CN108564759B - Flue gas labyrinth cover - Google Patents
Flue gas labyrinth cover Download PDFInfo
- Publication number
- CN108564759B CN108564759B CN201810532980.8A CN201810532980A CN108564759B CN 108564759 B CN108564759 B CN 108564759B CN 201810532980 A CN201810532980 A CN 201810532980A CN 108564759 B CN108564759 B CN 108564759B
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- CN
- China
- Prior art keywords
- plane
- folded plate
- labyrinth cover
- flue gas
- shell
- 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.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 17
- 239000003546 flue gas Substances 0.000 title claims description 17
- 239000000779 smoke Substances 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000004062 sedimentation Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 230000001442 anti-mosquito 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a smoke labyrinth cover which is used in cooperation with a labyrinth and comprises a cylindrical shell, wherein a plurality of rows of through holes are formed in the side wall of the shell along the circumferential direction, transverse airflow guide rings are arranged between two adjacent rows of through holes on the outer wall of the shell, a plurality of longitudinal airflow guide posts uniformly arranged along the circumferential direction are arranged on the inner wall of the shell, a plurality of shielding gratings uniformly arranged along the circumferential direction and mutually spaced apart are arranged in the shell, and an annular sedimentation area is further arranged on the bottom plate of the shell. The labyrinth cover has the advantages of reasonable structure, high detection sensitivity, strong dust resistance and convenience in smoke entering or drifting.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a smoke labyrinth cover.
Background
The labyrinth cover is used for covering the labyrinth in the smoke detector, smoke enters the labyrinth through the labyrinth cover, the structure of the labyrinth cover determines the smoothness of the smoke entering the labyrinth, the internal structure of the conventional labyrinth cover at the present stage is unreasonable in design, and the smoke entering and drifting out are blocked, so that false alarm of the smoke detector is caused, the inspiration degree of the response of the detector is reduced, and the dust resistance of the conventional labyrinth cover is weak.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. In view of this, the present invention needs to provide a smoke labyrinth cover with reasonable structure, high detection sensitivity, high dust resistance and convenient smoke entry or exit.
The invention provides a smoke labyrinth cover which is used in cooperation with a labyrinth, and comprises a cylindrical shell, wherein a plurality of rows of through holes are formed in the side wall of the shell along the circumferential direction, transverse airflow guide rings are arranged between two adjacent rows of through holes on the outer wall of the shell, a plurality of longitudinal airflow guide posts uniformly arranged along the circumferential direction are arranged on the inner wall of the shell, a plurality of shielding gratings uniformly arranged along the circumferential direction and mutually spaced apart are arranged in the shell, and an annular sedimentation area is further arranged on the bottom plate of the shell.
According to one embodiment of the invention, the shielding grating is a folded plate structure formed by connecting a first folded plate and a second folded plate at an angle, wherein the first folded plate is close to the longitudinal airflow guiding post, the second folded plate is close to the annular settlement area, a first plane and a second plane of the first folded plate are mutually 45 degrees to form a sharp angle design, a second plane and a third plane of the first folded plate are mutually 135 degrees, a fourth plane and a fifth plane of the second folded plate are mutually 45 degrees to form a sharp angle design, and a fifth plane and a sixth plane of the second folded plate are mutually 135 degrees.
According to one embodiment of the invention, the third plane of the first flap and the sixth plane of the second flap form an angle in the range of 88-92 degrees.
According to one embodiment of the present invention, the vertical height of the shielding gratings is a certain distance higher than the height of the housing, wherein the second plane and the fifth plane in each shielding grating are all parallel to each other, and the end extension line of the fifth plane of each shielding grating intersects with the center of the circumference surrounded by the shielding gratings.
According to one embodiment of the invention, the cross section of the transverse airflow guide ring is an isosceles trapezoid, and the bottom edge of the shorter side of the isosceles trapezoid is radially arranged outwards from the shell.
According to one embodiment of the invention, the cross section of the longitudinal air flow guiding post is an isosceles triangle, and one tip of the isosceles triangle is arranged towards the center of the housing.
According to one embodiment of the invention, the transverse airflow guide ring and the longitudinal airflow guide column uniformly divide the through holes into frame-shaped air inlet holes or air outlet holes with consistent shapes.
According to one embodiment of the invention, the maximum aperture distance of the inlet or outlet holes is less than 1mm.
According to one embodiment of the invention, the annular settlement area is formed by uniformly arranging a plurality of dustproof grooves into a circular ring shape and is arranged in the inner area of the shielding grating surrounding city.
According to one embodiment of the invention, the dust-proof groove is a V-shaped groove.
According to the flue gas labyrinth cover, the lateral airflow guide ring is arranged on the outer side of the through hole on the shell, and the plurality of longitudinal airflow guide posts which are uniformly arranged along the circumferential direction are arranged on the inner wall of the shell, wherein the lateral airflow guide ring and the longitudinal airflow guide posts uniformly divide the through hole into frame-shaped air inlet holes or air outlet holes with consistent shapes, the cross section of the lateral airflow guide ring is isosceles trapezoid, namely the extension lines of the two oppositely arranged guide surfaces intersect on one line, and the obstruction of the outer surface of the labyrinth cover to the airflow is minimized in the air inlet or air outlet process of the flue gas; further, the cross section of the longitudinal airflow guide post is isosceles triangle, so that the airflow can fly in or fly out more easily, and the smoke in the detector with reasonable structural design can enter more easily, so that the detector can detect the surrounding smoke change more easily, the response of the detector is more sensitive, and the detector can reduce the false alarm caused by smoking of people in the detection space of the detector due to the easy flying of the smoke.
According to the smoke labyrinth cover, the circumferentially arranged shielding gratings are arranged in the labyrinth cover, and through reasonable design of angles of the shielding grating structures, external ambient light is effectively prevented from entering the labyrinth to cause interference to a detector, on the other hand, the head end face and the tail end face of the shielding grating are both in sharp angle design, so that the obstruction to air flow is reduced, the detector is more sensitive, on the other hand, the bottom surface of the labyrinth cover is also provided with the dustproof groove with the V-shaped groove structure, naturally settled dust falls into the root of the groove under the action of self gravity, and a dust area at the position belongs to a blind area of the detector, so that the dust pollution resistance of the detector is improved.
Drawings
FIG. 1 is a schematic illustration of a smoke labyrinth cover according to one embodiment of the invention.
FIG. 2 is a top view of a flue gas labyrinth cover according to one embodiment of the present invention.
Fig. 3 is a schematic view of the structure of a shielding grating of a smoke labyrinth cover according to an embodiment of the invention.
Reference numerals: 100-a flue gas labyrinth cover; 1-a housing; 2-through holes; 3-a lateral air flow guide ring; 4-longitudinal airflow guiding column; 5-shielding grating; 6-an annular sedimentation zone; 51-a first flap; 52-a second flap; 61-dustproof groove; 511-a first plane; 512-a second plane; 513-a third plane; 514-a fourth plane; 515-a fifth plane; 516-sixth plane.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 and fig. 2, according to an embodiment of the present invention, a flue gas labyrinth cover 100 is used in cooperation with a labyrinth, and includes a cylindrical housing 1, a plurality of rows of through holes 2 are provided on a sidewall of the housing 1 along a circumferential direction, a plurality of transverse airflow guiding rings 3 are provided between two adjacent rows of through holes 2 on an outer wall of the housing 1, a plurality of longitudinal airflow guiding columns 4 are provided on an inner wall of the housing 1, the cross section of the transverse airflow guiding rings 3 is isosceles trapezoid, a bottom edge of a shorter side of the isosceles trapezoid is provided radially outwards along the housing 1, the cross section of the longitudinal airflow guiding columns 4 is isosceles triangle, a tip of the isosceles triangle is provided towards a center of the housing 1, a plurality of shielding gratings 5 are provided in the housing 1, the shielding gratings are uniformly provided along the circumferential direction and are arranged at intervals, and an annular sedimentation area 6 is further provided on a bottom plate of the housing 1.
The invention relates to a flue gas labyrinth cover 100, wherein a transverse airflow guide ring 3 is arranged on the outer side of a through hole 2 on a shell 1, and a plurality of longitudinal airflow guide posts 4 which are uniformly arranged along the circumferential direction are arranged on the inner wall of the shell 1, wherein the transverse airflow guide ring 3 and the longitudinal airflow guide posts 4 uniformly divide the through hole 2 into frame-shaped air inlet holes or air outlet holes with consistent shapes, the cross section of the transverse airflow guide ring 3 is isosceles trapezoid, namely the extension lines of two oppositely arranged guide surfaces are intersected on a line, and the obstruction of the outer surface of the labyrinth cover 100 to the airflow is minimized in the air inlet or air outlet process of flue gas; further, the cross section of the longitudinal airflow guide post 4 is isosceles triangle, so that the air flow can flow in or out more easily, and the smoke in the detector with reasonable structural design can enter more easily, so that the detector can detect the surrounding smoke change more easily, the response of the detector is more sensitive, and the smoke can flow easily, so that the detector can reduce the false alarm of the detector caused by smoking of people in the detection space of the detector.
As shown in fig. 2 and 3, the shielding grating 5 is a folded plate structure formed by connecting the first folded plate 51 and the second folded plate 52 at an angle, wherein the first folded plate 51 is close to the longitudinal air flow guiding post 4, the second folded plate 52 is close to the annular settlement area 6, the first plane 511 and the second plane 512 of the first folded plate 51 are mutually 45 degrees to form a sharp angle design so as to reduce the obstruction to the air flow, the second plane 512 and the third plane 513 of the first folded plate 51 are mutually 135 degrees, the fourth plane 514 and the fifth plane 515 of the second folded plate 52 are mutually 45 degrees to form a sharp angle design so as to reduce the obstruction to the air flow, the fifth plane 515 and the sixth plane 516 of the second folded plate 52 are mutually 135 degrees, the third plane 513 of the first folded plate 51 and the sixth plane 516 of the second folded plate 52 are preferably 90 degrees, the vertical height of the shielding grating 5 is higher than the height of the housing 1 by a certain distance, wherein the second plane 512 and the fifth plane 512 of each shielding grating 5 are mutually parallel to each other, and the fifth plane 515 of the fifth plane of the shielding grating 5 is mutually 135 degrees to intersect with the center of the fifth plane 515 of the shielding grating 5.
According to the flue gas labyrinth cover 100, the shielding gratings 5 are circumferentially arranged in the labyrinth cover 100, and the interference of external ambient light to the detector caused by the entrance of the external ambient light into the interior of the labyrinth is effectively prevented by reasonably designing the angles of the shielding gratings 5, and on the other hand, the head end surface and the tail end surface of each shielding grating 5 are designed to be sharp angles, so that the obstruction to air flow is reduced, and the sensitivity of the detector is further improved.
As shown in fig. 1, the transverse airflow guide ring 3 and the longitudinal airflow guide column 4 uniformly divide the through holes 2 into frame-shaped air inlet holes or air outlet holes with consistent shapes, so as to effectively prevent mosquitoes from entering the labyrinth during the use process of the detector to damage or misinformation the detector, and the maximum aperture distance of the air inlet holes or the air outlet holes is smaller than 1mm, so that the labyrinth cover 100 has an excellent anti-mosquito effect.
As shown in fig. 1 and 2, the annular sedimentation area 6 is a plurality of dust-proof grooves 61 uniformly arranged in a circular ring shape and arranged in an inner area of the surrounding area of the shielding grating 5, wherein the dust-proof grooves 61 are V-shaped grooves, naturally sedimentated dust can sink into the root of the grooves under the action of self gravity, and the dust area at the position belongs to a dead zone of the detector, so that the dust pollution resistance of the detector is improved.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. The utility model provides a flue gas labyrinth cover for use with the maze cooperation, includes cylindrical casing, its characterized in that, the lateral wall of casing is equipped with the multiseriate through-hole along circumference direction, on the casing outer wall adjacent two rows all be equipped with horizontal air current guide ring between the through-hole, be equipped with a plurality of vertical air current guide posts that set up along circumference direction on the inner wall of casing, be equipped with a plurality of shielding grids that set up along circumference direction evenly and keep apart each other and arrange each other in the casing, still be equipped with annular subsidence area on the bottom plate of casing, shielding grids are the folded plate structure that first folded plate and second folded plate become by angle connection, and first folded plate is close to vertical air current guide post, and the second folded plate is close to annular subsidence area, and the first plane of first folded plate and second plane each other become 45 degrees closed angle, and the second plane of first folded plate and third plane each other become 135 degrees closed angle, and the fourth plane of second folded plate and fifth plane each other become 135 degrees closed angle, and the fifth plane of second folded plate and the mutual angle that the second folded plate are formed between 88 degrees, and the second plane of each other, and the equal parallel plane of each of the second folded plate and the second folded plate is high.
2. The smoke labyrinth cover of claim 1, wherein said third plane of said first flap is at an angle of 90 degrees to said sixth plane of said second flap.
3. The flue gas labyrinth cover as claimed in claim 1, wherein the cross section of the lateral air flow guide ring is isosceles trapezoid, and the bottom edge of the shorter side of the isosceles trapezoid is radially arranged outwards from the housing.
4. The flue gas labyrinth cover of claim 1, wherein the cross section of the longitudinal air flow guiding post is isosceles triangle, and one tip of the isosceles triangle is disposed toward the center of the housing.
5. The flue gas labyrinth cover as recited in claim 1, wherein said transverse airflow guide ring and said longitudinal airflow guide post divide said through holes evenly into uniformly shaped, frame-like inlet or outlet holes.
6. The flue gas labyrinth cover of claim 5, wherein the maximum aperture distance of the inlet or outlet holes is less than 1mm.
7. The flue gas labyrinth cover as recited in claim 1, wherein the annular settling zone is a plurality of dust-proof grooves uniformly arranged in a circular ring shape and disposed in an inner region of the shielding grating enclosure.
8. The flue gas labyrinth cover of claim 7, wherein said dust grooves are V-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532980.8A CN108564759B (en) | 2018-05-29 | 2018-05-29 | Flue gas labyrinth cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532980.8A CN108564759B (en) | 2018-05-29 | 2018-05-29 | Flue gas labyrinth cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108564759A CN108564759A (en) | 2018-09-21 |
| CN108564759B true CN108564759B (en) | 2024-02-06 |
Family
ID=63540327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810532980.8A Active CN108564759B (en) | 2018-05-29 | 2018-05-29 | Flue gas labyrinth cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108564759B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166268B (en) * | 2018-10-19 | 2020-10-27 | 浙江巨感物联网科技有限公司 | A advance cigarette maze and smoke detector for smoke detector |
| CN109509321A (en) * | 2018-12-21 | 2019-03-22 | 天津新亚精诚科技有限公司 | A kind of novel smoke detector |
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|---|---|---|---|---|
| CN2884361Y (en) * | 2006-03-30 | 2007-03-28 | 王殊 | Labyrinth type smoke detector |
| CN200965720Y (en) * | 2006-11-14 | 2007-10-24 | 王殊 | Backward scatter optical dark chamber |
| JP2010044535A (en) * | 2008-08-11 | 2010-02-25 | Kyushu Hitachi Maxell Ltd | Smoke detector |
| TW201237811A (en) * | 2011-03-11 | 2012-09-16 | Panasonic Corp | Smoke detector |
| CN105517391A (en) * | 2016-01-20 | 2016-04-20 | 北大青鸟环宇消防设备股份有限公司 | Waterproof structure of firefighting equipment mounted on wall body |
| CN205751126U (en) * | 2016-05-17 | 2016-11-30 | 四川赛科安全技术有限公司 | A kind of sense cigarette labyrinth |
| CN205786299U (en) * | 2016-05-18 | 2016-12-07 | 宁波科赛迪电子科技有限公司 | A kind of labyrinth of smoke alarm |
| CN106228740A (en) * | 2016-08-15 | 2016-12-14 | 许昌初心智能电气科技有限公司 | A kind of smoke alarm labyrinth and use the smoke alarm in this labyrinth |
| CN206121382U (en) * | 2016-09-28 | 2017-04-26 | 武汉君正科技有限公司 | No pump labyrinth flue gas water mist dust removal device |
| CN206224741U (en) * | 2016-11-17 | 2017-06-06 | 天津航联迪克科技有限公司 | Optical detector of fire smoke labyrinth |
| CN208367874U (en) * | 2018-05-29 | 2019-01-11 | 北大青鸟环宇消防设备股份有限公司 | Flue gas labyrinth |
-
2018
- 2018-05-29 CN CN201810532980.8A patent/CN108564759B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884361Y (en) * | 2006-03-30 | 2007-03-28 | 王殊 | Labyrinth type smoke detector |
| CN200965720Y (en) * | 2006-11-14 | 2007-10-24 | 王殊 | Backward scatter optical dark chamber |
| JP2010044535A (en) * | 2008-08-11 | 2010-02-25 | Kyushu Hitachi Maxell Ltd | Smoke detector |
| TW201237811A (en) * | 2011-03-11 | 2012-09-16 | Panasonic Corp | Smoke detector |
| CN105517391A (en) * | 2016-01-20 | 2016-04-20 | 北大青鸟环宇消防设备股份有限公司 | Waterproof structure of firefighting equipment mounted on wall body |
| CN205751126U (en) * | 2016-05-17 | 2016-11-30 | 四川赛科安全技术有限公司 | A kind of sense cigarette labyrinth |
| CN205786299U (en) * | 2016-05-18 | 2016-12-07 | 宁波科赛迪电子科技有限公司 | A kind of labyrinth of smoke alarm |
| CN106228740A (en) * | 2016-08-15 | 2016-12-14 | 许昌初心智能电气科技有限公司 | A kind of smoke alarm labyrinth and use the smoke alarm in this labyrinth |
| CN206121382U (en) * | 2016-09-28 | 2017-04-26 | 武汉君正科技有限公司 | No pump labyrinth flue gas water mist dust removal device |
| CN206224741U (en) * | 2016-11-17 | 2017-06-06 | 天津航联迪克科技有限公司 | Optical detector of fire smoke labyrinth |
| CN208367874U (en) * | 2018-05-29 | 2019-01-11 | 北大青鸟环宇消防设备股份有限公司 | Flue gas labyrinth |
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| Publication number | Publication date |
|---|---|
| CN108564759A (en) | 2018-09-21 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100871, Beijing, Haidian District Cheng Fu Road No. 207, Beida Jade Bird building, block C, 2 Applicant after: Bluebird fire Co.,Ltd. Address before: 100871, Beijing, Haidian District Cheng Fu Road No. 207, Beida Jade Bird building, block C, 2 Applicant before: BEIDA JADE BIRD UNIVERSAL FIRE ALARM DEVICE Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 075600 Zhuolu Zhuoxia Road Industrial Park, Zhangjiakou City, Hebei Province Patentee after: Bluebird fire Co.,Ltd. Country or region after: China Address before: 100871 2 / F, block C, Beida Qingniao building, 207 Chengfu Road, Haidian District, Beijing Patentee before: Bluebird fire Co.,Ltd. Country or region before: China |