Open and pressure-bearing type dual-purpose solar water heater

Abstract

An open and pressure-bearing type dual-purpose solar water heater comprises a solar water heater support, a solar heat collector, a heat-preservation water tank, a control instrument and a connecting pipeline; the heat-preservation water tank is an open type non-pressure-bearing water tank, a support is arranged in the heat-preservation water tank, a metal coil is installed on the support, and two ends of the metal coil penetrate through the heat-preservation water tank to form an inlet and an outlet of the metal coil; and the connecting pipeline comprises a cold water pipeline connected with the inlet of the metal coil, a hot water pipeline connected with the outlet of the metal coil, and a water inlet and outlet pipeline connected with the heat-preservation water tank, and a communicating pipeline is arranged between the water inlet and outlet pipeline and the hot water pipeline. The open and pressure-bearing type solar water heater can achieve two functions of water use of an open (non-pressure-bearing) type water heater or a pressure bearing type water heater in the same water heater, and is convenient to operate, and the functions can be automatically switched only through pressing a button; and the pressure water is clean, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to daily necessities, in particular to an open and pressure-bearing dual-purpose solar water heater. Background technique [0002] The solar water heater of prior art mainly contains two classes; The one, open (non-pressurized) solar water heater, the 2nd, pressure-bearing type solar water heater. [0003] The water storage tank of the open (non-pressurized) solar water heater has an air outlet and air supply hole. The water tank is open. The water storage tank and heat collecting tube of an open (non-pressurized) solar water heater cannot bear the pressure of tap water. The pressure of the released hot water is mainly generated by the height difference between the water heater and the faucet. When the faucet is higher than the water heater, it cannot be released without the help of a water pump. hot water. The characteristic of this type of water heater is that the manufacturing cost is relatively low, and the main disadvantage...

AI Technical Summary

Problems solved by technology

The characteristic of this type of water heater is that the manufacturing cost is relatively low, and the main disadvantage is that it cannot bear pressure, the water pressure released is small, and it is uncomfortable to take a bath.

[0004] The pressure-bearing solar water heater is that both the water tank and the heat collector can withstand the water pressure of tap water. The hot water is pressed out by entering the cold water. The main feature of this type of product is that it can withstand the pressure of tap water, and the pressure of the hot water released is relatively high. However, the disadvantages are high manufacturing cost, complex production process, poor reliability, and high possibility of water leakage from the water tank and heat collector.

[0005] In recent years, a kind of pressure-bearing and open dual-purpose solar water heater has also appeared in the market, but it mainly relies on an automatic closing exhaust and air supply regulating valve to achieve dual-purpose functions, but the above-mentioned problems have not been solved.

Images