CN222634614U - Fire detection installation sleeve and fire detection device - Google Patents
Fire detection installation sleeve and fire detection device Download PDFInfo
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- CN222634614U CN222634614U CN202421249561.0U CN202421249561U CN222634614U CN 222634614 U CN222634614 U CN 222634614U CN 202421249561 U CN202421249561 U CN 202421249561U CN 222634614 U CN222634614 U CN 222634614U
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Abstract
本公开涉及一种火检安装套管和火检装置，用于解决火检探头镜片的清洁不便于维护的技术问题。火检安装套管包括：管体，用于套设在火检光纤的外侧，以使得火检光纤的前端的火检探头容纳在管体的内腔中，管体的前端能够伸入锅炉中并设置有开口，以使得火检探头透过开口监测火焰，管体的内壁和外壁之间形成有夹层空腔，第一接口，设置于外壁上，并与夹层空腔流体连通，以向夹层空腔中通入压缩空气，以及喷嘴，设置于内壁上对应于火检探头前侧的位置，喷嘴与夹层空腔流体连通，以朝向火检探头的镜片喷射压缩空气。
The present disclosure relates to a fire detection installation sleeve and a fire detection device, which are used to solve the technical problem that the cleaning of the lens of the fire detection probe is inconvenient to maintain. The fire detection installation sleeve includes: a tube body, which is used to be sleeved on the outside of the fire detection optical fiber so that the fire detection probe at the front end of the fire detection optical fiber is accommodated in the inner cavity of the tube body, the front end of the tube body can be extended into the boiler and is provided with an opening so that the fire detection probe monitors the flame through the opening, an interlayer cavity is formed between the inner wall and the outer wall of the tube body, a first interface is provided on the outer wall and is in fluid communication with the interlayer cavity to pass compressed air into the interlayer cavity, and a nozzle is provided on the inner wall at a position corresponding to the front side of the fire detection probe, and the nozzle is in fluid communication with the interlayer cavity to spray compressed air toward the lens of the fire detection probe.
Description
Technical Field
The disclosure relates to the technical field of fire detection, in particular to a fire detection installation sleeve and a fire detection device.
Background
Hearth flame gathers light through the fire detection probe, introduces the fire detection probe board through optic fibre, generates flame intensity signal through calculation, and the flame detection system can't detect flame signal because of the lens deposition blocks boiler flame in the in-process of work often to result in the fire detection probe, influences boiler operating personnel erroneous judgement and drops into the oil gun combustion-supporting, causes a large amount of fuel to waste. When three-quarter fire detection signals are misreported and no fire exists, the fire is extinguished by misfiring of the full hearth, and the MFT boiler is started to jump.
In order to clean the lens dust deposit on the fire detection probe, a mode of manually extracting the fire detection and manually cleaning the lens is generally adopted, and the defects of long waiting time, long fault recovery time, manual operation and the like are overcome. After the fault is found, the maintenance personnel is notified, the maintenance personnel catches up to the site, the maintenance personnel removes the line on the site, the fire inspection is pulled out, the fire inspection lens is cleaned, the field equipment is recovered, time and labor are required, time and labor are wasted, and the system loses monitoring for a long time.
Disclosure of utility model
The purpose of the present disclosure is to provide a fire detection installation sleeve and fire detection device to solve the clean technical problem that is inconvenient for the maintenance of fire detection probe lens.
In order to achieve the above object, the present disclosure provides a fire detection installation sleeve, including a pipe body, for sleeving on the outer side of a fire detection optical fiber, so that a fire detection probe at the front end of the fire detection optical fiber is accommodated in an inner cavity of the pipe body, the front end of the pipe body can extend into a boiler and is provided with an opening, so that the fire detection probe monitors flame through the opening, an interlayer cavity is formed between an inner wall and an outer wall of the pipe body, a first interface is arranged on the outer wall and is in fluid communication with the interlayer cavity, so that compressed air is introduced into the interlayer cavity, and a nozzle is arranged on the inner wall at a position corresponding to the front side of the fire detection probe, and is in fluid communication with the interlayer cavity, so that compressed air is sprayed towards a lens of the fire detection probe.
Optionally, a plurality of nozzles are arranged on the inner wall, and the plurality of nozzles are arranged in an array around the central axis of the pipe body.
Optionally, the nozzle extends obliquely from the inner wall towards the rear end of the tube.
Optionally, the nozzle forms an angle of 50 ° to 70 ° with the radial direction of the tube body.
Optionally, a second interface is further provided on the outer wall, and the second interface is in fluid communication with the inner cavity so as to introduce cooling air into the inner cavity.
Optionally, the second interface is disposed at a position of the tube body corresponding to an outer circumferential surface of the fire detection optical fiber.
Optionally, a first flange is arranged at the rear end of the pipe body, and the pipe body is fixedly connected with the fire detection optical fiber through the first flange.
Optionally, the pipe body is processed by adopting double-layer steel pipes, the steel pipes of the inner layer are constructed as the inner wall, the steel pipes of the outer layer are constructed as the outer wall, and the front ends of the two layers of steel pipes are connected in a sealing way, so that the interlayer cavity is formed between the two layers of steel pipes.
On the basis of the technical scheme, the fire detection device further comprises a fire detection optical fiber, a fire detection probe is arranged at the front end of the fire detection optical fiber, and the fire detection installation sleeve in the technical scheme, wherein the tube body is sleeved on the outer side of the fire detection optical fiber, and the fire detection probe is accommodated in the inner cavity.
Optionally, the rear end of the fire detection optical fiber is provided with a second flange plate, and the fire detection optical fiber is fixedly connected with the pipe body through the second flange plate.
Through above-mentioned technical scheme, in the installation sleeve is examined to fire that this disclosure provided, compressed air can be through first interface and intermediate layer cavity supply to the nozzle of setting in the fire inspection probe front side to through the nozzle blowout, the compressed air of lasting injection not only can blow off the deposition on the lens, can also form the air curtain before the lens, thereby avoid the lens to receive the pollution of impurity in the boiler. Through this fire detection installation sleeve pipe for the cleanness of the lens of fire detection probe is easy to maintain, and need not the manual work and extract the fire detection probe and clean, avoids flame monitoring signal to break off and fire to examine the intensity and show the wrong operating personnel operation erroneous judgement that brings. The fire detection device provided by the disclosure has the same technical effect as the fire detection installation sleeve in the technical scheme, and in order to avoid unnecessary repetition, a detailed description is omitted.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a perspective view of a fire detection mounting sleeve in an embodiment of the present disclosure;
Fig. 2 is an assembled perspective view of a fire detection mounting sleeve and a fire detection optical fiber in an embodiment of the present disclosure.
Description of the reference numerals
1-A pipe body, 10-a sandwich cavity, 11-an inner wall, 12-an outer wall, 13-an opening, 14-an inner cavity, 15-a first flange,
A 2-nozzle, which is provided with a nozzle,
A 3-a first interface to be connected to the first interface,
A 4-second interface for the connection of the first and second terminals,
5-Fire detection optical fiber, 51-second flange plate,
6-Fire detection probe, 61-lens.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise indicated, the term "front" and "rear" are used to refer to the side of the fire detection device facing the flame in the boiler as the front and the side facing away from the flame in the boiler as the rear, and the term "inside and outside" refers to the inside and the outside with respect to the outline of the corresponding parts. The terms "first," "second," and the like, as used in this disclosure, are used for distinguishing one element from another and not necessarily for order or importance. Furthermore, when the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated.
According to a specific embodiment of the present disclosure, there is provided a fire detection mounting sleeve, as shown with reference to fig. 1 and 2, which may include a tube body 1, a nozzle 2, and a first interface 3, wherein the tube body 1 is configured to be sleeved outside a fire detection optical fiber 5, such that a fire detection probe 6 of a front end of the fire detection optical fiber 5 is received in an inner cavity 14 of the tube body 1, the front end of the tube body 1 may extend into a boiler and be provided with an opening 13, such that the fire detection probe 6 monitors a flame through the opening 13, an interlayer cavity 10 may be formed between an inner wall 11 and an outer wall 12 of the tube body 1, the first interface 3 may be provided on the outer wall 12 and may be in fluid communication with the interlayer cavity 10, the first interface 3 may be connected with an external compressed air source (not shown) to introduce compressed air into the interlayer cavity 10, the nozzle 2 may be provided on the inner wall 11 at a position corresponding to a front side of the fire detection probe 6, and the nozzle 2 may be in fluid communication with the interlayer cavity 10 to inject compressed air toward a lens 61 of the fire detection probe 6.
Through above-mentioned technical scheme, in the fire detection installation sleeve that this disclosure provided, compressed air can be supplied to the nozzle 2 that sets up in fire detection probe 6 front side through first interface 3 and intermediate layer cavity 10 to through nozzle 2 blowout, the compressed air that continues to spray not only can blow off the deposition on the lens 61, can also form the air curtain before lens 61, thereby avoid lens 61 to receive the pollution of boiler interior impurity. Through this fire detection installation sleeve pipe for the cleanness of the lens 61 of fire detection probe 6 is easy to maintain, and need not the manual work to pull out fire detection probe 6 and clean, avoids the operation personnel operation erroneous judgement that flame monitoring signal interruption and fire detection intensity display mistake brought.
In order to ensure the injection uniformity of the compressed air, as shown in fig. 1 and 2, a plurality of nozzles 2 may be provided on the inner wall 11, and the plurality of nozzles 2 may be arrayed around the central axis of the tube body 1, so that the compressed air may be uniformly injected at the front side of the lens 61, thereby making the thickness of the air curtain in front of the lens 61 uniform and improving the blocking reliability of the air curtain against dust and impurities.
In order to improve the efficiency of cleaning the dust on the lens 61 by the compressed air, as shown in fig. 1 and 2, the nozzle 2 may be inclined from the inner wall 11 toward the rear end of the tube 1, so that the nozzle 2 can spray the compressed air toward the lens 61, and improve the accuracy of cleaning the dust on the lens 61 by the compressed air.
In a specific embodiment of the present disclosure, the nozzle 2 may have an angle of 50 ° to 70 ° with respect to the radial direction of the tube body 1, and preferably, the angle may be 60 °.
In order to avoid the excessive temperature of the fire detection optical fiber 5, referring to fig. 1 and 2, the outer wall 12 may be further provided with a second interface 4, where the second interface 4 may be in fluid communication with the inner cavity 14, and the second interface 4 may be connected with an external cooling air source, so as to introduce cooling air into the inner cavity 14, so that the cooling air can cool the fire detection optical fiber 5, and avoid the excessive temperature of the fire detection optical fiber 5.
Referring to fig. 1 and 2, the second interface 4 may be disposed at a position of the tube body 1 corresponding to the outer circumferential surface of the fire detection optical fiber 5, so that cooling air can purge the outer circumferential surface of the fire detection optical fiber 5 after entering the inner cavity 14, and accelerate cooling of the fire detection optical fiber 5 by the cooling air.
In order to fixedly connect the tube body 1 with the fire detection optical fiber 5, referring to fig. 1 and 2, a first flange 15 may be disposed at the rear end of the tube body 1, and the tube body 1 may be fixedly connected with a second flange 51 at the rear end of the fire detection optical fiber 5 described below through the first flange 15.
In order to facilitate the formation of the interlayer cavity 10 in the pipe body 1, the pipe body 1 may be formed by processing a double-layer high temperature resistant steel pipe, the steel pipe of the inner layer may be configured as an inner wall 11, the steel pipe of the outer layer may be configured as an outer wall 12, and the front ends of the two layers of steel pipes may be connected in a sealing manner, so that the interlayer cavity 10 is formed between the two layers of steel pipes, and thus the interlayer cavity 10 is only in fluid communication with the first interface 3 and the nozzle 2, so as to avoid leakage of compressed air.
On the basis of the technical scheme, the present disclosure further provides a fire detection device, and referring to fig. 1, the fire detection device may include a fire detection optical fiber 5 and a fire detection installation sleeve in the technical scheme, a fire detection probe 6 may be disposed at a front end of the fire detection optical fiber 5, a tube body 1 of the fire detection installation sleeve may be sleeved on an outer side of the fire detection optical fiber 5, and the fire detection probe 6 may be accommodated in an inner cavity 14.
Through above-mentioned technical scheme, the fire detection device that this disclosure provided has the same technical effect with the fire detection installation sleeve among the above-mentioned technical scheme, in order to avoid unnecessary repetition, the description is omitted here.
In order to facilitate the fixed connection between the fire detection optical fiber 5 and the pipe body 1, referring to fig. 1, the rear end of the fire detection optical fiber 5 may be provided with a second flange plate 51, the rear end of the pipe body 1 may be provided with a first flange plate 15, and the fire detection optical fiber 5 may be fixedly connected with the first flange plate 15 at the rear end of the pipe body 1 through the second flange plate 51.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A fire detection installation sleeve, comprising:
The tube body is used for being sleeved on the outer side of the fire detection optical fiber, so that a fire detection probe at the front end of the fire detection optical fiber is accommodated in an inner cavity of the tube body, the front end of the tube body can extend into a boiler and is provided with an opening, the fire detection probe monitors flame through the opening, an interlayer cavity is formed between the inner wall and the outer wall of the tube body,
A first port disposed on the outer wall and in fluid communication with the interlayer cavity for introducing compressed air into the interlayer cavity, an
And the nozzle is arranged on the inner wall at a position corresponding to the front side of the fire detection probe, and is in fluid communication with the interlayer cavity so as to spray compressed air towards the lens of the fire detection probe.
2. A fire detection mounting sleeve according to claim 1, wherein a plurality of said nozzles are provided on said inner wall, said plurality of nozzles being arrayed around a central axis of said tubular body.
3. A fire detection mounting sleeve according to claim 1 or claim 2, wherein the nozzle extends obliquely from the inner wall towards the rear end of the tube.
4. A fire detection mounting sleeve according to claim 3, wherein the nozzle is at an angle of 50 ° to 70 ° to the radial direction of the tube body.
5. A fire detection mounting sleeve according to claim 1, wherein a second port is also provided on the outer wall, the second port being in fluid communication with the inner cavity for the passage of cooling air into the inner cavity.
6. A fire detection mounting sleeve according to claim 5, wherein the second interface is provided at a position of the tube body corresponding to an outer peripheral surface of the fire detection optical fiber.
7. The fire detection installation sleeve of claim 1, wherein a first flange is disposed at a rear end of the tube body, and the tube body is fixedly connected with the fire detection optical fiber through the first flange.
8. The fire detection mounting sleeve according to claim 1, wherein the tube body is formed by machining double-layer steel tubes, the steel tubes of the inner layer are configured as the inner wall, the steel tubes of the outer layer are configured as the outer wall, and the front ends of the two layers of steel tubes are connected in a sealing manner, so that the interlayer cavity is formed between the two layers of steel tubes.
9. A fire detection device, comprising:
a fire detection optical fiber, a fire detection probe arranged at the front end, and
The fire detection mounting sleeve of any one of claims 1 to 8, the tube body being sleeved outside the fire detection optical fiber, the fire detection probe being housed in the inner cavity.
10. The fire detection device according to claim 9, wherein a second flange is arranged at the rear end of the fire detection optical fiber, and the fire detection optical fiber is fixedly connected with the pipe body through the second flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421249561.0U CN222634614U (en) | 2024-06-03 | 2024-06-03 | Fire detection installation sleeve and fire detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421249561.0U CN222634614U (en) | 2024-06-03 | 2024-06-03 | Fire detection installation sleeve and fire detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222634614U true CN222634614U (en) | 2025-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421249561.0U Active CN222634614U (en) | 2024-06-03 | 2024-06-03 | Fire detection installation sleeve and fire detection device |
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| Country | Link |
|---|---|
| CN (1) | CN222634614U (en) |
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2024
- 2024-06-03 CN CN202421249561.0U patent/CN222634614U/en active Active
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