CN112268665A - Method for detecting leakage of welding seam of structural member cavity - Google Patents
Method for detecting leakage of welding seam of structural member cavity Download PDFInfo
- Publication number
- CN112268665A CN112268665A CN202011260494.9A CN202011260494A CN112268665A CN 112268665 A CN112268665 A CN 112268665A CN 202011260494 A CN202011260494 A CN 202011260494A CN 112268665 A CN112268665 A CN 112268665A
- Authority
- CN
- China
- Prior art keywords
- oil tank
- blocking plate
- sealing cover
- structural member
- oil
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 210000003437 trachea Anatomy 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
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/146—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators 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
- G01M3/26—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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3236—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 containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—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 containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a method for detecting leakage of a welding seam of a structural member cavity, which belongs to the technical field of engineering machinery and is characterized by comprising the following steps of: 1) manufacturing a blocking plate capable of blocking an upper opening of an oil tank, processing a sealing surface on one end surface of the blocking plate, and processing an annular sealing groove on the sealing surface; 2) the blocking plate is fixed on the oil tank by the combining piece, and the corresponding opening on the oil tank is blocked by the blocking plate; 3) smearing soapy water at the outer side wind-running position of the oil tank; 4) compressed air is injected into the air pipe through an oil discharge port at the bottom of the oil tank, and the pressure drop value of the compressed air and the bubble performance of the soapy water of the welding line on the outer side of the oil tank are observed. Compared with the traditional detection method, the method has the advantages of rapidness, high efficiency and accuracy, and can detect the leakage position of the welding line of the oil tank cavity under the condition of no joint test run, thereby protecting the safety of equipment.
Description
Technical Field
The invention belongs to the technical field of engineering construction equipment, and particularly relates to a method for detecting leakage of a welding seam of a cavity of a structural member.
Background
The scraper vehicle is one kind of trackless equipment for mine and is used widely in underground mine. The main structure part of the forklift mainly comprises a bucket, a large arm, a front frame, a rear water-cooled radiator assembly, a support baffle assembly and the like. The forklift is driven by diesel oil, three oil tanks are arranged on a body of the rear rack, the three oil tanks comprise a fuel tank and a hydraulic drive oil tank, and the body is a welded structural part, so that the tightness of the oil tanks must be ensured in consideration of safety.
At present, diesel oil is smeared on one side of a welding line in a cavity in primary detection of the oil tank of the mine car, lime powder is brushed on the outer side of the cavity to observe color change, and whether a leakage point exists is judged.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for detecting the leakage of the welding line of the cavity of the structural member, which solves the problem of poor detection effect of the welding line of the oil tank of the existing mine car.
The invention is realized in such a way that a method for detecting the leakage of the welding seam of the cavity of the structural member is characterized by comprising the following steps:
1) manufacturing a blocking plate capable of blocking an upper opening of an oil tank, processing a sealing surface on one end surface of the blocking plate, and processing an annular sealing groove on the sealing surface;
2) the blocking plate is fixed on the oil tank by the combining piece, and the corresponding opening on the oil tank is blocked by the blocking plate;
3) smearing soapy water at the outer side wind-running position of the oil tank;
4) compressed air is injected into the air pipe through an oil discharge port at the bottom of the oil tank, and the pressure drop value of the compressed air and the bubble performance of the soapy water of the welding line on the outer side of the oil tank are observed.
Compared with the traditional detection method, the method has the advantages of rapidness, high efficiency and accuracy, and can detect the leakage position of the welding line of the oil tank cavity under the condition of no joint test run, thereby protecting the safety of equipment.
In the above technical scheme, preferably, the closure plate comprises a fuel tank cover plate sealing cover, a liquid level meter seat sealing cover, a transparent cover seat sealing cover, a fuel filling seat sealing cover and a liquid level meter flange sealing cover.
Drawings
Fig. 1 is a schematic view of the installation structure of the closure plate and the oil tank of the present invention.
1. A fuel tank cover plate sealing cover; 2. a liquid level meter seat sealing cover; 3. the transparent seat seals the cover; 4. an oil filling seat sealing cover; 5. the liquid level meter flange seals the lid.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to overcome the defect of poor detection effect of the welding line of the oil tank of the existing mine car, the invention particularly provides a method for detecting the leakage of the welding line of a cavity of a structural member. To further illustrate the structure of the present invention, the following detailed description is made with reference to the accompanying drawings:
a method for detecting leakage of a welding seam of a cavity of a structural member comprises the following steps:
1) and manufacturing a blocking plate capable of blocking an upper opening of the oil tank, processing a sealing surface on one end surface of the blocking plate, and processing an annular sealing groove on the sealing surface. In this embodiment, as shown in fig. 1, specifically, the blocking plate includes a fuel tank cover plate sealing cover 1, a liquid level meter seat sealing cover 2, a transparent cover seat sealing cover 3, a fuel filling seat sealing cover 4, and a liquid level meter flange sealing cover 5, and the blocking plate is an iron casting, and a light emitting surface is processed on one end surface of the blocking plate to serve as a sealing surface for sealing a rim smooth surface of an opening corresponding to the fuel tank. And processing an annular sealing groove surrounding a corresponding opening of the oil tank on the sealing surface.
2) The closure plate is fixed on the oil tank by the closure member, and the corresponding opening on the oil tank is plugged by the closure plate. In this embodiment, the tank cover plate sealing cover, the liquid level meter seat sealing cover, the transparent cover seat sealing cover, the oil filling seat sealing cover and the liquid level meter flange sealing cover are provided with starting bolt holes, the opening edge position of the oil tank is provided with bolt holes corresponding to the starting bolt holes, and the tank cover plate sealing cover, the liquid level meter flange sealing cover, the oil filling seat sealing cover, the transparent cover seat sealing cover and the transparent cover seat sealing cover are closed through bolt nuts penetrating through the bolt holes. An O-shaped sealing ring is additionally arranged in the annular sealing groove.
3) And soapy water is smeared at the outer side wind-moving position of the oil tank. In particular, the soapy water may be replaced by any foamable and non-corrosive liquid.
4) Compressed air is injected into the air pipe through an oil discharge port at the bottom of the oil tank, and the pressure drop value of the compressed air and the bubble performance of the soapy water of the welding line on the outer side of the oil tank are observed. In this embodiment, the compressed air generating device adopts the air pump, establishes ties the manometer on the trachea with the oil discharge opening intercommunication of oil tank bottom for observe and take notes atmospheric pressure and change.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. A method for detecting leakage of a welding seam of a cavity of a structural member is characterized by comprising the following steps:
1) manufacturing a blocking plate capable of blocking an upper opening of an oil tank, processing a sealing surface on one end surface of the blocking plate, and processing an annular sealing groove on the sealing surface;
2) the blocking plate is fixed on the oil tank by the combining piece, and the corresponding opening on the oil tank is blocked by the blocking plate;
3) smearing soapy water at the outer side wind-running position of the oil tank;
4) compressed air is injected into the air pipe through an oil discharge port at the bottom of the oil tank, and the pressure drop value of the compressed air and the bubble performance of the soapy water of the welding line on the outer side of the oil tank are observed.
2. The method for detecting leakage of a weld of a cavity of a structural member according to claim 1, wherein: the closure plate comprises a fuel tank cover plate sealing cover, a liquid level meter seat sealing cover, a transparent cover seat sealing cover, a fuel filling seat sealing cover and a liquid level meter flange sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011260494.9A CN112268665A (en) | 2020-11-12 | 2020-11-12 | Method for detecting leakage of welding seam of structural member cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011260494.9A CN112268665A (en) | 2020-11-12 | 2020-11-12 | Method for detecting leakage of welding seam of structural member cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112268665A true CN112268665A (en) | 2021-01-26 |
Family
ID=74339090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011260494.9A Pending CN112268665A (en) | 2020-11-12 | 2020-11-12 | Method for detecting leakage of welding seam of structural member cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112268665A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202793715U (en) * | 2012-09-22 | 2013-03-13 | 中国十七冶集团有限公司 | Easy and convenient valve pressure testing device |
| CN103364153A (en) * | 2013-08-01 | 2013-10-23 | 江苏亨特集团华特电气有限公司 | Air pressure leakage check method for transformer oil tank |
| CN103794334A (en) * | 2014-02-13 | 2014-05-14 | 保定天威集团特变电气有限公司 | Transformer rectangular pipe opening blocking plate sealing structure and sealing method |
| CN204419728U (en) * | 2014-12-12 | 2015-06-24 | 中国一冶集团有限公司 | The closure plate device of maintenance hydraulic fluid port |
| CN205384120U (en) * | 2016-01-26 | 2016-07-13 | 浙江乐鼎波纹管有限公司 | Pressure seal pressure testing frock |
| CN109323806A (en) * | 2018-11-20 | 2019-02-12 | 芜湖国睿兆伏电子有限公司 | A kind of oil-immersed transformer leakage test method |
| CN109404365A (en) * | 2018-12-14 | 2019-03-01 | 龙工(福建)液压有限公司 | A kind of method of gas-liquid mixed detection hydraulic cylinder |
| CN110672284A (en) * | 2019-10-18 | 2020-01-10 | 华翔翔能电气股份有限公司 | Transformer box body air tightness detection device |
| CN210293570U (en) * | 2019-10-10 | 2020-04-10 | 陕西北方风力机电有限责任公司 | Flange cover air tightness detection device |
| CN210513577U (en) * | 2019-09-23 | 2020-05-12 | 龙工(福建)机械有限公司 | Oil tank gas tightness detection device |
| CN111678654A (en) * | 2020-05-29 | 2020-09-18 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | Transformer oil tank oil leakage grading detection device and detection method |
-
2020
- 2020-11-12 CN CN202011260494.9A patent/CN112268665A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202793715U (en) * | 2012-09-22 | 2013-03-13 | 中国十七冶集团有限公司 | Easy and convenient valve pressure testing device |
| CN103364153A (en) * | 2013-08-01 | 2013-10-23 | 江苏亨特集团华特电气有限公司 | Air pressure leakage check method for transformer oil tank |
| CN103794334A (en) * | 2014-02-13 | 2014-05-14 | 保定天威集团特变电气有限公司 | Transformer rectangular pipe opening blocking plate sealing structure and sealing method |
| CN204419728U (en) * | 2014-12-12 | 2015-06-24 | 中国一冶集团有限公司 | The closure plate device of maintenance hydraulic fluid port |
| CN205384120U (en) * | 2016-01-26 | 2016-07-13 | 浙江乐鼎波纹管有限公司 | Pressure seal pressure testing frock |
| CN109323806A (en) * | 2018-11-20 | 2019-02-12 | 芜湖国睿兆伏电子有限公司 | A kind of oil-immersed transformer leakage test method |
| CN109404365A (en) * | 2018-12-14 | 2019-03-01 | 龙工(福建)液压有限公司 | A kind of method of gas-liquid mixed detection hydraulic cylinder |
| CN210513577U (en) * | 2019-09-23 | 2020-05-12 | 龙工(福建)机械有限公司 | Oil tank gas tightness detection device |
| CN210293570U (en) * | 2019-10-10 | 2020-04-10 | 陕西北方风力机电有限责任公司 | Flange cover air tightness detection device |
| CN110672284A (en) * | 2019-10-18 | 2020-01-10 | 华翔翔能电气股份有限公司 | Transformer box body air tightness detection device |
| CN111678654A (en) * | 2020-05-29 | 2020-09-18 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | Transformer oil tank oil leakage grading detection device and detection method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210126 |
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| RJ01 | Rejection of invention patent application after publication |