CN210267318U - Flame detector - Google Patents
Flame detector Download PDFInfo
- Publication number
- CN210267318U CN210267318U CN201920969190.6U CN201920969190U CN210267318U CN 210267318 U CN210267318 U CN 210267318U CN 201920969190 U CN201920969190 U CN 201920969190U CN 210267318 U CN210267318 U CN 210267318U
- Authority
- CN
- China
- Prior art keywords
- fire detection
- sleeve
- detection protective
- protective sleeve
- outer sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fire-Detection Mechanisms (AREA)
- Control Of Combustion (AREA)
Abstract
The utility model discloses a flame detector, which comprises an optical fiber, a fire detection protective sleeve and a cooling air pipeline, wherein the optical fiber is arranged in the fire detection protective sleeve, one end of the fire detection protective sleeve is connected with the cooling air pipeline, the other end of the fire detection protective sleeve is arranged in a furnace chamber and is provided with an outer sleeve which is welded on a furnace wall, and the outer sleeve is of a columnar structure; or the outer sleeve is in a horn-shaped structure; or the part of the outer sleeve positioned in the hearth is of a horn-shaped structure; the one end of fire detection protective case can pass in this outer tube gets into furnace, and the fire that is located furnace examines protective case and can freely remove or swing in this outer tube, examines through mounting sealing connection between protective case with the outer fire of furnace, utilizes this flame detector in this application can solve the easy cracked problem of current fire detection protective case.
Description
Technical Field
The utility model particularly relates to a flame detector.
Background
In a thermal power plant, in order to timely and reliably detect the combustion condition in a hearth, at present, a common practice is to install at least one group of flame detectors on the hearth wall, the existing flame detectors mainly comprise an optical fiber with a fire detection probe, a fire detection protective sleeve, a hearth wall installation pipe and a cooling air pipeline, the optical fiber is installed in the fire detection protective sleeve, one end of the fire detection protective sleeve is connected with the cooling air pipeline, the other end of the fire detection protective sleeve is arranged in the hearth through the hearth wall installation pipe and is limited by the structure of the hearth wall installation pipe, the fire detection protective sleeve positioned in the hearth cannot move, meanwhile, the fire detection protective sleeve is a metal hose and is extremely easy to wear in the use process, therefore, when the fire detection probe swings along with the fuel gas spraying swing angle of a boiler, the fire detection protective sleeve is limited by the hearth installation pipe not only to not move, but also increases the friction frequency between the fire detection protective sleeve and the installation pipe or the contact part, therefore, the fire detection protective sleeve is broken, or the optical fiber is damaged, so that the safe and stable operation of the coal mill is seriously threatened.
Disclosure of Invention
The utility model aims at providing a flame detector solves the easy cracked problem of protective case is examined to current fire.
In order to solve the problems, the application provides a flame detector which comprises an optical fiber (1), a fire detection protective sleeve (2) and a cooling air pipeline (3), wherein the optical fiber (1) is installed in the fire detection protective sleeve (2), one end of the fire detection protective sleeve (2) is connected with the cooling air pipeline (3), and the other end of the fire detection protective sleeve is arranged in a hearth; or the outer sleeve (4) is of a horn-shaped structure; or the part of the outer sleeve (4) positioned in the hearth is of a trumpet-shaped structure; one end of the fire detection protective sleeve (2) can penetrate through the outer sleeve (4) to enter the hearth, the fire detection protective sleeve (2) positioned in the hearth can freely move or swing in the outer sleeve (4), and the outer sleeve (4) is in sealing connection with the fire detection protective sleeve (2) outside the hearth through a fixing piece.
As a preferable scheme of the application, when the outer sleeve (4) is in a columnar structure, the length of the outer sleeve (4) positioned in the hearth is smaller than that of the outer sleeve (4) positioned in the hearth.
As a preferable scheme of the application, the fixing piece comprises a metal pipe clamp (6) and a gland (7), or the fixing piece comprises the metal pipe clamp (6) and a sealing gasket (8).
As a preferable scheme of the application, the outer periphery of the part of the outer sleeve (4) positioned outside the furnace wall (5) is provided with a thread (41), and the thread (41) can increase the friction force between the fixing piece and the outer sleeve (4).
Compared with the prior art, an outer tube 4 structure has been increased in this flame detector in this application, fire is examined protective case 2 and is passed in this outer tube 4 gets into furnace and can freely move or swing in outer tube 4, also adopt outer tube 4 structure to increase the live range that fire was examined protective case 2 in the furnace, it examines protective case 2 and can not move to avoid current fire to examine protective case 2 and receive the restriction of 5 mounting tube structures of oven make the fire that is located furnace to examine protective case 2, and then lead to the easy cracked problem of protective case 2 is examined to fire, and simultaneously, this flame detector in the application of adoption can ensure that optic fibre 1 probe is difficult to be burnt out, maintenance cost and maintenance duration have been saved, ensure the safe and stable operation of unit.
Reference numerals
The fire detection device comprises an optical fiber 1, a fire detection protective sleeve 2, a cooling air pipeline 3, an outer sleeve 4, threads 41, a furnace wall 5, a metal pipe clamp 6, a gland 7 and a sealing gasket 8.
Drawings
Fig. 1 is a schematic structural diagram of a flame detector according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another flame detector according to an embodiment of the present invention;
fig. 3 is a partial enlarged view of a portion a in fig. 2 according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another flame detector according to an embodiment of the present invention.
Detailed Description
The embodiment provides a flame detector, which comprises an optical fiber 1, a fire detection protective sleeve 2, a cooling air pipeline 3 and an outer sleeve 4, wherein the optical fiber 1 is installed in the fire detection protective sleeve 2, one end of the fire detection protective sleeve 2 is connected with the cooling air pipeline 3, the other end of the fire detection protective sleeve passes through the outer sleeve 4 and is arranged in a hearth, the fire detection protective sleeve 2 positioned in the hearth can freely move or swing in the outer sleeve 4, the outer sleeve 4 is in sealed connection with the fire detection protective sleeve 2 outside the hearth through a fixing part, in the embodiment, the outer sleeve 4 is welded on a furnace wall 5, and the outer sleeve 4 is of a columnar structure; or, the outer sleeve 4 is in a horn-shaped structure; alternatively, the portion of the outer jacket tube 4 located within the furnace is of a trumpet-like configuration, see fig. 1, 2 and 4.
Further, in this embodiment, in order to avoid the outer sleeve 4 from restricting the fire detection protective sleeve, it is preferable that when the outer sleeve 4 is in a cylindrical structure, the length of the outer sleeve 4 located in the hearth is smaller than the length of the outer sleeve 4 located in the hearth.
Further, in this embodiment, the fixing member includes the metal pipe clamp 6 and the pressing cover 7, or the fixing member includes the metal pipe clamp 6 and the sealing gasket 8, and in this embodiment, it is preferable that the fixing member includes the metal pipe clamp 6 and the pressing cover 7, and the gap between the outer sleeve 4 and the fire detection protection sleeve 2 can be sealed by using the metal pipe clamp 6 and the pressing cover 7, so as to avoid the occurrence of the air leakage phenomenon.
Further, in this embodiment, in order to avoid the fixing element slipping off the outer sleeve 4, it is preferred that the outer periphery of the portion of the outer sleeve 4 located outside the furnace wall 5 is provided with a thread 41, see fig. 3, which thread 41 increases the friction between the fixing element and the outer sleeve 4.
Before the fire detection device is used, one end of the fire detection protective sleeve 2 penetrates through the outer sleeve 4 to be arranged in a boiler, the fire detection probe on the optical fiber 1 is connected to the swing angle of the gas sprayed by the boiler, cold air is fed into the fire detection protective sleeve 2 through the cooling air pipeline 3 to realize the cooling of the optical fiber 1 and the fire detection probe, when the optical fiber 1 swings along with the jet combustion gas frequently, because of the structure of the outer sleeve 4, the fire detection protective sleeve 2 can freely move or swing in the outer sleeve 4, namely, the outer sleeve 4 can be used for increasing the swing angle and range of the fire detection protective sleeve 2, reducing the friction frequency between the fire detection protective sleeve 2 and the furnace wall 5 or the outer sleeve 4, therefore, the flame detector in the embodiment can avoid the problem that the fire detection protective sleeve 2 is easy to break, save the use cost and ensure the safe and stable operation of the unit.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and for those skilled in the art, the structure of the flame detector of the present invention can be varied, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (5)
1. A flame detector comprises an optical fiber (1), a fire detection protective sleeve (2) and a cooling air pipeline (3), wherein the optical fiber (1) is installed in the fire detection protective sleeve (2), one end of the fire detection protective sleeve (2) is connected with the cooling air pipeline (3), and the other end of the fire detection protective sleeve is arranged in a hearth; or the outer sleeve (4) is of a horn-shaped structure; or the part of the outer sleeve (4) positioned in the hearth is of a trumpet-shaped structure; one end of the fire detection protective sleeve (2) can penetrate through the outer sleeve (4) to enter the hearth, the fire detection protective sleeve (2) positioned in the hearth can freely move or swing in the outer sleeve (4), and the outer sleeve (4) is in sealing connection with the fire detection protective sleeve (2) outside the hearth through a fixing piece.
2. Flame detector according to claim 1, characterized in that the outer jacket tube (4) is of a cylindrical configuration, the length of the outer jacket tube (4) located in the furnace being smaller than the length of the outer jacket tube (4) located in the furnace.
3. Flame detector according to claim 1 or 2, characterized in that the fixing member comprises a metal pipe clamp (6) and a gland (7) or the fixing member comprises a metal pipe clamp (6) and a sealing gasket (8).
4. A flame detector according to claim 1 or 2, characterized in that the outer jacket tube (4) is provided with a thread (41) on the outer circumference of the part of the furnace wall (5), which thread (41) increases the friction between the fixing element and the jacket tube (4).
5. A flame detector according to claim 3, characterized in that the outer sleeve (4) is provided with a thread (41) on the outer periphery of the part of the furnace wall (5), which thread (41) increases the friction between the fixing element and the outer sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969190.6U CN210267318U (en) | 2019-06-25 | 2019-06-25 | Flame detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969190.6U CN210267318U (en) | 2019-06-25 | 2019-06-25 | Flame detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210267318U true CN210267318U (en) | 2020-04-07 |
Family
ID=70044987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920969190.6U Active CN210267318U (en) | 2019-06-25 | 2019-06-25 | Flame detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210267318U (en) |
-
2019
- 2019-06-25 CN CN201920969190.6U patent/CN210267318U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210267318U (en) | Flame detector | |
| CN203642662U (en) | Burner block of bauxite shaft kiln | |
| CN203349930U (en) | Flame-proof integrated flame detector | |
| US20130008180A1 (en) | Method and apparatus for distributed cleft and liberated tile detection achieving full coverage of the turbine combustion chamber | |
| CN104048753B (en) | A kind of flame detecting device | |
| CN102041104A (en) | Flame detection probe protector | |
| CN103822706B (en) | Judge the method for the long combustion of torch altar lamp which burns day and night | |
| CN204678358U (en) | Coke removing appts in a kind of boiler fire inspection protection system | |
| CN215112585U (en) | Nozzle of fuel pipe, ignition device and gasification furnace | |
| CN201873652U (en) | Protective device for flame detection probe | |
| CN203927994U (en) | A kind of flame detection device that ensures sealing property that is beneficial to | |
| CN211739161U (en) | Peep-out type flame detector | |
| CN207716458U (en) | Station boiler flame detector | |
| CN213713119U (en) | Flame detection device | |
| CN108662579B (en) | Structure for preventing pulverized coal leakage of cyclone burner | |
| CN107588848A (en) | Burner based on vibration principle stops working monitoring device | |
| CN201327414Y (en) | Flame detector probe | |
| CN203929222U (en) | A kind of flame detection device | |
| CN103090985A (en) | Sheathed thermocouple component penetrating high-temperature high-pressure helium pressure shell | |
| CN208432279U (en) | A kind of anti-dust device of flame detector camera lens | |
| CN213420289U (en) | On-line leak detection corrugated pipe compensator applied to high-temperature occasions | |
| CN218993447U (en) | Infrared fire detection device of pulverized coal boiler | |
| CN203929220U (en) | A kind of flame detection device thermal stress to good conformity ability | |
| CN117606698A (en) | Plasma ignition system water leakage monitoring device | |
| CN216557204U (en) | Device for improving sensitivity of flame detection probe of gas boiler in power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230807 Address after: 832000 2 North East Road, Shihezi, the Xinjiang Uygur Autonomous Region Patentee after: XINJIANG TIANFU ENERGY Co.,Ltd. Patentee after: XINJIANG TIANFU GROUP CO.,LTD. Patentee after: Tianhe thermal power branch of Xinjiang Tianfu Energy Co.,Ltd. Patentee after: Xinjiang Tianfu Energy Sales Co.,Ltd. Address before: 832000 2 North East Road, Shihezi, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG TIANFU ENERGY Co.,Ltd. Patentee before: XINJIANG TIANFU GROUP CO.,LTD. Patentee before: Tianhe thermal power branch of Xinjiang Tianfu Energy Co.,Ltd. |
|
| TR01 | Transfer of patent right |