CN220323227U - Hand hole detection device for boiler furnace - Google Patents
Hand hole detection device for boiler furnace Download PDFInfo
- Publication number
- CN220323227U CN220323227U CN202321091537.4U CN202321091537U CN220323227U CN 220323227 U CN220323227 U CN 220323227U CN 202321091537 U CN202321091537 U CN 202321091537U CN 220323227 U CN220323227 U CN 220323227U
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- hand hole
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- boiler
- handhole
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- 238000001514 detection method Methods 0.000 title claims abstract description 118
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 239000010425 asbestos Substances 0.000 claims abstract description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a detection hand hole device of a boiler hearth, which is arranged on a manhole cover of a boiler and comprises a detection hand hole sleeve, a detection hand hole cover, a connecting device and a locking device, wherein the detection hand hole sleeve penetrates through the manhole cover and is arranged in the manhole cover; the detection handhole cover comprises a detection handhole cover body and a cavity, one side of the detection handhole cover body protrudes outwards to form a hollow cavity, a fireproof heat-insulating material is filled in the cavity, a concave groove is formed in the edge of the detection handhole cover body, asbestos is arranged in the concave groove to seal the device, the working efficiency of personnel is effectively improved, and the safety of personnel and boiler equipment is guaranteed.
Description
Technical Field
The utility model relates to a hand hole detection device, in particular to a hand hole detection device for a boiler furnace, and belongs to the technical field of gas-fired boiler equipment.
Background
The ferrous metallurgy companies are all provided with thermal power plants for combusting blast furnace gas, converter gas, coke oven gas and mixed gas, and are used for consuming combustible gas generated in the smelting process, so that the environment-friendly emission is ensured, and the produced power is obtained. The gas boiler arranged in the thermal power plant belongs to a major hazard source specified by the industry, the ignition start of the gas boiler is classified as one-level or special-level hazard operation by each company, and in the operation flow, the boiler furnace purging is required before the ignition start and the gas boiler is qualified, so that the ignition operation of the boiler is allowed. Whether the purging is qualified or not, most companies stipulate that the CO and the combustible gas are detected manually for the hearth and the flue to reach the qualified standard besides reaching a certain purging time (generally 30% of air quantity and more than 10 minutes), and the ignition can be started.
At the beginning of the original boiler design, all design a manhole door, partial combustion layer designs and has a fire observation hole, carries out CO to furnace and flue at every turn, and the manhole door of appointed position is opened to combustible gas's detection. The manhole door is designed for maintenance, is generally thick (the inner cavity is filled with fireproof heat-insulating materials), and is fixed by dozens of bolts for safety, so that the manhole door brings larger workload and operation risk to detection personnel, is more trouble-free, does not detect or detects less things, is extremely easy to cause explosion accidents caused by the fact that flammable mixed gas remains in a hearth or a flue, and threatens the life safety of the operation personnel and seriously damages boiler equipment.
Patent CN214277575U a power plant boiler gas detection system, including the gas collecting hole that is used for gathering boiler inner chamber gas, the gas collecting hole wears to establish the lateral wall of boiler and communicates with the inner chamber of boiler, still offer on the lateral wall of boiler and assist the gas collecting hole, the gas of boiler inner chamber can follow the gas collecting hole and assist the gas collecting hole and get into gas concentration analyzer through the pipeline, guaranteed gas concentration analyzer to gaseous collection, improve gas concentration analyzer and detect gaseous efficiency and accuracy, but this kind of detecting system is realized on the basis of changing original boiler package wall pipe and water wall pipe structure, the technology is complicated, complex operation, the heat preservation effect is poor.
At present, no manual detection hand hole is purposefully designed, so that on the basis of not changing the structures of the original boiler wall cladding pipe and the original boiler water wall pipe, research and development of a detection hole capable of overcoming the defects is a technical problem to be solved by a person skilled in the art.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the hand hole detection device for the boiler furnace, which effectively improves the working efficiency of personnel and ensures the safety of personnel and boiler equipment.
In order to solve the technical problems, the utility model provides a detection hand hole device for a boiler furnace, which is arranged on a manhole cover of a boiler and comprises a detection hand hole sleeve, a detection hand hole cover, a connecting device and a locking device, wherein the detection hand hole sleeve penetrates through the manhole cover and is arranged in the manhole cover;
the detection handhole cover comprises a detection handhole cover body and a cavity, one side of the detection handhole cover body protrudes outwards to form a hollow cavity, the cavity is filled with fire-resistant heat-insulating materials, a concave groove is formed in the edge of the detection handhole cover body, and asbestos sealing is arranged in the groove.
The technical scheme of the utility model is as follows:
further, in the above-mentioned boiler furnace detects hand hole device, connecting device includes fixing base, pivot and connecting rod, and the fixing base is the fixed plate that two symmetries set up, is equipped with a fixing base on the manhole cover, also is equipped with a fixing base in the corresponding position on the detection hand hole lid, and the one end of connecting rod is through pivot activity setting on the fixing base of manhole cover, and the other end is through pivot activity setting on the fixing base of detection hand hole lid.
The technical effect, connecting device is the connection that all has the pivot from top to bottom, and the mobility is good, and one end welded fastening is at the outer wall of manhole cover, and one end welding is on detecting the handhole cover body, realizes detecting the opening and shutting of handhole cover, does not need to lift off, uses and detects conveniently.
In the boiler furnace detection hand hole device, the locking device is two nuts and bolts, one side of the detection hand hole cover body is fixedly connected with one nut, the corresponding position on the manhole cover is also provided with one nut, and the bolts penetrate through the nuts on the detection hand hole cover body and fasten with the nuts on the manhole cover to realize locking and closing of the detection hand hole cover.
In the hand hole detection device for the boiler furnace, a handle is arranged on one side of the bolt.
The hand hole cover has the advantages that the hand hole cover is convenient to rotate, can be manually screwed or loosened to easily open and lock the hand hole cover, is beneficial to installation and disassembly, and is convenient to use.
In the boiler furnace detection hand hole device, the detection hand hole sleeve is a DN150 stainless steel tube.
In the hand hole detection device for the boiler furnace, the refractory heat-insulating material is light silicon carbide or high-aluminum refractory castable.
In the boiler furnace detection hand hole device, a handle is further arranged on one side, far away from the protruding cavity, of the detection hand hole cover.
The technical effect is that personnel's operation when being convenient for detect.
The beneficial effects of the utility model are as follows:
according to the detection hand hole cover, the inner cavity is formed in the bulge at one side of the detection hand hole cover, heat-insulating refractory materials can be filled, scalding or heat dissipation loss of operators is effectively prevented, the grooves are formed in the edges of the detection hand hole cover, the sealing effect is effectively achieved, and the burning accident caused by leakage of high-temperature smoke and the influence of internal leakage and cold air on natural circulation of boiler steam are prevented.
The detection handhole cover is arranged on the manhole cover through the hinge, so that a person can easily open and close the detection handhole cover without disassembling the detection handhole cover.
The locking device disclosed by the utility model does not need to use extra tools, can be conveniently locked and unlocked, not only prevents the risk of leakage of high-temperature smoke due to the fact that the detection handhole cover is flicked by positive pressure of the boiler, but also greatly saves the operation time of personnel.
The utility model realizes the modification of the hand hole of the boiler under the condition of not changing the original wall cladding pipe and water wall pipe of the boiler, and avoids a great amount of modification workload and damage to the water and steam power balance of the boiler.
The utility model comprises a detection hand hole sleeve, a detection hand hole cover is arranged on the outer side of the sleeve, a hand hole cover connecting device and a locking device which is convenient to lock and unlock are arranged on the outer side of the sleeve, an operator can easily and conveniently screw and unscrew the locking device, the hand hole cover is closed or opened by means of the hand hole cover connecting device under the condition that the hand hole cover is not required to be disassembled, and the portable detection equipment can detect CO and combustible gas data required by the detection hand hole sleeve penetrating into a hearth or a flue through the detection hand hole sleeve.
The utility model aims at the current detection situation through a manhole door to reconstruct, designs a set of reliable and convenient manual detection holes of a hearth and a flue on the basis of not changing the structures of the original boiler wall cladding pipe and the original boiler water wall pipe, and ensures the safety of the ignition starting operation of the boiler.
The utility model effectively prevents personal injury accidents in the process of disassembling the manhole door and hearth deflagration or explosion accidents caused by inconvenient detection without detection or less detection, thereby improving the working efficiency of personnel and guaranteeing the safety of personnel and boiler equipment.
Drawings
FIG. 1 is a schematic diagram of a device for detecting hand holes in a boiler furnace according to an embodiment of the present utility model;
FIG. 2 is a top view of the connecting device of FIG. 1;
in the figure: 1-manhole door sealing box, 2-manhole cover, 4-handle, 5-detection manhole sleeve, 6-detection manhole cover, 61-detection manhole cover, 62-cavity, 7-connecting device, 71-fixing seat, 72-rotating shaft, 73-connecting rod and 8-locking device.
Detailed Description
Example 1
The boiler furnace detection hand hole device is structurally characterized in that a manhole is arranged on a boiler furnace wall, a manhole door is arranged on an opening of the manhole to seal, the manhole door comprises a manhole door sealing box 1 and a manhole cover 2, the manhole cover 2 is arranged on the boiler furnace wall through the manhole door sealing box 1, a handle 4 is arranged on the outer side of the manhole cover 2, the structure of the boiler furnace detection hand hole device is shown in fig. 1-2, the boiler furnace detection hand hole device is arranged on the manhole cover 2 of the boiler, the boiler furnace detection hand hole device comprises a detection hand hole sleeve 5, a detection hand hole cover 6, a connecting device 7 and a locking device 8, the detection hand hole sleeve 5 penetrates the manhole cover 2 and is arranged in the manhole cover 2, one side of the detection hand hole sleeve 5 extends out of the manhole cover 2 and is located on the outer wall of the boiler, one side of the detection hand hole sleeve 5 extends out of the manhole cover 2 and is provided with a detection hand hole cover 6, one end of the detection hand hole cover 6 is movably connected with the manhole cover 2 through the connecting device 7, and the other end of the detection hand hole cover 6 is connected with the manhole cover 2 through the locking device 8 to realize opening and closing of the detection hand hole cover 6;
the detection handhole cover 6 comprises a detection handhole cover body 61 and a cavity 62, wherein one side of the detection handhole cover body 61 protrudes outwards to form a hollow cavity 62, a fireproof heat-insulating material is filled in the cavity 62, the edge of the detection handhole cover body 61 is concavely formed into a groove, asbestos is arranged in the groove to seal, and the detection handhole cover body is matched with the detection handhole sleeve, so that the detection handhole cover seals the detection handhole sleeve.
In this embodiment, the connecting device 7 includes a fixing base 71, a rotating shaft 72 and a connecting rod 73, the fixing base 71 is a fixing plate symmetrically arranged, a fixing base 71 is arranged on the manhole cover 2, a fixing base 71 is also arranged at a corresponding position on the manhole cover 61, one end of the connecting rod 73 is movably arranged on the fixing base 71 of the manhole cover 2 through the rotating shaft 72, and the other end is movably arranged on the fixing base 71 of the manhole cover 61 through the rotating shaft 72.
In this embodiment, the locking device 8 is two nuts and bolts, one side of the manhole cover 61 is fixedly connected with a nut, a nut is also arranged at a corresponding position on the manhole cover 2, and the bolts penetrate through the nuts on the manhole cover 61 and fasten with the nuts on the manhole cover 2 to realize locking and closing of the manhole cover 6.
In this embodiment, a handle is provided on one side of the bolt.
In this embodiment, the detection hand hole sleeve 5 is a DN150 stainless steel tube.
In this embodiment, the refractory insulating material is light silicon carbide or a high alumina refractory castable.
In this embodiment, a handle is further provided on the side of the inspection manhole cover 6 remote from the protruding cavity 62.
In the concrete implementation, tens of bolts connected with the original manhole door sealing box 1 are removed from the original hearth or flue manhole door cover 2, the original manhole door handle 4 is held by hand, after the original manhole door cover 2 is taken down, a hollow hole penetrating through heat insulation refractory material of DN150 is opened in the original manhole door cover, a stainless steel sleeve of DN150 is filled, two sections of the detection manhole sleeve are welded and fixed with the inner layer and the outer layer of the original manhole cover 2, the broken refractory material is refilled completely, the lower end of a connecting device 7 and a locking device 8 of the manhole cover are welded at the proper position of the detection manhole cover 6, the filling of the heat insulation refractory material and sealing asbestos of the manhole cover is completed, the prefabricated detection manhole cover device is prefabricated, after the position is confirmed, the upper end of the detection manhole cover connecting device 7 and a locking device 8 nut are welded with the original manhole cover 2, and finally, the detection manhole cover 2 is assembled to the manhole sealing box 1 in a reverse order according to the normal and reliable sequence of the opening, closing and releasing and locking functions of the detection manhole cover, and the whole construction bolt is completed.
The utility model utilizes the original manhole door to install the manual hand hole detection device on the premise of not changing the wall covering pipe and the water wall cooling pipe of the boiler, and does not need any tools before the boiler is started, thereby conveniently detecting CO and combustible gas in a hearth and a flue. The utility model not only reduces the detection workload, but also reduces the mechanical injury risk existing in the original detection process of disassembling and assembling manhole doors, and also avoids the possibility of explosion of a hearth and boiler explosion caused by complex work and no detection and less detection of personnel, thereby providing powerful guarantee for the personal safety of operators and the safety of boiler equipment.
In addition to the embodiments described above, other embodiments of the utility model are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model.
Claims (7)
1. The utility model provides a boiler furnace detects hand hole device, sets up on manhole cover (2) of boiler, its characterized in that: the detection device comprises a detection hand hole sleeve (5), a detection hand hole cover (6), a connecting device (7) and a locking device (8), wherein the detection hand hole sleeve (5) penetrates through a hand hole cover (2) and is arranged in the hand hole cover (2), one side of the detection hand hole sleeve (5) extends out of the hand hole cover (2) and is positioned on the outer wall of a boiler, one side of the detection hand hole sleeve (5) extending out of the hand hole cover (2) is provided with the detection hand hole cover (6), one end of the detection hand hole cover (6) is movably connected with the hand hole cover (2) through the connecting device (7), and the other end of the detection hand hole cover is connected with the hand hole cover (2) through the locking device (8) so as to realize opening and closing of the detection hand hole cover (6);
the detection handhole cover (6) comprises a detection handhole cover body (61) and a cavity (62), one side of the detection handhole cover body (61) protrudes outwards to form a hollow cavity (62), the cavity (62) is filled with a fireproof heat-insulating material, the edge of the detection handhole cover body (61) is concaved inwards to form a groove, and asbestos sealing is arranged in the groove.
2. The boiler furnace detection hand hole device according to claim 1, wherein: the connecting device (7) comprises a fixed seat (71), a rotating shaft (72) and a connecting rod (73), wherein the fixed seat (71) is a fixed plate which is symmetrically arranged, the manhole cover (2) is provided with the fixed seat (71), the corresponding position on the detection manhole cover (61) is also provided with the fixed seat (71), one end of the connecting rod (73) is movably arranged on the fixed seat (71) of the manhole cover (2) through the rotating shaft (72), and the other end of the connecting rod is movably arranged on the fixed seat (71) of the detection manhole cover (61) through the rotating shaft (72).
3. The boiler furnace detection hand hole device according to claim 1, wherein: the locking device (8) is composed of two nuts and bolts, one side of the detection handhole cover (61) is fixedly connected with one nut, a nut is arranged at the corresponding position of the handhole cover (2), and the bolts penetrate through the nuts on the detection handhole cover (61) and the nuts on the handhole cover (2) to be fastened so as to realize locking and closing of the detection handhole cover (6).
4. A boiler furnace detection hand hole apparatus according to claim 3, wherein: one side of the bolt is provided with a handle.
5. The boiler furnace detection hand hole device according to claim 1, wherein: the detection hand hole sleeve (5) is a DN150 stainless steel tube.
6. The boiler furnace detection hand hole device according to claim 1, wherein: the refractory heat-insulating material is light silicon carbide or high-alumina refractory castable.
7. The boiler furnace detection hand hole device according to claim 1, wherein: and a handle is further arranged on one side, far away from the protruding cavity (62), of the detection hand hole cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321091537.4U CN220323227U (en) | 2023-05-09 | 2023-05-09 | Hand hole detection device for boiler furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321091537.4U CN220323227U (en) | 2023-05-09 | 2023-05-09 | Hand hole detection device for boiler furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220323227U true CN220323227U (en) | 2024-01-09 |
Family
ID=89410016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321091537.4U Active CN220323227U (en) | 2023-05-09 | 2023-05-09 | Hand hole detection device for boiler furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220323227U (en) |
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2023
- 2023-05-09 CN CN202321091537.4U patent/CN220323227U/en active Active
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