Flame monitoring device in heating furnace
By adopting a fixed connection structure between a support plate and a connecting plate in the flame monitoring device inside the heating furnace, and using a motor-driven support screw to adjust the monitoring position, combined with a high-temperature resistant transparent protective frame and a condenser tube system, the problems of position adjustment and high-temperature protection of the existing device are solved, achieving flexible monitoring and equipment protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
Existing flame monitoring devices in heating furnaces are difficult to monitor flexibly at different locations and lack effective high-temperature protection, making the monitoring equipment susceptible to damage.
The system employs a fixed connection structure between a support plate and a connecting plate, combined with a motor-driven support screw to adjust the monitoring position. The monitor is protected by a high-temperature resistant transparent protective frame and a condenser pipe system, thus achieving position adjustment and cooling.
It improves the flexibility of monitoring and the high-temperature protection capability of the equipment, extends the service life of the monitor, and ensures the stability and reliability of the monitoring device.
Smart Images

Figure CN224080777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating furnace technology, and in particular to a flame monitoring device inside a heating furnace. Background Technology
[0002] Heating furnaces are widely used in many industrial fields such as petroleum, chemical, and metallurgy. The combustion state of their flames directly affects the thermal efficiency, product quality, and safe production of the heating furnace. Therefore, it is necessary to use flame monitoring devices to monitor the flame inside the heating furnace. However, existing flame monitoring devices for heating furnaces have at least the following drawbacks: 1. Existing flame monitoring devices for heating furnaces are not easy to monitor the flame at different locations inside the heating furnace; 2. Existing flame monitoring devices for heating furnaces are not easy to protect against high temperatures. Therefore, we have introduced a new flame monitoring device for heating furnaces. Utility Model Content
[0003] The main objective of this invention is to provide a flame monitoring device inside a heating furnace, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A flame monitoring device for a heating furnace includes two fixed plates. A limit rod is fixedly connected to the left side of one of the two fixed plates facing each other. A motor is fixedly connected to the right rear end of the front fixed plate. A support screw is fixedly connected to the output end of the motor. A connecting ring is sleeved on the outer surface of the support screw, and the rear end of the support screw is movably connected to the rear fixed plate via a connecting bearing. A support plate is fixedly connected to the left side of the outer surface of the connecting ring. A connecting plate is fixedly connected to the left end of the support plate. A monitoring component is fixedly connected to the left end of the connecting plate, and the connecting plate is sleeved with the limit rod.
[0006] The monitoring component includes a support plate, a connecting pipe is inserted through the upper left part of the support plate, a limit ring is sleeved on the upper part of the outer surface of the connecting pipe, and a high-temperature resistant transparent protective frame is sleeved on the lower part of the outer surface of the support plate. The support plate and the connecting plate are fixedly connected.
[0007] Preferably, the support plate includes a circular plate, the lower end of which is fixedly connected to a first frame, a fixing ring is fixedly sleeved on the middle of the outer surface of the first frame, a monitor body is fixedly connected to the inner frame wall of the first frame, a condenser pipe is sleeved on the upper part of the outer surface of the monitor body, and the circular plate is sleeved with the connecting pipe.
[0008] By adopting the above technical solution: the monitoring component can monitor the flame inside the heating furnace, the circular plate supports the first frame, the first frame can locate the position of the monitor body, and the condenser pipe and connecting pipe can supply cooling to the first frame to protect the monitor body from cooling.
[0009] Preferably, the high-temperature resistant transparent protective frame includes a transparent frame body, the upper part of the inner frame wall of the transparent frame body has a screw groove, a rubber pad is fixedly connected to the upper end of the transparent frame body, and the transparent frame body is sleeved with a support plate.
[0010] By adopting the above technical solution: the monitor body is protected by a high-temperature resistant transparent protective frame; the sealing effect during the connection between the high-temperature resistant transparent protective frame and the support plate is enhanced by a rubber pad; and the connection between the high-temperature resistant transparent protective frame and the support plate is enhanced by a screw groove.
[0011] Preferably, the rubber pad is in contact with the lower end of the fixing ring, and the transparent frame is not in contact with the condenser tube.
[0012] Preferably, the screw groove is threaded into the first frame body.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. By fixing the support plate and the connecting plate together, connecting the connecting plate and the limiting rod together, and connecting the connecting ring and the support screw together, the position of the connecting ring and the connecting plate on the connecting ring can be adjusted by driving the support screw to rotate through the motor, thereby adjusting the monitoring position of the monitoring component and improving flexibility.
[0015] 2. By setting up monitoring components, the high-temperature resistant transparent protective frame is threadedly connected to the support plate to protect the monitor body. The connecting pipe and the condenser pipe work together to condense and cool the body inside the first frame, thereby cooling and protecting the monitor body from damage due to excessive temperature. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a flame monitoring device inside a heating furnace according to the present invention.
[0017] Figure 2 This is a schematic diagram of the overall structure of the monitoring component of a flame monitoring device for a heating furnace according to this utility model;
[0018] Figure 3 This is a schematic diagram of the overall structure of the support plate of the flame monitoring device inside a heating furnace according to the present invention;
[0019] Figure 4This is a schematic diagram of the overall structure of the high-temperature resistant transparent protective frame of the flame monitoring device inside a heating furnace according to this utility model.
[0020] In the diagram: 1. Fixing plate; 2. Motor; 3. Support screw; 4. Connecting ring; 5. Limiting rod; 6. Support plate; 7. Connecting plate; 8. Monitoring component; 81. Support plate; 82. Connecting pipe; 83. Limiting ring; 84. High-temperature resistant transparent protective frame; 811. Round plate; 812. Frame No. 1; 813. Fixing ring; 814. Monitor body; 815. Condenser pipe; 841. Transparent frame; 842. Screw groove; 843. Rubber pad. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Please see Figure 1-4 This utility model provides a technical solution:
[0025] A flame monitoring device for a heating furnace includes two fixed plates 1. The left side of the opposite ends of the two fixed plates 1 are fixedly connected to a limit rod 5. The right side of the rear end of the front fixed plate 1 is fixedly connected to a motor 2. The output end of the motor 2 is fixedly connected to a support screw 3. A connecting ring 4 is sleeved on the outer surface of the support screw 3. The rear end of the support screw 3 is movably connected to the rear fixed plate 1 through a connecting bearing. A support plate 6 is fixedly connected to the left side of the outer surface of the connecting ring 4. A connecting plate 7 is fixedly connected to the left end of the support plate 6. A monitoring component 8 is fixedly connected to the left end of the connecting plate 7. The connecting plate 7 is sleeved with the limit rod 5.
[0026] In this embodiment, the monitoring component 8 includes a support plate 81, a connecting pipe 82 is inserted and connected to the upper left part of the support plate 81, a limit ring 83 is sleeved on the upper part of the outer surface of the connecting pipe 82, a high temperature resistant transparent protective frame 84 is sleeved on the lower part of the outer surface of the support plate 81, and the support plate 81 is fixedly connected to the connecting plate 7; the support plate 81 includes a circular plate 811, a first frame 812 is fixedly connected to the lower end of the circular plate 811, a fixing ring 813 is fixedly sleeved on the middle part of the outer surface of the first frame 812, a monitor body 814 is fixedly connected to the inner frame wall of the first frame 812, a condenser pipe 815 is sleeved on the upper part of the outer surface of the monitor body 814, and the circular plate 811 is sleeved with the connecting pipe 82.
[0027] The above scheme allows for the monitoring of the flame inside the heating furnace via the monitoring component 8. The connecting pipe 82 is fixedly connected to the condenser pipe 815, facilitating the external condensing equipment to condense and cool the condenser pipe 815. The first frame 812 supports and positions the monitor body 814, providing cooling protection and improving stability.
[0028] In this embodiment, the high-temperature resistant transparent protective frame 84 includes a transparent frame body 841. A screw groove 842 is opened on the upper part of the inner frame wall of the transparent frame body 841. A rubber pad 843 is fixedly connected to the upper end of the transparent frame body 841. The transparent frame body 841 is sleeved with the support plate 81. The rubber pad 843 is in contact with the lower end of the fixing ring 813. The transparent frame body 841 is not in contact with the condenser tube 815. The screw groove 842 is threadedly sleeved with the first frame body 812.
[0029] The above solution involves threading the high-temperature resistant transparent protective frame 84 onto the support plate 81 to position the high-temperature resistant transparent protective frame 84. The rubber pad 843 contacts the lower end of the fixing ring 813, which enhances the sealing effect during the connection between the high-temperature resistant transparent protective frame 84 and the support plate 81. The high-temperature resistant transparent protective frame 84 is used to protect the monitor body 814.
[0030] It should be noted that this utility model is a flame monitoring device inside a heating furnace. During use, the device achieves the adjustment of the monitoring position through a series of mechanical connections and transmission structures. First, the support plate 81 is fixedly connected to the connecting plate 7, forming a stable connection structure. The connecting plate 7 is sleeved with the limiting rod 5, which plays a guiding role, keeping the connecting plate 7 stable during movement and preventing displacement. The connecting ring 4 is sleeved with the support screw 3. When the motor 2 drives the support screw 3 to rotate, due to the transmission action of the thread, the connecting ring 4 will move along the axial direction of the support screw 3. The movement of the connecting ring 4 will drive the connected connecting plate 7 to move, thereby driving the support plate 81 and the monitoring component 8 installed on the support plate 81 to move, thus realizing the adjustment of the monitoring position of the monitoring component 8, improving the flexibility of monitoring, and allowing the monitoring angle and range to be adjusted according to actual needs. In order to protect the monitor body 814 from the harsh environment inside the heating furnace, the device adopts a high-temperature resistant transparent protective frame 84. By threading the high-temperature resistant transparent protective frame 84 to the support plate 81, a protective frame is formed around the monitor body 814. A closed protective space is provided. The high-temperature resistant transparent protective frame 84 can not only block the direct corrosion of the high temperature, dust, and flames inside the heating furnace to the monitor body 814, but also ensure that the monitor body 814 can clearly monitor the flame situation inside the furnace through the protective frame without affecting the monitoring effect, effectively protecting the normal operation of the monitor body 814. The high temperature environment inside the heating furnace may damage the monitor body 814. Therefore, a cooling system is designed for this purpose. The connecting pipe 82 and the condenser pipe 815 are connected and fixedly connected, and the connecting pipe 82 is connected to the... The device is connected to an external condensing unit. When the external condensing unit is working, it delivers low-temperature coolant to the condensing pipe 815 through the connecting pipe 82. The coolant flows in the condensing pipe 815, absorbing heat from the first frame 812, thereby condensing and cooling the first frame 812. The heat inside the first frame 812 is carried away by the coolant, achieving cooling protection for the monitor body 814 installed inside, preventing the monitor body 814 from being damaged due to excessive temperature, extending the service life of the monitor body 814, and ensuring the stability and reliability of the monitoring device.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for monitoring the flame in a furnace, comprising a fixed plate (1), characterized in that: Two fixing plates (1) are arranged, opposite ends of the two fixing plates (1) are fixedly connected with a limiting rod (5) at the left part in common, the front fixing plate (1) is fixedly connected with a motor (2) at the right part of the rear end, the output end of the motor (2) is fixedly connected with a supporting screw rod (3), the supporting screw rod (3) is sleeved with a connecting ring (4) on the outer surface, and the rear end of the supporting screw rod (3) is movably connected with the rear fixing plate (1) through a connecting bearing, the left part of the outer surface of the connecting ring (4) is fixedly connected with a supporting plate (6), the left end of the supporting plate (6) is fixedly connected with a connecting plate (7), the left end of the connecting plate (7) is fixedly connected with a monitoring assembly (8), and the connecting plate (7) is sleeved with the limiting rod (5). The monitoring assembly (8) comprises a supporting plate (81), the left part of the upper end of the supporting plate (81) is connected with a connecting pipe (82), the upper part of the outer surface of the connecting pipe (82) is sleeved with a limiting ring (83), the lower part of the outer surface of the supporting plate (81) is sleeved with a high-temperature-resistant transparent protective frame (84), and the supporting plate (81) is fixedly connected with the connecting plate (7).
2. A flame monitoring device for a furnace as claimed in claim 1, wherein: The supporting plate (81) comprises a circular plate (811), the lower end of the circular plate (811) is fixedly connected with a first frame body (812), the middle part of the outer surface of the first frame body (812) is fixedly sleeved with a fixing ring (813), the inner frame wall of the first frame body (812) is fixedly connected with a monitor body (814), the upper part of the outer surface of the monitor body (814) is sleeved with a condenser pipe (815), and the circular plate (811) is sleeved with the connecting pipe (82).
3. A flame monitoring device for a furnace as defined in claim 1, wherein: The high-temperature-resistant transparent protective frame (84) comprises a transparent frame body (841), a screw groove (842) is formed in the upper part of the inner frame wall of the transparent frame body (841), the upper end of the transparent frame body (841) is fixedly connected with a rubber pad (843), and the transparent frame body (841) is sleeved with the supporting plate (81).
4. A flame monitoring device for a furnace as claimed in claim 3, wherein: The rubber pad (843) is in contact with the lower end of the fixing ring (813), and the transparent frame body (841) is not in contact with the condenser pipe (815).
5. A flame monitoring device for a furnace as defined in claim 3, wherein: The screw groove (842) is threadedly sleeved with the first frame body (812).