by the diving hole openings and the direction adjusting gate holes, the direction of water flow is changed by controlling the buoyancy tank direction adjusting gates, two-way water pumping is achieved, and a top vent hole connector on the top of the low-hump siphon type water outlet structure is connected with a vacuum breaking valve. The two-way low lift water pumping device solves the technical problems that a two-way low lift pump station emergently needs high-efficiency water pumping devices, the water outlet level of a vertical pump device is higher than the water level of an outlet of the pump station because the axial size of the vertical pump device is large, and lift is wasted. The two-way low lift water pumping device is compact and reasonable in engineering structure and convenient to manage and control, investment is saved, and forward and backward pumping efficiency is improved substantially.

The invention discloses an integrated composite double-membrane filter element. The integrated composite double-membrane filter element mainly comprises a carbon fibre membrane cover body and an ultra-filtration membrane shell in which a polyethylene (PE) ultra-filtration object is arranged, wherein the ultra-filtration membrane shell is sleeved in the carbon fibre membrane cover body; a non-woven fabric layer is coated on a peripheral wall of the carbon fibre membrane cover body; filtration through holes are formed on upper and lower end faces of the ultra-filtration membrane shell respectively; and the top end of the carbon fibre membrane cover body is a closed end. In the invention, a single external pressure ultra-filtration membrane in the prior art is eliminated; non-woven fabrics adopted by the filter element can filter visible large-particle impurities such as sediment and rust so as to well protect a carbon fibre membrane; the carbon fibre membrane can filter organic matters from water such as chloride ions and benzene; and a PE ultra-filtration membrane has better effects of removing harmful substances such as bacterial viruses of colloids of suspended matters and heavy metal and remaining mineral substances which are beneficial to a human body. An experiment result shows that: the water penetration capacity of the filter element can be equal to 4 tons of water; filtration accuracy is equal to 0.01 microns; and the water penetration capacity is quite stable.

The invention discloses a gas water heater capable of achieving multi-stage flow limiting and temperature control. The gas water heater comprises a burner, a heat exchanger, a water inlet pipe, a water outlet pipe, a discharged water temperature detecting device, a water flow detecting device, a gas proportional valve, a first water adjusting device and a controller; the first water adjusting device comprises a first valve body, a first flow stabilizer and a control valve; the first valve body is provided with a first main water way and a first bypass water way; the two ends of the first mainwater way communicate with externally supplied water and a water inlet end of the water flow detecting device correspondingly, and the first main water way is provided with the first flow stabilizer;the water inlet end and the water outlet end of the first bypass water way communicate with the water inlet end and the water outlet end of the first flow stabilizer correspondingly; and the control valve is arranged on the first valve body and used for controlling opening and closing of the first bypass water way. Through the gas water heater of the invention, the quick temperature rising effectcan be achieved, the waiting time is shortened, the wasting quantity of cold water is decreased, and meanwhile, the influence of water supply pressure on the temperature rising stage can be reduced.

A water flow rate self-tuning device for a pressurized gas-water mixer, utilized in a multifunctional oxygenated water machine, is disclosed. The water flow rate self-tuning device of the present invention can automatically regulate the size of its water output holes in response to the different water pressure of the incoming clean water, and therefore, maintain a stable water flow rate to insure that the pressurized gas-water mixer receives a steady water supply, and that the multifunctional oxygenated water machine provides consumers the potable ozonated water.

The invention discloses a micro water pump capable of accurately controlling flow. The micro water pump comprises an upper cover, a valve seat, a water bag seat, a base casing, water bags, a bent lever, a drive shaft, an eccentric wheel, a motor, an optoelectronic switch and an output circuit board, wherein a water outlet and a water inlet are formed in the upper cover; water inlet holes and water outlet holes are formed in the valve seat; the water bags for sucking water into the water inlet holes or pushing water out of the water outlet holes are mounted on the water bag seat; the water bags are driven by the bent lever, the drive shaft and the eccentric wheel to work; the motor and the optoelectronic switch are mounted on the base casing; photoelectric shading pieces are mounted on the eccentric wheel or a motor shaft; the optoelectronic switch is electrically connected with the output circuit board; the output circuit board is used for being electrically connected with an external motor controller. Based on output revolution information, a user can accurately control the revolution of the motor through combination of the revolution information and the external motor controller, so that different quantities of stable water flow under different back pressure is obtained, and the micro water pump has the characteristics that the flow control is accurate, the work is stable and smooth and the service life is long.

The invention discloses a pump station structure and a pump station water in-out method. The pump station structure comprises a pump room body and water pump units, the pump room body is sequentially provided with a water inlet bottom layer, a water collecting middle layer and an electromechanical control top layer from bottom to top, a water inlet and a water distribution opening are formed in the water inlet bottom layer, and the water distribution opening is formed in a base plate of the water collecting middle layer in a through mode; water inlet pipes of the water pump units are arranged in the water collecting middle layer, water outlet pressure wells are arranged on the outer side of the periphery of the water collecting middle layer, and water flow is lifted by the water pump units to be guided into the water outlet pressure wells to be output outwards after entering the water collecting middle layer from the water inlet bottom layer. The pump room body of the pump station structure is divided into three layers, bottom center water distribution is achieved through the water inlet bottom layer and the water distribution opening, the upper portion peripheral water outlet is achieved in the mode that the water collecting middle layer is matched with the multiple water pump units and the water outlet pressure wells, and the problems of being large in floor space, limited in land utilization, small in pup station water inlet and water outlet pipe angle and the like are solved.

The invention discloses a water jet nozzle for a solar water heating system. The water jet nozzle comprises an outer sleeve, an inner sleeve and a base, wherein the bottom of the annular outer sleeve is connected with the edge on the upper surface of the base in a sealed mode, one side of the annular outer sleeve is provided with a cold water inlet, and the inner sleeve is embedded into the annular outer sleeve; the periphery and the axis of the inner sleeve are respectively provided with an annular groove and a hot water cavity, the upper end of the hot water cavity is provided with a hot water inlet, and the annular groove and the inner circumferential surface of the outer sleeve form an annular cold water passage; and the inner sleeve and the base are provided with a plurality of jet devices communicated up and down, a hot water clearance is formed between the bottom end of the inner sleeve and the base, and the middle parts of the jet devices are provided with jet device hot waterinlets communicated with the hot water clearance. Cold water and hot water directly reach the jet nozzle without passing through a water mixing valve and are directly mixed and jetted at the outlet of the nozzle, so that water mixing difficulty due to over high pressure of the cold water and over high temperature of the hot water is not caused; and the water outlet flow and the temperature are stable and the water outlet flow rate is high under the conditions of low fall, low water pressure, high water temperature and the like.