Constant-temperature adjustable automatic exhaust device

Abstract

The invention discloses a constant-temperature adjustable automatic exhaust device. The device comprises a lower valve body and an upper valve body which are connected into a whole, wherein a memory alloy spring, a sealing plug, a first sealing ring, an adjusting spring, an adjusting connector and an adjusting valve rod are arranged in an inner cavity formed by connecting the lower valve body andthe upper valve body; and the sealing plug slides in the lower valve body and the upper valve body under the combined action of the memory alloy spring and the adjusting spring, and the upper part ofthe sealing plug is communicated with the external space through an exhaust hole penetrating through the adjusting connector and the adjusting valve rod. According to the device, the elastic force ofthe adjusting spring is adjusted and the characteristic that the alloy memory spring can automatically stretch out and draw back along with the change of temperature to generate different elastic forces is matched, the sealing plug is pushed to move up and down in a penetrating mode, a vent hole in the lower valve body is opened and closed, and the purposes of exhausting and pressure relief are achieved; and the whole device is ingenious in structure, different exhaust starting temperature values can be set, and automatic exhaust operation is achieved.

Description

technical field [0001] The invention relates to the field of electric radiators, electric towel racks and electric drying racks in the HVAC industry, in particular to an automatic exhaust device with adjustable constant temperature, which is applied to electric towel racks and drying racks. Background technique [0002] In the production and application process of electric radiators, electric drying racks and electric towel racks in the HVAC industry, especially electric radiators, electric drying racks and electric towel racks that conduct heat through liquid media, as the electric heating elements start to work , the temperature of the liquid medium starts to rise synchronously, the volume of the liquid medium in the cavity of the electric heating towel rack will expand due to heating, and in a closed environment, when it reaches the critical point, the internal pressure will rise sharply, if the pressure in the cavity of the electric heating towel rack If it cannot be rel...

AI Technical Summary

Problems solved by technology

[0002] In the production and application process of electric radiators, electric drying racks and electric towel racks in the HVAC industry, especially electric radiators, electric drying racks and electric towel racks that conduct heat through liquid media, as the electric heating elements start to work , the temperature of the liquid medium starts to rise synchronously, the volume of the liquid medium in the cavity of the electric heating towel rack will expand due to heating, and in a closed environment, when it reaches the critical point, the internal pressure will rise sharply, if the pressure in the cavity of the electric heating towel rack Unable to be released, long-term exposure to high pressure will cause the product to deform, or even burst and cause injury accidents

[0003] At present, the solutions used by electric towel racks generally have two types: with exhaust valve and without exhaust valve, but no matter which technical solution has shortcomings: 1. For electric towel racks with exhaust valves, most of them are manual. The exhaust valve needs to be manually exhausted and released according to whether there is pressure or not, which is very unsafe and unreliable; 2. For the electric towel rack without exhaust valve, it is necessary to consider the liquid medium in the design Expansion coefficient and ultimate pressure after temperature rise, if the amount of liquid filling is insufficient, there will be no temperature in the non-liquid medium of the electric towel rack, which will affect the performance of drying towels and clothes

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