CN211326040U - Portable medical cold and hot compress system - Google Patents
Portable medical cold and hot compress system Download PDFInfo
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- CN211326040U CN211326040U CN201922179214.0U CN201922179214U CN211326040U CN 211326040 U CN211326040 U CN 211326040U CN 201922179214 U CN201922179214 U CN 201922179214U CN 211326040 U CN211326040 U CN 211326040U
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Abstract
The utility model relates to a portable medical cold and hot compress system, which comprises a compressor, a condenser, a dry filter, a throttle mechanism, an evaporator, a heat storage tank, a first electromagnetic three-way valve, a circulating water pump, cold and hot compress equipment, a second electromagnetic three-way valve and a cold storage tank; the compressor, the condenser, the drying filter, the throttling mechanism and the evaporator are sequentially connected, and the evaporator is connected with the compressor to form a refrigerating system for circulating a refrigerant; the heat storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress device and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the heat storage tank to form a hot compress system for circulating a heat-carrying agent; the cold storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress equipment and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the cold storage tank to form a cold compress system for the circulation of secondary refrigerant. The utility model discloses simple structure, the system is stable, has cold and hot compress function simultaneously, belongs to low temperature medical treatment and recovered field.
Description
Technical Field
The utility model relates to a low temperature medical treatment and recovered field, concretely relates to portable medical cold and hot compress system.
Background
In the fields of competitive sports, orthopedic surgery, low-temperature medical treatment and the like, the local cold and hot compress of injured tissues can effectively relieve pain and swelling, reduce metabolic rate, delay nerve conduction and achieve the effects of diminishing inflammation, relieving pain and paralysis. In the traditional cold compress of the ice bag, the acute angle of an ice block is removed, the ice block is filled into the ice bag and then sealed, and then the ice bag is sleeved with a cloth sleeve and placed on a cold compress part; the inner bag of the soft hot compress bag is fixed at the hot compress position through the bandage during traditional hot compress, so that the hot compress function is realized.
The ice compress can promote local vasoconstriction, slow down the blood flow rate, reduce the permeability of capillary vessels, reduce the extravasation of tissue fluid, slow down local metabolism, effectively reduce the release of inflammatory mediators, reduce the local tissue temperature, constrict blood vessels, reduce subcutaneous bleeding, reduce tissue swelling, reduce the excitability of nerve endings, improve the pain threshold value and achieve the functions of relieving pain and reducing swelling. Therefore, the ice compress is usually applied to acute injuries, such as sprain, contusion, inflammation, muscle spasm or edema, and the effect is obvious.
The hot compress can increase the local body temperature, expand blood vessels, promote the local blood circulation, increase the body metabolism rate, promote the absorption of inflammation, eliminate tissue edema and promote the healing effect. Therefore, the ice compress is easy to be adopted within twenty-four hours after the injury, and the hot compress is easy to be adopted after forty-eight hours.
At present, when the traditional ice bag is used for cold compress, the temperature of the ice bag is gradually increased along with the lapse of cold compress time, ice blocks in the ice bag are gradually melted into water, and if the ice bag is not tightly sealed, water leakage is easily caused, and the problems of wound infection and the like are caused. Secondly, when the traditional ice bag is used for cold compress, the optimum temperature is about 6 ℃, the temperature of ice blocks is lower than 0 ℃, and the affected part is easily frozen when the ice blocks are directly contacted for a long time, so that the affected part is wrapped by a towel or cloth. The temperature should not be higher than 50 deg.C during hot compress to avoid scald.
In the prior art, a cold and hot compress system which is easy to control, small in temperature fluctuation and not easy to leak exists.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model aims at: provides a cold and hot compress system which is easy to control, has small temperature fluctuation and is not easy to leak.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a portable medical cold and hot compress system comprises a compressor, a condenser, a drying filter, a throttling mechanism, an evaporator, a heat storage tank, a first electromagnetic three-way valve, a circulating water pump, cold and hot compress equipment, a second electromagnetic three-way valve and a cold storage tank; the compressor, the condenser, the drying filter, the throttling mechanism and the evaporator are sequentially connected, and the evaporator is connected with the compressor to form a refrigerating system for circulating a refrigerant; the heat storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress device and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the heat storage tank to form a hot compress system for circulating a heat-carrying agent; the cold storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress equipment and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the cold storage tank to form a cold compress system for the circulation of secondary refrigerant; the refrigerant between the compressor and the condenser exchanges heat with the heat-carrying agent in the heat storage tank, and the refrigerant between the throttling mechanism and the evaporator exchanges heat with the secondary refrigerant in the cold storage tank.
Preferably, the heat storage tank is a liquid storage tank with a heat exchange function, or a structure combining a heat exchanger and the liquid storage tank; the cold storage tank is a liquid storage tank with a heat exchange function or a structure combining a heat exchanger and the liquid storage tank; when the structure that the heat exchanger is combined with the liquid storage tank is adopted, the heat exchanger is a shell-and-tube heat exchanger or a plate heat exchanger. The structure of combining the heat exchanger and the liquid storage tank means that the heat exchanger and the liquid storage tank are separated, the liquid storage tank only provides a liquid storage function, the heat exchanger only provides heat exchange, and the heat exchanger and the liquid storage tank are combined to form a heat storage or cold storage tank.
Preferably, the condenser is a finned tube heat exchanger or a wire tube heat exchanger; the evaporator is a finned tube type heat exchanger or a wire tube type heat exchanger; the throttling mechanism is a capillary tube, a pore plate throttling or an electromagnetic valve.
Preferably, the circulation loop of the hot compress system is provided with a one-way valve for reversely conveying the heat-carrying agent, and the circulation loop of the cold compress system is provided with a one-way valve for reversely conveying the secondary refrigerant; after the portable medical cold and hot compress system is shut down, the circulating water pump runs reversely to recycle the heat carrying agent or the secondary refrigerant of the cold and hot compress device back to the heat carrying tank or the cold carrying tank.
Preferably, the heat storage tank and the cold storage tank are both provided with heat insulation layers.
Preferably, the cold and hot laying equipment comprises a silica gel body, wherein a flow passage for a heat-carrying agent or a secondary refrigerant to pass through is arranged in the silica gel body; the runner includes export section, entry section, straightway and linkage segment, and the multistage straightway is parallel to each other, meets through the linkage segment between the adjacent straightway.
Preferably, a temperature sensor for measuring the temperature of the heat transfer agent is provided in the heat storage tank, and a temperature sensor for measuring the temperature of the coolant is provided in the cold storage tank.
Preferably, during hot compress, the start and stop of the compressor are only controlled by the temperature of the heat carrier in the heat storage tank; when the temperature of the heat-carrying agent in the heat storage tank reaches 50 ℃, the compressor is stopped to avoid scalding caused by overhigh temperature of the heat-carrying agent; and when the temperature of the heat-carrying agent is lower than 45 ℃, the compressor is started to avoid the phenomenon that the temperature of the heat-carrying agent is too low and the hot compress effect is lost.
Preferably, during cold compress, the start and stop of the compressor are only controlled by the temperature of the secondary refrigerant in the cold accumulation tank; when the temperature of the secondary refrigerant in the cold accumulation tank reaches 2 ℃, the compressor is stopped to avoid frostbite caused by too low temperature of the secondary refrigerant; and when the temperature of the secondary refrigerant is higher than 8 ℃, the compressor is started to avoid the phenomenon that the temperature of the secondary refrigerant is too high and the cold compress effect is lost.
Preferably, when the refrigeration system is operated, the heat-carrying agent in the heat storage tank absorbs the exhaust heat of the compressor, and part of heat is stored in the heat storage tank for hot compress while precooling of the high-temperature refrigerant is realized; the secondary refrigerant in the cold accumulation tank releases heat to the throttled low-temperature low-pressure refrigerant, so that the secondary refrigerant is cooled and accumulated for use in cold compress.
The principle of the utility model is that:
the system utilizes a heat storage tank and a cold storage tank to store the heat exhausted by a compressor of a refrigeration system and the cold of a throttled refrigerant through a liquid heat-carrying agent and a secondary refrigerant for use in cold compress and hot compress. When the system is in a hot compress cycle, the heat carrying agent in the heat storage tank enters the cold and hot compress device (serving as the hot compress device at the moment) through the second port and the first port of the electromagnetic three-way valve I and then enters the heat storage tank through the circulating pump, the contused part of the human tissue is subjected to hot compress, and then the heat carrying agent returns to the heat storage tank through the first port and the second port of the electromagnetic three-way valve II to complete the hot compress cycle. When the system is in a cold compress cycle, secondary refrigerant in the cold storage tank enters the cold and hot compress device (used as the cold compress device at the moment) through the third port and the first port of the first electromagnetic three-way valve and then enters the cold and hot compress device through the circulating pump to carry out cold compress on the sprain and contusion tissues of the human body, and then returns to the cold storage tank through the first port and the third port of the second electromagnetic three-way valve to complete the cold compress cycle. The heat and cold storage process of the hot compress and cold compress circulation is that when the system normally operates, the refrigerant is compressed by the compressor, and then sequentially passes through the heat storage tank, the condenser, the drying filter, the throttling mechanism, the cold storage tank and the evaporator and then returns to the air return port of the compressor to complete the refrigeration cycle, and simultaneously, the heat and cold storage process of the heat-carrying agent and the secondary refrigerant is completed.
In general, the utility model has the advantages as follows:
1. the system has simple structure, stable system, and cold and hot compress function, and can realize the effects of cooling, relieving pain and subsiding swelling of local tissue.
2. The temperature can be set and can be stabilized at an optimal cold compress and hot compress temperature for a long time.
3. The secondary refrigerant and the heat-carrying agent are adopted for internal circulation, so that the external leakage is not easy to cause, and the storage is easy.
4. The compressor is adopted to provide heat and cold for the heat-carrying agent and the secondary refrigerant, thereby being efficient and energy-saving.
5. The cold and hot compress device adopts a flow channel structure, preferably a flat micro flow channel, and is in close contact with the skin to improve the cold and hot compress effect.
6. The temperature sensors are arranged in the heat storage tank and the cold storage tank, the temperature during hot compress and cold compress circulation is controlled through the measured temperature of the sensors, the temperature fluctuation of the heat carrying agent and the secondary refrigerant during hot compress and cold compress circulation is reduced, and the temperature can also be controlled.
7. The cold compress system and the hot compress system are respectively provided with a one-way valve, and the circulating water pump runs reversely to recover the secondary refrigerant or the heat-carrying agent in the cold compress and hot compress device into the cold storage tank or the heat storage tank so as to avoid frequently supplementing the secondary refrigerant or the heat-carrying agent.
Drawings
Fig. 1 is a schematic structural view of a portable medical cold and hot compress system.
Fig. 2 is a diagram of a refrigeration cycle of a portable medical hot and cold compress system.
Fig. 3 is a view showing a hot compress cycle of a portable medical cold and hot compress system.
Fig. 4 is a cold compress cycle diagram of a portable medical cold compress system.
Fig. 5 is a schematic view of the structure of the cold-hot compress device.
Wherein, 1 is the compressor, 2 is the condenser, 3 is the drier-filter, 4 is the throttle mechanism, 5 is the evaporimeter, 6 is the heat accumulation jar, 7 is the cold accumulation jar, 8 is the first of electromagnetism three-way valve, 9 is circulating water pump, 10 is cold and hot compress equipment, 11 is the second of electromagnetism three-way valve, 12 is the first of electromagnetism three-way valve, 13 is the second of electromagnetism three-way valve, 14 is the third of electromagnetism three-way valve, 15 is the first of electromagnetism three-way valve, 16 is the second of electromagnetism three-way valve, 17 is the third of electromagnetism three-way valve, 18 is the check valve, 19 is export section and entry section, 20 is the straightway, 21 is the linkage segment.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
A portable medical cold and hot compress system comprises a compressor, a condenser, a drying filter, a throttling mechanism, an evaporator, a heat storage tank, a first electromagnetic three-way valve, a circulating water pump, cold and hot compress equipment, a second electromagnetic three-way valve and a cold storage tank; the device also comprises two one-way valves; two temperature sensors are also included.
The compressor, the condenser, the drying filter, the throttle mechanism and the evaporator are connected in sequence, and the evaporator is connected with the compressor to form a refrigerating system for circulating the refrigerant. The refrigerant between the compressor and the condenser exchanges heat with the heat-carrying agent in the heat storage tank, and the refrigerant between the throttling mechanism and the evaporator exchanges heat with the secondary refrigerant in the cold storage tank.
The heat storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress device and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the heat storage tank to form a hot compress system for circulating a heat carrying agent. The circulation loop of the hot compress system is provided with a one-way valve for reversely conveying the heat carrying agent.
The cold storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress equipment and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the cold storage tank to form a cold compress system for the circulation of secondary refrigerant. The circulation loop of the cold compress system is provided with a one-way valve for reversely conveying the secondary refrigerant.
The heat storage tank is a liquid storage tank with a heat exchange function. The cold storage tank is a liquid storage tank with a heat exchange function. The condenser is a finned tube heat exchanger. The evaporator is a finned tube heat exchanger. The throttling mechanism is a capillary tube. The heat storage tank and the cold storage tank are both provided with heat insulation layers. The cold and hot laying equipment comprises a silica gel body, wherein a flow passage for a heat-carrying agent or a secondary refrigerant to pass through is arranged in the silica gel body; the runner includes export section, entry section, straightway and linkage segment, and the multistage straightway is parallel to each other, meets through the linkage segment between the adjacent straightway. A temperature sensor for measuring the temperature of the heat-carrying agent is arranged in the heat storage tank, and a temperature sensor for measuring the temperature of the secondary refrigerant is arranged in the cold storage tank. And the hot compress system and the cold compress system are selected by switching on and off the electromagnetic three-way valve I and the electromagnetic three-way valve II. The heat-carrying agent is preferably water, and the refrigerating medium is preferably absolute alcohol.
When the system normally operates, high-temperature and high-pressure exhaust gas of the compressor exchanges heat with a heat-carrying agent in the heat storage tank, so that preliminary precooling of a refrigerant is realized, and meanwhile, the heat-carrying agent realizes a heat storage function; then, after the incompletely condensed refrigerant is condensed by the condenser, the incompletely condensed refrigerant passes through the drying filter and is throttled by the throttling mechanism, and the refrigerant in the cold storage tank is evaporated to exchange heat with the secondary refrigerant in the tank, so that the temperature of the secondary refrigerant is reduced to realize the cold storage function; and finally, the incompletely evaporated refrigerant is subjected to secondary evaporation in the evaporator and then returns to the compressor, so that the system realizes a complete refrigeration cycle and a heat and cold storage cycle.
In the hot compress circulation, a heat carrying agent in the heat storage tank is pumped to cold and hot laying equipment (used as hot compress equipment at the moment) through a second port and a first port of the electromagnetic three-way valve I by a circulating water pump, and returns to the heat storage tank through the first port and the second port of the electromagnetic three-way valve II after the hot compress is carried out on the human body contusion tissues, so that the hot compress circulation is completed.
In the cold compress circulation, the secondary refrigerant in the cold storage tank is pumped to cold and hot laying equipment (used as cold compress equipment at the moment) through the third port and the first port of the first electromagnetic three-way valve by a circulating water pump, and returns to the cold storage tank through the first port and the third port of the second electromagnetic three-way valve after cold compress is performed on human body sprain and contusion tissues, so that the cold compress circulation is completed.
In the whole system, three cycles of refrigeration cycle, cold compress cycle and hot compress cycle are mutually independent, when the temperatures in the heat storage tank and the cold storage tank reach set values, the compressor is started or stopped, but at the moment, the hot compress or cold compress cycle still continuously operates; when hot compress and cold compress are completed, the system is closed, the circulating water pump is reversed, and secondary refrigerant or heat-carrying agent in the cold compress circulation or hot compress circulation loop is recovered into the cold storage tank or the heat storage tank.
During hot compress circulation, when the temperature of a heat carrying agent in the heat storage tank reaches 50 ℃, the compressor stops working, and when the temperature of the heat carrying agent is lower than 45 ℃, the compressor is started; during cold compress circulation, when the temperature of the secondary refrigerant in the cold accumulation tank reaches 2 ℃, the compressor stops working, and when the temperature of the secondary refrigerant is higher than 8 ℃, the compressor is restarted. The start and stop of the circulating water pump are controlled by the hot compress circulation time or the cold compress circulation time.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (7)
1. The utility model provides a portable medical cold and hot compress system which characterized in that: the system comprises a compressor, a condenser, a drying filter, a throttling mechanism, an evaporator, a heat storage tank, a first electromagnetic three-way valve, a circulating water pump, cold and hot compress equipment, a second electromagnetic three-way valve and a cold storage tank;
the compressor, the condenser, the drying filter, the throttling mechanism and the evaporator are sequentially connected, and the evaporator is connected with the compressor to form a refrigerating system for circulating a refrigerant;
the heat storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress device and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the heat storage tank to form a hot compress system for circulating a heat-carrying agent;
the cold storage tank, the first electromagnetic three-way valve, the circulating water pump, the cold and hot compress equipment and the second electromagnetic three-way valve are sequentially connected, and the second electromagnetic three-way valve is connected into the cold storage tank to form a cold compress system for the circulation of secondary refrigerant;
the refrigerant between the compressor and the condenser exchanges heat with the heat-carrying agent in the heat storage tank, and the refrigerant between the throttling mechanism and the evaporator exchanges heat with the secondary refrigerant in the cold storage tank.
2. A portable medical cold-hot compress system according to claim 1, wherein: the heat storage tank is a liquid storage tank with a heat exchange function or a structure combining a heat exchanger and the liquid storage tank; the cold storage tank is a liquid storage tank with a heat exchange function or a structure combining a heat exchanger and the liquid storage tank; when the structure that the heat exchanger is combined with the liquid storage tank is adopted, the heat exchanger is a shell-and-tube heat exchanger or a plate heat exchanger.
3. A portable medical cold-hot compress system according to claim 1, wherein: the condenser is a finned tube type heat exchanger or a wire tube type heat exchanger; the evaporator is a finned tube type heat exchanger or a wire tube type heat exchanger; the throttling mechanism is a capillary tube, a pore plate throttling or an electromagnetic valve.
4. A portable medical cold-hot compress system according to claim 1, wherein: the circulation loop of the hot compress system is provided with a one-way valve for reversely conveying the heat carrying agent, and the circulation loop of the cold compress system is provided with a one-way valve for reversely conveying the secondary refrigerant.
5. A portable medical cold-hot compress system according to claim 1, wherein: the heat storage tank and the cold storage tank are both provided with heat insulation layers.
6. A portable medical cold-hot compress system according to claim 1, wherein: the cold and hot laying equipment comprises a silica gel body, wherein a flow passage for a heat-carrying agent or a secondary refrigerant to pass through is arranged in the silica gel body; the runner includes export section, entry section, straightway and linkage segment, and the multistage straightway is parallel to each other, meets through the linkage segment between the adjacent straightway.
7. A portable medical cold-hot compress system according to claim 1, wherein: a temperature sensor for measuring the temperature of the heat-carrying agent is arranged in the heat storage tank, and a temperature sensor for measuring the temperature of the secondary refrigerant is arranged in the cold storage tank.
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| CN201922179214.0U CN211326040U (en) | 2019-12-09 | 2019-12-09 | Portable medical cold and hot compress system |
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| CN110772374A (en) * | 2019-12-09 | 2020-02-11 | 电子科技大学中山学院 | Portable medical cold and hot compress system |
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| CN110772374A (en) * | 2019-12-09 | 2020-02-11 | 电子科技大学中山学院 | Portable medical cold and hot compress system |
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Effective date of registration: 20221031 Address after: 528400 One of the money zones in Yakou Village, Nanlang Town, Zhongshan City, Guangdong Province Patentee after: Guangdong savis Refrigeration Technology Co.,Ltd. Address before: 528400, Xueyuan Road, 1, Shiqi District, Guangdong, Zhongshan Patentee before: University OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA, ZHONGSHAN INSTITUTE |
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