Bearing solar water heater pressure relief and emptying system

Abstract

The invention provides a pressure relief emptying system for a bearing solar water heater, consisting of a water tank, an upper water pipe, a lower water pipe, a multidirectional control valve, a non-return valve, a negative pressure valve and a water faucet, wherein, the multidirectional control valve is connected between the water faucet and the upper water pipe and between a water outlet pipe and a running water pipe and is provided with four interfaces which are respectively connected with the running water pipe, the upper water pipe, the lower water pipe and the water faucet; the upper water pipe and the lower water pipe are respectively connected with a water inlet and a water outlet of the water tank of the solar water heater; the non-return valve is arranged on the upper water pipe; and the negative pressure valve is arranged on the water tank. The multidirectional control valve has the emptying function, and water feeding, water discharging and water emptying are completed by utilization of the multidirectional control valve, thereby the pressure relief emptying system for the bearing solar water heater reduces consumption of water pipes, joints and so on, reduces the assembly cost and the conditions of freezing and plugging and cold water exhaustion, realizes the water emptying of the lower water pipe and is more convenient to use.

Description

Technical field: [0001] The invention relates to a solar water heater device, in particular to a pressure relief and emptying device for a pressurized solar water heater. Background technique: [0002] At present, there are many varieties of solar water heaters with top water tank structure on the market, but their basic structure generally includes heating vacuum tubes, water tanks, upper and lower water pipes, return water pipes, valves, etc., and enter the water tank through the upper water pipe. Finally, the water is returned by the return pipe to ensure that the water is filled with the water heater. When you stop using it, cut off the water source. Because the outlet pipe of the solar energy is closed, the water in the outlet pipe cannot flow out and stays in the pipe, forming cold water in the pipe. It is easy to freeze in winter, causing it to be easily blocked by ice and must be drained of cold water before use. problem of using it. Invention content: [0003] T...

AI Technical Summary

Problems solved by technology

When you stop using it, cut off the water source. Since the outlet pipe of the solar energy is closed, the water in the outlet pipe cannot flow out and stays in the pipe, forming cold water in the pipe. It is easy to freeze in winter, causing it to be easily blocked by ice and must be drained of cold water before use. problem of using

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