CN220584753U - Air-cooled flame-proof type fire detector - Google Patents
Air-cooled flame-proof type fire detector Download PDFInfo
- Publication number
- CN220584753U CN220584753U CN202322246530.1U CN202322246530U CN220584753U CN 220584753 U CN220584753 U CN 220584753U CN 202322246530 U CN202322246530 U CN 202322246530U CN 220584753 U CN220584753 U CN 220584753U
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- air
- shell
- wall
- lens
- casing
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- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fire-Detection Mechanisms (AREA)
Abstract
The utility model relates to the technical field of fire detectors and discloses an air-cooled flame-proof type fire detector which comprises a shell, wherein a lens mounting cover is movably mounted at an opening at one end of the shell, a lens is arranged on the lens mounting cover, a first temperature sensor is arranged on the outer wall of the shell and used for monitoring the external temperature of the shell, a high-temperature-resistant cable is arranged on the outer wall of the shell, a mounting shell is mounted in the shell, and a detector body is mounted in the mounting shell.
Description
Technical Field
The utility model relates to the technical field of fire detectors, in particular to an air-cooled flame-proof type fire detector.
Background
The fire detector is a device for detecting fire in an automatic fire alarm system. Fire detectors are the "sense organs" of the system that function to monitor the environment for the occurrence of a fire. Once a fire condition exists, the characteristic physical quantity of the fire, such as temperature, smoke, gas, radiation intensity and the like, is converted into an electric signal, and immediately acts to send an alarm signal to a fire alarm controller, and the existing air-cooled flame-proof type fire detector can not effectively remove dust and mist from a detection camera when in use.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an air-cooled flame-proof type fire detector.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the air-cooled flame-proof type fire detector comprises a shell, wherein a lens mounting cover is movably mounted at an opening at one end of the shell, a lens is arranged on the lens mounting cover, a first temperature sensor is arranged on the outer wall of the shell and used for monitoring the external temperature of the shell, a high-temperature-resistant cable is arranged on the outer wall of the shell, a mounting shell is mounted in the shell, and a detector body is mounted in the mounting shell; the device comprises a lens mounting cover, a lens mounting shell, a detector body, a lens and a lens, wherein a perforation is formed in one end of the mounting shell, close to the lens mounting cover, and a detection camera is arranged on one side of the detector body, close to the perforation opening, and is used for detecting fire conditions; a heat dissipation cavity is arranged between the outer wall of the installation shell and the inner wall of the shell, a vortex tube is installed on one side wall of the shell, a vortex tube vortex chamber is arranged at one end of the vortex tube close to the shell, a compressed air inlet end is arranged on the side wall of the vortex tube vortex chamber, a hot air discharge end is arranged at one end of the vortex tube far away from the shell, and a cold air discharge end is arranged at one end of the vortex tube extending into the heat dissipation cavity; the side wall of the lens mounting cover is provided with a heat dissipation hole; the circumference inner wall of the lens mounting cover is obliquely arranged and is used for guiding the gas flowing in the heat dissipation cavity to the side face of the lens.
As still further aspects of the utility model: the inner wall of the installation shell is provided with a second temperature sensor for monitoring the temperature in the installation shell.
As still further aspects of the utility model: the circumference inner wall of lens installation lid is provided with annular structure's wind-guiding part, and the lateral wall of wind-guiding part is the slope setting for the air current that flows to the lens installation lid side in the heat dissipation chamber is directed.
As still further aspects of the utility model: the air guide component is positioned between the radiating hole opening and the mounting shell.
As still further aspects of the utility model: the outer wall of the shell is provided with mounting flanks.
The beneficial effects of the utility model are as follows: when the temperature outside the shell is detected by the first temperature sensor to be higher than a set value, compressed air is injected into the vortex chamber of the vortex tube through the compressed air inlet end, air in the vortex tube rotates at a high speed to flow to the hot air exhaust end, a part of air flows out through the control valve at the hot air exhaust end, after the rest air is blocked, the inner ring of the original air flows reversely rotate at the same rotating speed and flows to the cold air exhaust end, in the process, the two air flows exchange heat, the temperature of the inner ring of the air is reduced, the air flows into the heat dissipation cavity from the cold air exhaust end, the interior of the shell and the installation shell is cooled, the air after heat exchange in the heat dissipation cavity flows to the opening of the heat dissipation hole and is exhausted, and the air flowing to the lens installation cover is guided by the inclined circumferential inner wall of the lens installation cover, so that the air can form an air curtain at the lens, and the functions of dust removal and defogging of the detection camera are realized.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of an air-cooled flameproof fire detector according to the present utility model;
FIG. 2 is a schematic diagram of a top view structure of an air-cooled flameproof fire detector according to the present utility model;
FIG. 3 is a schematic diagram of A-A structure of an air-cooled flameproof fire detector according to the present utility model;
FIG. 4 is a schematic diagram of a front view of an air-cooled flameproof fire detector according to the present utility model;
fig. 5 is an enlarged view of a partial structure at B in fig. 3.
In the figure: 1-shell, 2-lens mounting cover, 3-mounting flank, 4-first temperature sensor, 5-high temperature resistant cable, 6-vortex tube vortex chamber, 7-vortex tube, 8-cold air discharge end, 9-detector body, 10-heat dissipation chamber, 11-detection camera, 12-lens, 13-steam discharge end, 14-compressed air inlet end, 15-mounting shell, 16-perforation, 17-louvre, 18-wind-guiding part, 19-second temperature sensor.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
Referring to fig. 1-5, an air-cooled flameproof fire detector comprises a shell 1, wherein a lens mounting cover 2 is movably mounted at an opening at one end of the shell 1, a lens 12 is arranged on the lens mounting cover 2, a first temperature sensor 4 is arranged on the outer wall of the shell 1 and used for monitoring the external temperature of the shell 1, a high-temperature-resistant cable 5 is arranged on the outer wall of the shell 1, a mounting shell 15 is mounted in the shell 1, and a detector body 9 is mounted in the mounting shell 15; a perforation 16 is formed at one end of the mounting shell 15, which is close to the lens mounting cover 2, and a detection camera 11 is arranged at one side of the detector body 9, which is close to the opening of the perforation 16, and is used for detecting fire conditions; a heat dissipation cavity 10 is arranged between the outer wall of the installation shell 15 and the inner wall of the shell 1, a vortex tube 7 is installed on one side wall of the shell 1, a vortex tube vortex chamber 6 is arranged at one end, close to the shell 1, of the vortex tube 7, a compressed air inlet end 14 is arranged on the side wall of the vortex tube vortex chamber 6, a hot air discharge end 13 is arranged at one end, far away from the shell 1, of the vortex tube 7, and a cold air discharge end 8 is arranged at one end, extending into the heat dissipation cavity 10, of the vortex tube 7; the side wall of the lens mounting cover 2 is provided with a heat dissipation hole 17; the circumferential inner wall of the lens mounting cover 2 is inclined to guide the gas flowing in the heat dissipation chamber 10 to the side of the lens 12.
When the temperature outside the shell 1 is detected by the first temperature sensor 4 to be higher than a set value, compressed air is injected into the vortex chamber 6 of the vortex tube through the compressed air inlet end 14, air in the vortex tube 7 flows to the hot air exhaust end 13 in a high-speed rotating way, part of the air flows out through the control valve at the hot air exhaust end 13, after the rest air is blocked, the inner ring of the original air flows in the reverse direction at the same rotating speed and flows to the cold air exhaust end 8, in the process, the two air flows are subjected to heat exchange, the temperature of the inner ring of the air is reduced, the air flows into the heat dissipation cavity 10 from the cold air exhaust end 8, the inside of the shell 1 and the installation shell 15 is cooled, the air after heat exchange in the heat dissipation cavity 10 flows to the opening of the heat dissipation hole 17 and is exhausted, and the circumferential inner wall of the lens installation cover 2 is obliquely arranged guides the air flowing to the lens installation cover 2, so that the air can form an air curtain at the lens 12, and the functions of dust removal and defogging of the detection camera 11 are realized.
As a preferred embodiment of the utility model, the inner wall of the mounting housing 15 is provided with a second temperature sensor 19 for monitoring the temperature inside the mounting housing 15.
As a preferred embodiment of the present utility model, the circumferential inner wall of the lens mounting cover 2 is provided with the air guiding component 18 with an annular structure, and the side wall of the air guiding component 18 is obliquely arranged, so as to guide the air flow flowing to the side surface of the lens mounting cover 2 in the heat dissipation cavity 10, blow the air flow to the detection camera 11, prevent the air flow flowing to the lens mounting cover 2 in the heat dissipation cavity 10 from directly flowing out from the opening of the heat dissipation hole 17, and improve the dust and mist removing effect of the air flow to the detection camera 11.
As a preferred embodiment of the present utility model, the air guide member 18 is located between the opening of the heat dissipation hole 17 and the mounting case 15.
As a preferred embodiment of the utility model, the outer wall of the housing 1 is fitted with mounting wings 3.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The utility model provides an air-cooled flame-proof type fire detector, includes casing (1), and the one end opening part movable mounting of casing (1) has lens installation lid (2), is provided with lens (12) on lens installation lid (2), the outer wall of casing (1) is provided with first temperature sensor (4) for monitor casing (1) outside temperature, the outer wall of casing (1) is provided with high temperature resistant cable (5), its characterized in that, the internally mounted of casing (1) has installation casing (15), and the internally mounted of installation casing (15) has detector body (9);
a perforation (16) is formed in one end, close to the lens mounting cover (2), of the mounting shell (15), and a detection camera (11) is arranged on one side, close to the opening of the perforation (16), of the detector body (9) and is used for detecting fire conditions;
a heat dissipation cavity (10) is formed between the outer wall of the installation shell (15) and the inner wall of the shell (1), a vortex tube (7) is installed on one side wall of the shell (1), a vortex tube vortex chamber (6) is formed at one end, close to the shell (1), of the vortex tube (7), a compressed air inlet end (14) is formed at the side wall of the vortex tube vortex chamber (6), a hot air discharge end (13) is formed at one end, far away from the shell (1), of the vortex tube (7), and a cold air discharge end (8) is formed at one end, extending to the inside of the heat dissipation cavity (10), of the vortex tube (7);
the side wall of the lens mounting cover (2) is provided with a heat dissipation hole (17);
the circumference inner wall of the lens mounting cover (2) is obliquely arranged and is used for guiding the gas flowing in the heat dissipation cavity (10) to the side face of the lens (12).
2. An air-cooled flameproof fire detector according to claim 1, characterized in that the inner wall of the installation housing (15) is provided with a second temperature sensor (19) for monitoring the temperature in the installation housing (15).
3. An air-cooled flameproof fire detector according to claim 2, characterized in that the circumferential inner wall of the lens mounting cover (2) is provided with an air guiding component (18) with an annular structure, and the side wall of the air guiding component (18) is arranged in an inclined manner and is used for guiding the air flow flowing to the side surface of the lens mounting cover (2) in the heat dissipation cavity (10).
4. A flame-proof type fire detector according to claim 3, characterized in that the air guiding member (18) is located between the opening of the heat dissipating hole (17) and the mounting housing (15).
5. An air-cooled flameproof fire detector according to claim 4, characterized in that the outer wall of the housing (1) is provided with mounting flanks (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322246530.1U CN220584753U (en) | 2023-08-21 | 2023-08-21 | Air-cooled flame-proof type fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322246530.1U CN220584753U (en) | 2023-08-21 | 2023-08-21 | Air-cooled flame-proof type fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220584753U true CN220584753U (en) | 2024-03-12 |
Family
ID=90109749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322246530.1U Active CN220584753U (en) | 2023-08-21 | 2023-08-21 | Air-cooled flame-proof type fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220584753U (en) |
-
2023
- 2023-08-21 CN CN202322246530.1U patent/CN220584753U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |