Double-heat-source hot water system for residence

Abstract

The utility model discloses a double-heat-source hot water system for residence, which is connected with a solar water heater and a gas water heater through a pipeline, and further comprises a double-heat-source intelligent management box body which is internally provided with a hot water pipe, a cold water pipe, an electric three-way valve, a hot water circulating pump, an electronic controller and a power box, the water heater is connected with the hot water pipe and the cold water pipe through a plurality of electric three-way valves, a water outlet connector of the solar water heater is provided with a first temperature sensor, and a hot water return connector is provided with a second temperature sensor. The electronic controller is in telecommunication connection with all the electric three-way valves, the temperature sensor and the hot water circulating pump; the power box is connected with a power plug through a wire. The utility model provides a system for quick connection and intelligent operation of any two different heat source water heaters such as residential solar water heaters, air source heat pumps and gas water heaters, and the system is convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of residential domestic hot water systems, in particular to a dual-heat source hot water system for a residence. Background Art

[0002] With the country's continued advancement in renewable energy utilization and building energy conservation, renewable energy water heating systems, such as solar energy and air-source heat pumps, are increasingly being used in residential buildings as green, environmentally friendly, and energy-efficient hot water supply technologies. However, these clean energy water heating systems are significantly affected by the environment. For example, in poor weather, the heat collection efficiency of solar water heating systems decreases, while in extremely low temperatures, the heating efficiency of air-source heat pump water heating systems decreases, and may even malfunction. Therefore, it is necessary to install additional heat sources, such as gas water heaters, as auxiliary heat sources, or to provide backup for solar and air-source water heating systems.

[0003] At present, the connection methods between solar energy and air source clean energy water heaters, as well as between solar energy, air source clean energy water heaters and gas water heaters are very complicated and highly professional. The control methods are cumbersome and inconvenient to operate. The pipes are crisscrossed, and it is difficult to repair and replace equipment. This is not conducive to the normal use of residents in the future, and also brings inconvenience to the clean energy transformation and updating of old residential hot water systems.

[0004] In view of this, there is an urgent need to provide a method for quickly connecting and intelligently operating any two different heat source water heaters such as residential solar energy, air source heat pumps, gas, etc., as well as a safe, reliable and convenient installation system to match them. Utility Model Content

[0005] The problem to be solved by the present invention is that the connection method of the dual-heat source hot water system in the current residence is very complicated and highly professional, the control method is cumbersome and inconvenient to operate, the pipes are crisscrossed, the installation and maintenance are very difficult, and it is not conducive to the subsequent transformation and updating.

[0006] In order to solve the above technical problems, the present application provides a dual-heat-source hot water system for residence, which is connected to a solar water heater and a gas water heater through a pipe. The dual-heat-source domestic hot water system includes: a dual-heat-source intelligent management box, a hot water pipe, a cold water pipe, an electronic controller and a power box are arranged in the box, one end of the hot water pipe is a water outlet interface of the gas water heater, and the other end is a hot water outlet interface, a first electric three-way valve is connected to the hot water pipe, the first electric three-way valve, the second electric three-way valve and the third electric three-way valve are connected in series in sequence, one end of the first electric three-way valve is provided with a water inlet interface of the gas water heater, and one end of the second electric three-way valve is provided with a solar water heater. The water outlet interface of the water heater, one end of the third electric three-way valve is set as the water inlet interface of the solar water heater, and the other end is connected to one end of the cold water pipe, and the other end of the cold water pipe is the cold water inlet interface; the cold water pipe is connected to a ball valve, and the ball valve is connected to the hot water circulation pump outlet pipe through a check valve, and the hot water circulation pump is connected to the hot water return interface; the water outlet interface of the solar water heater is provided with a first temperature sensor, and the hot water return interface is provided with a second temperature sensor; the electronic controller is connected to all electric three-way valves, temperature sensors and hot water circulation pumps by telecommunications; the power box is connected to the power plug through wires, and the power box provides power for the dual heat source intelligent management box.

[0007] According to an embodiment of the present application, a first check valve is provided on the cold water pipe, and the first check valve is located downstream of the cold water inlet interface.

[0008] According to an embodiment of the present application, a second check valve is provided on the hot water pipe downstream of the water outlet interface of the gas water heater.

[0009] According to an embodiment of the present application, the dual heat source intelligent management box is a cube with a width of 0.50m, a height of 0.34m and a thickness of 0.20m.

[0010] According to an embodiment of the present application, the front of the dual-heat source intelligent management box is connected to a panel via a hinge, and the panel is provided with a display screen and control buttons for users to select hot water temperature and hot water supply mode.

[0011] According to an embodiment of the present application, the dual-heat source intelligent management box is installed in the wall.

[0012] According to an embodiment of the present application, the cold water inlet interface is connected to the domestic cold water system.

[0013] According to an embodiment of the present application, angle valves are provided on the connecting pipes between the dual-heat source intelligent management box and the external system.

[0014] According to the embodiment of the present application, the hot water circulation pump is arranged downstream of the hot water return interface, and the flow rate of the hot water circulation pump is 0.2m 3 / h.

[0015] According to the embodiment of the present application, the cold water pipe, the hot water pipe and the interfaces of the two are all DN20 models. The beneficial effects of the technical solution of the utility model over the prior art are:

[0016] 1. The utility model utilizes solar energy and gas water heaters as dual heat sources, connects the dual heat source intelligent management box through pipelines, and the pipelines, valves and accessories in the dual heat source intelligent management box are linked to the electronic controller to control the valve switch to change the water flow direction, so as to fully improve the thermal efficiency of the water heater. Even when the ambient temperature is low and the sunlight intensity is weak, the normal operation of the dual heat source hot water system is maintained to ensure the continuous production of hot water.

[0017] 2. The dual-heat source intelligent management box of the present invention is factory-produced, and all accessories and pipelines are assembled in the factory; the dual-heat source intelligent management center can be directly mounted on the wall or embedded in the wall; at the construction site, it is only necessary to reserve the wall or wall hole for installation and the power socket, and then install the dual-heat source intelligent management center in place, and then connect the water heater and the hot water circulation pipe to the dual-heat source intelligent management center through an angle valve to complete the installation; installation and debugging are convenient, and the pipeline layout is simple and beautiful; daily use and maintenance are convenient, and various equipment in the system are easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the composition structure of a dual-heat source hot water system for a residence according to an example of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the dual-heat source intelligent management box in the example of the utility model;

[0020] Figure 3 for Figure 2 Left view of;

[0021] Figure 4 This is a schematic diagram of a heat source preparation mode of a dual-heat source domestic hot water system in an example of the present utility model;

[0022] Figure 5 This is a schematic diagram of another heat source preparation mode of the dual-heat source domestic hot water system in the example of the present utility model;

[0023] Figure 6 This is a schematic diagram of another heat source preparation mode for the dual heat source domestic hot water system in the example of the present utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 10. Dual heat source intelligent management box, 11. Hot water pipe, 12. Cold water pipe, 13. Hot water circulation pump, 14. Electronic controller, 15. Power box, 16. First electric three-way valve, 17. Second electric three-way valve, 18. Third electric three-way valve, 19. Hot water return port, 20. Solar water heater, 30. Gas water heater, 40. Domestic hot water system, 50. Domestic cold water system, 113. Third check valve, 121. Second check valve, 122. Cold water inlet port, 131. First check valve, 132. Ball valve, 161. Gas water heater inlet port, 171. Solar water heater outlet port, 172. First temperature sensor, 181. Solar water heater inlet port, 191. Second temperature sensor.

[0026] The arrows represent the direction of water flow. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] See Figures 1 to 5 As shown, the example of the present invention is a dual-heat source hot water system for residence, including a dual-heat source intelligent management box 10 and a solar water heater 20 and a gas water heater 30 connected thereto. Compared with the problems in the prior art of the dual-heat source domestic hot water system, which has a very complex connection method, a cumbersome control method, inconvenient operation, crisscrossing pipes, and difficulty in repairing and replacing equipment, the present application installs the dual-heat source intelligent management box 10 on the wall, and then connects the solar water heater 20, the gas water heater 30, and the domestic hot water system to the interface of the dual-heat source intelligent management box 10 through pipes to complete the installation. The installation is convenient and simple, and daily use and maintenance are convenient, and various equipment in the system are easy to replace.

[0029] In this embodiment, a dual heat source intelligent management box 10 is provided with a hot water pipe 11, a cold water pipe 12, an electronic controller 14 and a power supply box 15.

[0030] Specifically, one end of the hot water pipe 11 is the water outlet interface of the gas water heater, and the other end is the hot water outlet interface. The hot water pipe 11 is connected to a first electric three-way valve 16, and the first electric three-way valve 16, the second electric three-way valve 17, and the third electric three-way valve 18 are connected in series in sequence. One end of the first electric three-way valve 16 is provided with a water inlet interface 161 of the gas water heater, one end of the second electric three-way valve 17 is provided with a water outlet interface 171 of the solar water heater, one end of the third electric three-way valve 18 is provided with a water inlet interface 181 of the solar water heater, and the other end is connected to one end of the cold water pipe 12, and the other end of the cold water pipe 12 is a cold water inlet interface 122; the cold water pipe 12 is connected to a ball valve 132, and the ball valve 132 is connected to the first electric three-way valve 132. A check valve 131 is connected to the outlet pipe of the hot water circulation pump 13, and the hot water circulation pump 13 is connected to the hot water return interface 19; the outlet interface 171 of the solar water heater is provided with a first temperature sensor 172, which transmits the temperature signal to the electronic controller 14 for controlling the switches of the three electric three-way valves and controlling the direction of water flow; the hot water return interface 19 is provided with a second temperature sensor 191, which transmits the temperature signal to the electronic controller 14 for controlling the switches of the hot water circulation pump 13; the electronic controller 14 is connected to all the electric three-way valves, temperature sensors and hot water circulation pump 13 by telecommunications; the power box 15 is connected to the power plug through wires, and the power box 15 provides power for the dual heat source intelligent management box 10.

[0031] Furthermore, the dual heat source intelligent management box 10 is a cube with a width of 0.50m, a height of 0.34m and a thickness of 0.20m. The front of the dual heat source intelligent management box 10 is connected to a panel by a hinge. The panel is provided with a display screen and control buttons for users to select hot water temperature and hot water supply mode.

[0032] Furthermore, a second check valve 121 is provided on the cold water pipe 12, and a first check valve 131 is located downstream of the cold water inlet interface to prevent hot water from flowing back into the cold water pipe 12. A third check valve 113 is provided on the hot water pipe 11 downstream of the water outlet interface of the gas water heater to prevent hot water from flowing back into the water heater.

[0033] Furthermore, the cold water inlet interface is connected to the domestic cold water system 50 to supply water to the hot water system. Angle valves are installed on the pipes connecting the dual heat source intelligent management box 10 to the external system. The water heater and hot water circulation pipes are connected to the dual heat source intelligent management box 10 through the angle valves. Specifically, the solar water heater 20 is connected to the dual heat source intelligent management box 10 via the inlet and outlet pipes; the gas water heater 30 is connected to the dual heat source intelligent management box 10 via the inlet and outlet pipes; and the domestic hot water system 40 is connected to the dual heat source intelligent management box 10 via the hot water supply and return pipes.

[0034] Furthermore, all accessories and pipelines in the dual-heat source intelligent management box 10 are assembled in the factory. The dual-heat source intelligent management box 10 can be directly installed on the wall or embedded in the wall. The installation and debugging are convenient, and the pipeline layout is simple and beautiful.

[0035] Furthermore, the hot water circulation pump 13 is set at the downstream of the hot water return interface 19, and the flow rate of the hot water circulation pump 13 is 0.2m 3 The cold water pipe 12, the hot water pipe 11, the hot water return interface 19 and the interfaces of the two are all DN20 models.

[0036] Furthermore, the dual-heat-source intelligent management system has an independent compartment for housing an electronic controller 14, which controls the on / off of the electric valve and circulation pump. The dual-heat-source intelligent management system also has an independent compartment for housing a power supply box 15, which is equipped with wires and a national standard three-pin plug. This box provides power to the dual-heat-source intelligent management center.

[0037] In this embodiment, a dual-heat-source hot water system for a residence has the following three operating modes:

[0038] like Figure 4 The figure shows a hot water preparation mode 1 of a dual-heat source hot water system for residential use: when the outlet water temperature of the solar water heater 20 meets the use requirements, the temperature signal of the first temperature sensor 172 is transmitted to the electronic controller 14 to control the switch of the electric three-way valves 16, 17, and 18 (the valves are closed in the black direction), control the water flow direction, and directly supply hot water from the solar water heater 20. The gas water heater 30 does not work. The specific water flow direction is shown by the arrow.

[0039] like Figure 5 As shown, a hot water preparation mode 2 of a dual-heat source hot water system for residences: when the outlet water temperature of the solar water heater 20 cannot meet the use requirements, the temperature signal of the first temperature sensor 172 is transmitted to the electronic controller 14 to control the switch of the electric three-way valves 16, 17, and 18 (the valve is closed in the black direction) to control the flow direction of water. After the solar water heater 20 preliminarily heats the cold water, the gas water heater 30 continues to heat the hot water to the set water supply temperature for user use. The specific water flow direction is shown by the arrow.

[0040] like Figure 6 As shown, a dual-heat source hot water system preparation mode 3 for residential use: When the solar water heater cannot work normally in the studio, the temperature signal of the first temperature sensor 172 is transmitted to the electronic controller 14 to control the switch of the electric three-way valves 16, 17, and 18 (the valve is closed in the black direction), control the water flow direction, and directly supply hot water from the gas water heater 30. The solar water heater 20 does not work. The specific water flow direction is shown by the arrow.

[0041] In this embodiment, the installation process of a dual-heat source hot water system for a residence is as follows: the dual-heat source intelligent management box 10 is installed on the wall of a residential building; the solar water heater 20 is connected to the dual-heat source intelligent management box 10 through an inlet pipe and an outlet pipe; the gas water heater 30 is connected to the dual-heat source intelligent management box 10 through an inlet pipe and an outlet pipe; the residential hot water system is connected to the dual-heat source intelligent management box 10 through a hot water supply pipe and a return pipe; the cold water inlet pipe is connected to the dual-heat source intelligent management box 10 to supply water to the hot water system; the power plug of the dual-heat source intelligent management center is connected to the power socket reserved on the wall to provide power for the dual-heat source intelligent management center.

[0042] In summary, the technical solution of this application has the following beneficial effects:

[0043] 1. The utility model utilizes solar energy and gas water heaters as dual heat sources, connects the dual heat source intelligent management box through pipelines, and the pipelines, valves and accessories in the dual heat source intelligent management box are linked with an electronic controller to control the valve switch to change the flow direction of water, so as to fully improve the thermal efficiency of the water heater. Even when the ambient temperature is low and the sunlight intensity is weak, the normal operation of the dual heat source hot water system is maintained, and hot water is continuously produced.

[0044] 2. The dual-heat source intelligent management box of the present invention is factory-produced, and all accessories and pipelines are assembled in the factory; the dual-heat source intelligent management center can be directly mounted on the wall or embedded in the wall; at the construction site, it is only necessary to reserve the wall or wall hole for installation and the power socket, and then install the dual-heat source intelligent management center in place, and then connect the water heater and the hot water circulation pipe to the dual-heat source intelligent management center through an angle valve to complete the installation; installation and debugging are convenient, and the pipeline layout is simple and beautiful; daily use and maintenance are convenient, and various equipment in the system are easy to replace.

[0045] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-heat source hot water system for a residence, connecting a solar water heater and a gas water heater through a pipeline, characterized in that: The dual heat source domestic hot water system includes: The dual heat source intelligent management box is equipped with hot water pipes, cold water pipes, electric three-way valves, hot water circulation pumps, electronic controllers and power boxes. One end of the hot water pipe is the water outlet interface of the gas water heater, and the other end is the hot water outlet interface. The hot water pipe is connected to a first electric three-way valve, and the first electric three-way valve, the second electric three-way valve, and the third electric three-way valve are connected in series in sequence. One end of the first electric three-way valve is provided with a water inlet interface of the gas water heater, and one end of the second electric three-way valve is provided with a water outlet interface of the solar water heater. One end of the third electric three-way valve is provided with a water inlet interface of the solar water heater, and the other end is connected to one end of the cold water pipe, and the other end of the cold water pipe is the cold water inlet interface; the cold water pipe is connected to a ball valve, and the ball valve is connected to the outlet pipe of the hot water circulation pump through a first check valve, and the hot water circulation pump is connected to the hot water return interface; The water outlet interface of the solar water heater is provided with a first temperature sensor, and the hot water return interface is provided with a second temperature sensor; The electronic controller is connected to all electric three-way valves, temperature sensors and hot water circulation pumps by telecommunications; The power box is connected to a power plug via an electric wire, and the power box provides power to the dual heat source intelligent management box; Wherein, a second check valve is provided on the cold water pipe, and the second check valve is located downstream of the cold water inlet interface; a third check valve is provided on the hot water pipe downstream of the water outlet interface of the gas water heater.

2. A dual heat source hot water system for a residence according to claim 1, characterized in that: The dual-heat source intelligent management box is a cube with a width of 0.50m, a height of 0.34m and a thickness of 0.20m.

3. A dual heat source hot water system for a residence according to claim 1, characterized in that: The front of the dual-heat source intelligent management box is connected to a panel via a hinge. The panel is provided with a display screen and control buttons for users to select hot water temperature and hot water supply mode.

4. A dual heat source hot water system for a residence according to claim 1, characterized in that: The dual-heat source intelligent management box is installed in the wall.

5. A dual heat source hot water system for a residence according to claim 1, characterized in that: The cold water inlet interface is connected to the domestic cold water system.

6. A dual heat source hot water system for a residence according to claim 1, characterized in that: Angle valves are provided on the connecting pipes between the dual heat source intelligent management box and the external system.

7. A dual heat source hot water system for a residence according to claim 1, characterized in that: The hot water circulation pump is arranged downstream of the hot water return interface, and the flow rate of the hot water circulation pump is 0.2m 3 / h.

8. A dual heat source hot water system for a residence according to claim 1, characterized in that: The cold water pipe, hot water pipe and their interfaces are all DN20 models.

Images