CN219694460U - Curtain gas tightness detection device - Google Patents
Curtain gas tightness detection device Download PDFInfo
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- CN219694460U CN219694460U CN202320102329.3U CN202320102329U CN219694460U CN 219694460 U CN219694460 U CN 219694460U CN 202320102329 U CN202320102329 U CN 202320102329U CN 219694460 U CN219694460 U CN 219694460U
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- detection device
- curtain wall
- air flow
- tightness detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 230000006837 decompression Effects 0.000 claims abstract description 31
- 238000000605 extraction Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000013022 venting Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a curtain wall air tightness detection device, which is characterized in that: comprises a decompression box and a sealing cover; the sealing cover is assembled at the bottom of the decompression box and is communicated with the decompression box, rubber strips are circumferentially arranged at the bottom of the sealing cover, and an instrument panel is arranged on the sealing cover; the decompression box comprises a box body, a gas leakage cavity is formed in the box body, a spring is arranged in the gas leakage cavity, one end of the spring is propped against the bottom of the gas leakage cavity, the other end of the spring is connected with a piston, a gas extraction core pipe is connected to the piston, the gas extraction core pipe extends out of the top of the box body, and a pressing handle is arranged on the gas extraction core pipe; the rubber strip component has certain elasticity, and can ensure that the decompression box has better sealing effect when being communicated with the sealing cover.
Description
Technical Field
The utility model relates to the technical field of curtain wall detection, in particular to a curtain wall air tightness detection device.
Background
The building curtain wall is a light wall body with decorative effect, which is commonly used in modern large and high-rise buildings, and consists of a structural frame and embedded plates, and does not bear the load and action of a main structure.
When the existing air tightness detection device detects the curtain wall, a user needs to drive the curtain wall needing to be detected to move through more time, so that the curtain wall moves to the air tightness detection device to detect, and the air tightness detection device is inconvenient to carry, meanwhile, the detection efficiency is reduced, and inconvenience is brought to detection.
In view of the above-described problems, improvements are needed.
Disclosure of Invention
In order to overcome the defects in the prior art, the curtain wall air tightness detection device is simple in structure, portable to operate and high in detection efficiency.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme that the curtain wall air tightness detection device is characterized in that: comprises a decompression box and a sealing cover; the sealing cover is assembled at the bottom of the decompression box and is communicated with the decompression box, rubber strips are circumferentially arranged at the bottom of the sealing cover, and an instrument panel is arranged on the sealing cover; the decompression box comprises a box body, a gas leakage cavity is formed in the box body, a spring is arranged in the gas leakage cavity, one end of the spring abuts against the bottom of the gas leakage cavity, the other end of the spring is connected with a piston, an air extraction core tube is connected to the piston, the air extraction core tube extends out of the top of the box body, and a pressing handle is arranged on the air extraction core tube.
As a preferable scheme of the utility model, a first sealing ring is arranged at the joint of the air extraction core pipe and the box body.
As a preferable scheme of the utility model, an exhaust pipe is formed in the middle of the exhaust core pipe, and a first air valve and a second air valve are arranged at the bottom of the exhaust pipe.
As a preferable scheme of the utility model, an air flow channel is formed on the periphery of the side wall of the box body, and the top of the air flow channel is communicated with a pumping cavity, wherein the pumping cavity is a region between the piston and the top of the box body.
As a preferred embodiment of the present utility model, the end of the piston is provided with a second seal ring.
As a preferable scheme of the utility model, a first air flow meter and a second air flow meter are respectively arranged at two sides of the air flow channel, and a third air valve and a fourth air valve are respectively arranged at the bottoms of the first air flow meter and the second air flow meter; the third air valve and the fourth air valve are assembled in the air flow channel.
As a preferable scheme of the utility model, the air flow channel is a channel between a plurality of adjacent steel sheets, the plurality of steel sheets are distributed at equal intervals, and the plurality of steel sheets are fixedly connected with the box body and integrally formed.
As a preferable scheme of the utility model, the utility model also comprises a pressure supply assembly; the pressure supply assembly comprises an air pump arranged outside the sealing cover and an air extraction conduit connected between the air pump and the sealing cover, a fifth air valve is arranged in the sealing cover, and the air extraction conduit is communicated with the fifth air valve.
As a preferable mode of the utility model, the fifth air valve is connected with a third air flow meter, and the third air flow meter is assembled on the air suction duct.
As a preferable scheme of the utility model, the pressure gauge and the differential pressure gauge are arranged in the instrument panel, and the instrument panel surface panel can display measurement data of the pressure gauge, the differential pressure gauge, the first air flow meter, the second air flow meter and the third air flow meter; the manometer measures the air pressure in the decompression tank.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model has simple structure and simple and convenient operation, and can safely detect the air tightness of the building curtain wall.
2. The utility model is portable in operation, and the manual air suction function can be used at the position inconvenient to carry the air suction pump.
3. The utility model has ingenious design, only adopts negative pressure detection for portable operation, and the detection device can adsorb the surface of the curtain wall unit to be detected after the pressure of the decompression box is reduced, and other fixing measures are not needed.
4. The rubber strip component has certain elasticity, and can ensure that the decompression box has better sealing effect when being communicated with the sealing cover.
Drawings
FIG. 1 is a schematic view of a pressure reducing tank in an embodiment of the utility model;
FIG. 2 is a schematic structural view of a curtain wall air tightness detection device in an embodiment of the utility model;
reference numerals: the air pump comprises a sealing cover 1, a decompression box 2, an instrument panel 3, an exhaust pipe 4, a second sealing ring 5, a grip 6, an air pump 10, a rubber strip 11, an exhaust duct 12, a fifth air valve 13, a box body 20, an exhaust cavity 21, a spring 22, a piston 23, an exhaust core tube 24, a pressing handle 25, an air flow channel 26, a first sealing ring 27, an exhaust cavity 28, a steel sheet 29, a first air valve 40, a second air valve 41, a third air valve 42, a fourth air valve 43, a first air flow meter 44, a third air flow meter 45 and a second air flow meter 46.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 2, a curtain wall air tightness detection device is suitable for detecting air tightness at the joint of curtain wall units; the device can detect the air tightness of the curtain wall by manually pumping air to generate the indoor and outdoor air pressure difference of the curtain wall under the natural condition of simulating the indoor and outdoor air pressure difference.
The curtain wall air tightness detection device comprises a decompression box 2 and a sealing cover 1; the sealing cover 1 is assembled at the bottom of the decompression box 2 and is communicated with the decompression box 2, rubber strips 11 are circumferentially arranged at the bottom of the sealing cover 1, and an instrument panel 3 is arranged on the sealing cover 1; the decompression box 2 comprises a box body 20, a venting cavity 21 is formed in the box body 20, a spring 22 is assembled in the venting cavity 21, one end of the spring 22 abuts against the bottom of the venting cavity 21, the other end of the spring 22 is connected with a piston 23, an air extraction core tube 24 is connected to the piston 23, the air extraction core tube 24 extends out of the top of the box body 20, and a pressing handle 25 is arranged on the air extraction core tube 24.
The manual air extracting device, the pressure gauge and the handle 6 are arranged at the upper opening of the pressure reducing box 2, the handle 6 is arranged in the middle, and the manual air extracting device and the instrument panel 3 are respectively arranged at two sides of the handle 6; the manual air extraction device is convenient to carry, and manual air extraction can be adopted when the air extraction pump is inconvenient to carry at the position of the curtain wall to be detected or the number of detection batches is small; the pressure gauge and the differential pressure gauge are arranged in the instrument panel 3, and the instrument panel can display measurement data of the pressure gauge, the differential pressure gauge, the first air flow meter 44 and the second air flow meter 46; the manometer measures the air pressure in the decompression tank 2.
The contact surface between the lower opening of the decompression box 2 and the curtain wall is made of soft materials, and the rubber strip 11 can be tightly contacted with the surface of the curtain wall unit to be detected under certain pressure. The lower opening of the decompression box 2 is circular and is only schematic, and the shape of the curtain wall unit can be adjusted according to actual detection; the rubber strip component has certain elasticity, and can ensure that the decompression box has better sealing effect when being communicated with the sealing cover.
The first sealing ring 27 is arranged at the joint of the air extraction core pipe 24 and the box body 20, so that the tightness between the whole box body 20 and the air extraction core pipe 24 is improved, and the safety and the sealing effect of the air tightness detection of the whole curtain wall are improved.
An exhaust pipe 4 is formed in the middle of the exhaust core pipe 24, and a first air valve 40 and a second air valve 41 are installed at the bottom of the exhaust pipe 4; by providing the first air valve 40, pressing the handle 25 applies pressure to push the piston 23 to compress the spring 22 inward, the first air valve 40 is in a closed state, the second air valve 41 is in an open state, the spring 22 returns to push the handle 25 upward, the first air valve 40 is in an open state, and the second air valve 41 is in a closed state.
The side wall of the box 20 is circumferentially provided with an air flow channel 26, and the top of the air flow channel 26 is communicated with an air pumping cavity 28, wherein the air pumping cavity 28 is a region between the piston 23 and the top of the box 20.
Wherein, the end of piston 23 is provided with second sealing washer 5, has improved the leakproofness between piston 23 and decompression case 2 in the course of moving.
The two sides of the airflow channel 26 are respectively provided with a first air flow meter 44 and a second air flow meter 46, and the bottoms of the first air flow meter 44 and the second air flow meter 46 are respectively provided with a third air valve 42 and a fourth air valve 43; a third air valve 42 and a fourth air valve 43 are fitted in the air flow passage 26.
The air flow channel 26 is a channel between a plurality of adjacent steel sheets 29, the plurality of steel sheets 29 are distributed at equal intervals, the plurality of steel sheets 29 are fixedly connected with the box body 20, and the integrated forming is carried out, so that the structural strength and the integral firmness of the box body 20 are improved, and the use safety is further ensured.
The application method of the simple curtain wall air tightness detection device comprises the following steps:
1. the process flow comprises the following steps: cleaning the surface of a curtain wall unit to be detected, opening a part of a switch of a curtain wall generation detection unit for at least 5 times, wetting a rubber strip at the lower opening of the device by soap liquid, fixing the detection device to the surface of the curtain wall unit to be detected, manually pumping air to set air pressure difference, stopping pumping air, observing instrument panel data, and calculating air permeability.
Manual air pump working principle of curtain wall air tightness detection device:
1. the pressing handle 25 is pressed to push the piston 23 to compress the spring 22 inwards, the first air valve 40 is in a closed state, the second air valve 41, the third air valve 42 and the fourth air valve 43 are in an open state, the volume of the air release cavity 21 is reduced, and the volume of the air suction cavity 28 is increased.
2. The pressure release chamber gas is discharged to the outside through the second gas valve 41 via the exhaust pipe 4 in the exhaust core pipe 24.
3. The gas of the decompression tank 2 is discharged to the decompression chamber through the gas flow passage 26 with the steel sheet 29 by the third gas valve 42 and the fourth gas valve 43.
A detection method of curtain wall air tightness detection device comprises the following steps:
1) Before detection, the part of the test piece which can be opened is opened for at least 5 times, and finally closed.
2) 3 pressure pulses are applied before detection, the absolute value of the pressure difference is 500Pa, the duration is 3s, and the pressurizing speed is preferably 100Pa/s. And then starting to detect after the pressure returns to zero. (3 pressure pulses of preliminary pressurization can be omitted by adopting a manual pumping mode);
3) An additional air permeation quantity qt;
4) The openable gap and the inlaid gap on the test piece are fully sealed, or the opening part of the box body is sealed by airtight materials. Then pressurizing step by step according to the detection pressurizing sequence of FIG. 2, wherein the pressure acting time of each step is more than 10s. Positive pressure is added step by step, and then negative pressure is added step by step. The detection value at each stage of differential pressure is recorded.
Total permeation quantity qz
And removing sealing measures added to the curtain wall unit to be detected, and detecting. Detection procedure 3)
2) Fixed part air permeation quantity qg
And sealing the opening gap of the openable part on the curtain wall unit to be detected, and detecting. Detection procedure 3)
4. Processing of detection values
1) Respectively calculating the average value of the additional penetration detection values under the pressure difference of 100Pa in the depressurization detection processAverage value of total permeation quantity detection value +.>Mean value of fixed fraction permeation quantity detection value +.>
2) The air permeability value of the test piece in unit area under the action of 100Pa pressure difference, the air permeability value of the test piece in unit area under the action of 10Pa pressure difference, the air permeability value of the unit opening seam under the action of 100Pa pressure difference and the air permeability value of the unit opening seam under the action of 10Pa pressure difference are calculated according to the building curtain wall airtight, watertight and wind pressure resistance performance detection method GB/T15227-2007 4.1.5.1.
Example 2:
the curtain wall air tightness detection device is used for detecting curtain wall air tightness by generating an indoor and outdoor air pressure difference of the curtain wall under the natural condition of simulating the indoor and outdoor air pressure difference by air pump air suction. The curtain wall air tightness detection device also comprises a pressure supply assembly; the pressure supply assembly comprises an air pump 10 arranged outside the sealed cover 1 and an air extraction conduit 12 connected between the air pump 10 and the sealed cover 1, a fifth air valve 13 is arranged in the sealed cover 1, and the air extraction conduit 12 is communicated with the fifth air valve 13; the fifth air valve 13 is connected with a third air flow meter 45, and the third air flow meter 45 is assembled on the air extraction duct 12.
The instrument panel 3 is internally provided with a pressure gauge and a differential pressure gauge, and the panel of the instrument panel can display measurement data of the pressure gauge, the differential pressure gauge and the third air flow meter 45; the manometer measures the air pressure in the decompression tank 2.
The air extractor of the curtain wall air tightness detection device adopts an air extracting mode of an air extracting pump, so that the air tightness detection efficiency of the whole curtain wall is improved.
The using method of the curtain wall air tightness detection device comprises the following steps:
1. the process flow comprises the following steps: cleaning the surface of a curtain wall unit to be detected, opening a part of a switch of a curtain wall generation detection unit for at least 5 times, wetting a rubber strip at the lower opening of the device by soap liquid, fixing the detection device to the surface of the curtain wall unit to be detected, pumping air to a set air pressure difference by an air pump, stopping pumping air, observing instrument panel data, and calculating air permeability.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more herein: the terms of the sealing cover 1, the decompression box 2, the instrument panel 3, the exhaust pipe 4, the second sealing ring 5, the air pump 10, the rubber strip 11, the exhaust duct 12, the fifth air valve 13, the box body 20, the exhaust cavity 21, the spring 22, the piston 23, the exhaust core tube 24, the pressing handle 25, the air flow passage 26, the first sealing ring 27, the exhaust cavity 28, the steel sheet 29, the first air valve 40, the second air valve 41, the third air valve 42, the fourth air valve 43, the first air flow meter 44, the third air flow meter 45, the second air flow meter 46 and the like are not excluded, but other terms may be used. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (10)
1. Curtain gas tightness detection device, its characterized in that: comprises a decompression box (2) and a sealing cover (1); the sealing cover (1) is assembled at the bottom of the decompression box (2) and is communicated with the decompression box (2), rubber strips (11) are circumferentially arranged at the bottom of the sealing cover (1), and an instrument panel (3) is arranged on the sealing cover (1); the decompression box (2) comprises a box body (20), a gas release cavity (21) is formed in the box body (20), a spring (22) is assembled in the gas release cavity (21), one end of the spring (22) abuts against the bottom of the gas release cavity (21), the other end of the spring (22) is connected with a piston (23), an air extraction core pipe (24) is connected to the piston (23), the air extraction core pipe (24) extends out of the top of the box body (20), and a pressing handle (25) is arranged on the air extraction core pipe (24).
2. The curtain wall air tightness detection device according to claim 1, wherein: the connection part of the air extraction core tube (24) and the box body (20) is provided with a first sealing ring (27).
3. The curtain wall air tightness detection device according to claim 2, wherein: an exhaust pipe (4) is formed in the middle of the exhaust core pipe (24), and a first air valve (40) and a second air valve (41) are installed at the bottom of the exhaust pipe (4).
4. A curtain wall air tightness detection device according to claim 3, wherein: an air flow channel (26) is formed in the circumferential direction of the side wall of the box body (20), and the top of the air flow channel (26) is communicated with an air pumping cavity (28), wherein the air pumping cavity (28) is a region between the piston (23) and the top of the box body (20).
5. The curtain wall air tightness detection device according to claim 4, wherein: the end of the piston (23) is provided with a second sealing ring (5).
6. The curtain wall air tightness detection device according to claim 5, wherein: a first air flow meter (44) and a second air flow meter (46) are respectively arranged at two sides of the air flow channel (26), and a third air valve (42) and a fourth air valve (43) are respectively arranged at the bottoms of the first air flow meter (44) and the second air flow meter (46); a third air valve (42) and a fourth air valve (43) are fitted in the air flow passage (26).
7. The curtain wall air tightness detection device according to claim 6, wherein: the air flow channel (26) is a channel between a plurality of adjacent steel sheets (29), the plurality of steel sheets (29) are distributed at equal intervals, and the plurality of steel sheets (29) are fixedly connected with the box body (20) and integrally formed.
8. A curtain wall air tightness detection device according to any of claims 1-7, characterized in that: the hydraulic pump also comprises a pressure supply assembly; the pressure supply assembly comprises an air pump (10) arranged outside the sealing cover (1) and an air extraction duct (12) connected between the air pump (10) and the sealing cover (1), a fifth air valve (13) is arranged in the sealing cover (1), and the air extraction duct (12) is communicated with the fifth air valve (13).
9. The curtain wall air tightness detection device according to claim 8, wherein: and a third air flow meter (45) is connected to the fifth air valve (13), and the third air flow meter (45) is assembled on the air suction duct (12).
10. The curtain wall air tightness detection device according to claim 1, wherein: the instrument panel (3) is internally provided with a pressure gauge and a differential pressure gauge, and the panel of the instrument panel can display measurement data of the pressure gauge, the differential pressure gauge, the first air flow meter (44), the second air flow meter (46) and the third air flow meter (45); the manometer measures the air pressure in the decompression box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320102329.3U CN219694460U (en) | 2023-02-02 | 2023-02-02 | Curtain gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320102329.3U CN219694460U (en) | 2023-02-02 | 2023-02-02 | Curtain gas tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219694460U true CN219694460U (en) | 2023-09-15 |
Family
ID=87969723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320102329.3U Active CN219694460U (en) | 2023-02-02 | 2023-02-02 | Curtain gas tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219694460U (en) |
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2023
- 2023-02-02 CN CN202320102329.3U patent/CN219694460U/en active Active
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