CN108871704A - The detection method of more piece splicing air hose tightness - Google Patents
The detection method of more piece splicing air hose tightness Download PDFInfo
- Publication number
- CN108871704A CN108871704A CN201810488009.XA CN201810488009A CN108871704A CN 108871704 A CN108871704 A CN 108871704A CN 201810488009 A CN201810488009 A CN 201810488009A CN 108871704 A CN108871704 A CN 108871704A
- Authority
- CN
- China
- Prior art keywords
- pipeline group
- connecting tube
- micromanometer
- tightness
- numerical value
- 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.)
- Pending
Links
Classifications
-
- 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
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of detection methods of more piece splicing air hose tightness, bulit on stilts at least will be carried out by the pipeline group that three-joint pipe body is spliced, the both ends of pipeline group are equipped with for sealing plate, the connecting tube I and connecting tube II being connected to in pipeline group are installed on sealing plate, the access of connecting tube I has air compressor, regulating valve is installed, connecting tube II is provided with micromanometer and is connected to the inlet end of micromanometer in connecting tube I；Micromanometer, starting air compressor to pressure stabilizing state are opened, if during slowly opening regulating valve to full-gear, showing situation according to the numerical value of micromanometer, judging that pipeline group tightness detects whether qualification.The present invention can reduce the demand to place, improve detection efficiency, reduce work load, in addition this method is simple and convenient for operation, and operating cost is low after air hose completes to the aerial detection that can carry out tightness to it of air hose.
Description
Technical field
The present invention relates to the tests of air hose tightness, and in particular to a kind of detection method of more piece splicing air hose tightness.
Background technique
China's building energy consumption accounts for about the 25% of social commodities energy total flow at present, and wherein air conditioning system energy consumption is about
The 50% of building energy consumption is accounted for, the structure of air-conditioning system has become the important composition of national energy strategy.And air hose inleakage is big
Small is the important indicator examined heating ventilation and air-conditioning system engineering quality and reduce energy consumption.Air-line system is according to category division point
The test request of the determination and air-line system tightness that allow to leak out for low-pressure system, medium voltage network and high-pressure system, air hose
Relevant regulations are made.Traditional air hose test generally uses hydraulic pressure test, and the test mode needs to provide for accommodating wind
The pond of pipe, if pipeline is too long, not only hydraulic pressure test, which accommodates pond, can have place restricted problem, in addition also can only be for single
Item engineering test is used, and can not be accomplished to be recycled, be caused to waste.But also need to carry pipeline, it needs to expend a large amount of
Manpower and material resources, be not easy to multi-point sampler in heavy construction, and the air hose after the water pressure test there is also corrosion phenomena,
Therefore this kind of mode applies in general to the pipeline used under non-metal kind and wet environment test.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is to：How to provide it is a kind of not by the wind
Length of tube limitation, the detection method of the simple and efficient more piece splicing air hose tightness of test operation.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions：
A kind of detection method of more piece splicing air hose tightness, will at least be maked somebody a mere figurehead by the pipeline group that three-joint pipe body is spliced
Support, the both ends of pipeline group are equipped with the sealing plate for being sealed to it, are equipped with and manage on two pieces of sealing plates respectively
The connecting tube I and connecting tube II being connected in road group, connecting tube I far from one end access of pipeline group have for gas in pipelines into
The air compressor of row boosting, is equipped with the regulating valve for adjusting aperture in connecting tube I, connecting tube II far from pipeline group one
End is provided with micromanometer and is connected to the inlet end of micromanometer, wherein pipeline group surface area S=Q1（m3/min）/Q2[m3/(h*
M2)] >=15m2, Q1 are air compressor rated discharge amount, and Q2 is that air-line system allows maximum inleakage；
Unlatching micromanometer, starting air compressor to pressure stabilizing state, if during slowly opening regulating valve to full-gear, minute-pressure
Table shows numerical value first increases and then decreases, final to show numerical value in stable state and be less than pipeline group design work pressure value, then
Judge that the detection of pipeline group tightness is unqualified；If during slowly opening regulating valve to full-gear, micromanometer shows that numerical value increases
After big, final numerical value is in stable state and is greater than or equal to pipeline group design work pressure value, then judges pipeline group tightness
Detection is qualified.
In invention, the rated discharge amount for determining air compressor is first gone according to the surface area of pipeline group, according to correlation
Specification, pipeline group surface area must be greater than or be equal to 15m2, then allow maximum inleakage to be counted according to air-line system
It calculates, chooses the air compressor of corresponding rated discharge amount, air compressor rated discharge amount allows no more than air-line system
Maximum inleakage.Air compressor starting, and after reaching pressure stabilizing state, regulating valve is slowly opened, compressed air enters pipe
In road group, during regulating valve is opened, gradually pressure rise in pipeline group, and then micromanometer numerical value starts to increase, if
There are leakage points for the stitching portion of more piece tube body, then the gas after boosting will leak away from these leakage points.Due to adjusting
After valve opening standard-sized sheet, pressure is very big in pipeline group, thus gas can slave leakage point rapidly leak, and in the work of impact force
With it is lower can further expansion leakage point leakage area, the pressure in pipeline group can decline after reaching an equalization point, this mistake
Corresponding micromanometer shows that numerical value just will appear first increases and then decreases in journey, final to show numerical value in stable state and be less than pipe
Road group design work pressure value, then the detection of pipeline group tightness is unqualified.On the contrary, if after micromanometer display numerical value increase not
There is obvious appearance decline phenomenon, and finally shows that values over time was stablized a stage, while being greater than or equal to pipeline
Design work pressure value is organized, then the practical air inlet Liang of the practical inleakage of pipeline section group=pipeline section group≤air compressor rated discharge amount
The maximum allowable inleakage Q2 of Q1≤pipeline section group, then the detection of pipeline group tightness is qualified.
In conclusion the beneficial effects of the present invention are：The present invention can make somebody a mere figurehead just air hose after air hose completes
The detection that tightness can be carried out to it, reduces the demand to place, improves detection efficiency, reduces work load, separately
Outer this method is simple and convenient for operation, and operating cost is low.
Specific embodiment
The present invention is described in further detail below.
In present embodiment more piece splicing air hose tightness detection method, will at least be spliced by three-joint pipe body and
At pipeline group carry out bulit on stilts, the both ends of pipeline group are equipped with the sealing plate for being sealed to it, respectively at two pieces
The connecting tube I and connecting tube II being connected to in pipeline group are installed, connecting tube I has far from one end access of pipeline group on sealing plate
Air compressor for boosting to gas in pipelines is equipped with the regulating valve for adjusting aperture, connection in connecting tube I
Pipe II is provided with micromanometer far from one end of pipeline group and is connected to the inlet end of micromanometer, wherein pipeline group surface area S=Q1
（m3/min）/Q2[m3/(h*m2)]≥15m2, Q1For air compressor rated discharge amount, Q2Maximum is allowed to leak out for air-line system
Amount；
Unlatching micromanometer, starting air compressor to pressure stabilizing state, if during slowly opening regulating valve to full-gear, minute-pressure
Table shows numerical value first increases and then decreases, final to show numerical value in stable state and be less than pipeline group design work pressure value, then
Judge that the detection of pipeline group tightness is unqualified；If during slowly opening regulating valve to full-gear, micromanometer shows that numerical value increases
After big, final numerical value is in stable state and is greater than or equal to pipeline group design work pressure value, then judges pipeline group tightness
Detection is qualified.
During specific implementation, sealing plate is connected and sealed by the end of flange and pipeline group, on sealing plate
Offer stomata, on the lateral surface of the sealing plate and position of corresponding stomata is fixedly connected with the trachea being connected to stomata, described
Connecting tube I and the connecting tube II are hose and are turned on corresponding trachea by anchor ear.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To make various changes to it in the form and details, without departing from the present invention defined by the appended claims
Spirit and scope.
Claims (1)
1. a kind of detection method of more piece splicing air hose tightness, it is characterised in that：By what is be at least spliced by three-joint pipe body
Pipeline group carries out bulit on stilts, and the both ends of pipeline group are equipped with the sealing plate for being sealed to it, seals respectively at two pieces
The connecting tube I and connecting tube II being connected to in pipeline group are installed, connecting tube I is used for far from one end access of pipeline group on plate
The air compressor to boost to gas in pipelines is equipped with the regulating valve for adjusting aperture, connecting tube II in connecting tube I
One end far from pipeline group is provided with micromanometer and is connected to the inlet end of micromanometer, wherein pipeline group surface area S=Q1（m3/
min）/Q2[m3/(h*m2)]≥15m2, Q1For air compressor rated discharge amount, Q2Allow maximum inleakage for air-line system；
Unlatching micromanometer, starting air compressor to pressure stabilizing state, if during slowly opening regulating valve to full-gear, minute-pressure
Table shows numerical value first increases and then decreases, final to show numerical value in stable state and be less than pipeline group design work pressure value, then
Judge that the detection of pipeline group tightness is unqualified；If during slowly opening regulating valve to full-gear, micromanometer shows that numerical value increases
After big, final numerical value is in stable state and is greater than or equal to pipeline group design work pressure value, then judges pipeline group tightness
Detection is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488009.XA CN108871704A (en) | 2018-05-21 | 2018-05-21 | The detection method of more piece splicing air hose tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488009.XA CN108871704A (en) | 2018-05-21 | 2018-05-21 | The detection method of more piece splicing air hose tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108871704A true CN108871704A (en) | 2018-11-23 |
Family
ID=64334471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810488009.XA Pending CN108871704A (en) | 2018-05-21 | 2018-05-21 | The detection method of more piece splicing air hose tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108871704A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203203771U (en) * | 2013-04-25 | 2013-09-18 | 天津三建建筑工程有限公司安装分公司 | Air leakage testing device for single-section air duct and component thereof in ventilation and air conditioning system |
| CN206161253U (en) * | 2016-10-21 | 2017-05-10 | 上海峰霸工程技术有限公司 | Air conditioner tuber pipe air leakage detection device |
| 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 |
| CN107367357A (en) * | 2017-08-04 | 2017-11-21 | 上海市安装工程集团有限公司 | A kind of tightness detector and its detection method |
-
2018
- 2018-05-21 CN CN201810488009.XA patent/CN108871704A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203203771U (en) * | 2013-04-25 | 2013-09-18 | 天津三建建筑工程有限公司安装分公司 | Air leakage testing device for single-section air duct and component thereof in ventilation and air conditioning system |
| CN206161253U (en) * | 2016-10-21 | 2017-05-10 | 上海峰霸工程技术有限公司 | Air conditioner tuber pipe air leakage detection device |
| 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 |
| CN107367357A (en) * | 2017-08-04 | 2017-11-21 | 上海市安装工程集团有限公司 | A kind of tightness detector and its detection method |
Non-Patent Citations (1)
| Title |
|---|
| 杨崑: "《暖通空调施工细节与禁忌》", 30 December 2012 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204592706U (en) | Clad type on-line pressure sealant jig | |
| CN110608952A (en) | Hydraulic test system and test method applied to large-diameter conveying pipeline | |
| CN204479417U (en) | A kind of rock gas station process pipe gas pressure test system | |
| CN207921540U (en) | A kind of railway vehicle air conditioner ventilation length compensation reinforcement type air channel flange | |
| CN108871704A (en) | The detection method of more piece splicing air hose tightness | |
| CN208779750U (en) | A kind of heat pump unit with energy storage defrosting function | |
| CN205678190U (en) | A kind of flow restricted check valve | |
| CN217845558U (en) | Single-tube leakage detection device for heat exchanger tube bundle | |
| CN208779753U (en) | A kind of heat pump unit with energy storage defrosting function | |
| CN205138731U (en) | Heat exchanger gas tightness detection device | |
| CN207634685U (en) | Compensation rubber weather strip between a kind of angle steel flange connection metal bellows tube coupling | |
| CN213022649U (en) | Explosion-proof motor hydrostatic test device with drainage function | |
| CN115596925A (en) | Online repairing method for flexible composite pipe | |
| CN210487184U (en) | Air pressure detection device for U-shaped heat exchange tube | |
| CN201795960U (en) | Equipment system for high-efficiency process pipe pressure testing | |
| CN208169758U (en) | A kind of combined self flange | |
| CN205958374U (en) | Valve hydraulical pressure test apparatus | |
| CN208125324U (en) | A kind of connection structure of DC converter valve differential pressure indicator | |
| CN206959398U (en) | A kind of straight swollen refrigeration system with automatic hot air defrosting valve group | |
| CN220623211U (en) | Dustproof plugging device is used in fire control pipe construction | |
| CN104293996B (en) | Leakage detecting device of blast furnace multistage connected closed circulating cooling water system and leakage detecting method thereof | |
| CN209054996U (en) | A kind of flange structure of heat exchanger of noresidue | |
| CN211668725U (en) | Air pressure test device for directional cyclic utilization of high-pressure pipeline system | |
| CN108168800A (en) | A kind of method for butterfly valve being replaced to carry out pipeline tightness test using polyethylene tube | |
| CN206648361U (en) | A kind of barrel pump refrigeration system with automatic hot air defrosting valve group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |