CN103913274A - Leakage detection process of electric heating tube flange - Google Patents
Leakage detection process of electric heating tube flange Download PDFInfo
- Publication number
- CN103913274A CN103913274A CN201410089805.8A CN201410089805A CN103913274A CN 103913274 A CN103913274 A CN 103913274A CN 201410089805 A CN201410089805 A CN 201410089805A CN 103913274 A CN103913274 A CN 103913274A
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- China
- Prior art keywords
- leakage detection
- electric heating
- electrothermal tube
- flange
- heating tube
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Abstract
The invention relates to a leakage detection process of an electric heating tube flange. The process includes the steps of preparation, leakage detection, marking and tube taking. During leakage detection, electric heating tubes sealed by adhesives are sleeved with sealing rings and are put into a leakage detection device one by one, the leakage detection device is tightly pressed by the flange and is then filled with compressed air till the pressure value displayed on a pressure gage on the leakage detection device is 1.2 MPa, the pressure is kept for 1 min or longer, water is fed into an inner cavity of the flange, and whether small bubbles emerge from welds of the flange or not is inspected to judge whether the electric heating tubes are qualified or not in sequence. The process provides a scientific optimization scheme for leakage detection the electric heating tube flange, guarantees the leakproofness of the electric heating tube flange, reduces the probability of accidents caused by poor leakproofness of the electric heating tube flange and improves the production efficiency and sealing quality of the electric heating tube flange.
Description
Technical field
The present invention relates to electrothermal tube manufacture technology field, is a kind of leakage detecting process of electrothermal tube ring flange specifically.
Background technology
Electrothermal tube is applied commonplace in life, after electrothermal tube sealing, need the sealing property of electrothermal tube to detect, prevent the not good fortuitous event that occurs in use of sealing because of electrothermal tube, can enhance productivity for ensureing electrothermal tube impermeability quality when, just need the technological process of an optimization and operation steps and suitable technical parameter to coach.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of leakage detecting process of electrothermal tube ring flange.
Technical matters to be solved by this invention realizes by the following technical solutions:
A leakage detecting process for electrothermal tube ring flange, this technique comprises the following steps:
(1) prepare: carry out the preliminary work before leak detection, comprise that whether inspection tracheae and water pipe be unimpeded, whether air pressure reaches requirement;
(2) leak detection: the electrothermal tube after sealing is put to O-ring seal, and pack in leakage detection apparatus by propping up, supported flange dish, put into again pressurized air, until the tensimeter on device reaches 1.2MPa, retention time >=1min, add water at ring flange cella simultaneously, whether observe ring flange weld has minute bubbles to emerge, if any, judge that electrothermal tube is defective;
(3) mark: to underproof electrothermal tube, carry out mark, place in addition, to repair and examine again in time;
(4) get pipe: treat that device compressed air discharges, take out electrothermal tube, be placed in water tank and soak completely one hour, then take out and dry, detect its sealing sealing property.
In the time that air themperature is lower, the air release on leakage detection apparatus should heat, in order to avoid impact venting.
The invention has the beneficial effects as follows: the present invention provides the prioritization scheme of a science to the leak detection work of electrothermal tube ring flange, ensure the leakproofness of electrothermal tube ring flange, reduce the probability of the mishap generation causing because electrothermal tube ring flange leakproofness is bad, improved production efficiency and the seal quality of electrothermal tube ring flange.
Embodiment
For technological means and creation characteristic that the present invention realizes are easy to understand, below the present invention is further set forth.
A leakage detecting process for electrothermal tube ring flange, this technique comprises the following steps:
(1) prepare: carry out the preliminary work before leak detection, comprise that whether inspection tracheae and water pipe be unimpeded, whether air pressure reaches requirement;
(2) leak detection: the electrothermal tube after sealing is put to O-ring seal, and pack in leakage detection apparatus by propping up, supported flange dish, put into again pressurized air, until the tensimeter on device reaches 1.2MPa, retention time >=1min, add water at ring flange cella simultaneously, whether observe ring flange weld has minute bubbles to emerge, if any, judge that electrothermal tube is defective;
(3) mark: to underproof electrothermal tube, carry out mark, place in addition, to repair and examine again in time;
(4) get pipe: treat that device compressed air discharges, take out electrothermal tube, be placed in water tank and soak completely one hour, then take out and dry, detect its sealing sealing property.
In the time that air themperature is lower, the air release on leakage detection apparatus should heat, in order to avoid impact venting.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what in above-described embodiment and instructions, describe is principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a leakage detecting process for electrothermal tube ring flange, is characterized in that: this technique comprises the following steps:
(1) prepare: carry out the preliminary work before leak detection, comprise that whether inspection tracheae and water pipe be unimpeded, whether air pressure reaches requirement;
(2) leak detection: the electrothermal tube after sealing is put to O-ring seal, and pack in leakage detection apparatus by propping up, supported flange dish, put into again pressurized air, until the tensimeter on device reaches 1.2MPa, retention time >=1min, add water at ring flange cella simultaneously, whether observe ring flange weld has minute bubbles to emerge, if any, judge that electrothermal tube is defective;
(3) mark: to underproof electrothermal tube, carry out mark, place in addition;
(4) get pipe: treat that device compressed air discharges, take out electrothermal tube, be placed in water tank and soak completely one hour, then take out and dry, detect its sealing sealing property.
2. a kind of leakage detecting process of electrothermal tube ring flange according to claim 1, is characterized in that: in the time that air themperature is lower, the air release on leakage detection apparatus should heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089805.8A CN103913274A (en) | 2014-03-12 | 2014-03-12 | Leakage detection process of electric heating tube flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089805.8A CN103913274A (en) | 2014-03-12 | 2014-03-12 | Leakage detection process of electric heating tube flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103913274A true CN103913274A (en) | 2014-07-09 |
Family
ID=51039125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410089805.8A Pending CN103913274A (en) | 2014-03-12 | 2014-03-12 | Leakage detection process of electric heating tube flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103913274A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5359933A (en) * | 1976-11-10 | 1978-05-30 | Hitachi Ltd | Electric heater |
| CN2784901Y (en) * | 2005-03-25 | 2006-05-31 | 许建中 | Weldment detector |
| CN201600225U (en) * | 2009-12-29 | 2010-10-06 | 杭州万向传动轴有限公司 | Air tightness test table for transmission shaft of flange plate |
| CN201917440U (en) * | 2010-11-18 | 2011-08-03 | 安徽好来西科技有限公司 | Vertical type equipment for detecting sealing performance of electric heater |
| CN201945012U (en) * | 2011-03-09 | 2011-08-24 | 广东惠洁宝电器有限公司 | Electric water heater with novel structure |
| CN201974274U (en) * | 2010-11-18 | 2011-09-14 | 安徽好来西科技有限公司 | Horizontal type equipment used for detecting tightness of electric heater |
| CN103454049A (en) * | 2013-09-04 | 2013-12-18 | 东莞兆舜有机硅新材料科技有限公司 | Method for detecting sealing performance of LED packing glue |
-
2014
- 2014-03-12 CN CN201410089805.8A patent/CN103913274A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5359933A (en) * | 1976-11-10 | 1978-05-30 | Hitachi Ltd | Electric heater |
| CN2784901Y (en) * | 2005-03-25 | 2006-05-31 | 许建中 | Weldment detector |
| CN201600225U (en) * | 2009-12-29 | 2010-10-06 | 杭州万向传动轴有限公司 | Air tightness test table for transmission shaft of flange plate |
| CN201917440U (en) * | 2010-11-18 | 2011-08-03 | 安徽好来西科技有限公司 | Vertical type equipment for detecting sealing performance of electric heater |
| CN201974274U (en) * | 2010-11-18 | 2011-09-14 | 安徽好来西科技有限公司 | Horizontal type equipment used for detecting tightness of electric heater |
| CN201945012U (en) * | 2011-03-09 | 2011-08-24 | 广东惠洁宝电器有限公司 | Electric water heater with novel structure |
| CN103454049A (en) * | 2013-09-04 | 2013-12-18 | 东莞兆舜有机硅新材料科技有限公司 | Method for detecting sealing performance of LED packing glue |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140709 |