Ultralow-temperature cold bath treatment equipment based on air expansion refrigeration

Abstract

The utility model discloses an ultralow temperature cold bath treatment device based on air expansion refrigeration, which comprises a cold bath treatment system and an air expansion refrigeration system, and the cold bath treatment system comprises a deep hypothermia cold cabin, a medium and low temperature cold cabin, a low temperature cold cabin and a rest room; valves I are arranged at air supply ports of the rest room, the low-temperature cold cabin, the medium-low-temperature cold cabin and the deep-low-temperature cold cabin; the air expansion refrigeration system comprises a compressor, a heat exchanger, a heat regenerator and an expansion machine; an outlet of the compressor sequentially communicates with the heat exchanger, a first inlet of the heat regenerator, the expansion machine and an inlet of the first valve. Exhaust ports of the rest room, the low-temperature cold cabin, the medium-low-temperature cold cabin and the deep-low-temperature cold cabin are sequentially connected with a second inlet of the heat regenerator and an inlet of the compressor; the opening degree of the first valve is adjusted through the control system, the air flow entering the cold bath treatment system is changed, and it is guaranteed that the environment temperature of cold therapy meets the requirement. The cooled air is directly fed into the cold therapy cabin, the heat energy of the system is recycled, the cost is low, and the comprehensive performance coefficient is high.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature physiotherapy, in particular to ultra-low-temperature cold bath treatment equipment based on air expansion refrigeration. Background Art

[0002] Cryotherapy is a treatment method that uses low temperatures to achieve therapeutic effects. The user is exposed to a specific ambient temperature, and the low temperature stimulates the body's stress mechanism, stimulates natural healing ability, and enhances the body's immune function. Existing cryotherapy uses liquid nitrogen evaporation refrigeration and vapor compression refrigeration to provide low temperatures for the cold therapy chamber; among them, liquid nitrogen refrigeration has high costs, and long-term use will change the composition of the air, resulting in a decrease in the oxygen content of the cold therapy environment, affecting the health of the user; in order to meet the requirements of deep low temperature physiotherapy, vapor compression refrigeration often requires multi-stage cascading, which is complex in structure and has the potential safety hazard of refrigerant leakage. Utility Model Content

[0003] The utility model is to overcome the shortcomings of the above-mentioned prior art and provide an ultra-low temperature cold bath treatment device based on air expansion refrigeration, so as to solve the problems of high cost, low system comprehensive performance coefficient and easy leakage leading to environmental pollution of the refrigeration method adopted in the existing cryotherapy.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] The ultra-low temperature cold bath therapy equipment based on air expansion refrigeration comprises a cold bath therapy system and an air expansion refrigeration system. The cold bath therapy system comprises mutually independent deep low temperature cold chamber, medium low temperature cold chamber, low temperature cold chamber and rest room. Valve 1 is provided at the air supply port of the rest room, low temperature cold chamber, medium low temperature cold chamber and deep low temperature cold chamber. The air expansion refrigeration system comprises a compressor, a heat exchanger, a regenerator and an expander. The outlet of the compressor is connected to the first inlet of the heat exchanger, the regenerator and the inlet of the expander in sequence. The outlet of the expander is connected to the inlet of valve 1. The exhaust ports of the rest room, low temperature cold chamber, medium low temperature cold chamber and deep low temperature cold chamber are connected to the second inlet of the regenerator and the inlet of the compressor in sequence. Valve 1 is electrically connected to the control system. The control system adjusts the opening of valve 1 to change the ambient temperature in the cold bath therapy system.

[0006] Furthermore, the heat exchanger is an air-cooled fin heat exchanger.

[0007] Furthermore, the hot side of the heat exchanger is connected between the outlet of the compressor and the first inlet of the regenerator; the cold side inlet of the heat exchanger is connected to an external cold water device, and the cold side outlet of the heat exchanger is connected to the hot water supply pipe of the lounge.

[0008] Furthermore, the exhaust ports of the lounge, the low-temperature cold chamber, the medium-low-temperature cold chamber, and the deep-low-temperature cold chamber are all provided with a one-way valve, and the outlet of the one-way valve is connected to the second inlet of the regenerator.

[0009] Furthermore, a connecting pipe is provided between the second inlet of the regenerator and the outlet of the expander, and a second valve for controlling on-off is provided on the connecting pipe.

[0010] Furthermore, cameras, emergency stop buttons and emergency telephones are installed in the lounge, low-temperature cold chamber, medium-low-temperature cold chamber and deep-low-temperature cold chamber respectively.

[0011] The utility model has the following beneficial effects:

[0012] 1. Ultra-low temperature cold bath therapy equipment based on air expansion refrigeration includes a cold bath therapy system and an air expansion refrigeration system. The cold bath therapy system is equipped with independent deep low temperature cold chambers, medium and low temperature cold chambers, low temperature cold chambers, and rest rooms. The air expansion refrigeration system is equipped with compressors, heat exchangers, regenerators, and expanders. Air circulates in the air expansion refrigeration system. The air inlet and outlet of the cold bath therapy system are connected between the outlet of the expander and the inlet of the regenerator, so that low temperature air enters the cold chambers with different temperature requirements for cold bath therapy. Using low temperature air to create a low temperature environment has low refrigeration costs, high efficiency of air expansion refrigeration, no problems of frosting or refrigerant leakage, and reliable equipment operation.

[0013] 2. Connect the cold side inlet of the heat exchanger of the refrigeration system to external cold water, and the high-temperature air at the outlet of the compressor enters the hot side of the heat exchanger and exchanges heat with the cold water for cooling; connect the cold side outlet of the heat exchanger to the hot water supply pipe of the lounge to recover the heat energy of the refrigeration system, provide the lounge with hot water for washing and heating, and meet the heating needs of users.

[0014] 3. Install cameras, emergency stop buttons, and emergency telephones in the lounge, low-temperature cold chamber, medium-low-temperature cold chamber, and deep-low-temperature cold chamber; in an emergency, it is convenient for users to quickly cut off the low-temperature air, facilitate information communication between the outside world and the users, and improve the safety of the cold bath treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is the system principle diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cold bath treatment system of the utility model;

[0018] In the figure, 101, deep low temperature cold chamber; 102, medium and low temperature cold chamber; 103, low temperature cold chamber; 104, rest room; 105, valve one; 106, compressor; 107, heat exchanger; 108, regenerator; 109, expander; 110, one-way valve; 111, valve two. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0020] like Figure 1-2 As shown, the utility model provides an ultra-low temperature cold bath treatment device based on air expansion refrigeration, including a cold bath treatment system and an air expansion refrigeration system. The cold bath treatment system includes a deep low temperature cold chamber 101, a medium low temperature cold chamber 102, a low temperature cold chamber 103, and a rest room 104 that are independent of each other; a valve 105 is provided at the air supply port of the rest room 104, the low temperature cold chamber 103, the medium low temperature cold chamber 102, and the deep low temperature cold chamber 101; the air expansion refrigeration system includes a compressor 106, a heat exchanger 107, a regenerator 108, and an expander 109; the compressor 106 is connected to the heat exchanger 107, the heat exchanger 108, and the ... The outlet of the compressor 106 is connected to the heat exchanger 107, the first inlet of the regenerator 108, and the inlet of the expander 109 in sequence; the outlet of the expander 109 is connected to the inlet of the valve 105 through a branch pipe; the exhaust ports of the lounge 104, the low-temperature cold chamber 103, the medium-low-temperature cold chamber 102, and the deep-low-temperature cold chamber 101 are connected to the second inlet of the regenerator 108 and the inlet of the compressor 106 in sequence through branch pipes; the valve 105 is electrically connected to the control system, and the control system adjusts the opening of the valve 105 to change the ambient temperature in the cold bath therapy system.

[0021] Temperature measuring modules are installed in the lounge 104, the low-temperature cold chamber 103, the medium-low-temperature cold chamber 102, and the deep-low-temperature cold chamber 101 respectively. The temperature measuring modules are connected to the control system by electrical signals. The temperature measuring modules monitor the temperature changes in the cold bath therapy system in real time. The control system controls the opening of valve 105 and adjusts the low-temperature air flow rate according to the real-time temperature feedback to keep the temperature in the cold bath therapy system at a predetermined temperature.

[0022] It can be understood that in summer, valve 105 controlling the air supply port of rest room 104 is opened, and low-temperature air enters rest room 104 for cooling, thereby forming a suitable rest environment; by adjusting the opening of valve 105, the temperature can be controlled according to the actual needs of the user.

[0023] The operation process of the cold bath therapy system and air expansion refrigeration system is as follows:

[0024] S1. First, the compressor 106 and the expander 109 are running. The high-temperature air at the outlet of the compressor 106 is cooled and depressurized by the heat exchanger 107, the regenerator 108, and the expander 109. The low-temperature air from the expander 109 enters the cold bath treatment system to cool down the ambient air.

[0025] S2. The user enters the low temperature cold chamber 103, the medium and low temperature cold chamber 102, and the deep low temperature cold chamber 101 as needed, and the user is exposed to the cold air environment for cold bath treatment; specifically, the user enters the low temperature cold chamber 103 and the medium and low temperature cold chamber 102 respectively to initially adapt to the low temperature, and gradually removes the moisture retained on the body surface at different ambient temperatures; then enters the deep low temperature cold chamber 101 for cold bath treatment; the control system monitors the ambient temperature in the cold bath treatment system in real time, and changes the air flow by adjusting the opening of valve 105 to ensure the effect of cold bath treatment;

[0026] S3. The user finally enters the rest room 104 and acclimates to a suitable ambient temperature for recovery.

[0027] The low-temperature air in the air expansion refrigeration system directly enters the different rooms of the cold bath therapy system for heat exchange, so no additional heat exchange equipment is required, there will be no frost problem, and the equipment is economical.

[0028] As a specific implementation, the heat exchanger 107 is an air-cooled fin heat exchanger. The high-temperature air from the compressor 106 is cooled by heat exchange with ambient air.

[0029] The heat exchanger 107 can also use a cooling medium for heat exchange, which is specifically implemented as follows: the hot side of the heat exchanger 107 is connected between the outlet of the compressor 106 and the first inlet of the regenerator 108; the cold side inlet of the heat exchanger 107 is connected to an external cold water device, and the cold side outlet of the heat exchanger 107 is connected to the hot water supply pipe of the rest room 104. The high-temperature air from the compressor 106 enters the heat exchanger 107 to heat the external cold water, and after its own temperature is reduced, it enters the regenerator 108 and the expander 109; the hot water flows from the cold side outlet of the heat exchanger 107 to the rest room 104, supplying the rest room 104 with hot water for washing and heating all year round.

[0030] Compared with the steam compression refrigeration and liquid nitrogen evaporation refrigeration used in existing cryotherapy, this equipment uses air expansion refrigeration, which is safe, environmentally friendly, energy-saving and efficient. It recycles and reuses the heat energy of the air expansion refrigeration system, improves the overall performance coefficient, and meets the user's heat needs during cold bath therapy.

[0031] The exhaust ports of the rest room 104, the low temperature cold chamber 103, the medium and low temperature cold chamber 102, and the deep low temperature cold chamber 101 are all provided with a check valve 110, and the outlet of the check valve 110 is connected to the second inlet of the regenerator 108. The set check valve 110 allows the air to flow in one direction in the cold bath treatment system, effectively preventing the air in the cold bath treatment system from flowing back to the air expansion refrigeration system, affecting the refrigeration efficiency.

[0032] A connecting pipe is provided between the second inlet of the regenerator 108 and the outlet of the expander 109, and a second valve 111 for controlling the on-off is provided on the connecting pipe. The control system is electrically connected to the second valve 111 to control and adjust the opening of the second valve 111. The second valve 111 plays a bypass adjustment role to adjust the total air flow entering the cold bath treatment system.

[0033] Cameras, emergency stop buttons, and emergency telephones are installed in the rest room 104, low-temperature cold chamber 103, medium-low-temperature cold chamber 102, and deep-low-temperature cold chamber 101. The emergency stop button, control system, and valve 1 are interlocked. The user can quickly close valve 1 through the emergency stop button to block the entry of low-temperature air; the user can maintain information communication with the outside world through the emergency phone; external staff can obtain the real-time situation of the user through the camera. The installed cameras, emergency stop buttons, and emergency telephones greatly improve the safety of the cold bath treatment process.

[0034] The above is a preferred embodiment of the present invention, and the description of the specific embodiment is only used to better understand the concept of the present invention. For ordinary technicians in this technical field, several improvements or equivalent substitutions can be made according to the principle of the present invention, and these improvements or equivalent substitutions are also considered to fall within the protection scope of the present invention.

Claims

1. Ultra-low temperature cold bath treatment equipment based on air expansion refrigeration, characterized in that: The invention comprises a cold bath treatment system and an air expansion refrigeration system. The cold bath treatment system comprises a deep low temperature cold chamber (101), a medium low temperature cold chamber (102), a low temperature cold chamber (103), and a rest room (104) which are independent of each other. A valve (105) is provided at the air supply ports of the rest room (104), the low temperature cold chamber (103), the medium low temperature cold chamber (102), and the deep low temperature cold chamber (101). The air expansion refrigeration system comprises a compressor (106), a heat exchanger (107), a regenerator (108), and an expander (109). The outlet of the compressor (106) is arranged according to the air supply ports of the rest room (104), the low temperature cold chamber (103), the medium low temperature cold chamber (102), and the deep low temperature cold chamber (101). The first inlet of the heat exchanger (107), the regenerator (108), and the inlet of the expander (109) are connected in sequence; the outlet of the expander (109) is connected to the inlet of the valve one (105); the exhaust ports of the rest room (104), the low-temperature cold chamber (103), the medium-low-temperature cold chamber (102), and the deep-low-temperature cold chamber (101) are connected in sequence to the second inlet of the regenerator (108) and the inlet of the compressor (106); the valve one (105) is electrically connected to the control system, and the control system adjusts the opening of the valve one (105) to change the ambient temperature in the cold bath treatment system.

2. The ultra-low temperature cold bath treatment equipment based on air expansion refrigeration according to claim 1, characterized in that: The heat exchanger (107) is an air-cooled fin heat exchanger.

3. The ultra-low temperature cold bath treatment equipment based on air expansion refrigeration according to claim 1, characterized in that: The hot side of the heat exchanger (107) is connected between the outlet of the compressor (106) and the first inlet of the heat regenerator (108); the cold side inlet of the heat exchanger (107) is connected to an external cold water device, and the cold side outlet of the heat exchanger (107) is connected to a hot water supply pipe of the rest room (104).

4. The ultra-low temperature cold bath treatment equipment based on air expansion refrigeration according to claim 3, characterized in that: The exhaust ports of the rest room (104), the low-temperature cold chamber (103), the medium-low-temperature cold chamber (102), and the deep-low-temperature cold chamber (101) are all provided with a one-way valve (110), and the outlet of the one-way valve (110) is connected to the second inlet of the regenerator (108).

5. The ultra-low temperature cold bath treatment equipment based on air expansion refrigeration according to claim 4, characterized in that: A connecting pipe is provided between the second inlet of the regenerator (108) and the outlet of the expander (109), and a second valve (111) for controlling on and off is provided on the connecting pipe.

6. The ultra-low temperature cold bath treatment equipment based on air expansion refrigeration according to claim 1, characterized in that: The lounge (104), the low-temperature cold chamber (103), the medium-low-temperature cold chamber (102), and the deep-low-temperature cold chamber (101) are respectively equipped with a camera, an emergency stop button, and an emergency telephone.

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