Water supply device

Abstract

The invention discloses a water supply device which comprises at least one cooling and heating all-in-one machine, and each cooling and heating all-in-one machine communicates with a water return pipe and a water supply pipe. Two connectors of the primary side of the heat exchanger are communicated with the water supply pipe; one connector of the first side of the first water storage tank is communicated with a water source inlet pipe of the water supply device, the other connector of the first side of the first water storage tank is communicated with a hot water outlet pipe of the water supply device, and the second side of the first water storage tank is communicated with the secondary side of the heat exchanger; one connector of the first side of the second water storage tank is communicated with a water source inlet pipe of the water supply device, the other connector of the first side of the first water storage tank is communicated with a cold water outlet pipe of the water supply device, and two connectors of the second side of the second water storage tank are communicated with the water return pipe and the water supply pipe respectively. According to the scheme, when the tap water temperature or the solar water temperature is too high, the effects that the water temperature is effectively reduced, the comfort of a user is improved, and the water temperature is kept constant at the extremely low temperature can be achieved.

Description

Technical Field

[0001] This application belongs to the technical field of cold and hot water supply, and particularly relates to a water supply device. Background Art

[0002] In existing household and commercial water systems, the control and regulation of water temperature have always been one of the key issues of concern to users. Traditional tap water supply systems often cannot accurately control the water temperature. Especially in summer, due to the high ambient temperature, the tap water temperature will also rise accordingly, which not only affects the comfort of users during use but may also cause discomfort to some people with sensitive skin. Similarly, although solar water heating systems have significant advantages in environmental protection and energy conservation, in sunny seasons or regions, the hot water temperature generated by solar water heaters is too high, which will also cause discomfort to users during use and limit their application scope and user satisfaction.

[0003] On the other hand, under extreme low-temperature conditions, traditional water systems often have difficulty ensuring the continuous and stable supply of cold and hot water. Due to problems such as frozen pipes and reduced water heater efficiency caused by low temperature, users often face the dilemma of insufficient hot water or interrupted cold water supply, which not only affects users' daily lives but may also damage the overall performance of the water system.

[0004] Therefore, developing a water supply device or system that can intelligently adjust the water temperature, reduce the water temperature under high-temperature conditions to improve user comfort, and ensure the stable supply of cold and hot water under low-temperature conditions has become an urgent technical problem to be solved. Summary of the Invention

[0005] The embodiments of this application provide an implementation solution different from the related art to solve the technical problem that there is no water supply system in the related art that can both reduce the water temperature under high-temperature conditions to improve user comfort and ensure the stable supply of cold and hot water under low-temperature conditions.

[0006] In a first aspect, this application provides a water supply device, including:

[0007] At least one cold and hot integrated machine, each of which is connected to a return pipe and a supply pipe;

[0008] A heat exchanger, two interfaces on the primary side of the heat exchanger are connected to the supply pipe;

[0009] A first water storage tank, one interface on the first side of the first water storage tank is connected to the water source inlet pipe of the water supply device, another interface on the first side of the first water storage tank is connected to the hot water outlet pipe of the water supply device, and the second side of the first water storage tank is connected to the secondary side of the heat exchanger;

[0010] A second water storage tank, one interface on the first side of the second water storage tank is communicated with the water source inlet pipe of the water supply device, another interface on the first side of the first water storage tank is communicated with the cold water outlet pipe of the water supply device, and two interfaces on the second side of the second water storage tank are respectively communicated with the return pipe and the water supply pipe.

[0011] The water supply device solution provided by this application uses at least one hot and cold integrated machine to refrigerate or heat according to the actual water temperature demand, ensuring that the water temperature is always within the appropriate range required by the user. The water temperature is further adjusted through the heat exchanger to improve the accuracy and efficiency of water temperature adjustment. The first water storage tank and the second water storage tank are set to store hot water and cold water respectively, serving as buffer and adjustment devices to ensure the stability and continuity of the water supply system. Thus, when the tap water temperature or solar water temperature is too high, through the refrigeration function of the hot and cold integrated machine and the heat exchange effect of the heat exchanger, the water temperature is effectively reduced, improving the comfort of user use. Under extreme low temperature conditions, the water temperature is kept constant, ensuring that suitable cold and hot water is continuously and constantly provided for users. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0013] Figure 1 It is the first structural schematic diagram of a water supply device provided by an exemplary embodiment of this application;

[0014] Figure 2 It is the second structural schematic diagram of a water supply device provided by an exemplary embodiment of this application. Detailed Description of the Embodiments

[0015] The following will describe in detail the embodiments of this application, and the examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application.

[0016] In recent years, the global temperature has generally risen, and the desert areas have experienced particularly significant temperature increases. The average surface temperature can reach as high as 60 to 80 degrees Celsius in some periods. Against this background, photovoltaic new energy has been widely promoted and applied in the vast desert areas. However, in seasons or regions with strong sunlight, the hot water temperature produced by solar water heaters is often too high, which directly causes discomfort to users when using, and thus limits the application range of solar water heaters and the overall satisfaction of users.

[0017] To solve the above technical problems, the present application provides a water supply device, which is used to solve the technical problem that there is no water supply system in the related art that can both reduce the water temperature under high temperature conditions to improve user comfort and ensure the stable supply of cold and hot water under low temperature conditions.

[0018] The following uses specific embodiments to elaborate in detail on the technical solution of the present application and how the technical solution of the present application solves the above technical problems. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0019] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of a water supply device provided by an exemplary embodiment of the present application. The structure at least includes:

[0020] At least one cold and hot integrated machine 110, and each cold and hot integrated machine 110 is connected to the return water pipe 120 and the water supply pipe 130;

[0021] A heat exchanger 140, and two interfaces on the primary side of the heat exchanger 140 are connected to the water supply pipe 130;

[0022] A first water storage tank 150, one interface on the first side of the first water storage tank 150 is connected to the water source inlet pipe 170 of the water supply device, another interface on the first side of the first water storage tank 150 is connected to the hot water outlet pipe 180 of the water supply device, and the second side of the first water storage tank 150 is connected to the secondary side of the heat exchanger 140;

[0023] A second water storage tank 160, one interface on the first side of the second water storage tank 160 is connected to the water source inlet pipe 170 of the water supply device, another interface on the first side of the first water storage tank 150 is connected to the cold water outlet pipe 190 of the water supply device, and two interfaces on the second side of the second water storage tank 160 are respectively connected to the return water pipe and the water supply pipe 130.

[0024] In this embodiment, in the first aspect, in summer or tropical regions, the water source provided by the water source inlet pipe 170 may be tap water or water heated by solar energy, and the water temperature is relatively high, affecting the comfort of user use. At this time, the cold and hot integrated machine 110 can reduce the water temperature through its refrigeration function, so that the temperature of the water in the water supply pipe 130 is maintained at a relatively low temperature (for example, 20 to 25 °C or adjusted according to user needs) to meet the user's demand for hot water at a suitable temperature.

[0025] Specifically, when the hot and cold integrated machine 110 starts the refrigeration mode, low-temperature water is sent into the water supply pipe 130. As a result, the relatively high-temperature water that enters the first water storage tank 150 through the water source inlet pipe 170 can transfer heat with the relatively low-temperature water in the water supply pipe 130 through the heat exchanger 140, achieving the cooling of the water in the first water storage tank 150. Thus, the first water storage tank 150 can discharge hot water at an appropriate temperature through the hot water outlet pipe 180, ensuring the user's demand for hot water at an appropriate temperature (such as 37 to 44 °C) in hot weather. In addition, the relatively low-temperature water in the water supply pipe 130 flows into the second water storage tank 160, realizing the cooling treatment of the relatively high-temperature water that enters the second water storage tank 160 through the water source inlet pipe 170. As a result, the second water storage tank 160 can discharge cold water at a relatively low temperature (such as 20 to 25 °C) through the cold water outlet pipe 190, ensuring the user's demand for cold water in hot weather.

[0026] On the other hand, in winter or cold regions, due to insufficient sunlight and cold weather in winter, the water source temperature provided by the water source inlet pipe 170 is relatively low, affecting the comfort of user use, especially for the more urgent demand for hot water. At this time, the hot and cold integrated machine 110 can increase the water temperature through the heating function, so that the temperature of the water in the water supply pipe 130 remains at a relatively high temperature (such as 45 to 50 °C or adjusted according to user needs) to meet the user's demand for hot water at an appropriate temperature.

[0027] Specifically, when the hot and cold integrated machine 110 starts the heating mode, it receives the relatively low-temperature return water that has been used from the return pipe 120. After heating, it sends high-temperature water into the water supply pipe 130. In winter, since the tap water temperature is relatively low, the water that enters the first water storage tank 150 through the water source inlet pipe 170 is relatively low in temperature itself. At this time, the primary side of the heat exchanger 140 is connected to the water supply pipe 130 to receive the high-temperature hot water from the hot and cold integrated machine 110, and the secondary side of the heat exchanger 140 is connected to the first water storage tank 150. Through heat transfer, the heat of the high-temperature hot water is transferred to the water in the first water storage tank 150, further increasing the temperature of the water in the first water storage tank 150 and ensuring that the hot water discharged through the hot water outlet pipe 180 is at an appropriate temperature to meet the user's demand for high-temperature hot water in cold weather. In addition, the high-temperature water in the water supply pipe 130 also flows into the second water storage tank 160, realizing the temperature increase treatment of the relatively low-temperature water that enters the second water storage tank 160 through the water source inlet pipe 170 and adjusting it to a relatively mild temperature range. In this way, through the cold water outlet pipe 190, the second water storage tank 160 can discharge warm water at a moderate temperature suitable for the user as domestic water in winter, neither too hot nor too cold.

[0028] In some embodiments, in cold weather, the second water storage tank 160 can also act as an expansion tank and a domestic storage tank.

[0029] The number of the integrated cooling and heating machine 110 can be increased or decreased according to the water temperature demand.

[0030] In some embodiments, the integrated cooling and heating machine 110 is an air-cooled heat pump host, and the air-cooled heat pump host realizes refrigeration and heating by absorbing heat from the air or discharging heat into the air.

[0031] In some embodiments, in winter, the municipal heat source can also be used as the heat source.

[0032] In some embodiments, the heat exchanger 140 is a plate heat exchanger.

[0033] Please refer to Figure 2 , Figure 2 , which is the second schematic structural diagram of the water supply device provided by the embodiment of the present application.

[0034] In some embodiments, the second side of the first water storage tank 150 is communicated with the secondary side of the heat exchanger 140 through a first branch 210 and a second branch 220; a first water pump 230 is provided on the first branch or the second branch, and the first water pump 230 is used to make the water in the first water storage tank 150 enter the heat exchanger 140 through the first branch 210 or the second branch 220.

[0035] As Figure 2 shown, specifically, a first water pump 230 is provided on the second branch 220. When the first water pump 230 is turned on, the water in the first water storage tank 150 can flow into the heat exchanger 140 through the second branch 220 for heating or cooling, and the heated or cooled water returns to the first water storage tank 150 through the first branch 210.

[0036] In some embodiments, the two interfaces on the primary side of the heat exchanger 140 are communicated with the water supply pipe 130 through a heat transfer medium input pipe 240 and a heat transfer medium discharge pipe 250. The heat transfer medium input pipe 240 is communicated with the water supply pipe 130 at a first branch point 001, and the heat transfer medium discharge pipe 250 is communicated with the water supply pipe 130 at a second branch point 002.

[0037] Specifically, the high-temperature water or low-temperature water in the water supply pipe 130 enters the heat transfer medium input pipe 240 from the first branch point 001, and the water after heat exchange is discharged from the heat transfer medium discharge pipe 250 through the second branch point 002 to the water supply pipe 130 and then flows into the return pipe 120 subsequently.

[0038] In some embodiments, the water supply device further includes:

[0039] a first control valve 260, and the first control valve 260 is arranged between the first branch point 001 and the second branch point 002;

[0040] The second control valve 270, and the first control valve 270 is provided on the heat exchange medium discharge pipe 250.

[0041] Specifically, the first control valve 260 and the second control valve 270 can be used to adjust the water flow rate entering the heat exchanger 140, so as to achieve temperature control for the first water storage tank 150.

[0042] For example, when the temperature of the water in the first water storage tank 150 in summer is not higher than the hot water supply temperature required by the user or when the temperature of the water in the first water storage tank 150 in winter is not lower than the hot water supply temperature required by the user, at this time, it is not necessary to use the heat exchanger 140 to cool or heat the water in the first water storage tank 150, then the first water pump 230 can be closed, the first control valve 260 can be fully opened, and the second control valve 270 can be closed; when the temperature of the water in the first water storage tank 150 in summer is higher than the hot water supply temperature required by the user or when the temperature of the water in the first water storage tank 150 in winter is lower than the hot water supply temperature required by the user, at this time, it is necessary to use the heat exchanger 140 to cool or heat the water in the first water storage tank 150, then the first water pump 230 can be opened, the first control valve 260 can be adjusted smaller, and the second control valve 270 can be adjusted larger, so that the water flow rate entering the heat exchanger 140 increases and the bypass flow rate decreases, realizing the cooling or heating treatment of the water in the first water storage tank 150.

[0043] In some embodiments, the water supply device further includes:

[0044] A return water branch pipe 280, the return water branch pipe 280 communicates with the water supply pipe 130 and the return water pipe 120, the return water branch pipe 280 communicates with the water supply pipe 130 at the third branch point 003, and the return water branch pipe 280 communicates with the return water pipe 120 at the fourth branch point 004.

[0045] In some embodiments, the water supply device further includes:

[0046] A third control valve 290, the third control valve 290 is provided between the interface on the second side of the second water storage tank 160 and the third branch point 003;

[0047] A fourth control valve 310, the fourth control valve 310 is provided on the return water branch pipe 280.

[0048] Specifically, the third control valve 290 and the fourth control valve 310 can be used to control whether the low-temperature water or high-temperature water in the water supply pipe 130 enters the second water storage tank 160, so as to achieve temperature control for the second water storage tank 150.

[0049] For example, when the temperature of the water in the second water storage tank 160 in summer is not higher than the cold water supply temperature required by the user or when the temperature of the water in the second water storage tank 160 in winter is not lower than the cold water supply temperature required by the user, there is no need to cool or heat the water in the second water storage tank 160 at this time, so the third control valve 290 can be closed and the fourth control valve 310 can be opened; when the temperature of the water in the second water storage tank 160 in summer is higher than the cold water supply temperature required by the user or when the temperature of the water in the second water storage tank 160 in winter is lower than the cold water supply temperature required by the user, it is necessary to cool or heat the water in the second water storage tank 160 at this time, so the third control valve 290 can be opened and the fourth control valve 310 can be closed, so that the low-temperature water or high-temperature water in the water supply pipe 130 enters the second water storage tank 160 to realize the cooling or heating treatment of the water in the second water storage tank 160.

[0050] In some embodiments, the water supply device further includes:

[0051] A second water pump 320 is provided on the return pipe 120, and the second water pump 320 is used to make the water in the water supply pipe 130 enter the return pipe 120.

[0052] In some embodiments, the water supply device further includes:

[0053] A third water pump 330 is provided on the hot water outlet pipe 180 of the water supply device, and the third water pump 330 is used to discharge the water in the first water storage tank 150 through the hot water outlet pipe 180 of the water supply device;

[0054] A fourth water pump 340 is provided on the cold water outlet pipe 190 of the water supply device, and the fourth water pump 340 is used to discharge the water in the second water storage tank 160 through the cold water outlet pipe 190 of the water supply device.

[0055] The solution of the water supply device provided by the present application uses at least one cold and hot integrated machine 110 to perform refrigeration or heating according to the actual water temperature requirements, ensuring that the water temperature is always within the appropriate range required by the user. The water temperature is further adjusted through the heat exchanger 140 to improve the accuracy and efficiency of water temperature adjustment. The first water storage tank 150 and the second water storage tank 160 are provided to store hot water and cold water respectively, as buffer and adjustment devices, ensuring the stability and continuity of the water supply system, so as to achieve the technical effect of effectively reducing the water temperature through the refrigeration function of the cold and hot integrated machine 110 and the heat exchange effect of the heat exchanger 140 when the tap water temperature or solar water temperature is too high, improving the comfort of user use, and keeping the water temperature constant under extreme low temperature conditions, ensuring continuous and constant supply of suitable cold and hot water for users.

[0056] In this application, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "plural" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "joined" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application.

[0058] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means 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. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0059] The above 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 by this application can easily think of changes or substitutions, which should all be covered by 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 water supply device, characterized in that: include: At least one integrated cold and hot machine, each of which is connected to a water return pipe and a water supply pipe; A heat exchanger, wherein two interfaces on the primary side of the heat exchanger are connected to the water supply pipe; a first water storage tank, wherein an interface on a first side of the first water storage tank is connected to a water source water inlet pipe of the water supply device, another interface on the first side of the first water storage tank is connected to a hot water outlet pipe of the water supply device, and a second side of the first water storage tank is connected to a secondary side of the heat exchanger; A second water storage tank, an interface on the first side of the second water storage tank is connected to the water source inlet pipe of the water supply device, another interface on the first side of the first water storage tank is connected to the cold water outlet pipe of the water supply device, and two interfaces on the second side of the second water storage tank are respectively connected to the return pipe and the water supply pipe.

2. The water supply device according to claim 1, characterized in that: The integrated cooling and heating machine is an air-cooled heat pump host.

3. The water supply device according to claim 1, characterized in that: The second side of the first water storage tank is in communication with the secondary side of the heat exchanger via a first branch and a second branch; A first water pump is disposed on the first branch or the second branch, and the first water pump is used to allow water in the first water storage tank to enter the heat exchanger through the first branch or the second branch.

4. The water supply device according to claim 1, characterized in that: The two interfaces on the primary side of the heat exchanger are connected to the water supply pipe through a heat exchange medium input pipe and a heat exchange medium discharge pipe. The heat exchange medium input pipe is connected to the water supply pipe at a first branch point, and the heat exchange medium discharge pipe is connected to the water supply pipe at a second branch point.

5. The water supply device according to claim 4, characterized in that: The device also includes: a first control valve, the first control valve being disposed between the first branch point and the second branch point; A second control valve, wherein the first control valve is arranged on the heat exchange medium discharge pipe.

6. The water supply device according to claim 1, characterized in that: Also includes: A water return branch pipe is connected to the water supply pipe and the water return pipe, the water return branch pipe is connected to the water supply pipe at a third branch point, and the water return branch pipe is connected to the water return pipe at a fourth branch point.

7. The water supply device according to claim 6, characterized in that: Also includes: a third control valve, the third control valve being arranged between the interface on the second side of the second water storage tank and the third branch point; A fourth control valve is arranged on the return water branch pipe.

8. The water supply device according to claim 1, characterized in that: Also includes: A second water pump is provided on the water return pipe, and is used for allowing water in the water supply pipe to enter the water return pipe.

9. The water supply device according to claim 1, characterized in that: Also includes: a third water pump, the third water pump being arranged on the hot water outlet pipe of the water supply device, and the third water pump being used to discharge the water in the first water storage tank through the hot water outlet pipe of the water supply device; A fourth water pump, wherein the fourth water pump is disposed on the cold water outlet pipe of the water supply device, and the fourth water pump is used to discharge the water in the second water storage tank through the cold water outlet pipe of the water supply device.

10. The water supply device according to claim 1, characterized in that: The heat exchanger is a plate heat exchanger.

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