CN201607253U - Device for testing air duct pressure bearing air leakage and pipe wall pressure resisting deflection - Google Patents
Device for testing air duct pressure bearing air leakage and pipe wall pressure resisting deflection Download PDFInfo
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- CN201607253U CN201607253U CN2010201185943U CN201020118594U CN201607253U CN 201607253 U CN201607253 U CN 201607253U CN 2010201185943 U CN2010201185943 U CN 2010201185943U CN 201020118594 U CN201020118594 U CN 201020118594U CN 201607253 U CN201607253 U CN 201607253U
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- air
- inleakage
- measuring section
- rate measuring
- leakage rate
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Abstract
The utility model discloses a device for testing air duct pressure bearing air leakage and pipe wall pressure resisting deflection, which comprises a blower, an air leakage rate measuring section, an air pipe connector, a first hose, a second hose and a tilting micromanometer, wherein the air leakage rate measuring section is provided with an air inlet end and an air outlet end, and an orifice plate flow meter is mounted in the interior of the air leakage rate measuring section; the air pipe connector is provided with an air inlet port and an air outlet port; one end of the first hose is in airtight connection with the air outlet port of the blower while the other end thereof is in airtight connection with air leakage rate measuring section; one end of the second hose is in airtight connection with air outlet end of the air leakage rate measuring section while the other end of the second hose is in air tight connection with the air pipe connector; and the input end of the tilting micromanometer is connected with the air outlet port of the air pipe connector. The air leakage rate measuring section takes the shape of a tube, the middle part thereof is provided with a separable joint part, and the orifice plate flow meter is arranged at the joint part. The device further comprises a transducer connected with the blower and can be used for controlling the rotate speed of the blower. Due to the adoption of the structure, the utility model has the advantages of simple structure, convenient movement and simple and convenient operation, and is suitable for being used in construction sites and laboratories.
Description
Technical field
The utility model is a kind of airduct pressure-bearing inleakage and the withstand voltage deflection proving installation of tube wall.
Background technology
For a high-quality air conditioner cleaning system, not only high-quality air-conditioning equipment to be arranged, energy-conservation automatic control equipment also must have high-quality airduct, water pipe system to guarantee.In construction, how to differentiate the construction safety quality of air-line system, wherein, inleakage and tube wall deformation amount after the detection airduct pressure-bearing are particularly important, if the inleakage of air-line system can not get effective control, can cause the waste of air conditioner energy.
Air conditioning wind pipe proving installation of the prior art comprises blower fan, flow controller, pressure measurement instrument and honeycomb screen, and its structure is comparatively complicated, and cost is higher.
The utility model content
Problem to be solved in the utility model is problems of the prior art, provides a kind of simple in structure, can directly measure gas flow, obtains the proving installation of inleakage.
For achieving the above object, the withstand voltage deflection proving installation of airduct pressure-bearing inleakage of the present utility model and tube wall comprises a blower fan, an inlet end and an outlet side, and inside is equipped with the inleakage measuring section of orifice flowmeter; The duct collar that comprises an air intake opening and a gas outlet; Be tightly connected first flexible pipe of inleakage measuring section inlet end of the one end fan outlet that is tightly connected, the other end; Be tightly connected second flexible pipe of duct collar of the one end inleakage measuring section outlet side that is tightly connected, the other end; And a tilting micromanometer, input end is connected with the gas outlet of described duct collar.
Preferably, described inleakage measuring section is a tubulose, and the centre has separable shank, abacus flowmeter on the joint.
Preferably, the withstand voltage deflection proving installation of described airduct pressure-bearing inleakage and tube wall also comprises a frequency converter, is connected with blower fan and can controls rotation speed of fan.
Of the present utility model owing to have above structure, therefore simple in structure, conveniently moving, easy and simple to handle is fit to working-yard and laboratory and uses.
Description of drawings
Fig. 1 is the structural representation of utility model.
Fig. 2 is the structural representation of inleakage measuring section described in the utility model.
Fig. 3 is the pressure reduction (Δ P) and air quantity (Q) graph of relation of a kind of calibrating in advance of the present utility model.
Embodiment
With reference to Fig. 1, the withstand voltage deflection proving installation of airduct pressure-bearing inleakage in the utility model and tube wall comprises blower fan 1, inleakage measuring section 2, duct collar 3, the first flexible pipe 4, the second flexible pipes 5, frequency converter 6 and tilting micromanometers 7.Wherein, the power control terminal frequency converter 6 of blower fan is connected.
With reference to Fig. 2, inleakage measuring section 2 comprises first main body 21 with an inlet end 211, separable shank 22 and have second main body 23 of an outlet side 231, separable shank 22 is between first main body 21 and second main body 23, with first main body 21 and second main body, 23 separable being tightly connected, be fixed with an orifice flowmeter 221 on the separable shank 22 respectively.Described inlet end 211 links to each other with the air outlet of blower fan 1 is airtight by first flexible pipe 4, and outlet side 231 is connected with duct collar 3 by second flexible pipe 5; Duct collar 3 comprises 31, one air intake openings 32 of a main body and an exhausr port 33, wherein main body 31 in experiment with air-line system 8 airtight being connected to be measured, air intake opening 32 is connected with the inleakage measuring section by second flexible pipe 5; The input end of tilting micromanometer 7 connects the exhausr port 33 of duct collar 3, calculates the required pressure difference of inleakage to measure.
Wherein, in order to enlarge the scope of application of the present utility model, the discharge quantity of fan of described blower fan is selected 500m for use
3/ h, blast is selected 4000Pa for use.
In conjunction with displacement measurement instruments such as milscales, the utility model can be realized the measurement to the airduct deflection.
This Design of device technology except that the requirement of satisfying basic, normal, high pressing system airduct inleakage and the test of tube wall deformation amount, structurally, on the measuring technique, is more suitable for the working-yard and uses, and measuring technique is simple, measurement result is accurate.
Principle of work of the present utility model is as follows
Open the power supply of blower fan 1, regulate the frequency of frequency converter 6, when making the interior static pressure of airduct to be measured (or air-line system) meet the requirements of experiment work pressure, by the pressure difference of tilting micromanometer 7 measuring diaphragm flowmeters 221 front and back.According to this pressure difference (Δ P), utilize the pressure reduction (Δ P) and air quantity (Q) relation curve of calibrating in advance, see Fig. 3, find the value that leaks out (Q), also the relation curve of Q=f (Δ P) can be fitted to computing formula Q=K (Δ P) β and calculate inleakage (Q).
What this device adopted is the orifice plate of general processing request, if use the computing formula of standard orifice plate, too complicated first, second additive factor is also inaccurate too much, therefore consider that adopting national normal flow testing table (is the standard air port test unit at national air-conditioning equipment quality inspection center, the flow measurement error is 2%) examine and determine the relation curve of this device orifice plate flow and pressure reduction, and can fit to computing formula, thus guaranteed the measuring accuracy of this device.Wherein a kind of pressure reduction (Δ P) of calibrating in advance and air quantity (Q) graph of relation are as shown in Figure 3.
Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (4)
1. airduct pressure-bearing inleakage and the withstand voltage deflection proving installation of tube wall is characterized in that: comprise a blower fan, and an inlet end and an outlet side, inside is equipped with the inleakage measuring section of orifice flowmeter; The duct collar of an air intake opening and a gas outlet; Be tightly connected first flexible pipe of inleakage measuring section inlet end of the one end fan outlet that is tightly connected, the other end; Be tightly connected second flexible pipe of duct collar of the one end inleakage measuring section outlet side that is tightly connected, the other end; And a tilting micromanometer, input end is connected with the gas outlet of described duct collar.
2. according to airduct pressure-bearing inleakage described in the claim 1 and the withstand voltage deflection proving installation of tube wall, it is characterized in that: described inleakage measuring section is a tubulose, and the centre has separable shank, and orifice flowmeter is housed on the joint.
3. according to airduct pressure-bearing inleakage described in the claim 2 and the withstand voltage deflection proving installation of tube wall, it is characterized in that: it is the orifice flowmeter of 70mm or 20mm that the separable shank on the inleakage measuring section is installed diameter.
4. according to any described airduct pressure-bearing inleakage and the withstand voltage deflection proving installation of tube wall in the above claim, it is characterized in that: described airduct pressure-bearing inleakage and tube wall withstand voltage deflection proving installation comprises that also one links to each other with blower fan, the frequency converter of control rotation speed of fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201185943U CN201607253U (en) | 2010-02-25 | 2010-02-25 | Device for testing air duct pressure bearing air leakage and pipe wall pressure resisting deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201185943U CN201607253U (en) | 2010-02-25 | 2010-02-25 | Device for testing air duct pressure bearing air leakage and pipe wall pressure resisting deflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201607253U true CN201607253U (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201185943U Expired - Fee Related CN201607253U (en) | 2010-02-25 | 2010-02-25 | Device for testing air duct pressure bearing air leakage and pipe wall pressure resisting deflection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201607253U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566775B (en) * | 2013-10-28 | 2018-10-16 | 珠海格力电器股份有限公司 | Variable air volume air conditioning system and control method |
| CN110906393A (en) * | 2019-11-04 | 2020-03-24 | 宁波方太厨具有限公司 | Building smoke exhaust system and operation monitoring method thereof |
| CN110906392A (en) * | 2019-11-04 | 2020-03-24 | 宁波方太厨具有限公司 | Building smoke exhaust system and operation monitoring method thereof |
| CN112945340A (en) * | 2021-02-05 | 2021-06-11 | 上海建工四建集团有限公司 | Connecting piece for air pipe air leakage test and application method thereof |
-
2010
- 2010-02-25 CN CN2010201185943U patent/CN201607253U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566775B (en) * | 2013-10-28 | 2018-10-16 | 珠海格力电器股份有限公司 | Variable air volume air conditioning system and control method |
| CN110906393A (en) * | 2019-11-04 | 2020-03-24 | 宁波方太厨具有限公司 | Building smoke exhaust system and operation monitoring method thereof |
| CN110906392A (en) * | 2019-11-04 | 2020-03-24 | 宁波方太厨具有限公司 | Building smoke exhaust system and operation monitoring method thereof |
| CN110906393B (en) * | 2019-11-04 | 2021-07-23 | 宁波方太厨具有限公司 | Operation monitoring method of building smoke exhaust system |
| CN110906392B (en) * | 2019-11-04 | 2021-07-23 | 宁波方太厨具有限公司 | Operation monitoring method of building smoke exhaust system |
| CN112945340A (en) * | 2021-02-05 | 2021-06-11 | 上海建工四建集团有限公司 | Connecting piece for air pipe air leakage test and application method thereof |
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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 |
Granted publication date: 20101013 Termination date: 20190225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |