115 results about "Adsorption refrigeration" patented technology

The invention relates to the technical field of refrigeration cycle, and discloses a dry filter of an air conditioner refrigeration cycle system, which comprises a shell, a liquid inlet at the front end of the shell and a liquid outlet at the tail end of the shell, and a front filter plate and a rear filter plate are respectively mounted in the hollow annular table in a sliding manner. The space of the front drying cavity is increased, so that when small particles generated by pulverization of a drying agent are led to the rear drying cavity, the drying agent in the rear drying cavity is kept in a compact state at the moment, and it is ensured that the rear drying cavity has the capacity of adsorbing moisture in a refrigerant; when the space of the rear drying cavity is increased, small particles generated by pulverization of the drying agent are discharged out of the drying cavity, at the moment, the drying agent in the front drying cavity is kept in a compact state, and it is ensured that the front drying cavity has the capacity of adsorbing moisture in the refrigerant. Therefore, small particles generated by pulverization of the drying agent can be effectively cleaned, and moisture in the refrigerant can be reliably removed.

Embodiments of the present disclosure provide a cooling system for a data center, including a heat exchanger and an adsorption refrigeration assembly. The heat exchanger is configured to cool a first secondary side cooling liquid and provide the cooled first secondary side cooling liquid to a device to be cooled. The adsorption refrigeration assembly is connected to the heat exchanger and configured to receive a heated first secondary side cooling liquid from the device to be cooled, use the heated first secondary side cooling liquid as a heat source to desorb at least one adsorption refrigeration module in the adsorption refrigeration assembly, return the first secondary side cooling liquid to the heat exchanger, condense water vapor desorbed from the at least one adsorption refrigeration module into condensed water, and cool a second secondary side cooling liquid with the condensed water and provide the cooled second secondary side cooling liquid to an air conditioning device.

According to the marine adsorption type refrigerating device, a six-valve circulation technology is adopted, continuous cold supply to a cold using unit is achieved, high-temperature heat conduction oil for heat storage can be used as a heat source, the living quality on a ship can be flexibly and conveniently improved, and when a cold storage technology of a cold storage device is adopted, flexible adjustment can be conducted according to the low-load and large-load-change operation working conditions; the adsorption type refrigeration device is mostly in a running state close to full load in the working period, the service life of the device can be prolonged, and the expected social and environment-friendly benefits are obvious.

The application provides a composite adsorption medium and an adsorption bed based on the composite adsorption medium, and a preparation method of the composite adsorption medium is as follows: S1, silica gel, metal organic framework material and a binder are uniformly mixed according to a mass ratio of 1:1:0.15 to obtain a mixed powder; S2, deionized water is heated to 60 DEG C, the mixed powder is added, and stirring is uniformly carried out, and then standing and cooling to room temperature are carried out to obtain a mixed solution; S3, a macroporous scale porous medium is prepared and pretreated to remove surface oxides; S4, the pretreated macroporous scale porous medium is immersed in the mixed solution, liquid accumulation in the pores is blown off, and the immersion is repeated for multiple times; and S5, drying treatment is carried out after the immersion. The application also provides the adsorption bed based on the composite adsorption medium, the adsorption bed has higher adsorption capacity, heat and mass transfer effects are better, and structural stability is good, and the adsorption bed can be applied to an adsorption refrigeration or dehumidification system, and system performance can be greatly improved.

This invention discloses an evaporator for an adsorption refrigeration machine and the adsorption refrigeration machine itself, comprising: a cooling medium inlet and a cooling medium outlet; a liquid refrigerant inlet and a gaseous refrigerant outlet; at least one cooling medium flow plate for supplying cooling medium flow, each cooling medium flow plate being connected to both the cooling medium inlet and the cooling medium outlet; and at least one refrigerant flow plate for supplying refrigerant flow, each refrigerant flow plate being connected to both the liquid refrigerant inlet and the gaseous refrigerant outlet. The refrigerant flow plates and cooling medium flow plates are alternately stacked. This evaporator is a plate evaporator. By alternately stacking the cooling medium flow plates and refrigerant flow plates, plate cavities are formed between any adjacent cooling medium flow plates and refrigerant flow plates, creating alternating cooling medium flow spaces and refrigerant flow spaces. This achieves interactive heat exchange between the refrigerant and the cooling medium, resulting in a cooling effect. It has a high heat transfer coefficient, low thermal resistance, and high evaporation efficiency.

The present invention discloses a sub-Kelvin temperature range refrigeration mechanism, comprising a pulse tube refrigeration unit, a first pre-cooling heat exchanger, a throttling refrigeration unit, a second pre-cooling heat exchanger, an adsorption refrigeration unit, a third pre-cooling heat exchanger, and a dilution refrigeration unit. The pulse tube refrigeration unit includes a pulse tube refrigeration unit, which is connected to the throttling refrigeration unit via the first pre-cooling heat exchanger to pre-cool the throttling refrigeration unit. The throttling refrigeration unit includes a throttling refrigeration unit, which is connected to the adsorption refrigeration unit via the second pre-cooling heat exchanger to pre-cool the adsorption refrigeration unit. The adsorption refrigeration unit includes an adsorption refrigeration unit, which is connected to the dilution refrigeration unit via the third pre-cooling heat exchanger to pre-cool the dilution refrigeration unit. The dilution refrigeration unit includes a dilution refrigeration unit, which serves as the refrigeration terminal of the sub-Kelvin temperature range refrigeration mechanism. Compared to the prior art, the refrigeration mechanism of the present invention can achieve lower cooling temperatures and greater cooling capacity.

This application relates to the field of intelligent air conditioning refrigeration technology, and discloses a control method for a dual-cooling air conditioner. The control method includes: controlling a refrigerant heat exchange system to operate in refrigerant refrigeration mode; acquiring the compressor's operating frequency and the outdoor ambient temperature; when the compressor's operating frequency is greater than or equal to a set frequency threshold and the outdoor ambient temperature is greater than or equal to a set ambient temperature threshold, controlling the adsorption refrigeration system to operate in a first desorption cold storage mode; wherein, the first desorption cold storage mode includes: the evaporator being disconnected from the first adsorption section, maintaining communication with the second adsorption section, and maintaining communication between the first adsorption section and the second adsorption section. The control method provided by this disclosure can adjust the on / off state of the pipeline connection of the adsorption refrigeration system during the desorption cold storage stage according to the outdoor ambient temperature and the compressor's operating frequency. This application also discloses a control device for a dual-cooling air conditioner and a dual-cooling air conditioner.

This invention belongs to the field of mixed working fluid cryogenic refrigeration technology, and particularly relates to a dual-adsorption refrigerant pressure-reducing gas storage tank, including a vertical cylindrical main body tank, a top flange cover, a filter assembly, and an internal adsorption assembly. The adsorption assembly includes a three-stage gradient pore size adsorption layer and a surrounding stainless steel mesh grid, which are used to intercept large molecules, medium molecules, and deeply adsorb small molecules of refrigerant, respectively. The outer wall fins of the main body tank dissipate heat, and the bottom exhaust pipe is heated to achieve bidirectional temperature control. The top flange cover integrates a multi-functional interface and is sealed to the tank body. The filter assembly pre-treats the incoming gas. The entire structure realizes the staged adsorption, temperature control optimization, shutdown pressure reduction, and desorption reuse of mixed working fluid gas, significantly reducing the system static pressure, reducing the compressor startup load, and improving operational stability.

A system for regulating and controlling a refrigerant in an evaporator. Said system comprises: an evaporator, having an evaporation cavity and a freezing fluid channel capable of exchanging heat with a liquid refrigerant in the evaporation cavity; a liquid reservoir, used for storing the liquid refrigerant; and a delivery pump and control valves, one of which can introduce the liquid refrigerant in the liquid reservoir into the evaporation cavity, and the other of which can introduce the liquid refrigerant in the evaporation cavity into the liquid reservoir. By means of the configuration of the liquid reservoir, the control valves and the delivery pump, the liquid level of the liquid refrigerant in the evaporation cavity can be better controlled, such that the evaporation cavity is always in a good evaporation state, allowing the evaporator to have better evaporation effects, especially when the discharge efficiency of a gaseous adsorbent in the evaporation cavity is not high. In summary, said system can effectively solve the problem of uncontrollable evaporation effects of existing evaporators. Also disclosed in the present invention is an adsorption refrigeration device.

The application relates to the technical field of air conditioner intelligent refrigeration, and discloses a control method for a double-refrigeration air conditioner. The control method comprises the following steps: in the case that a refrigerant heat exchange system operates in a refrigerant refrigeration mode, controlling an adsorption refrigeration system to enter a desorption cold storage mode; acquiring an outdoor coil temperature of an outdoor heat exchanger and a first temperature of an adsorption part; and if the outdoor coil temperature of the outdoor heat exchanger and the first temperature of the adsorption part satisfy a first temperature condition, controlling to exit the desorption cold storage mode. The control method can control the exit of the desorption cold storage mode according to the adsorption part temperature of the adsorption refrigeration system and the outdoor coil temperature, can reduce the adverse influence caused by the fact that the desorption cold storage cannot be performed due to the excessively high adsorption part temperature, and realizes accurate control on the desorption cold storage process when the refrigerant heat exchange system refrigerates. The application further discloses a control device for the double-refrigeration air conditioner and the double-refrigeration air conditioner.

The systems of the present disclosure include a solar-powered steam Rankine cycle (SRC) subsystem to convert solar energy into thermal energy and store the thermal energy; an ejector refrigeration cycle (ERC) subsystem to provide a first refrigeration effect with a first range of temperature based on the thermal energy; an absorption refrigeration cycle (ARC) subsystem to provide a second refrigeration effect with a second range of temperature based on the thermal energy; a brine refrigeration cycle (BRC) subsystem to generate and store when there is no cooling demand and provide a third refrigeration effect with a third range of temperature based on the electrical power generated by the ERC subsystem and the ice being melted; and an adsorption refrigeration cycle (ADRC) subsystem to provide a fourth refrigeration effect with a fourth range of temperature based on the thermal energy.

Adjust the capacity of the refrigeration system. [Solution] The refrigeration device (100) is a refrigeration device through which a refrigerant and an adsorbent are circulated, and comprises a compressor (131), a pressure reducing mechanism (132), a first heat recovery unit (133), a second heat recovery unit (134), and a control unit (105). The first heat recovery unit (133) recovers the heat generated when the adsorbent adsorbs the refrigerant. The second heat recovery unit (134) recovers the cold energy generated when the adsorbent desorbs the refrigerant. The first heat recovery unit (133) has a first heat transfer tube (133a) through which a mixture of refrigerant and adsorbent passes. When the control unit (105) changes the rotational speed of the compressor (131) and the throttling amount of the pressure reducing mechanism (132) to change the capacity of the second heat recovery unit (134) from the first capacity to a second capacity which is greater than the first capacity, it increases the area ratio of the refrigerant occupying the first cross-section C of the second heat transfer tube (134a).

The application discloses an adsorption refrigeration system monitoring method, comprising the following steps: obtaining the heat exchange fluid temperature at the inlet of the heat exchange channel of the adsorption bed in a preset stage as the heat exchange fluid inlet temperature; and adjusting the heat exchange fluid flow rate at the inlet of the heat exchange channel of the adsorption bed in the preset stage according to the heat exchange fluid inlet temperature to correct the heat exchange amount of the heat exchange channel. In the adsorption refrigeration system monitoring method, when the heat exchange fluid temperature changes, the corresponding corrected flow rate can better avoid the desorption time length or the adsorption time length from changing too much, so that the desorption time length and the adsorption time length can maintain a stable ratio, and the adsorption refrigeration system can orderly perform desorption and adsorption, and the refrigeration efficiency can be better ensured. The application further discloses an adsorption refrigeration system monitoring method, a computer readable storage medium and a computer program product.

This invention discloses a dual-cycle, installation-free, energy-saving air conditioner that recovers waste heat for refrigeration, belonging to the field of air conditioning and refrigeration technology. It incorporates a compression refrigeration system and an adsorption refrigeration system within the casing. A sealed phase-change heat transfer coupler is fitted onto the outer wall of the compressor's high-pressure pipe. The inner sleeve of the coupler, along with the outer sleeve wound around the generator's outer wall, forms a vacuum phase-change loop via a steam riser and a liquid return pipe, transferring compressed waste heat across the system to the generator. A double-layer jacket for condensation heat recovery is fitted onto the outer wall of the second condenser, connected to an auxiliary heating coil via an electronic flow control valve, an intermediate heat exchanger, and a circulating pump. This auxiliary heating coil, alternately wound around the generator with the outer sleeve, forms a dual heat source compensation. The insulation box is divided into a desorption chamber and a cold air chamber. Cold air from the cold air chamber is guided to the compressor and the second condenser for secondary cooling via an electric air valve and a duct. The control unit coordinates and regulates each actuator based on multiple temperature thresholds. This invention achieves dynamic coupling of dual-cycle waste heat recovery and cold source reuse, eliminating the need for an outdoor unit and improving the overall system energy efficiency.

Provided is a refrigeration apparatus (100), in which a refrigerant and an adsorbent circulate, comprising a compressor (131), a decompression mechanism (132), a first heat recovery unit (133), a second heat recovery unit (134), and a control unit (105). The first heat recovery unit (133) recovers hot heat generated when the adsorbent adsorbs the refrigerant. The second heat recovery unit (134) recovers cold heat generated when the adsorbent desorbs the refrigerant. The first heat recovery unit (133) has a first heat transfer tube (133a) through which a mixture of the refrigerant and the adsorbent passes. The control unit (105) changes at least one of the rotation speed of the compressor (131) and the throttle amount of the decompression mechanism (132), and, when changing the capacity of the second heat recovery unit (134) from a first capacity to a second capacity larger than the first capacity, increases the area ratio of the refrigerant occupying a first cross section C of a second heat transfer tube (134a).

The invention relates to the technical field of refrigerating systems, and discloses an adsorption refrigerating system and method based on the radiation cooling technology. A condenser is used for condensing gaseous working fluid into liquid working fluid; the evaporator is used for evaporating the liquid working fluid into gaseous working fluid to generate a refrigeration effect, and a third radiation cooling device is arranged on the evaporator; the condensate water loop is used for conveying the liquid working fluid in the condenser to the evaporator; a first radiation cooling device is arranged on the first adsorption device; a second radiation cooling device is arranged on an inlet path of the first liquid water loop; a fourth radiation cooling device is arranged on the second adsorption device; the heat dissipation performance of the system is effectively enhanced, the temperature of a key position is reduced, and the refrigerating capacity of the system is increased.

This invention discloses an adsorption refrigeration device, comprising an adsorption bed and a condenser arranged side-by-side in a horizontal direction. The condenser has a first steam inlet at its upper part, and the adsorption bed has a first steam outlet at its upper part, with the first steam inlet connected to the adsorption bed. This arrangement significantly improves overall efficiency and reduces the resistance to steam transfer between the condenser and the adsorption bed. Therefore, this adsorption refrigeration device effectively solves the problem of poor steam transfer between the condenser and the adsorption bed. This invention also discloses a server liquid cooling system incorporating the above-mentioned adsorption refrigeration device.

This invention discloses an adsorption refrigeration device, comprising: multiple adsorption refrigeration modules, each including a heat source inlet, an adsorption bed, and a bed evaporator. The adsorption chamber of the adsorption bed is provided with an adsorbent to exchange heat with a heat exchange channel. The heat source inlet supplies a heat source fluid to the heat exchange channel. The evaporator's evaporation chamber supplies a gaseous adsorbent to the adsorption chamber, and the evaporator is provided with a refrigeration fluid channel capable of exchanging heat with the liquid adsorbent in the evaporation chamber. A heat source supply port supplies heat source fluid to the heat source inlet to enable the adsorption refrigeration modules to operate. A first control valve is used to change the number of adsorption refrigeration modules supplied by the heat source supply port. This adsorption refrigeration device effectively solves the problem of poor refrigeration effect caused by poor adaptability of adsorption refrigeration systems.

The utility model discloses a rotating wheel switching type adsorption refrigeration device, and relates to an adsorption refrigeration device. In order to solve the problem that the mass transfer efficiency is reduced due to the fact that an existing fixed single-bed or multi-bed adsorption refrigeration device is too large in size, the rotating wheel switching type adsorption refrigeration device is composed of an inner barrel, an annular hollow outer shell, an evaporator, a condenser and a liquid storage tank. A plurality of adsorption beds are arranged to perform adsorption and desorption processes at the same time, and rotary-cut conversion adsorption and desorption functions are performed, so that continuous cooling can be realized; meanwhile, the multi-channel medium pipe is arranged, the problem that the mass transfer efficiency is reduced due to the too large size is effectively solved, the annular hollow outer shell is in a fixed state, arrangement is convenient, and the occupied area is reduced.

The invention discloses an all-weather temperature control and dehumidification water collection system for an island plant factory. The all-weather temperature control and dehumidification water collection system comprises a photovoltaic photo-thermal double-effect energy collection unit, a double-bed alternate adsorption type refrigeration unit, a double-temperature-zone phase change energy storage unit, a dehumidification water collection unit, a high-temperature working medium pipeline, a refrigerant circulation pipeline and a low-temperature working medium pipeline. Through dynamic coupling of the double-bed alternate adsorption type refrigeration unit and the double-temperature-zone phase change energy storage unit, an all-weather continuous operation energy gradient utilization system is constructed, the two adsorption beds adopt a day and night alternate desorption-adsorption working mode, and the PCM high-temperature heat storage tank stores solar heat energy for desorption of the adsorption beds at night. And the PCM low-temperature heat storage tank stores the cooling capacity of the evaporator for cooling and refrigerating the daytime adsorption bed, so that the intermittent working mode limitation of daytime desorption and night refrigeration of a traditional solar refrigeration system is broken through, and all-weather refrigeration temperature control of the plant factory is realized.

This invention discloses a monitoring method for an adsorption refrigeration system, comprising the following steps: acquiring the adsorption chamber pressure of the first-stage adsorption bed, as the first-stage bed pressure; acquiring the heat exchange chamber pressure of the first heat exchanger currently connected to the adsorption bed, as the first-stage heat exchange pressure; and outputting a first output result when the difference between the first-stage bed pressure and the first-stage heat exchange pressure is less than a first preset value, wherein the first output result indicates that the first stage is completed. The above judgment method relies solely on the pressure difference between the heat exchange chamber and the adsorption chamber, and is a phased judgment method. This provides a reference condition for subsequent monitoring of the adsorption bed's operating efficiency, enabling the adsorption bed's operating efficiency to be monitored and thus ensuring the efficient operation of the adsorption bed. This invention also discloses an adsorption refrigeration system monitoring method, a computer-readable storage medium, and a computer program product.

Refrigeration devices that comprise an adsorption refrigeration cycle have a period in which heat of adsorption or heat of desorption is not recovered, immediately after the switching of a refrigerant flow path, and have a risk of decline in performance. A refrigeration device (100) comprises a refrigerant flow path (111), a compressor (131), a first adsorber (121), a second adsorber (122), a switching mechanism (135), a first pressure vessel (171), a second pressure vessel (172), an opening / closing mechanism, and a control unit (105). The first adsorber (121) and the second adsorber (122) have an adsorbent (181). The control unit (105) executes: first control for allowing a flow of a refrigerant between the first adsorber and the first pressure vessel and the flow of the refrigerant between the second adsorber and the second pressure vessel; second control for switching the refrigerant flow path between a first state and a second state; third control for allowing the flow of the refrigerant between the first adsorber and the second adsorber; and fourth control for allowing the flow of the refrigerant between the first adsorber and the second pressure vessel and the flow of the refrigerant between the second adsorber and the first pressure vessel.

This invention discloses a load-based liquid cooling system, comprising: a load heat exchange structure for absorbing heat from a load device; a flow regulating device for regulating the flow rate of fluid entering the load heat exchange structure; an adsorption refrigeration system for absorbing heat from an introduced heat source fluid to prepare a cryogenic fluid, including a heat source fluid inlet for introducing the heat source fluid, wherein the fluid exiting the fluid outlet of the load heat exchange structure can form a heat source fluid for supplying to the heat source fluid inlet; and a controller capable of controlling the flow regulating device to adjust the flow rate according to the temperature of the fluid exiting the fluid outlet of the load heat exchange structure, so that the temperature of the fluid exiting the fluid outlet of the load heat exchange structure is within a preset temperature range. The above-described load-based liquid cooling system effectively solves the problem of low heat source utilization in current adsorption refrigeration equipment. This invention also discloses a method for controlling the temperature of the load device.

The invention provides an integrated heat management system of a transport vehicle, a control method of the integrated heat management system and electronic equipment. The integrated heat management system comprises a heat pump air conditioner module, an adsorption type refrigeration air conditioner module, a power battery module, a motor heat management module, a fuel cell heat management module, a heating and ventilation module and a central heat exchange module. The central heat exchange module comprises a plurality of fluid input ends and a plurality of fluid output ends; the fluid input end and the fluid output end are used for being connected with a target module to achieve fluid communication, and the target module is one of the heat pump air conditioner module, the adsorption type refrigeration air conditioner module, the power battery module, the motor heat management module, the fuel battery heat management module and the heating and ventilation module. Thermal management integrated control based on temperature dynamic judgment can be achieved, fuel cell waste heat of the transport vehicle can be effectively utilized, the thermal management control efficiency and the waste heat utilization effect are improved, and the method can be widely applied to the technical field of vehicle thermal management control.

This invention discloses a monitoring method for an adsorption refrigeration system, comprising the following steps: connecting the heat exchange chamber of a first heat exchanger to the adsorption chamber of an adsorption bed; acquiring the first inlet fluid temperature and the first outlet fluid temperature of the heat exchange fluid channel of the first heat exchanger; executing a first output step: when the difference between the first inlet fluid temperature and the first outlet fluid temperature is less than a first preset value, outputting a first output result, wherein the first output result represents the completion of the current stage of the adsorption bed. This adsorption bed monitoring method can effectively solve the problem of poor monitoring effect of adsorption bed adsorption-desorption efficiency. This invention also discloses an adsorption refrigeration system monitoring method, a computer-readable storage medium, and a computer program product.

To solve the problem in an adsorption type refrigeration cycle in which a difference between the pressure in a high-pressure region of a refrigerant flow passage and the pressure in a low-pressure region of the refrigerant flow passage is preferably reduced as soon as possible when the refrigerant flow passage is switched.SOLUTION: A refrigerating device 100 comprises a refrigerant flow passage 111, a compressor 131, a first adsorber 121, a second adsorber 122, a switching mechanism 135, a bypass flow passage 211, a bypass valve 212, and a control unit 105. The first adsorber 121 and the second adsorber 122 each comprise an adsorbent 181. The bypass flow passage 211 connects the first adsorber 121 and the second adsorber 122 without passing through the compressor 131. The bypass valve 212 opens and closes the bypass flow passage 211. The switching mechanism 135 can switch the refrigerant flow passage 111 between a first state in which the inside of the first adsorber 121 is put into a high-pressure state and the inside of the second adsorber 122 is put into a low-pressure state, and a second state in which the inside of the first adsorber 121 is put into the low-pressure state and the inside of the second adsorber 122 is put into the high-pressure state.SELECTED DRAWING: Figure 1

This invention discloses an adsorption refrigeration device, comprising: an adsorption bed, wherein an adsorption chamber of the adsorption bed is provided with an adsorbent; an evaporator, wherein an evaporation chamber of the evaporator is used to supply gaseous adsorbent to the adsorption chamber, and a cryogenic fluid channel is provided for heat exchange with the liquid adsorbent in the evaporation chamber; a heat exchange device having a temperature control channel adjustable according to the heat exchange power, the outlet of the temperature control channel being connected to the inlet of the cryogenic fluid channel for supplying cryogenic fluid to the cryogenic fluid channel; and a first flow distribution device for distributing the fluid flowing out of the outlet of the cryogenic fluid channel to the cryogenic fluid supply port and the inlet of the temperature control channel according to a set distribution ratio, wherein the set distribution ratio is adjustable. This adsorption refrigeration device can effectively solve the problem of instability during the adsorption stage of adsorption refrigeration devices. This invention also discloses a liquid cooling system including the above-mentioned adsorption refrigeration device.

1. The name of the design product: adsorption refrigeration machine (1). 2. The use of the design product: for refrigeration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to the technical field of wind power generation equipment, and discloses an integrated intelligent cooling and lubricating system for a gearbox of a wind generating set, which comprises a main circulating pump set, a heat source distribution subsystem, an adsorption type refrigeration subsystem, a jet flow execution subsystem and an acoustic liquid feedback control subsystem. The main circulating pump set extracts high-temperature lubricating oil, the high-temperature lubricating oil is distributed to the adsorption type refrigeration subsystem through a bistable fluid reversing valve in the heat source distribution subsystem, and refrigeration circulation is driven by oil waste heat. The cooled lubricating oil enters the fluid oscillation nozzle, and the generated pressure pulsation frequency changes along with the viscosity change of the lubricating oil. When the oil temperature rises to enable the pulsation frequency to be matched with the inherent frequency of an acoustic liquid resonance tube in the acoustic liquid feedback control subsystem, the acoustic liquid resonance tube resonates and transmits amplified pressure waves to a control port of the bistable fluid reversing valve, and flow path switching is triggered. The self-adaptive thermal management can be realized without electric control by utilizing the thermal viscosity acoustic liquid coupling characteristic of the fluid.

The application relates to the technical field of air conditioner intelligent refrigeration, and discloses a control method for a double-refrigeration air conditioner. The control method comprises the following steps: when the double-refrigeration air conditioner operates in a first mode, an evaporation part temperature set of an adsorption refrigeration system group is acquired; the first mode comprises that a refrigerant heat exchange system is in a refrigerant refrigeration mode and the adsorption refrigeration system group is in a desorption cold storage mode; the evaporation part temperature set comprises a first temperature of an evaporation part of each adsorption refrigeration system; and the operation state of the desorption cold storage mode of one or more adsorption refrigeration systems in the adsorption refrigeration system group is controlled according to the evaporation part temperature set of the adsorption refrigeration system group. In the control method, the temperature change of the evaporation part can reflect the operation state of the adsorption refrigeration system group, and the desorption cold storage mode is adjusted accordingly, so that accurate control of the desorption cold storage process when the refrigerant heat exchange system is refrigerating can be realized. The application further discloses a control device for the double-refrigeration air conditioner and the double-refrigeration air conditioner.