381 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.

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 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 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.

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 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 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.

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 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.

The invention relates to a solid oxide fuel cell stack module test platform and a use method thereof. The platform comprises various components such as an SOFC electric pile module, a desulfurizer, a carrier gas type steam generator, a fuel preheater, a reformer, a fuel reheater, an anode tail gas circulating fan, an anode circulating tail gas cooler, an air compressor and an air buffer tank. The air compressor, the mass flow controller, the air electric heater and the heat exchanger cooperate to supply high-temperature air and fuel to the SOFC stack module, and the flow and temperature of anode circulating tail gas can be adjusted. And the anode tail gas circulating fan, the anode circulating tail gas cooler and the stop valve are matched, so that the SOFC stack module and the anode tail gas circulating fan can be tested. A pipeline, a temperature sensor, a pressure sensor and an electric control system are further arranged in the platform. The embodiment of the invention is reasonable in design, has safety, and can meet related test requirements.

The invention relates to the technical field of maleic anhydride production, in particular to an n-butane fixed bed oxidation and DBP solvent absorption system, a molecular sieve membrane and a preparation method, the system comprises an air pretreatment unit, an oxidation unit and an absorption unit; the oxidation unit comprises an n-butane evaporation tank, an air-butane mixer, an oxidation reactor, a fused salt cooler, a gas cooler and a switching cooler; a molecular sieve filter body is arranged at a bottom outlet of the switching cooler; the absorption unit comprises an absorption tower, and the absorption tower is used for absorbing crude maleic anhydride in the reaction generated gas passing through the molecular sieve filter body; the molecular sieve filtering body is provided with an inlet for the reaction generated gas to enter, an outlet for the reaction generated gas to release and an internal cavity for communicating the inlet and the outlet, and after the reaction generated gas in the cavity is released through the outlet, part of water is filtered. The system can be used for efficiently adsorbing and removing moisture in the butane oxidation generated gas, and coking of equipment is reduced.

The invention relates to a process for the production of maleic anhydride (MA) by a catalytic partial gas phase oxidation reaction of saturated and / or unsaturated C4 hydrocarbons, characterized in that the gas coolers 5 (tube bundle coolers) downstream of the isothermally controlled reactor unit 1 are at least partially equipped with a catalyst 7 and are thus at least partially used as post-reactor(s) for the oxidative degradation of the undesired by-products formed in the main reactor 2, in particular acrylic acid, and the cooling capacity of the gas coolers is minimized by a maximum of 20% by the installation of the catalyst.

The utility model discloses a compressor performance test system, which is characterized in that an air inlet of an exhaust pipeline stop valve is connected with a refrigerant outlet of a tested compressor, and an air outlet is connected with an inlet of a gas flow meter; an outlet of the gas flowmeter is connected with a gas inlet of the exhaust pressure regulating valve The exhaust pressure regulating valve air outlet is connected with the suction pressure regulating valve air inlet and the condenser first air inlet; the condenser is provided with an internal circulation electric heating assembly, a first air outlet is connected with an air inlet of the air suction pressure regulating valve, and a first liquid outlet is connected with a liquid inlet in the side wall of the lower portion of the liquid storage device. The liquid storage device is connected with the condenser in parallel, a first gas outlet is connected with a first gas inlet of the condenser, a second gas outlet is connected with a gas inlet of the gas cooler through the suction temperature regulating valve, and the liquid level is the same as that of the condenser; the suction pressure regulating valve gas outlet is connected with the gas cooler gas inlet; a gas outlet of the gas cooler is connected with a refrigerant inlet of the tested compressor through a compressor suction pipeline stop valve.

The utility model provides a gas cooler and cooling equipment capable of improving thermal shock durability, which comprises a shell, a gas cooler, a cooling liquid cooler, a gas cooler and a cooling liquid cooler, and is characterized in that the shell is provided with a gas communication port and a cooling liquid communication port; the flat pipes are arranged at intervals in the thickness direction of the shell, the space, located outside the flat pipes and located in the shell, of each flat pipe is a cooling liquid flowing channel, the interior of each flat pipe is a gas transmission channel, and the cooling liquid flowing channels are isolated from the gas transmission channels; the fins are arranged in the flat pipes, and the ends, facing the input end of the gas to be cooled, of the fins are completely covered by the cooling liquid flowing channels in the thickness direction of the shell. The heat of the to-be-cooled gas is diffused into the cooling liquid flowing channel through the gas transmission channel, the gas cooling operation process is formed, the ends, facing the input end of the to-be-cooled gas, of the fins can be completely covered by the action range of the cooling liquid, and therefore the cooling efficiency is improved. The cooling device has the advantages of being long in service life, stable in cooling effect, high in use safety degree, capable of avoiding frequent maintenance and overhaul and the like.

According to the device, a gas compressor, a gas heater and an atomizing gas pipe form an atomizing gas part, a cooling powder making chamber, a fan, a gas cooler and a cooling gas pipe form a cooling powder making part, and the cooling powder making chamber, the fan, the gas cooler and the cooling gas pipe form the cooling powder making part. The Venturi tube atomizer, the molten metal conveying pipe, the atomization liquid conveying pipe and the molten metal pool form an atomization part, and the molten metal pool is arranged at the lower end of a throat of the Venturi tube atomizer and communicated with the molten metal conveying pipe through the vertically-downward atomization liquid conveying pipe. High-temperature molten metal enters the molten metal pool through the molten metal conveying pipe and the atomization liquid conveying pipe, high-temperature atomization gas is accelerated to pass through the molten metal surface through the throat portion of the Venturi tube atomizer, the molten metal surface is torn off under the supercavitation effect, the molten metal is brought out, and the molten metal is diffused and atomized at a diffusion opening along with the gas to form finer liquid drops. And the atomized gas is brought into the cooling powder-making chamber and is cooled into metal powder by the cooling gas.

A vapour compression refrigeration system has a main refrigerant circuit having a main gas cooler or condenser arranged in a high pressure branch, a first main evaporator arranged in a first low pressure branch, a main compressor fluidically connecting the first low pressure branch to the high pressure branch, and an expansion device connecting the high pressure branch to an intermediate pressure branch. The system has a by-pass branch connecting the high-pressure branch to the intermediate pressure branch and provided with a by-pass valve, a secondary refrigerant circuit having a secondary gas cooler or condenser arranged in a secondary high pressure branch, a secondary evaporator arranged in a secondary low pressure branch, and a secondary expansion device connecting the secondary high pressure branch to the secondary low pressure branch. A rotary pressure exchanger is fluidically connected to the by-pass branch downstream of the by-pass valve and the secondary refrigerant circuit.

The application discloses an absorbent tower external regeneration and oxygen removal method and system, and the method comprises the following steps: 1) the lean liquid from the bottom of the regeneration tower enters a negative pressure buffer tank, the top of the negative pressure buffer tank is connected with a steam compressor, the lean liquid extracted by the steam compressor enters a lean-liquid rich-liquid heat exchanger through a lean-liquid pump; 2) water vapor containing a small amount of CO2 enters the steam compressor, enters a regeneration oxygen remover after being adjusted by an adjusting valve I; 3) the rich liquid enters the top of the regeneration oxygen remover from top to bottom after being discharged from the lean-liquid rich-liquid heat exchanger, and steam enters the regeneration oxygen remover from bottom to top; 4) the rich liquid enters the regeneration tower from the top after being regenerated and stripped by heating; 5) the regeneration gas I after completing the heating regeneration and stripping of the rich liquid and the regeneration gas II discharged from the top of the regeneration tower enter a gas-liquid separator after passing through a gas cooler, the separated condensed water returns to the regeneration tower from the top, and the separated gas enters a membrane separation device after being compressed by a CO2 compressor. The method reduces the energy consumption of the system and realizes the cooperation of oxygen removal and energy saving.

Vehicle air conditioning system (1) with a refrigerant circuit (2) operable as a heat pump circuit with heating function and as a refrigeration circuit with cooling and dehumidification function, comprising: - a refrigerant compressor (4), two shut-off valves (14, 15) connected to the refrigerant compressor (4) on the high-pressure side, an evaporator (3), a refrigerant condenser / gas cooler (5) for dissipating heat extracted from a refrigerant into a vehicle environment by means of an air flow (L2), a first expansion element (6) associated with the evaporator (3) and a heat exchanger (7) for heating a passenger compartment, wherein the listed components (3, 4, 5, 6, 7) form the refrigerant circuit (2), wherein - a shut-off valve (14) for refrigeration system operation can be connected to the refrigerant condenser / gas cooler (5) via a branch point (2.1), and - the other shut-off valve (15) of the two shut-off valves (14, 15) for the heating function can be connected to the heat exchanger (7), characterized in that - a second expansion element (17) is arranged upstream of the refrigerant condenser / gas cooler (5), - a further shut-off valve (16) is arranged downstream of the heat exchanger (7) in such a way that, when the further shut-off valve (16) is open, the branch point (2.1) is connected to the first expansion element (6), and - when the further shut-off valve (16) is open, at least one partial refrigerant flow can be diverted downstream via the second expansion element (17) via the branch point (2.1) of the refrigerant circuit (2).

The utility model provides an adsorption tower cooling system. The adsorption tower cooling system comprises a gas compressor; the carbon dioxide backflow pipeline is arranged at the input end of the gas compressor; the gas compressor outlet pipe is arranged at the output end of the gas compressor; and the gas cooler is arranged at the output end of the gas compressor outlet pipe. According to the adsorption tower cooling system provided by the utility model, the gas compressor inlet shut-off valve, the gas compressor outlet shut-off valve, the gas cooler inlet shut-off valve, the gas cooler outlet shut-off valve, the adsorption tower gas inlet shut-off valve and other structures are matched with one another; according to the gas cooler, accurate control can be conducted according to actual needs, flexible adjustment of the flow direction and flow of gas is achieved, and therefore the gas passes through the interior of the gas cooler at the appropriate speed, is cooled to the appropriate temperature and then is exhausted, and energy waste is avoided.

The application discloses a transcritical CO2 ultra-high temperature heat pump system and a temperature control method, wherein supercritical CO2 is a high-temperature and high-pressure fluid at the outlet of a gas cooler, throttles to an evaporation pressure, and a large amount of throttling loss exists, which leads to the decrease of the heating energy efficiency ratio of the transcritical CO2 heat pump system, and is not conducive to the best energy-saving benefit of the ultra-high temperature heat pump. In view of the above problems, the application innovatively couples gas-electric dual-drive technology, two-stage compression intermediate cooling technology and mechanical supercooling technology, which can effectively reduce the high-pressure fluid temperature before the throttling valve of the CO2 working medium, reduce the throttling loss, drive the supercritical compressor through the adjustable turbine expander, reduce the power consumption of the compressor, improve the heating energy efficiency of the CO2 heat pump system, and flexibly and efficiently and stably supply steam in a wide range of variable working condition adjustment, improve the full working condition operation efficiency, achieve the purposes of energy saving and emission reduction and production cost reduction, and further widen the application range and application prospect of the high-temperature heat pump system.

Supercritical refrigerant circuit with compressor-ejector combination for vehicle air conditioning, comprising a section for a total refrigerant flow, a section for a suction jet refrigerant partial flow, and a section for a motive jet refrigerant partial flow, wherein in the section for the suction jet refrigerant partial flow an air conditioning evaporator (8) with associated expansion element (9) for providing cooling in an air conditioning system (32), a compressor (1), a gas cooler (2), an expansion element (5), and a suction jet heat exchanger (6), and in the section for the motive jet refrigerant partial flow a motive jet heat exchanger (33), wherein an ejector (7) is provided in which the suction jet refrigerant partial flow and the motive jet refrigerant partial flow of the refrigerant circuit are combined.wherein an ambient heat exchanger (10) and, in parallel, an air conditioning gas cooler (12) for providing heat in the air conditioning system (32) and, subsequently, a subcooler (11) are arranged in the total refrigerant flow, after which the total refrigerant flow is divided into the suction jet refrigerant partial flow and the motive jet refrigerant partial flow.