31results about How to "Reliable water supply" patented technology

The invention provides a vacuum holding type dejectas collecting system. The vacuum holding type dejectas collecting system comprises a first water tank, a second water tank, a third water tank, a fourth water tank, a squatting toilet, a sitting toilet, a grey water unit, a dining car water supply unit, a first sewage tank, a second sewage tank, a vacuum generator and a control unit, wherein sewage draining exits are formed in two ends of both the first sewage tank and the second sewage tank; washing water inlets are formed parallel to the sewage draining exits; and vacuum connections are arranged on the upper end surfaces of the first sewage tank and the second sewage tank so that the first sewage tank and the second sewage tank are connected with the vacuum generator. Due to the additionally arranged sewage tanks, the sewage and dirt are collected in the whole dejectas collecting system so that the dejectas collecting system has a very good protecting effect on the train operation surrounding environment and toilets of a train can be continuously used after arriving at stations. Due to the adoption of the vacuum holding type dejectas collecting system, the amount of water used to flush the toilets is greatly reduced so that water resources can be effectively saved and the flushing effect is improved.

The invention relates to a horizontal MVC evaporator. The horizontal MVC evaporator comprises a cylinder body, a condenser and a raw water inlet, wherein a first-level evaporation chamber, a second-level evaporation chamber and a third-level evaporation chamber are arranged in the cylinder body and are connected in series side by side and are respectively provided with multiple rows of horizontally arranged evaporation pipes. According to the horizontal MVC evaporator, by virtue of a horizontal pipe falling film evaporator, a system is only operated by virtue of an electrically driven vapor compressor, and except the vapor compressor, operation parts of the MVC evaporator are extremely few, so that the operation is simple, the operation energy consumption is low, and high-purity deionized water can be produced with low cost; the horizontal MVC evaporator can be applied to industries of factories, power stations, oil fields and the like which need to consume a large amount of high-purity deionized water; by virtue of the process, a stable, reliable and long-term boiler feed water source can be provided.

The invention discloses a double-pump automatic circular water charging system of a coal mine hydrostatic tank. The system comprises an automatic hydrostatic tank water level monitoring relay and a double-pump automatic circular control circuit, wherein the automatic hydrostatic tank water level monitoring relay comprises a hydrostatic tank low water level probe, a hydrostatic tank high water level probe, a semiconductor turning circuit and a hydrostatic tank water level output relay; the semiconductor turning circuit consists of a transformer, a voltage stabilizing circuit, a triode, a diode and a resistor; the double-pump automatic circular control circuit comprises a first deep well pump motor contactor, a second deep well pump motor contactor and an automatic circular control relay logic control circuit; the automatic hydrostatic tank water level monitoring relay provides a low water level pump starting relay contact signal and a high water level pump stopping relay contact signal; and the double-pump automatic circular control circuit realizes an automatic circular control function of two deep well pumps according to the height of the water level of the hydrostatic tank. Through the system, automatic circular work of a water charging pump of a coal mine ground hydrostatic tank is realized to alternately and automatically charge water; and high water level automatic monitoring and low water level automatic monitoring of the coal mine hydrostatic tank are realized.

A water supply method is characterized in that two fluids with different densities are filled in a container 1. A basic unit of the water supply method comprises the container 1, and a pipeline 3 and a pipeline 4 are connected onto the container 1. Two basic units are arranged at different heights, one unit is that a first container 1 and a second container 2 are connected through the pipeline 3 and the pipeline 4, and the other unit is that a third container 11 and a fourth container 12 are connected through a pipeline 13, the third container 11 and a container 10 are connected through a pipeline 14. The water supply method and a unit and a device of the water supply method have the advantages that by means of the continuity of the fluids in the containers, the water supply device does not affect water pressure from a tap water pipe network and is not affected by water quantity of the tap water pipe network, and accordingly the safety of the pipe network and reliable water supply are guaranteed.

The invention discloses a water supply system and a water supply scheme of a water-turbine generator set in a heavy sediment-carrying river. The water supply system achieves switch of multiple water supply schemes through a combination of a four-way valve and a three-way valve; one of the water supply schemes is selected according to external conditions, normal operation of the water-turbine generator set on any conditions is guaranteed, and purposes of safety and saving energy are achieved. Meanwhile, water supply directions can be switched by the four-way valve, the purpose of water supply in forward and reverse is achieved, silt depositing in pipelines and blocking the pipelines are avoided, and the cooling effect of the water-turbine generator set is improved. The water supply system and the water supply scheme of a water-turbine generator set in the heavy sediment-carrying river has the advantages that not only technical water supply schemes can be switched flexibly according to water quality situation of the water source, but also the water supply is safe, reliable and energy-saving and the like.

The invention relates to the technical field of motor heat dissipation, in particular to an outer rotor brushless motor heat dissipation assembly which comprises a motor shaft, a shell, a stator and a rotor, the left end opening and the right end opening of the shell are fixedly installed on the motor shaft through bearings, the stator is fixedly installed on the motor shaft, and the rotor is arranged on the periphery of the stator. The rotor is fixedly installed in the middle of the inner side of the shell, and a belt wheel is installed on a protruding pipe opening in the left side of the shell. Different from the prior art, according to the invention, the fan blades on the right side are improved to be electrically-driven heat dissipation fan blades, the rotating speed of the fan blades is not related to the rotating speed of the brushless motor, the fan blades are independently driven, the rotating speed of the fan blades can be adjusted according to needs to change the air inlet flow speed, and different heat dissipation effects are achieved; and according to the invention, the heat exchange pipes are arranged on the two sides of the motor shaft, and air cooling is combined, so that the air flow entering the shell is cooled, heat is directly taken away through the low-temperature air flow while cooling is conducted through heat exchange, and the heat dissipation effect of liquid cooling is greatly improved through the design mode.

The invention discloses a water supply and drainage structure for building automatic control equipment. The water supply and drainage structure comprises a water tank, wherein a filter is arranged atthe lower end of the interior of the water tank; a water level sensor is arranged on the inner sidewall of the water tank; a water intake pipe is arranged at one side of the water tank; a drainage pipe is arranged at one side of the water intake pipe; a check valve and a No.1 water pump are arranged in the water intake pipe, and the No.1 water pump is arranged under the check valve; a flow-limiting valve is arranged at the lower end of the water tank; a water collection pipeline is arranged at the lower end of the flow-limiting valve; a No.2 water pump is arranged in the water collection pipeline. The water supply and drainage structure provided by the invention is simple in structure, reasonable in design, convenient in operation and management and reliable in water supply, and water supply and drainage demands of the building automatic control equipment can be satisfied.

The invention is applicable to the technical field of water supply equipment, and provides a secondary water supply device for servo motors. The secondary water supply device comprises a water inlet assembly, a water outlet assembly and a control assembly, wherein the water inlet assembly comprises a base, two mounting plates, a water storage tank, a water inlet pipe, a pressure sensor and a wateroutlet pipe; the mounting plates are fixedly connected with the base and are correspondingly positioned on the two sides of the base; and the water storage tank is fixedly connected with the mountingplates. According to the device, the servo motors, the pressure sensor, a signal isolator and an industrial control touch screen are arranged, pressure signals representing the pressure level detected by the pressure sensor can be divided into two parts by the signal isolator and are transmitted to the two servo motors, the rotating speeds of the servo motors are changed by integrated single chipmicrocomputers of the servo motors according to pressure values, therefore, a constant-pressure effect is achieved, the circumstance that water use is influenced due to insufficient water pressure ofhigh-rise users is prevented, and water supply for the high-rise users is safe, reliable, stable and energy-saving.

The invention discloses a hot air evacuation type anti-freezing water feeding system of a passenger train. The anti-freezing water feeding system comprises a plurality of unit water supply stations. Each unit water supply station comprises an insulated house, a water feeding pipeline, a water draining pipeline and a hot air pipeline, wherein an inlet of the water feeding pipeline is connected with a railway station water supply pipeline, an outlet of the water feeding pipeline is led out from the insulated house and connected with a water feeding hose and a water feeding connector, an inlet of the water draining pipeline communicates with the water feeding pipeline, and the water feeding pipeline and the water draining pipeline are each provided with an electromagnetic valve. An evacuation air outlet of each hot air pipeline is led out from the corresponding insulated house and used for being connected with the water feeding connector during evacuation. An automatic control device is further arranged in each insulated house and used for controlling open and close of all the electromagnetic valves and the corresponding hot air pipeline. The hot air evacuation type anti-freezing water feeding system of the passenger train has the beneficial effects that residual water in the water feeding hose and the water feeding pipeline can be evacuated and recovered after water feeding, the interiors of the pipelines can be dried, the pipelines are effectively prevented from being blocked by freezing, and therefore timely and reliable water supply can be guaranteed. The overflowing phenomenon caused by excessive water supply can be prevented, so that waste of the water resources is avoided.

The invention aims to provide an internal-rotation vertical type bionic drag-reducing testing experiment platform which comprises a pool, a torque signal coupler, a device base, a device frame, and a rotary drum, wherein a liquid is filled in the pool, the device frame is arranged in the pool and is of a non-closed structure, the device base is fixed on the device frame, a water distributing sealing cavity and a device cavity are fixed on the device frame, the water distributing sealing cavity is located in the device cavity, a frequency modulation motor is fixed on the device cavity, the torque signal coupler is installed on the inner wall of the device cavity through a signal coupler base, the frequency modulation motor is connected with the torque signal coupler through an elastic pin coupler, a water distributing hollow shaft is arranged in the water distributing sealing cavity, the upper end of the water distributing hollow shaft is connected with the torque signal coupler through a plum blossom coupler, the lower end of the water distributing hollow shaft is connected with the rotary cylinder, the rotary cylinder is arranged in the device frame, a water pump is communicated with the pool through a first water pipe, and the water pump is communicated with the water distributing sealing cavity through a second water pipe. The internal-rotation vertical type bionic drag-reducing testing experiment platform is small in volume, simple in structure and convenient to operate.

The invention discloses a water supply control method for a water-turbine generator set technique. The water supply control method includes a water supply control method of a water pump and a water intake control method of a top cover. According to the water intake control method of the top cover, automatic switching to water supply by the water pump can be conducted under the three conditions that (1) the pressure or flow of a water supply main pipe is lower than a set value, a three-way valve is switched to the drain position in a delayed mode, and then the water pump is started; (2) the pressures of the top cover are high, the pressures of the top cover are obtained from a water intake main pipe of the top cover and a pressure transmitter at the front end of a pressure relief valve of the top cover, the three-way valve is switched to the drain position when any pressure of the top cover is high, two electric drain valves for the drain valve of the top cover are opened at the same time for pressure relief, the electric drain valves are closed when the three-way valve is switched to the drain position and the high pressures of the top cover reset, and the water pump is started at the same time; and (3) a monitoring far end sends a command for switching from water intake of the top cover to water supply of the water pump. According to the water supply control method for the water-turbine generator set technique, the water supply control flow of the water-turbine generator set technique is designed optimally, so that the water supply mode is made safe and reliable.

The invention provides a natural cooling module which comprises a heat pipe heat exchanger I, a heat pipe heat exchanger II, an intermediate heat exchanger, a fan, a frame and an electric control box. A cold side inlet of the intermediate heat exchanger introduces a working medium through a pipeline I, wherein the working medium is cooled by the heat pipe heat exchanger I and the heat pipe heat exchanger II. After absorbing high-temperature return water heat in the intermediate heat exchanger, the working medium evaporates, the working medium flows into the heat pipe heat exchanger I and the heat pipe heat exchanger II through a pipeline II connected with an inlet of the heat pipe heat exchanger I and an inlet of the heat pipe heat exchanger II to be condensed, and high-temperature return water on the heat side is cooled to low-temperature supplied water. Return water of cooling water is cooled directly through a natural cold source via the intermediate heat exchanger, Freon type refrigeration working media are adopted in the heat pipe heat exchanger I and the heat pipe heat exchanger II, the situation that the heat exchangers are subjected to frost cracking in the winter due to the fact that water directly enters the heat exchangers is avoided, and the problem of corrosion generated when water is added into an antifreezing solution to enter the heat exchangers is avoided; and an energy-saving and reliable water supply manner is provided for places with needs for cooling water.

The invention discloses a constant-pressure water supply system based on a PLC (Programmable Logic Controller) technology. The constant-pressure water supply system based on the PLC technology is characterized by comprising a water supply pipeline, a PLC, a frequency converter, a display, a water pump group and a plurality of pressure sensors, wherein the pressure sensors are arranged on the water supply pipeline; and the PLC is provided with an automatic timing water supply module and a warning module. The constant-pressure water supply system has the real-time water pressure detection function and various water pressure regulation modes; the data processing capability is high; the water supply is stable and reliable; and the practical value is high.

The invention relates to a horizontal MVC evaporator. The horizontal MVC evaporator comprises a cylinder body, a condenser and a raw water inlet, wherein a first-level evaporation chamber, a second-level evaporation chamber and a third-level evaporation chamber are arranged in the cylinder body and are connected in series side by side and are respectively provided with multiple rows of horizontally arranged evaporation pipes. According to the horizontal MVC evaporator, by virtue of a horizontal pipe falling film evaporator, a system is only operated by virtue of an electrically driven vapor compressor, and except the vapor compressor, operation parts of the MVC evaporator are extremely few, so that the operation is simple, the operation energy consumption is low, and high-purity deionized water can be produced with low cost; the horizontal MVC evaporator can be applied to industries of factories, power stations, oil fields and the like which need to consume a large amount of high-purity deionized water; by virtue of the process, a stable, reliable and long-term boiler feed water source can be provided.

The invention discloses a hot air evacuation type anti-freezing water feeding system of a passenger train. The anti-freezing water feeding system comprises a plurality of unit water supply stations. Each unit water supply station comprises an insulated house, a water feeding pipeline, a water draining pipeline and a hot air pipeline, wherein an inlet of the water feeding pipeline is connected with a railway station water supply pipeline, an outlet of the water feeding pipeline is led out from the insulated house and connected with a water feeding hose and a water feeding connector, an inlet of the water draining pipeline communicates with the water feeding pipeline, and the water feeding pipeline and the water draining pipeline are each provided with an electromagnetic valve. An evacuation air outlet of each hot air pipeline is led out from the corresponding insulated house and used for being connected with the water feeding connector during evacuation. An automatic control device is further arranged in each insulated house and used for controlling open and close of all the electromagnetic valves and the corresponding hot air pipeline. The hot air evacuation type anti-freezing water feeding system of the passenger train has the beneficial effects that residual water in the water feeding hose and the water feeding pipeline can be evacuated and recovered after water feeding, the interiors of the pipelines can be dried, the pipelines are effectively prevented from being blocked by freezing, and therefore timely and reliable water supply can be guaranteed. The overflowing phenomenon caused by excessive water supply can be prevented, so that waste of the water resources is avoided.

The invention relates to a biomass briquette combustion system. The system comprises a feeding system, a boiler main machine, an economizer, an air preheater, a cyclone dust collector, a bag-type dust collector, an induced draft fan, a chimney and a control system; the feeding system comprises a closed bucket elevator, a closed storage bin, a closed scraper conveyer, a front daily material bin and a screw feeder; a variable-frequency motor is arranged in the screw feeder. Biomass briquette is separated from a combustion fire bed in the boiler main machine through the screw feeder, and the problem of tempering of traditional coal bucket type feeding is completely eradicated; double-layer high-pressure secondary air is designed in the boiler main machine, so that the biomass briquette can be fully combusted in a hearth; a convection section in the boiler main machine is designed to be of a wide-interval, sequential-arrangement and four-return-stroke design structure; the control system is used for automatically controlling boiler feeding, deslagging, hearth temperature, fire grate speed regulation and variable-frequency regulation of the variable-frequency motor and the induced draft fan according to set programs.

The invention discloses a pet drinker, belonging to the field of pet products. The pet drinker solves the technical problem of inconvenient water drinking of a pet after going-out of a pet owner in the prior art. The pet drinker provided by the invention comprises a base, wherein the base is provided with a water inlet, a water jet and an inductive switch; the water jet is arranged on the upper surface of the base and communicated with the water inlet; the water inlet is connected with a water source via a water pipe which is provided with an electromagnetic control valve; meanwhile, the pet drinker also comprises a control system, wherein the electromagnetic control valve and the inductive switch are electrically connected with the control system.

The invention discloses a construction site fire-fighting device with stable water supply, and belongs to the technical field of fire-fighting equipment. The construction site fire-fighting device with the stable water supply comprises a water storage tank, a pressure tank, a control device, an electric water pump, a one-way valve, a pressure stabilizing valve and a plurality of fire valves, wherein the plurality of fire valves are arranged on a fire-fighting pipeline, the pressure tank is provided with the control device, the control device controls the electric water pump, one end of the electric water pump communicates with the water storage tank, the other end of the electric water pump communicates with the fire-fighting pipeline through the one-way valve, the bottom of the pressure tank communicates with the pressure stabilizing valve, the other end of the pressure stabilizing valve communicates with the fire-fighting pipeline, the control device comprises an electric contact pressure gauge, a low-voltage starting relay and a high-voltage stop relay, the electric contact pressure gauge is provided with three wiring terminals, namely the common wiring terminal, the low-voltagewiring terminal and the high-voltage wiring terminal, a live wire is connected from the common wiring terminal, the low-voltage wiring terminal is connected with the low-voltage starting relay, the high-voltage wiring terminal is connected with the high-voltage stop relay, and the low-voltage starting relay and the high-voltage stop relay are both connected with a null line. The construction sitefire-fighting device is stable in water supply, convenient and fast to operate and low in cost.

The invention relates to a fully automatic water supply equipment that is environmental friendly and energy saving. Wherein, a flow stabilizing and balancing device (2), a water pump unit (5) and a CPU inverter control cabinet (6) are mounted on a multi-functional base (1). The invention is a small equipment integrating optics, mechanics with electrics. The fully automatic controlling is realized through treating the pressure at the water inlet / outlet by a pressure treating device, also through the judgment and frequency conversion by the CPU; remote and local controlling is realized by a touch screen tech and the intelligent CPU management; the man-machine interface can display different tables and curves; the operation is easy and reliable; the water inlet is directly connected with a tap-water pipe network, the pressure of tap water from the municipal engineering is fully taken use; the water outlet is connected with the pipes of users, an enclosed water supply is formed, no water tank and pond are needed. The inner wall is treated with an environmental-friendly ceramic coating, therefore the equipment is environmental friendly and energy saving, can be widely used in different fields for living water.

The invention discloses a coal mine static pressure water supplying device capable of automatically and rotatably replenishing water. The problems that cost input is high, and requirements of safe andeconomic water supplying of a coal mine can not met in the prior art are solved. The coal mine static pressure water supplying device comprises a coal mine ground static pressure pool, and a pipelinefor supplying water to the underground coal mine is installed on coal mine ground static pressure pool. The coal mine static pressure water supplying device is characterized in that a first deep wellwater pump is installed in a first water well, a first deep well water pump water replenishing pipeline is connected above the first deep well water pump, and the first deep well water pump water replenishing pipeline communicates with the coal mine ground static pressure pool; and a second deep well water pump is installed in a second water well, a second deep well water pump water replenishingpipeline is connected above the second deep well water pump, and the second deep well water pump water replenishing pipeline communicates with the coal mine ground static pressure pool. The coal minestatic pressure water supplying device is reasonable in design, compact in structure, can realize automatic rotation working and alternate automatic water replenishing of a water replenishing pump ofthe coal mine ground static pressure pool, and can automatically monitor high and low water levels of the coal mine static pressure pool, safe and reliable in using, and saving in management cost.

The invention discloses a rice seed soaking and germination accelerating intelligent controller which comprises a panel liquid crystal displaying system and a PCB. A central processor, a sensor system, a driving system, a communication module, a storage device, a liquid crystal driver HT1621, a manually-set circuit and an optocoupler 6001 are arranged on the PCB. An STC single chip microcomputer is used for controlling the central processor. The driving system, the storage device and the liquid crystal driver HT1621 are respectively connected with the central processor. The panel liquid crystal displaying system and the liquid crystal driver HT1621 are connected. The communication module is connected with the storage device. The sensor system comprises a sensor conversion module and a sensor. The sensor conversion module is connected with the central processor. A wiring terminal of the sensor conversion module is externally connected with the sensor. The driving system comprises an optocoupler PC817 and a strong current outputting terminal. The optocoupler PC817 is connected with the central processor. The strong current outputting terminal is externally connected with an executing component. According to the rice seed soaking and germination accelerating intelligent controller, computer concentrated control and wired remote control on relevant rice seed soaking and germination accelerating devices and environmental temperatures can be achieved. The environment requirements for rice breeding can be met.

The invention relates to the field of water supply control, in particular to a water pump control system used for the low water period of power plant construction. The water pump control system comprises a main pump and a standby pump which are located at two water sources. The main pump and the standby pump are connected with a water tank of a living area through pipelines. A flow switch K2 is mounted at a main water inlet pipe in front of the water tank and controls starting and stopping of the water pumps according to the flow. A control circuit comprises a main switch CB, a main pump contactor KM1 and a standby pump contactor KM2, wherein the main pump contactor KM1 and the standby pump contactor KM2 are in parallel connection and are both connected with the flow switch K2. A normally-closed contact of the standby pump contactor KM2 is in series connection with the main pump contactor KM1. The two water pumps are arranged to operate respectively. When the flow of the main pump is reduced, the main pump stops operating, and meanwhile the standby pump is automatically started. When the flow of the standby pump is reduced, the main pump and the standby pump stop operation simultaneously. After water level of a water well recovers in a certain time, control circulation can be repeated till the water tank is injected to the standard water level, and overburning of the water pumps is avoided.

The invention discloses a suction water-outlet on-line restorative immersion type ultrafiltration membrane pool and relates to the technical field of feedwater treatment process. The ultrafiltration membrane pool comprises membrane pool structuring, water production process and membrane pool cleaning, realizes sharing of an immersion type ultrafiltration membrane water production pump and a chemical cleaning circulating pump in a unit, adopts two sets of siphon pipes to separate water inlet and water outlet of the membrane pool from the corresponding water inlet master canal and water outlet master canal, and realizes zero leakage between the adjacent membrane pools and other buildings through controlling the siphon start and stop when each membrane pool is in the ultrafiltration membrane maintenance and restorative cleaning processes. The suction water-outlet on-line restorative immersion type ultrafiltration membrane pool has a simple structure, is convenient in operation and maintenance, easy to clean, and safe and reliable in water supply and can be comprehensively popularized.

The invention discloses a plateau mountain high-pressure water supply water purification system. The plateau mountain high-pressure water supply water purification system comprises a water supply water purification car (22) and a plurality of preset water sacs; the plurality of preset water sacs are distributed at preset locations in a plateau mountainous area at intervals and any adjacent two water sacs communicated with each other; the water inlet end of the water supply water purification car (22) is communicated with a water source (1); the water outlet end of the water supply water purification car (22) is communicated with the nearest water sacs; the water supply water purification car (22) is used to draw water from the water source (1) and then deliver water to the multiple water sacs. The plateau mountain high-pressure water supply water purification system disclosed in the invention can reliably and effectively provide water for the plateau mountain area, fully satisfies people's water supply requirements, improves people's work and life quality, is favorable for widespread promotion and application, and has practical significance of production.

The invention discloses a double-pump automatic circular water charging system of a coal mine hydrostatic tank. The system comprises an automatic hydrostatic tank water level monitoring relay and a double-pump automatic circular control circuit, wherein the automatic hydrostatic tank water level monitoring relay comprises a hydrostatic tank low water level probe, a hydrostatic tank high water level probe, a semiconductor turning circuit and a hydrostatic tank water level output relay; the semiconductor turning circuit consists of a transformer, a voltage stabilizing circuit, a triode, a diodeand a resistor; the double-pump automatic circular control circuit comprises a first deep well pump motor contactor, a second deep well pump motor contactor and an automatic circular control relay logic control circuit; the automatic hydrostatic tank water level monitoring relay provides a low water level pump starting relay contact signal and a high water level pump stopping relay contact signal; and the double-pump automatic circular control circuit realizes an automatic circular control function of two deep well pumps according to the height of the water level of the hydrostatic tank. Through the system, automatic circular work of a water charging pump of a coal mine ground hydrostatic tank is realized to alternately and automatically charge water; and high water level automatic monitoring and low water level automatic monitoring of the coal mine hydrostatic tank are realized.

The invention provides a pressure test device for a diesel engine air distributor body. A flange plate and the right end of an air distributor body are positioned and sealed, a pressing plate and the left end of the air distributor body are positioned and sealed, the flange plate and the pressing plate are fixedly connected into a whole through a long bolt connected to the pressing plate in a sealed mode, and a pressing sealing piece I is arranged on the flange plate; a positioning block is fixed to the outer wall of the flange plate, a connector sealing piece is arranged on the pressing plate, an orifice of an air channel III is fixedly connected with a screw plug in a threaded mode, and a hoop sealing piece used for sealing the air channel VIII and an air channel IV is detachably fixed to the outer circumferential wall of the air distributor body. The pressure test device solves the quality problem of leakage in the test process of the diesel engine air distributor body, improves the quality of the air distributor body, provides a reliable sealing structure for pressure and sealing of various air distributor bodies with complex holes of products of the same type, and is simple in structure, low in machining and manufacturing cost, convenient to install, good in universality and safety, suitable for pressure tests of various media and easy to popularize.

The intelligent control system is characterized by comprising a water pump, a fan, a frequency converter, an electric valve, a host controller, a pressure transmitter, a liquid level transmitter, a flow meter, a router and a remote module, a water pump is arranged on one side of the fan, frequency converters are arranged on one side of the water pump and one side of the fan, the frequency converters are electrically connected with the fan and the water pump, valves are arranged on one sides of the frequency converters, the valves are communicated with the fan and the water pump, and the valves are electrically connected with the frequency converters; a host controller is arranged on one side of the frequency converter and electrically connected with the frequency converter. A pressure transmitter and a liquid level transmitter are arranged on one side of the host controller; the pressure transmitter and the liquid level transmitter are electrically connected with the host controller; the device is simple in structure and convenient to use, flushing time and parameters can be set through the system, an automatic working button is started, the system can automatically run, unattended operation is achieved, meanwhile, the running condition of equipment is monitored at any time through an APP, corresponding parameters are adjusted at any time, remote direct control can be achieved, the structure is simple, maintenance is easy, and operation is convenient. Water supply is reliable.

The invention discloses a water supply system and a water supply scheme of a water-turbine generator set in a heavy sediment-carrying river. The water supply system achieves switch of multiple water supply schemes through a combination of a four-way valve and a three-way valve; one of the water supply schemes is selected according to external conditions, normal operation of the water-turbine generator set on any conditions is guaranteed, and purposes of safety and saving energy are achieved. Meanwhile, water supply directions can be switched by the four-way valve, the purpose of water supply in forward and reverse is achieved, silt depositing in pipelines and blocking the pipelines are avoided, and the cooling effect of the water-turbine generator set is improved. The water supply system and the water supply scheme of a water-turbine generator set in the heavy sediment-carrying river has the advantages that not only technical water supply schemes can be switched flexibly according to water quality situation of the water source, but also the water supply is safe, reliable and energy-saving and the like.