CN201093097Y - Solar water heater pipeline anti-freezing valve - Google Patents

Abstract

The utility model discloses an antifreeze valve for pipelines of solar water heaters, which can prevent remaining water in the water pipelines from freezing and blocking the pipelines in cold seasons so that the solar water heaters cannot be used. The valve is a two-position three-way electromagnetic ball valve with a right-angle opening of the valve core; the three ports of the valve are respectively connected to the water storage tank, the upper and lower water pipes and the emptying pipe; when the valve is not working, the state is closed; when the valve is working , The first state is that the water storage tank is connected to the water pipe, and the second state is that the atmosphere is connected to the water pipe. The utility model has the advantages of simple structure, low production cost, convenient installation and use, strong practicability, and significantly improves the performance of the solar water heater.

Description

Solar Water Heater Pipeline Antifreeze Valve

technical field

The utility model relates to a pipe antifreeze valve, in particular to a solar water heater pipe antifreeze valve which is used on a solar water heater and can control the emptying of residual water in the pipeline to prevent the pipeline from freezing.

Background technique

Solar water heaters are deeply loved by people because of energy saving, safety and sanitation, and easy to use, and are gradually being widely used in cities and towns. However, due to the relatively cold winter in the northern region, the use of solar water heaters in winter has the problem of freezing and blocking the upper and lower water pipes, resulting in the failure of normal use of solar water heaters. This problem has not been solved satisfactorily for many years. In order to solve this problem, a pipeline emptying valve is basically used now to drain the water in the pipeline to avoid freezing. There are many problems in the use of existing pipeline emptying valves, mainly in the following aspects: 1. The existing emptying valves use micro-motors to control the opening and closing of the emptying valves, so the torque-changing gears of micro-motors A variety of reasons, such as wear, damage, loosening of gear fixing parts, water seal leakage of the transmission shaft, motor failure, etc., will lead to the failure of the emptying valve, so that the emptying valve cannot work normally; 2. The existing emptying valve must first Only when the emptying valve is closed can the water be filled, if you forget, the water will flow out from the emptying valve, which is cumbersome and inconvenient to use. In a word, there are many problems in the existing emptying valve, and the failure rate is too high, which brings a lot of troubles to after-sales maintenance, dissatisfaction of users, and even affects the reputation of solar water heaters, resulting in negative effects.

Contents of the invention

The purpose of the utility model is to provide a solar water heater pipeline emptying valve with reliable performance, simple structure, strong practicability, convenient use and durability.

The purpose of this utility model is achieved through the following technical solutions: the emptying valve is a two-position three-way electronic control ball valve, and the valve core has a right-angle channel; the three interfaces of the valve are respectively connected with the water storage tank, the upper and lower water pipes and the emptying pipe connect. When the valve is not working, the state is closed; when the valve is working, the first state is that the water storage tank is connected to the water pipe, and the second state is that the water pipe is connected to the atmosphere. Because the utility model is closely connected with the solar water storage device, and the water temperature in the water tank is relatively high, the temperature of the valve body itself is also relatively high, and the water at the valve body opening will not freeze and block; since the water in the lower pipe of the valve body has been drained Empty, so there is no problem of remaining water freezing in the pipeline.

The utility model has the advantages of: firstly, the ball valve is adopted, which overcomes the phenomenon that the valve is easily blocked by scale and causes the valve to be closed tightly, and ensures the performance of the emptying valve; secondly, the electromagnetic coil is used as the power, and there is no The power transmission fault is simpler than that of the motor drive, and there is basically no operating fault; third, the valve is closed when not in use, preventing the water from flowing out of the emptying pipe if the valve is forgotten to be adjusted when the water is supplied; The invention has the advantages of simple structure, low production cost, convenient installation and use, strong practicability, significantly improved performance of the solar water heater, and is beneficial to market competition and popularization of the solar water heater.

Description of drawings

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

In the figure: electronic actuator 1, spool 2, valve body 3.

Detailed ways

The utility model will be further described below in conjunction with accompanying drawing.

The utility model is composed of an electronic actuator 1, a valve core 2 and a valve body 3, wherein the electronic actuator 1 is used to control the state and position of the valve core 2; the valve core 2 is located in the valve body 3, and there is a right-angle channel inside; the valve The body 3 has three interfaces A, B, and C. Among them, the A interface of the valve body 3 is connected to the water storage port of the solar water heater, and the B interface of the valve body 3 at right angles to it is connected to the upper and lower water pipes. The C interface of the valve body 3 is opposite to it. The port is connected to the drain tube. When the spool of the valve is out of service, the three openings are not connected. When in use, the upper and lower water pipes are successively connected to the water storage tank and the emptying pipe. The specific use method is: when the water is supplied, the electronic actuator 1 controls the valve core 2, and the valve is placed in the open state, so that the water storage tank passes through the valve. The A interface of body 3 and the B interface of valve body 3 are connected with the upper and lower water pipes to complete the normal water supply task; when the water supply is completed, the electronic actuator 1 controls the valve core 2, and then puts the solenoid valve in state 2, Make the emptying pipe communicate with the upper and lower water pipes through the C interface of the valve body 3 and the B interface of the valve body 3, so that the remaining water in the pipeline is emptied; finally close the solenoid valve and put it in a stop state. Similarly, when using hot water, put the valve in open state one, the water storage tank is connected with the upper and lower water pipes; Close the solenoid valve and place it in a stop state. In order to enhance performance, the spool 2 preferably adopts a ball valve. Because the utility model is closely connected with the solar water storage device, and the water temperature in the water tank is relatively high, the temperature of the valve body itself is also relatively high, and the water at the valve body mouth will not freeze and block; Empty, so there is no problem of remaining water freezing in the pipeline.

During use, the A interface of the valve body 3 of the present utility model is connected with the water storage port of the solar water heater, the B interface of the valve body 3 is connected with the upper and lower water pipes, the C interface of the valve body 3 is connected with the emptying pipe, and the electronic actuator 1 The signal control line can be connected to the indoor controller, and the installation is very simple.

Claims (2)

1. solar energy water heater pipe frost valve, by electronic actuators (1), spool (2) and valve body (3) constitute, and it is characterized in that spool (2) is a two position three-way valve, has right angle channel in the spool.

2. according to the described solar energy water heater pipe frost valve of claim 1, it is characterized in that spool (2) is a ball-type.

Images