76 results about "Surge tank" patented technology

The invention relates to a centrifugal compressor high-altitude environment dynamic simulation test system. The system comprises a compressor test module; the high-altitude environment simulation module comprises an air inlet surge tank, an air inlet assembly and a first air exhaust assembly which are arranged at the upstream of the air inlet pipeline, and an air exhaust surge tank and a second air exhaust assembly which are arranged at the downstream of the air exhaust pipeline; a measurement module; the control module is used for comparing the first actually-measured pressure value with a target altitude pressure value of the air inlet end and controlling the air inlet amount of the air inlet assembly and the air suction amount of the first air suction assembly according to a comparison result, so that the pressure of the air inlet pressure stabilizing tank is stabilized at the target altitude pressure of the air inlet end; and the control module compares the second actually measured pressure value with the target altitude pressure value of the exhaust end, and controls the air suction amount of the second air suction assembly according to the comparison result, so that the pressure of the exhaust surge tank is stabilized at the target altitude pressure value of the exhaust end. It is ensured that test data can truly reflect the actual plateau working condition performance of the gas compressor.

The invention relates to the field of sewage treatment, and provides an automatic start-stop regulation and control method for multiple sets of water treatment equipment, which comprises the following steps: calculating the number of fixed-frequency lifting pumps needing to be regulated in k cycles; calculating the frequency of the variable frequency lift pump in the k period by using a BP-pid algorithm, and calculating a weighting coefficient of the k + 1 period; according to the frequency of the variable-frequency lifting pump, the operation time of the variable-frequency lifting pump and the actual liquid level of the storage pond, the accurate number of the fixed-frequency lifting pumps needing to be adjusted in the k period is obtained through correction; and the number of the fixed-frequency lifting pumps needing to operate in the k period is determined. The problem that in the prior art, starting and stopping of the lifting pump are controlled through segmented liquid levels, so that acceleration equipment losses are caused is solved, and the intelligent control efficiency of the storage pond lifting pump system is remarkably improved.

The invention relates to the technical field of fire-fighting equipment, in particular to a diaphragm fire-fighting water pump with an automatic pressure stabilizing function and application thereof.The diaphragm fire-fighting water pump comprises a water pump body, a pressure stabilizing pump is fixed to the front side of the water pump body, a pressure stabilizing tank is fixed to the right side of the pressure stabilizing pump, and a film is fixed to the middle of the pressure stabilizing tank; a pressure supplementing assembly is arranged in the upper half part of the surge tank and comprises a pressure supplementing plate, an abutting rod and a cylinder sleeve, the upper end of the abutting rod is slidably connected with the cylinder sleeve, and a pressure spring used for pressing the abutting rod downwards is arranged in the cylinder sleeve; a gear is rotationally connected to the outer wall of the sleeve, a toothed plate is fixed to the outer wall of the abutting rod, a transverse plate is fixed to the right side wall of the gear, and a metal sheet is arranged above the transverse plate. By arranging the pressure supplementing assembly, in winter, the abutting rod downwards presses the pressure supplementing plate to downwards press the thin film, the pressure lost due to temperature reduction above the thin film is supplemented, pipe network water pressure reduction caused by air pressure reduction in winter is prevented, and burnout of the stabilized pressure pump is avoided; and meanwhile, by arranging an adjusting structure, the pressure can be adjusted and supplemented according to actual conditions during use, so that the practicability is improved.

The utility model provides a kind of buffer tank emergency discharge safety device, including tank body, the bottom of the tank body is provided with mushroom pole, the bottom of the tank body is fixedly provided with conical bottom, the middle part of the conical bottom is equipped with discharge port, the bottom gap of the mushroom pole passes through discharge port and is fixedly connected with sealing plate, the mushroom pole is equipped with the supporting spring located above discharge port, door type water scraping frame is provided in the tank body, the top of the door type water scraping frame is fixedly connected with positioning shaft, the positioning shaft is set and both rotationally sealed cooperation for the top of tank body.In the utility model, the door type water scraping frame that can rotate is arranged in the tank body, when the door type water scraping frame rotates, the rubber scraping strip one and rubber scraping strip two thereon can quickly scrape the liquid adhered on the inner wall of the tank body, accelerate liquid downflow, improve water scraping efficiency, by setting servo motor for controlling type water scraping frame rotation, so that the water scraping operation of the inner wall of the tank body is more labor-saving and convenient.

The utility model relates to the technical field of surge tanks, in particular to a VOCS (volatile organic compounds) recovery surge tank which comprises a separation tank, an air inlet is arranged at one end of the separation tank, an air outlet is arranged at the other end of the separation tank, a guide pipe is arranged at the air inlet towards the air outlet and penetrates through the separation tank, and a filter structure is arranged on the inner wall of the separation tank relative to the air outlet. The filtering structure covers the air outlet, and the air inlet, the guide pipe, the filtering structure and the air outlet are coaxially arranged; a waste liquid tank is connected below the separation tank, the diameter of the waste liquid tank is smaller than that of the separation tank, a flow guide pipe is arranged between the separation tank and the waste liquid tank, and the flow guide pipe is communicated with the bottom edge of the separation tank and located between the guide pipe and the filtering structure. The utility model aims to quickly and stably separate the liquid part in the volatile gas to be treated.

The utility model belongs to the technical field of secondary pressurizing water supply equipment, and particularly relates to a secondary water supply pressurizing pump room applied to a high-rise building, which comprises a pump room, a water tank is arranged in the pump room, one side of the water tank is communicated with a municipal water supply pipeline, the other side of the water tank is communicated with the water inlet end of a water pump, and the water outlet end of the water pump is communicated with a surge tank; the surge tank comprises a tank body, round pipes are coaxially arranged at the two ends of the tank body, a capsule body is arranged in the tank body, the two round pipes are communicated with the capsule body through connecting pieces, a pressure cavity is defined by the inner wall of the tank body and the outer wall of the capsule body, an air pipe is arranged on the tank body and communicated with the pressure cavity, and the connecting piece located at one end of the tank body is communicated with the water outlet end of the water pump. The connecting piece at the other end of the tank body is communicated with a user water distribution pipe through a pipeline. According to the utility model, the resident can obtain continuous and stable water flow in the water using process, so that the water using convenience is improved, the water using requirement of the resident is met, and the living quality is improved.

The utility model relates to an anti-blocking device for a drain loop of a surge tank. The anti-blocking device comprises the surge tank, the condenser is communicated with the pressure equalizing box through a first drainage pipeline; the throttling assembly is arranged on the first drainage pipeline; the second drainage pipeline is connected with the throttling assembly in parallel; and one end of the third drainage pipeline communicates with the first drainage pipeline, and the other end of the second drainage pipeline communicates with the condenser. Two drainage pipelines are additionally arranged on the basis of an original surge tank drainage pipeline, one drainage pipeline is connected with a throttling assembly arranged on the original drainage pipeline in parallel, and therefore when the throttling assembly is blocked in the operation process, pipeline switching can be conducted in time, and smooth drainage is guaranteed; one end of the newly-added drainage pipeline is connected with the original drainage pipeline, the other end of the newly-added drainage pipeline is connected with the position above the liquid level of the condenser, the height of the connecting position of the drainage pipeline and the condenser is correspondingly increased, and the influence of hydrostatic pressure in the condenser on drainage is avoided.

The invention relates to a two-supply steady flow tank and a water supply system, and relates to the technical field of water supply and drainage. The tank body has an inner cavity; the partition assembly is arranged in an inner cavity of the tank body, the partition assembly divides the inner cavity of the tank body into a conventional cavity and a precipitation cavity in the height direction of the tank body, the tank body is provided with a liquid inlet and a liquid outlet at the conventional cavity, and the tank body is provided with a cleaning port and a drain outlet at the precipitation cavity; in the first state, the partition assembly is opened, so that the conventional cavity is communicated with the precipitation cavity, and the cleaning opening and the drain outlet are in a closed state; in the second state, the partition assembly is closed, so that the conventional cavity and the precipitation cavity are separated, and the cleaning opening and the drain outlet are in an open state. The partition assembly separates the conventional cavity from the precipitation cavity during cleaning, so that water in the conventional cavity is not affected when the precipitation cavity is cleaned, water shortage of a user side is avoided, normal water use of a user is not affected, the service life of equipment can be prolonged, the fault frequency is reduced, and the risk of water cut-off is reduced.

The utility model discloses an integrated oxygen generator which comprises a box body, the interior of the box body is divided into mutually independent chambers through partition plates, and a compressor, a drying device, a compressed air tank, a molecular sieve adsorption tower and a control unit are installed in the chambers respectively. The compressor, the drying equipment, the compressed air tank and the molecular sieve adsorption tower are connected together through preset pipelines among the chambers, so that directional conveying of gas is realized. The utility model aims to provide a modularized integrated deployment which integrates a plurality of oxygen production function units which are originally distributed in a scattered manner into a single box body. Field welding assembly is replaced by a factory preassembled pipeline to realize pipeline connection, the field installation workload is reduced, a two-stage buffer structure with a main gas storage tank and auxiliary surge tank mode formed by double compressed air tanks is adopted to stabilize the pressure fluctuation of gas, the problems of large occupied area and complex installation of traditional split equipment are solved, and the production efficiency is improved. The stability, the continuity, the energy efficiency and the economical efficiency of oxygen production are remarkably improved.

The utility model relates to the technical field of silica gel cat litter production, in particular to a gel making surge tank for silica gel cat litter production, which comprises a base and a placing box arranged at the upper end of the base. And the discharging assembly comprises two sets of push plates which are inserted into the inner wall of the containing box and are symmetrical to each other, two sets of storage cylinders which are symmetrical to each other are arranged in the containing box, and push rods are inserted into the middle ends of the storage cylinders. Air is injected into the containing box through two air inlet pipes at the same time, the air pressure in the containing box is increased, the two push plates are pushed to move when the air pressure in the containing box is increased, and therefore solutions in the containing box can be pressed into the reaction tank at the same time for a reaction; the moving distances of the two push plates can be respectively controlled by controlling the air inflow of the two air inlet pipes and the air pressure in the placing box, so that the feeding contents of the sodium silicate solution and the sulfuric acid solution can be respectively controlled, namely the feeding proportion of the sodium silicate solution and the sulfuric acid solution can be controlled.

The utility model discloses a surge tank structure of a marine methanol supply pipeline, which comprises a methanol supply pipeline and a nitrogen inerting system, the methanol supply pipeline is provided with a surge tank, and the top of the surge tank is provided with a gas inlet connected with the nitrogen inerting system through an electronic ball valve. A pressure sensor in signal connection with the electronic ball valve is installed on a pipeline between the electronic ball valve and the gas inlet, a dynamic pressure adjusting mechanism is constructed, when the pressure drops to a preset value, nitrogen is supplemented into the surge tank in time through a nitrogen inerting system, and unsmooth methanol fuel supply caused by sudden pressure drop is avoided; a safety valve used for exhausting is further installed at the top of the surge tank, when the pressure in the surge tank is too high, the safety valve is automatically opened to exhaust redundant gas, the situation that a methanol supply pipeline is impacted due to the too high pressure is avoided, the methanol leakage risk is reduced, meanwhile, the service life of the pipeline and related equipment is prolonged, and the operation and maintenance cost of the ship is reduced.

The utility model relates to a low pressure test air inlet control tooling structure, including: frame, push rod, surge tank, pressure regulating valve, beam tube wheel and pressure gauge, the frame is provided with bumping post and elastic square post respectively, the push rod is connected with the frame front end in rotary connection mode, the front end of the push rod is provided with arc hook, and the front end of the push rod is connected with the elastic square post. A rotary supporting frame is arranged on the outer side of the arc hook, the beam tube wheel is arranged in the frame and rotationally connected with the frame, a buffer tube is evenly wound on the beam tube wheel, and the surge tank is in pipeline connection with the pressure gauge through the pressure regulating valve and the buffer tube. According to the utility model, the pump can be quickly pried through the running fit of the push rod and the frame, and the air inlet of the mechanical seal cavity is completely separated from the ground through the support of the rotating support, so that a tester can quickly connect a test pipeline; gas pumped manually passes through the pressure stabilizing tank, the pressure regulating valve and the buffer pipe and then enters the mechanical seal cavity, the speed is low, the flow speed is stable, the mechanical seal cavity is not prone to being damaged, and manual inflation is facilitated for control and adjustment.

The invention discloses a construction method of surge shaft steel lining concrete, which comprises the following steps: firstly binding a surge shaft reinforcement cage, then constructing surge shaft side wall steel lining concrete, and then constructing surge shaft bottom plate steel lining concrete. During surge shaft side wall steel lining concrete construction, a steel lining plate is used as a formwork for concrete pouring; when the surge shaft bottom plate steel lining concrete is constructed, the steel rib plates are arranged above the bottom plate reinforcement cage, the L-shaped anchor bars are fixedly connected with the bottom plate reinforcement cage, and the surge shaft bottom plate is divided into a grid shape by welding the adjacent steel rib plates together; bottom plate concrete is poured; the bottom face of the bottom plate lining steel plate is coated with glue, bonded to the surface of concrete and connected with the side face of the steel rib plate in a welded mode. While reliable connection of the steel lining and the concrete is guaranteed, it is guaranteed that the bottom concrete is poured compactly at a time, the construction technology is simplified, the construction progress is accelerated, the construction quality is improved, and the construction cost is saved.

This invention provides an intelligent filling and drainage system and method for high-head pumped storage water diversion tunnels, comprising: a filling pipeline and a drainage pipeline connecting the lower horizontal tunnel of the water diversion tunnel; the inlet of the filling pipeline is connected to the tailrace pipe, and the outlet of the filling pipeline is connected to the upstream side of the inlet valve of the lower horizontal tunnel; the inlet of the drainage pipeline is connected to the upstream side of the inlet valve of the lower horizontal tunnel, and the outlet of the drainage pipeline is connected to the tailrace surge tank; the drainage system further includes a drainage gallery connecting the middle horizontal tunnel of the water diversion tunnel, and the outlet of the drainage gallery is connected to the lower reservoir. This invention can realize intelligent filling and drainage of water diversion tunnels, and can effectively reduce the vibration of the unit's drainage needle valve during filling and drainage.

The utility model relates to the technical field of surge tanks, in particular to a surge tank air supply mechanism of a VOCS (volatile organic compounds) recovery device, which comprises an air supply structure, one end of the air supply structure is connected with a surge tank, and the other end of the air supply structure is provided with an air exhaust pry; the air supply structure comprises an air supply bus and a first air supply branch, the air supply bus is connected to the surge tank, one end of the first air supply branch is connected to the air supply bus, the other end of the first air supply branch is provided with a first air supply inlet opposite to the air exhaust pry, and the first air supply branch is provided with a flow regulating valve. The utility model aims to quickly and stably adjust the internal pressure of the surge tank.

The utility model relates to the technical field of boiler water supply, in particular to a boiler water supply pressure stabilizing device which comprises a fixing seat and a boiler water supply pump, a carbon steel pressure stabilizing tank is fixedly connected to the inner wall face of the fixing seat, and a water inlet pipe is fixedly installed on the upper portion of the outer surface of the boiler water supply pump in a penetrating mode. An input pipe is fixedly installed in the middle of the right end of the boiler water feeding pump in a penetrating mode, the right end of the input pipe is fixedly connected with the lower portion of the left end of the carbon steel surge tank in a penetrating mode, a check valve is movably installed on the right portion of the outer surface of the input pipe in a penetrating mode, and a water feeding pressure stabilizing set is fixedly connected to the middle of the inner wall face of the carbon steel surge tank. According to the boiler water supply pressure stabilizing device, the carbon steel pressure stabilizing tank and the water supply pressure stabilizing set inside the carbon steel pressure stabilizing tank are arranged, water flow entering the device is buffered and adjusted in a multiple mode, the water flow is decelerated and dispersed in sequence, the flow direction of the water flow is changed, the water flow is more stable in the carbon steel pressure stabilizing tank, impact and fluctuation of the water flow are effectively reduced, and the service life of the water supply pressure stabilizing device is prolonged. Therefore, the pressure output to the boiler water supply pipe network is stabilized.

The utility model discloses a kind of deep well regulating reservoirs, it is related to regulating reservoirs technical field, including deep well body, the top of deep well body is equipped with well along, and the top of well along is covered with well lid, the inner wall of well along is symmetrically welded with connecting plate, and the inside of connecting plate is inserted with surrounding fence, the inside of well along is provided with slot, and the inside of slot is connected with threaded rod by bearing. The utility model is provided with surrounding fence and connecting plate, when needing to maintain and maintain deep well body, staff can first lift surrounding fence, to realize the shielding of the opening of the top of deep well body, so that the inside of deep well body can be effectively prevented from inadvertently falling tool in the process of maintenance, provided with sliding block and connecting rod, in the process of use, by the cooperation of sliding block and sliding slot, the stability in the process of lifting surrounding fence can be conveniently improved, and the surrounding fence connected with the top of surrounding fence can increase the force point when lifting surrounding fence.

The utility model relates to a power plant condenser steam jet vacuum-pumping system which comprises a condenser, a water ring vacuum pump, a multi-stage steam ejector, a steam surge tank and a combined type steam condenser, and the condenser is connected with the water ring vacuum pump and a first-stage steam ejector through a pipeline. Power steam passes through the steam surge tank and then is connected into inlets of the multi-stage steam ejectors, the first-stage steam ejector comprises two steam ejectors arranged in parallel, the combined steam condenser comprises multi-stage condensing devices corresponding to the multi-stage steam ejectors in number, and the multi-stage steam ejectors are sequentially connected with the multi-stage condensing devices in series. An inlet of the first-stage condensing device is connected with a cooling water inlet pipe, an outlet of the last-stage condensing device is connected with a cooling water outlet pipe, and the multiple stages of condensing devices return water to the condenser hot well through U-shaped pipes. The originally configured water ring vacuum pump is put into operation only when the machine is started and vacuum is established, the cavitation condition does not exist, the back pressure of the unit can be reduced in the cylinder switching process in winter, and the air blowing influence of a turbine is reduced.

The application provides a water diversion method for lifting water head of a small river hydropower station, comprising a water diversion tunnel, a surge tank, a Y-shaped branch pipe and a stepped pressure shaft. The water diversion tunnel takes the water inlet of the hydropower station as a starting point and the surge tank as a terminal point. The surge tank is connected with the Y-shaped branch pipe, which changes one pipe of the water diversion tunnel into two pipes. The Y-shaped branch pipe is connected with two parallel arranged stepped pressure shafts. The two stepped pressure shafts are composed of four parallel arranged horizontal tunnels and three vertical shafts, and the terminal point is a water inlet ball valve of a unit plant. Through the water diversion method, the water head of the hydropower station can be significantly lifted to 845-922 m, and the reference flow can be increased by 2 times. Not only the water head loss is reduced, but also the power generation capacity is significantly improved, reaching the scale of a large hydropower station.

The utility model discloses a complete pressurizing unit of an intelligent pressure test control system. The complete pressurizing unit comprises a test water tank, a surge tank, an underground water tank and an intelligent control cabinet, the test water tank provides a constant-pressure water source for the surge tank through the reciprocating pump, and the surge tank is connected with the detachable plate heat exchangers through multiple groups of parallel branches to realize synchronous water injection, pressure boosting and pressure maintaining; the underground water tank forms an external circulation system through the soft water settling tank, the sand tank and the blue dirt separator, and the centrifugal pump is combined to filter, recycle and reuse the softened water; the intelligent control cabinet integrates a PLC and an HMI touch screen, regulates and controls pressure, temperature and water flow balance in real time, automatically generates a pressure test data report and stores the pressure test data report to a computer operation end. Through multi-branch synchronous operation, closed-loop water circulation and full-automatic control, the pressure testing efficiency is improved to 6 times that of manual operation, the repeated utilization rate of softened water reaches 95%, water resource waste and manual intervention risks are remarkably reduced, and the device has the advantages of being efficient, safe and environmentally friendly.

The utility model provides a pressure-stabilizing rectifying high-pressure water-spraying fire extinguisher which comprises a rack, a water tank, a gasoline engine, a high-pressure pump, a pilot-operated pressure reducing valve, a water spraying pipe and a pressure-stabilizing tank, the water tank is arranged on the upper side in the rack, the gasoline engine and the high-pressure pump are arranged on the lower side in the rack, and the gasoline engine is used for driving the high-pressure pump; a water supply pipeline is arranged between the bottom of the water tank and a water inlet of the high-pressure pump in a penetrating mode, a water outlet of the high-pressure pump is connected with an inlet of the pilot-operated type pressure reducing valve in a penetrating mode, an outlet of the pilot-operated type pressure reducing valve is connected with an inlet of the water spraying pipe in a penetrating mode, and the surge tank is connected with the water spraying pipe in a penetrating mode. The spraying water pressure is stable, the water outlet atomization effect is good, and meanwhile the throttle handle is arranged on the inner side of the machine frame and can be effectively prevented from being accidentally damaged.

The utility model discloses an improved gas-liquid separation buffer tank, and relates to the technical field of gas-liquid separation. The improved gas-liquid separation buffer tank comprises a separation tank and a cleaning mechanism, the cleaning mechanism is arranged in the separation tank and comprises a water inlet tank, a hollow rod, a water outlet nozzle and a water distribution pipe, the water inlet tank is fixedly mounted at the top of the separation tank, and the bottom of the water inlet tank is rotationally connected and communicated with one end of the hollow rod; the other end of the hollow rod extends into the separation tank, two groups of water distribution pipes are fixedly mounted on the outer wall of the hollow rod, water outlet holes are formed in the outer walls of the water distribution pipes, a plurality of groups of water outlet nozzles are fixedly mounted on the outer wall of the hollow rod, and the water outlet nozzles and the water distribution pipes are communicated with the hollow rod. Oil drops adhered to the cyclone separation cylinder and the defoaming net can be cleaned without opening the device, so that the difficulty of cleaning the device by workers is reduced, the interior of the device can be kept clean, the separation effect of the device is ensured, and the usability and practicability of the device are improved.

The invention discloses an unmanned operation method with dust falling and fire extinguishing functions, which is characterized by comprising the following steps: S1, generating water mist with the particle size of about 10 microns through an ultrasonic water mist device carried on an unmanned vehicle platform, and directionally covering a dust raising area to realize PM2.5-level particulate matter sedimentation; s2, a large-flow water column is emitted to a fire source through a fire water monitor integrated on the same unmanned vehicle platform, and the spraying angle is adjusted in real time through a long-distance remote control system; the technology is realized as follows: an ultrasonic water mist device (the particle size of water mist is about 10 microns) and a fire water monitor share a water supply system, and flow dynamic distribution is realized through a shunt electromagnetic valve; according to the technology, 5G remote control and AI autonomous path planning are adopted, and personnel do not need to enter a dangerous area; the technology is realized as follows: three-stage filtration (200 meshes to 500 meshes to 10 [mu] m ceramic filter elements) guarantees water quality, and a booster pump and a surge tank reduce energy consumption; the technology is realized as follows: the Mesh ad hoc network realizes multi-vehicle dynamic task allocation.

The utility model discloses non-negative-pressure water supply equipment, which relates to the technical field of non-negative-pressure variable-frequency water supply and comprises a mounting base and a water storage tank inner wall cleaning device. A water supply control cabinet is fixedly mounted at the top of the mounting base, a surge tank is fixedly connected to the top of the mounting base, and a water conveying pipe is fixedly connected to the left end of the surge tank; the water storage tank inner wall cleaning device comprises a rotating shaft, five T-shaped cleaning scrapers, a large gear, a driving motor and a driving gear, the rotating shaft is rotatably connected to the interior of the surge tank, the five T-shaped cleaning scrapers are fixedly connected to the surface of the rotating shaft and make contact with the inner wall of the surge tank, the right end of the rotating shaft extends to the exterior of the surge tank, and the large gear is fixedly connected to the surface of the large gear. The scale on the inner wall of the surge tank can be cleaned to the outside without detaching the surge tank by a worker, so that the convenience of cleaning the scale on the inner wall of the surge tank is simplified, the labor intensity of cleaning the scale by the worker is reduced, and the time of cleaning the scale on the inner wall of the surge tank is shortened.

A kind of buffer tank for preventing leakage, including cylindrical tank body with cavity, the upper of the tank body is equipped with for sealing the upper head of tank body, the lower of the tank body is equipped with for sealing the lower head of tank body, the lower end side wall of the tank body is equipped with the air inlet pipe being arranged in horizontal direction, the upper end side wall of the tank body is equipped with the air outlet pipe being arranged in horizontal direction, the junction of the air inlet pipe with tank body is equipped with first reinforcing ring and second reinforcing ring, the first reinforcing ring is located in the outer wall of tank body, the second reinforcing ring is located in the inner wall of tank body;The junction of the air outlet pipe with tank body is equipped with third reinforcing ring and fourth reinforcing ring, the third reinforcing ring is located in the outer wall of tank body, the fourth reinforcing ring is located in the inner wall of tank body.

In an intake manifold made of a resin and including: a surge tank 2 applied to an engine, an intake air flowing into the surge tank 2; and branch pipes 3a and 3b branched from the surge tank 2 and connected to intake ports of the engine, a pillar portion 20 penetrating through an internal space of the surge tank 2 and connecting an inner wall 12 and an outer wall 13 facing each other is included, and a cross section perpendicular to an extending direction of the pillar portion 20 has an oval shape elongated in an passing direction of the intake air inside the surge tank 2.

The invention relates to the technical field of hydroelectric energy system transition process and control, in particular to a cooperative control method for a pumped storage-wind power combined operation system, and the method comprises the steps: obtaining a system multi-frequency dynamic characteristic analysis result which comprises the dynamic response of a low-frequency mass wave, an intermediate-frequency water hammer wave and a high-frequency electric wave and the coupling relation between a subsystem and a wavelet; in combination with a cooperative control theory, selecting the rotating speed and the guide vane opening of the pump turbine as key state variables, determining a macro-variable and deducing a control equation; the strategy is adopted to pertinently control the wavelets to preferentially control the intermediate-frequency water hammer waves, and system cooperative accurate control is achieved by regulating and controlling key state variables such as the water level of a surge chamber and the rotating speed of a unit. According to the method, multi-source coupling disturbance can be effectively inhibited, the stability and the adjusting performance of the system are improved, and the method is adaptive to various pumped storage-wind power combined operation scenes and is high in universality.

The utility model discloses a waste water cooling buffer tank which comprises a buffer tank body, a water inlet pipe is arranged on the side surface of the buffer tank body, an adjusting valve is arranged in the water inlet pipe, a receiving box is fixedly connected to the side surface of the buffer tank body, and a pipe is fixedly connected to the lower surface of the receiving box. The side surface of the buffer tank body is fixedly connected with a cooling liquid box, and the side surface of the cooling liquid box is fixedly connected with a water pump. The cooling liquid tank, the receiving box, the water pump, the spraying plate and the refrigerating machine are matched, waste water in the water inlet pipe can be cooled through cooling water, the situation that the temperature of the waste water is too high to affect follow-up links and treatment is avoided, meanwhile, the adjusting valve is cooled, and scalding caused by too high temperature of the adjusting valve when personnel close or open the adjusting valve is avoided; and the used cooling water can be discharged and recycled after being refrigerated, so that waste can be effectively avoided.

The utility model provides a pneumatic valve pressure stabilizing device. The pneumatic valve pressure stabilizing device comprises a compressed air main pipe, a pressure stabilizing pipe assembly, a pressure stabilizing tank, an air inlet check valve, a normally-open electromagnetic valve, a main pipe check valve, a pressure transmitter and a control unit. The air inlet check valve is connected to the pressure stabilizing air inlet pipe; the normally open electromagnetic valve is connected to the pressure stabilizing air outlet pipe; the mother pipe check valve and the pressure transmitter are connected to the compressed air mother pipe; the control unit is used for receiving pressure signals of the pressure transmitter and controlling opening and closing of the normally-open type electromagnetic valve. According to the utility model, the normally open solenoid valve can be controlled to be opened through the control unit, and the compressed air mother pipe is supplied with air through high-pressure air stored in the surge tank; and under the condition of sudden power loss, the normally-open electromagnetic valve is automatically opened, and the compressed air mother pipe can be supplemented with air through the high-pressure air stored in the pressure stabilizing tank, so that the air supplementing requirement of the pneumatic valve executing mechanism is met. The device disclosed by the utility model has lower equipment investment and operation cost.

The utility model provides an air pressure control module for microfluidics and a nano-particle synthesis system. The air pressure control module comprises more than two air pressure control assemblies and a control module, each air pressure control assembly comprises an air pump; the input end of the proportional valve is connected to the output end of the air pump; an output line; an air hole is formed in the surge tank; wherein the inlet of the surge tank and the inlet of the output pipeline are connected to the output end of the proportional valve. By means of the air pressure control module for microfluidics, the output air pressure of the air pump can be controlled through the proportional valve; besides, the cavity of the pressure stabilizing tank plays a role in buffering and stabilizing the pressure of the air, when the output air pressure is too large, the area of a channel in the proportional valve is reduced or even the channel is closed, at the moment, the pressure can be released through an air hole formed in the pressure stabilizing tank so as to accelerate the release speed of the air pressure, and the pressure stabilizing effect is better. It is further ensured that the air pressure control module can provide air with stable air pressure.