Temperature measuring device for thermotechnical pipeline

Abstract

The utility model provides a temperature measuring device for a thermotechnical pipeline, and relates to the technical field of thermotechnical pipeline detection, the temperature measuring device comprises a temperature measuring resistor and a controller communicated with the temperature measuring resistor, a connecting sleeve is arranged between the thermotechnical pipeline and the temperature measuring resistor, the inner end of the connecting sleeve is sealed, and a connecting groove with an outward opening is formed in the connecting sleeve; the temperature measuring resistor is detachably mounted in the connecting groove; the inner end of the connecting sleeve penetrates through the thermotechnical pipeline and is in sealed connection with the thermotechnical pipeline; the connecting sleeve is made of a heat conducting material, the temperature of fluid at the inner end of the thermotechnical pipeline is quickly and accurately transmitted to the temperature measuring resistor, and the temperature measuring resistor transmits a temperature signal to the controller; and the temperature measuring resistor is detachably mounted in the connecting groove, so that the temperature measuring resistor is convenient to mount and replace, and online inspection and replacement of the temperature measuring resistor can be realized.

Description

Technical Field

[0001] The present application belongs to the technical field of thermal pipeline detection, and more specifically, relates to a temperature measuring device for thermal pipelines. Background Art

[0002] The vulcanization process in tire manufacturing usually uses high-temperature steam to heat the semi-finished tire rubber embryo, steaming the rubber until it reaches a certain level of toughness, wear resistance and other product properties, and then produces a finished tire. This process is called the vulcanization process.

[0003] The high-temperature steam must be used reasonably during the vulcanization process to control the temperature, pressure and time of heating the tire embryo, which are called the three major elements in the tire vulcanization process. The temperature of the steam in the thermal pipeline must be detected online in real time; when the temperature measuring resistor fails, it is necessary to quickly repair or replace the high-temperature and high-pressure thermal pipeline.

[0004] The existing temperature measuring devices have the following main disadvantages: the temperature measuring resistor is inserted into the thermal pipeline and directly contacts with the high-temperature steam, which is easy to be damaged; the temperature measuring resistor is not inserted into the thermal pipeline, and the accurate steam temperature cannot be detected; the temperature measuring resistor is not removable, and when it is found to be damaged during maintenance, it cannot be replaced in time, which delays production. Summary of the invention

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a temperature measuring device for thermal pipelines. The technical solution adopted in this application is:

[0006] A temperature measuring device for a thermal pipeline comprises a temperature measuring resistor and a controller connected to the temperature measuring resistor. A connecting sleeve is arranged between the thermal pipeline and the temperature measuring resistor, the inner end of the connecting sleeve is sealed, a connecting groove with an opening facing outward is arranged in the connecting sleeve, and the temperature measuring resistor is detachably installed in the connecting groove; the inner end of the connecting sleeve passes through the thermal pipeline and forms a sealed connection with the thermal pipeline; the connecting sleeve is made of heat-conducting material.

[0007] Preferably, the connecting sleeve is cylindrical.

[0008] Preferably, the outer diameter of the connecting sleeve increases from inside to outside along the axial direction.

[0009] Preferably, the outer diameter of the connecting sleeve increases in a step-by-step manner, and a connecting hole adapted to the connecting sleeve is provided on the thermal pipeline.

[0010] Preferably, the connecting sleeve is provided with a positioning portion and a connecting portion in sequence from the outside to the inside, and the positioning portion is abutted against the outside of the thermal pipeline; the connecting portion is provided with an external thread on the outside, and the connecting hole is provided with an internal thread matching the external thread.

[0011] Preferably, the connecting groove is adapted to the shape of the temperature measuring resistor, and the side surface of the temperature measuring resistor is against the side wall of the connecting groove.

[0012] Preferably, the connecting groove is cylindrical.

[0013] Preferably, a temperature transmitter is provided between the temperature measuring resistor and the controller.

[0014] Preferably, the controller adopts PLC.

[0015] The advantages of the present application are as follows: a connecting sleeve is provided between the thermal pipeline and the temperature measuring resistor, and the connecting sleeve is made of heat-conducting material, which quickly and accurately transmits the temperature of the fluid at the inner end of the thermal pipeline to the temperature measuring resistor, and the temperature measuring resistor transmits the temperature signal to the controller; the inner end of the connecting sleeve is sealed, and a connecting groove with an opening facing outward is provided in the connecting sleeve, and the temperature measuring resistor can be detachably installed in the connecting groove; by providing the connecting sleeve, during the tire vulcanization process, the temperature measuring resistor can be quickly installed, disassembled, and replaced without the need to discharge the pressure of the thermal pipeline, thereby realizing online inspection and replacement of the temperature measuring resistor, improving the safety factor of online maintenance of the temperature measuring device, improving the maintenance efficiency, improving the product qualification rate, and extending the service life of the temperature measuring resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative labor.

[0017] Figure 1 is a schematic diagram of a temperature measuring device;

[0018] Figure 2 It is a schematic diagram of thermal pipeline;

[0019] Figure 3 is a schematic diagram of a connecting sleeve;

[0020] Figure 4 Schematic diagram of a temperature measuring resistor.

[0021] Explanation of symbols in the figure:

[0022] 1 is the temperature measuring resistor;

[0023] 2 is a controller, 21 is a temperature transmitter;

[0024] 3 is a thermal pipeline, 31 is a connecting hole;

[0025] 4 is a connecting sleeve, 41 is a connecting groove, 42 is a positioning portion, and 43 is a connecting portion. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] The temperature measuring device for thermal pipeline provided in the embodiment of the present application is now described.

[0028] Example

[0029] like Figure 1 As shown, a temperature measuring device for a thermal pipeline comprises a temperature measuring resistor 1 and a controller 2 connected to the temperature measuring resistor 1. A connecting sleeve 4 is provided between the thermal pipeline 3 and the temperature measuring resistor 1. The inner end of the connecting sleeve 4 is sealed. A connecting groove 41 with an opening facing outward is provided in the connecting sleeve 4. The temperature measuring resistor 1 is detachably installed in the connecting groove 41. The inner end of the connecting sleeve 4 penetrates the thermal pipeline 3 and forms a sealed connection with the thermal pipeline 3. The connecting sleeve 4 is made of heat-conducting material, and quickly and accurately transmits the temperature of the fluid at the inner end of the thermal pipeline 3 to the temperature measuring resistor 1. The temperature measuring resistor 1 transmits the temperature signal to the controller 2.

[0030] like Figure 2 and Figure 3 As shown, the connecting sleeve 4 is cylindrical, has a stable structure and is easy to process; the inner end of the connecting sleeve 4 passes through the thermal pipeline 3, and the outer surface of the connecting sleeve 4 is smooth, which can reduce the resistance to the thermal pipeline 3.

[0031] The outer diameter of the connecting sleeve 4 increases from the inside to the outside along the axial direction, which can increase the contact area between the connecting sleeve 4 and the thermal pipeline 3, ensure that the connecting sleeve 4 and the thermal pipeline 3 form a sealed connection, and avoid fluid leakage.

[0032] The outer diameter of the connecting sleeve 4 increases in a step-like manner, and a connecting hole 31 adapted to the connecting sleeve is provided on the thermal pipeline 3. A slight axial outward displacement of the connecting sleeve 4 will not affect the sealing between the connecting sleeve 4 and the thermal pipeline 3; a sealing ring can be installed at the step to further ensure the sealing between the connecting sleeve 4 and the thermal pipeline 3.

[0033] The connecting sleeve 4 is provided with a positioning portion 42 and a connecting portion 43 in sequence from outside to inside. The positioning portion 42 is close to the outside of the thermal pipe 3; the connecting portion 43 is provided with an external thread on the outside, and the connecting hole 31 is provided with an internal thread matching the external thread.

[0034] like Figure 1 , Figure 3 and Figure 4As shown, the connecting groove 41 is adapted to the shape of the temperature measuring resistor 1, and the side of the temperature measuring resistor 1 is against the side wall of the connecting groove 41. The contact area between the connecting groove 41 and the temperature measuring resistor 1 is large, and the heat conduction effect is good. The temperature measuring resistor 1 can measure the temperature of the fluid more accurately.

[0035] The connection groove 41 is cylindrical, which is convenient for the temperature measuring resistor 1 to be inserted into the connection groove 41. The temperature measuring resistor 1 is easy to install and replace, and the temperature measuring resistor 1 can be checked and replaced online. By setting the connection sleeve 4, the temperature measuring resistor 1 can be quickly installed, disassembled, and replaced without the need to discharge the pressure of the thermal pipeline 3 during the tire vulcanization process, so that the temperature measuring resistor 1 can be checked and replaced online, thereby improving the safety factor of the online maintenance of the temperature measuring device, improving the maintenance efficiency, and extending the service life of the temperature measuring resistor 1.

[0036] A temperature transmitter 21 is provided between the temperature measuring resistor 1 and the controller 2. The temperature signal of the temperature measuring resistor 1 is transmitted to the temperature transmitter 21. After the temperature transmitter 21 performs circuit processing such as voltage stabilization filtering, operational amplification, nonlinear correction, V / I conversion, constant current and reverse protection, it is converted into a signal that is linearly related to the temperature and transmitted to the controller 2.

[0037] In this embodiment, the controller 2 adopts PLC.

[0038] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A temperature measuring device for a thermal pipeline, comprising a temperature measuring resistor and a controller connected to the temperature measuring resistor, characterized in that: A connecting sleeve is provided between the thermal pipeline and the temperature measuring resistor, the inner end of the connecting sleeve is sealed, a connecting groove with an outward opening is provided in the connecting sleeve, and the temperature measuring resistor is detachably installed in the connecting groove; the inner end of the connecting sleeve passes through the thermal pipeline and forms a sealed connection with the thermal pipeline; the connecting sleeve is made of heat-conducting material.

2. The temperature measuring device for thermal pipeline according to claim 1, characterized in that: The connecting sleeve is in a cylindrical shape.

3. The temperature measuring device for thermal pipeline according to claim 2, characterized in that: The outer diameter of the connecting sleeve increases from inside to outside along the axial direction.

4. The temperature measuring device for thermal pipeline according to claim 3 is characterized in that: The outer diameter of the connecting sleeve increases in a step-like manner, and the thermal pipeline is provided with a connecting hole adapted to the connecting sleeve.

5. The temperature measuring device for thermal pipeline according to claim 4 is characterized in that: The connecting sleeve is provided with a positioning portion and a connecting portion in sequence from the outside to the inside, and the positioning portion is close to the outside of the thermal pipe; the connecting portion is provided with an external thread on the outside, and the connecting hole is provided with an internal thread matching the external thread.

6. The temperature measuring device for thermal pipeline according to any one of claims 1 to 5, characterized in that: The connecting groove is adapted to the shape of the temperature measuring resistor, and the side surface of the temperature measuring resistor is against the side wall of the connecting groove.

7. The temperature measuring device for thermal pipeline according to claim 6, characterized in that: The connecting groove is in a column shape.

8. The temperature measuring device for thermal pipeline according to any one of claims 1 to 5, characterized in that: A temperature transmitter is arranged between the temperature measuring resistor and the controller.

9. The temperature measuring device for thermal pipeline according to claim 8, characterized in that: The controller adopts PLC.

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