CN207123371U - A kind of pipe fitting differential pressure air-tightness detection device - Google Patents
A kind of pipe fitting differential pressure air-tightness detection device Download PDFInfo
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- CN207123371U CN207123371U CN201721114425.0U CN201721114425U CN207123371U CN 207123371 U CN207123371 U CN 207123371U CN 201721114425 U CN201721114425 U CN 201721114425U CN 207123371 U CN207123371 U CN 207123371U
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- air accumulator
- air
- gas
- differential pressure
- inflation
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Abstract
It the utility model is related to a kind of pipe fitting differential pressure air-tightness detection device, including source of the gas, detecting system and plug control system, detecting system includes the first air accumulator, five-way valve and some groups of detection units, first air accumulator is connected with source of the gas, measured piece and balance element are each attached in detection unit, first air accumulator is inflated into measured piece and balance element simultaneously, five-way valve is located on the pipeline between measured piece and balance element, for cutting off the pipeline between measured piece and balance element, each detection unit is provided with a differential pressure pick-up, pipeline connection where the low-pressure end and measured piece of differential pressure pick-up, high-pressure side is connected with the pipeline where balance element；Described plug control system is used for the other end for blocking measured piece.The utility model is easy to detect without measured piece is immersed in water, is cleaned without the later stage.
Description
Technical field
It the utility model is related to pipeline air tightness detection machine, more particularly to pipe fitting differential pressure air-tightness detection device.
Background technology
Pipeline air tightness detection machine is mainly used to detect whether duct wall has micropore to produce gas leakage.Due to pipeline generally by with
In conveying various gases or various liquid (including liquid that is poisonous, having pollution), so, the air-leakage test of duct wall is just very
It is important.Thus the purposes of pipeline air tightness detection machine is with regard to very extensive.
At present to the detection of pipeline air-tightness, mainly using being filled in pipeline encroached water in pipeline after high pressure gas or
Detected in foaming agent, as the Chinese patent of Application No. 201310659620.1 provides a kind of pipeline air-leakage test dress
Put, including：For the portion of blocking up for the gas outlet for sealing detected pipeline；Water tank, blocks up portion and detected pipeline is located in water tank
Liquid level below；Air inlet pipe, connected with the air inlet of detected pipeline.During device for detecting air tightness of pipeline in the invention, work
Need to be passed through gas into detected pipeline by air inlet pipe as personnel, then observe detected pipeline and everywhere, particularly connect
Place whether there is gas leak phenomenon, if not having bubble generation in water tank, illustrate that the air-tightness for being detected pipeline is good, if logical
Enter the gas in detected pipeline and become bubble spilling in water, then illustrate to be detected pipeline poor air-tightness.
But this check system is not rigorous, easy test leakage micropore, and also to be cleaned after detecting, drying duct endoporus,
Add time and the difficulty of next procedure.So that the operating efficiency of duct products production is low.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems, provide a kind of pipe fitting differential pressure air-tightness detection device,
Without measured piece being immersed in water the air-tightness of pipe fitting can be detected.
For the attainment of one's purpose, technical scheme provided by the utility model is：
A kind of pipe fitting differential pressure air-tightness detection device that the utility model is related to, including source of the gas, detecting system and plug
Control system, described detecting system include the first air accumulator, five-way valve and some groups of detection units, the first air accumulator and source of the gas
Connection, described detection unit include controller, controller be provided with inflation house steward, two first inflate branch pipes, two second
Branch pipe is inflated, the first inflation branch pipe and the second inflation branch pipe connect with inflation house steward, and the inlet end for inflating house steward is provided with inflation
Switch, the inlet end for inflating house steward are connected with the first air accumulator, and the exhaust end for inflating house steward is provided with air discharge cook, and described five is logical
Valve is located on the inflation house steward between the first inflation branch pipe and the second inflation branch pipe, and five-way valve is connected with the first air accumulator, each
Detection unit is provided with a differential pressure pick-up, and the low-pressure end of differential pressure pick-up is connected with one of them first inflation branch pipe, poor
The high-pressure side of pressure sensor is connected with one of them second inflation branch pipe；Described plug control system include the second air accumulator and
Some plug cylinders, the second air accumulator are connected with source of the gas, and plug cylinder is connected with the second air accumulator, are all provided with each plug cylinder
There is plug, plug corresponds with detection unit, and the connecting line of the second air accumulator and plug cylinder is provided with breather valve.
Preferably, the first described air accumulator is linked as two, and detection unit is six, and three are connected on each first air accumulator
Individual detection unit；The second described air accumulator is one, and six plug cylinders are connected on the second air accumulator.
Preferably, the outlet of described source of the gas is provided with bigeminy part, and the first described air accumulator and the second air accumulator are connected to
On bigeminy part, bigeminy part plays a part of air filtration and decompression, and voltage stabilizing is carried out to source of the gas.
Preferably, described gas-filled switching tube includes pressure regulator valve, pressure switch and the two logical normally closed solenoid valves being sequentially connected, institute
The air discharge cook stated includes the pressure sensor and two usual open electromagnetic valves being sequentially connected.
Preferably, the connecting line of the first described air accumulator and five-way valve is provided with pressure regulator valve.
Using technical scheme provided by the utility model, compared with prior art, have the advantages that：
The first inflation branch pipe and second where the utility model detects measured piece and balance element by differential pressure pick-up fills
The pressure differential of gas in gas branch pipe, the problem of measured piece is with the presence or absence of leakage is judged with this, the detection means can detect more simultaneously
Root is tested the air-tightness of pipe fitting, and detection efficiency is high；When detecting pipe fitting due to the device, without pipe fitting to be immersed in water or foam
In agent, the pipe fitting after detection without cleaning and dries, and does not interfere with the quality of rod member, simplifies the step of pipe fitting detects.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model pipe fitting differential pressure air-tightness detection device；
Fig. 2 be the utility model detection unit structural representation and its with five-way valve, differential pressure pick-up, measured piece, flat
The annexation figure of weighing apparatus part.
Illustrate：1 source of the gas, 11 bigeminy parts, 21 second air accumulators, 22 plug cylinders, 23 breather valves, 31 first gas storage
Tank, 32 gas-filled switching tubes, 33 controllers, 34 differential pressure pick-ups, 35 air discharge cooks, 36 five-way valves, 37 pressure regulator valves, 331 inflation house stewards,
332 first inflation branch pipes, 333 second inflation branch pipes, 321 pressure regulator valves, 322 pressure switches, 323 liang of logical normally closed solenoid valves, 351 pressures
Force snesor, 352 liang of usual open electromagnetic valves.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the embodiments, it is real below
Apply example to be used to illustrate the utility model, but be not limited to the scope of the utility model.
With reference to shown in accompanying drawing 1, a kind of pipe fitting differential pressure air-tightness detection device that the utility model is related to, including source of the gas 1,
Detecting system and plug control system, a bigeminy part 11 is provided with described source of the gas 1, it is right for the filtering and decompression of air
Source of the gas 1 carries out voltage stabilizing.
Described detecting system includes the first air accumulator 31, five-way valve 36 and some groups of detection units, the first air accumulator 31
Be connected with the bigeminy part 11 on source of the gas 1, described detection unit includes controller 33, the structure of controller 33 as shown in Figure 2,
It includes inflating 331, two first inflation branch pipes 332 of house steward and two second inflation branch pipes 333, one of them described first
Inflation branch pipe 332 is used to inflate into measured piece 4, and one of them second inflation branch pipe 333 is used to ventilate into balance element 5, institute
The balance element 5 stated is to be detected as the good pipe fitting of air-tightness.Two first described inflation branch pipes 332 are mutually corresponding,
And connected with inflation house steward 331, described two second inflation branch pipes 333 are mutually corresponding, and are connected with inflation house steward 331.
With reference to shown in accompanying drawing 1, the inlet end of inflation house steward 331 is provided with gas-filled switching tube 32, and gas-filled switching tube 32 includes being used to adjust
Pressure regulator valve 321, the logical normally closed solenoid valve 323 of pressure switch 322 and two of the blowing pressure are saved, the inlet end of inflation house steward 331 passes through
Gas-filled switching tube 32 is connected with the first air accumulator 31.The exhaust end of inflation house steward 331 is provided with air discharge cook 35, described air discharge cook
35 include being used for the pressure sensor 351 for detecting air pressure level, and two usual open electromagnetic valves 352.
With reference to shown in attached Fig. 1 and 2, described five-way valve 36 be located at the first inflation branch pipe 332 and the second inflation branch pipe 333 it
Between inflation house steward 331 on, five-way valve 36 is connected with the first air accumulator 31, and connecting line is provided with and is used to adjust the tune of air pressure
Pressure valve 37.Each detection unit is provided with a differential pressure pick-up 34, and the low-pressure end of differential pressure pick-up 34 first fills with another
Gas branch pipe 332 is connected, and the high-pressure side of differential pressure pick-up 34 is connected with another the second inflation branch pipe 333, and differential pressure pick-up 34 is used
The gas pressure difference between branch pipe 333 is inflated in the inflation branch pipe 332 and second of detection first.The present embodiment includes two first
Air accumulator 31 and six detection units, each first air accumulator 31 are wherein three detection unit supply.
With reference to shown in accompanying drawing 1, described plug control system includes second air accumulator 21 and six plug cylinders 22,
Second air accumulator 21 is connected with the bigeminy part 11 on source of the gas 1, and six plug cylinders 22 pass through the air accumulator of breather valve 23 and second
21 connections, the second air accumulator 21 are that six plug cylinders 22 are inflated, and be equipped with plug on each plug cylinder 22 (does not mark in figure
Note), plug and detection unit correspond, and for blocking the end of measured piece 4, gas is from measured piece when preventing from inflating and detecting
The other end leakage.
During detection, measured piece 4 is arranged on one of them first inflation branch pipe 332 of controller 33, balance element is consolidated
It is scheduled on one of them second inflation branch pipe 333, the low-pressure end of differential pressure pick-up 34 is then connected to another the first inflation
On branch pipe 332, high-pressure side is connected on another the second inflation branch pipe 333；The breather valve 23 in plug control system is opened, is opened
Dynamic plug cylinder 22, makes the plug on plug cylinder block the other end of measured piece 4；Generally electricity is closed to two on gas-filled switching tube 32
Magnet valve 323 is powered, and the first air accumulator 31 is inflated to controller 33, and gas inflates the and of branch pipe 332 by inflating house steward 331, first
Second inflation branch pipe 333, gassy in measured piece 4 and balance element 5, when the pressure sensor 351 in air discharge cook 35 detects
During to air pressure and stable gas pressure, two logical normally closed solenoid valves 323 power off, and two usual open electromagnetic valves 352 are powered, and stop to controller 33
Interior inflation and exhaust, while five-way valve 36 is powered, the inflation branch pipe 332 and second of cut-out first inflates the passage between branch pipe 333,
First inflation branch pipe 332 and second inflates branch pipe 333 and forms two mutual disconnected spaces, and differential pressure pick-up 34 detects the respectively
One inflation branch pipe 332 and second inflates the air pressure in branch pipe 333, if draught head be present, illustrates measured piece gas leakage, counter to know, if
Without draught head, then illustrate that measured piece air-tightness is good.
The utility model is described in detail above in association with embodiment, but the content be only it is of the present utility model compared with
Good embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all to be made according to present utility model application scope
Equivalent change and improvement etc., all should still fall within patent covering scope of the present utility model.
Claims (5)
- A kind of 1. pipe fitting differential pressure air-tightness detection device, it is characterised in that：It includes source of the gas, detecting system and plug control system System, described detecting system include the first air accumulator, five-way valve and some groups of detection units, the first air accumulator and are connected with source of the gas, Described detection unit includes controller, and controller is provided with inflation house steward, two the first inflation branch pipes, two the second inflation branch Pipe, the first inflation branch pipe and the second inflation branch pipe connect with inflation house steward, and the inlet end for inflating house steward is provided with gas-filled switching tube, fills The inlet end of gas house steward is connected with the first air accumulator, and the exhaust end for inflating house steward is provided with air discharge cook, and described five-way valve is located at On inflation house steward between first inflation branch pipe and the second inflation branch pipe, five-way valve is connected with the first air accumulator, and each detection is single Member is provided with a differential pressure pick-up, and the low-pressure end of differential pressure pick-up is connected with one of them first inflation branch pipe, differential pressure sensing The high-pressure side of device is connected with one of them second inflation branch pipe；Described plug control system includes the second air accumulator and some plug cylinders, the second air accumulator are connected with source of the gas, plug Cylinder is connected with the second air accumulator, and plug is equipped with each plug cylinder, and plug corresponds with detection unit, the second gas storage The connecting line of tank and plug cylinder is provided with breather valve.
- 2. pipe fitting differential pressure air-tightness detection device according to claim 1, it is characterised in that：The first described air accumulator Two are linked as, detection unit is six, and three detection units are connected on each first air accumulator；The second described air accumulator is one It is individual, six plug cylinders are connected on the second air accumulator.
- 3. pipe fitting differential pressure air-tightness detection device according to claim 1, it is characterised in that：The outlet of described source of the gas Provided with bigeminy part, the first described air accumulator and the second air accumulator are connected on bigeminy part.
- 4. pipe fitting differential pressure air-tightness detection device according to claim 1, it is characterised in that：Described gas-filled switching tube bag Including the pressure regulator valve being sequentially connected, pressure switch and two logical normally closed solenoid valves, described air discharge cook includes the pressure being sequentially connected Sensor and two usual open electromagnetic valves.
- 5. pipe fitting differential pressure air-tightness detection device according to claim 1, it is characterised in that：The first described air accumulator Pressure regulator valve is provided with the connecting line of five-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721114425.0U CN207123371U (en) | 2017-09-01 | 2017-09-01 | A kind of pipe fitting differential pressure air-tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721114425.0U CN207123371U (en) | 2017-09-01 | 2017-09-01 | A kind of pipe fitting differential pressure air-tightness detection device |
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| CN207123371U true CN207123371U (en) | 2018-03-20 |
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| CN201721114425.0U Active CN207123371U (en) | 2017-09-01 | 2017-09-01 | A kind of pipe fitting differential pressure air-tightness detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211490A (en) * | 2018-09-14 | 2019-01-15 | 克诺尔商用车系统（重庆）有限公司 | Air-tightness detection device |
-
2017
- 2017-09-01 CN CN201721114425.0U patent/CN207123371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211490A (en) * | 2018-09-14 | 2019-01-15 | 克诺尔商用车系统（重庆）有限公司 | Air-tightness detection device |
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