Flame detector support capable of adjusting probe direction, boiler furnace and boiler

By designing an adjustable flame detector bracket, the problem of misjudgment caused by fixed flame detector probes was solved, enabling flexible adjustment during burner operation under varying loads, ensuring the accuracy of signal output and equipment stability, and avoiding economic losses.

CN121498084APending Publication Date: 2026-02-10HARBIN BOILER CO LTD
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Patent Information

Application Number
CN202511865714.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-11
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

The existing flame detector probes are fixedly installed with the burner. When the flame parameters change during the operation of the burner under varying loads but the flame is not extinguished, the probes are outside the detection range, leading to misjudgment and shutdown, resulting in economic losses.

Method used

Design a flame detector bracket with adjustable probe direction. The angle of the flame detector probe can be adjusted through a transmission structure and a drive handle to ensure that the probe is always within the range of flame changes. The bracket includes a combination of bracket body, transmission structure, drive plate and driven plate.

Benefits of technology

It avoids false alarms by flame detectors, ensures the accuracy of signal output, prevents unit downtime, reduces economic losses, simplifies operation, and is suitable for high-temperature and dusty environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of flame detector supporting equipment, in particular to a flame detector support capable of adjusting the direction of a probe, a boiler furnace and a boiler. The support comprises a support body, the support body is arranged on a combustor or a sealing box panel, and a flame detector body is arranged on the support body; the transmission structure is arranged on the support body, a driving disc and a driven disc are arranged at the two ends of the transmission structure, a flame detector probe is arranged on the driven disc and connected with the flame detector body through a metal hose, a driving handle is arranged on the driving disc, and the angle of the driving disc is adjusted through the driving handle. And the transmission structure drives the driven disc to act so as to adjust the angle of the flame detector probe. The direction of the probe of the flame detector is adjusted in time, it is guaranteed that the detection range of the probe changes along with changes of flames, stronger signal output is guaranteed, misjudgment of the flame detector is avoided, and the problems of economic losses and the like caused by shutdown of a unit are also avoided.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flame detector support equipment, in particular to a flame detector support capable of adjusting the direction of a probe, a boiler furnace and a boiler. BACKGROUND

[0002] The flame detector is an important device in the furnace safety supervision system (FSSS) of a boiler, which functions to detect the combustion condition of a flame in real time according to the combustion characteristics of the flame, and give a signal in a certain way once the flame burning state does not meet the normal condition or is extinguished, so as to ensure that the fuel supply is stopped when the boiler is extinguished. It mainly consists of a probe and a signal processor.

[0003] In order to ensure that the fuel supply is cut off in time when the burner is extinguished and to avoid the occurrence of an explosion accident, a flame detection device must be installed on the burner. The probe axis of a general flame detector is fixedly installed at a certain angle with the burner axis, that is, the probe can only view the flame in a fixed range. Since the burner needs to operate at variable loads, the change of fuel or air distribution will cause the change of parameters such as the shape, brightness and distance from the nozzle of the flame of the burner, but the burner is not extinguished, only the flame exceeds the viewing range of the fixed flame detector probe, at this time, the flame detection output extinguishes the signal, the burner stops operating, causing misjudgment, even leading to the shutdown of the unit, causing economic losses. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the problem in the prior art that the burner needs to operate at variable loads, the change of fuel or air distribution will cause the change of parameters such as the shape, brightness and distance from the nozzle of the flame of the burner, but the burner is not extinguished, only the flame exceeds the viewing range of the fixed flame detector probe, at this time, the flame detection output extinguishes the signal, the burner stops operating, causing misjudgment, even leading to the shutdown of the unit, causing economic losses, so as to provide a flame detector support capable of adjusting the direction of a probe, a boiler furnace and a boiler.

[0005] In order to solve the above technical problem, the present application provides a flame detector support capable of adjusting the direction of a probe, comprising: a support body, which is arranged on a burner or a sealed box panel, and a flame detector body is arranged on the support body; a transmission structure, which is arranged on the support body, and a driving disc and a driven disc are arranged at both ends of the transmission structure, a flame detector probe is arranged on the driven disc, the flame detector probe is connected with the flame detector body through a metal hose, a driving handle is arranged on the driving disc, the angle of the driving disc is adjusted through the driving handle, the transmission structure drives the driven disc to move, so as to adjust the angle of the flame detector probe.

[0006] Furthermore, the transmission structure includes four transmission rods, each with a transmission rod ball head at both ends, and the four transmission rods are respectively connected to the driving disc and the driven disc through the transmission rod ball heads.

[0007] Furthermore, the drive disc includes a drive disc socket and four transmission rod first sockets, the four transmission rod first sockets are spaced apart on the drive disc socket, and the drive disc socket is connected to the drive disc ball head on the bracket body, the transmission rod first socket is connected to the transmission rod ball head, and the drive handle is located on the drive disc socket.

[0008] Furthermore, the driven disc includes a driven disc sleeve and four transmission rod second ball sockets, the four transmission rod second ball sockets are spaced apart on the driven disc sleeve, and the driven disc sleeve is connected to the flame detector probe, and the transmission rod second ball sockets are connected to the transmission rod ball head.

[0009] Furthermore, the bracket body includes a support rod and a guide plate, a support plate, and an installation guide tube. The support rod is located within the transmission structure, the drive disc ball head is located at one end of the support rod, the guide plate is located at the other end of the support rod and is connected to multiple transmission rods, the support plate is located on the support rod, the installation guide tube is located on the support plate, and the flame detector body is inserted into the installation guide tube.

[0010] Furthermore, there are two support plates, which are symmetrically arranged on the support rod.

[0011] Furthermore, the bracket body also includes positive and negative flanges, which are disposed on the mounting conduit. The flame detector body is provided with a mounting flange, which is connected to the positive and negative flanges.

[0012] Furthermore, the guide plate and burner or sealing box panel are provided with an oblong hole, which is adapted to pass through the transmission rod.

[0013] The present invention also provides a boiler furnace, including the flame detector bracket with adjustable probe direction.

[0014] The present invention also provides a boiler, including the aforementioned boiler furnace.

[0015] The technical solution of this invention has the following advantages: 1. The present invention provides an adjustable probe direction flame detector bracket, comprising: a bracket body, the bracket body being disposed on a burner or sealing box panel, and a flame detector body being disposed on the bracket body; a transmission structure, disposed on the bracket body, and a drive plate and a driven plate being disposed at both ends of the transmission structure, a flame detector probe being disposed on the driven plate, the flame detector probe being connected to the flame detector body via a metal flexible tube, a drive handle being disposed on the drive plate, and the angle of the drive plate being adjusted by adjusting the drive handle, thereby causing the transmission structure to drive the driven plate to move, so as to adjust the angle of the flame detector probe.

[0016] By mounting the bracket body on the burner or sealing box panel, thus securing the bracket body to its position, the installation stability of the bracket body is ensured. Simultaneously, a flame detector body is mounted on the bracket body, which incorporates a transmission structure. This transmission structure has a drive plate and a driven plate at each end. The flame detector probe is mounted on the driven plate, and a flexible metal tube connects the flame detector body to the driven plate. The transmission structure connects the drive plate and the driven plate. When the angle of the flame detector probe needs adjustment, adjusting the angle of the drive handle moves the drive plate, which in turn moves the transmission structure, thereby adjusting the angle of the driven plate and ultimately the flame detector probe mounted on it.

[0017] This adjustable flame detector bracket allows for remote adjustment of the flame detector probe's direction during burner variable load operation, preventing operators from working in high-temperature and dusty environments. Simultaneously, it enables timely adjustment of the flame detector probe's direction, ensuring the probe's detection range changes with the flame, guaranteeing stronger signal output, preventing misjudgments by the flame detector, and avoiding unit downtime that could result in economic losses.

[0018] This adjustable flame detector bracket is primarily designed to address issues arising from the fixed installation of the flame detector probe relative to the burner, resulting in a fixed detection range. This can lead to problems such as flame parameters changing without extinguishing the flame, even when the flame exceeds the probe's detection range, causing the flame detector to output an extinguishing signal, resulting in burner shutdown, misjudgment, and even unit shutdown, causing economic losses. The bracket allows for remote adjustment of the flame detector probe's direction while the burner is running, avoiding the need for operators to work in high-temperature and dusty environments. Furthermore, the use of spherical hinges to connect components ensures flexible operation of the entire mechanism. The holes for the transmission rod on the guide plate and burner or sealing box panel are designed as oblong holes to prevent jamming. In practical use, the probe direction can be adjusted arbitrarily within a certain cone angle range simply by operating the drive handle, making operation easy.

[0019] 2. The flame detector bracket with adjustable probe direction provided by the present invention includes a drive disc comprising a drive disc socket and four transmission rod first sockets. The four transmission rod first sockets are spaced apart on the drive disc socket, and the drive disc sockets are connected to the drive disc ball head on the bracket body. The first sockets of the transmission rods are connected to the ball head of the transmission rod. A drive handle is disposed on the drive disc socket. The drive disc ball head and the drive disc socket on the support rod form a spherical hinge, and the drive disc socket and the transmission rod ball head form a spherical hinge. By manipulating the drive handle, the drive disc is tilted in any direction around the center of the drive disc ball head. Through the movement of the four transmission rods, the plane of the driven disc is always parallel to the plane of the drive disc, thereby causing the flame detector probe axis to deflect, and thus adjusting the angle of the driven disc.

[0020] The summary section is provided to present the chosen concepts in a simplified form, which will be further described in the detailed description below. The summary section is not intended to identify essential or necessary features of this disclosure, nor is it intended to limit the scope of this disclosure. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 2 A schematic diagram of the downward-facing structure of the flame detector probe of the adjustable probe direction flame detector bracket provided by the present invention; Figure 3 A schematic diagram of the flame detector probe facing upwards in the flame detector bracket with adjustable probe direction provided by the present invention; Figure 4 Appendix provided for the present invention Figure 1 A schematic diagram of the structure along direction A; Figure 5 A schematic diagram of the support body of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 6 A schematic diagram of the guide disk of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 7A schematic diagram showing the position of the waist-shaped hole in the flame detector bracket with adjustable probe direction provided by the present invention; Figure 8 A side view of the drive disk of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 9 A top view of the drive disc of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 10 A schematic diagram of the transmission rod of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 11 A side view of the driven disk of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 12 A top view of the driven disk of the flame detector bracket with adjustable probe direction provided by the present invention; Figure 13 This is a schematic diagram of the structure of a flame detector with an adjustable probe direction flame detector bracket provided by the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Support body; 2. Drive disc; 3. Transmission structure; 4. Driven disc; 5. Flame detector; 6. Burner or sealing box panel; 1-1. Drive disc ball head; 1-2. Support rod; 1-3. Support plate; 1-4. Guide disc; 1-5. Mounting guide tube; 1-6. Front and back flanges; 2-1. Drive disc ball socket; 2-2. Transmission rod first ball socket; 2-3. Drive handle; 3-1. Transmission rod; 3-2. Transmission rod ball head; 4-1. Driven disc sleeve; 4-2. Transmission rod second ball socket; 5-1. Flame detector body; 5-2. Mounting flange; 5-3. Metal flexible hose; 5-4. Flame detector probe; 6-1. Waist-shaped hole. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0025] The preferred embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0026] Please see Figures 1 to 13As shown, the present invention provides a flame detector bracket with adjustable probe direction, comprising: a bracket body 1, the bracket body 1 being disposed on a burner or sealing box panel 6, and a flame detector body 5-1 being disposed on the bracket body 1; a transmission structure 3, disposed on the bracket body 1, and a drive disk 2 and a driven disk 4 being disposed at both ends of the transmission structure 3, the driven disk 4 being disposed on a flame detector probe 5-4, the flame detector probe 5-4 being connected to the flame detector body 5-1 via a metal flexible tube 5-3, the drive disk 2 being disposed on a drive handle 2-3, the angle of the drive disk 2 being adjusted by the drive handle 2-3, thereby causing the transmission structure 3 to drive the driven disk 4 to move, thereby adjusting the angle of the flame detector probe 5-4.

[0027] By mounting the bracket body 1 on the burner or sealing box panel 6, the bracket body 1 is fixed in place, ensuring its stable installation position. A flame detector body 5-1 is mounted on the bracket body 1, and a transmission structure 3 is installed on it. The transmission structure 3 has a drive plate 2 and a driven plate 4 at its two ends. The flame detector probe 5-4 is mounted on the driven plate 4, and a flexible metal hose 5-3 connects the flame detector body 5-1 to the driven plate 4. The transmission structure 3 connects the drive plate 2 and the driven plate 4. When the angle of the flame detector probe 5-4 needs adjustment, the angle of the drive handle 2-3 is adjusted, causing the drive plate 2 to move relative to the drive plate. This, in turn, causes the transmission structure 3 to move accordingly, thereby adjusting the angle of the driven plate 4 and thus the angle of the flame detector probe 5-4 mounted on the driven plate 4.

[0028] This adjustable flame detector bracket allows for remote adjustment of the direction of the flame detector probes 5-4 during burner operation under varying loads, preventing operators from working in high-temperature and dusty environments. Simultaneously, it enables timely adjustment of the flame detector probes 5-4, ensuring that the probe's detection range changes with the flame, guaranteeing stronger signal output, preventing misjudgments by the flame detector 5, and avoiding unit downtime and economic losses.

[0029] The flame detector 5 consists of a flame detector body 5-1, a flame detector probe 5-4, and a metal flexible tube 5-3.

[0030] In some optional embodiments, the transmission structure 3 includes four transmission rods 3-1-1, each with a transmission rod ball head 3-2 at both ends. The four transmission rods 3-1 are connected to the drive disc 2 and the driven disc 4 respectively through the transmission rod ball heads 3-2.

[0031] The four transmission rods 3-1 are connected to the drive disc 2 and the driven disc 4 through the transmission rod ball joints 3-2 at both ends.

[0032] Among them, the two transmission rods 3-1 arranged on the left and right form a horizontal parallelogram with the driving disk 2 and the driven disk 4, and the transmission rods 3-1 arranged on the top and bottom form a vertical parallelogram with the driving disk 2 and the driven disk 4.

[0033] In actual use, the drive handle 2-3 is operated outside the burner or sealing box to change the angle of the interior angle of the horizontal or vertical parallelogram, thereby arbitrarily adjusting the direction of the flame detector probe 5-4 within a certain cone angle range.

[0034] In some optional embodiments, the drive disc 2 includes a drive disc socket 2-1 and four transmission rod first sockets 2-2. The four transmission rod first sockets 2-2 are spaced apart on the drive disc socket 2-1, and the drive disc socket 2-1 is connected to the drive disc ball head 1-1 on the bracket body 1. The transmission rod first sockets 2-2 are connected to the transmission rod ball head 3-2. The drive handle 2-3 is located on the drive disc socket 2-1.

[0035] The drive disc ball socket 2-1 and the four transmission rod first ball sockets 2-2 are configured to connect the drive disc ball socket 2-1 to the drive disc ball head 1-1, and the transmission rod first ball sockets 2-2 to the transmission rod ball head 3-2. Specifically, adjacent transmission rod first ball sockets 2-2 are spaced 90° apart on the drive disc ball socket 2-1.

[0036] The drive disc ball head 1-1 and the drive disc ball socket 2-1 on the support rod 1-2 form a spherical hinge. The drive disc ball socket 2-1 and the transmission rod ball head 3-2 form a spherical hinge. By manipulating the drive handle 2-3, the drive disc 2 is tilted in any direction around the center of the drive disc ball head 1-1. Through the action of the four transmission rods 3-1, the plane of the driven disc 4 is always parallel to the plane of the drive disc 2, thereby causing the axis of the flame detector probe 5-4 to deflect, and thus adjusting the angle of the driven disc 4.

[0037] The driven disk 4 includes a driven disk sleeve 4-1 and four transmission rod second ball sockets 4-2. The four transmission rod second ball sockets 4-2 are spaced apart on the driven disk sleeve 4-1, and the driven disk sleeve 4-1 is connected to the flame detector probe 5-4. The transmission rod second ball sockets 4-2 are connected to the transmission rod ball head 3-2.

[0038] The second ball socket 4-2 of the transmission rod and the ball head 3-2 of the transmission rod form a spherical hinge. When the transmission rod 3-1 moves, that is, when the horizontal parallelogram or the vertical parallelogram changes its angle, the driven plate 4 also adjusts its angle accordingly, that is, it is parallel to the plane where the drive plate 2 is located, thereby realizing the adjustment of the angle of the flame detector probe 5-4.

[0039] Among them, the second ball sockets 4-2 of two adjacent transmission rods are set at a 90° interval on the driven disc sleeve 4-1.

[0040] In some optional embodiments, the bracket body 1 includes a support rod 1-2, a guide plate 1-4, a support plate 1-3, and an installation conduit 1-5. The support rod 1-2 is disposed within the transmission structure 3. The drive disc ball head 1-1 is disposed at one end of the support rod 1-2. The guide plate 1-4 is disposed at the other end of the support rod 1-2 and is connected to a plurality of transmission rods 3-1. The support plate 1-3 is disposed on the support rod 1-2. The installation conduit 1-5 is disposed on the support plate 1-3, and the flame detector body 5-1 is inserted into the installation conduit 1-5.

[0041] By setting a guide plate 1-4 on the support rod 1-2, the guide plate 1-4 can limit the four transmission rods 3-1 and prevent the spatial position of the four transmission rods 3-1 from moving; at the same time, a drive plate ball head 1-1 is set at the end of the support rod 1-2, which is inserted into the drive plate ball socket 2-1, thereby realizing the connection between the support rod 1-2 and the drive plate 2.

[0042] The flame detector body 5-1 is inserted into the installation conduit 1-5, thereby connecting the flame detector body 5-1 to the bracket body 1 through the installation conduit 1-5, ensuring the installation stability of the flame detector body 5-1.

[0043] In this embodiment, the support plate 1-3 is used to connect the support rod 1-2 and the installation conduit 1-5, and there are two support plates 1-3, which are symmetrically arranged on the support rod 1-2, thereby increasing the stability of the installation conduit 1-5.

[0044] The bracket body 1 further includes positive and negative flanges 1-6, which are mounted on the mounting conduit 1-5. The flame detector body 5-1 is provided with a mounting flange 5-2, which is connected to the positive and negative flanges 1-6. Bolts can be used to connect the mounting flange 5-2 and the positive and negative flanges 1-6, so that the bracket body 1 and the transmission structure 3 are connected as a single unit.

[0045] In some alternative embodiments, the guide disc 1-4 and the burner or sealing box panel 6 are provided with an oblong hole 6-1, which is adapted to pass through the drive rod 3-1.

[0046] The design of the waist-shaped hole 6-1 can effectively prevent the transmission rod 3-1 from jamming.

[0047] The present invention also provides a boiler furnace, including the flame detector bracket with adjustable probe direction.

[0048] The present invention also provides a boiler, including the aforementioned boiler furnace.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A flame detector bracket with adjustable probe direction, characterized in that, include: The bracket body (1) is mounted on the burner or sealing box panel (6), and a flame detector body (5-1) is mounted on the bracket body (1). The transmission structure (3) is located on the support body (1), and a drive plate (2) and a driven plate (4) are provided at both ends of the transmission structure (3). The driven plate (4) is provided with a flame detector probe (5-4). The flame detector probe (5-4) is connected to the flame detector body (5-1) through a metal hose (5-3). The drive plate (2) is provided with a drive handle (2-3). The angle of the drive plate (2) is adjusted by the drive handle (2-3), so that the transmission structure (3) drives the driven plate (4) to move, thereby adjusting the angle of the flame detector probe (5-4).

2. The flame detector bracket with adjustable probe direction according to claim 1, characterized in that, The transmission structure (3) includes four transmission rods (3-1), and transmission rod ball heads (3-2) are provided at both ends of the transmission rods (3-1). The four transmission rods (3-1) are connected to the drive disc (2) and the driven disc (4) respectively through the transmission rod ball heads (3-2).

3. The flame detector bracket with adjustable probe direction according to claim 2, characterized in that, The drive disc (2) includes a drive disc socket (2-1) and four transmission rod first sockets (2-2). The four transmission rod first sockets (2-2) are spaced apart on the drive disc socket (2-1), and the drive disc socket (2-1) is connected to the drive disc ball head (1-1) on the bracket body (1). The transmission rod first socket (2-2) is connected to the transmission rod ball head (3-2). The drive handle (2-3) is located on the drive disc socket (2-1).

4. The flame detector bracket with adjustable probe direction according to claim 3, characterized in that, The driven disc (4) includes a driven disc sleeve (4-1) and four transmission rod second ball sockets (4-2). The four transmission rod second ball sockets (4-2) are spaced apart on the driven disc sleeve (4-1), and the driven disc sleeve (4-1) is connected to the flame detector probe (5-4). The transmission rod second ball sockets (4-2) are connected to the transmission rod ball head (3-2).

5. A flame detector bracket with adjustable probe direction according to claim 1, characterized in that, The bracket body (1) includes a support rod (1-2), a guide plate (1-4), a support plate (1-3), and an installation guide (1-5). The support rod (1-2) is located inside the transmission structure (3). The drive disc ball head (1-1) is located at one end of the support rod (1-2). The guide plate (1-4) is located at the other end of the support rod (1-2) and is connected to multiple transmission rods (3-1). The support plate (1-3) is located on the support rod (1-2). The installation guide (1-5) is located on the support plate (1-3). The flame detector body (5-1) is inserted into the installation guide (1-5).

6. A flame detector bracket with adjustable probe direction according to claim 5, characterized in that, There are two support plates (1-3), which are symmetrically arranged on the support rod (1-2).

7. A flame detector bracket with adjustable probe direction according to claim 5, characterized in that, The bracket body (1) also includes a front and back flange (1-6), which is located on the mounting conduit (1-5). The flame detector body (5-1) is provided with a mounting flange (5-2), which is connected to the front and back flange (1-6).

8. A flame detector bracket with adjustable probe direction according to claim 5, characterized in that, The guide plate (1-4) and the burner or sealing box panel (6) are provided with a waist-shaped hole (6-1), which is suitable for passing through the drive rod (3-1).

9. A boiler furnace, characterized in that, The flame detector bracket with adjustable probe orientation as described in any one of claims 1-8.

10. A boiler, characterized in that, Includes the boiler furnace as described in claim 9.