CN205785363U - On-spot air leakage volume detection instrument of ventilation system - Google Patents
On-spot air leakage volume detection instrument of ventilation system Download PDFInfo
- Publication number
- CN205785363U CN205785363U CN201620508967.5U CN201620508967U CN205785363U CN 205785363 U CN205785363 U CN 205785363U CN 201620508967 U CN201620508967 U CN 201620508967U CN 205785363 U CN205785363 U CN 205785363U
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- CN
- China
- Prior art keywords
- air
- air leakage
- leakage rate
- ventilating system
- check instrument
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 title abstract description 5
- 238000009423 ventilation Methods 0.000 title abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 7
- 238000007689 inspection Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a ventilation system scene leaks amount of wind and detects instrument, the one end of export air receiving pipe (2) of fan, the other end of tuber pipe (2) can be connected with the system of being surveyed the tuber pipe (2) in the middle of install the flowmeter, tuber pipe (2) on install first manometer (4), be surveyed and install the second manometer on the tuber pipe system. The utility model relates to a ventilation system scene that provides the witnessed inspections and can transport and dismouting leaks amount of wind detection instrument for ventilation system's installation quality.
Description
Technical field
This utility model relates to a kind of air volume test instrument, particularly relates to a kind of ventilating system scene air leakage rate check instrument.
Background technology
In City complex electromechanics is installed, the inleakage of ventilation and air conditioning system is one of emphasis of installation, it is desirable to design a kind of air leakage rate check instrument that can transport and dismount, and the installation quality for ventilating system provides Site Detection.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of installation quality for ventilating system and provides Site Detection and the ventilating system scene air leakage rate check instrument that can transport and dismount.
In order to solve above-mentioned technical problem, the ventilating system scene air leakage rate check instrument that this utility model dress provides, one end of the outlet air duct of blower fan, the other end of described airduct can be connected with tested air-line system, in the middle of described airduct, effusion meter is installed, first Pressure gauge is installed on described airduct, tested air-line system is provided with the second Pressure gauge.
The air quantity of described blower fan is 2000m3/ h, air-out static pressure is 2000pa.
Described blower fan is frequency conversion fan 1.
Described airduct a diameter of
Described flow is calculated as orifice flowmeter.
The opening diameter of described effusion meter is respectively 20mm and 50mm.
The first described Pressure gauge and the second manometric range are 0～2000Pa, are accurate to 1pa.
Using the ventilating system scene air leakage rate check instrument of technique scheme, after system installation, can detect the inleakage of ventilating system, certainty of measurement (range of error) is 2%.Blower fan uses model to be 9-28I-4 blower fan, and blower fan selects air quantity to be 2000m3/ h air-out static pressure is 2000pa.And employing converter, fan outlet connects a diameter ofAirduct, installing hole flowmeter in the middle of airduct, orifice flowmeter opening diameter is respectively 20mm and 50mm, and orifice flowmeter can determine the size installing effusion meter according to system air leakage amount.Native system needs to join two Pressure gauges, and manometric range is 0～2000Pa, is accurate to 1pa.During this tool making, it is ensured that have enough straight lengths before and after orifice flowmeter, and be prone to on-the-spot mounting or dismounting.
In sum, this utility model is that a kind of installation quality for ventilating system provides Site Detection and the ventilating system scene air leakage rate check instrument that can transport and dismount.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the specification structure schematic diagram of a kind of orifice flowmeter of the present utility model.
Fig. 3 is the specification structure schematic diagram of another kind of orifice flowmeter of the present utility model.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Seeing Fig. 1, Fig. 2 and Fig. 3, a kind of ventilating system scene air leakage rate check instrument, the frequency conversion fan 1 using model to be 9-28I-4, frequency conversion fan 1 selects air quantity to be 2000m3/ h, air-out static pressure are 2000pa.The outlet of frequency conversion fan 1 connects a diameter ofOne end of airduct 2, the other end of airduct 2 can be connected with tested air-line system, and the material of airduct 2 is as the material of tested air-line system.Being provided with orifice flowmeter 3 in the middle of airduct 2, the opening diameter of orifice flowmeter 3 is respectively 20mm and 50mm, and orifice flowmeter 3 determines the size of installing hole flowmeter 3 according to system air leakage amount.Native system needs to join two Pressure gauges, airduct 2 is provided with the first Pressure gauge 4, tested air-line system is provided with the second Pressure gauge.Second manometric range of the first Pressure gauge 4 is 0～2000Pa, is accurate to 1pa.
During making, it is ensured that have enough straight lengths before and after orifice flowmeter 3, and be prone to on-the-spot mounting or dismounting.
Seeing Fig. 1, Fig. 2 and Fig. 3, concrete operations of the present utility model are as follows:
First airduct 2 is connected with tested air-line system, first Pressure gauge 4 is connected with orifice flowmeter 3, second Pressure gauge is arranged on tested air-line system, after installing, open frequency conversion fan 1, being adjusted by converter, when the pressure of tested air-line system reaches test requirements document (such as 500Pa), the compressor flow value obtained by orifice flowmeter 3 is exactly the inleakage of system.
This utility model after system installation, can detect the inleakage of ventilating system, and certainty of measurement (range of error) is 2%.
Claims (7)
1. a ventilating system scene air leakage rate check instrument, it is characterized in that: one end of the outlet air duct (2) of blower fan, the other end of described airduct (2) can be connected with tested air-line system, in the middle of described airduct (2), effusion meter is installed, on described airduct (2), the first Pressure gauge (4) is installed, tested air-line system is provided with the second Pressure gauge.
Ventilating system scene the most according to claim 1 air leakage rate check instrument, is characterized in that: the air quantity of described blower fan is 2000m3/ h, air-out static pressure is 2000pa.
Ventilating system scene the most according to claim 1 and 2 air leakage rate check instrument, is characterized in that: described blower fan is frequency conversion fan (1).
Ventilating system scene the most according to claim 1 and 2 air leakage rate check instrument, is characterized in that: described airduct (2) a diameter of
Ventilating system scene the most according to claim 1 and 2 air leakage rate check instrument, is characterized in that: described flow is calculated as orifice flowmeter (3).
Ventilating system scene the most according to claim 1 and 2 air leakage rate check instrument, is characterized in that: the opening diameter of described effusion meter (3) is respectively 20mm and 50mm.
Ventilating system scene the most according to claim 1 and 2 air leakage rate check instrument, is characterized in that: described the first Pressure gauge (4) and the second manometric range are 0～2000Pa, are accurate to 1pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620508967.5U CN205785363U (en) | 2016-05-30 | 2016-05-30 | On-spot air leakage volume detection instrument of ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620508967.5U CN205785363U (en) | 2016-05-30 | 2016-05-30 | On-spot air leakage volume detection instrument of ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785363U true CN205785363U (en) | 2016-12-07 |
Family
ID=59978893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620508967.5U Expired - Fee Related CN205785363U (en) | 2016-05-30 | 2016-05-30 | On-spot air leakage volume detection instrument of ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136381A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Reverse-blowing detection system |
-
2016
- 2016-05-30 CN CN201620508967.5U patent/CN205785363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136381A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Reverse-blowing detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210530 |