25results about How to "Accurate flow regulation" patented technology

The invention provides a digital hydraulic pump test bed and a digital hydraulic pump control performance verification method. The invention provides a digital hydraulic pump test bed. The digital hydraulic pump test bed comprises a driving module and a loading module, wherein the driving module comprises a tested hydraulic pump, a direct-current adjustable-speed motor, a plurality of couplings and a shock absorber, one ends of the couplings are connected with the tested hydraulic pump, the other ends of the couplings are connected with the direct-current adjustable-speed motor, the shock absorber is connected with the direct-current adjustable-speed motor, and the sensors are installed on the tested hydraulic pump; a plurality of pressure oil ports of the tested hydraulic pump are connected with the loading module, the loading module comprises a bridge loop and a loading loop, the plurality of pressure oil ports are respectively connected with a first series connection point and a second series connection point of the bridge loop, and a parallel connection point of the bridge loop is connected to the loading loop. The digital hydraulic pump test bed and the digital hydraulic pump control performance verification method are used for verifying the key control performance of the digital hydraulic pump and are wide in application range.

The invention discloses a dynamic adaptation and multi-level feedback control solid heat storage system and method.The system comprises a heat storage unit, a feedback control system, a self-adaptation control module and a dynamic flow adjusting device, the heat storage unit is connected with the feedback control system and the self-adaptation control module, the self-adaptation control module is connected with the feedback control system, and the dynamic flow adjusting device is connected with the feedback control system. The dynamic flow adjusting device is arranged on the heat storage unit and connected with the feedback control system and the self-adaptive control module. The heat storage unit comprises a plurality of subareas, and a plurality of heat storage modules which are connected in series and in parallel are arranged in each subarea; the feedback control system comprises a multi-point sensor and is used for monitoring temperature and flow data of each subarea; the self-adaptive control module is used for dynamically adjusting the flow and the temperature of each partition in the heat storage unit by utilizing a multi-level feedback algorithm based on real-time data of the feedback control system; the dynamic flow adjusting device is used for adjusting flow distribution of all the subareas in the heat storage unit according to the load requirement.

The invention discloses a large-scale solid heat storage system and a control method, the system comprises a plurality of heat storage subareas, the heat storage subareas are arranged in parallel, inlets of the heat storage subareas are jointly connected with a main heat storage pipeline, and outlets of the heat storage subareas are jointly connected with a main heat release pipeline; each heat storage subarea comprises a plurality of heat storage pipe sections, the inlet pipe section of each heat storage pipe section is provided with a pipe section inlet valve, the outlet pipe section of each heat storage pipe section is provided with a pipe section outlet valve, the heat storage pipe sections are arranged in parallel, and each heat storage pipe section comprises a plurality of solid heat storage modules; the multiple solid heat storage modules are arranged between the pipe section inlet valve and the pipe section outlet valve in series, the inlet pipe section and the outlet pipe section of each heat storage pipe section are each provided with a temperature sensor, the temperature sensors are connected with a temperature flow feedback control unit, and the temperature flow feedback control units are connected with the pipe section inlet valves.

The invention discloses a gas-liquid atomization rotational flow mixing reaction device which comprises a mounting bracket, the mixing reaction chamber is detachably mounted on the mounting bracket through a bolt; the communicating chamber is detachably mounted at the top of the mixing reaction chamber through a bolt; the gas-liquid separation chamber is detachably mounted at the top of the communicating chamber through a bolt; the atomizing nozzle is fixedly connected to the mixing reaction chamber; the driving unit and the indicating unit are installed on the pressure regulating unit, and one end of the gas feeding pipe is fixedly connected to the atomizing nozzle. By adopting a gas-liquid atomization and rotational flow self-stirring structure, the problems that traditional mechanical stirring is slow in mixing, poor in uniformity and unbalanced in local proportion are fundamentally solved, the phenomena of back mixing and short circuit are eliminated, the reaction is more sufficient, crystallization is more uniform, the yield is higher, meanwhile, a stirring mechanism is omitted, the device is simplified, energy consumption is reduced, parameters such as pH and temperature are fed back more timely, and the production efficiency is improved. And the control precision is greatly improved.

The hydrogenation combustion-supporting system comprises a combustor body and a hydrogen nozzle, one end of the hydrogen nozzle is connected with a conveying pipeline, the other end of the conveying pipeline is connected with a first inlet, a first quick-closing valve is arranged on the first inlet, and a second quick-closing valve is arranged on the second inlet. An adjusting valve is arranged at the end, close to the hydrogen spraying opening, of the conveying pipeline, and a second inlet is formed in one side of the combustor body. The hydrogen burner has the beneficial effects that hydrogen is conveyed to the burner body along the conveying pipeline from the storage device through the first inlet, the flow of the hydrogen is controlled through the adjusting valve, the adjusting valve close to the hydrogen nozzle can accurately adjust the flow of the hydrogen, air enters the burner body through the second inlet, and the first quick-closing valve is arranged on the conveying pipeline; hydrogen and air are mixed in the combustor body, stability and high efficiency of the combustion process are ensured, and efficient combustion and low-load stable combustion of pulverized coal are achieved by means of the characteristics of low ignition temperature and high combustion speed of hydrogen.

The invention discloses an efficient SCR (Selective Catalytic Reduction) denitration device of a gas turbine unit and a denitration method. The device comprises a flow velocity measuring device, an ammonia water spraying device, a flue gas rectifying device and a catalyst layer, the flow velocity measuring device and the ammonia water spraying device are sequentially arranged at the upstream of the flue gas pipeline, probes of the flow velocity measuring device and nozzles of the ammonia water spraying device are uniformly distributed on different cross sections in the flue gas pipeline, and the probes and the nozzles are matched in number and position; the flue gas rectifying device is arranged in the middle and downstream of the flue gas pipeline and in front of the multi-stage heat exchanger, and the spiral flow of flue gas is converted into linear uniform flow along the flue gas channel; the catalyst layer is arranged in the flue gas pipeline and located between the multiple stages of heat exchangers. According to the characteristic that flue gas discharged by the gas turbine spirally flows, the ammonia water injection amount is adjusted through multi-point flow velocity measurement, spiral flowing is converted into linear flowing through the flue gas rectifying device, the uniformity degree of mixed gas is improved, full catalysis is achieved, and then efficient denitration is achieved.

The utility model discloses a thermal management system of a plug-in hybrid electric vehicle, and belongs to the technical field of plug-in hybrid electric vehicles. The system mainly comprises a motor electric control loop, a passenger compartment heating loop, a passenger compartment refrigerating loop, an engine loop and a battery loop, a warm air core body and a liquid-liquid heat exchanger which are used for heating are arranged in the passenger compartment heating loop, a cooler chiller used for refrigerating is arranged in the passenger compartment refrigerating loop, the motor electric control loop is connected with the passenger compartment heating loop in series, and the motor electric control loop is connected with the engine loop. The warm air core body is connected with the liquid-liquid heat exchanger in parallel and then is communicated with the battery loop; and the cooler chiller is communicated with a battery loop after being connected in series with the liquid-liquid heat exchanger. The motor electric control loop is connected with the passenger compartment heating loop in series, the warm air core and the liquid-liquid heat exchanger are connected into the passenger compartment heating loop and the battery loop in parallel, multi-heat-source cooperative utilization is achieved, heating stability is improved, meanwhile, a PTC or heat pump pipeline is omitted, production cost is reduced, extra energy consumption is greatly reduced, and the energy-saving and environment-friendly effects are achieved. The whole vehicle energy utilization rate is improved.

A plug valve in a CO2 air conditioning system comprises a hollow valve body, a throttling column with a through hole is arranged in the valve body, and the throttling column is floatingly arranged in the inner cavity of the valve body, an expansion groove is arranged on the throttling column, cylindrical sealing parts are symmetrically arranged on the left and right sides of the throttling column, and the cylindrical sealing parts are provided with contact surfaces adapted to the outer shape of the throttling column to form a hard seal together; a guide tube, a conical ring gasket, a butterfly spring and a plug cover are also arranged in the inner cavity of the valve body on the left and right sides of the cylindrical seal, one end of the guide tube is sealingly supported on the cylindrical seal, and the other end of the guide tube is sealingly supported on the plug cover, a conical ring gasket and a butterfly spring are mounted on the guide tube, and the plug cover presses the butterfly spring to make the cylindrical seal tightly embrace the throttling column to form a seal.

The utility model relates to a blanking equipment technical field especially, it is mainly solved the problem of low efficiency, low accuracy of the present technology in the blanking of the blanking bin, including frame, blanking bin body, two guide bin body, two vibration motors, support seat and two turnover doors, the blanking bin body is located on the frame, the bottom of blanking bin body has two discharge ports, two discharge ports are along the horizontal direction interval distribution, the blanking bin body includes the guide department between two discharge ports, two guide bin body is located in the lower part of blanking bin body respectively, each guide bin body includes first side plate, second side plate, third side plate and bottom plate, first side plate, second side plate, third side plate are located in the bottom plate in three edges, so that guide bin body has upper opening and side opening, each upper opening part area is connected with discharge port respectively, each turnover door is hinged with guide bin body respectively, and is distributed in the side opening, bottom plate is inclined distribution.

The invention discloses an oxygen mask oxygen supply control method and system based on deep reinforcement learning. The method comprises the steps that a control instruction a is generated according to the output state s of an oxygen mask oxygen supply device through a neural network, and an oxygen mask control device is regulated and controlled according to the control instruction a; wherein the neural network training step comprises the following steps: S1, determining an output state s of an oxygen mask oxygen supply device; s2, based on the output state s of the oxygen mask oxygen supply device, selecting an action a according to a 1-epsilon greedy strategy, executing the action a to obtain a corresponding reward r and a state s' at the next moment, and obtaining a tetrad (s, a, r, s'); and S3, randomly extracting tetrad data, and training the neural network by using a deep reinforcement learning algorithm until an iteration requirement is met. The control parameters can be dynamically adjusted, limitation of a fixed controller is eliminated, and more flexible and personalized oxygen supply control is achieved.

The utility model discloses a liquid double rotor compressor and air conditioning system, wherein liquid double rotor compressor includes compressor body and gas -liquid separation liquid storage jar A, the compressor body includes seal cylinder body, be equipped with upper pump cavity and lower pump cavity in the seal cylinder body, be equipped with upper eccentric rotor in the rotation of upper pump cavity, be equipped with lower eccentric rotor in the rotation of lower pump cavity, the top of seal cylinder body is equipped with liquid outlet B, the side bottom of seal cylinder body is equipped with liquid inlet B, the top of gas -liquid separation liquid storage jar A is equipped with liquid inlet A, the bottom of gas -liquid separation liquid storage jar A is equipped with liquid outlet A, liquid outlet A and liquid inlet B are communicated through liquid -passing pipe. The utility model discloses liquid double rotor compressor and air conditioning system can reduce the risk of fluorine pump cavitation and promote the operation efficiency.

The invention discloses a konjak product sampling detection system, and relates to the technical field of konjak product detection. Comprising a shell, a fixing plate is arranged in the shell, a detector is fixedly installed on the fixing plate, konjaku flour is detected through the detector, a conveying assembly is arranged in the shell and located below the fixing plate, and a conveying belt is arranged on the conveying assembly; a material storage box is fixedly installed in the shell and located on one side of the fixing plate, a discharging assembly is arranged in the material storage box, konjaku flour quantitatively falls onto the conveying belt through the discharging assembly, a spreading assembly is arranged at the top in the shell, and the konjaku flour falling onto the conveying belt is evenly spread through the spreading assembly. According to the konjaku flour distribution device, by using the discharging assembly and the flattening assembly, the distribution amount of konjaku flour can be accurately adjusted, the uniformity of konjaku flour spreading on the conveying belt is guaranteed, and therefore the accuracy of konjaku flour detection data of the detector is improved.

The utility model belongs to the technical field of water supply equipment, particularly relates to a time period flow adjusting device for variable-frequency water supply equipment, and aims to solve the problems that the flow adjusting mode of the conventional water supply equipment is single, accurate and real-time regulation and control are inconvenient, the device is complicated and easy to break down, the display of the adjusting state is not visual enough and the like. A water supply channel is formed in the connecting part, water inlet and outlet pipelines are fixedly installed on the two sides of the connecting part, and the two water inlet and outlet pipelines are communicated with the water supply channel and used for facilitating connection between the connecting part and an external water supply pipeline. According to the time period flow adjusting device of the variable-frequency water supply equipment, the rotating angle of the adjusting shaft can be accurately controlled through the servo motor, the water flow can be flexibly and accurately adjusted, and the differentiated water use requirements of different time periods are met; a water through hole is formed in the adjusting valve element, basic water flow supply is guaranteed, and water supply interruption is avoided; the device is compact in structure, reasonable in design, close in component matching and good in equipment stability and reliability.

The invention relates to the technical field of building water supply and drainage and sewage treatment, and particularly discloses an experimental park washing wastewater treatment method and equipment, the experimental park washing wastewater treatment equipment comprises a main frame, a washing pool is arranged above the main frame, an adjusting assembly is arranged below the washing pool, a coagulating sedimentation assembly is arranged below the adjusting assembly, and the coagulating sedimentation assembly is arranged below the main frame. An ozone oxidation assembly is arranged on the side, away from the adjusting assembly, of the coagulating sedimentation assembly, a middle water tank is arranged on the side, away from the coagulating sedimentation assembly, of the ozone oxidation assembly, and an anaerobic hydrolysis acidification assembly is arranged on the side, away from the ozone oxidation assembly, of the middle water tank; an anaerobic precipitation assembly is arranged on one side above the anaerobic hydrolysis acidification assembly; aiming at the characteristics of small one-time discharge amount, strong discontinuity and complex components of the washing wastewater in the experimental park, the pH value and flow of the wastewater are accurately adjusted, and the wastewater in different periods is temporarily stored in a separated manner, so that the quality and quantity of the wastewater entering subsequent links are stable and appropriate.

The utility model belongs to the technical field of centralized cooling of air conditioners, and provides a centralized cooling system which comprises a cooling water circulating pipeline, a chilled water circulating pipeline, a cooling tower set connected into the cooling water circulating pipeline, a cooling pump set, a chilled pump set connected into the chilled water circulating pipeline and a pressure difference adjusting pipeline. The refrigerating machine group is connected into the cooling water circulating pipeline and the chilled water circulating pipeline at the same time; two ends of the pressure difference adjusting pipeline are respectively communicated with the water inlet end and the water outlet end of the chilled water circulating pipeline; and the chilled water circulating pipeline is provided with a water quantity regulation and control assembly. The centralized cooling system provided by the utility model can monitor and adjust the circulating operation states of cooling water and chilled water in the circulating pipeline in real time in the cooling process so as to improve the cooling efficiency and the utilization rate of energy, so that the energy-saving effect is enhanced, and meanwhile, the pressure difference between the water supply and the water return can be effectively controlled, so that the cooling response of the system is rapid and efficient; and the stability and reliability of system cooling are improved.

The CVD equipment comprises a deposition chamber and further comprises a sulfur melting pool, an atomization device and a conveying device, the atomization device is connected with the deposition chamber and comprises a spraying part, the spraying part is provided with a first inner cavity, a second inner cavity and a crushing part which are isolated from one another, and the first inner cavity and the second inner cavity communicate with the crushing part; the sulfur melting tank is communicated with the first inner cavity through a conveying device and a third pipeline, the second inner cavity is communicated with the first pipeline, and the crushing part is communicated with the deposition chamber. The method has the beneficial effects that the quality of zinc sulfide products can be improved, and zinc sulfide is safely and efficiently prepared.

The invention provides an easy-to-adjust rapid cooling type superconducting magnet, and belongs to the technical field of superconducting magnets, the easy-to-adjust rapid cooling type superconducting magnet comprises a supporting seat and a cooling adjusting system, the two sides of the top of the supporting seat are fixedly connected with connecting seats, and the tops of the connecting seats are fixedly connected with superconducting magnet assemblies; the top of the superconducting magnet assembly is fixedly connected with a refrigerator assembly, one side of the top of the superconducting magnet assembly is fixedly connected with a main cooling unit, and the other side of the top of the superconducting magnet assembly is fixedly connected with a pre-cooling unit. The cooling adjusting system comprises a temperature monitoring module, a flow adjusting module, a pressure adjusting module and a central control unit. Compared with a traditional superconducting magnet, the cooling speed of the superconducting magnet can be remarkably increased, the problems of equipment idling, operation cost increase and the like caused by long cooling time are reduced, and meanwhile due to cooling efficiency and uniformity, the performance stability of the superconducting magnet can be improved, and the service life of the superconducting magnet can be prolonged.

The invention discloses a coal bucket of a power plant, and aims to solve the problems that a traditional coal bucket is easy to block coal, non-uniform in blanking, difficult to accurately control flow and the like. The coal bucket body is in an inverted rectangular pyramid shape, and an auxiliary coal falling plate is arranged on the inner wall, hinged to the inner wall through a shaft rod and connected with a linkage assembly. The linkage assembly comprises a main gear, an auxiliary gear and the like, and the auxiliary coal falling plate can vibrate regularly through a series of transmission. The bottom of the coal bucket is provided with a telescopic material port and a linkage telescopic assembly which can control the coal bucket to move up and down. The spiral conveying piece on the rotating shaft assists coal to flow to the material opening, and the motor drives the rotating shaft to rotate through the speed reducer to drive the whole linkage system to operate. The anti-blocking device can effectively prevent blocking, uniform discharging and accurate flow control are achieved, and the coal conveying efficiency and reliability of a power plant are improved.

The utility model relates to a V type ball valve structure for chemical waste gas treatment relates to valve technical field, including lower valve body, one side of lower valve body is provided with air inlet pipe, the other side of lower valve body is provided with air outlet pipe, the valve seat in lower valve body inside is installed with hemisphere, and the bottom of hemisphere is rotatably connected with the valve seat in lower valve body inside, the upper end of lower valve body is welded with upper valve body, the inside rotation of upper valve body is installed with valve rod, and the bottom of valve rod is fixed with hemisphere, the upper end fixed mounting of upper valve body has transmission seat, the inside rotation of transmission seat is installed with worm wheel, and the shaft of worm wheel bottom is connected with valve rod key, one side of worm wheel is installed with worm, and the rear end of worm is connected with transmission seat through bearing, and the scheme solves the problem that V type ball valve stability is poor and operating mechanism is easy to appear dislocation because of collision.

The utility model provides a kind of combustion-supporting oxygen-permeable assembly of flame spraying machine, including flame spraying machine body and the air inlet slot opening on the outside wall of flame spraying machine body, the inboard wall of air inlet slot is slidably connected with conical fixed cylinder, combustion-supporting oxygen-permeable mechanism is arranged in the conical fixed cylinder;The combustion-supporting oxygen-permeable mechanism includes rotating circular cavity opened in the conical fixed cylinder inside.The utility model, through the cooperation control hole and arc mouth in combustion-supporting oxygen-permeable mechanism double rotating disc, can accurately adjust the flow and mixing ratio of combustion-supporting gas and oxygen according to spraying demand, realize the flexible regulation of flame temperature and intensity, gear chain transmission system ensures that rotating disc is synchronously operated, avoids airflow control misalignment, independent gas source pipeline and detachable design, both facilitate multiple gas source access and proportional adjustment, and simplify maintenance process, effectively improve the efficiency and quality stability of flame spraying process.

The utility model relates to the technical field of cooling equipment, in particular to a cooler capable of controlling the temperature of extracted materials, which comprises a supporting seat, a first cooling cylinder, a second cooling cylinder and a third cooling cylinder are mounted at the top of the supporting seat, and one end of the first cooling cylinder is connected with a feeding pipe. The other end of the first cooling cylinder is connected with a second cooling cylinder through a first conveying pipe, the end of the first conveying pipe is connected with a third cooling cylinder through a second conveying pipe, the end of the third cooling cylinder is connected with a discharging pipe, and the outer wall of the first cooling cylinder is connected with the outer wall of the second cooling cylinder through a second water conveying pipe. The first cooling cylinder and the third cooling cylinder are connected through a first water conveying pipe, and the outer wall of the third cooling cylinder is connected with a cold water inlet pipe. According to the cooler capable of controlling the temperature of the extracted material, the design of the three cooling cylinders connected in series is adopted, so that the temperature of the material can be gradually and uniformly reduced in the flowing process, and the problem of non-uniform cooling or temperature fluctuation possibly occurring in traditional equipment is avoided.

The application provides an air conditioning system, comprising an outdoor unit, an indoor unit and a refrigerant cutoff device, the refrigerant cutoff device is connected with the outdoor unit through an outdoor unit side liquid pipe and an outdoor unit side gas pipe, and is connected with the indoor unit through an indoor unit side liquid pipe and an indoor unit side gas pipe, and the refrigerant cutoff device comprises first and second cutoff device throttling elements arranged on the liquid pipe side and the gas pipe side; a processing device is configured to: estimate a temperature change rate of an air conditioning room where the indoor unit is located, and an offset degree of a temperature of the air conditioning room from a target temperature; estimate a target refrigerant temperature matched with a current load of the air conditioning room based on the temperature change rate and the offset degree; and estimate the opening degrees of an indoor electronic expansion valve, the first cutoff device throttling element and the second cutoff device throttling element based on the target refrigerant temperature, a preset target superheat degree or a target subcooling degree. The application improves energy utilization efficiency, thereby comprehensively optimizing the performance, comfort and energy efficiency of the air conditioning system.

This utility model discloses a portable device for measuring the permeability parameters of a geomembrane. It includes a measuring tank with two symmetrically connected support pipes at the top. Each support pipe has a water tank fixedly connected to its top. The bottoms of both water tanks are connected to the measuring tank via inlet pipes. One side of the top of each water tank is connected via an inlet pipe, with an inlet located in the middle of the inlet pipe. A glue injection chamber is located on the outer side of the measuring tank. This utility model, through the connection between the evaporation measuring tank and the measuring tank, can simultaneously and accurately measure the evaporation of water during measurement, providing richer data dimensions for a comprehensive evaluation of the geomembrane performance. Furthermore, the glue injection chamber, measuring tank, and evaporation measuring tank are all made of transparent material and have graduations, allowing operators to clearly and intuitively observe the amount of sealant injected and the changes in water level within the measuring tank and evaporation measuring tank, quickly obtaining accurate data and providing a more scientific and accurate basis for a deeper and more comprehensive understanding of the geomembrane's permeability performance.

The invention relates to an ammonia gas oxygen-enriched high-pressure combustion experiment system, which comprises an oxygen supply system for supplying a specific amount of pure oxygen; the compressed air supply system is used for providing compressed air; the air electric heater is used for preheating the mixed compressed air and pure oxygen; the ammonia gas supply system is used for supplying a specific amount of ammonia gas and mixing the ammonia gas with the preheated compressed air and pure oxygen gas; and the combustion chamber is used for reacting and combusting the ammonia gas, the compressed air and the pure oxygen mixed gas, and the side wall of the combustion chamber is further connected with the other strand of compressed air in the compressed air supply system, so that cooling and heat exchange are achieved. The device is compact and reasonable in structure and convenient to operate, and stable combustion and efficient utilization of ammonia gas under high-pressure and oxygen-enriched conditions are achieved by accurately controlling gas flow and pressure and adopting measures such as an oxygen-enriched combustion technology and a secondary cooling air system.

The present application belongs to the technical field of hydraulic control, and discloses a large-diameter high-pressure ball valve hydraulic torque feedback adaptive control system; comprising: a multi-modal sensing module: used for collecting the torque of the high-pressure ball valve stem, the position of the valve stem, the oil pollution degree and the oil temperature, and performing corresponding filter replacement warning and temperature warning; an adaptive control module: used for denoising the torque and the position, calculating the torque error and the position error, optimizing the PID parameters of the PID control algorithm, realizing the composite closed-loop control of the torque and the position, and obtaining the control instruction; obtaining the compensated control instruction through dynamic friction compensation; a hydraulic power module: used for adjusting the pump displacement and the overflow valve opening degree according to the compensated control instruction, and outputting the oil to the actuator module; an actuator module: used for receiving the oil to drive the hydraulic motor to operate; the present application guarantees the accuracy and stability of torque control.