41 results about "Absorption compression" patented technology

This invention discloses a compressed air energy storage system and its operation method, belonging to the field of physical energy storage technology. It includes a compressed air energy storage module, a transcritical carbon dioxide heat pump module, an electric heating module, and a heat storage module. The compressed air energy storage module includes an air compressor unit. The heat absorption side of the transcritical carbon dioxide heat pump module is coupled to the interstage cooling circuit of the air compressor unit to absorb compression heat and cool the interstage air. The heat release side is coupled to a first heat storage unit to upgrade the compression heat into high-grade heat storage. The high-pressure stage compression circuit is coupled to a second heat storage unit to transfer the high-pressure stage compression heat. The electric heating module uses electrical energy components unsuitable for driving the compressor to supplement and raise the temperature of the heat storage medium in the second heat storage unit, forming a secondary high-grade heat storage. During energy release, the high-pressure air is first preheated using the secondary high-grade heat and then reheated between stages using the high-grade heat. This invention achieves a comprehensive performance improvement by reducing compression power consumption, increasing work capacity, and completely absorbing fluctuating electrical energy.

The application provides a compressed air energy storage power generation system based on cascade utilization of photothermal heat compensation and flash evaporation, and relates to the technical field of energy storage power generation. Air is compressed by a multistage compressor through an air compression heat exchange unit, high-pressure air is obtained, heat generated by compressed air is absorbed by low-temperature water, high-temperature water is obtained, an expansion power generation system is used, a multistage expander is used, high-temperature heat conducting oil obtained by the high-temperature water and a photothermal heat collection unit is used to heat input high-pressure gas of each stage of the expander in sequence, power generation is performed, electric energy, exhaust gas of the last stage of the expander, medium-temperature water and low-temperature heat conducting oil are obtained, high-grade energy utilization is realized, heat of the medium-temperature water is converted into electric energy by a flash evaporation power generation system, medium-grade energy utilization is realized, low-grade energy utilization is realized through preheating, the problem that the existing compressed air energy storage power generation system cannot realize cascade utilization of high, medium and low-grade energy is solved, and the application is suitable for energy storage power generation.

The invention discloses a liquid piston and water foam compounded multi-stage isothermal compression device and method, the device mainly comprises a low-pressure compression cavity and a high-pressure compression cavity, the liquid piston is utilized to realize preliminary compression of gas, and the water foam is introduced in the multi-stage compression process to enhance heat exchange. Gas compressed by the low-pressure compression cavity is introduced into a liquid working medium at the bottom of the high-pressure compression cavity, water foam is spontaneously generated, compression heat is efficiently absorbed through the large specific surface area of the foam, and the nearly isothermal compression process is achieved. According to the device, single-stage power loss is reduced through multi-stage compression, the throttling valve is used for regulating and controlling the gas inlet rate so as to control foam generation, a liquid working medium is recycled through the gas-liquid separation mechanism, and therefore the system energy efficiency and the output gas purity are improved. Different from an existing mode of generating foam by depending on an additional power mechanism, the device can form foam by directly blowing the low-pressure compressed gas into the liquid without additional energy consumption, so that the efficiency and the economical efficiency of the compressed air energy storage system can be remarkably improved.

The present invention relates to an A-CAES system comprising: a compressed-air storage device for storing air; a low-pressure compressor unit for compressing supplied air to a first air pressure and a first air temperature; a high-temperature heat exchanger system containing a high-temperature heat storage medium for cooling the air compressed in the low-pressure compressor unit, this cooling being brought about by the heat storage medium taking up heat of compression of the air, wherein the high-temperature heat storage medium is heated to a first heat-store temperature with a first heat-store pressure by the taking-up of the heat of compression; a medium- or high-pressure compressor unit for compressing the air downstream of the high-temperature heat exchanger system in further compression stages to a store-air pressure; a low-temperature heat exchanger system containing a low-temperature heat storage medium for cooling the air from the medium- or high-pressure compressor unit to a store-air temperature by taking up heat of compression of the air compressed in the medium- or high-pressure compressor unit, wherein the low-temperature heat storage medium is heated to a second heat-store temperature with a second heat-store pressure by the taking-up of the heat of compression of the air; and an air pipeline system, which connects the following in the flow direction: the low-pressure compressor unit to the high-temperature heat exchanger system, the high-temperature heat exchanger system to the medium- or high-pressure compressor unit, the medium- or high-pressure compressor unit to the low-temperature heat exchanger system and the low-temperature heat exchanger system to the compressed-air storage device, in order to supply and store the air in the compressed-air storage device with the store-air pressure and the store-air temperature.

The invention discloses a fuel cell-turbine engine hybrid power system utilizing liquid ammonia intercooling regenerative heat, and relates to the technical field of aero-engines, the fuel cell-turbine engine hybrid power system comprises an air inlet channel, an air compressor set, a combustion chamber, a turbine set, an exhaust nozzle, a solid oxide fuel cell, an energy management module, a liquid ammonia supply loop and an electric drive loop; liquid ammonia absorbs heat of compressed air in the intercooler and then is vaporized, then absorbs heat of turbine exhaust in the ammonia decomposition hydrogen production chemical regenerator and is decomposed into hydrogen-rich gas, and the hydrogen-rich gas is conveyed to an anode of a fuel cell; electric energy of the fuel cell is transmitted to the motor through the energy management module to drive the gas compressor, and mechanical decoupling of the gas compressor and the turbine is achieved. The turbine set drives the generator to generate electric energy for the propeller. Through physical and chemical heat sinks of liquid ammonia, the efficient power generation characteristic of the fuel cell and the high power density advantage of the turbine engine, efficient gradient utilization of energy and comprehensive improvement of the energy efficiency and the carbon reduction effect of an aviation power system are achieved.

The invention relates to the technical field of compressor protection, and discloses an automobile air conditioner compressor protection device which comprises a protection shell, a plurality of fixed arcs are fixedly connected to the inner wall of the protection shell, a water conveying cavity is formed in each fixed arc, and two sealing blocks are slidably connected to the interior of each water conveying cavity. And one sides of the two sealing blocks fixedly communicate with connecting pipes, a stainless steel hose fixedly communicates between the two connecting pipes, and a telescopic arc is fixedly connected between the two sealing blocks. Through cooperative use of the fixed circular arc, the telescopic circular arc, the sealing block, the connecting pipe, the stainless steel hose and other structures, cooling liquid is injected into the sealing water conveying cavity surrounding the body and circulates, the working heat of the compressor is directly and efficiently absorbed and discharged through the water outlet pipe, and the situation that in the high-temperature environment of an engine compartment, traditional air cooling is not affected is avoided. And the heat dissipation efficiency is low due to high air inlet temperature and small temperature difference.

The utility model discloses a Roots screw composite compressor, and belongs to the field of compressors. The compressor mainly comprises a compressor assembly, the compressor assembly is sleeved with a protection assembly, the compressor assembly comprises a machine body, an air inlet pipe is fixedly installed on the machine body, air outlet pipes are fixedly installed at the two ends of the machine body, a cavity is formed in the machine body, and two sets of rotors close to each other are installed in an inner bearing of the machine body; the protective assembly comprises a protective cover, the protective cover can be matched with the outer side of the compressor body in shape and structure, according to the Roots screw composite compressor, the protective assembly is arranged, and the protective cover has an elastic effect, so that the impact force of the outside on the compressor assembly can be effectively buffered, and damage to parts such as the compressor body caused by accidental collision is reduced; and meanwhile, vibration generated by operation of the compressor assembly can be absorbed, fatigue damage of vibration to all parts such as a rotor is reduced, and the service life of equipment is prolonged.

The utility model discloses a device for preparing high-purity oxygen based on a coupling separation technology, which comprises at least one compression device, a set of control assembly, at least one set of drying device and at least one set of separation device, the compression device, the drying device and the separation device are sequentially connected, the drying device and the separation device are connected with a plurality of valves, and the valves are connected with the control assembly. The control assembly controls opening and closing of the valve, and a dynamic buffer tank capable of absorbing air generated by the compression equipment is connected between the compression equipment and the drying device. The utility model has the following advantages and effects: unqualified gas can be recovered to reduce energy loss, and the oxygen production effect is better.

This invention discloses a multi-stage subcooled ammonia absorption-compression composite refrigeration system and method driven by compressor exhaust waste heat. The system includes an absorber, a preheater, a first-stage precooler, a generator, a distillation unit, and a second-stage precooler. Ammonia heat exchange occurs in the preheater's inlet and return liquid paths; ammonia and liquid ammonia exchange in the first-stage precooler; and ammonia and a mixed gas exchange in the generator. The absorber outlet is sequentially connected to the preheater inlet, the first-stage precooler ammonia path, the generator ammonia path, the preheater return liquid path, and the absorber inlet. The generator outlet is sequentially connected to the compressor, the generator mixed gas path, and the mixed gas inlet. The liquid ammonia outlet is sequentially connected to the first-stage precooler liquid ammonia path, the second-stage precooler inlet, the evaporator, the second-stage precooler return liquid path, and the absorber inlet. This solution uses high-temperature exhaust waste heat and external waste heat as the driving force for refrigeration, achieving maximum energy utilization through waste heat recovery and refrigeration cycle.

The utility model provides a compression-resistant assembly, including base plate, bearing plate, support rod, shock absorption compression-resistant piece and stationary fixture, the number of support rod is provided with two, the left and right symmetry is provided on the base plate, the bearing plate is provided with the guide hole corresponding to the support rod, the shock absorption compression-resistant piece is provided with the guide hole, the fixed fixture is provided with the shock absorption compression-resistant piece, and the fixed fixture is provided with the shock absorption compression-resistant piece. The bearing plate is slidably mounted on the supporting rods through the guide holes and is arranged above the bottom plate; the groove type bridge frame is installed on the bearing plate through the fixing clamp, after the bearing plate is pressed, the first connecting rod and the second connecting rod generate downward rotation fluctuation at the same time, kinetic energy generated when the first connecting rod and the second connecting rod rotate can be effectively absorbed through the damping spring shock absorber, and then the longitudinal wave shock absorption and pressure resistance effects are achieved; meanwhile, the bottom plate also shares the force applied to the bearing plate by the cable, the supporting stability is improved, the heat dissipation positioning holes in the groove type bridge are used for achieving heat dissipation and can be matched with the positioning rods to achieve fixing and positioning, and the fixing stability of the bridge body is improved.

The invention discloses a compressor applied to an air conditioner of a railway vehicle, which is characterized in that a junction box is arranged outside a shell, a heat absorption part is arranged at the top of the shell, the heat absorption part is configured to absorb heat generated when the compressor works, a heat conduction part extends along the outside of the shell, and a heating fastening part is arranged outside the shell. The junction box is arranged on the heating fastening part, one end of the heat conduction part is connected with the heat absorption part, the other end of the heat conduction part is connected with the heating fastening part, the heat conduction part is configured to conduct heat of the heat absorption part to the heating fastening part, and the heating fastening part is configured to heat the junction box. According to the scheme, waste heat generated when the compressor works is used for actively heating the junction box, so that the potential insulation hazard caused by condensation of the junction box is more efficiently solved.

This utility model discloses an absorption-compression high-temperature heat pump system for recovering waste heat. Its two-stage compression heat pump system includes high and low pressure compressors, a compression system condenser and evaporator, and a medium- and low-temperature waste heat recovery evaporator. The high-temperature absorption heat pump system includes a high-temperature absorber, a high-temperature solution heat exchanger, a high-temperature generator, an evaporative condenser, and a high-temperature evaporator. The low-temperature absorption heat pump system includes a low-temperature solution heat exchanger, a low-temperature absorber, a low-temperature generator, a low-temperature condenser, and an evaporative condenser. The absorption heat pump-driven heat source water system includes a compression system condenser, high and low temperature generators, and a high-temperature evaporator. The waste heat recovery water system includes a compression system evaporator and a low-temperature condenser. Its structure is compact, the heat flow path is clear, and internal heat is recycled. It recovers waste heat while achieving efficient thermal coupling between the compression and absorption stages, increasing the heat generation temperature. It has a wide range of applications and meets the needs of energy saving and high-temperature heating.

The invention relates to the technical field of high-temperature heat pumps, in particular to an absorption and compression medium-high temperature heat pump system which comprises a medium-temperature output subsystem and a high-temperature output subsystem. The medium-temperature output subsystem comprises a low-pressure absorber, a second liquid pump, a second solution throttle valve, a first heat exchanger, a medium-pressure generator and a condenser which are connected; an independent medium-temperature output loop is constructed by additionally arranging a low-pressure absorber, a medium-pressure generator, a first heat exchanger and other core components, and output of high-temperature steam of 150 DEG C or above and medium-temperature hot water of about 60 DEG C can be achieved at the same time; the high-temperature loop is responsible for outputting high-temperature steam, the medium-temperature loop is responsible for outputting medium-temperature hot water, the heat exchange temperature difference of cold and hot fluid is reduced through hierarchical design, and irreversible loss is reduced; through modular integration of the high-temperature output subsystem and the medium-temperature output subsystem, only a small number of components such as the low-pressure absorber, the medium-pressure generator and the first heat exchanger are additionally arranged, the double-temperature output requirement can be met at the same time, the number of heat exchange equipment, valves and pipelines is reduced, the structure is simplified, and the cost is reduced.

The invention relates to the technical field of heat management of air conditioning equipment, and discloses an air conditioner compressor operating environment optimization method based on radiation refrigeration, which comprises a phase change energy storage unit, a heat transfer loop unit and a self-adaptive system of a radiation heat dissipation unit. The phase change energy storage unit is used for absorbing heat of the compressor, and heat shock is buffered through phase change latent heat; a temperature control valve in the heat transport loop unit passively controls on or off of a loop based on a temperature threshold value, so that self-adaptive heat transport is realized; and the radiation heat dissipation unit radiates heat to the outside by utilizing a spectrum selective structure. Under a low-load or night working condition, thermal resetting of the phase change medium is realized through continuous heat dissipation, and surface attachments are removed by using condensed water generated on the surface in cooperation with the micro-nano composite super-hydrophobic structure. Through a multi-stage passive thermal control mechanism, the temperature fluctuation of the compressor is effectively stabilized, self-cleaning is realized by utilizing a condensation phenomenon, and the technical problem that the radiation heat dissipation performance is attenuated along with accumulated dust is solved.

This utility model discloses a heat dissipation and noise reduction structure for a negative ion generator, including a base, a compressor, and a fan. The compressor is mounted on the base via a shock-absorbing column, and a partition is provided between the base and the compressor. The partition has an opening for the shock-absorbing column to pass through. A shielding cover is fitted over the compressor, and the fan is fixed to the top of the shielding cover. The partition has a mesh structure located directly below the compressor. The base is divided into a first noise reduction chamber, a second noise reduction chamber, a third noise reduction chamber, and a fourth noise reduction chamber. The first noise reduction chamber is located below the mesh structure of the partition, and the third and fourth noise reduction chambers are connected to the exhaust port on the base. This utility model uses a shielding cover with sound-absorbing cotton attached to the outside of the compressor to absorb the noise generated during compressor operation; a mesh partition is set between the shielding cover and the base to optimize airflow distribution; and multiple noise reduction chambers are set in the base to effectively attenuate noise of different frequencies, improving the noise reduction effect.

The application relates to a heat storage defrosting system, an air conditioner and a control method, and relates to the technical field of air conditioners, and solves the problem that, in the prior art, when a unit is defrosted, heat supply to a user is stopped, causing indoor environment temperature to fluctuate. The heat storage defrosting system comprises a heat storage module, a defrosting module and a refrigerant circulation module, wherein the heat storage module is arranged outside a compressor motor in the refrigerant circulation module, the defrosting module is arranged around a fin heat exchanger in the refrigerant circulation module, when the unit needs to be defrosted or the like, heat carrier in a heat exchange pipeline in the heat storage module can absorb heat generated by the compressor motor and is transported to the defrosting module, the defrosting module sprays the heat carrier towards the fin heat exchanger, heating circulation does not need to be stopped, and defrosting operation can be performed through the separately arranged defrosting module. The heat storage defrosting system can be operated without stopping heating when defrosting, so that the indoor temperature is not affected.

The invention discloses a refrigeration display cabinet condensate water multistage self-evaporation cooperative control device and method. The device comprises a heat compensation device, an evaporator, a condensate water storage tank, a compressor, a PCM module, a condenser, an evaporation water tank and an ultrasonic atomization device. The heat compensation device is connected with the PCM module and the ultrasonic atomization device and used for storing heat for the PCM module and supplying power to the ultrasonic atomization device. The evaporator is connected with the compressor; the condensate water storage tank is connected with the evaporation water tank; the compressor and the condenser are connected with the evaporation water tank; the PCM module is used for absorbing condensation waste heat generated in the operation process of the compressor and releasing the absorbed heat when the compressor is shut down so as to evaporate condensate water in the evaporation water tank. The condensate water collecting tank is arranged behind the condenser and tightly attached to the PCM cavity, condensation waste heat is absorbed and stored by the PCM, the PCM releases heat to heat condensate water after the compressor is shut down, waste heat recycling is achieved, and the energy-saving effect is achieved.

The invention discloses a heat utilization device of an air source heat pump compressor driver, which comprises a heat absorption device used for absorbing heat generated during operation of the compressor driver; the heat dissipation device is used for heating the air cooling heat exchanger to restrain freezing; the heat circulating pipeline is connected with the heat absorption device and the heat dissipation device and is used for transferring heat from the heat absorption device to the heat dissipation device through a circulating medium in the heat circulating pipeline; the circulating pump is mounted on the heat circulating pipeline and used for driving the circulating medium to circularly flow in the heat circulating pipeline; the control unit is connected with the circulating pump and used for controlling operation of the circulating pump; the heat storage device is arranged in the heat circulation pipeline, the heat storage device comprises a sealed container and at least one heat exchanger, and the space between the heat exchanger and the wall of the sealed container is filled with a phase change heat storage material; and the temperature sensor is arranged on the compressor driver. The problem of freezing of the air-cooled heat exchanger is solved by recycling waste heat generated during operation of the compressor driver.

A thermal management system and a vehicle. The thermal management system comprises a solid-state cooling module (104) and a compressor (101), wherein the solid-state cooling module is used for releasing heat to a thermal management loop in which the compressor is located when the thermal management system is executing a heating function; and / or, the solid-state cooling module is used for absorbing heat from the thermal management loop in which the compressor is located when the thermal management system is executing a cooling function. The solid-state cooling module comprises a first metal plate (201), a solid-state cooler (203) and a second metal plate (202), wherein the first metal plate is internally provided with a flow channel that allows a fluid to flow therethrough, and the solid-state cooler is used for implementing heat exchange between the first metal plate and the second metal plate. By means of such a configuration, the thermal management system can maintain efficient operation even in an overly cold or overly hot environment.

The invention relates to the technical field of compressed air energy storage power generation, in particular to a compressed air energy storage system coupled with an ultra-high temperature heat pump, which comprises a heat storage module, a heat pump module, a fused salt energy storage module and the like, the heat storage module is configured in the mode that a heat exchange working medium flowing out of the low-temperature storage tank absorbs heat of compressed air and flows into the high-temperature storage tank, and part of the heat exchange working medium flows out of the high-temperature storage tank to heat the compressed air entering the air expansion module and then flows back to the low-temperature storage tank. The heat pump module is configured as follows: part of the heat exchange working medium flows out from the high-temperature storage tank to heat air entering the heat pump compressor, and then flows back to the low-temperature storage tank; compressed air generated by the heat pump compressor exchanges heat energy to the fused salt, the fused salt is stored in the fused salt energy storage module, and then the fused salt flows into the heat pump expansion machine for power generation. The heat pump module is coupled, surplus heat energy is completely utilized, and after a high-temperature heat exchange working medium is used by the heat pump module, backflow parameters can meet the circulation conditions of heat storage and heat release of the heat storage module.

The utility model provides an energy-saving air source heat pump water heater, and belongs to the technical field of water heaters. Comprising a source heat pump body, a water inlet pipe and a compressor, the preheating assembly is arranged on the compressor and the water inlet pipe and comprises a preheating pipe, a heated pipe and a communicating pipe, and the communicating pipe is used for absorbing heat of the compressor and preheating cold water in the water inlet pipe through cooperation of the heated pipe and the communicating pipe; the preheating pipe, the heated pipe and the communicating pipe communicate with one another, the preheating pipe and the heated pipe are winding pipes, the preheating pipe wraps the peripheral side wall of the water inlet pipe, and the communicating pipe wraps the peripheral side wall of the compressor. The preheating assembly is arranged, heat of the compressor is utilized through the heated pipe and transmitted to the preheating pipe through the communicating pipe, the water inlet pipe is preheated, heat dissipation of the compressor can be improved, meanwhile, cold water in the water inlet pipe is preheated through preheating, the later heating operation load is reduced, and the energy-saving effect is improved.

The present invention relates to an A-CAES system comprising: a compressor unit configured to compress supplied air; a compressed air storage device configured to store the compressed air supplied by the compressor unit; an expander unit configured to expand air supplied from the compressed air storage device; an air piping system connecting the compressor unit to the compressed air storage device and the compressed air storage device to the expander unit for directing air into the compressor unit and from the compressor unit to the compressed air storage device and from the compressed air storage device to the expander unit and from the expander unit after the air has been expanded;a first air / liquid salt heat exchanger device, which is designed to absorb thermal energy from the air compressed by the compressor unit and to cool the air to a first temperature, and a first air / water heat exchanger device downstream of the first air / liquid salt heat exchanger device in the air piping system, which is designed to absorb thermal energy from the air compressed by the compressor unit and to further cool the air to a second temperature, which is lower than the first temperature, for supplying the air to the compressed air storage device.

According to the zero-carbon shower hot water system, a photovoltaic module is arranged on the upper surface of a heat absorption plate, and after the heat absorption plate absorbs heat, a working medium is gasified and enters an integrated heat exchanger and then flows into the heat absorption plate through a liquid storage cavity pipeline to complete siphon circulation; when heat is insufficient, the compressor is started, high-temperature and high-pressure working medium gas discharged by the compressor enters the integrated heat exchanger, exchanges heat with tap water, is condensed into a low-temperature and high-pressure liquid working medium and flows out of the bottom of the integrated heat exchanger, and the liquid working medium passes through the throttling valve and then is evaporated by the evaporator to become a low-temperature and low-pressure gas working medium. And the low-temperature and low-pressure gas working medium is absorbed and compressed by the compressor to become high-temperature and high-pressure gas to complete heat supply circulation of the compressor system. Photovoltaic power generation is adopted for providing power for the system, zero carbon can be achieved, heat is recycled, the evaporation temperature is high, energy efficiency is efficient and stable, few valves, pipelines and control systems are used, and the system is simple, economical, efficient and reliable.

The invention relates to a compressor, a compressor waste heat recycling system and a control method.The compressor comprises a water heater and the compressor, a shell of the compressor is of a double-layer structure, an independently-arranged cavity is formed in the shell, and the cavity is connected with a water tank of the water heater through a water outlet pipeline and a water return pipeline; water in the water heater is communicated with the cavity, and the water outlet pipeline or the water return pipeline is provided with a pump body used for conveying water to circulate. The refrigerator or freezer is reasonable in structural design, the compressor structure of the refrigerator or freezer is physically modified to be provided with the cavity capable of storing water, heat emitted by the compressor is continuously absorbed by water in the cavity, so that the water temperature is increased, the heat is recycled, and on the basis of the structure, the cavity is connected with the water heater, so that the water temperature is increased. Water with a certain temperature can be directly used for the water heater, so that the electric energy consumption of the water heater for heating water is reduced, and a certain energy-saving effect is achieved.

This utility model discloses an improved aeration device to prevent the pH value of aquaculture water from decreasing, belonging to the technical field of aquaculture equipment. The device includes an air compressor and a CO2 absorption device. The air compressor has an air inlet and an air outlet pipe. The CO2 absorption device is a sealed container filled with a strong alkaline solution, and the CO2 absorption device has an inlet and an outlet. The air compressor outlet pipe is connected to the inlet of the CO2 absorption device and is inserted into the strong alkaline solution. The outlet of the CO2 absorption device is connected to an air stone placed in the aquaculture water through an outlet coil and a hose. This utility model absorbs CO2 from compressed air through the strong alkaline solution in the CO2 absorption device, preventing CO2 from entering the aquaculture water and causing a decrease in pH value. It can maintain a suitable pH environment for fish growth, reduce fish diseases, promote growth, and the device has a simple structure and low cost, making it suitable for widespread application.

The utility model discloses an ethylene compressor cooling device, which belongs to the technical field of ethylene compression, and comprises a shell, a support frame arranged at the top of the shell, a cooling mechanism arranged at the top of the support frame, a compression mechanism arranged on the inner side of the shell, a cooling mechanism comprising a heat insulation protective shell, and a protective shell arranged on the inner side of the heat insulation protective shell, the protection shell is fixedly connected with a plurality of backflow baffles, and the inner sides of the backflow baffles are fixedly connected with water cooling assemblies. The water cooling assembly comprises a condensation pipe, the outer side of the condensation pipe is fixedly connected to the inner side of the backflow baffle, and the outer side of the heat insulation protection shell is fixedly connected to the outer side of the supporting frame. The contact area and the contact time of cooling liquid and the surrounding hot environment are increased, so that heat generated in the compression process is more efficiently absorbed, the temperature of ethylene gas and compressor parts can be reduced, equipment damage and performance reduction caused by too high temperature are avoided, the service life of the compressor is prolonged, the compression efficiency is improved, and the service life of the compressor is prolonged. The requirements of large-scale production are met.

The application discloses a control method for increasing system suction superheat degree by recovering waste heat of a compressor, wherein an auxiliary electronic expansion valve is controlled according to the temperature difference between the suction port of the compressor and the outlet of the auxiliary electronic expansion valve, so as to control the flow of refrigerant in the waste heat micro-channel. The micro-channel heat exchanger is arranged on the surface of the compressor, absorbs the heat generated during the operation of the compressor through radiation transmission, and uses the heat to perform secondary heating on the frozen oil and liquid refrigerant at the bottom of the gas-liquid separator, so that the frozen oil and liquid refrigerant are returned to the suction port of the compressor, the low-pressure pressure of the compressor is obviously increased, the liquid refrigerant at the bottom of the gas-liquid separator is prevented from returning to the compressor through the oil return pipe and causing damage to the compressor, the suction superheat degree of the compressor is improved, the scope of the system main electronic expansion valve is increased, and the refrigerating capacity and the heating capacity of the system are improved.

The invention relates to the technical field of industrial waste heat recovery and high-temperature heat energy supply, in particular to an absorption-compression type heat pump system for low-temperature waste heat recovery and a control method of the absorption-compression type heat pump system. The novel absorption-compression type heat pump system comprises a waste heat recovery system, an absorption system, a steam compression system and a load system. The invention further provides a control method of the novel absorption-compression type heat pump system. The problem that the temperature rise of a single heat pump system is limited can be solved, the requirement of an industrial high-temperature heat source is met, a low-temperature heat source can be directly utilized, multi-cycle efficient coupling is achieved, the comprehensive COP of the system is improved, and the operation safety and the compression efficiency of the system are improved. And environment-friendly working medium water is also adopted, so that the safety and the green performance are improved.