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CN-117282377-B - Reation kettle temperature measurement structure

CN117282377BCN 117282377 BCN117282377 BCN 117282377BCN-117282377-B

Abstract

The temperature measuring structure of the reaction kettle comprises a thermocouple extending downwards from top and a temperature measuring sleeve coaxially sleeved on the thermocouple, wherein the temperature measuring sleeve comprises a main body in a regular triangular prism shape and a sealing plate connected to the upper end face of the main body, the lower end of the main body is gradually contracted inwards and abutted against the outer wall of the thermocouple, a sealing glue is coated on the abutting face of the main body and the thermocouple, one side wall of the main body is parallel to a virtual plane formed by the axis of the temperature measuring sleeve and the axis of a stirring shaft, the temperature measuring sleeve has higher strength so as to resist material flow impact, the thermocouple in the temperature measuring sleeve is protected from damage, the service life of the thermocouple and the temperature measuring sleeve is prolonged, a sealed heat insulation cavity is formed between the temperature measuring sleeve and the thermocouple in a surrounding mode, temperature transmission of materials above a temperature measuring point is avoided, accuracy of temperature detection is improved, a material flow can be split by utilizing the tip of the opposite side of the main body parallel to the side wall of the virtual plane, stirring effect is improved, and impact force of the material flow on the main body is relieved.

Inventors

  • WANG XIAOYUAN
  • ZHOU JIAQUAN

Assignees

  • 苏州市锦翔压力容器制造有限公司

Dates

Publication Date
20260505
Application Date
20220627

Claims (5)

  1. 1. The temperature measuring structure of the reaction kettle comprises a thermocouple and a temperature measuring sleeve, wherein the thermocouple extends downwards from top to bottom, and the temperature measuring sleeve is coaxially sleeved on the thermocouple; The method is characterized in that: The bottom of the thermocouple is provided with a temperature measuring head, the temperature measuring head is positioned below the temperature measuring sleeve, the reaction kettle further comprises a turbine stirrer and an anchor stirrer which are connected to a stirring shaft, the anchor stirrer comprises an arc-shaped paddle positioned below the turbine stirrer and a vertical paddle positioned outside the turbine stirrer, and the temperature measuring head is lower than the turbine stirrer and higher than the arc-shaped paddle; The temperature measuring sleeve is inserted between the turbine stirrer and the vertical paddle, the shortest distance between the axis of the temperature measuring sleeve and the turbine stirrer is equal to the distance between the axis of the temperature measuring sleeve and the vertical paddle, the temperature measuring sleeve comprises a regular triangular prism-shaped main body and a sealing plate connected with the upper end face of the main body, the lower end of the main body is gradually contracted downwards and abutted against the outer wall of the thermocouple, the abutting face of the main body and the thermocouple is coated with sealant, a sealed heat insulation cavity is formed by enclosing between the inner wall of the main body, the lower surface of the sealing plate and the outer wall of the thermocouple, one side wall of the main body is parallel to a virtual plane formed by the axis of the temperature measuring sleeve and the axis of the stirring shaft, and the tip of the opposite side of the side wall is used for shunting material flow.
  2. 2. The structure of claim 1, wherein the width of the side wall of the main body in the horizontal direction is 8 to 12 times the diameter of the thermocouple.
  3. 3. The structure for measuring the temperature of a reaction kettle according to claim 1, wherein the top of the thermocouple penetrates through the sealing plate and protrudes upwards.
  4. 4. The structure of claim 1, wherein the length of the temperature measuring head in the up-down direction is 5 cm.
  5. 5. The structure for measuring the temperature of a reaction kettle according to claim 1, wherein the distance between the temperature measuring head and the arc-shaped paddle in the up-down direction is 3-5 cm.

Description

Reation kettle temperature measurement structure Statement of divisional application The application relates to a reaction kettle, which is a divisional application of China patent application with the application number 202210734758.2, and is filed by 27 days of 2022 and 06 months. Technical Field The invention relates to the technical field of reaction kettles, in particular to a temperature measuring structure of a reaction kettle. Background The reaction kettle is a container for carrying out physical or chemical reaction on materials, a stirrer for stirring the materials and a temperature measuring structure for monitoring the reaction temperature are arranged in the reaction kettle, the temperature measuring structure is usually a thermocouple, as most of temperature measuring points of the temperature measuring structure are arranged at positions close to the bottom wall of the reaction kettle, in order to shorten the exposure length of the thermocouple, the thermocouple is usually inserted from the side wall or the bottom wall of the reaction kettle, when the stirrer comprises an anchor stirrer, the rotation of the anchor stirrer can cut off the insertion path of the thermocouple from the side wall or the bottom wall of the reaction kettle, so that the thermocouple can only be inserted from the top wall of the reaction kettle, when the temperature measuring point is reached, the length of the thermocouple exposed in the materials is long, the thermocouple is easy to bend due to scouring of material flow, serious damage can be caused, and the materials above the temperature measuring points can also conduct the temperature to the thermocouple, so that the temperature measurement is inaccurate. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a temperature measuring structure of a reaction kettle, which is difficult to damage and accurate in temperature measurement. In order to achieve the purpose, the technical scheme provided by the invention is that the temperature measuring structure of the reaction kettle comprises a thermocouple and a temperature measuring sleeve, wherein the thermocouple extends downwards from top to bottom, and the temperature measuring sleeve is coaxially sleeved on the thermocouple; The temperature measuring sleeve comprises a regular triangular prism-shaped main body and a sealing plate connected to the upper end face of the main body, the lower end portion of the main body is gradually contracted downwards and abutted against the outer wall of the thermocouple, the abutting face of the main body and the thermocouple is coated with sealant, a sealed heat insulating cavity is formed between the inner wall of the main body, the lower surface of the sealing plate and the outer wall of the thermocouple in a surrounding mode, one side wall of the main body is parallel to a virtual plane formed by the axial lead of the temperature measuring sleeve and the axial lead of the stirring shaft, and the tip end of the opposite side of the side wall is used for shunting material flow. Preferably, the width of the sidewall of the body in the horizontal direction is 8 to 12 times the diameter of the thermocouple. Preferably, the top of the thermocouple extends through the closure plate and upwardly. Preferably, the bottom of the thermocouple is a temperature measuring head, and the temperature measuring head is positioned below the temperature measuring sleeve. Further preferably, the length of the temperature measuring head in the up-down direction is 5 cm. Further preferably, the reaction kettle comprises a turbine stirrer and an anchor stirrer which are connected to the stirring shaft, wherein the anchor stirrer comprises an arc-shaped paddle positioned below the turbine stirrer and a vertical paddle positioned outside the turbine stirrer. Further preferably, the temperature measuring head is lower than the turbine stirrer and higher than the arc-shaped paddle. Further preferably, the distance between the temperature measuring head and the arc-shaped paddle in the up-down direction is 3 to 5 cm. Further preferably, the thermometric casing is interposed between the turbine stirrer and the vertical paddle. Further preferably, the shortest distance between the axis line of the temperature measuring sleeve and the turbine stirrer is equal to the distance between the axis line of the temperature measuring sleeve and the vertical paddle. Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the temperature measuring sleeve comprises a regular triangular prism-shaped main body and a sealing plate connected to the upper end face of the main body, the lower end of the main body is gradually contracted downwards and abutted against the outer wall of the thermocouple, sealing glue is coated on the abutting faces of the main body and the thermocouple, one side wall of the main body is