Heating furnace tube temperature detection device and system

Abstract

The utility model discloses a heating furnace tube temperature detection device and system. The device is used for being installed on an installation support on the furnace wall of a heating furnace. The high-temperature protective cover pipe is installed on the installation support and used for penetrating through the furnace wall, a protective space is formed in the high-temperature protective cover pipe, and a protective gas connector is formed in the end, away from the heating furnace, of the protective space; the infrared image acquisition unit is mounted at one end, extending into the heating furnace, of the protection space; and the transmission unit is mounted on the mounting bracket and is connected with the high-temperature protective cover pipe to drive the high-temperature protective cover pipe to extend and retract relative to the furnace wall. The infrared image acquisition unit is used for acquiring the temperature of the furnace tube of the heating furnace, comprehensive temperature detection can be performed on the furnace tube, the high-temperature protective cover tube is used for protecting the infrared image acquisition unit, the infrared image acquisition unit can be prevented from being damaged by high temperature, and in addition, the high-temperature protective cover tube is driven by the transmission unit; and the device can be retracted out of the heating furnace in time in case of equipment damage risk, so that the device can be used for a long time.

Description

Technical Field

[0001] This application relates to the technical field of temperature monitoring of chemical equipment, and particularly to a temperature detection device and system for the furnace tubes of a heating furnace. Background Art

[0002] A heating furnace is a commonly used heat conduction device in the chemical industry. The furnace tubes of the heating furnace are long-term in a high-temperature flame and flue gas environment caused by the combustion of purge gas and coke oven gas. The highest temperature in the furnace chamber can reach over 1000°C. The furnace tubes that are in a baking state in the furnace chamber for a long time have extremely harsh operating conditions and are extremely prone to major safety hazards of accidents caused by uneven distribution of combustion temperature or uneven distribution of combustion burners, resulting in local overheating of the furnace tubes.

[0003] Currently, infrared thermometers, thermocouples, high-temperature radiometers, etc. are mostly used for detecting the surface temperature of the furnace tubes of heating furnaces in China. The biggest problem with these detection devices is that they can only perform point measurements on the measurement targets, with a relatively large randomness. It is very difficult to comprehensively grasp the temperature distribution of the furnace tubes and the temperature change situation and trend within a period of time, and it is easy to neglect local overheating of the furnace tubes, causing damage and harm to the furnace tubes. Utility Model Content

[0004] The purpose of this application is to overcome the deficiencies of the prior art and provide a temperature detection device and system for the furnace tubes of a heating furnace that can comprehensively detect the temperature of the furnace tubes.

[0005] The technical solution of this application provides a temperature detection device for the furnace tubes of a heating furnace, including:

[0006] A mounting bracket for mounting on the furnace wall of the heating furnace;

[0007] A high-temperature protective cover tube mounted on the mounting bracket and used to penetrate the furnace wall. A protective space is provided inside the high-temperature protective cover tube, and a protective gas interface is provided at one end of the protective space away from the heating furnace;

[0008] An infrared image acquisition unit mounted at one end of the protective space extending into the heating furnace;

[0009] A transmission unit mounted on the mounting bracket and connected to the high-temperature protective cover tube to drive the high-temperature protective cover tube to expand and contract relative to the furnace wall.

[0010] Further, the mounting bracket includes:

[0011] A mounting plate member for fixedly mounting on the furnace wall. A through hole for passing through the high-temperature protective cover tube is provided on the mounting plate member;

[0012] A closed cover cylinder installed on the installation plate member and around the through hole, and the high-temperature protective cover tube extends into the heating furnace through the through hole after extending into the closed cover cylinder.

[0013] Further, the closed cover cylinder includes a cylinder body, a damper retaining ring and a damper;

[0014] One end of the cylinder body covers the periphery of the through hole, and the other end is installed with the damper retaining ring, and a door opening is provided on the damper retaining ring;

[0015] The damper is rotatably installed inside the damper retaining ring through an elastic member. When the high-temperature protective cover tube retracts to disengage from the closed cover cylinder, the damper blocks the door opening under the action of the elastic member.

[0016] Further, a cooling pipeline is provided in the installation plate member, and one end of the cooling pipeline is provided with a cooling gas interface.

[0017] Further, a pressure detection member is installed in the protection space, and a temperature detection member is installed on the infrared image acquisition unit.

[0018] The technical solution of the present application also provides a heating furnace furnace tube temperature detection system, including a gas path control device, an explosion-proof electric control device, and at least one heating furnace furnace tube temperature detection device as described above;

[0019] The gas path control device includes a gas tank, and the gas tank is connected to the protection gas interface through a first pipeline;

[0020] The explosion-proof electric control device is communicatively connected to the infrared image acquisition unit.

[0021] Further, a cooling pipeline is provided in the installation bracket, one end of the cooling pipeline is provided with a cooling gas interface, and the gas tank is connected to the cooling gas interface through a second pipeline;

[0022] A switching valve is installed between the gas tank and the first pipeline and the second pipeline;

[0023] The gas path control device is also provided with an explosion-proof pressure switch, and the explosion-proof pressure switch is connected to the first pipeline and the second pipeline.

[0024] Further, the transmission unit is a telescopic cylinder, and the telescopic cylinder is provided with a withdrawal interface and a propulsion interface;

[0025] The withdrawal interface is connected to the gas tank through a fourth pipeline, the propulsion interface is connected to the gas tank through a fifth pipeline, explosion-proof solenoid valves are installed between the fourth pipeline and the gas tank and between the fifth pipeline and the gas tank, and the explosion-proof solenoid valves are communicatively connected to the explosion-proof electric control device.

[0026] Furthermore, a barometric pressure detector is installed inside the protective space, and a temperature detector is installed on the infrared image acquisition unit. Both the barometric pressure detector and the temperature detector are communicatively connected to the explosion-proof electronic control device.

[0027] Furthermore, a communication device and a remote control terminal are further included. The remote control terminal is communicatively connected to the explosion-proof electronic control device through the communication device.

[0028] After adopting the above technical solution, the following beneficial effects are achieved:

[0029] In this application, an infrared image acquisition unit is adopted to collect the temperature of the heating furnace tubes, which can comprehensively detect the temperature of the tubes. The high-temperature protective tube protects the infrared image acquisition unit and can prevent the infrared image acquisition unit from being damaged by high temperature. In addition, the high-temperature protective tube is driven by a transmission unit and can retract outside the heating furnace in time when there is a risk of equipment damage, enabling the equipment to be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Referring to the drawings, the disclosure of this application will become easier to understand. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the protection scope of this application. In the figures:

[0031] Figure 1 is a schematic structural diagram of a heating furnace tube temperature detection device according to an embodiment of this application;

[0032] Figure 2 is a schematic structural diagram of a mounting bracket according to an embodiment of this application;

[0033] Figure 3 is a schematic structural diagram of a heating furnace tube temperature detection system according to an embodiment of this application;

[0034] Figure 4 is a schematic structural diagram of a gas path control device according to an embodiment of this application;

[0035] Figure 5 is a schematic circuit diagram of a heating furnace tube temperature detection system according to an embodiment of this application.

[0036] List of reference numerals:

[0037] Furnace wall 001: mounting hole 010;

[0038] Mounting bracket 01: mounting plate member 11, through hole 111, cooling pipeline 112, cooling gas interface 113, closed cover cylinder 12, cylinder body 121, air door retaining ring 122, air door hole 1221, air door 123;

[0039] High-temperature protective tube 02: protective space 21, protective gas interface 22;

[0040] Infrared image acquisition unit 03;

[0041] Drive unit 04: Exit interface 41, propulsion interface 42;

[0042] Pneumatic control device 05: Gas tank 51, first pipeline 52, second pipeline 53, switch valve 54, explosion-proof pressure switch 55, third pipeline 56, explosion-proof solenoid valve 57, fourth pipeline 58, pressure reducing valve 59;

[0043] Explosion-proof electric control device 06, communication device 07, remote control terminal 08. Specific implementation manners

[0044] The following further describes the specific implementation manners of the present application with reference to the accompanying drawings.

[0045] It is easy to understand that according to the technical solution of the present application, under the condition of not changing the essence of the present application, various structural forms and implementation manners that can be mutually replaced by those of ordinary skill in the art. Therefore, the following specific implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present application, and should not be regarded as the whole of the present application or as a limitation or restriction on the technical solution of the application.

[0046] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings, and they are relative concepts. Therefore, they may change accordingly according to their different positions and different usage states. Therefore, these or other orientation terms should not be interpreted as restrictive terms. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0048] Heating furnace furnace tube temperature detection device:

[0049] The heating furnace furnace tube temperature detection device in the embodiment of the present application, as Figure 1 shown, includes:

[0050] Mounting bracket 01 for mounting on the furnace wall 001 of the heating furnace;

[0051] A high-temperature protective cover tube 02 installed on an installation bracket 01 and used to pass through a furnace wall 001. A protective space 21 is provided inside the high-temperature protective cover tube 02, and a protective gas interface 22 is provided at one end of the protective space 21 away from the heating furnace.

[0052] An infrared image acquisition unit 03 installed at one end of the protective space 21 extending into the heating furnace.

[0053] A transmission unit 04 installed on the installation bracket 01 and connected to the high-temperature protective cover tube 02 to drive the high-temperature protective cover tube 02 to expand and contract relative to the furnace wall 001.

[0054] Specifically, the installation bracket 01 is fixed on the furnace wall 001 of the heating furnace, and the high-temperature protective cover tube 02 is telescopically installed on the installation bracket 01 through the transmission unit 04. An installation hole 010 is formed in the furnace wall 001, and the high-temperature protective cover tube 02 passes through the installation hole 010 and extends into the heating furnace. The transmission unit 04 is used to drive the high-temperature protective cover tube 02 to expand and contract along the axial direction of the installation hole 010.

[0055] A protective space 21 is provided inside the high-temperature protective cover tube 02. A protective gas interface 22 is provided at one end of the protective space 21 away from the heating furnace, and an infrared image acquisition unit 03 is installed at the end extending into the heating furnace. The protective gas interface 22 is used to connect an air pipeline to introduce cooling air into the protective space 21. The protective space 21 has an opening only at the end extending into the heating furnace. After the cooling air enters the protective space 21, it blows out from the opening, thereby forming a cooling air flow around the infrared image acquisition unit 03. Coupled with the protection of the high-temperature protective cover tube 02, the infrared image acquisition unit 03 can be prevented from being damaged by the high temperature in the furnace.

[0056] The infrared image acquisition unit 03 is composed of an infrared camera installed with an infrared high-temperature resistant optical lens. It can acquire infrared images of the combustion in the furnace. By analyzing the infrared images, the staff can obtain the temperatures of various regions in the furnace chamber, so as to comprehensively monitor the temperature in the furnace.

[0057] In the embodiment of the present application, the infrared image acquisition unit 03 is used to acquire the temperature of the furnace tubes of the heating furnace, which can comprehensively detect the temperature of the furnace tubes. The high-temperature protective cover tube 02 protects the infrared image acquisition unit 03 and can prevent the infrared image acquisition unit 03 from being damaged by high temperature. In addition, the high-temperature protective cover tube 03 is driven by the transmission unit 04 and can be retracted outside the heating furnace in time when there is a risk of equipment damage, so that the equipment can be used for a long time.

[0058] In one of the embodiments, as Figure 2 shown, the installation bracket 01 includes:

[0059] The mounting plate member 11 for fixed installation on the furnace wall 001, and the mounting plate member 11 is provided with a through hole 111 for passing through the high-temperature protective cover tube 02;

[0060] The closed cover cylinder 12 mounted on the mounting plate member 11 and located around the through hole 111, and after the high-temperature protective cover tube 02 extends into the closed cover cylinder 12, it extends into the heating furnace through the through hole 111.

[0061] Specifically, the mounting plate member 11 is fixed on the furnace wall through pre-welded parts, and the through hole 111 thereon corresponds to the mounting hole 010 on the furnace wall 001. The closed cover cylinder 12 is mounted around the through hole 111 on the mounting plate member 11, and the high-temperature protective cover tube 02 extends into the furnace in sequence through the closed cover cylinder 12, the through hole 111 and the mounting hole 010. The closed cover cylinder 12 can seal the space between the high-temperature protective cover tube 02 and the furnace wall, preventing excessive heat in the furnace from overflowing through the mounting hole 010 and the through hole 111.

[0062] The closed cover cylinder 12 can be integrally formed with the mounting plate member 11 or installed by welding.

[0063] In one embodiment, as Figure 2 shown, the closed cover cylinder 12 includes a cylinder body 121, a damper retaining ring 122 and a damper 123;

[0064] One end of the cylinder body 121 covers the periphery of the through hole 111, and the other end is provided with a damper retaining ring 122, and the damper retaining ring 122 is provided with a door opening 1221;

[0065] The damper 123 is rotatably mounted on the inner side of the damper retaining ring 122 through an elastic member. When the high-temperature protective cover tube 02 retracts to disengage from the closed cover cylinder 12, the damper 123 blocks the door opening 1221 under the action of the elastic member.

[0066] Specifically, the cylinder body 121 can be set as a ring shape, and the axial direction of the cylinder body 121 is perpendicular to the mounting plate member 11 or set at a certain angle, specifically set according to the extending angle of the high-temperature protective cover tube 02. The damper retaining ring 122 is mounted at the end of the cylinder body 121 away from the mounting plate member 11. The damper retaining ring 122 is in a ring shape, and a door opening 1221 matching the cross section of the high-temperature protective cover tube 02 is provided in the middle thereof.

[0067] The air damper 123 is rotatably installed on the side of the air damper retainer 122 facing the mounting plate member 11. An elastic member is installed between the air damper 123 and the air damper retainer 122 to provide a pulling force for the air damper 123 to rotate towards the door opening 1221. When the high-temperature protective cover tube 02 extends into the furnace wall 001, it is necessary to push the air damper 123 towards the mounting plate member 11. When the high-temperature protective cover tube 02 retracts and disengages from the closed cover cylinder 12, the air damper 123 is no longer subject to the thrust force, and then it can rotate towards the door opening 1221 under the elastic force of the elastic member and block the door opening 1221 to prevent the heat in the furnace from overflowing and play a protective role.

[0068] In one embodiment, as Figure 2 shown, a cooling pipeline 112 is provided in the mounting plate member 11, and a cooling gas interface 113 is provided at one end of the cooling pipeline 112.

[0069] The mounting plate member 11 is closely attached to the furnace wall for installation. Since the temperature of the furnace wall is relatively high, it may affect the structural strength of the mounting plate member 11. In the embodiment of the present application, a cooling pipeline 112 is provided in the mounting plate member 11. The path of the cooling pipeline 112 can be wound in the mounting plate member 11 and is specifically adjusted according to the shape of the mounting plate member 11. A cooling gas interface 113 is provided at one end of the cooling pipeline 112 for introducing cooling gas, and the other end is an opening. The cooling gas is introduced from the cooling gas interface 113 and flows along the cooling pipeline 112 until it flows out of the opening, thereby cooling the mounting plate member 11.

[0070] In one embodiment, a pressure detection member (not shown in the figure) is installed in the protection space 21, and a temperature detection member (not shown in the figure) is installed on the infrared image acquisition unit 03.

[0071] In the embodiment of the present application, a pressure detection member is installed in the protection space 21 to detect the pressure of the cooling gas in the protection space, and a temperature detection member is installed on the infrared image acquisition unit 03 to detect the real-time temperature. When the pressure in the protection space is too low or the temperature of the infrared image acquisition unit 03 is too high, it indicates that the infrared image acquisition unit 03 may have a risk of damage. At this time, it is necessary to control the high-temperature protective cover tube 02 to retract as soon as possible to protect the infrared image acquisition unit 03.

[0072] According to needs, the above technical solutions can be combined to achieve the best technical effect.

[0073] Heating furnace furnace tube temperature detection system:

[0074] The heating furnace furnace tube temperature detection system in the embodiment of the present application, as Figure 3 、 4 shown, includes a gas path control device 05, an explosion-proof electric control device 06, and at least one heating furnace furnace tube temperature detection device as described in any one of the foregoing embodiments;

[0075] The gas path control device 05 includes a gas tank 51, and the gas tank 51 is connected to the protective gas interface 22 through a first pipeline 52;

[0076] The explosion-proof electric control device 06 is communicatively connected to the infrared image acquisition unit 03.

[0077] Specifically, the gas path control device 05 is used to provide cooling gas for the heating furnace furnace tube temperature detection device. The gas tank 51 is used to store compressed cooling gas. The gas tank 51 is connected to the protective gas interface 22 through the first pipeline 52, so as to send the cooling gas into the protective space 21. Preferably, the first pipeline 52 can be made of stainless steel pipe to adapt to the high-temperature environment.

[0078] The explosion-proof electric control device 06 is composed of an explosion-proof box body with electric control devices such as a controller installed inside. The controller is communicatively connected to the image acquisition unit 03 and is used to obtain the image signal of the image acquisition unit 03. The controller can also perform data processing on the image signal. The explosion-proof electric control device 06 can also be provided with a temperature display device to display the real-time temperature collected by the image acquisition unit 03.

[0079] In one embodiment, as Figure 3 、 4 shown, a cooling pipeline 112 is provided in the mounting bracket 01. One end of the cooling pipeline 112 is provided with a cooling gas interface 113, and the gas tank 51 is connected to the cooling gas interface through a second pipeline 53;

[0080] A switching valve 54 is installed between the gas tank 51 and the first pipeline 52 and the second pipeline 53;

[0081] The gas path control device 05 is also provided with an explosion-proof pressure switch 55, and the explosion-proof pressure switch 55 is connected to the first pipeline 52 and the second pipeline 53.

[0082] As described in the foregoing embodiment, a cooling pipeline 112 is provided in the mounting bracket 01 for passing cooling gas to cool the mounting bracket 01. The gas tank 51 is connected to the cooling gas interface through the second pipeline 53 to pass cooling gas into the cooling pipeline 112. Similarly, the second pipeline 53 can be made of stainless steel pipe to adapt to the high-temperature environment.

[0083] Since the cooling gas for the protective space 21 and the cooling pipeline 112 generally needs to be passed through simultaneously, a switching valve 54 is connected to the outlet of the gas tank 51, and the other end of the switching valve 54 is respectively connected to the first pipeline 52 and the second pipeline 53, so that the switching valve 54 can synchronously control the on-off of the cooling gas flow in the protective space 21 and the cooling pipeline 112.

[0084] In addition, the gas path control device 05 is also provided with an explosion-proof pressure switch 55 connected to the first pipeline 52 and the second pipeline 53 at the same time to protect the first pipeline 52 and the second pipeline 53 in a high-temperature and harsh environment.

[0085] Preferably, since the gas stored in the gas tank 51 is high-pressure gas, in order to avoid excessive air pressure, pressure reducing valves 59 can be installed in the first pipeline 52, the second pipeline 53, and between the explosion-proof pressure switch 55 and the first pipeline 52 and the second pipeline 53 to reduce the air pressure of the cooling gas.

[0086] In one embodiment, as Figure 3 , 4 shown, the transmission unit 04 is a telescopic cylinder, and the telescopic cylinder is provided with an exit interface 41 and a propulsion interface 42;

[0087] The exit interface 41 is connected to the gas tank 51 through a third pipeline 56, and the propulsion interface 42 is connected to the gas tank 51 through a fourth pipeline 58. Explosion-proof solenoid valves 57 are installed between the third pipeline 56 and the gas tank 51 and between the fourth pipeline 58 and the gas tank 51. The explosion-proof solenoid valve 57 is communicatively connected to the explosion-proof electric control device 06.

[0088] In the embodiment of the present application, the transmission unit 04 adopts a pneumatic telescopic cylinder. In a high-temperature environment, its reliability is stronger than that of electric equipment, and it can also be controlled by the gas path control device 05.

[0089] The telescopic cylinder is provided with an exit interface 41 and a propulsion interface 42 respectively leading to an exit air flow and a propulsion air flow to control the expansion and contraction of the cylinder. The exit interface 41 and the propulsion interface 42 are respectively connected to the gas tank 51 through a third pipeline 56 and a fourth pipeline 58, and explosion-proof solenoid valves 57 are arranged between the third pipeline 56 and the fourth pipeline 58 and the gas tank 51. The explosion-proof electric control device 06 is communicatively connected to the explosion-proof solenoid valve 57. The explosion-proof electric control device 06 controls the on-off of the third pipeline 56 and the fourth pipeline 58 through the explosion-proof solenoid valve 57, so as to realize the expansion and contraction control of the telescopic cylinder. An exit button and a propulsion button can be arranged in the explosion-proof electric control device 06 and electrically connected to the controller. The staff can manually control the expansion and contraction of the telescopic cylinder through the exit button and the propulsion button.

[0090] In one embodiment, a pressure detection component is installed in the protection space 21, and a temperature detection component is installed on the infrared image acquisition unit 03. The pressure detection component and the temperature detection component are both communicatively connected to the explosion-proof electric control device 06.

[0091] The pressure detection component and the temperature detection component are communicatively connected to the controller of the explosion-proof electric control device 06 to obtain the air pressure in the protection space 21 and the temperature of the infrared image acquisition unit 03 in real time. When the air pressure or temperature is in an abnormal range, the staff can be notified in time through an alarm device or the high-temperature protective cover tube 02 can be automatically controlled to retract. A pressure indicator light and a temperature indicator light can be installed in the explosion-proof electric control device 06 and electrically connected to the controller. When the air pressure or temperature is in an abnormal range, the pressure indicator light and the temperature indicator light are controlled to light up to give an alarm.

[0092] In one of the embodiments, as Figure 5 shown, the heating furnace tube temperature detection system further includes a communication device 07 and a remote control terminal 08, and the remote control terminal 08 is communicatively connected to the explosion-proof electric control device 06 through the communication device 07.

[0093] The communication device 07 can adopt communication devices such as Ethernet, mobile network, local area network, etc. The infrared images and temperature data collected by the explosion-proof electric control device 06 are uploaded to the remote control terminal 08 through the communication device 07 so that the staff can analyze the tube temperature. The remote control terminal 08 can also remotely control the explosion-proof electric control device 06 through the communication device 07 to realize the remote control of the heating furnace tube temperature detection device.

[0094] According to the needs, the above technical solutions can be combined to achieve the best technical effect.

[0095] The above are only the principles and preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, the embodiments obtained by appropriately combining the technical solutions separately disclosed in different embodiments are also included in the technical scope of the present invention. Based on the principle of the present application, several other variations can also be made, which should also be regarded as the protection scope of the present application.

Claims

1. A temperature detection device for a heating furnace tube, characterized in that, Comprising: An installation bracket for being installed on the furnace wall of a heating furnace; A high-temperature protective cover tube installed on the installation bracket and for passing through the furnace wall, a protective space is provided inside the high-temperature protective cover tube, and a protective gas interface is provided at one end of the protective space away from the heating furnace; An infrared image acquisition unit installed at one end of the protective space extending into the heating furnace; A transmission unit installed on the installation bracket and connected to the high-temperature protective cover tube to drive the high-temperature protective cover tube to expand and contract relative to the furnace wall.

2. The temperature detection device for the heating furnace tubes according to claim 1, characterized in that The installation bracket includes: An installation plate member for being fixedly installed on the furnace wall, and a through hole for passing through the high-temperature protective cover tube is provided on the installation plate member; A closed cover cylinder installed on the installation plate member and located around the through hole, after the high-temperature protective cover tube extends into the closed cover cylinder, it extends into the heating furnace through the through hole.

3. The temperature detection device for the heating furnace tubes according to claim 2, wherein The closed cover cylinder includes a cylinder body, a damper retaining ring and a damper; One end of the cylinder body covers around the through hole, and the other end is installed with the damper retaining ring, and a door opening is provided on the damper retaining ring; The damper is rotatably installed inside the damper retaining ring through an elastic member, when the high-temperature protective cover tube retracts to disengage from the closed cover cylinder, the damper plugs the door opening under the action of the elastic member.

4. The temperature detection device for the heating furnace tubes according to claim 2, characterized in that, A cooling pipeline is arranged inside the installation plate member, and a cooling gas interface is provided at one end of the cooling pipeline.

5. The temperature detection device for the heating furnace tubes according to claim 1, characterized in that, A pressure detection member is installed inside the protective space, and a temperature detection member is installed on the infrared image acquisition unit.

6. A heating furnace furnace tube temperature detection system, characterized in that, Comprising an air circuit control device, an explosion-proof electric control device, and at least one heating furnace furnace tube temperature detection device as described in any one of claims 1-5; The air circuit control device includes an air tank, and the air tank is connected to the protective gas interface through a first pipeline; The explosion-proof electric control device is communicatively connected to the infrared image acquisition unit.

7. The heating furnace tube temperature detection system according to claim 6, characterized in that, A cooling pipeline is provided in the installation bracket, a cooling gas interface is provided at one end of the cooling pipeline, and the air tank is connected to the cooling gas interface through a second pipeline; A switching valve is installed between the air tank and the first pipeline and the second pipeline; The air circuit control device is further provided with an explosion-proof pressure switch, and the explosion-proof pressure switch is connected to the first pipeline and the second pipeline.

8. The heating furnace tube temperature detection system according to claim 6, characterized in that, The transmission unit is a telescopic cylinder, and the telescopic cylinder is provided with a retraction interface and a propulsion interface; The retraction interface is connected to the air tank through a fourth pipeline, the propulsion interface is connected to the air tank through a fifth pipeline, explosion-proof electromagnetic valves are installed between the fourth pipeline and the air tank and between the fifth pipeline and the air tank, and the explosion-proof electromagnetic valves are communicatively connected to the explosion-proof electric control device.

9. The heating furnace tube temperature detection system according to claim 6, characterized in that, A pressure detection member is installed inside the protective space, a temperature detection member is installed on the infrared image acquisition unit, and both the pressure detection member and the temperature detection member are communicatively connected to the explosion-proof electric control device.

10. The heating furnace tube temperature detection system according to any one of claims 6-9, characterized in that, It further includes a communication device and a remote control terminal, and the remote control terminal is communicatively connected to the explosion-proof electric control device through the communication device.

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