A chilled water plant

Abstract

The application relates to the technical field of refrigerated water equipment, in particular to a refrigerated water equipment which comprises a filter core, a refrigeration part, a refrigerated water path, a water inlet pipeline and a hot water outlet pipeline, the filter core is provided with a water inlet end, a clean water outlet end and a waste water outlet end; the refrigeration part is provided with a refrigeration part and a heating part; the refrigerated water path is in heat conduction connection with the refrigeration part; the water inlet pipeline passes through the heating part and is connected to the water inlet end; one end of the hot water outlet pipeline is communicated with the clean water outlet end and / or the waste water outlet end, and the other end of the hot water outlet pipeline is used for outputting hot water. Compared with the prior art, the heat exchange water generated by the heat exchange water path is output to the outside through the filter core and is used for supplying the outside, the heat of the heating part of the refrigeration part can be effectively utilized, energy waste is reduced, meanwhile, the heat exchange water cannot be directly discharged as waste water generated by the refrigerated water equipment, and the material utilization rate and the energy utilization rate of the refrigerated water equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of chilled water equipment technology, specifically to a chilled water equipment. Background Technology

[0002] Chilled water equipment can produce water at temperatures below room temperature, meeting users' needs for low-temperature water. Therefore, chilled water equipment is becoming increasingly common in both commercial and residential settings.

[0003] In chilled water systems, the refrigeration components generate heat while cooling the water, which affects the cooling efficiency. To ensure efficient chilled water supply, heat dissipation structures are typically installed on the heat-generating parts of the refrigeration components. These structures dissipate heat from the components, improving their efficiency and ensuring the chilled water system can effectively provide cold water to users. However, the heat dissipated by these structures is often not effectively utilized; instead, it is directly lost or discharged, significantly reducing the energy utilization rate of the chilled water system. Utility Model Content

[0004] In view of this, this application provides a cooling water device that can effectively utilize the heat dissipated by the heating part of the cooling component and improve the energy utilization rate of the cooling water device.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a cooling water device, including a filter element, a cooling component, a cooling water circuit, an inlet pipe, and a hot water outlet pipe. The filter element is provided with an inlet end, a clean water outlet end, and a wastewater outlet end; the cooling component is provided with a cooling part and a heating part; the cooling water circuit is thermally connected to the cooling part; the inlet pipe passes through the heating part and is connected to the inlet end; one end of the hot water outlet pipe is connected to the clean water outlet end and / or the wastewater outlet end, and the other end is used to output hot water.

[0006] In one specific embodiment, one end of the cooling water circuit is connected to the purified water outlet, and the other end is used to connect to the cold water outlet channel.

[0007] In one specific embodiment, the hot water outlet pipeline includes a purified water outlet pipeline, one end of which is connected to the purified water outlet end, and the other end is used to connect to the drinking water pipeline of an external heating device.

[0008] In one specific embodiment, the hot water outlet pipeline includes a domestic water outlet pipe, one end of which is connected to the wastewater outlet and the other end is used to connect to the domestic water pipe of an external heating device.

[0009] In one specific embodiment, the hot water outlet pipe is used to connect one end of the hot water pipe, and the chilled water equipment further includes a return interface, which is connected to at least one of the inlet pipe, the inlet end, and the chilled water circuit, and the return interface is also used to connect the other end of the hot water pipe.

[0010] In one specific embodiment, one end of the hot water outlet pipe is connected to the purified water outlet, and the return port is used to connect the hot water pipe and the cooling water circuit.

[0011] In one specific embodiment, the cooling water circuit includes a cooling water inlet circuit, a cold water chamber, and a cooling water outlet circuit. The cooling water inlet circuit is connected to the cold water chamber, and the cold water chamber is thermally connected to the cooling unit. The cooling water outlet circuit is used to output the cold water prepared in the cold water chamber. The reflux interface is used to connect the hot water pipe and the cooling water inlet circuit and / or the cold water chamber.

[0012] In one specific embodiment, one end of the hot water outlet pipe is connected to the wastewater outlet, and the return port is used to connect the end of the inlet pipe away from the inlet end and the hot water pipe.

[0013] In one specific embodiment, the chilled water equipment is further provided with a hot water exchange circuit, in which water circulates. The hot water exchange circuit is thermally connected to the heating element. The inlet water pipe includes a low-temperature water circuit and a high-temperature water circuit. The low-temperature water circuit is used to connect the water source and the hot water exchange circuit. The high-temperature water circuit connects the hot water exchange circuit and the inlet end. The return port is connected to the hot water exchange circuit.

[0014] In one specific embodiment, the hot water exchange circuit includes a circulating water circuit and a hot water exchange chamber. The circulating water circuit includes a high-temperature end and a low-temperature end. Water in the circulating water circuit flows from the low-temperature end to the high-temperature end. The low-temperature end of the circulating water circuit is connected to the bottom of the hot water exchange chamber, and the high-temperature end of the circulating water circuit is connected to the top of the hot water exchange chamber. The circulating water circuit and / or the hot water exchange chamber are thermally connected to the heating element. The low-temperature water circuit is connected to the low-temperature end, the high-temperature water circuit is connected to the high-temperature end and the water inlet end, and the return port is connected to the low-temperature end and / or the bottom of the hot water exchange chamber.

[0015] The beneficial effects of this application include: by setting up an inlet water pipe and a hot water outlet water pipe, the hot water that flows through the heating element and has undergone a heat exchange process with the heating element can be input into the inlet end of the filter element through the inlet water pipe, and the hot water that has been filtered by the filter element and output from the clean water outlet end, or the hot water that has been rinsed by the filter element and output from the wastewater outlet end, can be output through the hot water outlet water pipe. This allows external equipment to utilize the hot water generated by the cooling water equipment or the heat in the hot water, and the hot water can be reused. This prevents the hot water from being wasted by being directly discharged as wastewater generated by the cooling water equipment, and improves the material utilization rate of the cooling water equipment.

[0016] Furthermore, the temperature of the hot water increases after flowing through the heating element. The higher temperature of the hot water can conduct some heat into the filter element as it flows through it, thus raising the temperature of the filter element. Since the viscosity of water decreases as the temperature rises, the molecular motion becomes more intense, and the speed at which the water passes through the filter element structure is also faster. Therefore, for some types of filter elements, appropriately increasing the temperature can increase the speed at which the filter element filters water. The heat carried away by the hot water from the heating element can be used not only for external output but also to increase the speed efficiency of the filter element, effectively improving the energy utilization rate of the chilled water equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the water circuit structure of an embodiment of the chilled water equipment provided in this application;

[0019] Figure 2 This is a schematic diagram of the water circuit structure of another embodiment of the chilled water equipment provided in this application;

[0020] Figure 3 This is a schematic diagram of the water circuit structure of another embodiment of the cooling water equipment provided in this application;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the cold water tank, heat exchanger, and hot water tank provided in this application;

[0022] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure shown in section AA;

[0023] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure shown in section BB.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Refrigeration water equipment; 2. Filter element; 21. Water inlet; 22. Clean water outlet; 221. Clean water output pipe; 23. Wastewater outlet; 3. Refrigeration components; 31. Refrigeration unit; 32. Heating unit; 4. Refrigeration water circuit; 41. Refrigeration water inlet circuit; 411. Refrigeration water inlet valve; 42. Cold water chamber; 42a. Cold water tank; 43. Refrigeration water outlet circuit; 5. Water inlet pipe; 51. Low temperature water circuit; 52. High temperature water circuit; 61. Hot water outlet pipe; 611. Clean water outlet pipe; 62. Return port; 7. Hot water exchange circuit; 71. Circulating water circuit; 711. Low temperature end; 712. High temperature end; 713. Circulating pump; 72. Hot water exchange chamber; 72a. Hot water exchange tank; 73. Return water circuit; 8. External heating equipment; 81. Hot water pipe; 811. Drinking water pipe; 812. Domestic water pipe; 91. Cold water outlet channel; 92. Inlet channel; 921. Inlet valve body; 93. Heat exchanger. Detailed Implementation

[0026] In this application, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0031] Chilled water equipment can produce water at temperatures below room temperature, meeting users' needs for low-temperature water. Therefore, chilled water equipment is becoming increasingly common in both commercial and residential settings.

[0032] In chilled water systems, the refrigeration components generate heat while cooling the water, which affects the cooling efficiency. To ensure efficient chilled water supply, heat dissipation structures are typically installed on the heat-generating parts of the refrigeration components. These structures dissipate heat from the components, improving their efficiency and ensuring the chilled water system can effectively provide cold water to users. However, the heat dissipated by these structures is often not effectively utilized; instead, it is directly lost or discharged, significantly reducing the energy utilization rate of the chilled water system.

[0033] In order to improve or solve the above technical problems, the inventors of this application, after long-term research, have proposed at least the following embodiments.

[0034] See Figures 1-3 , Figure 1 This is a schematic diagram of the water circuit structure of an embodiment of the cooling water equipment provided in this application. Figure 2 This is a schematic diagram of the water circuit structure of another embodiment of the cooling water equipment provided in this application. Figure 3 This is a schematic diagram of the water circuit structure of another embodiment of the cooling water equipment provided in this application.

[0035] This application provides a chilled water device 1, including a filter element 2, a cooling component 3, a chilled water circuit 4, an inlet pipe 5, and a hot water outlet pipe 61. The filter element 2 has an inlet end 21, a clean water outlet end 22, and a wastewater outlet end 23. The cooling component 3 has a cooling section 31 and a heating section 32. The chilled water circuit 4 is thermally connected to the cooling section 31. The inlet pipe 5 passes through the heating section 32 and is connected to the inlet end 21. One end of the hot water outlet pipe 61 is connected to the clean water outlet end 22 and / or the wastewater outlet end 23, and the other end of the hot water outlet pipe 61 is used to output hot water. For example, the other end of the hot water outlet pipe 61 can be connected to the hot water pipe 81 inside an external heating device 8, outputting hot water to the hot water pipe 81 to ultimately supply the external heating device 8.

[0036] The external heating device 8 may include a water heater, dishwasher, or water purifier, which typically has a hot water pipe 81 for passing hot water. Taking a dishwasher as an example, a dishwasher uses water along with dishwashing tablets or detergent to wash dishes. Using hot water to wash dishes helps emulsify the grease on the dishes, thereby improving the efficiency of the dishwasher and making the dishes cleaner.

[0037] Specifically, the cooling element 3 can be a semiconductor cooling element, which can include an N-type element and a P-type element connected in series. The N-type element and the P-type element respectively include N-type semiconductor material and P-type semiconductor material (e.g., bismuth telluride). When a direct current is applied to the semiconductor cooling element, i.e., when the cooling element 3 is working, the N-type semiconductor material and a piece of P-type semiconductor material of the semiconductor cooling element are connected to form an electric couple, thereby generating energy transfer. The current flows from the N-type element to the junction of the P-type element, absorbing heat and becoming the cooling section 31. The current flows from the P-type element to the junction of the N-type element, releasing heat and becoming the heating section 32.

[0038] In the structure provided in this specific embodiment, by setting up an inlet pipe 5 and a hot water outlet pipe 61, the hot water that flows through the heating element 32 and has undergone a heat exchange process with the heating element 32 can be input into the inlet end 21 of the filter element 2 through the inlet pipe 5. The hot water that has been filtered by the filter element 2 and output from the clean water outlet end 22, or the hot water that has been rinsed by the filter element 2 and output from the wastewater outlet end 23, can be output to the outside through the hot water outlet pipe 61. This allows external equipment to utilize the hot water generated by the cooling water equipment 1 or the heat in the hot water, and to reuse the hot water. This prevents the hot water from being wasted by being discharged directly as wastewater generated by the cooling water equipment 1, and improves the energy utilization rate and material utilization rate of the cooling water equipment 1.

[0039] Furthermore, the temperature of the hot water increases after flowing through the heating element 32. The higher temperature of the hot water can transfer some of the heat to the filter element 2 when it flows through the filter element 2, thus raising the temperature of the filter element 2. Since the viscosity of water decreases as the temperature increases, the molecular motion becomes more intense, and the speed of passing through the structure of the filter element 2 will be faster. Therefore, for some types of filter elements 2, appropriately increasing the temperature can increase the speed at which the filter element 2 filters water. The heat carried away by the hot water from the heating element 32 can be used not only for the external heat-using equipment 8, but also to increase the speed efficiency of the filter element 2, which can effectively improve the energy utilization rate of the cooling water equipment 1.

[0040] Specifically, filter element 2 may include a reverse osmosis filter element, an ultrafiltration filter element, and an ion exchange resin filter element. As temperature increases, water viscosity decreases, molecular diffusion accelerates, the permeability of the reverse osmosis membrane in the reverse osmosis filter element increases, and the rate at which water passes through the ultrafiltration membrane in the ultrafiltration filter element increases, thus increasing the rate at which filtered water is output from both the reverse osmosis and ultrafiltration filter elements. For the ion exchange resin filter element, increased temperature enhances the thermal motion of molecules, promoting the ion exchange process of the ion exchange resin, thereby increasing the filtration speed of the ion exchange resin filter element.

[0041] Optionally, such as Figure 1 , Figure 2 , Figure 3 As shown, the chilled water equipment 1 may also be equipped with a purified water output pipe 221. One end of the purified water output pipe 221 is connected to the purified water outlet 22 of the filter element 2, and the other end of the purified water output pipe 221 is used to output the water filtered by the filter element 2, so that the hot water for exchange can be directly supplied to the user as purified water through the purified water output pipe 221 after entering the filter element 2 and being filtered by the filter element 2.

[0042] like Figure 1 , Figure 2 , Figure 3 As shown, in a specific embodiment of this application, one end of the cooling water circuit 4 is connected to the purified water outlet 22, and the other end is used to connect to the cold water outlet channel 91. In the structure provided in this specific embodiment, connecting the cooling water circuit 4 to the purified water outlet 22 of the filter element 2 allows the hot water filtered by the filter element 2 to be input into the cooling water circuit 4, thereby enabling the hot water to be recovered and used to prepare cold water. This prevents the hot water from being directly discharged as wastewater generated by the cooling water equipment 1, thus improving the material utilization rate of the cooling water equipment 1.

[0043] See Figure 2In one specific embodiment of this application, the hot water outlet pipe 61 includes a purified water outlet pipe 611, one end of which is connected to the purified water outlet 22. The hot water pipe 81 includes a drinking water pipe 811, and the other end of the purified water outlet pipe 611 is used to connect to the drinking water pipe 811 of the external heating device 8. In the structure provided in this specific embodiment, the purified water outlet pipe 611 is connected to the purified water outlet 22 of the filter element 2, and the hot water exchanged after being filtered by the filter element 2 is output to the external heating device 8 through the purified water outlet pipe 611. Since the hot water exchanged after being filtered by the filter element 2 is output from the purified water outlet 22, it can be output as potable purified water to the drinking water pipe 811 of the external heating device 8, thereby improving the material utilization rate and usability of the cooling water device 1.

[0044] The external heating equipment 8 equipped with drinking water pipe 811 may include at least one of the following: water dispenser, water heater, coffee machine, rice cooker, ice maker, soy milk maker, juicer, direct drinking water faucet, etc.

[0045] like Figure 1 and Figure 3 As shown in a specific embodiment of this application, the hot water outlet pipe 61 includes a domestic water outlet pipe 612, one end of which is connected to the wastewater outlet 23. The hot water pipe 81 includes a domestic water pipe 812, and the other end of the domestic water outlet pipe 612 is used to connect to the domestic water pipe 812 of the external heating device 8. In the structure provided in this specific embodiment, the domestic water outlet pipe 612 is connected to the wastewater outlet 23 of the filter element 2, and the hot water after rinsing the filter element 2 is output to the external heating device 8 through the domestic water outlet pipe 612. This portion of hot water is not filtered by the filter element 2, and therefore cannot reach the water quality for drinking. It can be input as domestic water into the domestic water pipe 812 of the external heating device 8, which can improve the material utilization rate and availability of the cooling water equipment 1.

[0046] The external heating equipment 8, which is equipped with a domestic water pipe 812, may include at least one of the following: faucet, water heater, shower head, toilet, floor heating, washing machine, robot vacuum cleaner, dishwasher, etc.

[0047] See Figure 1 , Figure 2 , Figure 3 In one specific embodiment of this application, the hot water outlet pipe 61 is used to connect to one end of the hot water pipe 81. The chilled water equipment 1 also includes a return port 62, which connects to at least one of the inlet pipe 5, the inlet end 21, and the chilled water circuit 4. Furthermore, the return port 62 is also used to connect to the other end of the hot water pipe 81.

[0048] In addition to directly supplying the hot water to the external heating device 8, the hot water can also be introduced into the external heating device 8, and after heat exchange with the external heating device 8, the hot water can be returned to the cooling water device 1. In the structure provided in this specific embodiment, a return port 62 is also provided. The hot water is input into the hot water pipe 81 through the hot water outlet pipe 61. After heat exchange with the external heating device 8, the temperature of the hot water drops, and it can flow back through the return port 62 to at least one of the inlet pipe 5, the inlet end 21, and the cooling water pipe 4, and be supplied to the cooling water device 1 again. Thus, while transferring the heat generated by the heating element 32 to the external heating device 8, the hot water used for heat transfer can be recovered, which can effectively improve the energy utilization rate and material utilization rate of the cooling water device 1.

[0049] See Figure 2 In one specific embodiment of this application, one end of the hot water outlet pipe 61 is connected to the purified water outlet 22, and the return port 62 is used to connect the hot water pipe 81 and the cooling water pipe 4.

[0050] In the structure provided in this specific embodiment, the hot water outlet pipe 61 receives the exchanged hot water output from the purified water outlet 22 and inputs it into the hot water pipe 81. Since the exchanged hot water has been filtered by the filter element 2, it has good water quality. Therefore, after the exchanged hot water flows through the hot water pipe 81 and exchanges heat with the external heat-using equipment 8, the exchanged hot water returning through the return port 62 can be directly input into the cooling water circuit 4 for the preparation of cold water or output along with the cold water prepared by the cooling water circuit 4. This allows for the simultaneous transfer of heat generated by the heating element 32 to the external heat-using equipment 8 and the recovery of the exchanged hot water used for heat transfer into the cooling water circuit 4, effectively improving the energy and material utilization rates of the cooling water equipment 1.

[0051] like Figure 2 As shown in a specific embodiment of this application, the cooling water circuit 4 includes a cooling water inlet circuit 41, a cold water chamber 42, and a cooling water outlet circuit 43. The cooling water inlet circuit 41 connects to the cold water chamber 42, the cold water chamber 42 is thermally connected to the cooling unit 31, and the cooling water outlet circuit 43 is used to output the cold water prepared in the cold water chamber 42. The reflux interface 62 is used to connect the hot water pipe 81 to the cooling water inlet circuit 41 and / or the cold water chamber 42.

[0052] In the structure provided in this specific embodiment, the return interface 62 can specifically connect to at least one of the cooling water inlet 41 and the cold water chamber 42, so that the water flowing back from the hot water pipe 81 to the cooling water device 1 can be used to prepare cold water. Thus, while transferring the heat generated by the heating unit 32 to the external heat-using device 8, the hot water used for heat transfer is recovered for the preparation of cold water, which can effectively improve the energy utilization rate and material utilization rate of the cooling water device 1.

[0053] Specifically, see Figure 3 A cooling water inlet valve 411 can be connected to the cooling water inlet circuit 41. The cooling water inlet valve 411 is used to control the opening and closing of the cooling water inlet circuit 41. When the cooling water inlet valve 411 is closed, the water output from the clean water outlet 22 of the filter element 2 cannot enter the cooling water circuit 4 downstream of the cooling water inlet valve 411.

[0054] See Figure 1 In one specific embodiment of this application, one end of the hot water outlet pipe 61 is connected to the wastewater outlet 23, and the return port 62 is used to connect the hot water pipe 81 to the end of the inlet pipe 5 away from the inlet end 21.

[0055] In the structure provided in this specific embodiment, the hot water outlet pipe 61 inputs the hot water exchanged from the wastewater outlet 23 into the hot water pipe 81. Since the hot water exchanged is not filtered by the filter element 2, after the hot water exchanged with the external heat-using equipment 8 through the hot water pipe 81, the hot water exchanged through the return port 62 can be input into the end of the inlet pipe 5 away from the inlet end 21, so that it can flow through the heating element 32 again for heat exchange. While the heat generated by the heating element 32 is transferred to the external heat-using equipment 8 for use, the hot water exchanged for heat transfer is recovered and used again to exchange heat with the heating element 32, which can effectively improve the energy utilization rate and material utilization rate of the cooling water equipment 1.

[0056] Furthermore, such as Figure 3 As shown in a specific embodiment of this application, the chilled water equipment 1 is further provided with a hot water exchange circuit 7, in which water circulates and is thermally connected to the heating element 32. The inlet water pipe 5 includes a low-temperature water circuit 51 and a high-temperature water circuit 52. The low-temperature water circuit 51 is used to connect the water source and the hot water exchange circuit 7, the high-temperature water circuit 52 connects the hot water exchange circuit 7 and the inlet end 21, and the return port 62 connects to the hot water exchange circuit 7.

[0057] In the structure provided in this specific embodiment, after the hot water flows through the hot water pipe 81 and exchanges heat with the external heat-using equipment 8, the hot water that returns through the return port 62 can be input into the hot water exchange circuit 7. Thus, while the heat generated by the heating element 32 is transferred to the external heat-using equipment 8 for use, the hot water used for heat transfer is recovered and input into the hot water exchange circuit 7 again to exchange heat with the heating element 32, which can effectively improve the energy utilization rate and material utilization rate of the cooling water equipment 1.

[0058] like Figure 3As shown in a specific embodiment of this application, the hot water exchange path 7 includes a circulating water path 71 and a hot water exchange chamber 72. The circulating water path 71 includes a high-temperature end 712 and a low-temperature end 711, and water flows from the low-temperature end 711 to the high-temperature end 712 within the circulating water path 71. The low-temperature end 711 of the circulating water path 71 connects to the bottom of the hot water exchange chamber 72, and the high-temperature end 712 of the circulating water path 71 connects to the top of the hot water exchange chamber 72. At least one of the circulating water path 71 and the hot water exchange chamber 72 is thermally connected to the heating element 32. The low-temperature water path 51 connects to the low-temperature end 711, and the high-temperature water path 52 connects to the high-temperature end 712 and the water inlet 21. The return port 62 connects to the low-temperature end 711 and / or the bottom of the hot water exchange chamber 72.

[0059] In the hot water exchange circuit 7, water from the low-temperature water circuit 51 or the bottom of the hot water exchange chamber 72 enters the circulating water circuit 71 from the low-temperature end 711. During its flow along the circulating water circuit 71 towards the high-temperature end 712, it exchanges heat with the heating element 32. Therefore, the water temperature at the low-temperature end 711 is lower, and the water temperature at the high-temperature end 712 is higher. The higher-temperature water can enter the high-temperature water circuit 52 or the top of the hot water exchange chamber 72 from the high-temperature end 712. As the water moves from the top to the bottom of the hot water exchange chamber 72, its temperature decreases, causing the lower-temperature water to return from the low-temperature end 711 to the circulating water circuit 71.

[0060] Specifically, such as Figure 2 , Figure 3 As shown, the chilled water equipment 1 may specifically include a circulation pump 713, which is connected to the circulation water circuit 71. The circulation pump 713 is used to drive the water in the heat exchange water circuit 7 to circulate. When the circulation pump 713 is started, the water in the circulation water circuit 71 flows from the low temperature end 711 to the high temperature end 712, and the water in the heat exchange water chamber 72 flows from the top of the heat exchange water chamber 72 to the bottom of the heat exchange water chamber 72.

[0061] In the structure provided in this specific embodiment, after the hot water flows through the hot water pipe 81 and exchanges heat with the external heat-using equipment 8, the temperature will drop to a certain extent. The hot water is fed into at least one of the bottom of the hot water exchange chamber 72 and the low-temperature end 711 through the return port 62. This can prevent the lower-temperature hot water from directly mixing with the higher-temperature part of the water in the hot water exchange circuit 7, thus avoiding disruption of the temperature change trend of the water in the hot water exchange circuit 7. At the same time, the lower-temperature hot water can be used together with the lower-temperature part of the water in the hot water exchange circuit 7 to exchange heat with the heating element 32, thereby reducing the average temperature of the water in the hot water exchange circuit 7. This improves the heat exchange efficiency of the hot water exchange circuit 7 while recovering the hot water, and further improves the cooling water efficiency of the cooling water equipment 1 on the basis of improving the energy utilization rate and material utilization rate of the cooling water equipment 1.

[0062] See Figures 4-6 , Figure 4 This is a schematic diagram of the assembly structure of the cold water tank, heat exchanger, and hot water tank provided in this application. Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure shown in section AA. Figure 6 yes Figure 4 The cross-sectional view shown in section BB is a schematic diagram. The cold water cavity 42 can be formed inside the cold water tank 42a, the circulating water circuit 71 that exchanges heat with the heating element 32 can be set inside the heat exchanger 93, and the hot water cavity 72 can be formed inside the hot water tank 72a.

[0063] The refrigeration unit 3 is connected to the cold water tank 42a and the heat exchanger 93, with the refrigeration unit 31 facing into the cold water cavity 42, and the heating unit 32 thermally connected to the heat exchanger 93. Part of the circulating water path 71 is located inside the heat exchanger 93 for thermal connection with the heating unit 32, and the remaining circulating water path 71 is formed in a pipeline, with one end of the pipeline connected to the heat exchanger 93 and the other end connected to the hot water tank 72a, so that the circulating water path 71 in the pipeline can communicate with the hot water cavity 72 inside the hot water tank 72a.

[0064] Because water with higher temperatures has lower density, the water in the hot water exchange chamber 72 exhibits a temperature distribution trend of gradually increasing from bottom to top. For example... Figure 6 As shown, in the vertical direction, a pipe with a high-temperature end 712 is connected to the upper end of the hot water exchange tank 72a, so that the high-temperature hot water output from the high-temperature end 712 can enter the upper layer of the hot water exchange cavity 72. A pipe with a low-temperature end 711 is connected to the lower end of the hot water exchange tank 72a, so that the circulating water circuit 71 can obtain low-temperature hot water from the lower layer of the hot water exchange cavity 72 through the low-temperature end 711, which is consistent with the temperature distribution of the water in the hot water exchange cavity 72.

[0065] Optionally, see Figure 1 , Figure 2 , Figure 3 The cooling water equipment 1 may also be equipped with a return water path 73, which is used to directly introduce the water output from the filter element 2 into the heat exchange water path 7 or the inlet water pipe 5, so that it can be used to exchange heat and cool the heating element 32. Figure 1 In the middle, one end of the return water path 73 is connected to the purified water outlet 22, and the other end of the return water path 73 is connected to the heat exchange chamber 72 and is located at the bottom of the heat exchange chamber 72. The water with a lower temperature output from the filter element 2 can be input into the bottom of the heat exchange chamber 72 so that it can enter the circulating water path 71 for heat exchange.

[0066] exist Figure 2In the middle, one end of the return water path 73 is connected to the purified water outlet 22, and the other end of the return water path 73 is connected to the low temperature water path 51 of the inlet water path. The water with a lower temperature output from the filter element 2 can be input into the low temperature end 711 of the circulating water path 71 through the low temperature water path 51, so that it can be used to exchange heat for the heating element 32.

[0067] exist Figure 3 In the middle, one end of the return water path 73 is connected to the wastewater outlet 23, and the other end of the return water path 73 is connected to the heat exchange chamber 72 and is located at the bottom of the heat exchange chamber 72. The water with a lower temperature output from the filter element 2 can be input into the bottom of the heat exchange chamber 72 so that it can enter the circulating water path 71 for heat exchange.

[0068] Optionally, the chilled water equipment 1 may also be provided with a water inlet channel 92, in which a water inlet valve body 921 is connected. When the water inlet valve body 921 is connected, water from an external water source can be input into the chilled water equipment 1 through the water inlet channel 92 for the preparation of chilled water and / or heat exchange.

[0069] See Figure 2 The water inlet channel 92 can connect to the water inlet end 21 of the filter element 2, thereby allowing water from an external water source to enter the filter element 2, and then be discharged into various water circuits through the clean water outlet end 22 and wastewater outlet end 23 of the filter element 2. (See reference...) Figure 3 The water inlet channel 92 can be connected to the low-temperature water channel 51 of the water inlet passage, so that water from an external water source can be input into the water inlet passage, so that it can be input into the filter element 2 after exchanging heat with the heating element 32, and then input into each water channel through the clean water outlet 22 and the waste water outlet 23 of the filter element 2.

[0070] In this application, the terms "embodiment" and "implementation" mean that a specific feature, part, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, parts, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A chilled water plant, characterized by, include: The filter element (2) is provided with a water inlet (21), a clean water outlet (22), and a wastewater outlet (23); The refrigeration component (3) is provided with a refrigeration section (31) and a heating section (32); The cooling water circuit (4) is thermally connected to the cooling unit (31); The water inlet pipe (5) passes through the heating element (32) and is connected to the water inlet end (21); The hot water outlet pipe (61) is connected at one end to the purified water outlet (22) and / or the wastewater outlet (23), and at the other end to output hot water.

2. The chilled water plant of claim 1, wherein, One end of the cooling water circuit (4) is connected to the purified water outlet (22), and the other end is used to connect to the cold water outlet channel (91).

3. The chilled water plant of claim 1, wherein, The hot water outlet pipe (61) includes a purified water outlet pipe (611), one end of which is connected to the purified water outlet end (22), and the other end is used to connect to the drinking water pipe (811) of the external heating equipment (8).

4. The chilled water plant of claim 1, wherein, The hot water outlet pipe (61) includes a domestic water outlet pipe (612), one end of which is connected to the wastewater outlet (23), and the other end is used to connect to the domestic water pipe (812) of the external heating equipment (8).

5. The chilled water plant of any one of claims 1-4, wherein, The hot water outlet pipe (61) is used to connect one end of the hot water pipe (81). The chilled water equipment (1) also includes a return port (62), which is connected to at least one of the inlet pipe (5), the inlet end (21), and the chilled water circuit (4). The return port (62) is also used to connect the other end of the hot water pipe (81).

6. The chilled water equipment according to claim 5, characterized in that, One end of the hot water outlet pipe (61) is connected to the purified water outlet (22), and the return port (62) is used to connect the hot water pipe (81) and the cooling water pipe (4).

7. The chilled water equipment according to claim 6, characterized in that, The cooling water circuit (4) includes a cooling water inlet circuit (41), a cold water chamber (42), and a cooling water outlet circuit (43). The cooling water inlet circuit (41) is connected to the cold water chamber (42), and the cold water chamber (42) is thermally connected to the cooling unit (31). The cooling water outlet circuit (43) is used to output the cold water prepared in the cold water chamber (42). The return port (62) is used to connect the hot water pipe (81) and the cooling water inlet circuit (41) and / or the cold water chamber (42).

8. The chilled water equipment according to claim 5, characterized in that, One end of the hot water outlet pipe (61) is connected to the wastewater outlet (23), and the return port (62) is used to connect the end of the water inlet pipe (5) away from the water inlet (21) and the hot water pipe (81).

9. The chilled water equipment according to claim 5, characterized in that, The cooling water equipment (1) is also provided with a hot water exchange circuit (7), in which water circulates. The hot water exchange circuit (7) is thermally connected to the heating element (32). The water inlet pipe (5) includes a low-temperature water circuit (51) and a high-temperature water circuit (52). The low-temperature water circuit (51) is used to connect the water source and the hot water exchange circuit (7). The high-temperature water circuit (52) connects the hot water exchange circuit (7) and the water inlet (21). The return port (62) is also connected to the hot water exchange circuit (7).

10. The chilled water equipment according to claim 9, characterized in that, The hot water exchange circuit (7) includes a circulating water circuit (71) and a hot water exchange chamber (72). The circulating water circuit (71) includes a high-temperature end (712) and a low-temperature end (711). Water in the circulating water circuit (71) flows from the low-temperature end (711) to the high-temperature end (712). The low-temperature end (711) of the circulating water circuit (71) is connected to the bottom of the hot water exchange chamber (72), and the high-temperature end (712) of the circulating water circuit (71) is connected to the top of the hot water exchange chamber (72). The circulating water circuit (71) and / or the hot water exchange chamber (72) are thermally connected to the heating element (32). The low-temperature water path (51) is connected to the low-temperature end (711), the high-temperature water path (52) is connected to the high-temperature end (712) and the water inlet end (21), and the return port (62) is connected to the bottom of the low-temperature end (711) and / or the hot water exchange chamber (72).

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