Refrigeration device and water purification system

Abstract

The utility model provides a refrigerating device and a water purification system. The refrigerating device comprises a shell, a water inlet and a water outlet, a cold water tank; the waterway plate is provided with a wastewater inlet and a wastewater outlet, and the wastewater inlet is used for being communicated with a wastewater port of a water purifier; the refrigeration module comprises a compressor, a condenser and an evaporator which are connected in sequence, and the evaporator is arranged on the cold water tank; the waste water tank and the condenser are arranged in the waste water tank, the waste water tank is provided with a waste water outlet and a waste water replenishing port, the waste water outlet is communicated with the waste water outlet, the waste water replenishing port is communicated with the waste water inlet, and a first temperature sensor is arranged in the waste water tank. When the refrigeration device conducts refrigeration, the compressor, the condenser and the evaporator of the refrigeration module are started, the water purifier conveys waste water into the waste water tank through the waste water opening, when the condenser works, heat exchange can be conducted between the waste water in the waste water tank and the condenser, the waste water in the water purifier is reasonably utilized, and waste of the waste water is avoided.

Description

Technical Field

[0001] This application relates to the technical field of water purification equipment, and particularly to a refrigeration device and a water purification system. Background Art

[0002] With the development of the economy and the progress of society, people's requirements for domestic drinking water are getting higher and higher. For this reason, many families are equipped with various water purification equipment, such as water softeners, ultrafiltration machines, water purifiers, etc. The emergence of various water purification equipment has met various water use needs in people's lives.

[0003] During the process of purifying water quality by a water purifier, pure water and waste water will be generated. Among them, the pure water can be directly used by users for drinking, while the waste water is generally directly discharged into the sewer without reasonable utilization, resulting in waste of waste water. Summary of the Invention

[0004] Embodiments of this application provide a refrigeration device and a water purification system to solve the problems existing in the related art. The technical solutions are as follows:

[0005] In a first aspect, an embodiment of this application provides a refrigeration device, including:

[0006] A housing;

[0007] A cold water tank, installed inside the housing;

[0008] A water circuit board, installed inside the housing. The water circuit board has a waste water inlet and a waste water outlet. The waste water inlet is used to communicate with the waste water outlet of the water purifier;

[0009] A refrigeration module, installed inside the housing. The refrigeration module includes a compressor, a condenser, and an evaporator connected in sequence. The evaporator is arranged on the cold water tank. The refrigeration module is used to refrigerate the pure water in the cold water tank;

[0010] A waste water tank, installed inside the housing. The condenser is placed inside the waste water tank. The waste water tank has a waste water drain outlet and a waste water make-up water inlet. The waste water drain outlet is communicated with the waste water outlet, and the waste water make-up water inlet is communicated with the waste water inlet. A first temperature sensor is arranged inside the waste water tank.

[0011] In an implementation manner, the water circuit board also has a pure water inlet and a cold water outlet. The pure water inlet is used to communicate with the pure water outlet of the water purifier; the cold water tank has a water tank inlet and a water tank outlet. The pure water inlet is communicated with the water tank inlet, and the cold water outlet is communicated with the water tank outlet.

[0012] In an implementation manner, the refrigeration device further includes a water tank outer shell and a fixing fixture. The cold water tank is placed inside the water tank outer shell. The evaporator is fixed on the fixing fixture, and the fixing fixture clamps the lower part of the cold water tank.

[0013] In one embodiment, the refrigeration device further includes:

[0014] A circulating sterilization assembly, which includes a circulating pump, a circulating water pipe, and a sterilization module. There is a circulating water channel on the water circuit board. The inlet of the circulating water channel is connected to the inner bottom of the cold water tank, and the outlet of the circulating water channel is connected to the upper inner part of the cold water tank through the circulating water pipe. Both the circulating pump and the sterilization module are arranged on the circulating water pipe.

[0015] In one embodiment, a second temperature sensor and a liquid level switch are arranged in the cold water tank. The liquid level switch has a liquid level float ball, a high liquid level contact, and a low liquid level contact. When the liquid level in the cold water tank is at the high liquid level, the liquid level float ball triggers the high liquid level contact. When the liquid level in the cold water tank is at the low liquid level, the liquid level float ball triggers the low liquid level contact.

[0016] In one embodiment, the refrigeration device further includes:

[0017] An air filter element, which is installed on the cold water tank. The outlet of the air filter element is connected to the inside of the cold water tank through an air inlet pipe, and the air inlet of the air filter element is connected to the outside of the housing.

[0018] In one embodiment, there is also an exhaust port on the water circuit board, which is connected to the air outlet on the cold water tank. The air in the cold water tank enters the exhaust port through the air outlet and then is discharged.

[0019] In one embodiment, the refrigeration device further includes a pure water delivery assembly and a cold water output assembly. The pure water delivery assembly includes a pure water delivery pump and a pure water delivery pipe. The water inlet of the pure water delivery pump is connected to the pure water inlet, the water outlet of the pure water delivery pump is connected to one end of the pure water delivery pipe, and the other end of the pure water delivery pipe is connected to the water tank inlet. The cold water output assembly includes a cold water delivery pump and a cold water delivery pipe. One end of the cold water delivery pipe is connected to the water tank outlet, the other end of the cold water delivery pipe is connected to the water inlet of the cold water delivery pump, and the water outlet of the cold water delivery pump is connected to the cold water outlet.

[0020] In one embodiment, the refrigeration device further includes a middle shell and a bottom plate. Both the middle shell and the bottom plate are installed inside the housing. The bottom plate is connected to the bottom of the middle shell. The compressor is installed on the bottom plate. The cold water tank, the water circuit board, and the waste water tank are all installed on the middle shell.

[0021] In a second aspect, an embodiment of the present application provides a water purification system, including:

[0022] A water purifier;

[0023] The refrigeration device as described in any one of the above. The waste water outlet of the water purifier is connected to the waste water inlet of the water circuit board of the refrigeration device through a waste water delivery pipe, and a waste water control solenoid valve is arranged on the waste water delivery pipe.

[0024] The advantages or beneficial effects in the above technical solutions at least include:

[0025] The refrigeration device according to the embodiment of the present application includes a housing, a cold water tank, a water circuit board, a refrigeration module, and a waste water tank. The refrigeration module is used to refrigerate the pure water in the cold water tank, and the condenser of the refrigeration module is located in the waste water tank. Since the water circuit board is provided with a waste water inlet and a waste water outlet, and the waste water inlet is communicated with the waste water outlet of the water purifier, the waste water replenishing port of the waste water tank is communicated with the waste water inlet, and the waste water drainage port is communicated with the waste water outlet. When the refrigeration device according to the embodiment of the present application is refrigerating, the compressor, the condenser, and the evaporator of the refrigeration module are started, and the water purifier conveys waste water into the waste water tank through the waste water inlet. When the condenser is working, the waste water in the waste water tank can exchange heat with the condenser, so as to reasonably utilize the waste water discharged from the water purifier, avoid waste of waste water, and improve the refrigeration effect of the condenser. Since a first temperature sensor is provided in the waste water tank, the first temperature sensor can monitor the temperature of the waste water in the waste water tank, so as to facilitate controlling the rate of the waste water conveyed into the waste water tank.

[0026] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in accordance with the present application and should not be regarded as limiting the scope of the present application.

[0028] Figure 1 is a schematic structural diagram of the refrigeration device;

[0029] Figure 2 is another schematic structural diagram of the refrigeration device;

[0030] Figure 3 is a schematic structural diagram of the cold water tank and the water circuit board of the refrigeration device;

[0031] Figure 4 is a cross-sectional view of the cold water tank;

[0032] Figure 5 is a schematic structural diagram of the refrigeration device;

[0033] Description of the reference numerals:

[0034] 1. Housing; 2. Cold water tank; 3. Water circuit board; 31. Waste water inlet; 32. Waste water outlet; 33. Pure water inlet; 34. Cold water outlet; 4. Refrigeration module; 41. Compressor; 42. Condenser; 43. Evaporator; 44. Drier filter; 5. Waste water tank; 51. Waste water drain outlet; 52. Waste water make-up port; 21. Tank inlet; 22. Tank outlet; 6. Pure water delivery assembly; 7. Cold water output assembly; 61. Pure water delivery pump; 62. Pure water delivery pipe; 71. Cold water delivery pipe; 8. Fixed fixture; 81. Connection plate; 82. Connection hole; 9. Tank housing; 10. Circulating sterilization assembly; 101. Circulating pump; 102. Circulating water pipe; 103. Sterilization module; 11. Second temperature sensor; 12. Liquid level switch; 121. Liquid level float; 13. Air filter element; 14. Intake pipe; 35. Exhaust port; 15. Middle housing; 16. Bottom plate; 36. Pipeline machine water port. Detailed implementation manners

[0035] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0036] Embodiment 1:

[0037] As Figures 1 to 5 shown, the embodiment of the present application provides a refrigeration device, including: a housing 1; a cold water tank 2 installed inside the housing 1; a water circuit board 3 installed inside the housing 1, the water circuit board 3 having a waste water inlet 31 and a waste water outlet 32, the waste water inlet 31 being used to communicate with the waste water outlet of a water purifier; a refrigeration module 4 installed inside the housing 1, the refrigeration module 4 including a compressor 41, a condenser 42 and an evaporator 43 connected in sequence, the evaporator 43 being disposed on the cold water tank 2, the refrigeration module 4 being used to refrigerate the pure water in the cold water tank 2; a waste water tank 5 installed inside the housing 1, the condenser 42 being placed inside the waste water tank 5, the waste water tank 5 having a waste water drain outlet 51 and a waste water make-up port 52, the waste water drain outlet 51 being connected to the waste water outlet 32, the waste water make-up port 52 being connected to the waste water inlet 31, and a first temperature sensor being disposed inside the waste water tank 5.

[0038] When the refrigeration device according to the embodiment of the present application performs refrigeration, the compressor 41, condenser 42 and evaporator 43 of the refrigeration module 4 are started. The water purifier conveys wastewater into the wastewater tank 5 through the wastewater inlet 31. When the condenser 42 is working, the wastewater in the wastewater tank 5 can exchange heat with the condenser 42, so as to reasonably utilize the wastewater discharged from the water purifier, avoid waste of wastewater, and improve the refrigeration effect of the condenser 42. Since a first temperature sensor is provided in the wastewater tank 5, the first temperature sensor can monitor the temperature of the wastewater in the wastewater tank 5, so as to facilitate the control of the rate of wastewater conveyed into the wastewater tank 5.

[0039] Among them, refrigerating the pure water in the cold water tank 2 by the compressor 41, condenser 42 and evaporator 43 is the prior art, and its working principle will not be elaborated here. A dryer filter 44 is also provided between the condenser 42 and the evaporator 43.

[0040] In one embodiment, the pure water in the cold water tank 2 can also be conveyed by the water purifier. In order to facilitate the conveyance of pure water into the cold water tank 2, the water circuit board 3 also has a pure water inlet 33 and a cold water outlet 34. The pure water inlet 33 is used to communicate with the pure water outlet of the water purifier. The cold water tank 2 has a water tank inlet 21 and a water tank outlet 22. The pure water inlet 33 is communicated with the water tank inlet 21, and the cold water outlet 34 is communicated with the water tank outlet 22. The pure water in the water purifier enters the water tank through the pure water inlet 33 and the water tank inlet 21, and the refrigeration module 4 refrigerates the water in the cold water tank 2. The refrigerated cold water can be conveyed out through the water tank outlet 22 and the cold water outlet 34.

[0041] In order to realize the conveyance of pure water and the output of cold water, the refrigeration device further includes a pure water conveyance assembly 6 and a cold water output assembly 7. Among them, the pure water conveyance assembly 6 includes a pure water conveyance pump 61 and a pure water conveyance pipe 62. The water inlet of the pure water conveyance pump 61 is communicated with the pure water inlet 33, the water outlet of the pure water conveyance pump 61 is communicated with one end of the pure water conveyance pipe 62, and the other end of the pure water conveyance pipe 62 is communicated with the water tank inlet 21. After the filtered pure water in the water purifier is conveyed to the water circuit board 3 through the pure water inlet 33, it is conveyed to the cold water tank 2 through the pure water conveyance pump 61 and the pure water conveyance pipe 62.

[0042] The cold water output assembly 7 includes a cold water conveyance pump and a cold water conveyance pipe 71. One end of the cold water conveyance pipe 71 is communicated with the water tank outlet 22, the other end of the cold water conveyance pipe 71 is communicated with the water inlet of the cold water conveyance pump, and the water outlet of the cold water conveyance pump is communicated with the cold water outlet 34. When the cold water in the cold water tank 2 needs to be output, the cold water conveyance pump is started, and the cold water in the cold water tank 2 is output through the cold water conveyance pipe 71 and the cold water conveyance pump through the cold water outlet 34.

[0043] In one embodiment, to fix the evaporator 43 on the cold water tank 2, the refrigeration device further includes a fixing clamp 8. The evaporator 43 is fixed on the fixing clamp 8, and the fixing clamp 8 clamps the lower part of the cold water tank 2. Preferably, the evaporator 43 can be fixed on the fixing clamp 8 by an existing fixing method as long as the fixing of the evaporator 43 on the fixing clamp 8 can be achieved.

[0044] To fix the fixing clamp 8 on the cold water tank 2, the fixing clamp 8 has an opening part. Both sides of the opening part respectively have connecting plates 81, and connecting holes 82 are respectively opened at corresponding positions of the two connecting plates 81. The fixing clamp 8 can be clamped and fixed on the cold water tank 2 by inserting bolts into the two connecting holes 82.

[0045] The refrigeration device further includes a water tank housing 9, and the cold water tank 2 is placed inside the water tank housing 9. In one embodiment, the water tank housing 9 can be made of a heat-insulating material. By providing the water tank housing 9, the influence of the external environment on the water temperature in the cold water tank 2 can be reduced. The above-mentioned heat-insulating material can be polyurethane foam, rock wool, etc. In addition, by providing the water tank housing 9, dust, etc. can also be prevented from falling on the evaporator 43, reducing the cleaning difficulty of the evaporator 43. Due to the provision of the water tank housing 9, the cold water temperature in the cold water tank 2 can be maintained at 5 - 15 degrees. When the cold water temperature in the cold water tank 2 exceeds 15 degrees, refrigeration can be performed by the refrigeration module 4.

[0046] Since the evaporator 43 is fixed at the lower part of the cold water tank 2, to improve the refrigeration efficiency, the refrigeration device further includes a circulating sterilization component 10. The circulating sterilization component 10 includes a circulating pump 101, a circulating water pipe 102, and a sterilization module 103. The water circuit board 3 has a circulating water channel. The inlet of the circulating water channel is connected to the inner bottom of the cold water tank 2, and the outlet of the circulating water channel is connected to the inner upper part of the cold water tank 2 through the circulating water pipe 102. The circulating pump 101 and the sterilization module 103 are both arranged on the circulating water pipe 102.

[0047] After the circulating sterilization component 10 is started, the cold water at the inner bottom of the cold water tank 2 is conveyed to the inner upper part of the cold water tank 2 through the circulating pump 101 and the circulating water pipe 102, realizing the mixing of the cold water in the cold water tank 2 and improving the refrigeration efficiency of the cold water in the cold water tank 2. During the cold water circulation process, the cold water is sterilized by the sterilization module 103. In one embodiment, the sterilization module 103 can be a UVC lamp, and the water in the circulating water pipe 102 is sterilized by the UVC lamp.

[0048] In order to monitor the liquid level and temperature in the cold water tank 2, a second temperature sensor 11 and a liquid level switch 12 are provided in the cold water tank 2. The liquid level switch 12 is an existing float liquid level switch, and the liquid level switch 12 has a liquid level float 121, a high liquid level contact and a low liquid level contact. When the liquid level in the cold water tank 2 is at the high liquid level, the liquid level float 121 triggers the high liquid level contact, and when the liquid level in the cold water tank 2 is at the low liquid level, the liquid level float 121 triggers the low liquid level contact.

[0049] In one embodiment, the refrigeration device further includes an air filter element 13. The air filter element 13 is installed on the cold water tank 2. The outlet of the air filter element 13 is connected to the inside of the cold water tank 2 through an intake pipe 14, and the intake port of the air filter element 13 is connected to the outside of the housing 1. Further, the water circuit board 3 also has an exhaust port 35. The exhaust port 35 is connected to the air outlet on the cold water tank 2. The air in the cold water tank 2 enters the exhaust port 35 through the air outlet and then is discharged.

[0050] The water pressure in the cold water tank 2 may change. By ventilating and exhausting the cold water tank 2, the pressure in the tank can be balanced. In addition, after the gas in the cold water tank 2 is discharged, it can prevent the cold water in the cold water tank 2 from being polluted. The setting of the air filter element 13 can filter dust, particulate matter, etc. in the air from entering the cold water tank 2 and reduce the pollution inside the cold water tank 2. The ventilation and exhaust in the cold water tank 2 can be controlled by a solenoid valve. In one embodiment, in order to detect the air pressure in the cold water tank 2, a pressure sensor can also be provided in the cold water tank 2.

[0051] The refrigeration device further includes a middle shell 15 and a bottom plate 16. The middle shell 15 and the bottom plate 16 are both installed inside the housing 1. The bottom plate 16 and the bottom of the middle shell 15 can be connected by bolts or the like. The compressor 41 is installed on the bottom plate 16, and the cold water tank 2, the water circuit board 3 and the waste water tank 5 are all installed on the middle shell 15.

[0052] When the refrigeration device is working, when the water level in the cold water tank 2 is at a low level, the liquid level float ball 121 triggers the low-level contact, and the water purifier conveys normal-temperature pure water into the cold water tank 2. When the liquid level float ball 121 triggers the high-level contact, the water purifier stops conveying pure water into the cold water tank 2, and at the same time, the wastewater generated by the water purifier is conveyed into the wastewater tank 5. When cooling the water, the refrigeration module 4 is started, the first temperature sensor detects the water temperature in the wastewater tank 5, and the second temperature sensor 11 detects the water temperature in the cold water tank 2. When the first temperature sensor detects that the water temperature in the wastewater tank 5 rises to 45 degrees, the water purifier starts the flushing mode, and the flushed wastewater enters the wastewater tank 5. At the same time, the original wastewater in the wastewater tank 5 is discharged, and the wastewater tank 5 is replaced with new water to prevent the water temperature in the wastewater tank 5 from being too high. When the water temperature in the cold water tank 2 reaches 5 degrees, the refrigeration module 4 stops operating. During the refrigeration process, the circulation pump 101 of the circulation sterilization component 10 is turned on for circulation every five minutes. The circulation pump 101 is a circulation impeller pump. The conveyance of pure water, the conveyance of wastewater, and the discharge of wastewater can all be controlled by solenoid valves.

[0053] In one embodiment, a pipeline machine water inlet 36 can also be provided on the water circuit board 3. The pipeline machine water inlet 36 is communicated with the water tank outlet 22, and the pipeline machine water inlet 36 can be connected to an external pipeline machine to supply cold water to the pipeline machine.

[0054] Embodiment 2:

[0055] The following is a detailed description of this embodiment with reference to Embodiment 1:

[0056] The embodiment of the present application provides a water purification system, including: a water purifier; a refrigeration device as described in Embodiment 1 above. The wastewater outlet of the water purifier is communicated with the wastewater inlet 31 of the water circuit board 3 of the refrigeration device through a wastewater conveyance pipe, and a wastewater control solenoid valve is provided on the wastewater conveyance pipe.

[0057] Since the wastewater outlet of the water purifier is communicated with the wastewater inlet 31 of the water circuit board 3 of the refrigeration device, the water purifier can convey wastewater to the wastewater tank 5 of the refrigeration device, and enable the wastewater in the wastewater tank 5 to exchange heat with the condenser 42 in the wastewater tank 5, improving the refrigeration efficiency of the condenser 42. At the same time, the wastewater discharged by the water purifier can be reused.

[0058] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0059] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0060] As described above, it is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of various changes or substitutions, and these should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A refrigeration device, characterized in that: include: case; A cold water tank is installed inside the shell; A waterway plate is installed inside the housing, and the waterway plate has a wastewater inlet and a wastewater outlet, and the wastewater inlet is used to communicate with the wastewater outlet of the water purifier; A refrigeration module is installed in the housing, the refrigeration module comprises a compressor, a condenser and an evaporator which are connected in sequence, the evaporator is arranged on the cold water tank, and the refrigeration module is used to refrigerate the pure water in the cold water tank; A wastewater tank is installed inside the shell, the condenser is placed in the wastewater tank, the wastewater tank has a wastewater drain port and a wastewater replenishment port, the wastewater drain port is connected to the wastewater outlet, the wastewater replenishment port is connected to the wastewater inlet, and a first temperature sensor is arranged in the wastewater tank.

2. The refrigeration device according to claim 1, characterized in that: The waterway plate also has a pure water inlet and a cold water outlet, and the pure water inlet is used to be connected to the pure water outlet of the water purifier; the cold water tank has a water tank inlet and a water tank outlet, the pure water inlet is connected to the water tank inlet, and the cold water outlet is connected to the water tank outlet.

3. The refrigeration device according to claim 1, characterized in that: The refrigeration device also includes a water tank shell and a fixing fixture, the cold water tank is placed inside the water tank shell, the evaporator is fixed on the fixing fixture, and the fixing fixture is clamped at the lower part of the cold water tank.

4. The refrigeration device according to claim 1, characterized in that: The refrigeration unit also includes: A circulating sterilization component, the circulating sterilization component includes a circulating pump, a circulating water pipe and a sterilization module. The waterway plate is provided with a circulating water channel. The inlet of the circulating water channel is connected to the inner bottom of the cold water tank. The outlet of the circulating water channel is connected to the inner upper part of the cold water tank through the circulating water pipe. The circulating pump and the sterilization module are both arranged on the circulating water pipe.

5. The refrigeration device according to claim 1, characterized in that: A second temperature sensor and a liquid level switch are provided in the cold water tank. The liquid level switch has a liquid level float, a high liquid level contact and a low liquid level contact. When the liquid level in the cold water tank is at a high liquid level, the liquid level float triggers the high liquid level contact. When the liquid level in the cold water tank is at a low liquid level, the liquid level float triggers the low liquid level contact.

6. The refrigeration device according to any one of claims 1 to 5, characterized in that: The refrigeration unit also includes: An air filter element is installed on the cold water tank, an outlet of the air filter element is connected to the interior of the cold water tank through an air inlet pipe, and an air inlet of the air filter element is connected to the outside of the shell.

7. The refrigeration device according to claim 6, characterized in that: The waterway plate is also provided with an exhaust port, which is communicated with an air outlet on the cold water tank. The air in the cold water tank enters the exhaust port through the air outlet and is then discharged.

8. The refrigeration device according to claim 2, characterized in that: The refrigeration device also includes a pure water delivery component and a cold water output component, the pure water delivery component includes a pure water delivery pump and a pure water delivery pipe, the water inlet of the pure water delivery pump is connected to the pure water inlet, the water outlet of the pure water delivery pump is connected to one end of the pure water delivery pipe, and the other end of the pure water delivery pipe is connected to the water tank inlet; the cold water output component includes a cold water delivery pump and a cold water delivery pipe, one end of the cold water delivery pipe is connected to the water tank outlet, the other end of the cold water delivery pipe is connected to the water inlet of the cold water delivery pump, and the water outlet of the cold water delivery pump is connected to the cold water outlet.

9. The refrigeration device according to any one of claims 1 to 5, characterized in that: The refrigeration device also includes a middle shell and a bottom plate, both of which are installed inside the shell, the bottom plate is connected to the bottom of the middle shell, the compressor is installed on the bottom plate, and the cold water tank, the waterway plate and the waste water tank are all installed on the middle shell.

10. A water purification system, characterized in that: include: Water purifier; According to any one of claims 1 to 9, the wastewater outlet of the water purifier is connected to the wastewater inlet of the water board of the refrigeration device through a wastewater delivery pipe, and the wastewater delivery pipe is provided with a wastewater control solenoid valve.

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