CN102141457A - U-shaped heat exchange tube pressure test positioner - Google Patents
U-shaped heat exchange tube pressure test positioner Download PDFInfo
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- CN102141457A CN102141457A CN2010106127934A CN201010612793A CN102141457A CN 102141457 A CN102141457 A CN 102141457A CN 2010106127934 A CN2010106127934 A CN 2010106127934A CN 201010612793 A CN201010612793 A CN 201010612793A CN 102141457 A CN102141457 A CN 102141457A
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- pressure test
- central shaft
- heat exchange
- positioner
- test positioner
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Abstract
The invention relates to a U-shaped heat exchange tube pressure test positioner, which is simple in structure and low in cost and effectively reduces pressure test time. The U-shaped heat exchange tube pressure test positioned comprises two sets of pressure test positioner body, wherein each pressure test positioner comprises a central shaft; the central shaft of one pressure test positioner has a through hole; pull rods are arranged on the central shafts; pads are arranged between the central shafts and the pull rods; the pull rods are connected with compression nuts; the nuts are connected with shaft sleeves; the shaft sleeves are connected with sealing blocks; the sealing blocks are provided with locking heads; and the locking heads are provided with locking nuts.
Description
One, technical field:
The present invention relates to a kind of structure for pressure test, especially relate to a kind of U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES.
Two, background technology:
In the background technology, U type heat exchange of heat pipe compact conformation, convenient maintenance are used very extensive in petroleum chemical industry.But because the reasons in structure of U type heat exchange of heat pipe self,, do like this and certainly will reduce heat interchanging area, reduced heat transfer efficiency if, can only take the way of plug even if carrying out the hydraulic testing after assembling finds that individual tubes exists to leak and also can't change.Therefore, the heat exchanger tube that must make stewing before assembling carries out hydraulic testing inspection, just can effectively prevent the generation of this type of thing.Exist following difficulty but for a long time single U type pipe is carried out the hydraulic testing, never have good solution, the one, the bending radius of heat exchanger tube differs, and specification is a lot, pressure testing according to the conventional method, efficient is very low.The 2nd, the arrangement mode difference of heat exchanger tube, the mold utilization factor is not high, that is to say that it is unpractical making fixing pressure testing mold.
Three, summary of the invention:
The present invention provides a kind of U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES in order to solve the weak point in the above-mentioned background technology, and it is simple in structure, effectively shortened the pressure testing time, and cost is lower.
For achieving the above object, the technical solution used in the present invention is:
A kind of U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES, it is characterized in that: comprise pressure testing mold body, pressure testing mold body is two covers, pressure testing mold body comprises central shaft, wherein have through hole on the central shaft of a cover pressure testing mold body, central shaft is provided with pull bar, and pull bar is connected with compressing member, compressing member is connected with axle sleeve, and axle sleeve is connected with sealing block.
Above-mentioned compressing member is a gland nut.
Be provided with pad between above-mentioned central shaft and the pull bar.
Above-mentioned sealing block is provided with locking head, has set nut on the locking head.
Compared with prior art, the advantage and the effect that have of the present invention is as follows:
The present invention shows through experiment: test pressure can reach 1.1MPa, and a sealing block can be checked about 120 of U type pipes continuously, can satisfy the manufacturing requirement of general U type heat exchange of heat pipe fully.The more important thing is that it has solved the difficult problem of U type heat exchange of heat pipe pressure testing, not differed by the bending radius of heat exchanger tube, the puzzlement that specification is many has improved work efficiency, has shortened the pressure testing time greatly, has reduced cost, and is simple and practical.
Four, description of drawings:
Fig. 1 is a structural representation of the present invention.
Among the figure, 1-central shaft, 2-pad, 3-pull bar, 4-gland nut, 5-axle sleeve, 6-sealing block, 7-locking head, 8-set nut, 9-heat exchanger tube, 10-through hole.
Five, embodiment:
Referring to Fig. 1, the present invention includes pressure testing mold body, pressure testing mold body is two covers, two covers are one group, pressure testing mold body comprises central shaft 1, water inlet is used when wherein having a through hole 10 about φ 4mm as pressure testing on the central shaft 1 of a cover pressure testing mold body, central shaft 1 is provided with pull bar 3, be provided with pad 2 between central shaft 1 and the pull bar 3, pull bar 3 is connected with gland nut 4, and gland nut 4 is connected with axle sleeve 5, axle sleeve 5 is connected with sealing block 6, sealing block 6 is provided with locking head 7, has set nut 8 on the locking head 7, and the effect of set nut 8 and locking head 7 is to prevent that sealing block 6 and axle sleeve 5 from coming off.
During actual the use, the U type pipe box that stewing makes is gone into the pressure testing mold, central shaft 1 has the mold of water filling through hole 10 to connect test pump, the pull bar 3(that rotates simultaneously on the two cover molds is welded on the gland nut 4), gland nut 4 is rotated, promote axle sleeve 5 extruding in pipe, sealing block 6 is expanded, reach sealing effectiveness.Simultaneously, water filling through hole 10 pressurizations by central shaft 1 make the pipe internal pressure reach testing requirements, check the leakage situation of heat exchanger tube.Central shaft 1, gland nut 4, axle sleeve 5, locking head 7, set nut 8 adopt stainless steel material to shape, and purpose is that the mold surface is not prone to the corrosion situation, can reuse.Most importantly selecting for use of sealing block material must be processed with polyurethane, and reason has 3 points.The one, polyurethane has good mobility and toughness, can produce bigger unit pressure under the bigger situation of compression stress, and the permanent strain that causes under the very big situation of compressive strain is very little, can guarantee the validity of frock; The 2nd, it has higher wearing quality, and is anti-aging also better with ability anti tear, can make frock durable in use; The 3rd, machinability is good, can carry out conventional machining, and is easy to make.The physical dimension of parts is wanted rationally, particularly the fit dimension of central shaft and other parts and the outside dimension of sealing block.The too little sealing effectiveness of sealing block external diameter is bad, and is harder during too big loading and unloading heat exchanger tube, generally gets than the little 0.1 ~ 0.2mm of heat exchanger tube internal diameter to get final product.Central shaft unsuitable oversize (about 100mm), the centre partly adopts screw thread to link to each other with gland nut, set nut with the microcephaly.The daily U type heat exchanger tube specification that often runs into is φ 25 * 2.5 and φ 19 * 2 two kind, and U type pipe structure for pressure test therefore commonly used also just only needs processing two covers just can meet the demands.
Claims (4)
1. U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES, it is characterized in that: comprise pressure testing mold body, pressure testing mold body is two covers, pressure testing mold body comprises central shaft (1), wherein have through hole (10) on the central shaft (1) of a cover pressure testing mold body, central shaft (1) is provided with pull bar (3), and pull bar (3) is connected with compressing member, compressing member is connected with axle sleeve (5), and axle sleeve (5) is connected with sealing block (6).
2. U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES according to claim 1 is characterized in that: compressing member is gland nut (4).
3. U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES according to claim 1 and 2 is characterized in that: be provided with pad (2) between central shaft (1) and the pull bar (3).
4. U type PRESSURE TEST POSITIONER FOR HEAT EXCHANGING PIPES according to claim 3 is characterized in that: sealing block (6) is provided with locking head (7), has set nut (8) on the locking head (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106127934A CN102141457A (en) | 2010-12-30 | 2010-12-30 | U-shaped heat exchange tube pressure test positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106127934A CN102141457A (en) | 2010-12-30 | 2010-12-30 | U-shaped heat exchange tube pressure test positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102141457A true CN102141457A (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106127934A Pending CN102141457A (en) | 2010-12-30 | 2010-12-30 | U-shaped heat exchange tube pressure test positioner |
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| CN (1) | CN102141457A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398829A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Clamping device for hydraulic test of U-shaped heat exchange tube |
| CN103698091A (en) * | 2013-12-11 | 2014-04-02 | 南京斯迈柯特种金属装备股份有限公司 | Sealing device for pressure-tight test of U-shaped heat exchange pipe |
| CN105527171A (en) * | 2016-01-13 | 2016-04-27 | 兰州兰石重型装备股份有限公司 | Tooling for U-shaped pipe hydrostatic test and using method of tooling |
| CN105604666A (en) * | 2016-03-11 | 2016-05-25 | 南京依柯卡特汽车催化器有限公司 | Novel airtight leakage detection device |
| CN108374893A (en) * | 2018-04-25 | 2018-08-07 | 山西丰喜化工设备有限公司 | The single structure for pressure test of heat exchanger tube |
| CN109186886A (en) * | 2018-07-24 | 2019-01-11 | 锦州秀亭制管有限公司 | The airtight detection method and equipment of automobile cooler for recycled exhaust gas pipe |
| CN111398046A (en) * | 2020-04-30 | 2020-07-10 | 宝鸡欧亚化工设备制造厂 | U-shaped tube heat exchanger heat exchange tube detection fixing device and fixing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254181Y (en) * | 1996-05-06 | 1997-05-14 | 张亚忠 | Pressure test tool for pipe fitting |
| CN2456152Y (en) * | 2000-12-27 | 2001-10-24 | 郑州大学 | Apparatus for testing large diameter pressured pipeline |
| CN101782487A (en) * | 2010-03-05 | 2010-07-21 | 江苏诚德钢管股份有限公司 | Sealing device for water pressure test of small-diameter random-length steel tube |
-
2010
- 2010-12-30 CN CN2010106127934A patent/CN102141457A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254181Y (en) * | 1996-05-06 | 1997-05-14 | 张亚忠 | Pressure test tool for pipe fitting |
| CN2456152Y (en) * | 2000-12-27 | 2001-10-24 | 郑州大学 | Apparatus for testing large diameter pressured pipeline |
| CN101782487A (en) * | 2010-03-05 | 2010-07-21 | 江苏诚德钢管股份有限公司 | Sealing device for water pressure test of small-diameter random-length steel tube |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398829A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Clamping device for hydraulic test of U-shaped heat exchange tube |
| CN103698091A (en) * | 2013-12-11 | 2014-04-02 | 南京斯迈柯特种金属装备股份有限公司 | Sealing device for pressure-tight test of U-shaped heat exchange pipe |
| CN103698091B (en) * | 2013-12-11 | 2016-07-13 | 南京斯迈柯特种金属装备股份有限公司 | U heat exchange pressure test sealing device |
| CN105527171A (en) * | 2016-01-13 | 2016-04-27 | 兰州兰石重型装备股份有限公司 | Tooling for U-shaped pipe hydrostatic test and using method of tooling |
| CN105604666A (en) * | 2016-03-11 | 2016-05-25 | 南京依柯卡特汽车催化器有限公司 | Novel airtight leakage detection device |
| CN105604666B (en) * | 2016-03-11 | 2017-12-05 | 南京依柯卡特排放技术股份有限公司 | A kind of airtight leakage detection apparatus |
| CN108374893A (en) * | 2018-04-25 | 2018-08-07 | 山西丰喜化工设备有限公司 | The single structure for pressure test of heat exchanger tube |
| CN109186886A (en) * | 2018-07-24 | 2019-01-11 | 锦州秀亭制管有限公司 | The airtight detection method and equipment of automobile cooler for recycled exhaust gas pipe |
| CN111398046A (en) * | 2020-04-30 | 2020-07-10 | 宝鸡欧亚化工设备制造厂 | U-shaped tube heat exchanger heat exchange tube detection fixing device and fixing method |
| CN111398046B (en) * | 2020-04-30 | 2022-09-02 | 宝鸡欧亚化工设备制造厂 | Detection fixing device and fixing method for heat exchange tube of U-shaped tube heat exchanger |
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Application publication date: 20110803 |