CN201715758U - Immediate-heating anti-freezing solar water heater - Google Patents

Abstract

The utility model discloses an instant-on and instant-heat antifreeze solar water heater. It includes a water tank, and the water tank is connected with a hot water outlet pipe and an overflow pipe. The opening of the hot water outlet pipe is located at the lower part of the water tank, and the opening of the overflow pipe is located at the upper part of the water tank. It also includes a water pump and a control device for controlling the water pump. The water pump The water inlet and the water outlet are respectively communicated with the lower end of the hot water outlet pipe and the lower end of the overflow pipe through water pipes. The beneficial effects of the utility model are: when using the solar water heater, the water temperature and water level in the water tank can be checked, and the circulation of the hot water in the water tank can be realized through the water pump, so as to realize the antifreeze function in winter, and can be turned on and heated immediately. It can also be controlled by timing or temperature according to the situation, with simple structure and convenient use.

Description

Instant-on and antifreeze solar water heater

technical field

The utility model belongs to the technical field of solar energy equipment, in particular to an instant-on, instant-heating antifreeze solar water heater.

Background technique

At present, the installation of present known solar water heater all is to place the solar water heater in a high place, or the roof or the roof. Use a water pipe to connect the main body of the water heater with the running water pipe in the user's home and install a valve as the water supply switch of the solar water heater. One or more three-way water pipes or faucets are connected to the water pipe between the switch and the main body of the water heater, which are respectively used for bathing, face washing, dish washing or other purposes. Also have a water pipe one end to be connected at the overflow mouth place of water heater water tank and the other end then leads to the user's home as the overflow pipe. When the water tank of the water heater is filled with water, the excess water will flow back to the user's home through the overflow pipe. On the one hand, it can prevent the water tank from being damaged by the excessive pressure of tap water, and on the other hand, it can also remind the user to turn off the water supply switch in time. This kind of water pipe connection method is the most common connection method when installing solar water heaters. Its advantages are simple operation, reliable operation, and easy maintenance. The shortcoming is that after opening the hot water nozzle, the cold water between the water heater and the water nozzle needs to be let off before hot water can flow out. The longer the water pipe is, the more cold water needs to be let off at this time, causing serious waste and inconvenience. And in the severe winter, the pipes are often frozen.

Contents of the invention

In order to solve the above technical deficiencies, the utility model provides an instant heating antifreeze solar water heater which can conveniently measure the water temperature and water level in the water heater tank, prevent freezing in winter, and realize hot water flowing out instantly when the hot water nozzle is opened. .

The utility model is achieved through the following measures:

An instant-on and antifreeze solar water heater of the utility model comprises a water tank, the water tank is connected with a hot water outlet pipe and an overflow pipe, the opening of the hot water outlet pipe is located at the lower part of the water tank, and the opening of the overflow pipe is located at the upper part of the water tank It also includes a water pump and a control device for controlling the water pump, the water inlet and the water outlet of the water pump communicate with the lower end of the hot water outlet pipe and the lower end of the overflow pipe respectively through water pipes.

In the instant-on and antifreeze solar water heater of the utility model, the control device includes a temperature sensor and a temperature control device arranged at the lower end of the hot water outlet pipe or the overflow pipe, and the temperature control device is controlled by the temperature signal received from the temperature sensor. Turning on and off of the water pump.

In the instant-on, instant-heat antifreeze solar water heater of the utility model, the control device includes a timing switch device, and the timing switch device is used to control the opening and closing of the water pump at regular intervals.

In the instant-on, instant-heat antifreeze solar water heater of the utility model, switch valves are all arranged at the water outlets of the hot water outlet pipe, the overflow pipe and the water pump.

In the instant-on and antifreeze solar water heater of the utility model, a thermometer is arranged at the lower end of the hot water outlet pipe or the overflow pipe.

In the instant-on and antifreeze solar water heater of the utility model, the water outlet of the water pump is connected with a heat exchanger.

In the instant-on and anti-freeze solar water heater of the utility model, the lower end of the hot water outlet pipe is provided with a pressure sensing display device for converting the water pressure signal into a digital signal of the water level of the water tank and displaying it.

In the instant-on and anti-freezing solar water heater of the utility model, the lower end of the hot water outlet pipe is provided with a pressure sensing display device, a flow meter and a solenoid valve connected to the control device, and the control device receives the pressure sensing signal and the flow signal and Controls the opening and closing of the solenoid valve.

The beneficial effects of the utility model are: when using the solar water heater, the water temperature and water level in the water tank can be checked, and the circulation of the hot water in the water tank can be realized through the water pump, so as to realize the antifreeze function in winter, and can be turned on and heated immediately. It can also be controlled by timing or temperature according to the situation, with simple structure and convenient use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1 water tank, 2 hot water outlet pipe, 3 overflow pipe, 4 water pump, 5 control device, 6 temperature sensor, 7 heat exchanger, 8 thermometer, 9 exhaust port, 10 on-off valve I, 11 on-off valve II , 12 switch valve III, 13 switch valve IV, 14 switch valve V, 15 pressure sensor display device, 16 water outlet, 17 flow meter, 18 solenoid valve.

Detailed ways

Embodiment 1: As shown in Figure 1, the technical solution adopted by the utility model to solve its technical problems is: a kind of instant heating and antifreeze solar water heater of the utility model, comprising a water tank 1, and an exhaust port 9 is arranged on the top of the water tank 1 The water tank 1 is connected with a hot water outlet pipe 2 and an overflow pipe 3. The opening of the hot water outlet pipe 2 is located at the lower part of the water tank 1, and the opening of the overflow pipe 3 is located at the upper part of the water tank 1. It also includes a water pump 4 and a control device 5 for controlling the water pump 4. The water pump The water inlet and the water outlet of 4 communicate with the lower end of the hot water outlet pipe 2 and the lower end of the overflow pipe 3 through water pipes respectively. The hot water outlet pipe 2 is provided with a switching valve I10 as a water supply switch. The overflow pipe 3 is provided with a switching valve V14, and the water outlet of the water pump 4 is provided with a switching valve IV13. A thermometer 8 is arranged at the lower end of the hot water outlet pipe 2 or the overflow pipe 3 . The control device 5 adopts simple switch control, and controls the opening and closing of the water pump 4 through the on-off of the switch. When the water tank of the solar water heater needs to be filled with water, first close the on-off valve 13, and open the on-off valve V14 and the on-off valve I10 at the same time. At this time, the tap water will reach the water tank 1 through the on-off valve I10 and the hot water outlet pipe 2. At this time, due to the on-off valve IV13 The opening of the closing and switching valve V14 makes the overflow pipe 3 really play the role of the overflow pipe. When the lower end of the overflow pipe 3 has water flowing out, it means that the water tank is full, and the on-off valve I10 can be closed immediately, then the on-off valve V14 is closed, and the valve IV13 is opened. When someone wants to use hot water, he can press the shortcut key on the control device 5, and the water pump 4 starts to start, and the cold water in the water pipe will flow back to the water tank of the solar water heater through the overflow pipe 3 under the action of the water pump 4, while the water tank 1 The hot water inside will be drawn into the hot water outlet pipe 2 by the water pump 4, to ensure that the hot water outlet pipe 2 is immediately heated. The hot water outlet pipe 2 is provided with 16 water outlets, and the water outlet 16 can provide domestic water.

Embodiment 2: the control device 5 adopts the temperature sensor 6 and the temperature control device arranged at the lower end of the hot water outlet pipe 2 or the overflow pipe 3, the temperature sensor 6 detects the water temperature in the water pipe, and transmits the temperature signal to the temperature control device, and the temperature control device The on and off of the water pump 4 is controlled by the received temperature signal from the temperature sensor 6 . Other structures and working principles are consistent with those in Embodiment 1.

Embodiment 3: The control device adopts a timing switch device, and the timing switch device is set regularly so that it can automatically control the opening and closing of the water pump 4 within a certain time interval. When the outdoor temperature is below zero, the water pump 4 can be set to work automatically at intervals for a period of time to ensure that the water pipes do not freeze, thereby achieving the purpose of antifreezing. Other structures and working principles are consistent with Embodiment 1.

Embodiment 4: In cloudy and rainy days, if the solar water heater cannot heat the water, the water outlet of the water pump 4 can be connected to the heat exchanger 7, and the water inlet and water outlet of the heat exchanger 7 are connected to the water outlet of the water pump 4 At the water inlet of the heat exchanger 7, an on-off valve II11 is provided, and an on-off valve III12 is arranged between the water inlet and the outlet of the heat exchanger 7. Close switch valve I12 during use, open switch valve II11, so just can send the hot water in the heat exchanger 7 in the water tank 1 by water pump 4, use again. Not only can the solar water heater be heated and antifreeze immediately, but it can also ensure that there is still hot water when there is no sunshine for many consecutive days. Other structures and working principles are consistent with those in Embodiment 1.

Embodiment 5: A pressure sensing display device is provided at the lower end of the hot water outlet pipe, which is used to convert the water pressure signal into a digital signal of the water level of the water tank and display it. A flow meter 17 is installed between the water tank 1 and the water outlet 16, and an electromagnetic valve 18 is installed in parallel with the switch valve I10, and the flow meter 17 and the electromagnetic valve 18 are electrically connected to the controller 5. This system also has automatic water supply, water The function of full self-stop, the specific implementation: the on-off valve I10 can be closed during automatic water supply, and the solenoid valve 18 is opened by manipulating the automatic water supply button command on the controller 5. At this time, the tap water will pass through the solenoid valve 18 and the hot water pipe 2 Arrive at water tank 1, when water tank 1 is full of water, pressure sensor display device 15 gives controller 5 a signal command electromagnetic valve 18 to close, and this process promptly is full of water and stops automatically. The above-mentioned flow meter can play an insurance role. If the maximum capacity of the water tank of a solar water heater is 100 liters, the single water flow of the flow meter can be set by the controller 5 to be less than 100 liters. A signal will be given to the controller 5 when the meter has measured a single water flow to 100 liters, and the electromagnetic valve of the automatic water supply is ordered to close. This device can solve the problem of infinite water supply, that is, running water, which often occurs in solar water heaters at present. Other structures and working principles are consistent with those in Embodiment 1.

Claims (7)

1. A kind of heat antifreeze solar water heater that is instant on, comprises water tank (1), and described water tank (1) is connected with hot water outlet pipe (2) and overflow pipe (3), and described hot water outlet pipe (2) The opening is located at the bottom of the water tank (1), the opening of the overflow pipe (3) is located at the top of the water tank (1), and is characterized in that it also includes a water pump (4) and a control device (5) for controlling the water pump (4), the water pump ( 4) The water inlet and the water outlet are respectively communicated with the lower end of the hot water outlet pipe (2) and the lower end of the overflow pipe (3) through water pipes. 2. The instant-on antifreeze solar water heater according to claim 1, characterized in that: the control device (5) includes a temperature sensor (6) arranged at the lower end of the hot water outlet pipe (2) or the overflow pipe (3) ) and a temperature control device, the temperature control device controls the opening and closing of the water pump (4) through the temperature signal received from the temperature sensor (6). 3. The instant-on and anti-freezing solar water heater according to claim 1, characterized in that: the control device (5) includes a timing switch device, and the timing switch device is used to control the opening and closing of the water pump (4) at regular intervals. broken. 4. The instant-on and anti-freeze solar water heater according to claim 1, characterized in that: the hot water outlet pipe (2), the overflow pipe (3) and the water outlet of the water pump (4) are all provided with switch valves . 5. The instant-on antifreeze solar water heater according to claim 1, 2 or 3, characterized in that: a thermometer (8) is provided at the lower end of the hot water outlet pipe (2) or overflow pipe (3). 6. The instant-on and antifreeze solar water heater according to claim 1, characterized in that: the water outlet of the water pump (4) is connected with a heat exchanger (7). 7. The instant-on and anti-freezing solar water heater according to claim 1, characterized in that: the lower end of the hot water outlet pipe (2) is provided with a pressure sensing display device (15) and a flow meter connected to the control device. (17) and the solenoid valve (18), the control device (5) receives the pressure sensing signal and the flow signal and controls the opening and closing of the solenoid valve (18).

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