473 results about "Gas cooler" patented technology

The invention discloses a waste heat source transcritical CO2 heat pump system and an optimization method thereof. The waste heat source transcritical CO2 heat pump system comprises a refrigerant connecting pipeline, a gas cooler water side connecting pipeline, an evaporator water side connecting pipeline and a PID control module connected with the refrigerant connecting pipeline, the gas cooler water side connecting pipeline and the evaporator water side connecting pipeline. The compressor is connected with a first gas cooler, the first gas cooler is connected with an intermediate heat regenerator, the intermediate heat regenerator is connected with a second gas cooler, the second gas cooler is connected with an electronic expansion valve, the electronic expansion valve is connected with an evaporator, the evaporator is connected with the intermediate heat regenerator, the intermediate heat regenerator is connected with the compressor, and the intermediate heat regenerator is connected with a bypass adjusting valve in parallel. A water inlet of the second gas cooler is provided with a first water pump, a water outlet of the second gas cooler is connected with a water inlet of the first gas cooler, and the water side of the second gas cooler is connected with a water temperature adjusting valve in parallel. A second water pump is arranged at a water inlet of the evaporator. Under the conditions of a waste heat source and a low pressure ratio, deep utilization of waste heat resources can be achieved, and intermediate temperature backheating required by high heat supply temperature is met.

A test chamber and a method for conditioning air in a test space thereof for receiving test material, the test space being configured to be sealed from an environment and temperature-insulated, a cooling device of a temperature control device of the test chamber, which comprises a cooling circuit with carbon dioxide as a refrigerant, a heat exchanger in the test space, a low-pressure compressor, and a high-pressure compressor, a gas cooler, and an expansion valve downstream of the low-pressure compressor in a flow direction of the refrigerant, being used to establish a temperature between −20° C. to +180° C. within the test space, a control device of the test chamber being used to control the temperature and / or a relative humidity in the test space. A dehumidifier bypass of the cooling circuit, which comprises a second expansion valve and a second heat exchanger, is used to dehumidify air in the test space.

The present invention relates to a method for operating a supercritical refrigerant circuit (10), in particular for a motor vehicle. The refrigerant circuit (10) comprises a main circuit (12) with a compressor (14), an electronically controlled and lockable first expansion valve (18), a gas cooler (16) for heating a medium to be heated, and at least one pressure sensor (26B), which are arranged downstream of the compressor (14) and upstream of the first expansion valve (18), a chiller (20) and / or an evaporator (22) for cooling a medium to be cooled, which are arranged downstream of the first expansion valve (18) and upstream of the compressor (14), and a refrigerant receiver (24) downstream of the chiller (20) and / or evaporator (22) and upstream of the compressor (14).The refrigerant circuit (10) further comprises at least a first branch (30) with a lockable second expansion valve (32), which branches off downstream from the compressor (14) and upstream from the gas cooler (16) and is connected to the refrigerant receiver (24), wherein the pressure between compressor (14) and first expansion valve (18), preferably between compressor (14) and gas cooler (16), is determined.The refrigerant circuit (10) is characterized in that, when it is detected that the pressure downstream of the compressor (14) and upstream of the first expansion valve (18) is below a specified first pressure value (P1), the main circuit (12) is shut down, in particular by closing the first expansion valve (18) and opening the second expansion valve (32), so that the refrigerant flow downstream of the compressor (14) is essentially completely routed through the first branch (30) to be drawn back into the compressor (14) via the refrigerant receiver (24).

The invention discloses process equipment and method for high-temperature nitrogen-free sintered magnesia, and belongs to the technical field of high-temperature combustion of industrial kilns, and the process equipment is composed of a calcining kiln, a bag-type dust collector, an induced draft fan, a gas cooler, a gas mixer, a liquid oxygen storage tank, a gasifier, PLC control equipment and a high-pressure fan. The oxygen content in the mixed gas is controlled to be 21-25%, artificial nitrogen-free combustion-supporting air is obtained to replace air to complete sintering of magnesia, air is not used, 79% of nitrogen components in the air are prevented from entering a combustion system, discharged tail gas is reduced by more than 2 / 3, heat loss in smoke is reduced, nitrogen oxide is not generated, catalytic reduction denitration is not needed, and the production cost is reduced. As the flue gas does not need to be heated, the energy consumption cost is saved. The concentration of carbon dioxide in discharged flue gas can reach more than 90%, liquid carbon dioxide is prepared through pressurization, and waste is turned into wealth.

The invention relates to a radiator assembly (10) for a motor vehicle, comprising a first radiator (24) for cooling a refrigerant, and comprising an air guiding device (26). When the radiator assembly (10) is installed in the motor vehicle, a front side (46) of the first radiator (24) can be exposed to airflow via an inlet (28) of the air guiding device (26). By operating a fan (18), the first radiator (24) can be exposed to an air flow (22) from a rear side (50) opposite the front side (46). A control device (52) is provided for controlling the fan (18). The radiator assembly (10) has a second radiator (34) for cooling the refrigerant, wherein an inflow side (48) of the second radiator (34) faces the front side (46) of the first radiator (24). The second cooler (34) provides a boundary wall of the air guiding device (26) through which at least part of the air flow (22) can flow.Furthermore, the invention relates to a motor vehicle and a method for operating the radiator arrangement (10).

The invention provides an efficient energy-saving magnetic suspension centrifugal air compressor which comprises a machine case and a magnetic suspension main machine, one end of the magnetic suspension main machine is provided with a first-stage compression air inlet and a first-stage compression air outlet, the other end of the magnetic suspension main machine is provided with a second-stage compression air inlet and a second-stage compression air outlet, and the tail end of the first-stage compression air outlet is connected with an inlet of a gas cooler. An outlet of the gas cooler is connected with a secondary compression gas inlet through a secondary gas pipe; a case air inlet is formed in the case, an air inlet box is arranged in the case, and a snakelike silencing channel and a filtering channel are arranged in the air inlet box; a plurality of filtering outlets are formed in the side wall of the filtering channel, a gas filter is arranged in the filtering channel, a conical funnel is arranged outside the gas inlet box, the large end of the conical funnel is connected with the gas inlet box, the filtering outlets are covered with the conical funnel, and the small end of the conical funnel is connected with the first-stage compression gas inlet through a first-stage gas pipe. The conical funnel is additionally arranged, the effect of gathering air is achieved, pressure loss can be effectively prevented, and the efficiency of the device is guaranteed.

A motor vehicle (10) with an electric and / or internal combustion engine drive is described, wherein the motor vehicle (10) comprises: a refrigeration system (12) with a refrigerant circuit (14); a storage compartment (18) arranged in a front area (VB) of the motor vehicle (10), in particular on a passenger side; wherein the refrigerant circuit (14) comprises a refrigerant compressor (22), a first heat exchanger (24), in particular a gas cooler or condenser, and a second heat exchanger (26), in particular an evaporator, wherein the second heat exchanger (26) and the refrigerant compressor (22) are connected to each other by a first low-pressure-side refrigerant line section (28-1).It is provided that a second low-pressure-side refrigerant line section (28-2) is arranged between the second heat exchanger (26) and the refrigerant compressor (22), which is arranged parallel to the first refrigerant line section (28-1) in terms of flow technology, wherein the second refrigerant line section (28-2) is designed such that it is arranged at least partially along at least one boundary wall (18b) of the storage compartment (18) in such a way that heat can be extracted from a storage compartment interior (18i).

The utility model discloses a phenol water recovery system of a two-section type gas producer. The phenol water recovery system comprises a gas producer, a phenol water superheater, a phenol water boiler and a gas cooler. According to the phenol water recovery system of the gas producer at the two ends, the phenol water in the gas can be recovered, the sensible heat of the gas at the lower section is used for heating the phenol water to form phenol water vapor, the phenol water vapor and a gasifying agent are heated together, and the phenol water vapor is introduced into the gas producer through the first gasifying agent inlet and the second gasifying agent inlet; the superheat degree of water vapor in the gasifying agent is high, so that phenol is prevented from being brought into ash slag through condensation of the water vapor, the ash slag is prevented from being changed into hazardous waste, the problem of wastewater treatment is thoroughly solved, sensible heat of lower-section coal gas is fully utilized, energy waste is avoided, and the heat efficiency is improved.

Refrigerant circuit of a combined refrigeration system and heat pump with integrated steam injection circuit, wherein a 3-way valve (2) is arranged as a distribution point in the refrigerant circuit after a compressor (1), and an outdoor condenser / gas cooler (3), a main internal heat exchanger (5) and a check valve (6) as well as a connection point (19) are arranged in a refrigeration system line, and an indoor condenser / gas cooler (4) and a check valve (6) are arranged in a heat pump line,after which the heat pump line is joined to the refrigeration system line at the connection point (19) and the condensed or cooled refrigerant is subsequently led via an expansion device vapor injection (7) via the cold side of a secondary internal heat exchanger (8) to a medium-pressure chiller (9) and subsequently via a direct steam injection connection (18) into the compressor (1) and / or the condensed or cooled refrigerant is led via the warm side of the secondary internal heat exchanger (8) to an evaporator (12) and / or to a low-pressure chiller (13) before the refrigerant vapor is led via a liquid separator suction side (14) and the main internal heat exchanger (5) on the cold side to the suction side of the compressor (1).

A compressor device includes a compressor for compressing a gas to generate a compressed gas having at least one compressor stage, and a cooling device including an oil cooler for cooling oil heated by the compressor, a compressed gas cooler for cooling the gas that is completely or partially compressed to form the compressed gas, and a housing cooler for cooling a housing or part of the housing of the compressor. The oil cooler, the compressed gas cooler, and the housing cooler each achieve cooling by a coolant flow consisting of a liquid coolant. The compressor device further includes a housing cooler control means for individually controlling the cooling flow through the housing cooler, and a cooling control configured to actuate the housing cooler control means in such a way that the coolant flow is controlled by the housing cooler independently of the cooling flow through the oil cooler.

The invention relates to the technical field of carbon dioxide capture, in particular to a carbon dioxide regeneration system and a carbon dioxide regeneration method. The carbon dioxide regeneration system comprises a regeneration tower, a reboiler, a regeneration gas cooler, a temperature and pressure reducer, a regeneration gas heat exchanger and a superheated steam pipeline, a barren liquor outlet in the bottom of the regeneration tower is communicated with an inlet of the body part of the reboiler through an eighth circulating pump, and the top of the regeneration tower is communicated with an inlet of a regenerated gas cooler; the superheated steam pipeline is communicated with an inlet of the heating part of the reboiler through the temperature and pressure reducer; an outlet of the heating part of the reboiler is communicated with an inlet of the heating part of the regeneration gas heat exchanger through a second circulating pump; a liquid outlet of the regeneration gas cooler is communicated with an inlet of a body part of the regeneration gas heat exchanger, and an outlet of the body part of the regeneration gas heat exchanger is communicated with the top of the regeneration tower through a third circulating pump. The carbon dioxide regeneration system can prevent the regeneration efficiency of the carbon dioxide gas from being reduced.

The invention belongs to the technical fields of heating, ventilation, refrigeration and heat pumps, and relates to a liquid-cooled gas cooler and a cooling liquid flow control method thereof. In the liquid-cooled gas cooler, a cooling liquid heat exchange channel inlet of a first plate-type heat exchanger among N plate-type heat exchangers is communicated with a cooling liquid inlet, and respective cooling liquid heat exchange channel inlets of a second to an Nth plate-type heat exchanger are each communicated with the cooling liquid inlet via a stop valve; a cooling liquid heat exchange channel outlet of an Nthl plate-type heat exchanger is separately communicated with a cooling liquid heat exchange channel inlet of an Nthl+1 plate-type heat exchanger and a cooling liquid outlet via a three-way valve, and a cooling liquid heat exchange channel outlet of the Nth plate-type heat exchanger is communicated with the cooling liquid outlet; and a refrigerant inlet is communicated with a refrigerant outlet via refrigerant heat exchange channels from the Nth to the first plate-type heat exchanger in sequence. The technical solution of the present invention improves overall system performance.

The invention relates to the technical field of maleic anhydride production, in particular to a maleic anhydride production system with low solvent consumption. Comprising a maleic anhydride reactor, the maleic anhydride reactor is connected with a switching cooler through a first gas cooler, the switching cooler is sequentially connected with an absorption tower, a desorption tower, a light component tower and a finished product tower, and a solid phosphorus intercepting device is arranged at the bottom in the switching cooler. Phosphorus is intercepted at the position of the switching cooler, the motion route of reaction gas is limited through the side baffles and the upper baffle, gas resistance is adjusted through the forming positions of side baffle punched holes and the forming density of different heights, the top side baffle is not provided with punched holes, and the bottom side baffle is not provided with side baffles. The Pall ring packing on the upper, middle and lower layers can be fully utilized. The pressure drop required by the device is as small as possible, every 10-20 stainless steel Pall rings with the diameter of 5-15 mm are adopted as a group and are connected in series through a stainless steel rope, and high-speed reaction gas is prevented from being blown to an absorption tower.

The invention discloses a system and a method for capturing cement kiln flue gas carbon dioxide based on a high-temperature flue gas waste heat regeneration technology. The system comprises a carbon dioxide absorption system and a carbon dioxide desorption system, the carbon dioxide absorption system comprises a pretreatment tower, an induced draft fan, an absorption tower, a water washing tower and a rich liquid pump; the carbon dioxide desorption system comprises a rich and lean solution heat exchanger, a lean solution pump, a desorption tower, a regenerated gas cooler, a lean solution cooler and a high-temperature flue gas waste heat recovery reboiler. Compared with the prior art, the system and method for capturing the cement kiln flue gas carbon dioxide based on the high-temperature flue gas waste heat regeneration technology can effectively utilize the cement kiln high-temperature flue gas to replace external heat source water vapor to desorb CO2, can effectively reduce the CO2 capturing cost, realizes the cooling of the cement kiln high-temperature flue gas, and improves the recovery rate of CO2. Good application prospects are realized.

The utility model discloses equipment for recovering high-purity phosphorus steam, which relates to the field of phosphorus steam recovery and comprises a first spray tower and a second spray tower, a phosphorus collecting tank is fixedly arranged at the bottom end of the first spray tower, and the second spray tower is fixedly arranged at the top end of the phosphorus collecting tank. The top ends of the first spray tower and the second spray tower are connected through a second phosphorus steam guide pipe, and a gas inlet pipe is fixedly arranged at the outer end of the first spray tower. The cooling water tank is used for pre-cooling phosphorus steam to the temperature close to the dew point temperature, the advantages of good atomization performance and good spraying effect of the spiral spraying head are utilized, and the characteristics that water mist is in full contact with gas countercurrent in the first spraying tower for cooling and is in direct-current constant-speed cooling with the gas in the second spraying tower are utilized; phosphorus steam is dissolved in the phosphorus collecting tank to the maximum extent, the recycling effect is good, and the equipment is simple in structure and small in occupied area.

The invention discloses a coal-fired unit energy storage coupling carbon capture system and method based on calcium circulation, and aims to realize efficient and cheap capture of CO2 in flue gas while performing energy storage peak regulation of a coal-fired unit. The system comprises main equipment such as a calcination / heat absorption reactor, a pressurized carbonation / heat release reactor, a CaCO3 storage tank, a CaO storage tank and a CO2 storage tank, and auxiliary equipment such as a gas booster compressor, residual pressure power generation equipment, an electric heating module, a dust remover, a gas cooler, a solar gas heater and a smoke-CO2 heat exchanger. According to the method, electric energy of green electricity or valley electricity and heat energy of high-temperature flue gas of a boiler are converted into chemical energy by adopting the cyclic calcination characteristic of CaCO3-based particles and stored in the CaCO3-based particles, and the chemical energy is released again in the form of heat energy when a unit supplies heat to the outside or a power grid uses electricity at the peak. The system has high operation flexibility and economical efficiency.

The invention relates to a pneumatic performance testing system for a centrifugal refrigeration compressor, which belongs to the technical field of refrigeration compressor testing and comprises a refrigeration pipeline communicated between an outlet of a second-stage centrifugal compressor and an inlet of a first-stage centrifugal compressor. A first adjusting valve CV1, a first gas cooler and a first electric heater are sequentially arranged on the refrigeration pipeline in the advancing direction of refrigerants, a second gas cooler is arranged on the middle pipeline, and a fourth adjusting valve CV4, a fifth gas cooler and a second electric heater are sequentially arranged on the air supplementing pipeline. According to the invention, the pressure and temperature of the refrigerant entering the first-stage centrifugal compressor can be adjusted, and the pressure and temperature of the refrigerant entering the second-stage centrifugal compressor can be adjusted, so that the refrigerant gas reaches the suction pressure and temperature required by the tested two-stage centrifugal refrigeration compressor; therefore, the performance of the two-stage centrifugal refrigeration compressor can be tested respectively, and the test effect of the high-speed centrifugal refrigeration compressor is improved.

The invention discloses a process for converting biomass particles into synthesis gas by using pressurized bubbling fluidized bed equipment. The process comprises the following steps: feeding the biomass particles and fluidizing agent particles as raw materials into a gasification furnace; the gasification furnace comprises a fluidized bed area, a secondary gasification area and a post gasification area; a plurality of layers of gasification nozzles are designed in the gasification furnace, tar generated by biomass gasification can fully react in a high-temperature area of the gasification furnace, and synthesis gas generated by the pressurized bubbling fluidized bed gasification furnace enters a cyclone separator to be separated and then enters a synthesis gas cooler to be cooled; the cooled synthesis gas enters a synthesis gas filter, and the filtered synthesis gas enters a shock cooling system; the synthesis gas filtered by the synthesis gas filter enters a quench cooler of the quench system to be fully contacted with water for cooling and then enters a washing tower for washing, and the cooled and washed synthesis gas enters a downstream area; according to the invention, biomass ash fusion is reduced; and tar is reduced and eliminated.

The present invention discloses a hydrogen preservation process system and method; the present invention relates to the field of food engineering technology; it comprises a fresh-keeping cabinet 1, wherein a hydrogen production system 5 for preparing hydrogen is designed inside the fresh-keeping cabinet 1. The hydrogen production system 5 works based on the electrolysis principle, and its core components include a pure water tank 501, a water electrolyzer 505, a separation scrubber 502, a gas cooler 503, and a gas-water separator 504. In specific implementation, the pure water tank 501 is connected to the water inlet of the water electrolyzer 505 through a pipeline to provide the water electrolyzer with pure water for electrolysis. After being powered on, the water electrolyzer 505 decomposes water into hydrogen and oxygen. Subsequent gas cooling, impurity removal, and gas-water separation steps further purify the hydrogen to ensure the purity of the output hydrogen and meet the high requirements for food preservation. Pure water is used as the electrolysis raw material, and the process is clean and pollution-free. Hydrogen is used as a fresh-keeping gas, which is non-toxic and harmless and environmentally friendly.

A refrigeration system includes one or more compressors (14,24), a gas cooler (105), a flash tank (106), one or more evaporators (12,22), a heat reclaim system (110), valves (120,122,124,126), and a control system (105). The heat reclaim system receives a working fluid from the one or more compressors and the gas cooler. The heat reclaim system is fluidly coupled, through a first supply line (111), to the one or more compressors, and fluidly coupled, through a second supply line (113), to the gas cooler. The valves regulate a flow of the working fluid from the one or more compressors and the gas cooler to the heat reclaim system. The control system receiving at least one feedback signal from the heat reclaim system and, in response to the at least one feedback signal, operates the valves to regulate an amount of the working fluid circulated into the heat reclaim system from the one or more compressors and the gas cooler.

A gas cooler for a battery electric vehicle, the gas cooler including a heat exchanger having a connecting portion and a heat exchange portion, the connecting portion including a coolant inlet to allow a coolant to enter the heat exchanger, and a coolant outlet to allow the coolant to exit the heat exchanger, wherein the gas cooler further includes a bypass line configured to redirect a portion of the coolant from the coolant inlet to the coolant outlet, thereby bypassing the heat exchange portion of the heat exchanger.

The invention discloses a stacked adiabatic liquid hydrogen spherical tank which comprises a liquid hydrogen spherical tank and a support mounted at the bottom of the liquid hydrogen spherical tank, and the liquid hydrogen spherical tank comprises a liquid hydrogen spherical tank outer wall and a liquid hydrogen spherical tank inner wall. The longitudinal partition plates and the transverse porous partition plates are arranged, so that the problem of cavities during small-amplitude shrinkage of the expanded perlite filler is effectively solved, meanwhile, the overall structural strength is improved, and the problem of pressure rise during temperature rise expansion of the expanded perlite filler is solved. The filler supplementing cavity is formed in the top of the longitudinal partition area, and meanwhile, the expanded perlite filler can pass through the transverse porous partition plate, so that when the expanded perlite filler is greatly shrunk, the filler in the filler supplementing cavity is supplemented, and an obvious cavity heat leakage point is prevented from being generated at the top of the liquid hydrogen storage tank. And the gas cooler and the inner-cooling adsorber are arranged, the gas cooler is driven to freeze by using the cooling capacity gradient of the low-temperature hydrogen, and the inner-cooling adsorber is driven to adsorb the gas influencing the heat insulation performance, so that the vacuum degree maintaining time in the liquid hydrogen spherical tank is prolonged.

The invention relates to the technical field of carbon dioxide capture, and discloses a carbon dioxide capture system and a method for reducing energy consumption in the carbon dioxide capture process. The system comprises an absorption tower, a rich and lean liquid heat exchanger, a regeneration tower, a waste heat recovery refrigeration device, a regeneration gas cooler, a regeneration gas separator and a compressor which are sequentially arranged in the circulation direction of raw material flue gas containing CO2, wherein the absorption tower is used for enabling raw material flue gas containing CO2 to be in contact with an absorbent to obtain a rich solution; the lean and rich solution heat exchanger is used for carrying out heat exchange on the rich solution and a lean solution obtained at the bottom of a regeneration tower; and the waste heat recovery refrigerating device is used for carrying out waste heat recovery on regenerated gas at the top of the regeneration tower and uncondensed gas at the outlet of the compressor. According to the system, the waste heat recovery refrigerating device is adopted, so that power consumption and absorbent loss of the carbon dioxide system are reduced.

The utility model discloses a three-stage gas-liquid separator for producing hydrogen by electrolyzing water. The three-stage gas-liquid separator comprises a gas-liquid fluid inlet U-shaped spray pipe (1), a gas-liquid separation tank body (4) and a gas cooler (23) from upstream to downstream, the gas-liquid fluid inlet U-shaped spray pipe (1) is connected into the gas-liquid separation tank body (4); a gas-liquid mixture enters through the U-shaped spray pipe inlet (24) and is subjected to three-stage separation through the gas-liquid fluid inlet U-shaped spray pipe (1), the gas-liquid separation tank body (4) and the gas cooler (23), and gas subjected to three-stage separation flows out through the gas outlet (15). According to the horizontal gas-liquid separator, two stages of separation devices are additionally arranged at the inlet and the outlet of the horizontal gas-liquid separator, so that three-stage separation of a gas-liquid mixture is realized, the gas-liquid separation efficiency is improved, the gas purity is improved, and the water content of product gas is reduced.

The invention provides a data center carbon dioxide transcritical direct cooling chip backboard cooling system, which comprises a carbon dioxide gas cooler configured to generate a coolant; the coolant is carbon dioxide in a liquid state or a gas-liquid coexistence state; a plurality of liquid cooling units, wherein the liquid cooling units are configured to perform refrigeration by gasifying the coolant; and the coolant distribution unit is respectively connected with all the liquid cooling units through independent pipelines, and the coolant distribution unit is configured to perform multi-stage regulation on the refrigerating capacity of all the liquid cooling units according to the regional cooling requirements. Through the system, the problem that an existing data center cooling system cannot achieve multi-stage heat exchange adjustment is solved.

CCU technology is being researched and developed by companies and institutions around the world, but there are many issues to be addressed, such as the cost of recovering carbon dioxide gas, how to convert it into valuable resources, conversion costs, facility costs, and whether it is commercially viable. This invention proposes a high-value-added CCU system that has potential for future development and can also be used for air conditioning supply.The system consists of a wet type TSA carbon dioxide gas separation and concentration unit, a saturated vapor generator, a gas cooler, a gas compressor, a dehumidification unit, a gas liquefaction unit and refrigerator, a gas purification tank, and a dry ice production unit. The system is highly energy-efficient, compact, and air-conditionable, using carbon dioxide in the air as the gas source, by using the unliquefied gas from the post-purification process to purge the aforementioned separation and concentration equipment and recovering the uncoagulated gas from the dry ice production equipment.

A refrigeration system includes one or more compressors (14,24), a gas cooler (105), a flash tank (106), one or more evaporators (12,22), a heat reclaim system (110), valves (120,122,124,126), and a control system (105). The heat reclaim system receives a working fluid from the one or more compressors and the gas cooler. The heat reclaim system is fluidly coupled, through a first supply line (111), to the one or mor compressors, and fluidly coupled, through a second supply line (113), to the gas cooler. The valves regulate a flow of the working fluid from the one or more compressors and the gas cooler to the heat reclaim system. The control system receiving at least one feedback signal from the heat reclaim system and, in response to the at least one feedback signal, operates the valves to regulate an amount of the working fluid circulated into the heat reclaim system from the one or more compressors and the gas cooler.

The present invention relates to the technical field of wet carbon capture, and in particular to a wet carbon capture process integrating water balance control and in-system heat utilization coupling. The wet carbon capture process comprises a pretreatment unit, an absorption unit, a regeneration unit and a separation unit which are connected in sequence, wherein the separation unit decomposes a regenerated gas in the regeneration unit into water and carbon dioxide. The wet carbon capture process further comprises a recycling unit which is arranged between the regeneration unit and the separation unit, the recycling unit comprising a regenerated gas washing tower, wherein a gas intake end at the bottom of the regenerated gas washing tower is in communication with a regenerated gas outlet of the regeneration unit, and a liquid intake end at the top of the regenerated gas washing tower is in communication with an external circulation flow path of a cooling section of the pretreatment tower. In the present invention, by means of the additionally provided regenerated gas washing tower, the regenerated gas discharged from the regeneration tower can be pre-cooled by using washing water overflowing from the absorption tower so as to reduce the workload of a regenerated gas cooler; and by means of an additionally provided secondary washing tower, the washing water discharged from the regenerated gas washing tower can be used to perform secondary spraying on an exhaust gas discharged from the absorption tower.

The present invention belongs to the technical field of thermal management of rail vehicles. Disclosed is a secondary loop thermal management system for a CO2 heat pump air conditioner, comprising: a CO2 processing module comprising a compressor, a gas cooler, a throttle valve, an evaporator and a gas-liquid separator; an outdoor air module comprising a first heat exchanger and a second heat exchanger; an indoor air module comprising a cooling plate and a heating plate, wherein the heating plate comprises a third heat exchanger and a fourth heat exchanger, and the cooling plate comprises a fifth heat exchanger and a sixth heat exchanger; a drinking water module comprising a heater; and an electrical and waste heat recovery module comprising a transformer converter, a seventh heat exchanger and a high-temperature energy storage device. According to the technical solution provided by the present invention, full energy recovery and gradient utilization of energy can be realized, so that the effects of energy conservation and environmental protection are achieved; and the economic cost of a CO2 heat pump air conditioning system of the rail vehicle can be lowered, and the use safety is improved.

The invention relates to the technical field of industrial heat pumps, in particular to a transcritical CO2 circulation system capable of achieving 120 DEG C high-temperature heat tracing in a petroleum process and a control method of the transcritical CO2 circulation system. The circulating system comprises a water pump, a gas cooler, an air source evaporation part, a waste heat superheater and a compressor. The gas cooler, the air source evaporation component, the waste heat superheater and the compressor are sequentially connected, and the water pump is connected with the gas cooler. The water pump is used for providing to-be-heated water for the gas cooler; the gas cooler is used for heat exchange between the supercritical carbon dioxide working medium and water to be heated; the air source evaporation part is used for heat exchange between the external environment and the carbon dioxide working medium output by the gas cooler; the waste heat superheater is used for heat exchange between the waste heat resource and the carbon dioxide working medium output by the air source evaporation component; the compressor is used for compressing the carbon dioxide working medium output by the waste heat superheater to obtain the supercritical carbon dioxide working medium. According to the embodiment of the invention, the heat supply temperature and stability can be improved.