CN106124138A - Fast accurate tubing leakage point detector and using method thereof - Google Patents
Fast accurate tubing leakage point detector and using method thereof Download PDFInfo
- Publication number
- CN106124138A CN106124138A CN201610665975.5A CN201610665975A CN106124138A CN 106124138 A CN106124138 A CN 106124138A CN 201610665975 A CN201610665975 A CN 201610665975A CN 106124138 A CN106124138 A CN 106124138A
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- Prior art keywords
- switch
- vacuum
- pressure
- leakage point
- point detector
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Classifications
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- 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
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/222—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/80—Indicating pH value
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a kind of fast accurate tubing leakage point detector and using method thereof, including ammonia storage tank, pressure switch, four-way pipe, vacuum switch, Pressure gauge, test splice, vacuum pump；The gas outlet of ammonia storage tank connects one end of pressure switch；The other end of pressure switch, Pressure gauge, one end of vacuum switch, test splice are connected by four-way pipe；The other end of vacuum switch connects the exhaust tube of vacuum pump.The present invention is by the improvement in structure, it is possible to use the characteristic of ammonia, hunts leak aluminum pipe, reaches higher precision.Compare traditional helium mass spectrometer leak method: cost of the present invention is low compared with helium mass analyzer, simple to operate；The present invention can be easy to use the leak detection of PH reagent paper, and therefore process can judge the feature of position of leak point accurately.Comparing the conventional method carrying out by compressed air and suds and hunting leak, the present invention can identify more tiny leakage point, and contributing to hunts leak for the welding of aluminum pipe provides more convenient, check system accurately.
Description
Technical field
The present invention relates to detector, in particular it relates to fast accurate tubing leakage point detector and using method thereof.
Background technology
First the concept that the present invention relates to is illustrated.
Helium mass spectrometer leak detector: carry out a kind of equipment hunted leak by gas analyser detection helium.
PH reagent paper: a kind of ammonia of meeting can occur the reagent paper of color change, can decide whether ammonia by the change of color
Leakage.
Vacuum pump: utilize the method such as machinery, physics, chemistry to be bled and the equipment that obtains vacuum to taking out container.
Aluminum pipe after weld formation, need to be by certain measure inspection welding quality and material whether existing defects, the side of leak detection
Method generally has: helium mass spectrometer leak method, compressed air fill suds leak detecting etc..
The leak detection of existing aluminum pipe is mostly by helium mass spectrometer leak method, and the feature of the method is, equipment manufacturing cost is high, operator
Member need to cannot judge position, concrete leak point through professional training and leak detection process.And tubing leak detection conventional in other industry
Method such as logical compressed air the required precision that all can not meet leak detection by suds etc., cannot accurately know for tiny weld seam
Not.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of fast accurate tubing leakage point detector.
A kind of fast accurate tubing leakage point detector provided according to the present invention, including ammonia storage tank, pressure switch, four-way
Pipe, vacuum switch, Pressure gauge, test splice, vacuum pump；
The gas outlet of ammonia storage tank connects one end of pressure switch；
The other end of pressure switch, Pressure gauge, one end of vacuum switch, test splice are connected by four-way pipe；
The other end of vacuum switch connects the exhaust tube of vacuum pump.
Preferably, casing is also included；
Ammonia storage tank, pressure switch, four-way pipe, vacuum switch, Pressure gauge, vacuum pump are installed in casing；
Test splice stretches out from casing.
Preferably, test splice is aluminum pipe jointing.
Preferably, casing includes instrument face plate；
Being provided with transparent cover plate on instrument face plate, manometric surface is close to the inner side of transparent cover plate；
The first switching control key, second switch control key, vacuum-pump power supply switch it is provided with on instrument face plate；
First switching control key electrical connection pressure switch；
Second switch control key electrical connection vacuum switch；
Vacuum-pump power supply switch electrical connection vacuum pump.
Preferably, the first switching control key, second switch control key are knob, driving lever or button；Pressure switch, vacuum
Switch is electromagnetic switch.
Preferably, instrument face plate is positioned at the front of casing, there is angle between front and the horizontal plane of casing；Test splice
Stretch out from the side lower of casing.
The using method of a kind of above-mentioned fast accurate tubing leakage point detector according to present invention offer, including:
Step 1: closing presure switchs, and is tightly connected with aluminum pipe by test splice；
Step 2: open vacuum switch；
Step 3: make vacuum pump, by four-way pipe and vacuum switch, aluminum pipe be carried out evacuation, until Pressure gauge display sets
Negative pressure；
Step 4: close vacuum pump, closes vacuum switch；
Step 5: open pressure switch, controls ammonia storage tank and fills liquefied ammonia in the aluminum pipe of negative pressure；
Step 6: utilize the pressure in Pressure gauge display aluminum pipe.
Compared with prior art, the present invention has a following beneficial effect:
1, the present invention is by the improvement in structure, it is possible to use the characteristic of ammonia, hunts leak aluminum pipe, reaches higher
Precision.
2, traditional helium mass spectrometer leak method is compared: cost of the present invention is low compared with helium mass analyzer, simple to operate；The present invention can
Being easy to use the leak detection of PH reagent paper, therefore process can judge the feature of position of leak point accurately.
3, comparing the conventional method carrying out by compressed air and suds and hunting leak, the present invention can identify more tiny letting out
Leak source, contributing to hunts leak for the welding of aluminum pipe provides more convenient, check system accurately.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
The primary structure schematic diagram of the fast accurate tubing leakage point detector that Fig. 1 provides for the present invention.
The external structure schematic diagram of the fast accurate tubing leakage point detector that Fig. 2 provides for the present invention.
In figure:
1-ammonia storage tank
2-pressure switch
3-four-way pipe
4-Pressure gauge
5-vacuum switch
6-test splice
7-vacuum pump
8-exhaust tube
9-exhaustor
10-casing
11-casing front surface
12-body side
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some changes and improvements.These broadly fall into the present invention
Protection domain.
As shown in Figure 1 and Figure 2, according to the present invention provide a kind of fast accurate tubing leakage point detector, including ammonia storage tank,
Pressure switch, four-way pipe, vacuum switch, Pressure gauge, test splice, vacuum pump；The gas outlet of ammonia storage tank connects pressure switch
One end；The other end of pressure switch, Pressure gauge, one end of vacuum switch, test splice are connected by four-way pipe；Vacuum switch
The other end connects the exhaust tube of vacuum pump.Pressure gauge can be high Low Pressure gauge.
Described fast accurate tubing leakage point detector also includes casing；Ammonia storage tank, pressure switch, four-way pipe, vacuum switch,
Pressure gauge, vacuum pump are installed in casing；Test splice stretches out from casing.Test splice is aluminum pipe jointing.Casing
Including instrument face plate；Being provided with transparent cover plate on instrument face plate, manometric surface is close to the inner side of transparent cover plate；Instrument face
The first switching control key, second switch control key it is provided with on plate；First switching control key electrical connection pressure switch；Second switch
Control key electrical connection vacuum switch；Vacuum-pump power supply switch electrical connection vacuum pump.First switching control key, second switch control key
For knob, driving lever or button；Pressure switch, vacuum switch are electromagnetic switch.Instrument face plate is positioned at the front of casing, casing
Angle is there is between front and horizontal plane；Test splice stretches out from the side lower of casing.
The using method of a kind of above-mentioned fast accurate tubing leakage point detector according to present invention offer, including:
Step 1: closing presure switchs, and is tightly connected with aluminum pipe by test splice；
Step 2: open vacuum switch；
Step 3: make vacuum pump, by four-way pipe and vacuum switch, aluminum pipe be carried out evacuation, until Pressure gauge display sets
Negative pressure；
Step 4: close vacuum pump, closes vacuum switch；
Step 5: open pressure switch, controls ammonia storage tank and fills liquefied ammonia in the aluminum pipe of negative pressure；
Step 6: utilize the pressure in Pressure gauge display aluminum pipe.
More specifically, vacuum switch, pressure switch, high-low pressure table and test splice are connected by a four-way pipe,
Vacuum switch connects the exhaust tube of vacuum pump, and pressure switch connects ammonia storage tank.Vacuum pump, vacuum switch and high Low Pressure gauge are respectively mounted
In casing, test splice stretches out from casing.After filling certain ammonia by the regulation of switch in tested aluminum pipe, use PH
Reagent paper is coated near solder joint and hunts leak.If existing defects at Al pipe butt welding, the then variable color of PH reagent paper.The Main Function of each parts
As follows:
Test splice: test connects tested aluminum pipe before starting.
Vacuum pump: the air in aluminum pipe is extracted out, causes negative pressure.
Vacuum switch: after vacuum pump end-of-job, closes vacuum switch, blocks the connection of aluminum pipe and vacuum pump.
Pressure switch: pressure switch controls ammonia storage tank and fills liquefied ammonia in the tested aluminum pipe of negative pressure.
High Low Pressure gauge: the pressure in high Low Pressure gauge display test aluminum pipe.
By said structure, the work process of the present invention is as follows:
Tested aluminum pipe is tightly connected with test splice.
Open vacuum switch, tested aluminum pipe is carried out evacuation, until Pressure gauge shows certain negative pressure, close vacuum and open
Close.
Open the pressure switch on ammonia storage tank valve and panel.
Observing whether Pressure gauge is malleation, pressure reaches 5～8Kg/cm2Closing presure switchs.(now Pressure gauge display number
Value is aluminum overpressure, i.e. carrying shield pressure).
Heat pipe leak detection is carried out with PH reagent paper.
After reagent paper has been hunted leak, open vacuum switch, start vacuum pump, carry out evacuation until Pressure gauge shows certain
Negative pressure.
Close vacuum switch, vacuum pump and ammonia storage tank valve, take off heat pipe.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, the feature in embodiments herein and embodiment can any phase
Combination mutually.
Claims (7)
1. a fast accurate tubing leakage point detector, it is characterised in that include that ammonia storage tank, pressure switch, four-way pipe, vacuum are opened
Pass, Pressure gauge, test splice, vacuum pump；
The gas outlet of ammonia storage tank connects one end of pressure switch；
The other end of pressure switch, Pressure gauge, one end of vacuum switch, test splice are connected by four-way pipe；
The other end of vacuum switch connects the exhaust tube of vacuum pump.
Fast accurate tubing leakage point detector the most according to claim 1, it is characterised in that also include casing；
Ammonia storage tank, pressure switch, four-way pipe, vacuum switch, Pressure gauge, vacuum pump are installed in casing；
Test splice stretches out from casing.
Fast accurate tubing leakage point detector the most according to claim 1, it is characterised in that test splice is that aluminum pipe connects
Joint.
Fast accurate tubing leakage point detector the most according to claim 2, it is characterised in that casing includes instrument face plate；
Being provided with transparent cover plate on instrument face plate, manometric surface is close to the inner side of transparent cover plate；
The first switching control key, second switch control key, vacuum-pump power supply switch it is provided with on instrument face plate；
First switching control key electrical connection pressure switch；
Second switch control key electrical connection vacuum switch；
Vacuum-pump power supply switch electrical connection vacuum pump.
Fast accurate tubing leakage point detector the most according to claim 2, it is characterised in that the first switching control key,
Two switching control keys are knob, driving lever or button；Pressure switch, vacuum switch are electromagnetic switch.
Fast accurate tubing leakage point detector the most according to claim 2, it is characterised in that instrument face plate is positioned at casing
, between front and the horizontal plane of casing, there is angle in front；Test splice stretches out from the side lower of casing.
7. a using method for the fast accurate tubing leakage point detector according to any one of claim 1 to 6, its feature exists
In, including:
Step 1: closing presure switchs, and is tightly connected with aluminum pipe by test splice；
Step 2: open vacuum switch；
Step 3: make vacuum pump, by four-way pipe and vacuum switch, aluminum pipe be carried out evacuation, until Pressure gauge display setting is negative
Pressure；
Step 4: close vacuum pump, closes vacuum switch；
Step 5: open pressure switch, controls ammonia storage tank and fills liquefied ammonia in the aluminum pipe of negative pressure；
Step 6: utilize the pressure in Pressure gauge display aluminum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665975.5A CN106124138A (en) | 2016-08-12 | 2016-08-12 | Fast accurate tubing leakage point detector and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665975.5A CN106124138A (en) | 2016-08-12 | 2016-08-12 | Fast accurate tubing leakage point detector and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106124138A true CN106124138A (en) | 2016-11-16 |
Family
ID=57257791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610665975.5A Pending CN106124138A (en) | 2016-08-12 | 2016-08-12 | Fast accurate tubing leakage point detector and using method thereof |
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| Country | Link |
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| CN (1) | CN106124138A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941438A (en) * | 2017-12-22 | 2018-04-20 | 南京新核复合材料有限公司 | A kind of device and detection method for detecting sealing leakage in GRP pipe hand paste |
| CN108827552A (en) * | 2018-06-08 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | System and method for detecting sealing performance of lithium battery after liquid injection |
| CN112857694A (en) * | 2021-02-25 | 2021-05-28 | 广州科方生物技术股份有限公司 | Movable constant-pressure sealing detection system |
| CN114151726A (en) * | 2021-11-23 | 2022-03-08 | 内蒙古航天红岗机械有限公司 | Nondestructive testing tool for sealing state of end socket part of inner container of hydrogen storage cylinder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6197547A (en) * | 1984-10-19 | 1986-05-16 | Nippon Oil & Fats Co Ltd | Leakage inspection |
| CN2297726Y (en) * | 1997-02-26 | 1998-11-18 | 廖文钦 | Adjustable Air Pressure Leak Detector |
| CN202329961U (en) * | 2011-11-23 | 2012-07-11 | 安徽淮化股份有限公司 | Leakage detection device for U-shaped waste heat boiler pipe bundle |
| CN104155064A (en) * | 2014-07-23 | 2014-11-19 | 温州科逸卫浴设备有限公司 | On-line leak detection device for drainage system pipeline |
-
2016
- 2016-08-12 CN CN201610665975.5A patent/CN106124138A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6197547A (en) * | 1984-10-19 | 1986-05-16 | Nippon Oil & Fats Co Ltd | Leakage inspection |
| CN2297726Y (en) * | 1997-02-26 | 1998-11-18 | 廖文钦 | Adjustable Air Pressure Leak Detector |
| CN202329961U (en) * | 2011-11-23 | 2012-07-11 | 安徽淮化股份有限公司 | Leakage detection device for U-shaped waste heat boiler pipe bundle |
| CN104155064A (en) * | 2014-07-23 | 2014-11-19 | 温州科逸卫浴设备有限公司 | On-line leak detection device for drainage system pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 胡耀志: "氨检漏器的研究", 《真空技术报导》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941438A (en) * | 2017-12-22 | 2018-04-20 | 南京新核复合材料有限公司 | A kind of device and detection method for detecting sealing leakage in GRP pipe hand paste |
| CN108827552A (en) * | 2018-06-08 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | System and method for detecting sealing performance of lithium battery after liquid injection |
| CN112857694A (en) * | 2021-02-25 | 2021-05-28 | 广州科方生物技术股份有限公司 | Movable constant-pressure sealing detection system |
| CN114151726A (en) * | 2021-11-23 | 2022-03-08 | 内蒙古航天红岗机械有限公司 | Nondestructive testing tool for sealing state of end socket part of inner container of hydrogen storage cylinder |
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Application publication date: 20161116 |