CN202254399U - Control device for hot water supply by matching solar water heater with electric or gas water heater - Google Patents

Abstract

A solar water heater and an electric water heater or a gas water heater cooperate to supply hot water, comprising a water temperature sensor, an electric three-way valve, a temperature controller, a connecting pipe and a shell, wherein the first end of the electric three-way valve is connected to the cold water inlet of the gas water heater or the electric water heater through a connecting pipe, the second end is divided into two branches through a connecting pipe, one branch is connected to the hot water outlet of the gas water heater or the electric water heater, and the other branch is connected to the hot water point, and the third end is connected to the outlet of the solar water heater through a connecting pipe, the signal input end of the electric control part is connected to the temperature controller, the water temperature sensor is installed in the connecting pipe between the electric three-way valve and the outlet of the solar water heater, and the output end of the water temperature sensor is connected to an input end of the temperature controller. The utility model has the advantages that when the two heating devices are switched, they can be automatically switched without manually closing the valve, which not only meets the energy saving and use effect, but also has automatic control and is easy to use.

Description

Control device for hot water supply of solar water heater and electric or gas water heater

【Technical field】

The utility model relates to a control device, in particular to a control device for hot water supply in cooperation of a solar water heater and an electric water heater or a gas water heater.

【Background technique】

A water heater refers to a device that raises the temperature of cold water into hot water within a certain period of time through various physical principles. According to different principles, it can be divided into four types: electric water heaters, gas water heaters, solar water heaters, and air energy water heaters. Electric water heaters, gas water heaters, and solar water heaters are the most widely used. Since solar water heaters are water heaters assembled with vacuum heat collecting tubes, hot water can be produced when there is light, which is the most energy-saving. Therefore, in order to save energy and reduce costs, many families install solar water heaters. However, the solar water heater cannot be used in continuous cloudy days or when the sunlight is not strong in winter, so another gas water heater or electric water heater is installed for backup. When the solar water heater cannot be used, the gas water heater or electric water heater is turned on to supply hot water. When the solar water heater can be used, the gas water heater or the electric water heater is turned off to supply hot water, which saves energy without affecting the use.

However, when these two energy heating devices are used in conjunction with complementary hot water supply, when one of the energy heating devices is used, the other energy heating device must be manually turned off, which is troublesome to operate, especially for two energy sources. It is very inconvenient if the switch installation positions are far apart.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a control device for coordinating the solar water heater and the electric or gas water heater for hot water supply, which can automatically switch between the solar water heater and the electric or gas water heater.

The utility model solves the above-mentioned technical problems through the following technical solutions: an automatic control device for coordinating hot water supply between a solar water heater and an electric water heater or a gas water heater, including a water temperature sensor, an electric control three-way valve, a temperature controller, a connecting pipe and a casing , the water temperature sensor, the electric control three-way valve, the temperature controller, and the connecting pipe are all installed in the shell, and the first end of the electric control three-way valve is connected to the cold water inlet of the gas water heater or the electric water heater through the connecting pipe. The second end of the electric control three-way valve is divided into two branches through the connecting pipe, one is connected to the hot water outlet of the gas water heater or electric water heater, the other is connected to the hot water water point, and the third end of the electric control three-way valve is Connect the water outlet of the solar water heater through the connecting pipe, the signal input end of the electric control part of the electric control three-way valve is connected to the temperature controller, the water temperature sensor is installed in the connection pipe between the electric control three-way valve and the water outlet of the solar water heater, the water temperature sensor The output is connected to one input of the temperature controller.

A hot water circulation pump is installed between the interface between the electric control three-way valve and the hot water point, and the power line and signal control line of the hot water circulation pump are respectively connected to the temperature controller.

The utility model has the advantages that: when the two kinds of heating devices are switched, they can switch automatically, and there is no need to manually close the valve. When the temperature of the water flowing out of the solar water heater does not reach the set value, the water flowing out of the solar water heater will automatically flow through the gas water heater or electric water heater for reheating to make it reach the set water temperature. Energy saving and use effect, and automatic control, easy to use, improve comfort.

【Description of drawings】

Fig. 1 is a schematic structural diagram of an automatic control device for hot water supply in cooperation with a solar water heater and an electric water heater or a gas water heater of the utility model.

Fig. 2 is the front diagram of the automatic control device for cooperating with the solar water heater and the electric water heater or the gas water heater of the utility model for hot water supply.

【Detailed ways】

The utility model will be further described below with reference to the accompanying drawings in conjunction with the embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model.

Please refer to Fig. 1 and Fig. 2, the utility model solar water heater and electric water heater or gas water heater cooperate with the automatic control device for hot water supply including water temperature sensor 1, electric control three-way valve 2, temperature controller 3, connecting pipe 4 and shell 5. The water temperature sensor 1 , the electric control three-way valve 2 , the temperature controller 3 and the connecting pipe 4 are all installed in the casing 5 . Connecting pipe 4 adopts copper pipe.

The A end of the electric control three-way valve 2 is connected to the cold water inlet of the gas water heater or the electric water heater through the connecting pipe 4, and the B end of the electric control three-way valve 2 is divided into two branches through the connecting pipe 4, one of which is connected to the gas water heater. The hot water outlet of the water heater or electric water heater, the other is connected to the hot water point for users to use hot water, the AB end of the electric control three-way valve 2 is connected to the water outlet of the solar water heater through the connecting pipe 4, and the electric control three-way valve 2 The signal input end of the electronic control part is connected to the temperature controller 3 . The water temperature sensor 1 is installed in the connecting pipe 4 between the electric control three-way valve 2 and the solar water heater outlet, and the output end of the water temperature sensor 1 is connected to an input end of the temperature controller 3 .

When using, first set the required water temperature on the temperature controller 3, when the user opens the faucet of the hot water point to use hot water, the water in the solar water heater flows to the AB of the electric control three-way valve 2 through the connecting pipe 4 At this time, the water temperature measured by the water temperature sensor 1 is transmitted to the temperature controller 3. If it is higher than the preset water temperature in the temperature controller 3, the temperature controller 3 controls the electronically controlled three-way valve 2 to automatically close the A terminal and open the B terminal. At this time, the water flow direction is: solar water heater → AB end of the electric control three-way valve 2 → B end of the electric control three-way valve 2 → the faucet of the hot water point flows out; when the measured water temperature is lower than that in the temperature controller 3 When the water temperature is set in advance, the temperature controller 3 controls the electronically controlled three-way valve 2 to automatically close the B terminal and open the A terminal, then the water flow direction is: solar water heater → AB terminal of the electronically controlled three-way valve 2 → electronically controlled three-way A end of valve 2 → cold water inlet of gas water heater or electric water heater → gas water heater or electric water heater → hot water outlet of gas water heater or electric water heater → hot water flows out from the faucet of the water point. The control device is very convenient to operate and use. It can automatically control whether the water in the solar water heater flows directly to the water point or flows through the gas water heater or electric water heater to be heated and then flows to the water point. There is no need to manually switch the valve.

For the gas water heater or electric water heater used in the above-mentioned operations, a fast heating type gas water heater or electric water heater is usually used.

If the installed solar water heater is pressurized, the water tank of the solar water heater can be used as a buffer hot water storage tank, and the hot water system in the family can be designed as a hot water circulation system. A hot water circulation pump (M) is installed between the valve 2 and the hot water point. The power line and signal control line of the hot water circulation pump are respectively connected to the temperature controller 3. The start and stop of the hot water circulation pump depend on temperature control. It depends on the time and temperature set by the controller 3. You can set a regular start-up cycle. When the temperature measured by the water temperature sensor 1 is 5 degrees lower than the set temperature, the hot water circulating pump will start and stop when it reaches the set temperature. This can ensure The water in the main pipe under each hot water point always maintains the required temperature, and there is hot water as soon as the tap is turned on, no need to wait, and the waste of water resources is also reduced.

In addition, in the automatic control device installed with the hot water circulation pump, a low-temperature antifreeze function is also set. When the water temperature measured by the water temperature sensor 1 is lower than 5°C, the temperature controller 3 is automatically turned on, and the electric control three-way valve 2 and the thermostat are automatically turned on. The water circulation pump starts to work, and the water starts to circulate among the solar water tank, the hot water circulation pipeline, the automatic control device and the electric or gas water heater. The electric or gas water heater heats the water in the system. When the water temperature measured by the water temperature sensor 1 reaches 15° C, stop working. For this antifreeze function to work, the electric or gas water heater must be connected to electricity and gas so that it can function to heat water.

Although the specific implementation manners of the present utility model have been described above, those skilled in the art should understand that the specific embodiments we describe are only illustrative, rather than used to limit the scope of the present utility model. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the utility model shall fall within the protection scope of the claims of the utility model.

Claims (2)

1. a solar water heater cooperates the self-con-tained unit of heat supply water with electric heater or gas heater; It is characterized in that: comprise cooling-water temperature sensor, automatically controlled triple valve, temperature controller, tube connector and shell; Said cooling-water temperature sensor, automatically controlled triple valve, temperature controller, tube connector are installed in the shell; First end of said automatically controlled triple valve connects the cold water inlet of gas heater or electric heater through tube connector; Second end of said automatically controlled triple valve is divided into two branches through tube connector, the hot water outlet of connection gas heater or electric heater, and another connects hot water and uses water spot; The 3rd end of automatically controlled triple valve connects the solar water heater delivery port through tube connector; The signal input part of the automatically controlled part of automatically controlled triple valve connects temperature controller, and cooling-water temperature sensor is installed in the tube connector between automatically controlled triple valve and the solar water heater delivery port, and the output of cooling-water temperature sensor is connected to an input of temperature controller.

2. solar water heater as claimed in claim 1 cooperates the self-con-tained unit of heat supply water with electric heater or gas heater; It is characterized in that: said automatically controlled triple valve and hot water are with installing a hot water circulating pump between the interface of water spot, the power line and the signal control line of hot water circulating pump are received on the temperature controller respectively.

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