3118 results about "Circulating pump" patented technology

The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.

The invention discloses a high-reliability planetary gearbox signal denoising method, system, medium and equipment, and the method comprises the steps: obtaining original vibration signals of a nuclear power circulating pump planetary gearbox in different health states, and carrying out the detrending and demean preprocessing of the signals; performing modal decomposition on the original vibration signal by adopting an empirical mode decomposition (EMD) algorithm, an ensemble empirical mode decomposition (EEMD) algorithm and a variational mode decomposition (VMD) algorithm to obtain a plurality of different modal components; iteratively optimizing a hyper-parameter value in the variational mode decomposition algorithm VMD by adopting a sparrow search algorithm SSA so as to realize the self-adaptive decomposition of the variational mode decomposition algorithm VMD on the signal; and carrying out modal decomposition on the gearbox vibration signal by adopting a variational modal decomposition algorithm VMD after iterative optimization, removing noise components in modal components, and reconstructing the signal to realize gearbox vibration signal denoising.

The embodiment of the invention provides a heat conduction oil heating temperature control system and method. The system comprises a first detection module, a temperature control module, a circulating pump, a waste heat recovery module, a plurality of segmented heat conduction oil pipelines, heating modules corresponding to the heat conduction oil pipelines and a second detection module. The first detection module sends the environment temperature to the temperature control module; the temperature control module calculates the initial heating power corresponding to each heat-conducting oil pipeline, contains the initial heating power in a heating instruction and sends the heating instruction to the corresponding heating module; the circulating pump drives the heat-conducting oil to each heat-conducting oil pipeline; the heating module heats the heat utilization equipment according to the initial heating power; the second detection module sends the heating temperature of the conduction oil pipeline corresponding to the current time period to the temperature control module; the waste heat recovery module calculates the waste heat utilization rate and sends to the temperature control module; and the temperature control module calculates to-be-adjusted heating power required by the next time period, contains the to-be-adjusted heating power in a heating instruction and sends the heating instruction to the corresponding heating module for subsequent heating temperature control, so that the heating temperature control precision of the heat-conducting oil is improved, and the energy consumption is reduced.

The utility model discloses reaction equipment with high crude methyl ester yield, which comprises a stirring kettle and a material circulating system, the material circulating system comprises a circulating pump, a spray pipe arranged in the stirring kettle and a mixing nozzle arranged on the spray pipe, and a bottom outlet of the stirring kettle is connected with a feed port of the circulating pump through a first pipeline. An outlet of the circulating pump is connected with the spray pipe through a second pipeline; the mixing nozzle comprises a first sprayer and a second sprayer, and an outer flaring in the lower portion of the second sprayer is in clearance fit with the conical head through a connecting piece. The material circulating system can realize bottom-out and top-in of materials, so that the mixing of an oil phase and an enzyme water phase is promoted through the reciprocating circulation. In addition, the material circulating system is provided with a plurality of mixing nozzles, the flow speed of spraying of the first spray head is large, so that a negative pressure suction gap is formed at the joint of the second spray head and the first spray head, materials in the stirring kettle can enter the mixing nozzles under the action of negative pressure, an oil phase and an enzyme water phase are intensively mixed, and the yield of fatty acid methyl ester is improved.

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.

The invention discloses a boiler flue gas desulfurization and denitrification device, and relates to the technical field of boiler flue gas treatment.The boiler flue gas desulfurization and denitrification device comprises a tower body, a filler layer is fixedly installed at the top of the tower body, a tower top is fixedly installed at the top of the filler layer, a water tank is fixedly installed on the outer side of the tower body, and a circulating pump is arranged on the water tank; a spraying device is arranged on the water tank, the output end of the circulating pump is connected with the spraying device through a pipeline, a plurality of water spraying openings are formed in the tower top, and the water spraying openings are all communicated with the output end of the spraying device; wherein a stirring device for stirring the filler is arranged on the filler layer, and the flue gas is quickly dispersed, so that the primary desulfurization and denitrification effect is improved, activated carbon particles are continuously stirred, the particles are prevented from caking, full contact between the particles and the flue gas is guaranteed, the reaction time is prolonged, and the desulfurization and denitrification efficiency is improved.

The invention provides a waste steam source high-temperature steam heat pump testing system based on heat energy cyclic utilization, and belongs to the field of compression heat pumps. The invention aims to solve the problems of unstable heat supply in a high-temperature lift, low energy efficiency of an evaporation end, poor temperature control effect of a low-level heat source side and limited thermal control means of an experimental platform. The system comprises a condenser, an expansion valve, a liquid storage tank, an evaporator, a compressor, a water spraying cooling tank, a steam pressure reducing valve, a circulating pump and a regulating valve, or a water mixing cooling tank and a heat supply liquid storage tank are additionally arranged, so that the dynamic balance and control of the temperature of the hot end of the system are realized; or a steam pressure reducing valve is replaced by a steam-water heat exchanger, so that heat exchange is carried out on condensed steam and working medium water to realize mild cooling, and redundant energy consumption is avoided; or a bypass adjustable shunting loop is arranged, so that partial high-temperature backwater bypass mixing is realized, and the thermal matching property and the operation stability of the system are enhanced. According to the invention, the output temperature of over 100 DEG C is realized, and the universality and debugging flexibility of experimental system design are realized.

The invention relates to the technical field of aircrafts, in particular to a turbine engine pre-cooling system and an aircraft. The turbine engine precooling system comprises a propulsion channel, a precooler, an air turbine, a radiator, a circulating pump and an engine. The precooler is located on the side, close to the air inlet, of the engine. The precooler is provided with a first heat exchange medium channel and an air channel; the radiator is arranged on the outer side of the propelling channel and provided with a second heat exchange medium channel and a fuel channel, and the second heat exchange medium channel communicates with the first heat exchange medium channel; the air turbine is arranged in a hollow channel in the center of the precooler, and the air inlet direction of the air turbine is parallel to the extending direction of the air channel. The circulating pump is arranged on the radiator and connected with the air turbine so as to drive the heat exchange medium to circularly flow between the first heat exchange medium channel and the second heat exchange medium channel; and a valve is arranged at an exhaust port of the air turbine, so that the heat exchange efficiency and the working condition adaptability are improved.

The invention relates to the technical field of automobile brake fluid production, and discloses an automobile brake fluid production stirring device which comprises a vibration crushing mechanism, a circulation backflow mechanism is arranged on the surface of the vibration crushing mechanism, and a stirring storage mechanism is arranged on the surface of the circulation backflow mechanism. A vibration driving mechanism is arranged at the top of the stirring and storing mechanism, and a stirring and mixing mechanism is arranged between the vibration driving mechanism and the stirring and storing mechanism. According to the stirring device for producing the automobile brake fluid, through the arrangement of the vibration crushing mechanism, the circulating reflux mechanism, the stirring storage mechanism, the vibration driving mechanism and the stirring mixing mechanism, materials below can be continuously and circularly pumped upwards through the circulating reflux mechanism during use, and continuous vibration is generated through the vibration crushing mechanism; and the clotted raw materials are crushed and mixed through vibration of the vibration crushing mechanism, so that the material mixing uniformity is improved.

The utility model discloses an ultrasonic cleaning machine which comprises an ultrasonic cleaning tank, a filtering water tank, a circulating pump, two height adjusting supports, two ultrasonic transducers, a bearing support mechanism and a suspended supporting unit. According to the ultrasonic cleaning machine, batch lifting of the spinneret plates can be achieved through the bearing support mechanism, and therefore the feeding and discharging efficiency of the spinneret plates is effectively improved; the two ultrasonic transducers and the two arc-shaped diffusion plates are oppositely arranged, wrapping type ultrasonic cleaning from the two sides can be conducted on the spinneret plates located in the middle, and the ultrasonic cleaning effect is effectively enhanced; the insertion depth of the ultrasonic transducer can be adjusted through the height adjusting support, and therefore the requirement for concentrated cleaning of spinneret plates with different placement heights is met.

The utility model relates to a tail gas self-circulation white feather eliminating device, which solves the problems of poor white feather eliminating effect and high cost of the existing industrial tail gas. Comprising a quench tower, an absorption tower, a gas-gas heat exchanger, an electric precipitator and a tail gas suction fan, during use, dry high-temperature tail gas enters a heat exchange pipe in the gas-gas heat exchanger for indirect heat exchange, and the tail gas subjected to heat exchange enters the quench tower and is in countercurrent contact with quench water from the quench tower; the washed and condensed tail gas is discharged to the lower part of the absorption tower from the top of the quench tower under the action of the circulating fan, and the dried tail gas enters the electrostatic dust collector to be purified after being absorbed and filtered by the absorption filtering device from the absorption circulating pump, and then enters the shell of the gas-gas heat exchanger to be subjected to indirect heat exchange; the purified tail gas is heated by the unpurified tail gas and then is discharged into the environment, namely the tail gas is heated to an unsaturated state by the heat of the tail gas, so that the aim of eliminating white feather of the tail gas is fulfilled, and the production cost is low.

The invention relates to a variable load leakage and deformation controllable mechanical sealing device, and belongs to the technical field of mechanical sealing.The variable load leakage and deformation controllable mechanical sealing device comprises a shaft sleeve, a shell, a first mechanical sealing mechanism and a second mechanical sealing mechanism, and the shell is provided with a lubricating liquid inlet and a lubricating liquid outlet; the first mechanical sealing mechanism is arranged between the shaft sleeve and the shell, the second mechanical sealing mechanism is arranged between the shaft sleeve and the shell, a liquid cavity is defined by the first mechanical sealing mechanism, the shaft sleeve, the shell and the second mechanical sealing mechanism, and the lubricating liquid inlet and the lubricating liquid outlet are both communicated with the liquid cavity. The pressure of lubricating liquid entering from the lubricating liquid inlet is dynamically changed, the pressure of the lubricating liquid is always larger than the pressure of a medium in the circulating pump, and the pressure difference is within a preset range. The mechanical seal has the advantages that the use effect of the mechanical seal is effectively guaranteed under the condition that the medium pressure in the circulating pump changes, and the mechanical seal can be suitable for the high-pressure variable-load working condition.

The utility model relates to a device for producing hydrogen by electrolyzing water, in particular to a device for producing hydrogen by electrolyzing water through iron-based circulation assistance. The utility model aims to solve the problems of large electrolytic solution resistance, high equipment complexity and pipeline blockage in the existing water electrolysis technology. The utility model discloses a device for iron-based circulation assisted water electrolysis hydrogen production. The device comprises an electrolyte tank, an ion exchanger, a circulating pump, a transformer, a rectifier, an electrolytic bath, a first compressor, a second compressor, a high-pressure storage tank, a gas storage tank, a plurality of dryers, a cathode, an anode and a proton exchange membrane. According to the utility model, the design of the carbon powder dispensing electrode is adopted to replace the suspension state of coal slurry, and meanwhile, the one-step electrolysis design and the efficient circulation auxiliary module are combined, so that the solution resistance and the equipment complexity are obviously reduced, and the problem of pipeline blockage is solved; the iron-based circulating auxiliary water electrolysis hydrogen production device is efficient, low in power consumption, stable and reliable, and is suitable for large-scale industrial popularization.

The invention discloses a high-temperature liquid metal circulating pump welding tool, which belongs to the technical field of welding and comprises a fixing frame, a first annular groove is formed in one end of the fixing frame, a first annular block is slidably mounted in the first annular groove, and an electric push rod is fixedly mounted on the first annular block. A welding head is fixedly installed at the end, close to the center part of the first annular block, of the electric push rod, an adjusting assembly is further arranged at the end, close to the welding head, of the first annular block, and a detection assembly used for judging the thickness of a welding material is installed in the shrinkage groove. Therefore, the welding duration is reasonably controlled, insufficient firmness of a welding point caused by too long or insufficient welding time is avoided, and the danger of the high-temperature liquid circulating pump in the using process of a liquid metal coolant with the physical characteristics of high temperature, high flow speed, high density, strong corrosivity and the like is reduced.

The invention relates to the technical field of design of an air suction prevention scheme for a hydraulic rocker gear oil cooling circulating pump of a coal mining machine, in particular to an air suction prevention method for the hydraulic rocker gear oil cooling circulating pump of the coal mining machine and the coal mining machine. Aiming at the problem of air suction damage of a circulating pump caused by change of the inclination angle of the rocker arm, oil suction ports are formed in the lowest liquid level positions of the positive and negative inclination angles of the rocker arm respectively, the inclination angles are monitored in real time through an angle sensor, and an electric control box controls an electric proportional reversing valve to act according to inclination angle signals and drives a hydraulic control reversing valve to be switched to a corresponding working position. And the gear oil circulating pump is always communicated with the current lowest liquid level oil suction port. According to the scheme, the pumping air corrosion risk is thoroughly eliminated, the service life of the pump body and the gear set is prolonged, and meanwhile system energy consumption is reduced. According to the preferable scheme, the filter and the cooler are integrated to form a closed-loop purification cooling loop, and the cleanliness and the thermal stability of the oil are further guaranteed. According to the invention, the adaptability defect of the fixed oil suction port under the dynamic dip angle working condition is overcome, and reliable guarantee is provided for high-load continuous operation of the coal mining machine.

The invention relates to an aero-engine, a thermal management method, a thermal management system and a computer readable medium. The thermal management method comprises the steps that it is judged that the aero-engine is in a first working condition, a second working condition, a third working condition or a fourth working condition; if in the first working condition, the three-way valve adjusts fuel oil to only enter the combustion chamber, the air-liquid heat exchanger and the air-fuel heat exchanger do not work, and the hybrid liquid cooling circulation system passes through the battery, the controller, the motor and the synovial fluid heat exchanger, then is cooled through the fuel liquid heat exchanger and then returns to the circulating pump; if in the second working condition, the fuel liquid heat exchanger, the air-liquid heat exchanger and the air-fuel heat exchanger all work; if in a third working condition, the fuel liquid heat exchanger and the air-fuel heat exchanger do not work; and if in a fourth working condition, the hybrid liquid cooling circulation system can realize internal heat balance, the hybrid cooling liquid directly returns to the circulation pump after absorbing heat through the controller, the motor and the synovial fluid heat exchanger, and then the battery is heated, so that the whole circulation is completed.

The utility model relates to the technical field of oil cooling motor structures capable of rapidly reducing oil temperature, and discloses an oil cooling motor structure capable of rapidly reducing oil temperature, which comprises a bottom plate and a motor main body, a rapid oil temperature reducing assembly is arranged at the top of the bottom plate, and the rapid oil temperature reducing assembly comprises an oil pump, a circulating pump, a fan frame and radiating fins. The oil pump is connected with an oil tank through an input pipe, the oil pump is connected with a cooling oil disc through an output pipe, and through the arrangement of the rapid oil temperature reducing assembly, a worker starts the oil pump, pumps cooling oil from the oil tank and injects the cooling oil into the cooling oil disc, the cooling oil disc is attached to the outer wall of the motor body, operation heat is absorbed, the motor is prevented from being overheated, and stable operation is guaranteed; the circulating pump pumps out hot oil from the cooling oil tray and feeds the hot oil into the heat dissipation pipe, the heat dissipation fins on the heat dissipation pipe increase the heat dissipation area and cooperate with the fan in the fan frame to accelerate heat dissipation, the cooled oil returns to the oil tank through the return pipe, efficient circulation of the cooling oil is achieved, and the motor is continuously cooled.

The invention provides a new energy automobile driving motor stator oil cooling structure, and relates to the technical field of new energy automobile driving motors. An oil cooling heat dissipation part is mounted at the front end of the outer part of the connecting mounting part; a driving control part is mounted at the top of the connecting mounting part and is used for rotating the oil cooling heat dissipation part; a movable positioning part is mounted on the connecting and mounting part and is used for positioning the connecting and mounting part; two groups of anti-loose limiting parts are mounted on the connecting and mounting part and are used for ensuring the stability of the connecting and mounting part during use; when the circulating pump works, cooling oil between the two corresponding rectangular separation strips can be completely discharged basically, and it is guaranteed that the cooling oil in the motor shell can be fully circulated; the problem that the suction position of cooling oil cannot be accurately controlled during cooling oil circulation due to the lack of a cooling oil separation structure generally is solved.

The invention discloses a vibration plate type anti-scaling MVR evaporator, and relates to the technical field of MVR evaporators. Comprising a compressor, a heater, a separator, a circulating pump and a heat exchanger which are connected with one another, the side end face of the heat exchanger fixedly communicates with a cold side inlet pipe and a hot side inlet pipe, the cold side inlet pipe is located on one side of the hot side inlet pipe, and an L-shaped fixed plate is fixedly installed on the side end face of the heat exchanger and located on the outer side of the cold side inlet pipe; an intercepting assembly is arranged on the L-shaped fixed plate; a mounting fixed plate and a stabilizing transverse plate are fixedly mounted on the heat exchanger, an auxiliary assembly is arranged on the mounting fixed plate and the stabilizing transverse plate, and a vibration transmission plate is arranged on the auxiliary assembly. Through cooperative use of the interception assembly and the auxiliary assembly, the anti-scaling capacity of the MVR evaporator is effectively improved, the heat exchange efficiency is improved, the service life of equipment is prolonged, energy consumption is reduced, and the use effect of the MVR evaporator is greatly improved.

The invention discloses an easy-to-clean electric catching oil remover, and particularly relates to the technical field of rubber additive product industrial waste gas treatment, the easy-to-clean electric catching oil remover comprises an electric catching oil remover support, a cleaning water tank support, a low-pressure nitrogen end, an oil-containing waste gas end, a low-pressure steam end, a water source end, a waste water end and a purified waste gas treatment device; in the cleaning stage, steam is introduced into the low-pressure steam end to heat water in the cleaning water tank main body, and meanwhile, the water source end conveys a water source to form cleaning liquid; cleaning liquid uniformly washes accumulated oil on the surface of a honeycomb electrode tube through a washing spraying opening which is made of a stainless steel material and has a nozzle aperture of 1mm and a spraying angle of 120 degrees downwards in a rotary spraying manner, and the uniform and powerful spraying manner can thoroughly remove oil stains on the surface of an electrode, so that electrode blockage caused by oil stain residues is avoided, and the service life of the electrode tube is prolonged. And the whole cleaning process does not need to be stopped, so that the accumulated oil of the honeycomb electrode can be cleaned on line without stopping, the continuous and efficient operation of the electric capturing oil remover is ensured, and the production efficiency is improved.

The invention discloses a data center negative pressure two-phase liquid cooling distribution method and device, and relates to the technical field of data center liquid cooling. A server cold plate, an outdoor closed cooling tower and a data center two-phase cooling distribution unit CDU are connected through a closed circulating pipeline, so that a liquid cooling working medium is conveyed to the server cold plate through a liquid separator at an outlet of the CDU, absorbs heat of a server in a cold plate flow channel and is completely gasified, and the gasified cooling working medium is driven by a circulating pump through a heat insulation pneumatic pipeline to be conveyed to the server cold plate. A gaseous cooling working medium enters a primary side composite gas phase pipeline and is directly conveyed to a condensation section of a primary side outdoor closed type cooling tower, the condensation section adopts a finned tube bundle structure, the gaseous cooling working medium exchanges heat with air / spray water in the condensation section and is liquefied, and the liquefied cooling working medium enters a negative pressure heat exchanger unit in the CDU under the assistance of a circulating pump or gravity; a low-temperature gaseous cooling working medium after heat exchange enters a composite gas phase pipeline on the primary side under the action of a sucking pump and is mixed with a high-temperature gaseous cooling working medium coming out of a server cold plate, and then the precooled working medium forms a liquid working medium in a supercooled state through a throttling valve and is injected into a liquid pool at the bottom of a liquid storage tank; and redistributing to each server cold plate to finish cooling circulation.

The invention relates to the technical field of motors, and discloses a multi-layer winding structure of a high-power-density flat wire oil-cooled motor, which comprises a rotating shaft, a rotor core, a stator core, a winding component and a motor shell which are concentrically sleeved from inside to outside, and is characterized in that the winding component comprises a plurality of winding bodies which are arrayed and nested in the stator core; the front and rear ends of the winding component are respectively provided with a welding end winding and a hairpin end winding. According to the multi-layer winding structure of the high-power-density flat wire oil-cooled motor, a multifunctional winding cooling structure is formed by the first cross flow groove, the second cross flow groove, the two cooling flow guide assemblies and the plurality of annular cooling grooves; after being combined with a flat wire oil cooling motor formed by a rotating shaft, a rotor iron core, a stator iron core, a winding part and a motor shell and a circulating pump transmission module for use, cooling oil can be guided and conveyed to cover most structures of the winding part in a plurality of annular cooling grooves; and the two cooling diversion assemblies comprehensively spray and cool the structures at the two ends of the winding component in a rotary output mode.

The utility model relates to an electromagnetic heating waste oil deslagging system, and belongs to the field of waste oil regeneration, the electromagnetic heating waste oil deslagging system comprises a reaction kettle, a circulating pump, an electric heater, an electric heating groove, a slag oil tank, a regulating valve, a switch valve and an extraction piece, the circulating pump is communicated with the reaction kettle, and the electric heater is communicated with the circulating pump and is communicated with the reaction kettle; the electric heating tank is arranged on the circulating pump in a communicating mode, the residue oil tank is arranged on the electric heating tank in a communicating mode, the adjusting valve is arranged at the communicating position of the circulating pump and the electric heating tank, the switch valve is arranged at the communicating position of the electric heating tank and the residue oil tank, and the extraction part is arranged on the residue oil tank and used for discharging residue oil in the electric heating tank into the residue oil tank. The waste oil regeneration device has the advantages that the probability of coking and blocking of waste oil is reduced, time consumed for equipment maintenance is shortened, the heating temperature of the waste oil is reasonably distributed through the electric heater and the electric heating groove, the heating efficiency is improved, energy consumption is reduced, and the problems of low production efficiency and high recovery cost in the waste oil regeneration process are effectively solved.

The utility model belongs to the technical field of full-automatic biochemical analyzers, and particularly relates to a liquid path system of a full-automatic biochemical analyzer, which comprises a water inlet pipeline, the water inlet pipeline is connected with a first way of a water inlet and outlet six-way assembly, and a second way of the water inlet and outlet six-way assembly is connected with a circulating pump through a horizontal pipeline and a switching pipeline. The circulating pump is connected with the constant-temperature heating assembly through a connecting pipeline, the constant-temperature heating assembly is connected with a water inlet of the constant-temperature bath through a heating pipeline, a water outlet of the constant-temperature bath is connected with a tee joint of the water inlet and outlet six-way assembly through a water outlet pipeline, and a four-way joint of the water inlet and outlet six-way assembly is connected with the water outlet pipeline. The water drainage pipeline is provided with an electromagnetic valve, the water drainage pipeline is located above the water inlet and outlet six-way assembly, the horizontal pipeline and the water inlet and outlet six-way assembly are located on the same horizontal line, bubbles can move upwards to enter the water drainage pipeline, so that the bubbles cannot enter the horizontal pipeline, and water circulation of the thermostatic bath cannot be influenced.

The invention relates to the technical field of high-efficiency recovery of low-temperature exhaust gas, in particular to a high-temperature cooking waste heat recovery system for white spirit brewing. The white spirit brewing high-temperature cooking waste heat recovery system comprises a cooking barrel, a compressor, an embedded plate heat exchanger, a condensate water tank and a circulating pump, a liquid inlet of the cooking barrel is communicated with one end of a water supplementing pipe, an air inlet of the compressor is communicated with a waste gas outlet of the cooking barrel, and the compressor is used for compressing steam to obtain high-temperature and high-pressure steam. A steam inlet of the embedded plate heat exchanger is communicated with an air outlet of the compressor, and a steam outlet of the embedded plate heat exchanger is communicated with a steam inlet of the cooking barrel through a steam conveying pipe. By adopting the arrangement mode, waste heat steam is utilized twice to recover heat, high-efficiency energy utilization can be realized, energy consumption and carbon emission are reduced, and meanwhile, the cooking efficiency and the grain quality are improved.

A gas-fired heat pump unit that directly utilizes engine waste heat and features adjustable air supply is disclosed. The condenser and water supply and return lines are combined with refrigerant and coolant heat exchange lines. Refrigerant flows from the quasi-two-stage compressor outlet through the refrigerant heat exchange line, dividing it into a main path and an auxiliary path. The auxiliary path connects to the quasi-two-stage compressor air supply port after passing through a first electronic expansion valve and a flue gas heat exchanger. The main path, switched by a four-way reversing valve, can control forward and reverse circulation between the second electronic expansion valve and the outdoor evaporator. The outlet is connected to the quasi-two-stage compressor inlet. Coolant flows from the gas engine outlet through a coolant circulation pump and the coolant heat exchange line back to the inlet. The gas engine exhaust port is connected to the flue gas heat exchanger. Compressor air supply is simple and highly adjustable. The condenser utilizes stepped heating to decouple engine waste heat from compressor power. Heating is continuous during reverse cycle defrosting, improving indoor thermal comfort.

A cooling system for an electric traction machine includes a looped conduit system for conducting a first cooling liquid and a circulation pump for conveying the first cooling liquid in a first circulation direction. The cooling system includes an expansion tank filled at least partially with the first cooling liquid and a gas, and a motor input terminal for fluidically connecting the looped conduit system on an input side to the electric traction machine. The cooling system includes a motor output terminal for fluidically connecting the looped conduit system on an output side to the electric traction machine and a first heat exchanger for dissipating heat from and / or supplying heat to the first cooling liquid. In the first circulation direction, the first heat exchanger is arranged downstream of the electric traction machine and connected via the motor input and output terminal and upstream of the expansion tank.

The invention relates to the technical field of ultra-high-speed motor design, fluid mechanical engineering and electromagnetic-structure coupling, in particular to an innovative structure-electromagnetic coupling design of a centrifugal hydrogen circulating pump driven by an ultra-high-speed permanent magnet motor. The integrated coupling rotor system is formed by rigidly connecting a permanent magnet motor rotor and a centrifugal impeller through conical surface interference and key groove positioning, a rotor iron core is formed by laminating 0.2 mm ultrathin silicon steel sheets (35W250), and impeller blade molded lines are optimized based on electromagnetic force harmonic characteristics (the number of blades is equal to the number of motor poles + / -1); the coupling matching degree is remarkably improved: through structure-electromagnetic parameter collaborative optimization, the comprehensive efficiency of the system reaches 85% or above, and is improved by 12%-15% compared with that of a separation design; an anti-resonance damping module is combined with a frequency avoidance design, and the vibration acceleration in an ultra-high-speed interval is smaller than or equal to 8 g and is reduced by 60% or above compared with a traditional design; the torque-load matching time is less than or equal to 0.3 s when the flow is suddenly changed, overcurrent impact or surge is avoided, and the dynamic requirement of a fuel cell system is met.

A reverse osmosis system includes a pressure vessel comprising first and second ports. Membranes disposed in the pressure vessel, permeate water and block permeation of dissolved solids from concentrate flowing between the first and second ports. A high pressure pump includes an inlet and an outlet. A circulation pump includes an inlet and an outlet and is configured to circulate the concentrate between the first and second ports. A valved circulation apparatus is configured to select between a forward flow mode and a discharge mode of the system. In the forward flow mode, the circulation pump inlet is connected to the second port and the circulation pump outlet is connected to the first port. In the discharge mode, the circulation pump inlet is connected to the high pressure pump inlet and the circulation pump outlet is connected to the first port and production of permeate is prevented.

The utility model relates to the technical field of waste gas treatment equipment, and discloses waste gas treatment equipment for chemical production, which comprises a spray tower body, a circulating water tank fixedly mounted on the outer side of the spray tower body, a circulating pump fixedly mounted at the top of the circulating water tank, and a gas inlet fixedly mounted on the spray tower body on one side of the circulating water tank, a plurality of access holes are fixedly formed in the spray tower body above the air inlet, a plurality of spray pipes are fixedly mounted in the spray tower body, and one end of each spray pipe is fixedly connected with the output end of the circulating pump through a pipeline. The two guide rails are arranged on the inner side of the material disc, the material pushing plate is further arranged in the material disc, the material pushing plate is slidably installed on the two guide rails in the material disc through the connecting shafts on the two sides, meanwhile, the sliding blocks, the guide rods and the compression springs are matched, filler in the material disc can be rapidly scraped to the access hole and taken out, the filler taking-out efficiency is improved, and meanwhile the material pushing plate is convenient to use. And a certain amount of filler is prevented from remaining in the charging tray.