Constant-temperature water supply system

Abstract

The utility model relates to the technical field of solar equipment, in particular to a constant-temperature water supply system which comprises a heat pump unit, a heat storage water tank, a user terminal, a controller, a heat pump loop, a water supply pipeline and a water return pipeline, a bypass pipeline is arranged between the water supply pipeline and the water return pipeline, and a first three-way valve is arranged between one end of the bypass pipeline and the water supply pipeline. A second three-way valve is arranged between the other end of the bypass pipeline and the water return pipeline, the heat pump unit efficiently provides heat energy according to user requirements and transmits heat to the heat storage water tank for heat storage, and it is guaranteed that the heat is supplied to a user terminal at any time; through adjustment of the water supply loop, the water return loop, the first three-way valve and the second three-way valve, the water supply temperature and the water quantity are adjusted according to actual requirements, and it is ensured that a user obtains needed constant-temperature water. The controller monitors the water temperature change in real time, controls the opening degree of the first three-way valve and the second three-way valve, and automatically adjusts to obtain the constant water supply temperature. The temperature is effectively prevented from being too high or too low, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat pump system technical field, concretely is a constant temperature water supply system. BACKGROUND

[0002] At present, the ordinary heat pump unit primary or secondary circulation system mainly relies on the heat storage water tank in the circulation system to maintain the stability of water circulation, makes the water route more stable, but the water used by the user terminal in the traditional installation mode is simply derived from the heat storage water tank, and the heat storage water tank is heated by the unit. In recent years, the development of frequency conversion unit is very rapid, but it is still difficult to accurately and effectively control the water supply temperature of the user, and it is urgent to solve these technical problems encountered in the use process. SUMMARY

[0003] In view of the deficiencies of the prior art, to solve the problems in the background art, the technical problem to be solved by the utility model is to provide a constant temperature water supply system controlled by various temperature sensors and controllers in view of the deficiencies of the prior art.

[0004] The technical problem to be solved by the utility model is realized through the following technical scheme, a constant temperature water supply system, comprising a heat pump unit, a heat storage water tank, a user terminal and a controller, a heat pump circuit is arranged between the heat pump unit and the heat storage water tank, a water supply circuit is arranged between the heat storage water tank and the user terminal, the water supply circuit comprises a water supply pipeline and a return water pipeline, a bypass pipeline is arranged between the water supply pipeline and the return water pipeline, a first three-way valve is arranged between one end of the bypass pipeline and the water supply pipeline, a second three-way valve is arranged between the other end of the bypass pipeline and the return water pipeline, a water supply valve is arranged between the water supply port of the heat storage water tank and the first three-way valve, a water supply thermometer is arranged on the water supply pipeline between the first three-way valve and the water terminal, a return water valve is arranged between the return water port of the heat storage water tank and the second three-way valve, a return water thermometer and a return water check valve are sequentially arranged along the return water direction between the second three-way valve and the water terminal, and the controller is communicatively connected with the first three-way valve and the second three-way valve.

[0005] The heat pump unit in the system efficiently provides heat energy according to the user demand, and transmits heat to the heat storage water tank for heat storage, so as to ensure that heat is supplied to the user terminal at any time; through the adjustment of the water supply circuit, the return water circuit and the first three-way valve and the second three-way valve, the water supply temperature and the water volume are adjusted according to the actual demand, so that the user obtains the required constant temperature water. The water temperature change is monitored in real time through the water supply thermometer and the return water thermometer in the whole process, so as to feed back to the controller, the controller controls the opening degree of the first three-way valve and the second three-way valve, and the constant water supply temperature is automatically adjusted.

[0006] As a further scheme of the utility model, the system comprises a heating mode and a refrigeration mode.

[0007] In the heating mode, the water temperature in the heat storage water tank is higher than the user terminal water temperature;

[0008] When the water temperature in the heat storage water tank rises, the controller controls the second three-way valve to increase the proportion of return water to the water supply pipeline, and controls the first three-way valve to increase the proportion of return water from the return water pipeline, so as to counterattack the water supply temperature and slowly increase the water supply temperature;

[0009] When the water temperature in the heat storage water tank drops, the controller controls the second three-way valve to reduce the proportion of return water to the water supply pipeline, and controls the first three-way valve to reduce the proportion of return water from the return water pipeline, so as to counterattack the water supply temperature and slowly decrease the water supply temperature. The system can dynamically adjust the water supply temperature by controlling the proportion of return water of the first three-way valve and the second three-way valve to the water supply pipeline and the return water pipeline according to the change of the water temperature in the heat storage water tank, so that the water supply temperature is maintained in a comfortable range, and temperature is effectively avoided. High or low, improve user experience.

[0010] As a further scheme of the utility model, in the refrigeration mode, the water temperature in the heat storage water tank is lower than the user terminal water temperature;

[0011] When the water temperature in the heat storage water tank rises, the controller controls the second three-way valve to increase the proportion of return water to the water supply pipeline, and controls the first three-way valve to increase the proportion of return water from the return water pipeline, so as to counterattack the water supply temperature and slowly increase the water supply temperature;

[0012] When the water temperature in the heat storage water tank drops, the controller controls the second three-way valve to reduce the proportion of return water to the water supply pipeline, and controls the first three-way valve to reduce the proportion of return water from the return water pipeline, so as to counterattack the water supply temperature and slowly decrease the water supply temperature. The system can dynamically adjust the water supply temperature by controlling the proportion of return water of the first three-way valve and the second three-way valve to the water supply pipeline and the return water pipeline according to the change of the water temperature in the heat storage water tank, so that the water supply temperature is maintained in a comfortable range, and temperature is effectively avoided. High or low, improve user experience.

[0013] As a further scheme of the utility model, the heat storage water tank is provided with a water tank temperature sensor and an electric heater extending into the heat storage water tank, and the water tank temperature sensor and the electric heater are connected with the controller in communication. The water tank temperature sensor can monitor the change of the water temperature in the heat storage water tank in real time and transmit data to the controller. The controller accurately adjusts the working state of the electric heater according to the data, effectively maintains the water temperature in a predetermined range, and avoids excessively high or low water temperature. The real-time monitoring and feedback mechanism greatly improves the accuracy and response speed of temperature control. The electric heater is automatically started and heated only when necessary through cooperation with the water tank temperature sensor, which is high in efficiency and energy saving.

[0014] As a further scheme of the utility model, the heat pump circuit comprises a water outlet pipeline and a water inlet pipeline, the water outlet pipeline is connected with the water inlet of the heat storage water tank, the water outlet pipeline is sequentially provided with a water outlet temperature sensor, a water flow switch and a water outlet manual valve along the water outlet direction, the water inlet pipeline is connected with the water outlet of the heat storage water tank, the water inlet pipeline is sequentially provided with a water inlet manual valve, a shielded water pump and a water inlet temperature sensor along the water inlet direction. The water outlet temperature sensor and the water inlet temperature sensor can respectively monitor the output of hot water and the temperature of backflow water in real time; the water flow switch can detect the state of water flow in real time, control the heat pump in real time, and realize the best heating effect. The water inlet manual valve and the water outlet manual valve manually close the water flow during system maintenance or troubleshooting, preventing the water flow from damaging the equipment.

[0015] As a further scheme of the utility model, the controller is respectively connected with the water supply valve, the water supply thermometer, the backwater valve, the backwater thermometer, the water outlet temperature sensor, the water flow switch, the shielded water pump and the water inlet temperature sensor, temperature and water flow signals are transmitted to the controller, the controller controls the opening and closing of the shielded water pump in real time, and the controller controls the opening degree of the first three-way valve and the second three-way valve. The controller can accurately control the opening and closing of the shielded water pump, avoid unnecessary water pump operation, and reduce energy waste. The accurate opening degree control of the first three-way valve and the second three-way valve realizes the best water flow distribution and temperature balance, and the valve opening degree is adjusted according to the change of water flow demand.

[0016] Compared with the prior art, the utility model has the beneficial effects that: the system comprises a heat pump unit, a heat storage water tank, a user terminal and a controller, a heat pump circuit is arranged between the heat pump unit and the heat storage water tank, a water supply circuit is arranged between the heat storage water tank and the user terminal, the water supply circuit comprises a water supply pipeline and a backwater pipeline, a bypass pipeline is arranged between the water supply pipeline and the backwater pipeline, a first three-way valve is arranged between one end of the bypass pipeline and the water supply pipeline, a second three-way valve is arranged between the other end of the bypass pipeline and the backwater pipeline, the heat pump unit efficiently provides heat energy according to user demand, and transmits heat to the heat storage water tank for heat storage, so that heat can be supplied to the user terminal at any time; through the adjustment of the water supply circuit, the backwater circuit and the first three-way valve and the second three-way valve, the water supply temperature and the water quantity can be adjusted according to actual demand, so that the user can obtain the required constant temperature water. The water temperature change is monitored in real time through the water supply thermometer and the backwater thermometer during the whole process, so as to be fed back to the controller, the opening degree of the first three-way valve and the second three-way valve is controlled by the controller, and the constant water supply temperature is automatically adjusted. The temperature is effectively prevented from being too high or too low, and the user experience is improved.

[0017] The water tank temperature sensor monitors changes in the water temperature inside the hot water storage tank in real time and transmits the data to the controller. Based on this data, the controller precisely adjusts the operating status of the electric heater, effectively maintaining the water temperature within a predetermined range and preventing it from becoming too high or too low. This real-time monitoring and feedback mechanism significantly improves the accuracy and response speed of temperature control. The electric heater, working in conjunction with the water tank temperature sensor, automatically activates heating only when necessary, resulting in high energy efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the system principle of this utility model.

[0019] In the diagram: 1-User terminal, 2-Return water pipe, 201-Return water thermometer, 202-Return water check valve, 203-Second three-way valve, 204-Return water valve, 3-Hot water storage tank, 301-Tank temperature sensor, 302-Electric heater, 4-Inlet water pipe, 401-Inlet manual valve, 402-Shielded water pump, 403-Inlet water temperature sensor, 5-Heat pump unit, 6-Outlet water pipe, 601-Outlet water temperature sensor, 602-Flow switch, 603-Outlet manual valve, 7-Supply water pipe, 8-Bypass pipe, 701-Supply water valve, 7020-First three-way valve, 703-Supply water thermometer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The serial numbers assigned to components in this document, such as "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application...

[0022] Unless otherwise specified, "connection" includes both direct and indirect connections. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 utility model and for 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 utility model.

[0023] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under", first and second features directly contact, or first and second features indirectly contact through intermediate medium.Moreover, first feature is "on", "above" and "on" of second feature, first feature can be directly above or obliquely above second feature, or only indicate that first feature horizontal height is higher than second feature.

[0024] Embodiment 1

[0025] As shown in the accompanying drawings, Figure 1 A constant temperature water supply system, comprising heat pump unit 5, heat storage water tank 3, user terminal 1 and controller, water tank temperature sensor 301 and electric heater 302 extending into heat storage water tank are arranged on the heat storage water tank, and water tank temperature sensor 301 and electric heater 302 are connected with the controller in communication.The water tank temperature sensor 301 monitors the water temperature in the heat storage water tank in real time and feeds back to the controller, and when the water temperature in the heat storage water tank is lower than the preset temperature, the electric heater 302 is started, the water temperature in the heat storage water tank 3 rises rapidly to the preset water temperature, and the electric heater 302 stops heating.

[0026] Heat pump circuit is arranged between heat pump unit 5 and heat storage water tank 3, the heat pump circuit comprises water outlet pipeline 6 and water inlet pipeline 4, the water outlet pipeline is connected with the water inlet of the heat storage water tank, and water outlet temperature sensor 601, water flow switch 602 and water outlet manual valve 603 are sequentially arranged in the water outlet pipeline along the water outlet direction, the heat pump unit 5 heats water to rise temperature, the water outlet manual valve 603 is opened, and the water rises temperature and is transported to the heat storage water tank 3 along the water outlet pipeline, the water outlet temperature is detected in real time by the water outlet temperature sensor 601 in the process of transportation along the water outlet pipeline, the water flow switch detects the water inlet flow in real time, and the water outlet temperature and the water inlet flow are fed back to the controller.

[0027] The water inlet pipeline 4 is connected with the water outlet of the heat storage water tank, and water inlet manual valve 401, shielding water pump 402 and water inlet temperature sensor 403 are sequentially arranged in the water inlet pipeline along the water inlet direction.When the water in the heat storage water tank needs to be heated by the heat pump circulation, the water inlet manual valve 401 and the shielding water pump 402 are opened, the shielding water pump drives the water in the heat storage water tank to circulate and return to the heat pump unit, and the water is heated again in the heat pump unit 5, and in the process of returning, the water inlet temperature sensor 403 detects the return water temperature and transmits it to the controller, and the controller controls the opening and closing of the shielding water pump 402 in real time.

[0028] The water supply circuit is provided between the heat storage water tank 3 and the user terminal 1, and comprises a water supply pipeline 7 and a return water pipeline 2. A bypass pipeline 8 is provided between the water supply pipeline and the return water pipeline. A first three-way valve 702 is provided between one end of the bypass pipeline and the water supply pipeline. A second three-way valve 203 is provided between the other end of the bypass pipeline and the return water pipeline. A water supply valve 701 is provided between the water supply port of the heat storage water tank and the first three-way valve. A water supply thermometer 703 is provided on the water supply pipeline between the first three-way valve 702 and the user terminal 1. A return water valve 204 is provided between the return water port of the heat storage water tank and the second three-way valve 203. A return water thermometer 201 and a return water check valve 202 are provided in sequence along the return water direction between the second three-way valve and the user terminal. The controller is communicatively connected with the first three-way valve 702 and the second three-way valve 203.

[0029] The controller is communicatively connected with the water supply valve 701, the water supply thermometer 703, the return water valve 204, the return water thermometer 201, the outlet water temperature sensor 601, the water flow switch 602, the screen water pump 402 and the inlet water temperature sensor 403, respectively, to transmit temperature and water flow signals to the controller, and the controller controls the opening degrees of the first three-way valve 702 and the second three-way valve 203, respectively.

[0030] Embodiment 2

[0031] The system comprises a heating mode and a cooling mode.

[0032] In the heating mode, the water temperature in the heat storage water tank 3 is higher than the water temperature in the user terminal.

[0033] The water temperature in the heat storage water tank 3 rises, and the water in the heat storage water tank 3 is transported to the user terminal along the liquid supply pipeline, so that the water temperature in the user terminal rises rapidly, which brings a poor water experience to the user terminal.

[0034] The controller controls the second three-way valve 203 to increase the proportion of the return water flowing into the water supply pipeline, and controls the second three-way valve 203 to increase the proportion of the return water flowing from the return water pipeline 2, so that the low-temperature return water flows into the water supply pipeline 7 through the second three-way valve 203 and the first three-way valve 702, and mixes with the high-temperature water supply in the water supply pipeline to balance the water supply temperature, so that the water supply temperature slowly rises and constant-temperature water is continuously supplied to the user terminal.

[0035] Embodiment 3

[0036] In the heating mode, the water temperature in the heat storage water tank 3 is higher than the water temperature in the user terminal.

[0037] The water temperature in the heat storage water tank 3 drops, and the water in the heat storage water tank 3 is transported to the user terminal along the liquid supply pipeline 7, so that the water temperature in the user terminal 1 drops rapidly, which brings a poor water experience to the user terminal.

[0038] The controller controls the second three-way valve 203 to increase the proportion of return water from the return water pipeline, and the second three-way valve 203 to increase the proportion of return water from the return water pipeline, the return water temperature is lower than the supply water temperature, the low-temperature return water is mixed with the high-temperature supply water through the second three-way valve 203 and the first three-way valve 702 into the supply water pipeline, and the supply water temperature slowly rises to maintain the cooling experience of the user terminal.

[0039] Embodiment 4

[0040] In the cooling mode, the water temperature in the heat storage water tank 3 is lower than the water temperature at the user terminal; the water temperature in the heat storage water tank rises, and the water in the heat storage water tank 3 is transported to the user terminal along the liquid supply pipe, so that the water temperature at the user terminal 1 rises rapidly, and the cooling experience of the user terminal is not good;

[0041] The controller controls the second three-way valve 203 to increase the proportion of return water from the return water pipeline, and the second three-way valve 203 to increase the proportion of return water from the return water pipeline, the return water temperature is lower than the supply water temperature, the low-temperature return water is mixed with the high-temperature supply water through the second three-way valve 203 and the first three-way valve 702 into the supply water pipeline, and the supply water temperature slowly rises to maintain the cooling experience of the user terminal.

[0042] Embodiment 5

[0043] In the cooling mode, the water temperature in the heat storage water tank is lower than the water temperature at the user terminal;

[0044] The water temperature in the heat storage water tank 3 decreases, and the water in the heat storage water tank 3 is transported to the user terminal 1 along the liquid supply pipe, so that the water temperature at the user terminal 1 decreases rapidly, and the user terminal 1 has a poor water experience;

[0045] The controller controls the second three-way valve 203 to increase the proportion of return water from the return water pipeline, and the second three-way valve 203 to increase the proportion of return water from the return water pipeline, the return water temperature is lower than the supply water temperature, the low-temperature return water is mixed with the high-temperature supply water through the second three-way valve 203 and the first three-way valve 702 into the supply water pipeline, and the supply water temperature slowly rises to maintain the cooling experience of the user terminal.

[0046] In the description of the present application, the terms "connection", "installation", "fixation", "arrangement" and the like are broadly understood, for example, "connection" is fixed connection or indirectly through intermediate components on the basis of not affecting the relationship between components and technical effects, is also integrated connection or partial connection, as the case for the person skilled in the art, the specific meaning of the above terms in the utility model or utility model can be understood according to the specific circumstances. The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art in the technical field disclosed by the present application within the scope of the technical range, according to the technical scheme and the utility model concept of the present application, equivalent replacement or change, should be covered within the protection scope of the present application.

Claims

1. A constant temperature water supply system characterised in that: The system comprises a heat pump unit (5), a heat storage water tank (3), a user terminal (1) and a controller, a heat pump circuit is arranged between the heat pump unit and the heat storage water tank, a water supply circuit is arranged between the heat storage water tank and the user terminal, the water supply circuit comprises a water supply pipeline (7) and a return water pipeline (2), a bypass pipeline (8) is arranged between the water supply pipeline and the return water pipeline, a first three-way valve (702) is arranged between one end of the bypass pipeline and the water supply pipeline, a second three-way valve (203) is arranged between the other end of the bypass pipeline and the return water pipeline, a water supply valve (701) is arranged between a water supply port of the heat storage water tank and the first three-way valve, a water supply thermometer (703) is arranged on the water supply pipeline between the first three-way valve and the user terminal, a return water valve (204) is arranged between a return water port of the heat storage water tank and the second three-way valve, a return water thermometer (201) and a return water check valve (202) are arranged in sequence along a return water direction between the second three-way valve and the user terminal, and the controller is communicatively connected with the first three-way valve (702) and the second three-way valve (203).

2. A constant temperature water supply system as claimed in claim 1, wherein: The system comprises a heating mode and a cooling mode; In the heating mode, the water temperature in the heat storage water tank is higher than the water temperature in the user terminal; When the water temperature in the heat storage water tank (3) rises, the controller controls the second three-way valve (203) to increase the proportion of return water flowing into the water supply pipeline and to increase the proportion of return water flowing from the return water pipeline, so as to balance the water supply temperature and slowly increase the water supply temperature; When the water temperature in the heat storage water tank (3) falls, the controller controls the second three-way valve (203) to decrease the proportion of return water flowing into the water supply pipeline and to decrease the proportion of return water flowing from the return water pipeline, so as to balance the water supply temperature and slowly decrease the water supply temperature.

3. A constant temperature water supply system as claimed in claim 2, wherein: In the cooling mode, the water temperature in the heat storage water tank is lower than the water temperature in the user terminal; When the water temperature in the heat storage water tank (3) rises, the controller controls the second three-way valve (203) to increase the proportion of return water flowing into the water supply pipeline and to increase the proportion of return water flowing from the return water pipeline, so as to balance the water supply temperature and slowly increase the water supply temperature; When the water temperature in the heat storage water tank (3) falls, the controller controls the second three-way valve (203) to decrease the proportion of return water flowing into the water supply pipeline and to decrease the proportion of return water flowing from the return water pipeline, so as to balance the water supply temperature and slowly decrease the water supply temperature.

4. A constant temperature water supply system as claimed in claim 3, wherein: The heat storage water tank (3) is provided with a water tank temperature sensor (301) and an electric heater (302) extending into the heat storage water tank, and the water tank temperature sensor and the electric heater are communicatively connected with the controller.

5. A constant temperature water supply system as claimed in claim 4, wherein: The heat pump circuit comprises a water outlet pipeline (6) and a water inlet pipeline (4), the water outlet pipeline is connected with a water inlet port of the heat storage water tank, and the water outlet pipeline is provided with a water outlet temperature sensor (601), a water flow switch (602) and a water outlet manual valve (603) in sequence along a water outlet direction; the water inlet pipeline (4) is connected with a water outlet port of the heat storage water tank, and the water inlet pipeline is provided with a water inlet manual valve (401), a shielded water pump (402) and a water inlet temperature sensor (403) in sequence along a water inlet direction.

6. A constant temperature water supply system as claimed in claim 5, wherein: The controller is respectively connected with the water supply valve (701), the water supply temperature gauge (703), the backwater valve (204), the backwater temperature gauge (201), the outlet water temperature sensor (601), the water flow switch (602), the shielding water pump (402) and the inlet water temperature sensor (403) to transmit temperature and water flow signals to the controller, and the controller controls the opening and closing of the shielding water pump (402) in real time, and controls the opening degree of the first three-way valve (702) and the second three-way valve (203) respectively.

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