CN201382844Y - High-speed pneumatic device for in-service heat-exchanger pipe eddy-current detection - Google Patents
High-speed pneumatic device for in-service heat-exchanger pipe eddy-current detection Download PDFInfo
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- CN201382844Y CN201382844Y CN200920139989U CN200920139989U CN201382844Y CN 201382844 Y CN201382844 Y CN 201382844Y CN 200920139989 U CN200920139989 U CN 200920139989U CN 200920139989 U CN200920139989 U CN 200920139989U CN 201382844 Y CN201382844 Y CN 201382844Y
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- pneumatic device
- heat exchanger
- speed pneumatic
- handle
- detection
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Abstract
The utility model relates to an improved structure of an eddy-current detection device for a heat-exchanger pipe, in particular to a high-speed pneumatic device for in-service heat-exchanger pipe eddy-current detection. The high-speed pneumatic device comprises detection probes connected through wires and a gun body with a handle, wherein an air flow channel of the handle is communicated with a gun bore of the gun body, the detection probes are installed in the gun bore in a movable fit manner, the connecting wires of the detection probes are movably matched with a through hole on the rear wall of the gun bore, and an air flow control valve is installed on the air flow channel of the handle. The high-speed pneumatic device with reasonable structure, portability and high detection efficiency can utilize the normal equipment downtime to rapidly and effectively perform detection to the heat exchange pipe of the entire heat exchanger, so as to find out all the leaking heat exchange pipes or that to be leaked, and ensure that the device runs safely and reliably and is also convenient to use and maintain.
Description
Technical field
The utility model belongs to the improvement of heat exchanger tube eddy current testing device structure, particularly at labour heat exchanger tube EDDY CURRENT high speed pneumatic device.
Background technology
The heat exchanger that the condenser of fuel-burning power plant and petroleum chemical industry are a large amount of; the corrosion leakage problem of heat exchanger tube affects the safe and reliable operation of system always in these equipment; so these equipment operation a period of times all will be shut down overhaul; one of its purpose is exactly leakage detection and leak detection; owing to can not only detect the pipe of corrosion leakage at labour heat exchanger tube eddy detection technology; and can detect the pipe that seriously corroded be about to leak, become at present and prevent from and reduce heat exchanger tube to leak most important detection means.
Can only adopt the interior crossing type eddy detection technology at the labour heat exchanger: be that detection probe is deep into detection method in the heat exchanger tube.Domestic general way is at present, manually detection probe is deep in the detected pipe, and this method efficient is very low, and a checkout equipment often is difficult in certain stop time whole heat exchanger heat exchanger tube carried out 100% detection.Penetrating manually, is that probe is manually pushed in the pipe, then probe is pulled out, because push-on process speed is wayward, so the general process of selecting probe to pull out detects.Along with the length of heat exchanger tube is more and more longer, for example the length of plant condenser pipe is generally more than 8m, add the incrustation scale that the long-time running inside pipe wall adheres to, probe to be pushed into this length more than 8m, even probe nylon tube that the back connect has certain intensity, neither one thing easily.Having carried out individually also is to utilize many instruments and a large amount of manpower to detect, and this has also restricted this technology to a certain extent in application and popularization in labour heat exchanger tube mass detection.
The utility model content
It is a kind of at labour heat exchanger tube EDDY CURRENT high speed pneumatic device that the purpose of this utility model is to provide; it is rational in infrastructure; light; the detection efficiency height; can utilize normal equipment downtime, fast and efficiently whole heat exchanger heat exchanger tube be detected, find out the heat exchanger tube that has all leaked or be about to leak; guarantee the device security reliability service, and this device operation and maintenance is convenient.
The purpose of this utility model is achieved in that a kind of at labour heat exchanger tube EDDY CURRENT high speed pneumatic device, comprise the detection probe that connects by lead, rifle body with handle, the gas channel of its handle is communicated with the bore of rifle body, detection probe is installed in bore movingly, the connection lead of detection probe and the through hole of bore rear wall are installed with control damper movingly on the gas channel of handle.
When using the utility model heat exchanging device heat exchanger tube to detect, the muzzle of the utility model rifle body is aimed at heat exchanger tube, open the control damper on the handle gas channel, make pressurized air enter bore through the gas channel of handle, pressurized air promotes detection probe at a high speed and injects in the heat exchanger tube, and heat exchanger is detected.The utility model is rational in infrastructure; light; the detection efficiency height; can utilize normal equipment downtime; fast and efficiently whole heat exchanger heat exchanger tube detected; find out the heat exchanger tube that has all leaked or be about to leak, guarantee the device security reliability service, and this device operation and maintenance is convenient.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a sectional structure synoptic diagram of the present utility model.
Embodiment
A kind of at labour heat exchanger tube EDDY CURRENT high speed pneumatic device, as shown in drawings, comprise the detection probe 2 that connects by lead 5, rifle body with handle 1, the gas channel of its handle 1 is communicated with the bore 3 of rifle body, detection probe 2 is installed in bore 3 movingly, and the connection lead 5 of detection probe 2 and the through hole of bore 3 rear walls are installed with control damper 6 movingly on the gas channel of handle 1.The diameter of detection probe 2 is than the little 0.3-0.6mm of diameter of bore 3.Compressed-air actuated pressure is the 2-5kg/ square centimeter.Soft nylon tube 4 in the outer wrap of lead 5.Stainless steel abrasionproof guide pin bushing 7 in the outer setting of detection probe 2, to increase the wearing quality of detection probe 2.
Claims (4)
1, a kind of at labour heat exchanger tube EDDY CURRENT high speed pneumatic device, comprise the detection probe (2) that connects by lead (5), it is characterized in that: rifle body with handle (1), the gas channel of its handle (1) is communicated with the bore (3) of rifle body, detection probe (2) is installed in bore (3) movingly, the through hole of the connection lead (5) of detection probe (2) and bore (3) rear wall is installed with control damper (6) movingly on the gas channel of handle (1).
2, according to claim 1 at labour heat exchanger tube EDDY CURRENT high speed pneumatic device, it is characterized in that: the diameter of detection probe (2) is than the little 0.3-0.6mm of diameter of bore (3).
3, according to claim 1 at labour heat exchanger tube EDDY CURRENT high speed pneumatic device, it is characterized in that: stainless steel abrasionproof guide pin bushing (7) in the outer setting of detection probe (2).
4, according to claim 1 at labour heat exchanger tube EDDY CURRENT high speed pneumatic device, it is characterized in that: soft nylon tube (4) in the outer wrap of lead (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920139989U CN201382844Y (en) | 2009-03-24 | 2009-03-24 | High-speed pneumatic device for in-service heat-exchanger pipe eddy-current detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920139989U CN201382844Y (en) | 2009-03-24 | 2009-03-24 | High-speed pneumatic device for in-service heat-exchanger pipe eddy-current detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382844Y true CN201382844Y (en) | 2010-01-13 |
Family
ID=41526316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920139989U Expired - Fee Related CN201382844Y (en) | 2009-03-24 | 2009-03-24 | High-speed pneumatic device for in-service heat-exchanger pipe eddy-current detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382844Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104335289A (en) * | 2012-06-19 | 2015-02-04 | 西屋电气有限责任公司 | Eddy current inspection probe |
| CN109580770A (en) * | 2018-12-07 | 2019-04-05 | 中国特种设备检测研究院 | A kind of semi-automatic EDDY CURRENT scanning system of tube sheet |
| CN114910552A (en) * | 2022-05-10 | 2022-08-16 | 华能海南发电股份有限公司东方电厂 | Multi-row pneumatic eddy current testing device for heat exchange tube and using method thereof |
-
2009
- 2009-03-24 CN CN200920139989U patent/CN201382844Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104335289A (en) * | 2012-06-19 | 2015-02-04 | 西屋电气有限责任公司 | Eddy current inspection probe |
| CN109580770A (en) * | 2018-12-07 | 2019-04-05 | 中国特种设备检测研究院 | A kind of semi-automatic EDDY CURRENT scanning system of tube sheet |
| CN114910552A (en) * | 2022-05-10 | 2022-08-16 | 华能海南发电股份有限公司东方电厂 | Multi-row pneumatic eddy current testing device for heat exchange tube and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20110324 |