Self-operated temperature regulator capable of regulating temperatures of fixed points

Abstract

The invention provides a self-operated temperature regulator capable of regulating temperatures of fixed points. The self-operated temperature regulator comprises a temperature sensor assembly, a temperature regulating assembly, a power output assembly and a valve assembly. The temperature sensor assembly comprises a spiral temperature sensing rod, and temperature sensing agents are filled in the spiral temperature sensing rod. The temperature sensor assembly is connected with the temperature regulating assembly by a capillary tube filled with temperature sensing agents. The temperature regulating assembly comprises a temperature regulating cap, a regulating screw, a regulating piston, thrust bearings and a pointer, the total volume of the temperature sensing agents is computed, and the regulating screw is driven by the temperature regulating cap, so that the regulating piston can move up and down in an upper temperature controller body, the volume can be changed, and an effect of regulating the temperatures of the fixed points can be realized. The power output assembly comprises a thrust shaft and a return spring. The self-operated temperature regulator has the advantages that the temperature regulating agents can generate certain acting force to the upper surface of the thrust shaft under the effect of change of temperatures of controlled media, a valve can be opened and closed under the effect of the acting force, and accordingly the purpose of controlling the temperatures can be achieved.

Description

technical field [0001] The invention relates to the technical field of temperature control devices, in particular to a self-operated temperature regulator capable of adjusting temperature at a fixed point. [0002] Background technique [0003] The working principle of the temperature sensor of the existing self-operated temperature regulating valve is that the temperature sensing rod transmits the temperature of the controlled medium to the temperature sensing agent sheath. Under the action of temperature, the temperature sensing agent expands or contracts, and the volume change of the temperature sensing agent Then it is transmitted to the temperature regulating part through the capillary part to control the opening or closing of the valve. Because the temperature of the medium is not directly transmitted to the temperature-sensing agent in this temperature-sensing process, but is first passed through the temperature-sensing rod and then indirectly transmitted to the temp...

AI Technical Summary

Problems solved by technology

Because the temperature of the medium is not directly transmitted to the temperature-sensing agent in this temperature-sensing process, but is first passed through the temperature-sensing rod and then indirectly transmitted to the temperature-sensing agent, so the corresponding speed of the valve is slow, and at the same time due to multiple transmissions Also caused the error of temperature control

In addition, the existing self-operated temperature regulating valve, the set temperature is roughly adjusted, and cannot be adjusted linearly, so the scope of use is greatly limited; and the traditional thermostat is not designed with a return spring, but only relies on temperature control The volume shrinkage of the agent itself opens the valve, which leads to a slower opening speed of the valve and affects the process requirements.

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