A heating furnace flame detection probe cooling device

Abstract

This application discloses a cooling device for a flame detector probe in a heating furnace, relating to the field of flame detector probe cooling. By rotating an L-shaped rotating plate and a rotating rod, the rotating rod engages with an insert rod. Then, a threaded pin is rotated, causing it to pass through a through hole on the outer surface of the insert rod and engage with a blind hole in the inner wall of a rectangular groove on the outer surface of the rotating rod. This locks the rotating rod and L-shaped rotating plate together with the threaded pin, allowing the cooling component to be installed on the outer surface of the detection component via an installation assembly. Installation is convenient and quick. The internal air passage of the insert sleeve and the internal partition of the fixing ring guide the flow of cooling gas within the insert sleeve, achieving a cooling effect on the detection component. Furthermore, the engagement of a protrusion with the arc-shaped groove on the inner side of the fixing ring limits the rotation of the insert sleeve, allowing the observation window to be cleaned via a cleaning strip. The locking mechanism, consisting of an insert block and a compression spring, prevents damage to the detection component due to prolonged exposure to high temperatures.

Description

Technical Field

[0001] This utility model relates to the field of flame detector probe cooling technology, and in particular to a cooling device for a flame detector probe in a heating furnace. Background Technology

[0002] A heating furnace is a key industrial device that heats materials by burning fuel. The core of its safe operation lies in the real-time monitoring of the combustion status. This requires the use of a flame detection head to detect the presence of a burner flame. Once an accidental flameout is detected, it will immediately cut off the fuel supply, thereby fundamentally preventing the accumulation of unburned fuel in the furnace and the potential for deflagration accidents, thus ensuring the safe operation of the heating furnace.

[0003] The working principle of flame detection heads is based on detecting specific physical characteristics produced during combustion. Ultraviolet (UV) detection heads utilize ultraviolet radiation from the flame, detecting its presence through a dedicated UV tube, making them highly sensitive to gas flames. Infrared and visible light types detect the flicker frequency and intensity of the flame in the infrared and visible light bands, respectively.

[0004] Existing flame detection heads require insertion into a heating furnace during use. The furnace typically has a small area designated to accommodate the flame detection head, facilitating flame detection. However, this insertion method results in the head being subjected to high temperatures. Since existing detection heads lack cooling devices, they are subjected to prolonged high temperatures, affecting their normal operation and ultimately causing damage. Utility Model Content

[0005] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides a cooling device for a heating furnace flame detector probe.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a cooling device for a heating furnace flame detector probe, comprising: Detection components; The mounting assembly is disposed on the outer surface of the detection component. The mounting assembly includes a mounting plate inserted into the outer surface of the detection component. Two L-shaped rotating plates are hinged to one side of the mounting plate, and two rotating rods are hinged to both sides of the mounting plate. Insert rods are installed on both sides of the short arm portion of the L-shaped rotating plates, and a threaded pin is provided inside the end of the rotating rod away from the mounting plate. A cooling component is provided on the side of the mounting plate away from the L-shaped rotating plate. The cooling component includes a fixing ring fixedly installed on the side of the mounting plate away from the L-shaped rotating plate. A plug sleeve is inserted into the inside of the fixing ring. An air passage is opened inside the plug sleeve. A compression spring is installed on the outer surface of the plug sleeve. A plug block is installed at the end of the compression spring away from the plug sleeve.

[0007] As a preferred embodiment of the heating furnace fire detector cooling device of this utility model, the detection component includes a head tube and a controller. One end of the head tube is fixedly connected to the outer surface of the controller. The mounting plate has a through hole that matches the head tube. The mounting plate is inserted into the head tube through the through hole. The L-shaped rotating plate is located on the side of the mounting plate near the controller.

[0008] As a preferred embodiment of the heating furnace fire detector cooling device of this utility model, a rectangular groove is provided on the side of the rotating rod away from the mounting plate and close to the insertion rod.

[0009] As a preferred embodiment of the heating furnace fire detector cooling device of the present invention, the inner wall of the rectangular groove on the outer surface of the rotating rod away from the mounting plate is provided with a threaded hole that mates with a threaded pin, the threaded pin is engaged and connected inside the threaded hole, the inner wall of the rectangular groove on the outer surface of the rotating rod near the mounting plate is provided with a blind hole, and the inside of the insertion rod has a through hole with a diameter larger than that of the threaded hole.

[0010] As a preferred embodiment of the heating furnace flame detector cooling device of the present invention, the outer surface of the head tube is provided with an observation window, the outer surface of the plug sleeve is provided with a rectangular opening that matches the observation window on the outer surface of the head tube, the inner wall of the rectangular opening is provided with an air hole, and the inner wall of the rectangular opening on the outer surface of the plug sleeve is provided with a cleaning strip.

[0011] As a preferred embodiment of the cooling device for the fire detector probe of the heating furnace described in this utility model, a partition is installed inside the fixed ring, an air inlet is opened on one side of the fixed ring, and an air outlet is opened on the outer surface of the fixed ring away from the air inlet.

[0012] As a preferred embodiment of the heating furnace flame detector cooling device of the present invention, the inner side of the fixing ring is provided with an arc-shaped groove, and the outer surface of the plug sleeve is provided with a protrusion, which slides in the arc-shaped groove.

[0013] (III) Beneficial Effects This utility model provides a cooling device for a flame detector probe in a heating furnace. It has the following beneficial effects: 1. By rotating the L-shaped rotating plate and the rotating rod, the rotating rod is driven to cooperate with the insertion rod. Then, the threaded pin is rotated so that the threaded pin passes through the through hole on the outer surface of the insertion rod and then cooperates with the blind hole on the inner wall of the rectangular groove on the outer surface of the rotating rod. Finally, the rotating rod and the L-shaped rotating plate are locked by the threaded pin. Then, the cooling component is installed on the outer surface of the detection component by the installation component. The installation is convenient and quick.

[0014] 2. By setting up the internal air passage of the plug sleeve and the internal baffle of the fixing ring, the cooling gas is guided to flow inside the plug sleeve, thereby achieving the effect of cooling the detection component. Furthermore, the plug sleeve rotation is limited by the cooperation between the protrusion and the arc groove on the inner side of the fixing ring, so that the observation window can be cleaned by the cleaning strip. The locking is achieved by setting up the plug block and the compression spring to prevent the detection component from being damaged by long-term high temperature. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is an exploded structural diagram of the entire utility model.

[0018] Figure 3 This is an exploded structural diagram of the mounting component of this utility model.

[0019] Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 This is an exploded structural diagram of the cooling component of this utility model.

[0021] Figure 6 This is a utility model Figure 5 Enlarged view of point B in the middle.

[0022] Figure 7 This is a schematic diagram of the structure of the plug-in sleeve of this utility model.

[0023] In the diagram, 1. Detection component; 2. Mounting assembly; 201. L-shaped rotating plate; 202. Mounting plate; 203. Rotating rod; 204. Insert rod; 205. Threaded pin; 3. Cooling assembly; 301. Insert sleeve; 302. Fixing ring; 303. Partition plate; 304. Air inlet; 305. Insert block; 306. Compression spring; 307. Air passage; 308. Air hole; 309. Cleaning strip. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1 Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention, which provides a cooling device for a heating furnace flame detector probe, comprising: Detection component 1; Mounting component 2 is disposed on the outer surface of detection component 1. Mounting component 2 includes mounting plate 202 inserted into the outer surface of detection component 1. Two L-shaped rotating plates 201 are hinged to one side of mounting plate 202, and two rotating rods 203 are hinged to both sides of mounting plate 202. Insert rods 204 are installed on both sides of the short arm of L-shaped rotating plate 201. A threaded pin 205 is provided inside the end of rotating rod 203 away from mounting plate 202.

[0026] like Figure 2 , Figure 3 as well as Figure 4 In this embodiment, the detection component 1 includes a head insertion tube and a controller. One end of the head insertion tube is fixedly connected to the outer surface of the controller. The mounting plate 202 has a through hole that mates with the head insertion tube. The mounting plate 202 is inserted into the head insertion tube through the through hole. The L-shaped rotating plate 201 is disposed on the side of the mounting plate 202 close to the controller. The connection relationship and working principle between the detection component 1 and other components are all prior art and are common knowledge known to those skilled in the art. They will not be described in detail here.

[0027] like Figure 2 , Figure 3 as well as Figure 4 In this embodiment, a rectangular groove is provided on the side of the rotating rod 203 away from the mounting plate 202 and close to the insertion rod 204. By setting the rectangular groove, after the insertion rods 204 on both sides of the L-shaped rotating plate 201 are inserted into the rectangular groove, the L-shaped rotating plate 201 can be limited to prevent it from rotating outward and opening, thereby ensuring that the L-shaped rotating plate 201 can cooperate well with the controller.

[0028] like Figure 2 , Figure 3 as well as Figure 4 In this embodiment, the inner wall of the rectangular groove on the outer surface of the rotating rod 203 away from the mounting plate 202 is provided with a threaded hole that mates with the threaded pin 205. The threaded pin 205 is engaged with the inside of the threaded hole. The inner wall of the rectangular groove on the outer surface of the rotating rod 203 near the mounting plate 202 is provided with a blind hole. The inside of the insertion rod 204 has a through hole with a diameter larger than that of the threaded hole. After the threaded pin 205 mates with the threaded hole, the end of the threaded pin 205 near the mounting plate 202 can pass through the through hole and mate with the blind hole, thereby locking the L-shaped rotating plate 201 and the rotating rod 203, thereby locking the mounting plate 202 and the controller.

[0029] Furthermore, the two L-shaped rotating plates 201 are rotated outwards. After the mounting plate 202 engages with the controller, the two L-shaped rotating plates 201 are reset. The short arm of the L-shaped rotating plate 201 then limits the movement. The rotating rods 203 on both sides are rotated, causing the rectangular groove on the outer surface of the rotating rod 203 to engage with the insertion rod 204, so that the insertion rod 204 is inserted into the rectangular groove. Then, the threaded pin 205 engages with the threaded hole on the outer surface of the rotating rod 203, thereby rotating the threaded pin 205 so that it passes through the through hole on the outer surface of the insertion rod 204 and engages with the blind hole on the inner wall of the rectangular groove on the outer surface of the rotating rod 203. Finally, the rotating rod 203 and the L-shaped rotating plate 201 are locked by the threaded pin 205, thus enabling the cooling component 3 to be installed on the outer surface of the detection component by the mounting component 2.

[0030] Example 2 Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 This is the second embodiment of the present invention, which is based on the previous embodiment. The cooling component 3 is disposed on the side of the mounting plate 202 away from the L-shaped rotating plate 201. The cooling component 3 includes a fixing ring 302 fixedly installed on the side of the mounting plate 202 away from the L-shaped rotating plate 201. An insertion sleeve 301 is inserted into the inside of the fixing ring 302. An air passage 307 is opened inside the insertion sleeve 301. A compression spring 306 is installed on the outer surface of the insertion sleeve 301. An insertion block 305 is installed at the end of the compression spring 306 away from the insertion sleeve 301. A circular hole is opened on the outer surface of the insertion sleeve 301. The compression spring 306 is disposed inside the circular hole. The insertion block 305 can be completely retracted into the circular hole by squeezing the compression spring 306.

[0031] like Figure 2 , Figure 5 as well as Figure 6In this embodiment, an observation window is provided on the outer surface of the head cannula, and a rectangular opening is provided on the outer surface of the insertion sleeve 301 to cooperate with the observation window on the outer surface of the head cannula. An air hole 308 is installed on the inner wall of the rectangular opening, and a cleaning strip 309 is installed on the inner wall of the rectangular opening on the outer surface of the insertion sleeve 301. Through the setting of the air hole 308, airflow can be guided to blow towards the observation window on the outer surface of the head cannula. An insertion hole is provided on the outer surface of the fixing ring 302 to cooperate with the insertion block 305. Through the cooperation of the insertion block 305 and the insertion hole, the insertion sleeve 301 is locked, so that the rectangular opening on the outer surface of the insertion sleeve 301 can cooperate with the observation window on the outer surface of the head cannula, and the insertion sleeve 301 avoids obstructing the observation window.

[0032] like Figure 2 , Figure 5 , Figure 6 as well as Figure 7 In this embodiment, a partition 303 is installed inside the fixing ring 302. An air inlet 304 is provided on one side of the fixing ring 302, and an air outlet is provided on the outer surface of the fixing ring 302 away from the air inlet 304. The air passage 307 inside the plug sleeve 301 is divided into two parts. With the cooperation of the partition 303, the cooling gas sent in through the air inlet 304 can enter the plug sleeve 301 through the air passage 307 on one side. After circulating inside the plug sleeve 301, the cooling gas is sent out through the air passage 307 on the other side, and then sent out through the air outlet on the outer surface of the fixing ring 302. Due to the setting of the air passage 307, the thickness of the inner side of the plug sleeve 301 is relatively thin, so that when the gas flows in the air passage 307, heat exchange is convenient, thereby achieving the effect of cooling and heat dissipation.

[0033] like Figure 5 , Figure 6 as well as Figure 7 In this embodiment, the inner side of the fixing ring 302 is provided with an arc-shaped groove, and the outer surface of the insertion sleeve 301 is provided with a protrusion. The protrusion slides in the arc-shaped groove, and the central angle of the arc-shaped groove is 90 degrees. Through the cooperation of the protrusion and the arc-shaped groove, the rotation angle of the insertion sleeve 301 is limited to 90 degrees, and the rotation of the insertion sleeve 301 can drive the cleaning strip 309 to clean the observation window on the outer surface of the head insertion tube.

[0034] Furthermore, the air source enters the fixed ring 302 through the air inlet 304. Through the cooperation of the plug sleeve 301 and the partition 303, the internal space of the fixed ring 302 is divided into two parts. This allows the gas entering the fixed ring 302 to enter the plug sleeve 301 through the air passage 307 on one side, and then be sent out from the air passage 307 on the other side. Finally, it is sent out from the air outlet on the other side of the outer surface of the fixed ring 302. This allows the cooling gas to flow inside the plug sleeve 301, thereby cooling the detection component 1. The plug sleeve 301 can also be rotated to facilitate cleaning of the observation window. The locking mechanism is achieved by the plug block 305 and the compression spring 306.

[0035] Working principle: When using the flame detection head to detect the flame inside the heating furnace, the mounting plate 202 is inserted into the head tube through the internal through hole. During the insertion process, the two L-shaped rotating plates 201 are rotated outwards. After the mounting plate 202 is engaged with the controller, the two L-shaped rotating plates 201 are reset, and then limited by the short arm of the L-shaped rotating plate 201. Then, the rotating rods 203 on both sides are rotated, causing the rectangular groove on the outer surface of the rotating rod 203 to engage with the insertion rod 204, so that the insertion rod 204 is inserted into the rectangular groove. Then, the threaded pin 205 is engaged with the outer surface of the rotating rod 203. The threaded hole on the surface engages with the threaded pin 205, causing it to pass through the through hole on the outer surface of the insert rod 204 and engage with the blind hole in the inner wall of the rectangular groove on the outer surface of the rotating rod 203. This locks the rotating rod 203 and the L-shaped rotating plate 201 together via the threaded pin 205. This allows the cooling component 3 to be installed on the outer surface of the detection component via the mounting assembly 2. The detection component 1 then drives the cooling component to the designated position on the outer surface of the heating furnace. After use, the air inlet 304 needs to be connected to an external air source, allowing the air source to enter the fixing ring 3 through the air inlet 304. Inside the 02, the cooperation between the insertion sleeve 301 and the partition 303 divides the internal space of the fixing ring 302 into two parts. This allows gas entering the fixing ring 302 to enter the insertion sleeve 301 through one side's air passage 307, then exit through the other side's air passage 307, and finally exit from the outlet on the other side of the outer surface of the fixing ring 302. This allows cooling gas to flow within the insertion sleeve 301, thus cooling the detection component 1. Furthermore, during use, when cleaning the observation window on the outer surface of the head insertion tube in the detection component 1 is required, the insertion block 305 is pressed. The insertion block 305 is retracted, causing the insertion hole on the outer surface of the fixing ring 302 to separate from the insertion block 305. This allows the insertion sleeve 301 to rotate, thereby causing the cleaning strip 309 on the inner wall of the rectangular opening on the outer surface of the insertion sleeve 301 to wipe and clean the observation window on the outer surface of the head insertion tube. During the rotation, the protrusion and the arc groove on the inner side of the fixing ring 302 are engaged to achieve the limit. After cleaning, the rotation is reset, and the spring force of the compression spring 306 drives the insertion block 305 to engage with the opening on the outer surface of the fixing ring 302, ultimately completing the cooling and cleaning of the flame detection head of the heating furnace.

[0036] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A cooling device for a flame detector probe in a heating furnace, characterized in that, include: Detection component (1); Mounting assembly (2) is disposed on the outer surface of the detection component (1). The mounting assembly (2) includes a mounting plate (202) inserted into the outer surface of the detection component (1). Two L-shaped rotating plates (201) are hinged to one side of the mounting plate (202). Two rotating rods (203) are hinged to both sides of the mounting plate (202). Insert rods (204) are installed on both sides of the short arm of the L-shaped rotating plate (201). A threaded pin (205) is provided inside the end of the rotating rod (203) away from the mounting plate (202). Cooling component (3) is disposed on the side of mounting plate (202) away from L-shaped rotating plate (201). Cooling component (3) includes a fixing ring (302) fixedly installed on the side of mounting plate (202) away from L-shaped rotating plate (201). A plug sleeve (301) is inserted into the inside of the fixing ring (302). An air passage (307) is opened inside the plug sleeve (301). A compression spring (306) is installed on the outer surface of the plug sleeve (301). A plug block (305) is installed at the end of the compression spring (306) away from the plug sleeve (301).

2. The cooling device for a heating furnace flame detector probe according to claim 1, characterized in that: The detection component (1) includes a head tube and a controller. One end of the head tube is fixedly connected to the outer surface of the controller. The mounting plate (202) has a through hole that matches the head tube. The mounting plate (202) is inserted into the head tube through the through hole. The L-shaped rotating plate (201) is located on the side of the mounting plate (202) near the controller.

3. The cooling device for a heating furnace flame detector probe according to claim 2, characterized in that: A rectangular groove is provided on the side of the rotating rod (203) away from the mounting plate (202) and close to the insertion rod (204).

4. The cooling device for a heating furnace flame detector probe according to claim 3, characterized in that: The inner wall of the rectangular groove on the outer surface of the rotating rod (203) away from the mounting plate (202) is provided with a threaded hole that mates with the threaded pin (205). The threaded pin (205) is engaged inside the threaded hole. The inner wall of the rectangular groove on the outer surface of the rotating rod (203) near the mounting plate (202) is provided with a blind hole. The inside of the insert rod (204) has a through hole with a diameter larger than that of the threaded hole.

5. A cooling device for a heating furnace flame detector probe according to claim 4, characterized in that: An observation window is provided on the outer surface of the head cannula, and a rectangular opening is provided on the outer surface of the insertion sleeve (301) to match the observation window on the outer surface of the head cannula. An air hole (308) is installed on the inner wall of the rectangular opening, and a cleaning strip (309) is installed on the inner wall of the rectangular opening on the outer surface of the insertion sleeve (301).

6. The cooling device for a heating furnace flame detector probe according to claim 5, characterized in that: The fixed ring (302) has a partition (303) installed inside. An air inlet (304) is provided on one side of the fixed ring (302), and an air outlet is provided on the outer surface of the fixed ring (302) away from the air inlet (304).

7. A cooling device for a heating furnace flame detector probe according to claim 6, characterized in that: The inner side of the fixing ring (302) is provided with an arc-shaped groove, and the outer surface of the plug sleeve (301) is provided with a protrusion, which slides in the arc-shaped groove.

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