Furnace tube leakage detection device
By designing a furnace tube leakage detection device including a fixed shell, inner cavity, connecting cavity and detection mechanism, the medium promotes the movement of the adjustment block under the action of pressure, the problem of difficulty in detecting furnace tube leakage in the prior art is solved, and the problem of the furnace tube leakage is realized Accurate judgment of leakage conditions and improved safety of boiler operation.
Patent Information
- Application Number
- CN202420807434.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-18
AI Technical Summary
Existing dry quenching waste heat boilers are prone to furnace pipe leakage during operation, and it is difficult for the existing technology to effectively detect leakage.
A furnace pipe leakage detection device is designed, including a fixed shell, inner cavity, connecting cavity, connecting tube, and detection mechanism. The adjustment block is driven to move under the pressure through the medium, and the leakage situation is judged based on the displacement state of the adjustment block.
Accurate detection of furnace pipe leakage conditions is achieved, and the safety and efficiency of boiler operation are improved.
Smart Images
Figure CN222231989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke dry quenching waste heat boilers, in particular to a furnace tube leakage detection device. Background Art
[0002] The CDQ waste heat boiler is an important equipment in the CDQ process. Its main function is to convert the waste heat of the circulating gas in the CDQ system into the internal energy of water, thereby reducing the coke temperature in the CDQ furnace and generating steam. The CDQ boiler has a high utilization rate of the waste heat from the coking process of the coke oven, and effectively improves the quality of coke, which has a good effect of energy saving and consumption reduction. However, in the actual operation of the CDQ boiler, due to pipe overheating, pipe wear and high-temperature corrosion, the furnace tube leakage phenomenon will occur, and the furnace tube leakage needs to be detected. Utility Model Content
[0003] The utility model aims to solve the shortcomings in the prior art that furnace tubes may leak due to overheating, wear or corrosion of the tubes and that the furnace tube leakage needs to be detected, and proposes a furnace tube leakage detection device.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A furnace tube leakage detection device is designed, comprising a fixed shell, an inner cavity is opened inside the fixed shell, connecting cavities are opened inside the two end surfaces of the fixed shell, the connecting cavity is connected with the inner cavity, a connecting pipe is threadedly connected inside the connecting cavity, a fixed flange is fixedly installed on one side of the fixed shell, the interior of the fixed flange is connected with the inner cavity, and a detection mechanism for detection is threadedly connected inside the fixed flange.
[0006] Preferably, the detection mechanism includes a mounting tube, a clamping tube is fixedly installed on one end of the mounting tube, the clamping tube is connected to the internal thread of the fixed flange, the other end of the mounting tube is internally threadedly connected to a sealing block, a spring is fixedly installed on the surface of the sealing block, and an adjustment block is fixedly installed on the end of the spring away from the sealing block.
[0007] Preferably, a connecting rod is fixedly mounted on the surface of the sealing block, a sleeve block is sleeved on the outer side of the end of the connecting rod away from the sealing block, the end of the sleeve block is fixedly connected to the adjusting block, and the connecting rod and the sleeve block are located on the inner side of the spring.
[0008] Preferably, a second sealing gasket is fixedly mounted on the inner surface of the fixed flange, and the end of the clamping tube contacts the surface of the second sealing gasket.
[0009] Preferably, a first sealing gasket is fixedly mounted on the inner surface of the connecting cavity, and the end of the connecting pipe contacts the surface of the first sealing gasket.
[0010] The utility model provides a furnace tube leakage detection device, which has the beneficial effect that during operation, the end of the connecting pipe away from the fixed shell is connected to the furnace tube, the device is located between the furnace tubes, and the medium passes through the device when flowing inside the furnace tube. The furnace tube can transport the medium into the inner cavity through the connecting pipe, and the medium in the inner cavity can enter the installation tube through the clamping tube. The medium will push the adjustment block to move under the action of pressure, and the leakage of the furnace tube is detected according to the scale pointed to by the adjustment block. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of a transverse cross-sectional structure of a furnace tube leakage detection device proposed by the utility model;
[0012] Figure 2 This is a longitudinal cross-sectional structural schematic diagram of a furnace tube leakage detection device proposed by the utility model;
[0013] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle.
[0014] In the figure: 1 fixed shell, 2 inner cavity, 3 connecting cavity, 4 connecting pipe, 5 first sealing gasket, 6 fixed flange, 7 second sealing gasket, 8 clamping tube, 9 mounting cylinder, 10 sealing block, 11 connecting rod, 12 sleeve block, 13 adjusting block, 14 spring. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0016] Example 1
[0017] Reference Figure 1-3 A furnace tube leakage detection device includes a fixed shell 1, an inner cavity 2 is provided inside the fixed shell 1, connecting cavities 3 are provided inside the two end surfaces of the fixed shell 1, the connecting cavity 3 is connected to the inner cavity 2, a connecting pipe 4 is threadedly connected inside the connecting cavity 3, a first sealing gasket 5 is fixedly installed on the inner surface of the connecting cavity 3, the end of the connecting pipe 4 is in conflict with the surface of the first sealing gasket 5, and the first sealing gasket 5 is used to improve the sealing effect of the connection between the connecting pipe 4 and the inside of the fixed shell 1. The connecting pipe 4 is used to connect with the furnace tube, and two connecting pipes 4 are connected between the furnace tubes. When the medium flows inside the furnace tube, the medium will enter the connecting cavity 3 through one end of the furnace tube and one connecting pipe 4, and then the medium will enter the other end of the furnace tube through the other connecting pipe 4. The connecting pipe 4 is easy to disassemble from the fixed shell 1, and the connecting pipe 4 of a suitable length can be selected according to needs, so that the boiler pipeline can be better connected to the device.
[0018] A fixed flange 6 is fixedly installed on one side of the fixed shell 1, and the interior of the fixed flange 6 is connected to the interior of the inner cavity 2. The internal thread of the fixed flange 6 is connected with a detection mechanism for detection, and the detection mechanism is used to detect the pressure inside the furnace tube. The detection mechanism includes a mounting tube 9, which is a transparent material structure, and its side is evenly engraved with scales, which is convenient for observing the displacement state of the adjustment block 13. A clamping tube 8 is fixedly installed at one end of the mounting tube 9, and the clamping tube 8 is connected to the internal thread of the fixed flange 6. The clamping tube 8 and the fixed flange 6 are convenient for disassembly and assembly. A second sealing gasket 7 is fixedly installed on the inner surface of the fixed flange 6, and the end of the clamping tube 8 is in conflict with the surface of the second sealing gasket 7. The second sealing gasket 7 can improve the sealing effect of the connection between the fixed flange 6 and the clamping tube 8. A sealing block 10 is connected to the internal thread of the other end of the mounting tube 9, and a vent hole is opened inside the sealing block 10, and the vent hole plays a role in pressure relief. A spring 14 is fixedly installed on the surface of the sealing block 10, and an adjusting block 13 is fixedly installed at the end of the spring 14 away from the sealing block 10. When the adjusting block 13 is not subjected to external force, it remains stationary under the elastic force of the spring 14. When the boiler is started, when the medium inside the furnace tube enters the inner cavity 2, the medium will enter the installation tube 9 through the clamping tube 8, and the pressure inside the installation tube 9 will change. The adjusting block 13 will move under the pressure, and the pressure inside the furnace tube will be judged according to the displacement state of the adjusting block 13, so as to judge whether there is leakage inside the furnace tube. In addition, according to those skilled in the art, the pressure of the medium flowing inside the intact and leak-free furnace tube is known, so the position of the adjusting block 13 under the pressure is certain and will not change. The position of the adjusting block 13 at this time needs to be marked on the scale of the installation tube 9. When the non-leaking furnace tube is detected, the adjusting block 13 will stay at the position of the scale mark, so that it can be shown that the furnace tube is not leaking. If the position of the adjusting block 13 deviates from the marked position, it indicates that the furnace tube is leaking.
[0019] A connecting rod 11 is also fixedly mounted on the surface of the sealing block 10. A sleeve block 12 is sleeved on the outer side of the end of the connecting rod 11 away from the sealing block 10. The end of the sleeve block 12 is fixedly connected to the adjustment block 13. The connecting rod 11 and the sleeve block 12 are located on the inner side of the spring 14. The length between the connecting rod 11 and the sleeve block 12 can be changed. When the sealing block 10 and the adjustment block 13 need to be removed, the outward movement of the sealing block 10 will drive the connecting rod 11 to move, and the movement of the connecting rod 11 will drive the sleeve block 12 and the adjustment block 13 to move, so that the adjustment block 13 can be removed from the installation tube 9, and the removal is more stable. If there is no connecting rod 11 and the sleeve block 12, when the sealing block 10 is unscrewed, the sealing block 10 pulls the adjustment block 13 out of the installation tube 9 through the spring 14, which will easily cause damage to the spring 14. Under the connection of the connecting rod 11 and the sleeve block 12, the longest state in which the spring 14 can be stretched is much smaller than its limit length, so the spring 14 can be protected.
[0020] Working principle: During operation, the furnace tube leakage detection device connects the end of the connecting pipe 4 away from the fixed shell 1 to the furnace tube. The device is located between the furnace tubes. When the boiler is working, the medium is transported through the furnace tube. The medium will pass through the device when flowing inside the furnace tube. The furnace tube first transports the medium to the connecting pipe 4 on one side. The connecting pipe 4 transports the medium to the inner cavity 2. The medium in the inner cavity 2 can enter the installation tube 9 through the clamping tube 8. The medium will push the adjustment block 13 to move under the action of pressure. The medium will flow into the furnace tube through the connecting pipe 4 on the other side. According to the scale pointed by the adjustment block 13, the leakage of the furnace tube is detected.
[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A furnace tube leakage detection device, comprising a fixed shell (1), characterized in that: An inner cavity (2) is provided inside the fixed shell (1), connecting cavities (3) are provided inside the two end surfaces of the fixed shell (1), the connecting cavity (3) is connected to the inner cavity (2), a connecting pipe (4) is threadedly connected inside the connecting cavity (3), a fixing flange (6) is fixedly installed on one side of the fixed shell (1), the interior of the fixing flange (6) is connected to the interior of the inner cavity (2), and a detection mechanism for detection is threadedly connected inside the fixing flange (6).
2. The furnace tube leakage detection device according to claim 1, characterized in that: The detection mechanism comprises a mounting tube (9), one end of which is fixedly mounted with a clamping tube (8), the clamping tube (8) being connected to the internal thread of the fixed flange (6), the other end of which is internally connected with a sealing block (10), a spring (14) being fixedly mounted on the surface of the sealing block (10), and an adjusting block (13) being fixedly mounted on the end of the spring (14) away from the sealing block (10).
3. The furnace tube leakage detection device according to claim 2, characterized in that: A connecting rod (11) is also fixedly mounted on the surface of the sealing block (10); a sleeve block (12) is sleeved on the outer side of the end of the connecting rod (11) away from the sealing block (10); the end of the sleeve block (12) is fixedly connected to the adjustment block (13); and the connecting rod (11) and the sleeve block (12) are located on the inner side of the spring (14).
4. The furnace tube leakage detection device according to claim 3, characterized in that: A second sealing gasket (7) is fixedly mounted on the inner surface of the fixing flange (6), and the end of the clamping tube (8) contacts the surface of the second sealing gasket (7).
5. The furnace tube leakage detection device according to claim 1, characterized in that: A first sealing gasket (5) is fixedly mounted on the inner surface of the connecting cavity (3), and the end of the connecting pipe (4) contacts the surface of the first sealing gasket (5).