CN110646863B - Pipeline exhaust detection method - Google Patents
Pipeline exhaust detection method Download PDFInfo
- Publication number
- CN110646863B CN110646863B CN201910828059.2A CN201910828059A CN110646863B CN 110646863 B CN110646863 B CN 110646863B CN 201910828059 A CN201910828059 A CN 201910828059A CN 110646863 B CN110646863 B CN 110646863B
- Authority
- CN
- China
- Prior art keywords
- channel
- detected
- exhaust
- detection
- communicated
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- G01V9/007—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by detecting gases or particles representative of underground layers at or near the surface
Abstract
The invention belongs to the technology of pipeline detection, and particularly relates to a method for detecting whether exhaust in a complex shell channel is smooth or not. The invention relates to a pipeline exhaust detection method, which comprises the steps of arranging a detection channel communicated with a channel to be detected, wherein the channel to be detected and the detection channel are both communicated with an air inlet, removing other exhaust ports, connecting a flowmeter on the detection channel, and when the flowmeter detects the flow of gas, the channel to be detected is not smooth in exhaust, otherwise, the channel to be detected is smooth in exhaust. The method can conveniently and accurately judge the smooth exhaust condition of the complex channel in the product, can effectively screen out unqualified products, improves the inspection qualified rate of the products, greatly reduces the loss caused by the subsequent assembly of unqualified products, can detect the unqualified shell by 100 percent as proved by tests, and has great practical application value.
Description
Technical Field
The invention belongs to the technology of pipeline detection, and particularly relates to a method for detecting whether exhaust in a complex shell channel is smooth or not.
Background
At present, a regulator of a certain model has a large amount of air leakage of products, and the reason for the air leakage is found to be caused by unsmooth exhaust of a shell. Through analysis, the product has the defects of complex structure, large quantity of internal pipelines, high processing difficulty, large quantity of crossed holes, burrs, gaps, dislocation and the like in the internal pipelines of the product. The blockage is easy to happen, so that the air flow in the product can not be smoothly discharged, and various hidden dangers are caused.
The prior art lacks an effective detection and investigation method for the exhaust blockage condition with a complex pipeline inside, thereby greatly influencing the qualification rate of products.
Disclosure of Invention
The purpose of the invention is: the method for rapidly and accurately detecting whether the inner pipeline is unobstructed is provided.
The technical scheme of the invention is as follows: a pipeline exhaust detection method is characterized in that a detection channel communicated with a channel to be detected is arranged, the channel to be detected and the detection channel are both communicated with an air inlet, other exhaust ports are eliminated, a flow meter is connected to the detection channel, when the flow meter detects the flow of gas, the channel to be detected is not smooth in exhaust, otherwise, the channel to be detected is smooth in exhaust.
After one channel to be detected is detected, the outlet of the channel is sealed, the exhaust port of the other channel to be detected is opened, the flowmeter is connected, the rest exhaust ports are sealed, and whether the flowmeter can detect the gas flow or not is still utilized to judge the smoothness of the exhaust of the channel to be detected.
When only one exhaust port of the channel to be detected is arranged, the detection channel is a channel communicated with the channel to be detected and is connected with the flowmeter so as to detect the smooth exhaust of the rear section of the channel to be detected.
The flowmeter connecting port is a rubber hose and is hermetically connected with the channel to be detected.
The flowmeter connector is sleeved with a switching tube suitable for exhaust ports of different sizes.
The flow of the flowmeter is 0-5L/min.
The flow of the flowmeter is 0-1L/min.
The flow rate of the gas input by the gas inlet is 1.0L/min-5L/min.
A pressure reducer and a flow restrictor are arranged at the air inlet.
The invention has the advantages that: according to the pipeline exhaust detection method, the other exhaust ports are sealed, only the channel to be detected and the detection channel are left, the flow meter is arranged in the detection channel, and whether the channel to be detected is blocked or not is quickly and accurately judged by detecting whether airflow exists or not through the flow meter. The method can conveniently and accurately judge the smooth exhaust condition of the complex channel in the product, can effectively screen out unqualified products, improves the inspection qualified rate of the products, greatly reduces the loss caused by the assembly of the unqualified products in the follow-up process, and can check out the unqualified shell by 100 percent proved by tests.
Drawings
Fig. 1 is a schematic view of the distribution of pipes in a method for detecting exhaust gas in pipes according to an embodiment of the present invention.
Figure 2 is a schematic view of a flow meter configuration,
wherein, 1-nozzle 2-shell channel air outlet 3-valve 4-diaphragm 5-nozzle 6-hose 7-flowmeter 8-tester 9-current limiter.
Detailed Description
The present invention is described in further detail below.
The invention relates to a pipeline exhaust detection method, which is characterized in that a detection channel communicated with a channel to be detected is arranged, the channel to be detected and the detection channel are both communicated with an air inlet, other exhaust ports are eliminated, a flow meter is connected to the detection channel, when the flow meter detects the flow of gas, the channel to be detected is not smooth in exhaust, otherwise, the channel to be detected is smooth in exhaust.
After one channel to be detected is detected, the outlet of the channel is sealed, the exhaust port of the other channel to be detected is opened, the flowmeter is connected, the rest exhaust ports are sealed, and whether the flowmeter can detect the gas flow or not is still utilized to judge the smoothness of the exhaust of the channel to be detected.
When only one exhaust port of the channel to be detected is arranged, the detection channel is a channel communicated with the channel to be detected and is connected with the flowmeter so as to detect the smooth exhaust of the rear section of the channel to be detected.
The pipeline exhaust detection method only has the to-be-detected channel and the detection channel left by sealing the rest exhaust ports, and the flowmeter is arranged in the detection channel, so that whether the to-be-detected channel is blocked or not is quickly and accurately judged by detecting whether airflow exists or not through the flowmeter.
In an embodiment, referring to fig. 1, a schematic structural diagram of a product to be tested, a regulator of a certain type, is given. In the figure, the distribution of the internal complex pipeline is given, wherein the nozzle 1 is divided into three paths, which are respectively communicated with the cavity A, the cavity B and the cavity P. Wherein, the area of the A cavity forms a first channel, and the outlet of the A cavity is the valve 3. The area of the cavity B is a second channel, and the outlet of the cavity B is a shell channel air outlet hole 2. The cavity A and the cavity B are isolated by a diaphragm 4 and a valve 3. The P cavity is communicated with the L1 cavity and the L2 cavity and is provided with a joint nozzle 5 to form a third channel.
In this embodiment, the pipeline detection method of the present invention needs to detect three channels of the cavity a, the cavity B, and the cavity P, respectively, and the process is as follows:
first, first channel detection
1. Connecting the shell: connecting the shell nozzle 1 with a test device for inputting gas by using a transition nozzle;
2. setting a channel: blocking the connecting nozzle 5, detaching the diaphragm 4, and communicating the hose 6 with the air outlet hole 2 of the shell channel;
3. input pressure: opening an air inlet switch, and inputting 1.0-1.5L/min of oxygen or nitrogen into the connecting nozzle 1 through a pressure reducer;
4. detection with the flow meter 7: the gas is through A chamber and B chamber, and wherein, A chamber passageway is the first passageway that awaits measuring, and B chamber is for being provided with flowmeter 7's detection passageway, and if flowmeter 7 reading is 0 then the first passageway of casing is discharged smoothly, if have the flow reading, then think that the first passageway of casing is discharged smoothly.
Second, second channel detection
1. Connecting the shell: connecting the shell nozzle 1 with a test device for inputting gas by using a transition nozzle;
2. setting a channel: the valve 3 blocks the cavity A, the membrane 4 is disassembled, and the hose 6 is communicated with the nozzle 5;
3. input pressure: opening an air inlet switch, and inputting 1.0-1.5L/min of oxygen or nitrogen into the connecting nozzle 1 through a pressure reducer;
4. detection with the flow meter 7: the gas is through B chamber and P chamber, and wherein, B chamber passageway is the second passageway that awaits measuring, and the P chamber is for being provided with flowmeter 7's detection passageway, and if flowmeter 7 reading is 0 then casing second passageway exhaust unobstructed, if have the flow reading, then think that casing second passageway exhaust is not smooth.
Third, third channel detection
1. Connecting the shell: connecting the shell nozzle 1 with a test device for inputting gas by using a transition nozzle;
2. setting a channel: the valve 7 blocks the cavity A, the diaphragm 4 is disassembled, and the hose 6 is communicated with the air outlet hole 2 of the shell channel;
3. input pressure: opening an air inlet switch, and inputting 1.0-1.5L/min of oxygen or nitrogen into the connecting nozzle 1 through a pressure reducer;
4. detection with the flow meter 7: and the gas flows into a cavity B and a cavity P, wherein the cavity P is a third channel to be detected, the cavity B is a detection channel provided with a flowmeter 7, if the reading of the flowmeter 7 is 0, the third channel of the shell exhausts smoothly, and if the reading of the flow rate is 0, the third channel of the shell exhausts smoothly.
In conclusion, the method can conveniently and accurately judge the smooth exhaust condition of the complex channel in the product, can effectively screen out unqualified products, improves the inspection qualified rate of the product, can detect 100% blocked unqualified shells through tests, greatly reduces the loss caused by the subsequent assembly of unqualified products, and has great practical application value.
Claims (8)
1. A pipeline exhaust detection method is characterized in that a detection channel communicated with a channel to be detected is arranged, the channel to be detected and the detection channel are both communicated with an air inlet, other exhaust ports are eliminated, a flow meter is connected to the detection channel, when the flow meter detects the flow of gas, the channel to be detected is not smooth in exhaust, and otherwise, the channel to be detected is smooth in exhaust.
2. The method for detecting the exhaust gas of the pipeline according to claim 1, wherein after the detection of one of the channels to be detected is completed, the outlet of the channel is sealed, the exhaust port of the other channel to be detected communicated with the detection channel is opened, the flow meter is connected to the detection channel, and the rest of the exhaust ports are sealed, and whether the flow meter can detect the flow of the gas or not is still used for judging the smoothness of the exhaust gas of the channel to be detected.
3. The method for detecting the exhaust gas of the pipeline according to claim 1, wherein when only one exhaust port is arranged in the channel to be detected, the detection channel is a channel which is communicated with the channel to be detected and is connected with a flowmeter so as to detect the smoothness of the exhaust gas at the rear section of the channel to be detected;
the detection channel is communicated with the channel to be detected and the air inlet.
4. The method for detecting the exhaust gas of the pipeline according to claim 1, wherein the flow meter connecting port is a rubber hose, and the flow meter is hermetically connected with the channel to be detected through the rubber hose.
5. The method according to claim 1, wherein adapter tubes adapted to exhaust ports of different sizes are sleeved on the flow meter connection ports.
6. The method for detecting pipeline exhaust gas according to claim 1, wherein the flow meter has a range of 0 to 5L/min.
7. The method of claim 6, wherein the inlet input gas flow rate is 1.0L/min to 5L/min.
8. The duct exhaust detection method according to claim 5, wherein a pressure reducer and a flow restrictor are provided at the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828059.2A CN110646863B (en) | 2019-09-03 | 2019-09-03 | Pipeline exhaust detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828059.2A CN110646863B (en) | 2019-09-03 | 2019-09-03 | Pipeline exhaust detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110646863A CN110646863A (en) | 2020-01-03 |
| CN110646863B true CN110646863B (en) | 2022-04-29 |
Family
ID=69010099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910828059.2A Active CN110646863B (en) | 2019-09-03 | 2019-09-03 | Pipeline exhaust detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110646863B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202195920U (en) * | 2011-09-19 | 2012-04-18 | 苏州恒辉科技有限公司 | Air tightness testing device for filter case |
| CN103134646A (en) * | 2011-11-23 | 2013-06-05 | 比亚迪股份有限公司 | Water tightness detection system of pipeline and detection method thereof |
| CN103348781A (en) * | 2010-12-30 | 2013-10-09 | 施耐德电气It公司 | System and method for air containment zone air leakage detection |
| CN106153270A (en) * | 2015-03-27 | 2016-11-23 | 天津市卓阳无损检测有限公司 | A kind of pipeline girth weld lossless detection method |
| CN208206420U (en) * | 2017-12-20 | 2018-12-07 | 重庆海逸科技有限公司 | Drainage pipeline device for detecting sealability |
| CN109946025A (en) * | 2019-04-12 | 2019-06-28 | 武汉理工大学 | It is a kind of can multichannel independent assortment leakage testing device and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6131441A (en) * | 1996-12-02 | 2000-10-17 | Berube; Guy | Apparatus and method for isolating or testing a pipe segment |
| WO2008009303A1 (en) * | 2006-07-20 | 2008-01-24 | Siemens Aktiengesellschaft | Method for the diagnosis of a blockage of an impulse line in a pressure measurement transducer, and pressure measurement transducer |
| CA2599353C (en) * | 2006-09-06 | 2011-05-24 | Lg Electronics Inc. | Dryer with clogging detecting function |
| JP4952470B2 (en) * | 2007-09-19 | 2012-06-13 | 和光純薬工業株式会社 | Dispensing device and method for determining discharge state in dispensing device |
| CN203705010U (en) * | 2014-01-07 | 2014-07-09 | 姜和信 | Material level detection device of dry quenching dust remover |
| JP5942065B1 (en) * | 2015-08-03 | 2016-06-29 | 株式会社ジェイ・イー・ティ | Sensor unit and airtightness inspection device |
| CN205664855U (en) * | 2016-06-06 | 2016-10-26 | 中建八局第一建设有限公司 | Pipe detection device |
| CN208350139U (en) * | 2018-06-05 | 2019-01-08 | 柳州嘉和热系统有限公司 | Blockage of condenser detection device |
-
2019
- 2019-09-03 CN CN201910828059.2A patent/CN110646863B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348781A (en) * | 2010-12-30 | 2013-10-09 | 施耐德电气It公司 | System and method for air containment zone air leakage detection |
| CN202195920U (en) * | 2011-09-19 | 2012-04-18 | 苏州恒辉科技有限公司 | Air tightness testing device for filter case |
| CN103134646A (en) * | 2011-11-23 | 2013-06-05 | 比亚迪股份有限公司 | Water tightness detection system of pipeline and detection method thereof |
| CN106153270A (en) * | 2015-03-27 | 2016-11-23 | 天津市卓阳无损检测有限公司 | A kind of pipeline girth weld lossless detection method |
| CN208206420U (en) * | 2017-12-20 | 2018-12-07 | 重庆海逸科技有限公司 | Drainage pipeline device for detecting sealability |
| CN109946025A (en) * | 2019-04-12 | 2019-06-28 | 武汉理工大学 | It is a kind of can multichannel independent assortment leakage testing device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110646863A (en) | 2020-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202471374U (en) | Multifunctional airtightness detection apparatus | |
| CN101133310B (en) | Leak indicator comprising a sniffer probe | |
| TW201721119A (en) | Device and method for pressure measurement at a test gas inlet | |
| CN111272341A (en) | Battery box electrolyte leakage detection device and electrolyte leakage detection method | |
| CN110987324A (en) | Fuel cell air tightness testing device and testing method | |
| US20070240493A1 (en) | Sprayer-sniffer probe | |
| CN110646863B (en) | Pipeline exhaust detection method | |
| CN214233547U (en) | Dynamic gas distribution system with wide gas distribution concentration and high accuracy | |
| CN212007656U (en) | Battery box electrolyte leakage detection device | |
| CN210464833U (en) | Novel fuel cell pressure maintaining experiment bench | |
| ATE430926T1 (en) | DEVICE AND METHOD FOR ONLINE DETECTION OF LEAKS IN VALVE SEALS AND DEFECTIVE FLOW DEFLECTERS | |
| WO2020118996A1 (en) | Air-tightness detection device for pipeline | |
| CN217032700U (en) | Gas meter detection device | |
| CN203606093U (en) | Circulation characteristic detector for micro-channel heat exchanger | |
| CN209027600U (en) | A kind of coke oven, blast furnace gas measure Special Automatic block-resistant type pitot tube flowmeter | |
| CN209559444U (en) | A kind of pipeline or die waterway intelligence detecting leakage press flow measuring system | |
| CN209166602U (en) | Positive pressure method gas flow caliberating device | |
| CN207215404U (en) | A kind of mixing wastewater with air valve detection device | |
| CN216925970U (en) | Product sealing performance detection system | |
| CN207336479U (en) | Mobile gas tester calibrating apparatus | |
| CN106706283B (en) | A kind of automatic pressure obtaning device | |
| CN207866436U (en) | A kind of airtight verifying attachment of holder | |
| EP3553490A1 (en) | Dual-mode pressure reducer | |
| CN204556554U (en) | A kind of on-line water flushing device of pressurized air humidity | |
| CN219682555U (en) | Double-outer-discharge filter structure of biosafety cabinet and biosafety cabinet |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |