Hot water supply system

Abstract

The utility model discloses a hot water supply system which comprises a heat pump connected with a circulating water pump and a heat preservation water tank. The tap water source is connected with the circulating water pump to supply a water source; the circulating water pump is connected with the pipe water backflow structure; the heat preservation water tank is used for storing hot water conveyed by the heat pump; the water outlet pump is connected with the heat preservation water tank and used for pumping hot water in the heat preservation water tank; one end of the water outlet pipe is connected with the water outlet pump; the pipe water backflow structure is connected with the water outlet pipe; the card swiping machine is connected with the water outlet pipe; and the card swiping machine and the heat pump are electrically connected with the control module. According to the hot water supply system, cold water between the heat preservation water tank and the water outlet can flow back and be reheated, waste caused by the fact that a user drains up the cold water between the heat preservation water tank and the water outlet is avoided, and the time for waiting for hot water use of the user is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of water supply system technology, and specifically relates to a hot water supply system. Background Technology

[0002] Currently, both public systems in entire buildings and individual household water heaters exhibit water waste. When using hot water, there's a waiting time, and often, cold water in the pipes between the water heater and the tap is wasted. Draining cold water through taps is a waste of water resources, especially in winter when hot water is used throughout the building, and this waste is particularly severe due to the waiting time. Utility Model Content

[0003] The purpose of this invention is to provide a hot water supply system that can recirculate and reheat the cold water between the insulated water tank and the outlet, thereby preventing users from wasting the cold water between the insulated water tank and the outlet and reducing the time users spend waiting for hot water.

[0004] The specific technical solution is as follows:

[0005] A hot water supply system, comprising:

[0006] The heat pump is connected to both the circulating water pump and the insulated water tank.

[0007] The tap water source is connected to the circulating water pump to supply water.

[0008] The circulating water pump is connected to the water return structure.

[0009] Insulated water tanks are used to store hot water supplied by heat pumps.

[0010] The water pump is connected to the insulated water tank to pump hot water from the tank.

[0011] The water outlet pipe is connected at one end to the water pump.

[0012] The water recirculation structure is connected to the outlet pipe.

[0013] Card reader, connected to the water outlet pipe;

[0014] The control module, card reader, and heat pump are all electrically connected to the control module.

[0015] Preferably, a first solenoid valve is provided between the tap water source and the circulating water pump, and the first solenoid valve is connected to the control module.

[0016] Preferably, the insulated water tank is equipped with a temperature detection module, a sewage discharge structure, and a reflux structure. The temperature detection module is located on the inner wall of the bottom of the insulated water tank, the sewage discharge structure is located at the bottom of the insulated water tank, and the reflux structure is located on the bottom side wall of the insulated water tank.

[0017] Preferably, the sewage discharge structure includes a sewage discharge pipe and a second solenoid valve. The bottom of the insulated water tank is provided with a sewage discharge port. One end of the sewage discharge pipe is connected to the sewage discharge port, and the other end of the sewage discharge pipe extends outward. The second solenoid valve is installed on the sewage discharge pipe and is connected to the control module.

[0018] Preferably, the reflux structure includes a first reflux pipe, a third solenoid valve, and a check valve. The bottom side wall of the insulated water tank is provided with a reflux port. The first reflux pipe is connected to the reflux port and to the circulating water pump. The third solenoid valve and the check valve are installed on the first reflux pipe, and the third solenoid valve is connected to the control module.

[0019] Preferably, the water return structure includes a second return pipe, a transfer chamber, and a third return pipe. The second return pipe is connected to the outlet pipe, and the connection between the second return pipe and the outlet pipe is located upstream of the card reader. The second return pipe is connected to the transfer chamber, the transfer chamber is connected to the third return pipe, the third return pipe is connected to the circulating water pump, and a fourth solenoid valve is provided on the third return pipe. The fourth solenoid valve is connected to the control module.

[0020] Preferably, a second temperature sensor is provided at the connection between the second return pipe and the outlet pipe, and the second temperature sensor is connected to the control module.

[0021] Compared with existing technologies, this utility model has the following beneficial effects:

[0022] The hot water supply system of this invention can recirculate and reheat the cold water between the insulated water tank and the outlet, avoiding waste by users emptying the cold water between the insulated water tank and the outlet, and reducing the time users spend waiting for hot water. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic diagram of a hot water supply system.

[0025] Figure 2 This is a schematic diagram of a hot water supply system after the control module has been removed.

[0026] Figure 3 This is a schematic diagram showing the connection of the heat pump, the insulated water tank, and the outlet pipe.

[0027] Figure 4 This is a schematic diagram of the connection between the tap water source, circulating water pump, heat pump, and water return structure.

[0028] Among them, 1 is the tap water source, 2 is the circulating water pump, 3 is the heat pump, 4 is the insulated water tank, 5 is the outlet water pump, 6 is the card reader, 7 is the outlet water pipe, 8 is the water terminal, 9 is the second return pipe, 10 is the transfer warehouse, 11 is the second return pipe, 12 is the sewage discharge structure, 13 is the control module, 14 is the first solenoid valve, and 15 is the return structure. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0033] like Figures 1-4 As shown, this embodiment provides a hot water supply system, including:

[0034] Heat pump 3 is connected to circulating water pump 2 and insulated water tank 4. Heat pump 3 heats tap water through a heat source, which is the core of the hot water supply system and typically uses electric heating, gas heating, or solar heating. Electric heating is stable and reliable, but consumes a large amount of electricity; gas heating is relatively inexpensive, but safety issues must be considered; solar heating is green and environmentally friendly, but is greatly affected by weather conditions. Therefore, different heating methods, or combinations of different heating methods, can be used depending on different environments and needs.

[0035] Water source 1 is connected to circulating water pump 2 to supply water.

[0036] The circulating water pump 2 is connected to the pipe water return structure 15; the circulating water pump 2 is used to supply tap water source 1 to heat pump 3 for heating.

[0037] Insulated water tank 4 is used to store hot water supplied by heat pump 3; insulated water tank 4 adopts existing insulated tank or insulated box.

[0038] Water pump 5 is connected to insulated water tank 4 to pump hot water into the insulated water tank 4;

[0039] Water outlet pipe 7, one end of which is connected to water pump 5; water outlet pipe 7 is connected to water terminal 8, which includes water facilities such as shower and washbasin.

[0040] Water return structure 15 is connected to water outlet pipe 7; water return structure 15 is used to return cold water from the pipe in front of card reader 6 to the upstream of heat pump 3 for heating.

[0041] Card reader 6 is connected to water outlet pipe 7; card reader 6 is used to calculate the cost of hot water usage.

[0042] The control module 13, the card reader 6, and the heat pump 3 are all electrically connected to the control module 13.

[0043] The selection of the aforementioned pipe materials should take into account factors such as corrosion resistance, high temperature resistance, and service life.

[0044] A first solenoid valve 14 is provided between the tap water source 1 and the circulating water pump 2, and the first solenoid valve 14 is connected to the control module 13.

[0045] The insulated water tank 4 is equipped with a temperature detection module, a drain structure 12, and a reflux structure 15. The temperature detection module is located on the inner wall of the bottom of the insulated water tank 4, the drain structure 12 is located at the bottom of the insulated water tank 4, and the reflux structure 15 is located on the bottom side wall of the insulated water tank 4. The temperature detection module is an existing temperature sensor.

[0046] The sewage discharge structure 12 includes a sewage discharge pipe and a second solenoid valve. The bottom of the insulated water tank 4 has a sewage discharge port. One end of the sewage discharge pipe is connected to the sewage discharge port, and the other end extends outwards. The second solenoid valve is mounted on the sewage discharge pipe and is connected to the control module 13. The insulated water tank 4 is drained periodically to prevent excessive scale buildup at the bottom of the tank.

[0047] The reflux structure 15 includes a first reflux pipe, a third solenoid valve, and a check valve. A reflux port is located on the bottom side wall of the insulated water tank 4. The first reflux pipe is connected to the reflux port and to the circulating water pump 2. The third solenoid valve and check valve are mounted on the first reflux pipe, and the third solenoid valve is connected to the control module 13. The water temperature in the insulated water tank 4 is detected by a temperature detection module. If the water temperature in the insulated water tank 4 is lower than a threshold, the water in the insulated water tank 4 is pumped back to the heat pump 3 via the circulating water pump 2 for reheating.

[0048] The water return structure 15 includes a second return pipe 119, a transfer chamber 10, and a third return pipe. The second return pipe 119 is connected to the outlet pipe 7 via a three-way valve. The connection point between the second return pipe 119 and the outlet pipe 7 is located upstream of the card reader 6. The second return pipe 119 is connected to the transfer chamber 10, which in turn is connected to the third return pipe. The third return pipe is connected to the circulating water pump 2, and a fourth solenoid valve is installed on it. This fourth solenoid valve is connected to the control module 13. The cold water in the outlet pipe 7 is transported to the transfer chamber 10 via the second return pipe 119, facilitating the circulating water pump 2 to pump the water to the heat pump 3 for reheating. Alternatively, a water pump can be installed between the second return pipe 119 and the transfer chamber 10 to pump the cold water in the outlet pipe 7 to the transfer chamber 10.

[0049] A second temperature sensor is installed at the connection between the second return pipe 119 and the outlet pipe 7, and the second temperature sensor is connected to the control module 13. Specifically, the temperature sensor is located upstream of the three-way valve. The second temperature sensor detects the water temperature in the outlet pipe 7. According to the water temperature threshold preset by the control module 13, if the water temperature is lower than the threshold, the three-way valve closes the port to the card reader 6 and opens the port to the second return pipe 119, pumping the cold water in the outlet pipe 7 to the heat pump 3 for reheating. Conversely, if the water temperature reaches the threshold, the three-way valve opens the port to the card reader 6. This setting ensures that the water outlet of the water terminal 8 is hot, avoiding waste of the cold water in the outlet pipe 7. The second return pipe 119 is equipped with a fifth solenoid valve.

[0050] It should be noted that when there is no water pump 5 between the insulated water tank 4 and the outlet pipe 7, hot water is delivered by the water pressure of the insulated water tank 4. When the outlet pump 5 is installed, the water flow is continuously pumped through the outlet pump 5, so the end of the outlet pipe 7 needs to flow continuously to avoid the water flow from the outlet pipe 7 not being able to output, which would cause the pipe to burst. For example, it can be connected to the insulated water tank 4 for circulation, or it can be connected to the backup water storage tank for insulation.

[0051] The hot water supply system provided in this embodiment detects the water temperature through the outlet pipe 7. When the water temperature is lower than the threshold preset by the control module 13, the fifth solenoid valve opens, and the circulating water pump 2 starts to draw water. The cold water from the outlet pipe 7 flows to the transfer chamber 10 through the second return pipe 119, and then is drawn from the transfer chamber 10 to the heat pump 3. After being heated by the heat pump 3, it flows to the insulated water tank 4. Finally, the hot water in the insulated water tank 4 is delivered to the outlet pipe 7 by the outlet pump 5 and flows to the user terminal. Conversely, if the water source is detected to be within the threshold range, after swiping the card at the card reader 6, the outlet pump 5 directly pumps the hot water to the user terminal.

[0052] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A hot water supply system, characterized in that, include: The heat pump is connected to both the circulating water pump and the insulated water tank. The tap water source is connected to the circulating water pump to supply water. The circulating water pump is connected to the water return structure. Insulated water tanks are used to store hot water supplied by heat pumps. The water pump is connected to the insulated water tank to pump hot water from the tank. The water outlet pipe is connected at one end to the water pump. The water recirculation structure is connected to the outlet pipe. Card reader, connected to the water outlet pipe; The control module, card reader, and heat pump are all electrically connected to the control module.

2. A hot water supply system according to claim 1, characterized in that, A first solenoid valve is installed between the tap water source and the circulating water pump, and the first solenoid valve is connected to the control module.

3. A hot water supply system according to claim 1, characterized in that, The insulated water tank is equipped with a temperature detection module, a sewage discharge structure, and a reflux structure. The temperature detection module is located on the inner wall of the bottom of the insulated water tank, the sewage discharge structure is located at the bottom of the insulated water tank, and the reflux structure is located on the bottom side wall of the insulated water tank.

4. A hot water supply system according to claim 3, characterized in that, The sewage discharge structure includes a sewage discharge pipe and a second solenoid valve. The bottom of the insulated water tank is equipped with a sewage discharge port. One end of the sewage discharge pipe is connected to the sewage discharge port, and the other end of the sewage discharge pipe extends outward. The second solenoid valve is installed on the sewage discharge pipe and is connected to the control module.

5. A hot water supply system according to claim 3, characterized in that, The reflux structure includes a first reflux pipe, a third solenoid valve, and a check valve. The bottom side wall of the insulated water tank is provided with a reflux port. The first reflux pipe is connected to the reflux port and to the circulating water pump. The third solenoid valve and the check valve are installed on the first reflux pipe. The third solenoid valve is connected to the control module.

6. A hot water supply system according to claim 1, characterized in that, The water return structure includes a second return pipe, a transfer chamber, and a third return pipe. The second return pipe is connected to the outlet pipe, and the connection between the second return pipe and the outlet pipe is located upstream of the card reader. The second return pipe is connected to the transfer chamber, the transfer chamber is connected to the third return pipe, the third return pipe is connected to the circulating water pump, and a fourth solenoid valve is installed on the third return pipe. The fourth solenoid valve is connected to the control module.

7. A hot water supply system according to claim 6, characterized in that, A second temperature sensor is installed at the connection between the second return pipe and the outlet pipe, and the second temperature sensor is connected to the control module.

Images