A refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system and working method thereof

Abstract

The present invention discloses a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system and a working method thereof; the system comprises a spray system, a refrigerant recovery and treatment system and a computer; the spray system is composed of a laser, an air pressure sensor, an air suction port, a nitrogen gas transmission port, a negative pressure chamber, a nozzle, a refrigerant storage tank and a nitrogen storage tank; the refrigerant recovery and treatment system is composed of an air suction pump, a recovery system solenoid valve, an oil separator, a drying filter, a condenser, an adsorption device, a pressure-resistant box, a liquid storage tank and a liquid storage tank pressure sensor; the present invention constructs a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment integrated device, which is easy to operate, and can realize the recovery and treatment of the refrigerant during the operation to avoid dissipation into the atmosphere and affecting the environment. It is safe and environmentally friendly and has good application prospects.

Description

Technical Field

[0001] The present invention belongs to the technical field of spray noise reduction, and in particular relates to a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system and a working method thereof used in laser skin surgery. Background Art

[0002] Cryogen Spray Cooling (CSC) has the advantages of high cooling capacity, fast evaporation of surface liquid film, high spatial and temporal selectivity, non-toxicity to the human body, safety and reliability, etc. It has been widely used in laser treatment of vascular proliferative skin diseases. Cryogen spray cooling can selectively cool the epidermis to avoid epidermal damage caused by competitive absorption of laser energy by epidermal melanin and hemoglobin in dermal diseased blood vessels, and at the same time play an anesthetic and analgesic effect, thereby improving the patient's tolerance. Due to the short spray time (within 100ms) and the high volatility of the refrigerant, CSC can selectively cool and protect normal epidermal tissue from thermal damage by the laser without affecting the temperature of skin tissue such as diseased blood vessels.

[0003] In clinical treatment, the refrigerant vapor formed after the refrigerant exchanges heat with the skin is often discharged directly into the atmosphere without any treatment, which may deplete the atmospheric ozone layer and cause the global greenhouse effect. The recovery and treatment of medical clinical refrigerants is imperative.

[0004] The basic principle of traditional refrigerant recovery is to achieve the transfer of refrigerant by establishing a pressure difference between the recovery end and the recovered end. The main recovery methods include cooling method, compression condensation method, liquid push-pull method, composite recovery method and adsorption method. Among them, the cooling method has a slow recovery speed and a long time; the compression condensation method is relatively complex, not suitable for portability, and is only suitable for the recovery of large and medium-sized refrigerants; the liquid push-pull method is suitable for large air-conditioning systems with a large amount of liquid refrigerant in the refrigeration system, and it is impossible to remove the impurities such as moisture and lubricating oil contained in the refrigerant before recovery. It can only recover most of the liquid refrigerant, and some refrigerants cannot be effectively recovered; the recovery equipment of the composite recovery method has no standard basis when switching between gas and liquid recovery modes. The operator can only rely on experience to operate, and it is difficult to ensure the best recovery efficiency. The equipment of the adsorption method is simple and portable, with a high safety factor. It can be used in the field of laser treatment of skin diseases with special requirements, but it still needs to be matched with the current medical laser therapy device. At present, there is a lack of medical refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment integrated devices on the market. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system to achieve the purpose of recovering and treating the refrigerant during the operation and avoiding dissipation into the atmosphere and affecting the environment.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] The present invention first provides a refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system, including a spray system, a refrigerant recovery and treatment system and a computer;

[0008] The spray system includes a laser, an air pressure sensor, an air extraction port, a nitrogen gas delivery port, a negative pressure chamber, a nozzle, a refrigerant storage tank, and a nitrogen storage tank;

[0009] The refrigerant recovery and treatment system includes an air pump, a recovery system solenoid valve, an oil separator, a drying filter, a condenser, an adsorption device, a pressure-resistant box, a liquid storage tank, and a liquid storage tank pressure sensor;

[0010] A refrigerant pressure gauge is provided at the end of the refrigerant storage tank, and a refrigerant solenoid valve for controlling the opening of the refrigerant pressure gauge is also provided at the connection of the refrigerant pressure gauge; a nitrogen pressure gauge is provided at the end of the nitrogen storage tank, and a nitrogen solenoid valve for controlling the opening of the nitrogen pressure gauge is also provided at the connection of the nitrogen pressure gauge; the refrigerant solenoid valve and the nitrogen solenoid valve are both electrically connected to the computer through a wire 5 to realize signal transmission and feedback control;

[0011] The negative pressure chamber is a cavity structure with an opening on one side, and an air pressure sensor and a laser are connected to the other side, wherein the air pressure sensor and the laser are electrically connected, and are both electrically connected to a computer through a wire 3 to achieve signal transmission and feedback control;

[0012] An air suction port is provided on the side of the negative pressure chamber, and the air suction port is connected to the oil separator through a pipeline; along the pipeline direction from the air suction port to the oil separator, an air suction pump and a recovery system electromagnetic valve are sequentially provided, and the air suction pump is electrically connected to the computer through a wire 1, and the recovery system electromagnetic valve is electrically connected to the computer through a wire 2, so as to realize signal transmission and feedback control;

[0013] The adsorption device is provided with an air inlet and an air outlet; the other end of the oil separator is connected to the drying filter through a pipeline; the other end of the drying filter is connected to the air inlet of the adsorption device in the pressure-resistant box through a pipeline; the air outlet of the adsorption device is connected to the pipeline at the upper end of the liquid storage tank through the bottom of the other side of the pressure-resistant box; the end of the liquid storage tank is also provided with an exhaust pipe and a liquid storage tank pressure sensor, and the liquid storage tank pressure sensor is electrically connected to the computer through a wire 4 to realize signal transmission and feedback control;

[0014] The side of the negative pressure chamber, i.e., the side corresponding to the position of the air extraction port, is also provided with a nitrogen gas delivery port and a nozzle, which are independent of each other, but both are connected to the refrigerant storage tank and the nitrogen storage tank in sequence through pipelines;

[0015] An adsorption device is provided at the bottom of the pressure-resistant box, and a condenser is provided above the adsorption device;

[0016] The interior of the adsorption device is divided into three chambers, namely, a first chamber, a second chamber and a third chamber; one side of the first chamber is the second chamber, and the two are parallel; the third chamber is below the first chamber and the second chamber; the first chamber is connected to the second chamber, and the first chamber is separated from the third chamber by a baffle, and the two are not connected to each other; the second chamber is separated from the third chamber by a baffle, but the two are connected to each other;

[0017] The first chamber has multiple groups of partition plates 1 alternately arranged inside, forming an "S"-shaped flow channel connected to the second chamber; the third chamber has multiple groups of partition plates 2 alternately arranged inside, forming an "S"-shaped flow channel connected to the second chamber;

[0018] The air inlet is arranged at one side of the first chamber; the air outlet is arranged at one side of the third chamber; the air inlet is communicated with the drying filter through a pipeline; the air outlet is communicated with the liquid storage tank through a pipeline.

[0019] Honeycomb amide polymer materials are distributed in the second chamber and the third chamber.

[0020] Preferably, the partition plate 1 is in a straight line shape, and the partition plate 2 is in a wavy shape; and the partition plate 1 is perpendicular to the bottom of the adsorption device, and the partition plate 2 is parallel to the bottom of the adsorption device.

[0021] Preferably, one side opening of the negative pressure chamber is designed to be flat.

[0022] Preferably, a rotating shaft is further provided at the connection between the nozzle and the side of the negative pressure chamber to control the rotation of the nozzle;

[0023] Preferably, the inner wall of the adsorption device is made of polytetrafluoroethylene, so as to reduce the adhesion of water mist to the inner wall of the adsorption device and improve the noise reduction ability of the spray.

[0024] Preferably, a condenser is provided above the adsorption device, and there is a certain distance between the two, specifically 10-20 cm.

[0025] The present invention also provides a working method of a refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system, and the specific steps are as follows:

[0026] Step 1: First, connect the opening of the negative pressure chamber to the skin surface, and control the vacuum pump to evacuate air through the computer output control signal. At this time, the negative pressure chamber forms a closed space on the skin surface, and the vacuum pump is turned off; then, the computer outputs a control signal to control the opening of the refrigerant solenoid valve. After the refrigerant solenoid valve is opened, the refrigerant stored in the refrigerant storage tank is transported to the nozzle through the pipeline and sprayed from the nozzle to the skin surface;

[0027] Step 2: After the refrigerant is sprayed for a period of time, the refrigerant solenoid valve is closed, and the computer controls the vacuum pump to start again, and the volatilized gas phase refrigerant is extracted from the vacuum port, and the negative air pressure in the negative pressure chamber is detected in real time by the air pressure sensor, and the detection data is transmitted to the computer, and the computer monitors the negative air pressure in the negative pressure chamber in real time;

[0028] Step 3: After a certain negative pressure is formed in the negative pressure chamber, after a period of time, open the nitrogen solenoid valve to allow it to pass through the pipeline and be output from the nitrogen gas inlet, correct the negative pressure in the negative pressure chamber, and further squeeze the remaining gas phase refrigerant into the air extraction port. When the pressure in the negative pressure chamber returns to normal atmospheric pressure, the air extraction pump is turned off and no gas enters or exits the air extraction port;

[0029] Step 4, the gaseous refrigerant passes through the air extraction port, the solenoid valve of the recovery system, the oil separator and the drying filter, and finally the unseparated gas enters the adsorption device through the pipeline from the air inlet; in the adsorption device, the gas first enters the first chamber, and the "S"-shaped flow channel set in the first chamber is conducive to slowing down the flow of the gas; then it enters the second chamber from the first chamber, and the honeycomb amide polymer material placed inside the second chamber performs the first adsorption, and after adsorption, it enters the third chamber, and the honeycomb amide polymer material placed inside the third chamber performs the second adsorption; due to the wavy partition plate 2 provided in the third chamber, the gas forms a vortex, which further slows down the gas flow rate and enhances the adsorption effect; the condenser maintains the temperature in the pressure-resistant box, and after the gas flows through the third chamber, it flows out from the air outlet, and then enters the liquid storage tank through the pipeline, and the gas after adsorption is finally discharged through the exhaust pipe.

[0030] Preferably, the refrigerant stored in the refrigerant storage tank in step one is any one of R134a, R404A, R410A or R32; the refrigerant solenoid valve is used to accurately control the input of the refrigerant, wherein the opening and closing time of the refrigerant solenoid valve is less than 6ms.

[0031] Preferably, the refrigerant spraying time in step 2 is 40 to 50 milliseconds.

[0032] Preferably, the negative pressure formed in step three is 0.03-0.05 MPa; and the interval is 3-5 seconds.

[0033] Preferably, the condenser in step 4 maintains the temperature inside the pressure-resistant box, specifically 0-4°C.

[0034] Beneficial effects of the present invention:

[0035] (1) The present invention provides a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system for laser skin surgery, so as to achieve the purpose of recovering and treating the refrigerant during the surgery and avoid dissipating it into the atmosphere and affecting the environment. At the same time, the system has a simple structure and is safe and reliable for long-term use.

[0036] (2) The recycling and processing system of the present invention has a good recycling and processing effect, and a pressure sensor is arranged in the system, which is electrically connected to a computer and can control and monitor the condition of the refrigerant in the pipeline in real time.

[0037] (3) The negative pressure of 0.03-0.05 MPa set in the negative pressure chamber of the present invention can not only achieve the purpose of sucking out residual refrigerant vapor, but also avoid discomfort to the patient.

[0038] (4) The amide polymer material filled in the pressure-resistant container of the present invention has a strong adsorption effect on Freon refrigerant. When Freon vapor passes through the closed container filled with amide, the mass and volume of the amide polymer material will increase several times. When the amide polymer material is placed in the atmosphere, it will return to its original state, has a strong desorption effect, and can be reused. In addition, the amide polymer has a good adsorption effect on Freon refrigerant and a high processing efficiency, and can effectively recover Freon refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the system of the present invention;

[0040] Figure 2 It is a structural schematic diagram of the adsorption device of the present invention;

[0041] Figure numerals: 1-refrigerant pressure gauge, 2-refrigerant solenoid valve, 3-nitrogen pressure gauge, 4-nitrogen solenoid valve, 5-refrigerant storage tank, 6-nitrogen storage tank, 7-computer, 8-liquid storage tank, 9-exhaust pipe, 10-adsorption device, 11-pressure box, 12-condenser, 13-drying filter, 14-oil separator, 15-recovery system solenoid valve, 16-vacuum pump, 17-air pressure sensor, 18-laser, 19-nitrogen gas inlet, 20-nozzle, 21-negative pressure chamber, 22-skin surface, 23-vacuum outlet, 24-second chamber, 25- Partition 1, 26-air inlet, 27-third chamber, 28-first chamber, 29-partition 2, 30-air outlet, 31-liquid storage tank pressure sensor, 1-1-wire 1, 1-2-wire 2, 1-3-wire 3, 1-4-wire 4, 1-5-wire 5. Specific implementation methods

[0042] The present invention will be further described below in conjunction with specific drawings and embodiments:

[0043] Embodiment 1:

[0044] The present invention provides a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system for laser skin surgery, such as Figure 1 As shown,

[0045] A refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system for laser skin surgery, comprising a spray system, a refrigerant recovery and treatment system and a computer 7;

[0046] The spray system includes a laser 18, an air pressure sensor 17, an air extraction port 23, a nitrogen gas delivery port 19, a negative pressure chamber 21, a nozzle 20, a refrigerant storage tank 5 and a nitrogen storage tank 6;

[0047] The refrigerant recovery and treatment system includes an air extraction pump 16 , a recovery system solenoid valve 15 , an oil separator 14 , a drying filter 13 , a condenser 12 , an adsorption device 10 , a pressure-resistant box 11 , a liquid storage tank 8 and a liquid storage tank pressure sensor 31 .

[0048] The end of the refrigerant storage tank 5 is provided with a refrigerant pressure gauge 1, and a refrigerant solenoid valve 2 for controlling the opening of the refrigerant pressure gauge 1 is also provided at the connection thereof; the end of the nitrogen storage tank 6 is provided with a nitrogen pressure gauge 3, and a nitrogen solenoid valve 4 for controlling the opening of the nitrogen pressure gauge 3 is also provided at the connection thereof; the refrigerant solenoid valve 2 and the nitrogen solenoid valve 4 are both electrically connected to the computer 7 through the wire 5 1-5 to realize signal transmission and feedback control;

[0049] The negative pressure chamber 21 is a hollow structure with an opening on one side, and the opening is a flat opening; the other side is connected to the air pressure sensor 17 and the laser 18, wherein the air pressure sensor 17 and the laser 18 are electrically connected, and are both electrically connected to the computer 7 through the wire three 1-3 to realize signal transmission and feedback control;

[0050] An air suction port 23 is provided on the side of the negative pressure chamber 21, and the air suction port 23 is connected to the oil separator 14 through a pipeline; along the pipeline direction from the air suction port 23 to the oil separator 14, an air suction pump 16 and a recovery system electromagnetic valve 15 are sequentially provided, and the air suction pump 16 is electrically connected to the computer 7 through a wire 1-1, and the recovery system electromagnetic valve 15 is electrically connected to the computer 7 through a wire 2 1-2, so as to realize signal transmission and feedback control;

[0051] The adsorption device 10 is provided with an air inlet 26 and an air outlet 30; the other end of the oil separator 14 is connected to the drying filter 13 through a pipeline; the other end of the drying filter 13 is connected to the air inlet 26 of the adsorption device 10 in the pressure-resistant box 11 through a pipeline; the air outlet 30 of the adsorption device 10 is connected to the upper end pipeline of the liquid storage tank 8 through the bottom of the other side of the pressure-resistant box 11; the end of the liquid storage tank 8 is also provided with an exhaust pipe 9 and a liquid storage tank pressure sensor 31, and the liquid storage tank pressure sensor 31 is electrically connected to the computer 7 through the wires 1-4 to realize signal transmission and feedback control;

[0052] The side of the negative pressure chamber 21, i.e., the side corresponding to the position of the air extraction port 23, is also provided with a nitrogen gas delivery port 19 and a nozzle 20, which are independent of each other, but are both connected to the refrigerant storage tank 5 and the nitrogen storage tank 6 in sequence through pipelines; wherein the connection between the nozzle 20 and the side of the negative pressure chamber 21 is also provided with a rotating shaft to control the rotation of the nozzle;

[0053] An adsorption device 10 is provided at the bottom of the pressure-resistant box 11 , and a condenser 12 is provided above the adsorption device 10 , wherein the condenser 12 is provided above the adsorption device 10 , and the distance between the two is 20 cm.

[0054] The top of the pressure-resistant box 11 is opened near the border, and the air inlet 26 is connected to the drying filter 13 pipeline through the small opening. At the same time, the bottom of the side of the pressure-resistant box 10 is opened, and the air outlet 30 is connected to the liquid storage tank 8 pipeline through the small opening;

[0055] like Figure 2 As shown, the interior of the adsorption device 10 is divided into three chambers, namely, a first chamber 28, a second chamber 24 and a third chamber 27; one side of the first chamber 28 is the second chamber 24, and the two are parallel; the third chamber 27 is below the first chamber 28 and the second chamber 24; the first chamber 28 is connected to the second chamber 24, and the first chamber 28 is separated from the third chamber 27 by a baffle, and the two are not connected to each other; the second chamber 24 is separated from the third chamber 27 by a baffle, but the two are connected to each other;

[0056] The first chamber 28 is provided with four groups of linear partitions 25 alternately therein, forming an S-shaped flow channel connected to the second chamber 24; the third chamber 27 is provided with wavy partitions 29 alternately therein, forming an S-shaped flow channel connected to the second chamber 24; wherein the partitions 25 are perpendicular to the bottom of the adsorption device 10, and the partitions 29 are parallel to the bottom of the adsorption device 10.

[0057] The air inlet 26 is arranged at one side of the first chamber 28; the air outlet 30 is arranged at one side of the third chamber 27; the air inlet 26 is connected to the drying filter 13 through a pipeline; the air outlet 30 is connected to the liquid storage tank 8 through a pipeline.

[0058] Honeycomb amide polymer materials are distributed in the second chamber 24 and the third chamber 27 .

[0059] A working method of a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system for laser skin surgery, the specific steps are as follows:

[0060] Step 1: First, the opening of the negative pressure chamber 21 is connected to the skin surface, and the computer 7 outputs a control signal to control the vacuum pump 16 to perform vacuuming. At this time, the negative pressure chamber 21 forms a closed space on the skin surface, and the vacuum pump 16 is closed; then the computer 7 outputs a control signal to control the opening of the refrigerant solenoid valve 2. After the refrigerant solenoid valve 2 is opened, the refrigerant R134a stored in the refrigerant storage tank 5 is transported to the nozzle 20 through a pipeline, and is sprayed by the nozzle 20 to the skin surface; wherein the refrigerant solenoid valve 2 is used to accurately control the input of the refrigerant, and the opening and closing time of the refrigerant solenoid valve is less than 6ms;

[0061] Step 2: After 50 milliseconds, the refrigerant solenoid valve 2 is closed, and the computer 7 controls the vacuum pump 16 to start again, and the volatilized gas phase refrigerant is extracted from the vacuum port 23. Under the detection of the air pressure sensor 17, the negative pressure in the negative pressure chamber 21 is monitored in real time by the computer 7;

[0062] Step 3: After forming a negative pressure of 0.05 MPa, open the nitrogen solenoid valve 4 for 4 seconds to allow the nitrogen to pass through the pipeline and be output from the nitrogen gas inlet 19, correct the negative pressure in the negative pressure chamber 21, and further squeeze the residual gas phase refrigerant into the suction port 23. When the pressure in the negative pressure chamber returns to normal atmospheric pressure, the suction pump 16 is closed and no gas enters or exits the suction port 23. The negative pressure is set to 0.05 MPa, which can achieve the purpose of sucking out the residual refrigerant vapor and avoid discomfort to the patient.

[0063] Step 4, the gaseous refrigerant passes through the recovery system solenoid valve 15, the oil separator 14 and the drying filter 13, and the unseparated gas passes through the pipeline. The gas enters the adsorption device 10 from the air inlet 26, and the condenser maintains the temperature in the pressure box at 0-4°C. At the same time, there is a gap of 10-20cm between the pressure box body and the adsorption device. The gas first enters the first chamber 28, because the "S"-shaped flow channel of the first chamber 28 achieves the purpose of slowing down the flow of gas, and then enters the second chamber 24 from the first chamber 28 for the first adsorption, and enters the third chamber 27 for the second adsorption after adsorption. Since the third chamber 27 is provided with a wavy partition 29, the gas forms a vortex, which further slows down the gas flow rate and enhances the adsorption effect; the condenser 12 maintains the temperature in the pressure box 11, and the gas flows through the third chamber 27 and finally flows out from the air outlet 30, and then enters the liquid storage tank 8 through the pipeline, and the harmless gas without greenhouse effect will be discharged from the exhaust pipe 9. The present invention fills the pressure-resistant container with amide polymer materials, which have a strong adsorption effect on Freon refrigerants. When Freon vapor passes through the closed container filled with amide, the mass and volume of the amide polymer materials will increase several times, and when the amide polymer materials are placed in the atmosphere, they will return to their original state, have a strong desorption effect, and can be reused. In addition, the amide polymer has a good adsorption effect on Freon refrigerants, high processing efficiency, and can effectively recover Freon refrigerants.

[0064] In summary, the present invention provides a refrigerant spray-assisted epidermal cooling, refrigerant recovery and treatment system for laser skin surgery, so as to achieve the purpose of recovering and treating the refrigerant during the operation and avoiding its dissipation into the atmosphere and affecting the environment; the operation is convenient, safe and environmentally friendly.

[0065] Note: The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above embodiments, a person skilled in the art should understand that the present invention can still be modified or replaced by equivalents; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system, characterized in that: Includes spray system, refrigerant recovery and treatment system and computer (7); The spray system comprises a laser (18), an air pressure sensor (17), an air extraction port (23), a nitrogen gas supply port (19), a negative pressure chamber (21), a spray head (20), a refrigerant storage tank (5), and a nitrogen storage tank (6); The refrigerant recovery and treatment system comprises an air extraction pump (16), a recovery system solenoid valve (15), an oil separator (14), a drying filter (13), a condenser (12), an adsorption device (10), a pressure-resistant box (11), a liquid storage tank (8), and a liquid storage tank pressure sensor (31); The end of the refrigerant storage tank (5) is provided with a refrigerant pressure gauge (1), and a refrigerant solenoid valve (2) for controlling the opening of the refrigerant pressure gauge (1) is also provided at the connection point of the refrigerant pressure gauge (1); the end of the nitrogen storage tank (6) is provided with a nitrogen pressure gauge (3), and a nitrogen solenoid valve (4) for controlling the opening of the nitrogen pressure gauge (3) is also provided at the connection point of the nitrogen pressure gauge (3); the refrigerant solenoid valve (2) and the nitrogen solenoid valve (4) are both electrically connected to a computer (7) via a wire five (1-5) to achieve signal transmission and feedback control; The negative pressure chamber (21) is a hollow structure with an opening on one side, and is connected to an air pressure sensor (17) and a laser (18) on the other side, wherein the air pressure sensor (17) and the laser (18) are electrically connected, and are both electrically connected to a computer (7) via a third wire (1-3) to achieve signal transmission and feedback control; An air suction port (23) is provided on the side of the negative pressure chamber (21), and the air suction port (23) is connected to the oil separator (14) through a pipeline; an air suction pump (16) and a recovery system electromagnetic valve (15) are provided in sequence along the pipeline direction from the air suction port (23) to the oil separator (14); the air suction pump (16) is electrically connected to the computer (7) through a wire 1 (1-1), and the recovery system electromagnetic valve (15) is electrically connected to the computer (7) through a wire 2 (1-2), so as to realize signal transmission and feedback control; The adsorption device (10) is provided with an air inlet (26) and an air outlet (30); the other end of the oil separator (14) is connected to the drying filter (13) through a pipeline; the other end of the drying filter (13) is connected to the air inlet (26) of the adsorption device (10) in the pressure-resistant box (11) through a pipeline; the air outlet (30) of the adsorption device (10) is connected to the upper end pipeline of the liquid storage tank (8) through the bottom of the other side of the pressure-resistant box (11); the end of the liquid storage tank (8) is also provided with an exhaust pipe (9) and a liquid storage tank pressure sensor (31); the liquid storage tank pressure sensor (31) is electrically connected to the computer (7) through wire four (1-4) to realize signal transmission and feedback control; A nitrogen gas delivery port (19) and a nozzle (20) are also provided on the side of the negative pressure chamber (21), i.e., the side corresponding to the position of the gas extraction port (23). The two are independent of each other, but both are connected to the refrigerant storage tank (5) and the nitrogen storage tank (6) in sequence through pipelines; An adsorption device (10) is provided at the bottom of the pressure-resistant box (11), and a condenser (12) is provided above the adsorption device (10); The interior of the adsorption device (10) is divided into three chambers, namely a first chamber (28), a second chamber (24) and a third chamber (27); one side of the first chamber (28) is the second chamber (24), and the two are arranged side by side; the third chamber (27) is located below the first chamber (28) and the second chamber (24); the first chamber (28) is connected to the second chamber (24), and the first chamber (28) is separated from the third chamber (27) by a baffle plate, and the two are not connected to each other; the second chamber (24) is separated from the third chamber (27) by a baffle plate, but the two are connected to each other; The first chamber (28) is provided with a plurality of groups of partition plates 1 (25) alternately therein, forming an "S"-shaped flow channel connected to the second chamber (24); the third chamber (27) is provided with a plurality of groups of partition plates 2 (29) alternately therein, forming an "S"-shaped flow channel connected to the second chamber (24); The air inlet (26) is arranged on one side of the first chamber (28); the air outlet (30) is arranged on one side of the third chamber (27); the air inlet (26) is connected to the drying filter (13) through a pipeline; the air outlet (30) is connected to the liquid storage tank (8) through a pipeline; Honeycomb amide polymer material is distributed in the second chamber (24) and the third chamber (27); the partition plate 1 (25) is in a straight line shape, and the partition plate 2 (29) is in a wave shape; the partition plate 1 (25) is in a vertical state with the bottom of the adsorption device (10), and the partition plate 2 (29) is in a parallel state with the bottom of the adsorption device (10); A rotating shaft is also provided at the connection between the nozzle (20) and the side of the negative pressure chamber (21) so as to control the rotation of the nozzle.

2. A refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system according to claim 1, characterized in that: One side opening of the negative pressure chamber (21) is designed to be flat.

3. A refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system according to claim 1, characterized in that: The inner wall of the adsorption device (10) is made of polytetrafluoroethylene, so as to reduce the adhesion of water mist to the inner wall of the adsorption device (10) and improve the noise reduction capability of the spray.

4. A refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system according to claim 1, characterized in that: A condenser (12) is provided above the adsorption device (10), and there is a certain distance between the two, specifically 10-20 cm.

5. A method for operating a refrigerant spray-assisted skin cooling, refrigerant recovery and treatment system, characterized in that: The specific steps are as follows: Step 1: firstly, the opening of the negative pressure chamber (21) is connected to the skin surface, and the computer (7) outputs a control signal to control the vacuum pump (16) to perform vacuuming. At this time, the negative pressure chamber (21) forms a closed space on the skin surface, and the vacuum pump (16) is turned off; then, the computer (7) outputs a control signal to control the opening of the refrigerant solenoid valve (2). After the refrigerant solenoid valve (2) is opened, the refrigerant stored in the refrigerant storage tank (5) is transported to the nozzle (20) through the pipeline, and is sprayed onto the skin surface by the nozzle (20); Step 2: After the refrigerant has been sprayed for a period of time, the refrigerant solenoid valve (2) is closed, and at the same time, the computer (7) controls the vacuum pump (16) to be started again, and the volatilized gas phase refrigerant therein is extracted from the vacuum port (23), and the negative air pressure in the negative pressure chamber (21) is detected in real time through the air pressure sensor (17), and the detection data is transmitted to the computer (7), and the computer (7) monitors the negative air pressure in the negative pressure chamber (21) in real time; Step 3: After a certain negative pressure is formed in the negative pressure chamber (21), after a period of time, the nitrogen solenoid valve (4) is opened to allow the nitrogen to pass through the pipeline and be output from the nitrogen gas inlet (19), thereby correcting the negative pressure in the negative pressure chamber (21) and further squeezing the remaining gas phase refrigerant into the air extraction port (23). When the pressure in the negative pressure chamber returns to normal atmospheric pressure, the air extraction pump (16) is closed and no gas enters or exits the air extraction port (23); Step 4: The gaseous refrigerant passes through the air extraction port (23), the recovery system solenoid valve (15), the oil separator (14) and the drying filter (13), and finally the unseparated gas enters the adsorption device (10) through the pipeline and the air inlet (26); in the adsorption device (10), the gas first enters the first chamber (28), and the "S"-shaped flow channel set in the first chamber (28) is conducive to slowing down the flow of the gas; then, the gas enters the second chamber (24) from the first chamber (28), and the honeycomb amide polymer material placed inside the second chamber (24) is used for After the first adsorption, the gas enters the third chamber (27) and undergoes a second adsorption by the honeycomb amide polymer material placed inside the third chamber (27). Since the third chamber (27) is provided with a wavy partition plate 2 (29), the gas forms a vortex, further slowing down the gas flow rate and enhancing the adsorption effect. The condenser (12) maintains the temperature inside the pressure-resistant box (11). After the gas flows through the third chamber (27), it flows out from the gas outlet (30) and then enters the liquid storage tank (8) through the pipeline. The gas after the adsorption treatment is finally discharged through the exhaust pipe (9).

6. The working method according to claim 5, characterized in that: The refrigerant stored in the refrigerant storage tank (5) in step 1 is any one of R134a, R404A, R410A or R32; the refrigerant solenoid valve (2) is used to accurately control the input of the refrigerant, wherein the opening and closing time of the refrigerant solenoid valve is less than 6 ms.

7. The working method according to claim 5, characterized in that: The refrigerant spraying time in step 2 is 40-50 milliseconds; the negative pressure formed in step 3 is 0.03-0.05 MPa; and the interval time is 3-5 seconds.

8. The working method according to claim 5, characterized in that: The condenser (12) in step 4 maintains the temperature inside the pressure-resistant box (11), specifically 0-4°C.

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