Constant-temperature constant-pressure valve and constant-temperature constant-pressure device

Abstract

The invention provides a constant-temperature constant-pressure valve and a constant-temperature constant-pressure device. The constant-temperature constant-pressure valve comprises a valve body, a piston, a balance valve assembly and a temperature sensing assembly. The valve body is provided with a first cavity, a second cavity, a cold inflow gap and a hot inflow gap, wherein the first cavity and the second cavity are enabled to communicate with each other through the cold inflow gap and the hot inflow gap. The balance valve assembly is located in the second cavity and provided with a hot water inlet channel and a cold water inlet channel. The balance valve assembly slides to change the flows of the two channels, and then constant pressure is achieved. The piston is arranged in the first cavity and matched with the first cavity in a sliding manner. The temperature sensing assembly extends and retracts according to the temperature of mixed water to drive the piston to slide, so that the water inflow amounts of the cold inflow gap and the hot inflow gap are changed, and then constant temperature is achieved. The constant-temperature constant-pressure valve and the constant-temperature constant-pressure device can solve the pressure fluctuation problem and the temperature fluctuation problem at the same time and are suitable for various water heaters, especially a solar water heater; and the constant-temperature constant-pressure valve and the constant-temperature constant-pressure device can be used under the condition that the solar water heater reaches the high temperature of 80-100 DEG C, and the service lives of devices are not influenced.

Description

technical field [0001] The invention relates to the field of constant temperature valves, in particular to a constant temperature and pressure valve and a constant temperature and pressure device. Background technique [0002] Thermostatic valves are loved by people because of the convenience of water temperature adjustment, and are more and more widely used in bathing water supply systems in various occasions. Constant temperature mainly means that users can adjust the outlet water temperature according to actual needs. After the temperature is set, the mixed outlet water temperature remains at the set temperature. The advantage of the thermostatic faucet is that it can avoid the problem of the outlet water temperature fluctuating due to the change of the inlet water pressure or the instability of the inlet water temperature of the ordinary valve core, and it is safe and anti-scalding. [0003] At present, the main disadvantage of ordinary shower faucets on the market is t...

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Problems solved by technology

[0003] At present, the main disadvantage of ordinary shower faucets on the market is that the control of water temperature and water pressure is not stable enough. When the water temperature is unstable, because the cold water pressure of tap water is generally 30%-80% higher than the hot water pressure, the pressure of cold water and hot water will be unbalanced, and the phenomenon of hot and cold will also appear. Users use water heaters to bathe. At this time, the water temperature and water pressure cannot be kept stable, which brings inconvenience to users; in addition, when users use solar water heaters for bathing, one waterway is solar hot water waterway, and the other is tap water waterway. The temperature of the water channel will be too high or too low, resulting in the temperature not being adjusted high or the temperature is too high, and the existing thermostatic valve core is prone to failure when the hot water inlet temperature is 80-100°C

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