370results about How to "Lower the water level" patented technology

High-yielding method for chemical hydrolysis of lignocellulose into monosaccharides. The process of the invention can additionally be applied to cellulose, xylan and related biomass polysaccharides, such as galactan, mannan, or arabinan. The method is employed for hydrolysis of a biomass polysaccharide substrate. The process is carried out in an ionic liquid in which cellulose is soluble in the presence of catalytic acid at a temperature sufficiently high to initiate hydrolysis. Water is added to the reaction mixture after initiation of hydrolysis at a rate controlled to avoid precipitation yet avoid undesired sugar dehydration products such ad HMF. Hydrolysis product is useful as feedstock for fermentations including fermentation processes for ethanol, butanol and other fuels.

A fibre-reinforcing fabric or preform, including reinforcing fibres and semicrystalline thermoplastic polymer binder, for subsequent infusion with uncured thermosetting polymer, or a class of thermosetting polymers, and curing to make a high-performance thermoset polymer composite structure, where said semi-crystalline thermoplastic polymer and said thermosetting polymer or components of said thermosetting polymer have a high level of solution compatibility at the curing temperature of the thermosetting polymer and are able to partially interpenetrate before curing of the thermosetting polymer.

A method is provided for hydrolyzing polysaccharides in a lignocellulosic feedstock to produce monosaccharides or pretreating a lignocellulosic feedstock, in which an aqueous slurry of the lignocellulosic feedstock is fed into a pressurized dewatering zone wherein the feedstock is partially dewatered and then is compressed into a plug. The plug is introduced into a reaction zone that operates at a pressure (Pr) equal to greater than about 90 psia and under suitable temperature and pH conditions to hydrolyze the polysaccharides or pretreat the feedstock. The plug provides a pressure seal between the outlet of the dewatering zone and the reaction zone. The pressure (Pdwi) of the aqueous slurry of the lignocellulosic feedstock at the inlet of the dewatering device is related to Pr as follows:0≦ΔP<the lesser of [(Pr−20 psia) and 220 psia], andwhere ΔP is the absolute difference in pressure between Pr and Pdwi in psia.

A method of coating a component on a surface thereof includes applying an organic polyoxazole-containing polymer solution to the surface and, in a further step, drying the applied polymer solution to form a coating on the surface. A coating on a component, more particularly a corrosion-resistant coating, comprises a solution of an organic polyoxazole-containing polymer. The solution is applied to a surface of the component in order to coat the surface. The surface being coated may be metal.

The invention discloses an integrated air conditioner and a condensed water processing method for the integrated air conditioner. The integrated air conditioner comprises an indoor water receiving plate, a drainage device connected with the indoor water receiving plate and used for leading the condensed water in the indoor water receiving plate to the outer side walls of multiple rows of condensers of the integrated air conditioner, the multiple rows of condensers used for heating condensed water on the outer side walls to at least vaporize part of the condensed water, a water tank arranged on a chassis of the integrated air conditioner and used for receiving non-vaporized condensed water on the outer side wall, and a water beating motor which comprises a plurality of water beating wheels and is used for beating the non-vaporized condensed water to the outer side walls of the condensers through the water beating wheels so as to enable the multiple rows of condensers to vaporize the non-vaporized condensed water again. By means of the technical scheme, the condensed water in the integrated air conditioner can be discharged automatically, and a user is protected from manually discharging the condensed water.

An automatic pool level controller that maintains a water level water in a swimming pool to protect the pool both from a low water level and from overflow conditions that disable pool equipment from operating. The controller monitors water level with a plurality of adjustable conducting sensors that connect to a plurality of relays that control a plurality of switches and a solenoid valve to automatically add water to the pool when the water level falls below the desired level, and halt addition of water when the desired level is achieved, automatically turning on a pump to expel water to reduce the water level, and automatically turning a pump off to halt the discharge of water when the water is reduced to the desired level, maintaining the water level sufficient for operating pool equipment. The controller has an immersible sensor board, a submersible pump and runs on household current.

The invention relates to the technical field of water draining, in particular to a buoyancy-tank type upstream control weir gate. The buoyancy-tank type upstream control weir gate comprises a rotating shaft, a buoyancy tank and a weir gate plate, wherein the rotating shaft, the buoyancy tank and the weir gate plate are arranged in a water channel. The buoyancy tank is arranged at one end of the rotating shaft through buoyancy-tank supporting arms, the weir gate plate is fixed to the rotating shaft through weir gate plate supporting arms, and the buoyancy tank and the weir gate plate are located on the same side of the rotating shaft. According to the buoyancy-tank type upstream control weir gate, the mode that the rotating shaft rotates to control the weir gate to be opened is adopted, the buoyancy tank is pushed by buoyancy force to rotate, a weir gate body on the same side is accordingly driven to be opened, additional energy input is not needed, a water level inductor is also not needed, the buoyancy-tank type upstream control weir gate is simple in structure and low in cost, and energy is saved.

A cleaning and filtering apparatus and method for a tank such as an aquarium. The major components are an inlet water controller, a suction unit, and a filter container unit. The filter container is selectively connected to the suction unit and a waste outlet to clean the tank and discharge waste water from the tank. The inlet water controller comprises a float connected to a valve to automatically replace the discharged water when the water level in the tank drops.

The invention discloses a closed-type constant-temperature multi-layer water circulation turtle cultivation system which comprises a multilayer turtle cultivation pool devices, a cultivation water environment adjusting device, an indoor air environment adjusting device and a cultivation system operation control device, wherein the multilayer turtle cultivation pool device comprises a plurality of turtle cultivation pools, circulating water return pipes, circulating water outlet branch pipes and main circulating water outlet pipes, primary solid liquid precipitation devices, blow-down valves and pollution discharge blow-down pipes; the cultivation water environment adjusting device comprises a solid-liquid separator, a blow-down valve, a sterilizer, a protein separator, a biological filtering device or tank, a circulating pump and a water heating device; and the indoor air environment adjusting device comprises an air heating device, an air oxygenating device and an insulation building. According to the closed type constant-temperature multi-layer water circulation turtle cultivation system, turtle cultivation environments can be comprehensively controlled, the land, the water and the energy are saved, an optimal ecological environment suitable for turtles to rapidly grow is established, turtle cultivation is free of drugs, and healthy and safe food sanitation requirements are met.

A pumping system featuring a pump chamber configured with a central portion having a tangential outlet, and configured with a tubular coupling end portion having inwardly flexible rim portions on one side; and a mounting base, having a circular portion with an inner circumferential rim configured to receive and engage the inwardly flexible rim portions of the tubular coupling portion of the pump chamber so as to be rotationally coupled to the pumping chamber so that the pumping chamber may be rotated 360° in relation to the mounting base.

A fuel cell system is provided, which is capable of effectively suppressing progress of decay of water with a simple configuration and without energy consumption so as not to substantially cause problems to occur in water supply and water purification functions. [Solving means] A fuel cell system includes a hydrogen generator (1) configured to generate hydrogen by causing a reforming reaction to proceed using a material and water, a fuel cell (5) configured to generate power by causing an electrochemical reaction to proceed using the hydrogen generated in the hydrogen generator and an oxidizing agent, a cooling water circulation portion (7) configured to circulate water for cooling the fuel cell, a water condenser (8) configured to condense water discharged from at least one of the hydrogen generator and the fuel cell, a first water storage portion (9) configured to store the water condensed by the water condenser, a water supply portion (3) configured to take out the water from the first water storage portion and to supply the water to at least one of the hydrogen generator, the fuel cell, and the cooling water circulation portion, a controller, and a water replenishment portion (10) configured to replenish water in the first water storage portion from the cooling water circulation portion, wherein the first water storage portion is provided with a discharge port; and the controller is configured to perform control so that the water in the first water storage portion is discarded through the discharge port and the water replenishment portion causes the cooling water circulation portion to replenish the water in the first water storage portion.

The invention provides a water logging and air cooling combined passive containment cooling system and method. The system is completely self-started, free of intermediate control procedure and high in reliability. The is characterized by comprising a cooling pool and an air flow guide cover, wherein the cooling pool can submerge a containment, the air flow guide cover is arranged at the outside of the containment in the cooling pool, the air flow guide cover is provided with a surrounding part surrounding the containment, and a flow guide part located above the top part of the containment and extending to the atmosphere, the surrounding part and the flow guide part are connected into an entirety, the cooling pool is provided with an air inlet, and the air inlet of the cooling pool, the surrounding part of the air flow guide cover and the flow guide part form an air flow passage with a chimney effect.

A floor mop has two mop supporting wings, which carry an absorbent mop layer and are hinge-connected to a common supporting centerpiece. A mop handle is hinge-mounted to the supporting centerpiece via a Cardan joint. A squeezing slider, which is displaceable along the mop handle and is guided non-rotatably, has two rigid squeezing arms whose ends can each be brought into engagement with a guide surface on the upper side of the respectively assigned mop supporting wings via rollers. Each mop supporting wing forms a rectangular trapezium or triangle. The edges running at right angles to the hinge edge of each mop supporting wing form a common straight continuous front edge.

Disclosed is a manufactured three-dimensional convex-concave fairing with attached vortex generators, for hydraulic structures such as bridge piers and abutments, whose shape prevents the local scour problem around such hydraulic structures. The device is a conventionally made concrete or fiber-reinforced composite, or combination of both, vortex generator equipped hydrodynamic fairing that is fit or cast over an existing or new hydraulic structure around the base of the structure and above the footing. The vortex generators are positioned so as to energize decelerating near wall flow with higher-momentum outer layer flow. The result is a more steady, compact separation and wake and substantially mitigated scour inducing vortical flow.

A water level and temperature indicating device useful for signaling preset desired water levels in a bath tub and indicating air and bathwater temperature. The device has suction cup means for removably securing the device to the tub ledge. A depending float chamber and temperature probe for projecting into the bathtub, a battery operated audible alarm system and a battery operated digital thermometer device. An interchangeable weighted float of various lengths is housed within a float chamber. The float chamber has a removable screen unit to facilitate float changes which determine desired preset water level. A modified push on switch within the float chamber will complete an electrical circuit and sound an alarm when a desired preset water level is achieved. The thermometer device will indicate air temperature until it makes contact with the water. While in contact with water the thermometer device indicates water temperature.

The invention provides a flow guide device used for measuring underwater jet flow noises by a reverberation method. The flow guide device comprises a water inlet pipe, a flow guide pipe, a flow stabilizing box, a height adjuster and a water outlet pipe, wherein one end of the water inlet pipe is inserted into a non-noise-eliminating water pool or water tank; the other end of the water inlet pipe is connected with the flow guide pipe; one end of the flow guide pipe is connected with the water inlet pipe and the other end of the flow guide pipe is connected with the flow stabilizing box; the flow stabilizing box is fixedly provided with the flow guide pipe; the flow stabilizing box is arranged on the height adjuster; the height adjuster can be used for freely adjusting the height in the vertical direction; and the water outlet pipe is located on the side face of the flow stabilizing box. According to the flow guide device used for measuring the underwater jet flow noises by the reverberation method, when the reverberation method is used for measuring radiation sound power of the underwater jet flow noises, the volume of water in the non-noise-eliminating water pool or water tank is not increased by jet flow and the jet flow radiation noises are not transmitted to the outer side, and the noises of the outer side are not transmitted into the non-noise-eliminating water pool or water tank, so that the measurement of the radiation sound power of the underwater jet flow noises is not influenced.

A beverage dispenser is proposed which includes a soft raw water container and which makes it possible to spontaneously use up drinking water in the container. A water passage tube (12) of a container connecting portion (10) includes a tubular partitioning wall (13) dividing the interior of the water passage tube (12) into a water passage (14) communicating with a water passage hole (14a), and an air passage (15) communicating with the water passage (14) through a small air passage hole (15a). A water passage pipe (16) is connected to the water passage (14). The water passage tube (12) has a base portion (12a) formed with an opening (15b) communicating with the air passage (15). An air passage pipe (17) is connected to the opening (15b) and hangs vertically downwardly into a low-temperature tank (2). An on-off valve (19b) is provided at the free end of the air passage pipe (17) which is adapted to open when the water level in the low-temperature tank (2) lowers. With this arrangement, when drinking water in the raw water container (A) runs low and the water level in the low-temperature tank (2) remains low, air in the low-temperature tank (2) is introduced into the raw water container (A) through the on-off valve (19b), which is now open, the air passage pipe (17), the air passage (15) and the small air passage hole (15a). This eliminates a negative pressure in the raw water container (A), thereby allowing water remaining in the container to be dropped into the tank.

A diversion work for river gate dams and spillways comprises an integrated platform made of two segments; wherein, the inside wall of the first segment platform is an circular conical surface; the outside wall is a circular cylindrical surface; both the top face and the bottom face are planes; the inside wall of the second segment platform is a torsion face, and the outside wall is a tangential plane against the circular cylindrical surface of the first segment platform; both the top face and the bottom face are also planes. In installation, the tail of the transition torsion face of the second segment platform is tangentially connected with side walls of an inlet side hole on a river gate dam or a spillway. The diversion work can effectively resolve the problem of transiversal shrinkage of water flow in front of inlets of the river gate dam and the spillway. To further improve water flow status, it is necessary to add a vertical guide dam; one end of the vertical guide dam is linked to the tail of the transition torsion face of the second segment platform; the other end is connected with the side wall of the river gate dam or the spillway inlet side hole. In a plurality of projects, the first segment platforms can be extended to connect with the bank, for which the surrounded lands can also be utilized for other purposes.

The invention relates to a combined subsurface-flow constructed wetland system with high efficiency and low cost for processing polluted river water. The system is formed by combing a first-stage vertical subsurface-flow wetland and a second-stage horizontal subsurface-flow wetland, wherein the vertical subsurface-flow wetland comprises a box body (1), a water inlet distribution pipe (2), vertical stand pipes (3), a water outlet collection pipe (4), a water outlet hose (5), a heightened base (6), a furnace slag packing layer (7) and a gravel packing layer (8); the horizontal subsurface-flow wetland comprises a box body (9), a water inlet distribution pipe (10), a porous barrier (11) of a water inlet distribution area, a porous barrier (12) of a water outlet area, a water outlet collection pipe (13), a water outlet hose (14), fixed water level outlets (15), a furnace slag packing layer (16) and a gravel packing layer (17). By adopting the combined subsurface-flow constructed wetland system, total nitrogen and phosphorus in the river water can be effectively removed, the height of the water outlet hose of the vertical subsurface-flow wetland can be adjusted to change the water level of the wetland and the dissolved oxygen content, and the nitrification effect or the denitrification effect can be strengthened; and the cost of furnace slag packing is low.

An apparatus and method for switching a power transmission mode of a washing machine id disclosed, to prevent malfunction and damages of the washing machine by switching the power transmission mode stably in which the method includes: (a) rotating the cam (600) by driving the clutch motor (60); (b) counting the number of pulses of power supplied to the clutch motor (60); and (c) maintaining the rotation of the cam (600) until the ounted number of pulses is equal to, or greater than a preset number of pulses.

The invention relates to a method for extraction of deep-seated intercrystalline bittern of a salt lake mining area. The method comprises the following steps of 1, excavating a gas-injection well, brine mining wells and a brine transportation channel on a salt lake ore bed, arranging an air compressor on the salt lake ore bed, arranging a brine tail liquid injection pipe in the gas-injection well around which the brine mining wells each provided with a brine transportation pipe in the interior are uniformly arranged; and arranging a brine mining pump in each one of the brine mining wells, wherein the brine mining pump is connected to one end of the brine transportation pipe of which the other end is connected to the brine transportation channel, 2, continuously pumping compressed air into the salt lake ore bed by the air compressor so that deep-seated intercrystalline bittern gushes out, 3, pumping out the deep-seated intercrystalline bittern from underground by the brine mining pumps and outputting the deep-seated intercrystalline bittern to the brine transportation channel, 4, injecting a brine tail liquid subjected to potassium extraction into the salt lake ore bed in the gas-injection well so that the brine tail liquid reaches a salt bed and forms novel potassium-containing brine, and 5, repeating the steps of 2-4 so that a cycle is finished. The method utilizes compressed air to realize extrusion of intercrystalline bittern and deep-seated bittern so that resources are fully utilized.

The invention relates to the technical field of construction, in particular to a surface precipitation deep well washing device. The surface precipitation deep well washing device comprises a well washing pipe, a high-pressure air hose and a blowing member. The blowing member is used for blowing high-pressure air to the high-pressure air hose, the high-pressure air in the high-pressure air hose moves upwards through a gap between the inner wall of the well washing pipe and the high-pressure air hose after passing through the bottom, meanwhile, well bottom sediment and water outside the well washing pipe are pushed to the head of the well to a certain height, then, the blowing member is turned off to stop blowing through an air supply pipe, and the blown sediment and water are quickly pushed upwards through the gap between the well washing pipe and the high-pressure air hose due to the siphon phenomenon and ejected out through a sediment discharge opening, so that the purpose of well bottom sediment removal is achieved. The surface precipitation deep well washing device is easy to assemble in site and operate and capable of well removing bottom sediment of a deep well to ensure the effective reduction of the water level of a tunnel.

The invention relates to a greening method for high water level impermeable saline and alkaline lands and a greening system adopting the method. The greening method adopts a landfill type drainage ditch to discharge water and salt, longitudinal blind pipes are buried at the bottom of the landfill type drainage ditch, and a water seepage sand layer is paved above the blind pipes. Water is collected through the water seepage sand layer, guided into the blind pipes through water seepage holes arranged on the upper portions of the blind pipes, and discharged into drainage pipes and / or water collecting wells through water outlets of the blind pipes. One side or two sides of the bottom of the landfill type drainage ditch are provided with one or a plurality of landfill type water seepage slope faces, the landfill type water seepage slope faces are provided with a water seepage sand layer, the water seepage sand layer is connected with the water seepage sand layer above the blind pipes into a whole, and the landfill type water seepage slope faces extend to a specific drainage area. By means of the method, the greening system can be formed. The greening method for high water level impermeable saline and alkaline lands and the greening system adopting the method facilitate water discharge and salt discharge, improve growing environment of plants and are particularly suitable for survival and growth of plants in high water level clay saline and alkaline lands.

The invention discloses a foundation heating device and a construction method for foundation heating combined vacuum prepressing of a soft soil foundation by applying such device. Vertical plastic draining plates are arranged in a foundation, plate heads of the vertical plastic draining plates are connected to transversely arranged filter pipes, outlet ends of all filter pipes are communicated with an inlet of a pressure guiding flow separating device, heating devices are further arranged in the foundation, a sand cushion layer is paved on the foundation, the filter pipes are buried in the sand cushion layer, a thermal insulation layer is paved on the sand cushion layer, and a sealing film is paved on the thermal insulation layer to form a closed vacuum prepressing system. During work, the pressure guiding flow separating device is firstly opened to perform foundation reinforcing treatment by a general vacuum prepressing method; when general drainage consolidation is performed to the later stage, a temperature control heating body is opened to perform foundation heating, meanwhile the foundation is vacuumized, and by controlling a foundation heating temperature and a foundation absolute pressure, water content in the foundation is converted to a gas state from a liquid state, and therefore, the water content of the foundation is further reduced, and the strength of the foundation is increased.

The invention discloses a van-type no-tillage improved high-yield cultivation method of cold mud field. According to the method, the van width of the gully field with serious gleying can be about 3.0m; the van width of the field with light gleying can be 4.0-5.0m or more; the van length can be determined according to the field shape; the width of the van ditch is 30cm and the depth is 20-30cm; the ditch penetrates through the whole rice field; the rice plantation rule adopts wide and narrow row spacing plantation, namely, the narrow row is 20-23cm and the wide row is 43.33-50.00cm; a drainage ditch is formed between two vans in order to drain water; the dug soil can be uniformly paved on the whole van along the length direction of the van in order to ensure that the van is 15-20cm higher than the water level; the fertilizer application method is as follows: based on the application of proper nitrogen-phosphorus-potassium fertilizer, 100kg of silicon-calcium fertilizer applied in per mu is used as a modifier in order to regulate pH value and redox potential of the soil in winter paddy field. With the adoption of the cultivation method, rice yield in one season can be improved by more than 5%.

The invention discloses an efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members, which can remove oxidation films and can activate the surface of a workpiece so as to lead anodes of repair members or film-free workpieces to be oxidized and coated with films. The conditioning fluid contains 20-30wt% of strong base, 2-20wt% of antisludging agents, 2-20wt% of dispersing agents and 0.05-1wt% of activating agents, and the balance being water. Temperature of workpeices in the conditioning fluid ranges from 50 DEG C to 80 DEG C, and the processingtime is 1-30min. Stability of bath solution is good, bearing capacity is large, maintenance is easy, and no environment pollution can be caused. Mechanical property of the processed titanium and titanium alloy cannot be reduced, and quality of oxidation films can be ensured.

The invention relates to an ice-water accumulation body tunnel surrounding rock reinforcing and excavating method under the influence of seasonal rainfall and a surrounding rock support. The reinforcing method comprises the following steps of S1, constructing a grout stopping wall; S2, arranging a radial grouting guide pipe on a primary support, and conducting grouting reinforcement; S3, conducting advanced drilling and curtain grouting reinforcement; S4, constructing pipe shed holes in the outer arch part of an excavated contour line; S6, arranging pipe shed steel pipes in a driving mode, andconducting pipe shed grouting; and S7, additionally arranging advanced small guide pipe grouting supports on the arch part and side walls. According to the excavating method, surrounding rock is reinforced by adopting above reinforcing method, temporary cross braces are erected in a tunnel, the grout stopping wall is broken, and excavation is carried out by adopting a small-section three-step method. The surrounding rock support comprises the grout stopping wall, a waterproof curtain, a grouting section which is a radial grouting guide pipe grouting supporting section, a pipe shed steel pipecurtain grouting supporting section, and an advanced small guide pipe grouting supporting section. In the curtain grouting process, grout can be prevented from flowing back to squeeze and crack a primary support behind a tunnel face.