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Preparation method of medium for wax type thermostat with stable thermal conductivity

A wax-type thermostat and thermal conductivity technology, which is applied in chemical instruments and methods, petroleum wax refining, heat exchange materials, etc., can solve problems affecting the processing process and high viscosity of the system, etc.

Active Publication Date: 2017-11-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tackifiers used in this patent are all organic substances with very good compatibility with the base materials. To prevent the metal powder from settling, a large amount of tackifiers need to be added, which will lead to a high viscosity of the system and affect the subsequent processing.

Method used

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  • Preparation method of medium for wax type thermostat with stable thermal conductivity
  • Preparation method of medium for wax type thermostat with stable thermal conductivity
  • Preparation method of medium for wax type thermostat with stable thermal conductivity

Examples

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preparation example Construction

[0062] The preparation of the medium for the wax-type thermostat with stable thermal conductivity includes two parts: the preparation of the waxy temperature-sensitive medium and the preparation of the medium for the wax-type thermostat.

[0063] Preparation of wax temperature-sensitive medium: the upper part of the sweating dish is connected with a detachable sealing device and connected with a buffer tank and a compressor, and / or the lower part of the sweating dish is connected with a buffer tank and a vacuum pump; a jacket is added outside the sweating dish, and the jacket is connected with a The moving coil is connected to the circulation system, and the circulation system has the function of program cooling / heating; the paraffin wax with a suitable melting point is used as the raw material, heated and melted, then put into a sweating dish, and the coil is immersed in the raw material wax layer and fixed; The low-temperature medium is passed into the tube to reduce the temp...

Embodiment 1

[0067] This embodiment includes three parts: (A), (B) preparation of wax temperature-sensitive medium, and (C) preparation of medium for wax-type thermostat.

[0068] (A) Preparation of waxy temperature-sensitive medium (I)

[0069] This part includes: (A1) preparation work, (A2) charging, (A3) cooling - high temperature constant temperature - cooling - low temperature constant temperature crystallization, (A4) heating - constant temperature sweating, (A5) crude product collection, (A6) product refining Wait for the process.

[0070] (A1) Preparations

[0071] Connect the sealing system on the upper part of the sweating dish with the buffer tank and the compressor. Install the buffer tank on the lower part of the sweating dish and connect it with the vacuum pump.

[0072] The lower part of the sweating dish plate is cushioned with water.

[0073] Connect the jacket of the sweating dish with a movable coil and a circulation system with programmed cooling / heating function, u...

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Abstract

The invention discloses a method for preparing a medium for a wax type thermostat with stable thermal conductivity. The method adopts an improved sweating device, adding a high temperature and constant temperature stage at an appropriate temperature during the cooling and cooling process, and evenly covering the surface of the wax layer with mixed metal particles after the cooling process, and forcing airflow through the wax layer during the heating and sweating process, Carry out liquid components. The method of the invention has the advantages of low equipment investment, simple production process, low operating cost, and no solvent pollution; the product has a narrow temperature control range and stable thermal conductivity, and can be used for wax temperature control valves, especially wax temperature sensitive valves for thermostats. medium.

Description

technical field [0001] The invention belongs to the technical field of special wax production, in particular to a method for preparing a wax-type thermostat medium with stable thermal conductivity. Background technique [0002] The wax temperature control valve uses wax as the medium for sensing temperature changes. When the ambient temperature changes, the volume of the wax will change, and then control the valve opening, thereby adjusting the flow rate and achieving the purpose of adjusting and controlling the temperature. The waxy substances used in waxy temperature control valves are called temperature-sensitive media. [0003] The development of wax temperature control valves began in the early twentieth century, and its purpose was to replace the bellows components used in the cooling system of internal combustion engines for temperature control. Wax temperature control valve is a self-operated temperature and flow automatic control device integrating sensing, amplifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/42C09K5/06
Inventor 孙剑锋王立言郭慧兵吴颖赵亮
Owner CHINA PETROLEUM & CHEM CORP
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