Diffusion absorption refrigeration and vapor compression refrigeration combined cycle device

Abstract

The invention belongs to the technical field of combined refrigeration devices, and particularly relates to a diffusion absorption refrigeration and vapor compression refrigeration combined cycle device which comprises a compressor, a generator, a first condenser, a throttling valve, a first evaporator, a second condenser, a second evaporator, a gas heat exchanger, an absorber, a liquid storage device, a liquid heat exchanger and a hydrogen tank. The liquid storage device comprises a tank body; a liquid inlet channel and an air inlet pipe are arranged at the top of the tank body; a liquid outlet pipe is arranged at the bottom of the tank body; the air inlet pipe is communicated with an air spraying head; a turntable is rotationally and hermetically matched with the top of the jet head; and a group of nozzles are uniformly distributed on the surface of the turntable. When the mixed gas is discharged upwards through a nozzle of the gas spraying head, counter-acting force can be provided to drive the rotating disc to rotate at the top of the gas spraying head, so that bubbles which spirally move upwards are formed in the liquid inlet channel and mutually impact, mix and communicate with a dilute solution which moves downwards, and ammonia gas in the mixed gas is promoted to be fully absorbed in water.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of combined refrigeration devices, in particular to a diffusion-absorption refrigeration and vapor compression refrigeration combined cycle device. BACKGROUND

[0002] In the current field of refrigeration technology, improving energy utilization efficiency is the key to addressing energy shortages and environmental protection requirements. Although vapor compression refrigeration systems are widely used, the lack of supercooling of refrigerant at the outlet of the condenser limits the further improvement of system energy efficiency. Although traditional regenerative cycles can increase supercooling, they can easily lead to increased compressor power consumption and reduced gas flow, and the effect is not good for some working fluids. On the other hand, the heat carried by the high-temperature superheated steam discharged by the compressor is directly discharged, causing energy waste and heat pollution. Therefore, it is necessary to optimize the system structure to improve the gas-liquid mass transfer efficiency, so as to fully exploit the energy-saving potential of combined cycles.

[0003] A patent of Chinese patent application CN102322705B discloses a diffusion-absorption refrigeration and vapor compression refrigeration combined cycle device, and the technical solution points are as follows: a compressor, a generator, a first condenser, a throttling valve, a first evaporator, a second condenser, a second evaporator, a gas heat exchanger, an absorber, a liquid accumulator, a liquid heat exchanger, and a hydrogen tank are included. On the vapor compression refrigeration cycle side, the compressor discharge port is connected to the inlet of the heat exchanger in the generator, the outlet of the heat exchanger is connected to the inlet of the first condenser, the outlet of the first condenser is connected to the inlet of the second evaporator through the throttling valve, the outlet of the throttling valve is connected to the inlet of the first evaporator, and the outlet of the first evaporator is connected to the suction port of the compressor.

[0004] However, the above-mentioned technology often has the following defects: the existing combined cycle device has obvious defects in the absorption stage. Although the dilute solution and the ammonia-hydrogen mixed gas enter the liquid accumulator together, due to the limitations of the structural design, the two lack effective mixing and contact mechanisms in the liquid accumulator and the absorber, resulting in low mass transfer efficiency between the gas and liquid phases, the ammonia gas cannot be fully dissolved in the dilute solution, and the absorption process is not complete, which not only reduces the efficiency of the diffusion-absorption refrigeration cycle, but also affects the thermal performance of the entire combined system. Poor absorption effect will further lead to insufficient concentration of the solution in the generator, weakening the driving ability of the bubble pump, thereby affecting the regeneration and circulation efficiency of the refrigerant, and ultimately restricting the improvement of the overall refrigeration coefficient of the system.

[0005] Therefore, the present application provides a diffusion-absorption refrigeration and vapor compression refrigeration combined cycle device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the diffusion absorption refrigeration and vapor compression refrigeration combined cycle device of the present invention includes a compressor, a generator, a first condenser, a throttle valve, a first evaporator, a second condenser, a second evaporator, a gas heat exchanger, an absorber, a liquid receiver, a liquid heat exchanger, and a hydrogen tank. The liquid storage device includes a tank body; the top of the tank body is provided with a liquid inlet channel and an air inlet pipe; the bottom of the tank body is provided with a liquid outlet pipe; The outlet ends of both the liquid inlet channel and the air inlet pipe extend into the interior of the tank; the outlet end of the air inlet pipe is connected to a jet nozzle; the jet nozzle is located inside the outlet port of the liquid inlet channel; a turntable is rotatably sealed to the top of the jet nozzle; a set of nozzles are evenly distributed on the surface of the turntable; the nozzles are tangent to the turntable and angled upwards.

[0008] Preferably, a rotating shaft is rotatably connected inside the liquid inlet channel; a set of drainage blades are evenly distributed on the surface of the rotating shaft; the rotating shaft is controlled to rotate by a motor.

[0009] Preferably, the bottom of the liquid inlet channel is provided with a disc-shaped expansion section; an isolation cover is fixedly connected inside the expansion section; the isolation cover is designed to face downwards, and there is a gap between the isolation cover and the expansion section.

[0010] Preferably, an annular guide is fixedly connected to the inner side of the expanded diameter portion at a position below the isolation cover; the top of the guide is designed to be recessed downwards.

[0011] Preferably, a detection chamber is provided at the bottom of the tank, and the liquid outlet pipe is connected to the detection chamber; a set of guide holes are evenly distributed on the surface of the detection chamber; and an ammonia concentration sensor is provided inside the detection chamber.

[0012] Preferably, the outlet pipe is equipped with a solenoid valve; the solenoid valve is connected to the ammonia concentration sensor through a PLC control system.

[0013] Preferably, a reflux pipe is connected between the detection chamber and the top of the liquid inlet channel; a circulation pump is installed on the reflux pipe.

[0014] Preferably, a set of atomizing elements are evenly distributed on the inner side of the bottom of the isolation cover; the atomizing elements are made of porous water-absorbing material; the lower end of the rotating shaft passes through the isolation cover and is rotatably connected to it; a set of brackets are evenly distributed on the lower end of the rotating shaft; rollers are rotatably connected to the ends of the brackets, and the rollers are in contact with the inner side of the isolation cover.

[0015] Preferably, the atomizing element is covered with an elastic membrane; the bottom and top of the elastic membrane are respectively provided with an inlet and an outlet, and the outlet faces the top of the isolation cover.

[0016] Preferably, magnetic blocks are fixedly connected to the upper side of the bracket; a set of paddles are evenly distributed on the inner side of the top of the isolation cover; and an elastic strip is fixedly connected between the paddles and the isolation cover.

[0017] The beneficial effects of this invention are as follows: 1. The diffusion absorption refrigeration and vapor compression refrigeration combined cycle device of the present invention introduces a dilute solution from a liquid heat exchanger into the inlet channel, and an ammonia-hydrogen mixture from a gas heat exchanger into the inlet pipe through a gas pump. The dilute solution flows from top to bottom inside the tank, while the ammonia-hydrogen mixture flows from bottom to top inside the tank, forming a counter-current flow. When the mixture is discharged upward through the nozzle of the jet head, the special direction design of the jet airflow provides a reaction force to drive the turntable to rotate at the top of the jet head, thereby forming upward spiraling bubbles inside the inlet channel. These bubbles collide, mix, and exchange with the downward moving dilute solution, promoting the full absorption of ammonia in the mixture into the water. Since the hydrogen in the bubbles is insoluble in water and has a low density, it continues to rise inside the inlet channel and leaves. The resulting concentrated solution is finally stored inside the tank.

[0018] 2. The diffusion absorption refrigeration and vapor compression refrigeration combined cycle device of the present invention, in the absorption process, drives the rotating shaft and multiple guide vanes to rotate by a motor, and the rotation direction is opposite to the rotation direction of the turntable. The guide vanes are used to stir the dilute solution inside the liquid inlet channel, so that it forms a downward spiral water flow. Therefore, the dilute solution and the mixed gas can form a flow pattern with opposite movement and spiral direction, which improves the interaction and impact effect and the degree of chaos between the two, accelerates the dissolution of ammonia in water, and the bubbles are stirred and sheared by the guide vanes during the rising process, which can further release the residual ammonia in the bubbles into the water.

[0019] 3. The diffusion absorption refrigeration and vapor compression refrigeration combined cycle device of the present invention, by setting an expansion section and an isolation cover, allows the dilute solution to flow downwards through the gap between the expansion section and the isolation cover and to flow in a dispersed manner. The upward-flowing mixed gas will reach the recess on the lower side of the isolation cover and stay for a period of time. After enough gas has accumulated on the lower side of the isolation cover, the mixed gas will continue to move upwards through the edge of the isolation cover and exchange and mix with the dilute solution in the gap. During the time that the gas stays on the lower side of the isolation cover, the flowing dilute solution surrounds the gas on the lower side of the isolation cover, thus allowing ammonia and water to come into full contact and mix with each other. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the liquid storage device in this invention; Figure 2 This is a schematic diagram of the pipe connection of the present invention; Figure 3 This is a schematic diagram of the structure of the isolation cover in this invention; Figure 4 This is a schematic diagram of the jet head structure in this invention; Figure 5 This is a cross-sectional view of the liquid reservoir in this invention; Figure 6 This is a cross-sectional view of the expanded diameter portion in this invention; Figure 7 yes Figure 6 Enlarged view of a portion of point A in the middle.

[0022] In the diagram: 1. Tank body; 2. Liquid inlet channel; 3. Air inlet pipe; 4. Liquid outlet pipe; 5. Jet nozzle; 6. Turntable; 7. Nozzle; 8. Shaft; 9. Drainage vane; 10. Motor; 11. Expansion section; 12. Isolation cover; 13. Guide component; 14. Detection chamber; 15. Guide hole; 16. Ammonia concentration sensor; 17. Solenoid valve; 18. Return pipe; 19. Circulation pump; 20. Atomizing component; 21. Support; 22. Roller; 23. Elastic membrane; 24. Water inlet; 25. Water outlet; 26. Magnetic block; 27. Paddle; 28. Elastic strip. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 7 As shown, the present invention provides a combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration, comprising a compressor, a generator, a first condenser, a throttling valve, a first evaporator, a second condenser, a second evaporator, a gas heat exchanger, an absorber, a liquid receiver, a liquid heat exchanger, and a hydrogen tank. The specific arrangement and connection method of the above structure are existing technologies. For detailed working principles, please refer to CN102322705B - ​​Combined Cycle Device for Diffusion Absorption Refrigeration and Vapor Compression Refrigeration. The liquid storage device includes a tank body 1; the top of the tank body 1 is provided with a liquid inlet channel 2 and an air inlet pipe 3; the bottom of the tank body 1 is provided with a liquid outlet pipe 4; The outlet ends of both the liquid inlet channel 2 and the air inlet pipe 3 extend into the interior of the tank body 1; the outlet end of the air inlet pipe 3 is connected to a jet head 5; the jet head 5 is located inside the outlet port of the liquid inlet channel 2, and there is a gap between the jet head 5 and the liquid inlet channel 2; the top of the jet head 5 is rotatably sealed with a turntable 6; a set of nozzles 7 are evenly distributed on the surface of the turntable 6; the nozzles 7 are tangent to the turntable 6 and obliquely upward.

[0025] Existing combined cycle units have significant defects in the absorption stage. Although the dilute solution and the ammonia-hydrogen mixture enter the receiver together, due to limitations in the structural design, there is a lack of effective mixing and contact mechanisms between the two in the receiver and the absorber. This results in low mass transfer efficiency between the gas and liquid phases, and the ammonia cannot be fully dissolved in the dilute solution. The absorption process is incomplete, which not only reduces the efficiency of the diffusion absorption refrigeration cycle but also affects the thermodynamic performance of the entire combined system. Furthermore, poor absorption will further lead to insufficient solution concentration in the generator, weakening the driving capability of the bubble pump, thereby affecting the refrigerant regeneration and circulation efficiency, and ultimately restricting the improvement of the overall system coefficient of performance.

[0026] This invention introduces a dilute solution from a liquid heat exchanger into the inlet channel 2, and uses a gas pump to input an ammonia-hydrogen mixture from a gas heat exchanger into the inlet pipe 3. The dilute solution flows from top to bottom inside the tank 1, while the ammonia-hydrogen mixture flows from bottom to top inside the tank 1, creating a counter-current flow. When the mixture is discharged upward through the nozzle 7 of the jet head 5, the special directional design of the ejected airflow provides a reaction force to drive the turntable 6 to rotate at the top of the jet head 5, thereby forming upward spiraling bubbles inside the inlet channel 2. These bubbles collide, mix, and exchange with the downward-moving dilute solution, promoting the full absorption of ammonia in the mixture into the water. Since the hydrogen in the bubbles is insoluble in water and has a low density, it continues to rise inside the inlet channel 2 and leaves. The resulting concentrated solution is ultimately stored inside the tank 1.

[0027] In another embodiment of the present invention, a rotating shaft 8 is rotatably connected inside the liquid inlet channel 2; a set of drainage blades 9 are evenly distributed on the surface of the rotating shaft 8; the rotating shaft 8 is controlled to rotate by a motor 10.

[0028] During the absorption process, the motor 10 drives the rotating shaft 8 and multiple guide vanes 9 to rotate in the opposite direction to the rotation of the turntable 6. The guide vanes 9 are used to agitate the dilute solution inside the liquid inlet channel 2, causing it to form a downward spiral water flow. Therefore, the dilute solution and the mixed gas can form opposite flow patterns in terms of movement and spiral direction, which improves the interaction and impact between the two and the degree of chaos, accelerates the dissolution of ammonia in water, and the bubbles are stirred and sheared by the guide vanes 9 during the rising process, which can further release the residual ammonia in the bubbles into the water.

[0029] In another embodiment of the present invention, a disc-shaped expansion section 11 is provided at the bottom of the liquid inlet channel 2; an isolation cover 12 is fixedly connected inside the expansion section 11; the isolation cover 12 is designed to face downwards, and there is a gap between the isolation cover 12 and the expansion section 11.

[0030] By setting the expansion section 11 and the isolation cover 12, the dilute solution will pass through the gap between the expansion section 11 and the isolation cover 12 during the downward flow and flow in a dispersed manner. The upward flowing mixed gas will reach the recess on the lower side of the isolation cover 12 and stay for a period of time. After enough gas has accumulated on the lower side of the isolation cover 12, the mixed gas will continue to move upward through the edge of the isolation cover 12 and exchange and mix with the dilute solution in the gap. During the time that the gas stays on the lower side of the isolation cover 12, the flowing dilute solution will surround the gas on the lower side of the isolation cover 12, so that the ammonia gas and water can fully come into contact and mix with each other.

[0031] An annular guide 13 is fixedly connected to the inner side of the enlarged diameter portion 11 at a position below the isolation cover 12; the top of the guide 13 is designed to be recessed downwards.

[0032] By providing the guide member 13, when the dilute solution flows through the gap between the expansion section 11 and the isolation cover 12 to the bottom of the expansion section 11, the guide member 13 can guide the water flow, thereby causing the water flow to tilt upward and rise, forming a dispersed water flow and generating water droplets. The splashing water droplets can impact the mixed gas remaining on the lower side of the isolation cover 12, increasing the interaction area between the dilute solution and the gas, so as to further absorb the ammonia in the mixed gas.

[0033] In another embodiment of the present invention, a detection chamber 14 is provided at the bottom of the tank body 1, and the liquid outlet pipe 4 is connected to the detection chamber 14; a set of guide holes 15 are evenly distributed on the surface of the detection chamber 14; and an ammonia concentration sensor 16 is provided inside the detection chamber 14.

[0034] The liquid outlet pipe 4 is equipped with a solenoid valve 17; the solenoid valve 17 is connected to the ammonia concentration sensor 16 through a PLC control system.

[0035] The concentrated solution stored in tank 1 can enter the detection chamber 14 through the guide hole 15. When the concentrated solution needs to be transported to the generator through the outlet pipe 4, the ammonia concentration sensor 16 monitors the ammonia concentration of the solution in the detection chamber 14 in real time. If the ammonia concentration reaches a certain standard, the solenoid valve 17 will open automatically to allow the solution to flow out. If the ammonia concentration is detected to be lower than the above standard, the solenoid valve 17 will close automatically to prevent unqualified solution from entering the generator.

[0036] In another embodiment of the present invention, a reflux pipe 18 is connected between the detection chamber 14 and the top of the liquid inlet channel 2; a circulation pump 19 is provided on the reflux pipe 18.

[0037] If the ammonia concentration sensor 16 detects that the concentration of the solution in the detection chamber 14 is insufficient, the PLC control system controls the circulation pump 19 to work, and draws the solution in the detection chamber 14 into the liquid inlet channel 2 through the return pipe 18 to reabsorb ammonia gas until the ammonia concentration sensor 16 detects that the value reaches the standard.

[0038] In another embodiment of the present invention, a set of atomizing elements 20 are evenly distributed on the inner side of the bottom of the isolation cover 12; the atomizing elements 20 are made of porous water-absorbing material; the lower end of the rotating shaft 8 passes through the isolation cover 12 and is rotatably connected to it; a set of brackets 21 are evenly distributed on the lower end of the rotating shaft 8; rollers 22 are rotatably connected to the ends of the brackets 21, and the rollers 22 are in contact with the inner side of the isolation cover 12.

[0039] When the dilute solution passes through the guide 13, it rises and contacts the atomizing element 20. The atomizing element 20 absorbs the dilute solution. During the rotation of the rotating shaft 8, multiple supports 21 and rollers 22 can rotate synchronously. The rollers 22 can roll on the inner surface of the isolation cover 12. When the rollers 22 roll onto the surface of the atomizing element 20, they can squeeze out the water absorbed inside the atomizing element 20. The porous structure of the atomizing element 20 allows water to form a large number of fine water droplets when squeezed out, producing an atomization effect. The atomized solution then exchanges with the mixed gas on the lower side of the isolation cover 12, improving the contact and fusion effect between ammonia and water droplets.

[0040] The atomizing element 20 is covered with an elastic membrane 23; the bottom and top of the elastic membrane 23 are respectively provided with a water inlet 24 and a water outlet 25, and the water outlet 25 faces the top of the isolation cover 12.

[0041] The dilute solution from the guide 13 comes into contact with the atomizing element 20 inside the elastic membrane 23 through the inlet 24, so that the atomizing element 20 can complete the water absorption operation. When the roller 22 squeezes the atomizing element 20, the roller 22 is blocked at the inlet 24 of the elastic membrane 23, so that the water inside the atomizing element 20 is difficult to be discharged through the inlet 24, but can only be squeezed out through the outlet 25. This operation can make the water mist generated by the atomizing element 20 spray more concentrated towards the inside of the isolation cover 12, so that the water mist can come into contact with the mixed gas.

[0042] In another embodiment of the present invention, magnetic blocks 26 are fixedly connected to the upper side of the bracket 21; a set of paddles 27 are evenly distributed on the inner side of the top of the isolation cover 12; and an elastic strip 28 is fixedly connected between the paddles 27 and the isolation cover 12.

[0043] Multiple magnetic blocks 26 rotate together with the rotating shaft 8. When the magnetic blocks 26 rotate to the area below the paddle 27, they can attract the paddle 27 and drive it to move downward. When the magnetic blocks 26 move away from the paddle 27, the elastic strip 28 pulls the paddle 27 upward, causing the paddle 27 to bounce back and forth on the lower side of the isolation cover 12 to paddle and push the mixed gas that is staying there. On the one hand, this improves the mixing efficiency between the gas and the water mist, and on the other hand, it can promote the unabsorbed hydrogen to leave upward through the edge of the isolation cover 12, so as to complete the replacement of the old gas with new gas on the lower side of the isolation cover 12.

[0044] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0045] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration, comprising a compressor, a generator, a first condenser, a throttling valve, a first evaporator, a second condenser, a second evaporator, a gas heat exchanger, an absorber, a liquid receiver, a liquid heat exchanger, and a hydrogen tank; Its features are: The liquid storage device is used to store the concentrated solution after absorbing ammonia gas; the liquid storage device includes a tank (1); the top of the tank (1) is provided with a liquid inlet channel (2) and an air inlet pipe (3); the bottom of the tank (1) is provided with a liquid outlet pipe (4); The outlet ends of the liquid inlet channel (2) and the air inlet pipe (3) both extend into the interior of the tank body (1); the outlet end of the air inlet pipe (3) is connected to a jet nozzle (5); the jet nozzle (5) is located inside the outlet port of the liquid inlet channel (2); the top of the jet nozzle (5) is rotatably sealed with a turntable (6); a set of nozzles (7) are evenly distributed on the surface of the turntable (6); the nozzles (7) are tangent to the turntable (6) and obliquely upward.

2. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 1, characterized in that: The inlet channel (2) is rotatably connected to a rotating shaft (8); a set of drainage blades (9) are evenly distributed on the surface of the rotating shaft (8); the rotating shaft (8) is controlled to rotate by a motor (10).

3. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 2, characterized in that: The bottom of the liquid inlet channel (2) is provided with a disc-shaped expansion section (11); an isolation cover (12) is fixedly connected inside the expansion section (11); the isolation cover (12) is designed to face downwards, and there is a gap between the isolation cover (12) and the expansion section (11).

4. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 3, characterized in that: An annular guide (13) is fixedly connected to the inner side of the enlarged diameter section (11) at a position below the isolation cover (12); the top of the guide (13) is designed to be recessed downwards.

5. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 1, characterized in that: The bottom of the tank (1) is provided with a detection chamber (14), and the liquid outlet pipe (4) is connected to the detection chamber (14); a set of guide holes (15) are evenly distributed on the surface of the detection chamber (14); an ammonia concentration sensor (16) is provided inside the detection chamber (14).

6. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 5, characterized in that: The outlet pipe (4) is equipped with a solenoid valve (17); the solenoid valve (17) is connected to the ammonia concentration sensor (16) through a PLC control system.

7. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 6, characterized in that: A reflux pipe (18) is connected between the top of the detection chamber (14) and the liquid inlet channel (2); a circulation pump (19) is installed on the reflux pipe (18).

8. The combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 4, characterized in that: The bottom inner side of the isolation cover (12) is evenly distributed with a set of atomizing elements (20); the atomizing elements (20) are made of porous water-absorbing material; the lower end of the rotating shaft (8) passes through the isolation cover (12) and is rotatably connected to it; the lower end of the rotating shaft (8) is evenly distributed with a set of brackets (21); the ends of the brackets (21) are rotatably connected with rollers (22), and the rollers (22) are in contact with the inner side of the isolation cover (12).

9. A combined cycle device for diffusion absorption refrigeration and vapor compression refrigeration according to claim 8, characterized in that: The atomizing element (20) is covered with an elastic membrane (23); the bottom and top of the elastic membrane (23) are respectively provided with an inlet (24) and an outlet (25), and the outlet (25) faces the top of the isolation cover (12).

10. A combined diffusion absorption refrigeration and vapor compression refrigeration cycle device according to claim 9, characterized in that: Magnetic blocks (26) are fixedly connected to the upper side of the bracket (21); a set of paddles (27) are evenly distributed on the inner side of the top of the isolation cover (12); an elastic strip (28) is fixedly connected between the paddles (27) and the isolation cover (12).

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