Cooling and heating integrated system with refrigerant recovery function

Abstract

The utility model discloses a cold and hot integrated system with a refrigerant recovery function, which belongs to the technical field of cold and hot water exchange treatment and comprises a central control module. The central control module is connected with a flow adjusting module used for adjusting the water inlet amount of cold water, a multi-stage filtering module used for filtering impurities in water, a temperature control module used for achieving cold and heat exchange and a refrigerant circulating module used for detecting and recycling refrigerants. By means of the mode, detection and multi-stage filtration of an external water source are achieved, impurities in the water source are prevented from damaging equipment, the refrigerant recycling device is arranged to conduct recycling detection on refrigerants, impurities of the usable refrigerants are filtered through the filtering device, and cyclic utilization of the refrigerants is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot and cold water exchange processing, in particular to a hot and cold integrated system with a refrigerant recovery function. Background Art

[0002] A combined air conditioner and heater consists of two parts: a heating section and a cooling section. The temperature conversion process in a combined air conditioner relies primarily on its internal operating principle, which involves cyclically compressing and expanding a refrigerant to achieve heat conversion. A compressor inside the unit compresses the refrigerant into a high-pressure gas, simultaneously increasing its temperature. After entering the condenser, the high-pressure gas loses heat and becomes a high-pressure liquid refrigerant. Subsequently, the low-pressure refrigerant in the evaporator evaporates, absorbing heat and achieving cooling. Simultaneously, the circulating heat source provides a heat source for heating. This integrated design not only improves energy efficiency but also reduces the size and weight of the unit, making it easier to install and maintain.

[0003] For example, Chinese patent CN209944797U discloses a new type of integrated cold and hot equipment, including: a cold water inlet, a liquid storage tank, a filter, an expansion valve, an evaporator, a steam separator, a compressor, a hot water outlet, and a condenser. The cold water inlet pipe is connected to the liquid storage tank, the liquid storage tank pipe is connected to the filter, the filter pipe is connected to the expansion valve, the expansion valve pipe is connected to the evaporator, the evaporator pipe is connected to the steam separator, the steam separator pipe is connected to the compressor, the compressor pipe is connected to the hot water outlet, the hot water outlet pipe is connected to the condenser, and the condenser pipe is connected to the cold water inlet.

[0004] However, this technology has the following problems: the water quality is not treated multiple times, water containing impurities will damage the equipment, and the refrigerant cannot be tested to determine whether the refrigerant is usable.

[0005] Based on this, the utility model designs a cooling and heating integrated system with refrigerant recovery function to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a cooling and heating integrated system with a refrigerant recovery function.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A cooling and heating integrated system with a refrigerant recovery function includes a central control module connected to a flow control module for regulating the amount of cold water inlet, a multi-stage filtration module for filtering impurities in the water, a temperature control module for achieving heat exchange, and a refrigerant circulation module for detecting and recycling the refrigerant;

[0009] The temperature control module is connected to the refrigerant circulation module, the temperature control module is connected to the multi-stage filtration module, and the multi-stage filtration module is connected to the flow regulation module;

[0010] The central control module is electrically connected to the communication module, and the communication module is wirelessly connected to the terminal;

[0011] The refrigerant circulation module includes a temperature sensor, a refrigerant recovery device, a filtering device, a refrigerant detection device and a refrigerant recovery container. The temperature sensor, the refrigerant recovery device and the filtering device are all connected to the temperature control module. The outlet pipe of the refrigerant recovery device is connected to the inlet pipe of the refrigerant detection device. The first outlet pipe of the refrigerant detection device is connected to the inlet pipe of the refrigerant recovery container, and the second outlet pipe of the refrigerant detection device is connected to the inlet pipe of the filtering device.

[0012] Furthermore, the temperature control module includes an expansion valve, an evaporator, a gas-liquid separator, a compressor, a water outlet, a condenser and a refrigerant dosing device, the water outlet pipe of the expansion valve is connected to the first inlet pipe of the evaporator, the inlet pipe of the expansion valve is connected to the first outlet pipe of the condenser, the first outlet pipe of the evaporator is connected to the inlet pipe of the gas-liquid separator, the refrigerant dosing device is installed on the evaporator, the outlet pipe of the gas-liquid separator is connected to the inlet pipe of the compressor, the outlet pipe of the compressor is connected to the inlet pipe of the condenser, the second outlet pipe of the condenser is connected to the water outlet, the second outlet pipe of the evaporator is connected to the inlet pipe of the refrigerant recovery device, the outlet pipe of the filter device is connected to the second inlet pipe of the evaporator, and the temperature sensor is installed inside the evaporator.

[0013] Furthermore, the evaporator is connected to a multi-stage filtration module.

[0014] Furthermore, the flow regulating module includes a water inlet, a water tank, a liquid level detection device and a raw water pump. The water inlet is connected to the inlet pipe of the water tank, the outlet pipe of the water tank is connected to the inlet pipe of the raw water pump, and a liquid level detection device is installed in the water tank.

[0015] Furthermore, the outlet pipe of the raw water pump is connected to a multi-stage filtration module.

[0016] Furthermore, the multi-stage filtration module includes a primary filtration device, a secondary filtration device, a three-way valve and a water quality detection device, the outlet pipe of the primary filtration device is connected to the inlet pipe of the water quality detection device, the outlet pipe of the water quality detection device is connected to the first end of the three-way valve, the second end of the three-way valve is connected to the inlet pipe of the secondary filtration device, the third end of the three-way valve is connected to the third inlet pipe of the evaporator, and the outlet pipe of the secondary filtration device is connected to the fourth inlet pipe of the evaporator.

[0017] Furthermore, the central control module is electrically connected to the liquid level detection device, the raw water pump, the three-way valve, the water quality detection device, the expansion valve, the evaporator, the temperature sensor, and the refrigerant detection device.

[0018] Furthermore, the first-level filtering device is a multi-media filter.

[0019] Furthermore, the secondary filtering device is an activated carbon filter.

[0020] Furthermore, the filtering device is a safety filter.

[0021] Compared with the prior art, the present invention has the following beneficial effects: when the present invention is in use, the central control module controls the addition of water flow through the flow regulating module, and then the water is passed into the temperature control module after multiple detection and filtration in the multi-stage filtration module, and refrigerant is added into the temperature control module to convert the water into cold and hot. After the refrigerant is used, the refrigerant recovery device recovers the refrigerant and then transports the refrigerant to the refrigerant detection device, the refrigerant detection device detects the refrigerant and the refrigerant detection device sends the detection result of the refrigerant to the central control module, the central control module judges the detection result, if the central control module determines that the refrigerant can still be used, it is filtered by the filtration device and then transported to the temperature control module, if the refrigerant cannot be used, the refrigerant is recovered by the refrigerant recovery container; the central control module detects the working status of each part and uploads the working status of the equipment to the terminal through the communication module, and backs up and records it in the terminal to monitor the working status of the equipment;

[0022] The utility model realizes the detection of external water source and multi-stage filtration to prevent impurities in the water source from damaging the equipment, and is provided with a refrigerant recovery device to recover and detect the refrigerant, and filters the impurities in the usable refrigerant through the filtering device, thereby realizing the recycling of the refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0024] Figure 1 This is a frame of a cold and hot integrated system with refrigerant recovery function of the utility model Figure 1 ;

[0025] Figure 2This is a block diagram of the refrigerant cycle module of the present utility model;

[0026] Figure 3 This is a connection block diagram of a cooling and heating integrated system with refrigerant recovery function of the utility model;

[0027] Figure 4 This is a connection diagram of the central control module of the present utility model.

[0028] The numbers in the figure represent:

[0029] 1. Central control module; 2. Flow regulation module; 21. Water inlet; 22. Water tank; 23. Liquid level detection device; 24. Raw water pump; 3. Multi-stage filtration module; 31. Primary filtration device; 32. Secondary filtration device; 33. Three-way valve; 34. Water quality detection device; 4. Temperature control module; 41. Expansion valve; 42. Evaporator; 43. Gas-liquid separator; 44. Compressor; 45. Water outlet; 46. Condenser; 47. Refrigerant dosing device; 5. Refrigerant circulation module; 51. Temperature sensor; 52. Refrigerant recovery device; 53. Filter device; 54. Refrigerant detection device; 55. Refrigerant recovery container; 6. Communication module; 7. Terminal. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-4 A cooling and heating integrated system with a refrigerant recovery function includes a central control module 1, which is connected to a flow control module 2 for adjusting the amount of cold water inlet, a multi-stage filtration module 3 for filtering impurities in the water, a temperature control module 4 for achieving heat exchange, and a refrigerant circulation module 5 for detecting and recycling the refrigerant;

[0032] The temperature control module 4 is connected to the refrigerant circulation module 5, the temperature control module 4 is connected to the multi-stage filtration module 3, and the multi-stage filtration module 3 is connected to the flow regulation module 2;

[0033] The central control module 1 is electrically connected to the communication module 6, and the communication module 6 is wirelessly connected to the terminal 7;

[0034] The refrigerant circulation module 5 includes a temperature sensor 51, a refrigerant recovery device 52, a filter device 53, a refrigerant detection device 54 and a refrigerant recovery container 55. The temperature sensor 51, the refrigerant recovery device 52 and the filter device 53 are all connected to the temperature control module 4. The outlet pipe of the refrigerant recovery device 52 is connected to the inlet pipe of the refrigerant detection device 54. The first outlet pipe of the refrigerant detection device 54 is connected to the inlet pipe of the refrigerant recovery container 55. The second outlet pipe of the refrigerant detection device 54 is connected to the inlet pipe of the filter device 53.

[0035] The refrigerant detection device 54 is a refrigerant detector.

[0036] The refrigerant recovery device 52 adopts existing mature technology, such as a refrigerant recovery machine.

[0037] When the present invention is in use, the central control module 1 controls the addition of water flow through the flow regulating module 2, and then the water is tested and filtered for multiple times in the multi-stage filtering module 3 and then passed into the temperature control module 4, and refrigerant is added to the temperature control module 4 to convert the water into cold and hot water. After the refrigerant is used, the refrigerant recovery device 52 recovers the refrigerant and then transports the refrigerant to the refrigerant detection device 54, the refrigerant detection device 54 detects the concentration of the refrigerant and the refrigerant detection device 54 sends the detection result of the refrigerant to the central control module 1, and the central control module 1 judges the detection result. If the central control module 1 determines that the refrigerant concentration is above 99.5%, it is filtered by the filtering device 53 and then transported to the temperature control module 4. If the refrigerant concentration is lower than 99.5%, the refrigerant cannot be used and the refrigerant recovery container 55 recovers the refrigerant; the central control module 1 detects the working status of each part and uploads the working status of the equipment to the terminal 7 through the communication module 6, and backs up and records it in the terminal 7 to monitor the working status of the equipment;

[0038] The utility model realizes detection of external water source and multi-stage filtration to prevent impurities in the water source from damaging the equipment, and is provided with a refrigerant recovery device 52 to recover and detect the refrigerant, and filters the impurities in the usable refrigerant through the filtering device 53, thereby realizing the recycling of the refrigerant.

[0039] Embodiment 2: In some embodiments, as Figure 2 、 Figure 3 and Figure 4As shown, as a preferred embodiment of the present invention, the temperature control module 4 includes an expansion valve 41, an evaporator 42, a gas-liquid separator 43, a compressor 44, a water outlet 45, a condenser 46, and a refrigerant dosing device 47. The water outlet pipe of the expansion valve 41 is connected to the first inlet pipe of the evaporator 42, the inlet pipe of the expansion valve 41 is connected to the first outlet pipe of the condenser 46, the first outlet pipe of the evaporator 42 is connected to the inlet pipe of the gas-liquid separator 43, the refrigerant dosing device 47 is installed on the evaporator 42, the outlet pipe of the gas-liquid separator 43 is connected to the inlet pipe of the compressor 44, the outlet pipe of the compressor 44 is connected to the inlet pipe of the condenser 46, the second outlet pipe of the condenser 46 is connected to the water outlet 45, the second outlet pipe of the evaporator 42 is connected to the inlet pipe of the refrigerant recovery device 52, the outlet pipe of the filter device 53 is connected to the second inlet pipe of the evaporator 42, and the temperature sensor 51 is installed inside the evaporator 42. The temperature sensor 51 is used to detect temperature changes inside the evaporator 42.

[0040] The refrigerant dosing device 47 adopts an air conditioning refrigerant dosing device disclosed in CN210602375U.

[0041] The evaporator 42 is connected to the multi-stage filter module 3 .

[0042] The flow regulating module 2 includes a water inlet 21, a water tank 22, a liquid level detection device 23 and a raw water pump 24. The water inlet 21 is connected to the inlet pipe of the water tank 22, the outlet pipe of the water tank 22 is connected to the inlet pipe of the raw water pump 24, and the liquid level detection device 23 is installed in the water tank 22.

[0043] The liquid level detection device 23 is a liquid level sensor.

[0044] The outlet pipe of the raw water pump 24 is connected to the multi-stage filtration module 3 .

[0045] The multi-stage filtration module 3 includes a primary filtration device 31, a secondary filtration device 32, a three-way valve 33 and a water quality detection device 34. The outlet pipe of the primary filtration device 31 is connected to the inlet pipe of the water quality detection device 34, the outlet pipe of the water quality detection device 34 is connected to the first end of the three-way valve 33, the second end of the three-way valve 33 is connected to the inlet pipe of the secondary filtration device 32, the third end of the three-way valve 33 is connected to the third inlet pipe of the evaporator 42, and the outlet pipe of the secondary filtration device 32 is connected to the fourth inlet pipe of the evaporator 42.

[0046] The central control module 1 is electrically connected to the liquid level detection device 23 , the raw water pump 24 , the three-way valve 33 , the water quality detection device 34 , the expansion valve 41 , the evaporator 42 , the temperature sensor 51 , and the refrigerant detection device 54 .

[0047] The primary filtering device 31 is a multi-media filter.

[0048] The secondary filtering device 32 is an activated carbon filter.

[0049] The filtering device 53 is a safety filter.

[0050] When the present invention is in use, the liquid level detection device 23 detects the liquid level in the water tank 22 and uploads it to the central control module 1. If the central control module 1 determines that the liquid level in the water tank 22 is too low, the central control module 1 introduces water into the water tank 22 through the water inlet 21, and the raw water pump 24 passes the water into the primary filter device 31 for the first filtration. After filtration, the water source is passed into the water quality detection device 34, and the water quality detection device 34 detects impurities in the water source. Then, the water quality detection device 34 uploads the water quality detection result to the central control module 1, and the central control module 1 analyzes the water quality detection result. If the water source still contains impurities, the central control module 1 controls the three-way valve 33 to pass the water source into the secondary filter device 32 for further filtration, and then passes into the evaporator 42 after filtration. If the water source does not contain impurities, the central control module 1 controls the three-way valve 33 to pass the water source directly into the evaporator 42.

[0051] During refrigeration, refrigerant is added to the evaporator 42 through the refrigerant dosing device 47. The refrigerant absorbs heat from the air in the evaporator 42 and evaporates into gas. It then enters the gas-liquid separator 43 and is sucked into the compressor 44 and compressed into a high-temperature, high-pressure gas. This high-temperature, high-pressure gas loses heat when it enters the condenser 46, causing the refrigerant to condense into a liquid. The refrigerant is reduced in pressure by the expansion valve 41 and becomes a low-temperature, low-pressure liquid before re-entering the evaporator 42 to exchange heat with the water source in the evaporator 42. The refrigerant absorbs heat and evaporates into a gaseous state, achieving water cooling. The gaseous refrigerator is then re-absorbed by the compressor 44, and the cycle repeats to complete the refrigeration cycle.

[0052] During heating, the high-temperature, high-pressure gas loses heat when entering the condenser 46, heating the water. Following the law of conservation of energy and the second law of thermodynamics, only a small amount of mechanical work is consumed to transfer the heat in the low-temperature environment to the water, driving the compressor 44. This converts the heat in the compressor 44 from a low-temperature heat source to a high-temperature heat source, heating the water in the condenser 46.

[0053] After the work is completed, the liquid refrigerant returns to the evaporator 42, and is then recovered by the refrigerant recovery device 52. The refrigerant is tested for its usage by the refrigerant detection device 54. If the refrigerant detection device 54 detects that the refrigerant is usable, the refrigerant is passed into the filter device 53, filtered by the filter device 53, and then returned to the evaporator 42.

[0054] If the refrigerant detection device 54 detects that the refrigerant is unusable, the refrigerant is passed into the refrigerant recovery container 55 for recovery.

[0055] This process not only achieves the purpose of refrigeration, but also the refrigerant itself is recycled in the process.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cooling and heating integrated system with refrigerant recovery function, comprising a central control module (1), characterized in that: The central control module (1) is connected to a flow regulating module (2) for regulating the amount of cold water inlet, a multi-stage filtering module (3) for filtering impurities in the water, a temperature control module (4) for achieving cold and heat exchange, and a refrigerant circulation module (5) for detecting and recycling the refrigerant; The temperature control module (4) is connected to the refrigerant circulation module (5), the temperature control module (4) is connected to the multi-stage filtration module (3), and the multi-stage filtration module (3) is connected to the flow regulation module (2); The central control module (1) is electrically connected to the communication module (6), and the communication module (6) is wirelessly connected to the terminal (7); The refrigerant circulation module (5) comprises a temperature sensor (51), a refrigerant recovery device (52), a filtering device (53), a refrigerant detection device (54) and a refrigerant recovery container (55); the temperature sensor (51), the refrigerant recovery device (52) and the filtering device (53) are all connected to the temperature control module (4); the outlet pipe of the refrigerant recovery device (52) is connected to the inlet pipe of the refrigerant detection device (54); the first outlet pipe of the refrigerant detection device (54) is connected to the inlet pipe of the refrigerant recovery container (55); and the second outlet pipe of the refrigerant detection device (54) is connected to the inlet pipe of the filtering device (53).

2. The integrated cooling and heating system with refrigerant recovery function according to claim 1, characterized in that: The temperature control module (4) comprises an expansion valve (41), an evaporator (42), a gas-liquid separator (43), a compressor (44), a water outlet (45), a condenser (46) and a refrigerant dosing device (47), wherein the water outlet pipe of the expansion valve (41) is connected to the first inlet pipe of the evaporator (42), the inlet pipe of the expansion valve (41) is connected to the first outlet pipe of the condenser (46), the first outlet pipe of the evaporator (42) is connected to the inlet pipe of the gas-liquid separator (43), and the refrigerant dosing device (47) is installed On the evaporator (42), the outlet pipe of the gas-liquid separator (43) is connected to the inlet pipe of the compressor (44), the outlet pipe of the compressor (44) is connected to the inlet pipe of the condenser (46), the second outlet pipe of the condenser (46) is connected to the water outlet (45), the second outlet pipe of the evaporator (42) is connected to the inlet pipe of the refrigerant recovery device (52), the outlet pipe of the filter device (53) is connected to the second inlet pipe of the evaporator (42), and the temperature sensor (51) is installed inside the evaporator (42).

3. The integrated cooling and heating system with refrigerant recovery function according to claim 2, characterized in that: The evaporator (42) is connected to the multi-stage filtration module (3).

4. The integrated cooling and heating system with refrigerant recovery function according to claim 3, characterized in that: The flow regulating module (2) comprises a water inlet (21), a water tank (22), a liquid level detection device (23) and a raw water pump (24); the water inlet (21) is connected to the inlet pipe of the water tank (22); the outlet pipe of the water tank (22) is connected to the inlet pipe of the raw water pump (24); and the liquid level detection device (23) is installed in the water tank (22).

5. The integrated cooling and heating system with refrigerant recovery function according to claim 4, characterized in that: The outlet pipe of the raw water pump (24) is connected to the multi-stage filtering module (3).

6. The integrated cooling and heating system with refrigerant recovery function according to claim 5, characterized in that: The multi-stage filtration module (3) comprises a primary filtration device (31), a secondary filtration device (32), a three-way valve (33) and a water quality detection device (34); the outlet pipe of the primary filtration device (31) is connected to the inlet pipe of the water quality detection device (34); the outlet pipe of the water quality detection device (34) is connected to the first end of the three-way valve (33); the second end of the three-way valve (33) is connected to the inlet pipe of the secondary filtration device (32); the third end of the three-way valve (33) is connected to the third inlet pipe of the evaporator (42); and the outlet pipe of the secondary filtration device (32) is connected to the fourth inlet pipe of the evaporator (42).

7. The integrated cooling and heating system with refrigerant recovery function according to claim 6, characterized in that: The central control module (1) is electrically connected to the liquid level detection device (23), the raw water pump (24), the three-way valve (33), the water quality detection device (34), the expansion valve (41), the evaporator (42), the temperature sensor (51), and the refrigerant detection device (54).

8. The integrated cooling and heating system with refrigerant recovery function according to claim 7, characterized in that: The primary filtering device (31) is a multi-media filter.

9. The integrated cooling and heating system with refrigerant recovery function according to claim 8, characterized in that: The secondary filtering device (32) is an activated carbon filter.

10. The integrated cooling and heating system with refrigerant recovery function according to claim 9, characterized in that: The filtering device (53) is a safety filter.

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