CN112577681A - Vertical air duct leakage detection device and detection method thereof - Google Patents
Vertical air duct leakage detection device and detection method thereof Download PDFInfo
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- CN112577681A CN112577681A CN202011590161.2A CN202011590161A CN112577681A CN 112577681 A CN112577681 A CN 112577681A CN 202011590161 A CN202011590161 A CN 202011590161A CN 112577681 A CN112577681 A CN 112577681A
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
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Abstract
The invention relates to a vertical air duct light leakage detection device and a detection method thereof, wherein the detection device comprises the following steps: a frame body; the first roller is arranged at one end of the frame body; the guide groove is arranged at the other end of the frame body; the wire is wound on the first roller and penetrates through the guide groove; the light source is arranged at one end, close to the first roller, of the wire; when detecting, erect on the wind channel through the support body and make the light source hang and locate the middle part in the wind channel and the light source is located the wind channel, and then transfer the wire so that the light source moves down to the bottom in wind channel from the top in wind channel, and whether there is light to spill the wind channel through observing, with whether detect the light leak in wind channel, operating personnel need not to stretch into in the wind channel, can carry out receiving and releasing of wire outside the wind channel, the security of operation has been ensured, play direction and spacing effect to the wire through first gyro wheel and guide slot, what have avoided the wire has swayd indefinite problem receiving and releasing the in-process.
Description
Technical Field
The invention relates to the technical field of air duct detection, in particular to a vertical air duct leakage detection device and a detection method thereof.
Background
Air ducts are a system of ducts for air transport and distribution. The vertical curtain wall air duct takes the vertical keel as a main keel, is 630mm away from the building outer wall, and has a vertical length of 19.7 m. The air duct of the curtain wall is internally supported by a square steel keel, an aluminum plate is wrapped outside the keel, and the aluminum plates are sealed by silicone adhesive. The curtain air duct belongs to a ventilation air duct in functionality, is similar to a metal curtain wall in structure, and needs to be subjected to light leakage detection to ensure tight air tightness.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a vertical air duct light leakage detection device and a detection method thereof so as to solve the problems that the conventional outer wall air duct light leakage detection method has high operation risk, an unstable light source swings and a light leakage part cannot be accurately detected.
In order to achieve the above object, the present invention provides a vertical duct light leakage detection device, including:
a frame body;
the first roller is arranged at one end of the frame body;
the guide groove is arranged at the other end of the frame body;
the wire is wound on the first roller and penetrates through the guide groove; and
the light source is arranged at one end, close to the first roller, of the lead;
when the detection is carried out, the frame body is erected on the air duct, the light source is hung in the air duct and located in the middle of the air duct, then the wire is placed downwards, so that the light source moves downwards to the bottom of the air duct from the top of the air duct, and whether light leaks from the air duct is observed to detect whether the air duct leaks light.
The frame body is erected on the air duct, the light source is hung in the air duct and located in the middle of the air duct, the wires are lowered so that the light source can move downwards from the top of the air duct to the bottom of the air duct, an operator does not need to stretch into the air duct, the wires can be wound and unwound outside the air duct, operation safety is guaranteed, the wires are guided and limited through the first rollers and the guide grooves, the problem that the wires swing unstably in the winding and unwinding processes is avoided, the light source is located in the middle of the air duct by adjusting the placement position of the frame body, the light source can always descend gradually along the vertical direction of the initial position, and the light source is prevented from being damaged due to the fact that the light source touches the keel.
The vertical air duct light leakage detection device is further improved in that the frame body is of a square frame structure and comprises a first cross rod horizontally arranged at one end of the frame body;
the first roller is arranged in the middle of the first cross rod.
The vertical air duct light leakage detection device is further improved in that a part of the middle part of the first cross rod is bent towards the inside of the square frame structure to form a first limiting section, a first mounting section and a second limiting section, the arrangement direction of the first mounting section is the same as that of the rest part of the first cross rod, and the first limiting section and the second limiting section are perpendicular to the first mounting section;
the first roller is sleeved on the first mounting section;
the wire passes through the first limiting section and the second limiting section by bypassing the first roller.
The vertical air duct light leakage detection device is further improved in that the frame body further comprises a second cross rod which is arranged at the other end of the frame body and is parallel to the first cross rod;
and the middle part of the second cross bar is partially bent downwards to form a guide groove for the lead to pass through.
The vertical air duct light leakage detection device is further improved in that the frame body further comprises a second cross rod which is arranged at the other end of the frame body and is parallel to the first cross rod; and a second roller for supporting the wire is sleeved on the second cross rod.
The vertical air duct light leakage detection device is further improved in that a third cross rod positioned above the first roller and a rotating shaft sleeved on the third cross rod are horizontally arranged on the top surface of the frame body;
the wire is wound on the rotating shaft.
The vertical air duct light leakage detection device is further improved in that the air duct comprises a vertical channel and a bent end channel arranged at the top end of the vertical channel, and the end channel is communicated with the vertical channel;
through with the support body stretches into the tip passageway, and make the light source is located the middle part of vertical passageway, will the light source is followed the top of vertical passageway descends to the bottom of vertical passageway, and whether has light to spill through observing the wind channel, in order to detect whether the light leak in the wind channel.
The invention also provides a detection method of the vertical air duct light leakage detection device, which comprises the following steps:
the frame body is erected on the air duct, the light source is hung in the air duct, and the light source is located in the middle of the air duct;
and placing the conducting wire, enabling the light source to downwards move to the bottom of the air duct from the top of the air duct, and observing whether light leaks out of the air duct or not to detect whether the air duct leaks light or not.
The detection method of the vertical air duct light leakage detection device is further improved in that the frame body is of a square frame structure and comprises a first cross rod horizontally arranged at one end of the frame body, a part of the middle part of the first cross rod is bent towards the inside of the square frame structure to form a first limiting section, a first installation section and a second limiting section, the arrangement directions of the first installation section and the rest part of the first cross rod are the same, and the first limiting section and the second limiting section are perpendicular to the first installation section;
and the lead is wound around the first roller and then passes through the space between the first limiting section and the second limiting section.
Drawings
FIG. 1 is a schematic structural view of a vertical duct leakage detection device according to the present invention.
FIG. 2 is a schematic structural view of the vertical duct light leakage detection device of the present invention.
In the figure: the frame comprises a frame body-1, a first cross bar-11, a first limiting section-111, a second cross bar-12, a guide groove-121, a second limiting section-122, a third cross bar-13, a first roller-2, a second roller-3, a wire-4, a light source-5, a rotating shaft-6 and an air duct-7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a light leakage detection device for a vertical air duct, which is used for detecting whether an outer wall air duct leaks light or not. The air duct comprises a frame body, a first roller, a guide groove, a wire and a light source, wherein the frame body is erected on the air duct, the light source is hung in the air duct and is positioned in the middle of the air duct, the wire is further placed downwards so that the light source can move downwards from the top of the air duct to the bottom of the air duct, an operator can receive and release the wire outside the air duct without stretching into the air duct, the operation safety is guaranteed, the wire is guided and limited by the first roller and the guide groove, the problem that the wire is not prone to swinging in the receiving and releasing process is avoided, the light source is positioned in the middle of the air duct by adjusting the placing position of the frame body, the light source can always gradually descend along the vertical direction of the initial position, and the light source is prevented from being damaged due to the.
The vertical air duct leakage detection device of the invention is explained below with reference to the accompanying drawings.
Referring to fig. 1 and 2, in the present embodiment, a vertical duct light leakage detection device includes: support body 1, first gyro wheel 2, guide slot 121, wire 4 and light source 5, the one end of support body 1 is located to first gyro wheel 2, the other end of support body 1 is located to guide slot 121, wire 4 is around locating on first gyro wheel 2 and passing guide slot 121, light source 5 locates the one end that is close to first gyro wheel 2 on wire 4, when detecting, erect on wind channel 7 and make light source 5 hang and locate in wind channel 7 and light source 5 is located the middle part of wind channel 7 through support body 1, and then transfer wire 4 so that light source 5 moves down to the bottom of wind channel 7 from the top of wind channel 7, and whether there is light to spill wind channel 7 through the observation, in order to detect whether light leak in wind channel 7.
In this embodiment, the detection device is erected on the air duct 7 through the frame body 1 and enables the light source 5 to be hung in the air duct 7 and the light source 5 is located in the middle of the air duct 7, and then the wire 4 is lowered so that the light source 5 moves downwards from the top of the air duct 7 to the bottom of the air duct 7, an operator does not need to stretch into the air duct 7, the wire 4 can be collected and placed outside the air duct 7, the operation safety is guaranteed, the wire 4 is guided and limited through the first roller 2 and the guide groove 121, the problem that the wire 4 swings irregularly in the collection and placement process is avoided, the light source 5 is located in the middle of the air duct 7 through adjusting the placement position of the frame body 1, the light source 5 can descend gradually along the vertical direction of the initial position all the time, and further the light source 5 is prevented from being damaged due to collision with a keel.
Referring to fig. 1, further, the frame body 1 is a square frame structure and includes a first cross rod 11 horizontally disposed at one end of the frame body 1, and the first roller 2 is installed in the middle of the first cross rod 11, so that the first roller 2 is adjusted to the middle of the air duct 7 when the frame body 1 is conveniently adjusted.
Referring to fig. 1, further, a part of the middle portion of the first cross bar 11 is bent toward the inside of the square frame structure to form a first limiting section 111, a first mounting section and a second limiting section, the first mounting section and the rest of the first cross bar 11 are arranged in the same direction, the first limiting section and the second limiting section are perpendicular to the first mounting section, the first roller 2 is sleeved on the first mounting section, and the wire 4 passes through the space between the first limiting section 111 and the second limiting section by bypassing the first roller 2. The lead 4 is guided and limited at one end of the frame body 1 by the first limiting section 111 and the second limiting section.
Referring to fig. 1, further, the frame body 1 further includes a second cross bar 12 disposed at the other end of the frame body 1 and parallel to the first cross bar 11, a portion of the middle of the second cross bar 12 is bent downward to form a guide groove 121 for the wire 4 to pass through, and the guide groove 121 guides and limits the wire 4 at the other end of the frame body 1.
Referring to fig. 1, further, the frame body 1 further includes a second cross rod 12 disposed at the other end of the frame body 1 and parallel to the first cross rod 11, the second cross rod 12 is sleeved with a second roller 3 for supporting the wire 4, and the second roller 3 is disposed to enable the wire 4 to slide freely in the guide groove 121, so as to reduce the friction resistance.
Referring to fig. 1, preferably, a third cross bar 13 located above the first roller 2 and a rotating shaft 6 sleeved on the third cross bar 13 are horizontally disposed on the top surface of the frame body 1, and the wire 4 is wound on the rotating shaft 6. The guide effect is achieved on the wire 4 through the rotating shaft 6, the rotating shaft 6 and the first idler wheel 2 are located in the same vertical plane, so that the part of the wire 4 in the air duct 7 is in a vertical state, and the wire 4 is prevented from swinging due to inclination.
Referring to fig. 1, the first cross bar 11, the second cross bar 12 and the third cross bar 13 are preferably circular steel tubes.
In this embodiment, the air duct 7 includes a vertical channel in a vertical shape and an end channel which is arranged at the top end of the vertical channel and is in a bent shape, and the end channel is communicated with the vertical channel;
through stretching into support body 1 tip passageway to make light source 5 be located the middle part of vertical passageway, descend light source 5 to the bottom of vertical passageway from the top of vertical passageway, and whether have light to spill wind channel 7 through observing, with whether detect the light leak in wind channel 7.
The following describes the operation of the vertical duct leakage detection device of the present invention.
Erect support body 1 on wind channel 7, let light source 5 hang and locate in wind channel 7 and let light source 5 be located the middle part of wind channel 7, transfer the wire, let light source 5 from the top of wind channel 7 the bottom of air channel 7 of lapse to whether there is light to spill wind channel 7 through the observation, with whether detect the light leak in wind channel 7.
The invention also provides a detection method of the vertical air duct light leakage detection device, which comprises the following steps:
the frame body 1 is erected on the air duct 7, the light source 5 is hung in the air duct 7, and the light source 5 is located in the middle of the air duct 7.
Further, support body 1 is the square frame structure and includes that the first horizontal pole 11 of 1 one end of support body is located to the level, and there is part in the middle part of first horizontal pole 11 to the inside bending type of square frame structure to form first spacing section 111, first installation section and the spacing section of second, and first installation section is the same with the direction that sets up of the rest of first horizontal pole 11, the first installation section of first spacing section and the spacing section perpendicular to of second.
The lead 4 is wound around the first roller 2 and then passes through the space between the first limiting section 111 and the second limiting section.
By adopting the technical scheme, the invention has the following beneficial effects:
the frame body is erected on the air duct, the light source is hung in the air duct and located in the middle of the air duct, the wires are lowered so that the light source can move downwards from the top of the air duct to the bottom of the air duct, an operator does not need to stretch into the air duct, the wires can be wound and unwound outside the air duct, operation safety is guaranteed, the wires are guided and limited through the first rollers and the guide grooves, the problem that the wires swing unstably in the winding and unwinding processes is avoided, the light source is located in the middle of the air duct by adjusting the placement position of the frame body, the light source can always descend gradually along the vertical direction of the initial position, and the light source is prevented from being damaged due to the fact that the light source touches the keel. The wire is guided and limited at one end of the frame body through the first limiting section and the second limiting section, and the wire is guided and limited at the other end of the frame body through the guide groove.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Claims (9)
1. The utility model provides a vertical wind channel light leak detection device which characterized in that includes:
a frame body;
the first roller is arranged at one end of the frame body;
the guide groove is arranged at the other end of the frame body;
the wire is wound on the first roller and penetrates through the guide groove; and
the light source is arranged at one end, close to the first roller, of the lead;
when the detection is carried out, the frame body is erected on the air duct, the light source is hung in the air duct and located in the middle of the air duct, then the wire is placed downwards, so that the light source moves downwards to the bottom of the air duct from the top of the air duct, and whether light leaks from the air duct is observed to detect whether the air duct leaks light.
2. The vertical duct light leak detection device according to claim 1, wherein the frame body has a square frame structure and includes a first cross bar horizontally disposed at one end of the frame body;
the first roller is arranged in the middle of the first cross rod.
3. The vertical duct light leak detection device according to claim 2, wherein a portion of the middle of the first cross bar is bent toward the inside of the square frame structure to form a first limiting section, a first mounting section, and a second limiting section, the first mounting section and the rest of the first cross bar are arranged in the same direction, and the first limiting section and the second limiting section are perpendicular to the first mounting section;
the first roller is sleeved on the first mounting section;
the wire passes through the first limiting section and the second limiting section by bypassing the first roller.
4. The vertical duct light leak detection device according to claim 2, wherein the frame further comprises a second cross bar disposed at the other end of the frame and parallel to the first cross bar;
and the middle part of the second cross bar is partially bent downwards to form a guide groove for the lead to pass through.
5. The vertical duct light leak detection device according to claim 2, wherein the frame further comprises a second cross bar disposed at the other end of the frame and parallel to the first cross bar; and a second roller for supporting the wire is sleeved on the second cross rod.
6. The vertical duct light leak detection device according to claim 2, wherein a third cross bar located above the first roller and a rotating shaft sleeved on the third cross bar are horizontally arranged on the top surface of the frame body;
the wire is wound on the rotating shaft.
7. The apparatus according to claim 1, wherein the air duct comprises a vertical channel and a bent end channel, the vertical channel is disposed at a top end of the vertical channel, and the end channel is communicated with the vertical channel;
through with the support body stretches into the tip passageway, and make the light source is located the middle part of vertical passageway, will the light source is followed the top of vertical passageway descends to the bottom of vertical passageway, and whether has light to spill through observing the wind channel, in order to detect whether the light leak in the wind channel.
8. The method for detecting the light leakage detection device of the vertical wind channel according to claim 1, comprising the steps of:
the frame body is erected on the air duct, the light source is hung in the air duct, and the light source is located in the middle of the air duct;
and placing the conducting wire, enabling the light source to downwards move to the bottom of the air duct from the top of the air duct, and observing whether light leaks out of the air duct or not to detect whether the air duct leaks light or not.
9. The detection method of the vertical duct light leakage detection device according to claim 8, wherein the frame body is of a square frame structure and comprises a first cross bar horizontally arranged at one end of the frame body, a part of the middle part of the first cross bar is bent towards the inside of the square frame structure to form a first limiting section, a first mounting section and a second limiting section, the first mounting section and the rest part of the first cross bar are arranged in the same direction, and the first limiting section and the second limiting section are perpendicular to the first mounting section;
and the lead is wound around the first roller and then passes through the space between the first limiting section and the second limiting section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011590161.2A CN112577681A (en) | 2020-12-29 | 2020-12-29 | Vertical air duct leakage detection device and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011590161.2A CN112577681A (en) | 2020-12-29 | 2020-12-29 | Vertical air duct leakage detection device and detection method thereof |
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| CN112577681A true CN112577681A (en) | 2021-03-30 |
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| CN202011590161.2A Pending CN112577681A (en) | 2020-12-29 | 2020-12-29 | Vertical air duct leakage detection device and detection method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983736A (en) * | 1998-07-02 | 1999-11-16 | Brooklyn Union | Method and apparatus for tracking the flow of liquids in a gas pipe |
| CN103398296A (en) * | 2013-07-29 | 2013-11-20 | 中国五冶集团有限公司 | Air pipe tightness test method, light leak test system using air pipe tightness test method, and wind pressure test system using air pipe tightness test method |
| CN206038256U (en) * | 2016-08-31 | 2017-03-22 | 江苏建科建设监理有限公司 | Manage device of measuring tuber pipe light leak |
| CN106679899A (en) * | 2016-11-25 | 2017-05-17 | 中国建筑第八工程局有限公司 | Air duct tightness testing method |
| US20190025154A1 (en) * | 2017-07-19 | 2019-01-24 | John Johnson | Duct leakage detection system and method |
| CN209460426U (en) * | 2019-03-28 | 2019-10-01 | 宜昌创源中新光电科技有限公司 | A kind of ocean Electro-Optical Sensor Set |
| CN209484290U (en) * | 2019-01-07 | 2019-10-11 | 广东天创同工大数据应用有限公司 | A kind of air hose leakage detection device |
| CN110967153A (en) * | 2019-12-04 | 2020-04-07 | 北京无线电计量测试研究所 | Automatic inspection system and method for gas lock well |
| CN212134584U (en) * | 2020-05-29 | 2020-12-11 | 福建兴鼎辉检测技术有限公司 | Pipeline detection sonar equipment convenient to operation |
-
2020
- 2020-12-29 CN CN202011590161.2A patent/CN112577681A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983736A (en) * | 1998-07-02 | 1999-11-16 | Brooklyn Union | Method and apparatus for tracking the flow of liquids in a gas pipe |
| CN103398296A (en) * | 2013-07-29 | 2013-11-20 | 中国五冶集团有限公司 | Air pipe tightness test method, light leak test system using air pipe tightness test method, and wind pressure test system using air pipe tightness test method |
| CN206038256U (en) * | 2016-08-31 | 2017-03-22 | 江苏建科建设监理有限公司 | Manage device of measuring tuber pipe light leak |
| CN106679899A (en) * | 2016-11-25 | 2017-05-17 | 中国建筑第八工程局有限公司 | Air duct tightness testing method |
| US20190025154A1 (en) * | 2017-07-19 | 2019-01-24 | John Johnson | Duct leakage detection system and method |
| CN209484290U (en) * | 2019-01-07 | 2019-10-11 | 广东天创同工大数据应用有限公司 | A kind of air hose leakage detection device |
| CN209460426U (en) * | 2019-03-28 | 2019-10-01 | 宜昌创源中新光电科技有限公司 | A kind of ocean Electro-Optical Sensor Set |
| CN110967153A (en) * | 2019-12-04 | 2020-04-07 | 北京无线电计量测试研究所 | Automatic inspection system and method for gas lock well |
| CN212134584U (en) * | 2020-05-29 | 2020-12-11 | 福建兴鼎辉检测技术有限公司 | Pipeline detection sonar equipment convenient to operation |
Non-Patent Citations (1)
| Title |
|---|
| 汪曼济 等: "风管的漏光法检测与漏风量测试", 《洁净与空调技术》 * |
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Application publication date: 20210330 |