A thermostatic valve for precisely controlling the temperature of water

By setting an axially telescopic sealing sleeve and a stepper motor in conjunction with the control module, the problems of wear and low accuracy of the sealing ring of the existing thermostatic valve are solved, realizing the airtightness and life extension of the thermostatic valve, and precise temperature control.

CN114593233BActive Publication Date: 2026-07-17陈晓东
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
陈晓东
Filing Date
2022-03-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing thermostatic valves suffer from friction between the sealing ring and the housing during adjustment, resulting in uneven movement, easy wear of the sealing ring, affecting airtightness and service life, low precision, and insufficient accuracy of manual adjustment, making them unsuitable for use in laboratories or high-requirement environments.

Method used

A thermostatic valve capable of precisely controlling the outlet water temperature was designed by using an axial sealing sleeve in conjunction with a stepper motor and a control module. This method of using an axial sealing sleeve in conjunction with a stepper motor and a control module resulted in a thermostatic valve capable of precisely controlling the outlet water temperature. Another method of designing a thermostatic valve capable of precisely controlling the outlet water temperature was achieved by using an axially expandable sealing sleeve in conjunction with a stepper motor and a control module.

Benefits of technology

This design avoids friction between the sealing ring and the housing during the adjustment process, improving airtightness and service life, reducing motor power consumption, and ensuring the accuracy and stability of temperature regulation.

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    Figure CN114593233B_ABST
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Abstract

The application belongs to the technical field of thermostat valve manufacturing, and specifically discloses a thermostat valve capable of precisely controlling water outlet temperature, which comprises a shell, two water inlets are arranged on the side wall of the shell, a piston is arranged between the two water inlets in the shell, a water outlet is arranged at one end of the shell, a temperature sensing bag is arranged on the side of the shell facing the water outlet through a spring, a thimble is arranged on the side of the piston away from the water outlet in an axial direction, a through hole is arranged on the piston away from the thimble in an axial direction, a sleeve is arranged on the end of the shell away from the water outlet in an axial direction, the sleeve is provided with a sliding part, an axial telescopic sealing sleeve is hermetically arranged on the end face of the sliding part facing the shell, the end of the sealing sleeve away from the sliding part is hermetically connected with the side wall of the shell, a lead screw is arranged on the sleeve and engaged with a screw hole, a stepping motor for controlling the lead screw is arranged on the sleeve, a reset sensor is further arranged on the sleeve, the output end of a control module is electrically connected with the stepping motor, and the input end of the control module is electrically connected with the reset sensor, so that the problems of low precision and short service life of the existing thermostat valve are solved.
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