CN113280984A - Copper pipe leakage detection system - Google Patents
Copper pipe leakage detection system Download PDFInfo
- Publication number
- CN113280984A CN113280984A CN202110603653.9A CN202110603653A CN113280984A CN 113280984 A CN113280984 A CN 113280984A CN 202110603653 A CN202110603653 A CN 202110603653A CN 113280984 A CN113280984 A CN 113280984A
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- gas injection
- helium
- vacuum
- gas
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 88
- 239000010949 copper Substances 0.000 title claims abstract description 88
- 238000001514 detection method Methods 0.000 title claims description 23
- 239000007789 gas Substances 0.000 claims abstract description 96
- 239000001307 helium Substances 0.000 claims abstract description 61
- 229910052734 helium Inorganic materials 0.000 claims abstract description 61
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000002347 injection Methods 0.000 claims abstract description 58
- 239000007924 injection Substances 0.000 claims abstract description 58
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000007689 inspection Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- G01M3/04—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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
-
- 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
- G01M3/225—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 welds
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Economics (AREA)
- Public Health (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- General Health & Medical Sciences (AREA)
- General Business, Economics & Management (AREA)
- Water Supply & Treatment (AREA)
- Theoretical Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a copper pipe leakage detecting system, which can prevent gas leakage by checking the welding state of a copper pipe, and is characterized by comprising the following components: a frame part for placing a copper pipe so as to be inspected; a vacuum holding part which is arranged on the side surface of the frame part and can keep the vacuum state in the copper pipe; a gas injection part which injects helium gas into the copper tube vacuumized by the vacuum holding part; and a monitoring part for checking and monitoring whether the helium gas injected into the copper tube through the gas injection part is discharged through the welding part of the copper tube.
Description
Technical Field
The present invention relates to a copper pipe leakage detecting system, and more particularly, to a copper pipe leakage detecting system capable of preventing gas leakage by checking a welding state of a copper pipe.
Background
Conventionally, as shown in fig. 1, a device including a gas tank 1, a measurement unit 5, a connection pipe 6, and a leak detection spray 7 has been used, in which the gas tank 1 stores nitrogen gas therein, and an open/close valve 2 is provided at an upper portion thereof; the measuring part 5 is provided with a residual quantity pressure gauge 3 and a discharge pressure gauge 4, the residual quantity pressure gauge 3 measures the pressure of residual quantity in the gas tank, and the discharge pressure gauge 4 measures the discharge pressure when the gas in the gas tank is discharged; the connection pipe 6 has a coupling 13 at one end and the other end connected to the measurement unit 5 so that the gas discharged through the measurement unit 5 can be injected into the copper pipe 51; in order to confirm whether the gas injected into the copper tube and the capillary tube leaks or not by the above-described apparatus, a leak detection mist 7 is sprayed to the joint portion of the copper tube and the capillary tube, and after the mist 7 is sprayed by the above-described structure, whether a good product or a defective product is determined depending on whether or not a bubble is generated in the welded portion.
As described above, since most of the conventional apparatuses are manually operated, there are disadvantages in that the operation efficiency is low, a comfortable working environment cannot be formed using foreign substances such as spray, particularly, a cold water tank against which a liquid for moisture is applied is adversely affected, and each operation is separately performed when it is confirmed whether or not a large amount of copper pipes and capillary pipes are leaked, and in that the operation time is long.
[ Prior Art document ]
[ patent document ]
(patent document 0001) Korean registered Utility model publication No. 20-0212534
Disclosure of Invention
Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a copper pipe leak detection system which can improve the accuracy of inspection without damaging the working environment by injecting helium gas into the interior of a copper pipe to inspect whether or not a welded portion is leaking.
A copper tube leak detection inspection system according to an embodiment of the present invention for achieving the above object may include a frame portion for placing a copper tube so that inspection can be performed; a vacuum holding part which is arranged on the side surface of the frame part and can keep the vacuum state in the copper pipe; a gas injection part which injects helium gas into the copper tube vacuumized by the vacuum holding part; and a monitoring part for checking and monitoring whether the helium gas injected into the copper tube through the gas injection part is discharged through the welding part of the copper tube.
The vacuum holding part may include: a vacuum nozzle which is arranged on the side surface of the frame part and is connected with one side inlet of the copper pipe; and the vacuum pump is connected with the vacuum nozzle and can make the inside of the copper pipe become vacuum.
The gas injection part may include: a gas injection nozzle connected to the other side inlet of the copper pipe for injecting helium gas; a helium tank connected to the gas injection nozzle, supplying helium gas; and a start button electrically connected to the helium tank so that the helium tank can be opened and closed.
The gas injection nozzle may be provided with an open/close valve so that helium gas supplied from the helium tank can be injected into the copper pipe.
A hook may be provided on the front surface of the frame portion so that the gas injection nozzle of the gas injection portion can be hung.
The monitoring part may include: a helium gas injection detector for detecting whether the injection amount of helium gas injected into the copper pipe from the gas injection part is maintained or reduced; and the display screen can display the measurement result of the helium injection inspection tester.
As described above, according to the copper pipe leak detection system of the present invention, the inside of the copper pipe is evacuated and then helium gas is injected, and the leakage of the welding portion is checked by measuring the leakage amount of the helium gas, so that the operation is simple and convenient, the accuracy of the check can be improved, the operation environment is not damaged by using the helium gas, and the satisfaction of the worker can be brought.
Drawings
Fig. 1 is a schematic diagram of a conventional leakage sensing device for a copper tube and a capillary tube.
Fig. 2 is a perspective view showing a copper pipe leak detection system in accordance with the present invention.
Fig. 3 is a block diagram illustrating a copper pipe leak detection system in accordance with the present invention.
Fig. 4 is an enlarged perspective view showing a gas injection nozzle of the copper pipe leak detection system according to the present invention.
Fig. 5 is a plan view showing an inspection state of the copper pipe leak detection system according to the present invention.
Description of the reference symbols
10: copper pipe 100: frame part
110: the hook 200: vacuum holding part
210: the vacuum nozzle 220: vacuum pump
300: gas injection nozzle 311: open-close valve
320: helium tank 330: start button
400: the monitoring section 410: helium gas injection inspection tester
420: display screen
Detailed Description
While the invention is susceptible to various modifications and alternative embodiments, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. However, the present invention is not limited to the specific embodiments, but should be understood to include all modifications, equivalents, and alternatives within the spirit and scope of the present invention.
The embodiments of the present invention are not limited to the specific forms shown in the drawings, but are exaggerated for clarity. Although specific terms are used in the description, they are used only for describing the present invention, and are not used for limiting the meaning or the scope of the right of the present invention described in the patent claims.
In the present specification, the term "and/or" includes at least one of the components listed in the front and back. The term "connected" means that the element is directly connected to another element or indirectly connected to another element through another element. In this specification, the singular forms also include the plural forms unless specifically mentioned in a sentence. In addition, the constituent elements, steps, actions, and elements referred to by "including" or "including" as used in the specification mean the presence or addition of one or more other constituent elements, steps, actions, and elements.
In the description of the embodiments, the description that each layer (film), region, pattern or structure is formed on "upper surface (on)" or "lower surface (under)" of a substrate, each layer (film), region, pad or pattern includes all cases where the layer is formed directly (d i rect ly) or with another layer interposed therebetween. The upper/upper and lower/lower of each layer will be described with reference to the drawings.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Fig. 2 is a perspective view showing a copper pipe leak detection system in accordance with the present invention, fig. 3 is a structural view showing the copper pipe leak detection system in accordance with the present invention, fig. 4 is an enlarged perspective view showing a gas injection nozzle of the copper pipe leak detection system in accordance with the present invention, and fig. 5 is a plan view showing an inspection state of the copper pipe leak detection system in accordance with the present invention.
As shown in fig. 2 to 5, the copper pipe leak detection system according to the present invention may include a frame portion 100, a vacuum holding portion 200, a gas injection portion 300, and a monitoring portion 400.
The frame portion 100 is formed in a rectangular frame shape, and after the copper pipe 10 is placed on the frame portion 100, a leak test is performed on the welded portion.
Further, a plurality of hooks 110 are provided on the front surface of the frame portion 100 so that a gas injection nozzle 310 of the gas injection portion 300 described below can be hooked.
Also, the hook 110 can be made of
The configuration is configured to prevent the gas injection nozzle 310 from falling downward.
The vacuum holding portion 200 is provided on the upper side of the frame portion 100, and can hold the inside of the copper tube 10 in a vacuum state.
The vacuum maintaining part 200 may include a vacuum nozzle 210 and a vacuum pump 220.
The vacuum nozzle 210 is provided at a side surface of the frame portion 100, and may be connected to one side inlet of the copper pipe 10 in an insertion manner.
In addition, the vacuum nozzle 210 may be provided according to the number of copper pipes 10 to be inspected.
The vacuum pump 220 may be connected to the vacuum nozzle 210 through a pipe so that the inside of the copper pipe 10 is maintained in a vacuum state.
The gas injection part 300 may inject helium gas into the copper pipe 10 evacuated by the vacuum holding part 200.
The gas injection part 300 may include a gas injection nozzle 310, a helium tank 320, and an activation button 330.
The gas injection nozzle 301 is connected to the other side inlet of the copper pipe 10 blocking the vacuum nozzle 210, and allows helium gas to be injected into the inside of the copper pipe 10.
The gas injection nozzles 310 are provided in accordance with the number of copper pipes 10, and can be hung on the hanger 110 for storage.
The gas injection nozzle 310 is provided with an open/close valve 311 so that the helium gas supplied from the helium tank 320 can be injected into the copper pipe 10.
The helium tank 320 is connected to the gas injection nozzle 310, and helium gas may be supplied through the gas injection nozzle 310.
The start button 330 is electrically connected to the helium tank 320 such that opening and closing of the helium tank 320 allows helium gas to flow into the gas injection nozzle 310.
The monitoring unit 400 may check and monitor whether or not the helium gas injected into the copper pipe 10 through the gas injection unit 300 is discharged through the welded portion of the copper pipe 10.
The monitoring section 400 may include a helium gas injection inspection scope 410 and a display screen 420.
The helium gas injection inspection instrument 410 is provided on the upper portion of the frame portion 100, and can inspect the injection amount of helium gas injected into the copper pipe 10 from the gas injection portion 300.
In other words, whether the injection amount of the helium gas injected into the inside of the copper pipe 10 from the helium gas injection inspection tester 410 is maintained as it is or is decreased is measured, and when the helium gas inside the copper pipe 10 is decreased, it can be seen that a gap is generated at the welding portion of the copper pipe 10, so that the helium gas is leaked through the welding portion.
The display screen 420 is disposed on the upper portion of the frame portion 100, and can display and inform the result of the measurement by the helium inspection tester 410.
The operation state of the copper pipe leak detection system according to the present invention constituted by the system as described above was observed as follows.
When the copper tube 10 to be inspected is placed on the frame portion 100, a vacuum nozzle 210 is connected to one side inlet of the copper tube 10 in an inserted manner, and the inside of the copper tube 10 can be made vacuum by a vacuum pump 220.
And, the gas injection nozzle 310 is connected to the other side inlet of the copper pipe 10 connected to the vacuum nozzle 210, and helium gas supplied to the gas injection nozzle 310 may be injected into the inside of the copper pipe 10 by supplying helium gas to the gas injection nozzle 310 through the helium gas tank 320 in a vacuum state inside the copper pipe 10.
Meanwhile, when the helium gas is injected into the copper pipe 10 through the gas injection part 300, after measuring whether the injection amount of the helium gas injected into the copper pipe 10 from the helium gas injection inspection tester 410 is maintained as it is or is decreased, the result of the measurement may be displayed through the display screen 420.
As described above, the inside of the copper tube 10 is vacuumed by the vacuum holding part 200 with respect to the welded portion of the copper tube 10, and after helium gas is injected into the inside of the copper tube 10 through the gas injection nozzle 310, the amount of helium gas injection is measured by the helium gas detector 410, and when it is measured that the amount of helium gas injected into the inside of the copper tube 10 is decreased, the result of the measurement is notified through the display screen 420, so that the defect of the welded portion of the copper tube 10 can be checked.
As described above, the present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by those having ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of the claims.
Claims (6)
1. A copper pipe leak detection system, comprising:
a frame part for placing a copper pipe so as to be inspected;
a vacuum holding part which is arranged on the side surface of the frame part and can keep the vacuum state in the copper pipe;
a gas injection part which injects helium gas into the copper tube vacuumized by the vacuum holding part; and
and a monitoring part for checking and monitoring whether the helium gas injected into the copper tube through the gas injection part is discharged through the welding part of the copper tube.
2. The copper tube leak detection system as defined in claim 1, wherein the vacuum hold section comprises:
a vacuum nozzle which is arranged on the side surface of the frame part and is connected with one side inlet of the copper pipe; and
and the vacuum pump is connected with the vacuum nozzle and can make the inside of the copper pipe become vacuum.
3. The copper tube leak detection system as defined in claim 1, wherein the gas injection section comprises:
a gas injection nozzle connected to the other side inlet of the copper pipe for injecting helium gas;
a helium tank connected to the gas injection nozzle, supplying helium gas; and
and a start button electrically connected with the helium tank so that the helium tank can be opened and closed.
4. The copper tube leak detection system of claim 3,
the gas injection nozzle is provided with an open/close valve so that helium gas supplied from the helium tank can be injected into the copper pipe.
5. The copper tube leak detection system of claim 1,
a hook is provided on the front surface of the frame portion so that the gas injection nozzle of the gas injection portion can be hung.
6. The copper tube leak detection system as defined in claim 1, wherein the monitoring portion comprises:
a helium gas injection inspection instrument for inspecting whether the injection amount of the helium gas injected into the copper pipe from the gas injection part is kept as it is or reduced; and
and the display screen can display the measurement result of the helium injection inspection tester.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210050047A KR20220143479A (en) | 2021-04-16 | 2021-04-16 | Leak inspection system for copper pipe |
| KR10-2021-0050047 | 2021-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113280984A true CN113280984A (en) | 2021-08-20 |
Family
ID=77282764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110603653.9A Pending CN113280984A (en) | 2021-04-16 | 2021-05-31 | Copper pipe leakage detection system |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20220143479A (en) |
| CN (1) | CN113280984A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117890024A (en) * | 2024-03-14 | 2024-04-16 | 山西三水能源股份有限公司 | Heat supply pipeline tightness detection equipment for heat supply pipe network |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200212534Y1 (en) * | 2000-08-17 | 2001-02-15 | 김세용 | Device for Sensing Leakage in cool and hot water copper pipes and capillary Tubes |
| JP2004028778A (en) * | 2002-06-25 | 2004-01-29 | Denso Airs Corp | Leak inspection method and leak inspection device |
| JP2005085909A (en) * | 2003-09-05 | 2005-03-31 | Shin Etsu Handotai Co Ltd | Method for inspecting leakage in process tube |
| WO2011132365A1 (en) * | 2010-04-22 | 2011-10-27 | 株式会社アルバック | Leakage detection method and vacuum processing device |
| KR20140129717A (en) * | 2013-04-30 | 2014-11-07 | 황해덕 | A hose pipe of leak test method and thereof leak test device for the vehicle air conditioner pipe laying |
| CN110068430A (en) * | 2019-05-09 | 2019-07-30 | 中南大学 | A kind of leakage test method of aerospace composite tank |
| KR20210025174A (en) * | 2019-08-27 | 2021-03-09 | 주식회사 와이디산업 | leakage detection apparatus of capillary tube unit |
-
2021
- 2021-04-16 KR KR1020210050047A patent/KR20220143479A/en not_active Application Discontinuation
- 2021-05-31 CN CN202110603653.9A patent/CN113280984A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200212534Y1 (en) * | 2000-08-17 | 2001-02-15 | 김세용 | Device for Sensing Leakage in cool and hot water copper pipes and capillary Tubes |
| JP2004028778A (en) * | 2002-06-25 | 2004-01-29 | Denso Airs Corp | Leak inspection method and leak inspection device |
| JP2005085909A (en) * | 2003-09-05 | 2005-03-31 | Shin Etsu Handotai Co Ltd | Method for inspecting leakage in process tube |
| WO2011132365A1 (en) * | 2010-04-22 | 2011-10-27 | 株式会社アルバック | Leakage detection method and vacuum processing device |
| KR20140129717A (en) * | 2013-04-30 | 2014-11-07 | 황해덕 | A hose pipe of leak test method and thereof leak test device for the vehicle air conditioner pipe laying |
| CN110068430A (en) * | 2019-05-09 | 2019-07-30 | 中南大学 | A kind of leakage test method of aerospace composite tank |
| KR20210025174A (en) * | 2019-08-27 | 2021-03-09 | 주식회사 와이디산업 | leakage detection apparatus of capillary tube unit |
Non-Patent Citations (1)
| Title |
|---|
| 庄友明: "《制冷装置设计》", vol. 3, 31 August 2017, 厦门大学出版社, pages: 124 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117890024A (en) * | 2024-03-14 | 2024-04-16 | 山西三水能源股份有限公司 | Heat supply pipeline tightness detection equipment for heat supply pipe network |
| CN117890024B (en) * | 2024-03-14 | 2024-05-24 | 山西三水能源股份有限公司 | Heat supply pipeline tightness detection equipment for heat supply pipe network |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220143479A (en) | 2022-10-25 |
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