128 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 provides a system of a pumped storage coupled compressed air energy storage underground gas storage with an air cushion type surge shaft and an operation method. The system comprises a compressed air energy storage system and a pumped storage system. The interior of the water-gas co-containing bin is divided into an upper-layer gas storage chamber and a lower-layer water storage chamber through a flexible material. The air inlet end of the compression system is communicated with the second air path; the air outlet end of the compression system is connected to the air inlet of the upper-layer air storage chamber through a first air path; a first air valve is mounted on the first air path; a gas outlet of the upper-layer gas storage chamber is connected to the expansion unit through a third gas path, and a second gas valve is mounted on the third gas path; and a detection sensor is mounted in the water-gas co-containing bin. The stability and economical efficiency of the compressed air energy storage are improved, the compressed air utilization rate is increased, the combined operation mode of compressed air energy storage and pumped storage is simplified, the combined dispatching mode of novel energy storage is optimized, and then the safety and reliability of pumped storage are improved.

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 utility model relates to the technical field of petroleum drilling and production, in particular to drilling fluid on-line monitoring equipment which comprises a surge tank, a manual three-way ball valve, an anti-explosion pneumatic ball valve, an anti-explosion pressure transmitter, an overflow chamber, a drain pipe and an anti-explosion temperature transmitter. Fluid is pumped by a pump and guided into a surge tank, temperature measurement is carried out through an anti-explosion temperature transmitter, real-time temperature data are output, high-temperature alarm is carried out through linkage with an anti-explosion pneumatic ball valve, flow adjustment is carried out on the fluid through a manual three-way ball valve, and the fluid continuously flows upwards to an overflow port through the anti-explosion pneumatic ball valve and then overflows into an overflow chamber. And during measurement, the explosion-proof pneumatic ball valve is closed, the fluid in a measurement area is static, the output pressure is measured through the explosion-proof pressure transmitter, the density of the output fluid is calculated by adopting a formula, and the equipment can detect the fluid in real time and give a high-temperature alarm, is rapid in detection and high in efficiency, and is suitable for large-scale popularization and application. The device is suitable for various complex working conditions and fluids.

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.

A secondary flow system for a low Reynolds number wind tunnel relates to the technical field of turbine blade cascade aerothermal performance testing. The present invention solves the problem that existing secondary flow systems cannot simultaneously provide multiple secondary flows to the blade cascade for testing during the test process. The air compression assembly, dryer, pressure-surge tank, switch valve, regulating valve, flow meter and multi-nozzle pressure-surge tank of the present invention are connected in sequence from left to right and then connected to the test chamber, and the multi-nozzle pressure-surge tank provides simultaneous multiple secondary flows to multiple blade cascades in the test chamber; wherein, when the test piece inlet is throttled, the pressure of the test section is low. At this time, compressed air is provided to the pressure-surge tank through the suction unit in the wind tunnel system, thereby providing the air source required for the secondary flow test; when the pressure of the test section is high, compressed air is provided to the pressure-surge tank through the air compressor of the air compression assembly, thereby providing the air source required for the secondary flow test. The present invention is used for multi-path secondary flow turbine blade cascade testing.

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 invention discloses water purification type full-automatic non-negative pressure water supply equipment, and relates to the technical field of non-negative pressure water supply equipment. The device comprises a mounting plate, a control cabinet, a steady-flow compensation tank, a vacuum suppressor, a surge tank, a variable-frequency booster pump set, a drainage pipe system and a water inlet pipe system, wherein one side of the steady-flow compensation tank is open, and a second flange plate is mounted at the open end; the steady flow compensation tank is connected with a filter cartridge through a first flange plate; a supporting frame is fixed to the first flange plate, a sliding installation plate is arranged on the supporting frame in a sliding mode, an electric telescopic rod is installed on the supporting frame, and the sliding installation plate is connected with the telescopic end of the electric telescopic rod. The electric telescopic rod drives the sliding mounting plate to drive the suction component to axially move, the rotary suction branch pipe driven by the motor is matched, dynamic cleaning of the inner wall of the filter cartridge is achieved, online cleaning can be achieved without shutdown, continuous and stable operation of a water supply system is guaranteed, and the technical problem that a traditional cleaning mode must be shut down is thoroughly solved.

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 present invention relates to a method for monitoring the operating conditions of a surge tank of a hydropower unit based on MFCC and a fault model library. A soundprint sensor is used to collect the soundprint signal of the surge tank. Based on historical data of the soundprint signal, liquid level signal, vibration signal, and pressure pulsation signal of known surge tank faults, a soundprint model library containing typical soundprint features is established for quickly comparing and identifying whether common faults are present under the current operating condition based on the soundprint signal of the current surge tank. Furthermore, a fault model library containing soundprint, liquid level, vibration, and pressure pulsation feature data is constructed for comparing and identifying whether known faults are present under the current operating condition based on the soundprint, liquid level, vibration, and pressure pulsation signals of the current unit. The present invention achieves real-time, online, high-precision, and automatic identification of surge tank faults, significantly improving the efficiency and accuracy of fault diagnosis and reducing downtime and maintenance costs caused by misdiagnosis or missed diagnosis.

The utility model discloses a rainwater recycling device which comprises a rainwater recycling reservoir, a water pump set, a surge tank, a pressure sensor, a water outlet device and a relay set. The rainwater recycling reservoir, the water pump set and the water outlet equipment are sequentially communicated through pipelines. The surge tank and the pressure sensor are arranged on a pipeline between the water pump group and the water outlet equipment; the pressure sensor is provided with a lower limit contact and an upper limit contact, the relay group comprises a relay contact, and the relay group is connected with the power supply circuit through the lower limit contact and the upper limit contact; the water pump set is connected with a power circuit through a relay contact. And the water outlet pressure of the treated rainwater can meet the preset requirement.

The utility model relates to the technical field of evaporator buffer tanks, and discloses an evaporator buffer tank structure which comprises a lifting frame assembly and a buffer tank arranged on the lifting frame assembly, the buffer tank is provided with an inlet pipe and an outlet pipe respectively, and a buffer tank thickened bottom is fixedly spliced at the lower end of the buffer tank. A plurality of sets of connecting openings are formed in the bottom face of the thickened bottom of the buffer tank in a penetrating mode, rolling wheels are movably installed in the connecting openings, the lifting frame assembly comprises a fixed arc-shaped frame, a first opening and closing arc-shaped frame and a second opening and closing arc-shaped frame are movably installed at the two ends of the fixed arc-shaped frame through hinges correspondingly, and a movable plate is arranged in the fixed arc-shaped frame. The first opening and closing arc-shaped frame and the second opening and closing arc-shaped frame are opened, then the movable plate is turned over, the movable plate is distributed in an inclined mode, the buffer tank is pushed at the moment, the buffer tank moves into the lifting frame assembly along the movable plate under the auxiliary action of multiple sets of idler wheels, the situation that the buffer tank is lifted and carried in a traditional mode is avoided, and the effect of saving manpower is achieved.

To provide a hydrogen station capable of storing hydrogen remaining in a vaporization unit as low-pressure hydrogen without discarding it, and also capable of reducing pressure in the vaporization unit.SOLUTION: A hydrogen station comprises a liquid hydrogen tank, a vaporization unit, a pressure sensor, a high-pressure accumulation container, a surge tank, a low-pressure accumulation container, a dispenser, and a control unit. The control unit employs means for closing a flow path to the high-pressure accumulation container and opening the flow path to the surge tank when the pressure sensor detects a first pressure value, and for closing the flow path to the surge tank and opening the flow path to the low-pressure accumulator container when the pressure sensor detects a second pressure value or less.SELECTED DRAWING: Figure 1

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 relates to the field of turbocharger detection, in particular to a turbocharger test bed which comprises a detection part, a preheating part, a combustion chamber, an air pressure part and an adjusting part. The detection part is used for metering the flow of the compression end through a vortex shedding flowmeter, and realizing real-time surge alarm based on the pressure hysteresis effect of the surge tank and the linkage of the pressure difference transmitter; the preheating part is connected with the combustion chamber in series, a heating pipe in the preheating cylinder preheats inlet air, and the combustion chamber improves the combustion efficiency through a flow equalizing ring and a perforated flow equalizing pipe; the air pressure part generates high-pressure pulse airflow through an air pressure tank and the double electromagnetic valves; the adjusting part heats the split-flow gas through the heat transfer pipe wound around the tail pipe, and the temperature and components of the mixed gas are finely adjusted by combining a three-port split-flow valve. According to the scheme, the problems of inaccurate temperature control, pulse simulation distortion, surge detection lagging and gas adjustment rigidity of a traditional test bed are solved, limit performance testing of the turbocharger under the multi-parameter coupling working condition is achieved, the testing precision is improved, and the coverage range is widened.

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.

This invention provides a system and operation method for an underground gas storage facility with pumped-storage and compressed-air energy storage coupled with a pressure-regulating well. The system includes a compressed-air energy storage system and a pumped-storage system. The interior of the water-gas co-containment chamber is divided into an upper gas storage chamber and a lower water storage chamber by a flexible material partition. The air inlet of the compression system is connected to a second air path. The air outlet of the compression system is connected to the air inlet of the upper gas storage chamber via a first air path. A first air valve is installed in the first air path. The air outlet of the upper gas storage chamber is connected to an expander unit via a third air path, and a second air valve is installed in the third air path. Detection sensors are installed inside the water-gas co-containment chamber. This invention improves the stability and economy of the compressed-air energy storage facility, increases the utilization rate of compressed air, simplifies the joint operation of compressed-air energy storage and pumped-storage, optimizes the joint scheduling mode of the new energy storage system, and thus enhances the safety and reliability of pumped-storage.

The utility model belongs to the field of ice melting and snow removing of high-speed railway motor train bogies, and particularly relates to an ice melting and snow removing hot water pressurizing device for a motor train unit. The utility model aims to solve the problems that the ice-melting and snow-removing operation conditions of the existing bogie of the motor train unit are limited, the working efficiency is low, the labor intensity is high, and the operation time is difficult to guarantee. The device consists of a water supply system, a heat source unit, a secondary pressurizing device and a handheld spray gun, the water supply system is composed of a water tank, a circulating booster pump, a plate heat exchanger, an electromagnetic valve and a filtering device. The heat source unit is composed of a make-up pump, a water softening device, a surge tank, a circulating pump and an electric heating plate type heat exchanger. The secondary pressurizing device is composed of a plunger pump, a second pressure sensor and a second valve, and the secondary pressurizing device is connected with the handheld spray gun through a high-pressure hose and a quick connector. The ice melting and snow removing device is used for ice melting and snow removing operation of the motor train unit bogie.

The invention relates to the technical field of rock tests, in particular to an experimental device and method for dynamically corroding reservoir rock through CO2 in different phase states, the experimental device comprises a generation system used for generating CO2 in different phase states, and the generation system is communicated with a dynamic corrosion reaction system and an ion concentration detection system through a six-way valve; the generation system comprises a first water bath box, and a surge tank is arranged in the first water bath box; a temperature control system for controlling the temperature in the first water bath box is arranged in the first water bath box; the pipeline between the pressure release valve and the six-way valve is communicated with a pressure real-time monitoring system; the pressure real-time monitoring system is communicated with the pipeline between the dynamic corrosion reaction system and the dynamic circulating system; the dynamic corrosion reaction system comprises a second water bath box, a reaction kettle is arranged in the second water bath box, a sample bracket for placing a plurality of rock samples is arranged in the reaction kettle, and the reaction kettle is filled with a soaking solution for soaking the rock samples. According to the method, a theoretical basis can be effectively provided for selection of the CO2 storage phase state.

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.