CN103698091B - U heat exchange pressure test sealing device - Google Patents

U heat exchange pressure test sealing device Download PDF

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Publication number
CN103698091B
CN103698091B CN201310670132.0A CN201310670132A CN103698091B CN 103698091 B CN103698091 B CN 103698091B CN 201310670132 A CN201310670132 A CN 201310670132A CN 103698091 B CN103698091 B CN 103698091B
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China
Prior art keywords
sealing
movable block
screw mandrel
sealing device
nipple
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CN201310670132.0A
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CN103698091A (en
Inventor
万建春
刘生海
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NANJING SPECIAL METAL EQUIPMENT CO Ltd
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NANJING SPECIAL METAL EQUIPMENT CO Ltd
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Abstract

A kind of U heat exchange pressure test sealing device, it is characterized in that it is made up of the fixing device in pipe portion and orifice sealing device, the fixing device in described pipe portion includes framework (10), described framework (10) is provided with fixed block (13) and upper movable block (11), upper movable block (11) is connected with driving screw mandrel (1), and described fixed block (13) and upper movable block (11) are respectively provided with one piece of pressing plate (12) for compressing heat pipe (9) pipe portion;Described orifice sealing device is made up of sealing gasket (8), nipple (7), movable block (3) and sealing screw mandrel (5), the one side of described sealing gasket (8) offsets with the opening of heat pipe (9), the other end is positioned in nipple (7), movable block (3) is connected with sealing screw mandrel (5), sealing screw mandrel (5) spinning in sealing with in thread bush (4), sealing thread bush (4) is fixed in framework (10).Present configuration is simple, easy to operate.

Description

U heat exchange pressure test sealing device
Technical field
The present invention relates to a kind of hot pipe technique, the auxiliary device used in especially a kind of heat pipe experiments of sealing performance, specifically a kind of U heat exchange pressure test sealing device.
Background technology
At present, when U-shaped heat pipe is carried out leakage test, it is necessary to one end welding sealed, cut away the one end welded, not only complicated operation after off-test again, and causing a large amount of of material to waste, efficiency is low.To this, the solution that there is no at present.
Summary of the invention
It is an object of the invention to must be welded one end when carrying out leakage test for existing U-shaped heat pipe, cut away again after off-test and cause test inconvenience, efficiency low, the problem that waste of raw materials is serious, design one can be directly mounted at heat pipe end without welding and the convenient U heat exchange pressure test sealing device of mounting or dismounting.
The technical scheme is that
A kind of U heat exchange pressure test sealing device, it is characterized in that it is made up of the fixing device in pipe portion and orifice sealing device, the fixing device in described pipe portion includes framework 10, described framework 10 is provided with fixed block 13 and upper movable block 11, upper movable block 11 is connected with driving screw mandrel 1, drive screw mandrel 1 spinning in thread bush 2, described fixed block 13 and upper movable block 11 are respectively provided with one piece of pressing plate 12 for compressing heat pipe 9 pipe portion, the one side that two block pressur plates 12 are relative is respectively provided with a Hough groove;Described orifice sealing device is made up of sealing gasket 8, nipple 7, movable block 3 and sealing screw mandrel 5, the one side of described sealing gasket 8 offsets with the opening of heat pipe 9, the other end is positioned in nipple 7, nipple 7 spinning is in movable block 3, movable block 3 is connected with sealing screw mandrel 5, seal screw mandrel 5 spinning in sealing with in thread bush 4, sealing thread bush 4 is fixed in framework 10, the water injection hole being provided with through on sealing gasket 8, nipple 7 and movable block 3, water injection hole is connected with pressurization water inlet pipe 6 by joint.
Described thread bush 2 is monolithic construction or split-type structural with framework 10.
The described lower end driving screw mandrel 1 is flexibly connected with movable block 11.
The described lower end driving screw mandrel 1 is provided with annular groove 101, is fitted with limiting plate 102 in annular groove 101, and limiting plate 102 is fixed on movable block 11.
Described nipple 7 is taper thread.
Described sealing screw mandrel 5 is rotatably connected with movable block 3.
Beneficial effects of the present invention:
The invention solves a difficult problem for U-shaped heat pipe experiments of sealing performance, it is not necessary to opposite heat tube carries out welding and cutting completing total Test process, and easy to operate, simple in construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the pipe portion hold-down mechanism schematic diagram of the present invention.
Fig. 3 is that the present invention uses view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1-2.
A kind of U heat exchange pressure test sealing device, it is made up of the fixing device (such as Fig. 2) in pipe portion and orifice sealing device (such as Fig. 1), the fixing device in described pipe portion includes framework 10, described framework 10 is provided with fixed block 13 and upper movable block 11, upper movable block 11 is connected with driving screw mandrel 1, for the ease of driving screw mandrel 1 to drive upper movable block 11 to move up and down while rotating, on driving screw mandrel 1 is close, one end of movable block 11 arranges annular groove 101, annular groove 101 is fitted with limiting plate 102, limiting plate 102 is fixed by screws on movable block 11, such as Fig. 2.Driving screw mandrel 1 spinning in thread bush 2, thread bush 2 may be designed to and framework 10 monolithic construction, it is possible to is designed to split-type structural, and the thread bush 2 of split-type structural can pass through screw or welding method and framework 10 is fixedly linked.Described fixed block 13 and upper movable block 11 are respectively provided with one piece of pressing plate 12(for compressing heat pipe 9 pipe portion and can adopt PTFE material manufacture, to meet the requirement of hardness and frictional force), the one side that two block pressur plates 12 are relative is respectively provided with a Hough groove, such as Fig. 2;Described orifice sealing device can be adopted poly-ammonia to refer to sealing gasket by sealing gasket 8(), nipple 7, movable block 3 and seal screw mandrel 5 form, the one side of described sealing gasket 8 offsets with the opening of heat pipe 9, the other end is positioned in tapered thread joint 7, nipple 7 spinning is in movable block 3, movable block 3 is connected with sealing screw mandrel 5, seal screw mandrel 5 spinning in sealing with in thread bush 4, sealing thread bush 4 is fixed in framework 10, the water injection hole being provided with through on sealing gasket 8, nipple 7 and movable block 3, water injection hole is connected with pressurization water inlet pipe 6 by joint.The attachment structure sealing screw mandrel 5 and movable block 3 can adopt driving screw mandrel and the identical attachment structure of upper movable block.
During test, only need to prepare the sealing device of two present invention, it is connected with the two ends of U-shaped heat pipe respectively, can the pipe portion of U-shaped heat pipe be inserted in Hough groove during connection, rotate and drive screw mandrel 1 to be pressed in framework 10 by U-shaped heat pipe, sealing gasket 8 is pressed in the end of U-shaped heat pipe 9 again, rotary seal screw mandrel 5 makes sealing gasket 8 compress the mouth of pipe, after two ends have been respectively mounted the sealing device of the present invention, test water can be injected from the water inlet pipe 6 of one end, observe the gage pressure on water inlet pipe simultaneously, one end plug do not intake should be blocked during measurement, after test terminates, rotate and unclamp test screw mandrel and drive screw mandrel it become convenient substantially that pulled down by the sealing device of the present invention, without cutting.
Part that the present invention does not relate to is all same as the prior art maybe can adopt prior art to be realized.

Claims (4)

1. a U heat exchange pressure test sealing device, it is characterized in that it is made up of the fixing device in pipe portion and orifice sealing device, the fixing device in described pipe portion includes framework (10), described framework (10) is provided with fixed block (13) and upper movable block (11), upper movable block (11) is connected with driving screw mandrel (1), drive screw mandrel (1) spinning in the first thread bush (2), described fixed block (13) and upper movable block (11) are respectively provided with one piece of pressing plate (12) for compressing U heat exchange (9) pipe portion, the one side that two block pressur plates (12) are relative is respectively provided with a Hough groove;Described orifice sealing device is by sealing gasket (8), nipple (7), movable block (3) and sealing screw mandrel (5) composition, the one side of described sealing gasket (8) offsets with the opening of U heat exchange (9), the other end is positioned in nipple (7), nipple (7) spinning is in movable block (3), movable block (3) is connected with sealing screw mandrel (5), seal screw mandrel (5) spinning sealing with in the second thread bush (4), sealing is fixed in framework (10) with the second thread bush (4), in sealing gasket (8), the water injection hole being provided with through on nipple (7) and movable block (3), water injection hole is connected with pressurization water inlet pipe (6) by joint;The lower end of described driving screw mandrel (1) is provided with annular groove (101), is fitted with limiting plate (102) in annular groove (101), and limiting plate (102) is fixed on movable block (11);The lower end of described driving screw mandrel (1) is flexibly connected with upper movable block (11).
2. sealing device according to claim 1, is characterized in that described the first thread bush (2) and framework (10) are monolithic construction or split-type structural.
3. sealing device according to claim 1, is characterized in that described nipple (7) is taper thread.
4. sealing device according to claim 1, is characterized in that described sealing screw mandrel (5) and movable block (3) are rotatably connected.
CN201310670132.0A 2013-12-11 2013-12-11 U heat exchange pressure test sealing device Active CN103698091B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310670132.0A CN103698091B (en) 2013-12-11 2013-12-11 U heat exchange pressure test sealing device

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Application Number Priority Date Filing Date Title
CN201310670132.0A CN103698091B (en) 2013-12-11 2013-12-11 U heat exchange pressure test sealing device

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CN103698091A CN103698091A (en) 2014-04-02
CN103698091B true CN103698091B (en) 2016-07-13

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105352808B (en) * 2015-11-20 2018-06-26 王旭明 A kind of U-shaped air-conditioning heating tube soldering opening detection device
CN109596273B (en) * 2018-10-30 2021-02-09 苏州迈拓金属检测服务有限公司 Method for accurately positioning leakage point of heat exchanger

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793083A1 (en) * 1996-02-28 1997-09-03 Framatome Device for leak detection in tube walls of a heat exchanger
CN102141457A (en) * 2010-12-30 2011-08-03 陕西化建工程有限责任公司 U-shaped heat exchange tube pressure test positioner
CN202177489U (en) * 2011-08-15 2012-03-28 贵州赤天化股份有限公司 Heat exchanger single tube pressure testing tool
CN203249741U (en) * 2013-03-20 2013-10-23 甘肃蓝科石化高新装备股份有限公司 Single-pipe pressure test tool for bearing metal pipe
CN103386661A (en) * 2013-07-29 2013-11-13 张家港化工机械股份有限公司 Quick-opening clamp for pressure test of U-shaped heat exchange tube
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
CN203672562U (en) * 2013-12-11 2014-06-25 南京斯迈柯特种金属装备股份有限公司 Sealing device used for pressure test of U-shaped heat exchange tube

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793083A1 (en) * 1996-02-28 1997-09-03 Framatome Device for leak detection in tube walls of a heat exchanger
CN102141457A (en) * 2010-12-30 2011-08-03 陕西化建工程有限责任公司 U-shaped heat exchange tube pressure test positioner
CN202177489U (en) * 2011-08-15 2012-03-28 贵州赤天化股份有限公司 Heat exchanger single tube pressure testing tool
CN203249741U (en) * 2013-03-20 2013-10-23 甘肃蓝科石化高新装备股份有限公司 Single-pipe pressure test tool for bearing metal pipe
CN103386661A (en) * 2013-07-29 2013-11-13 张家港化工机械股份有限公司 Quick-opening clamp for pressure test of U-shaped heat exchange tube
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
CN203672562U (en) * 2013-12-11 2014-06-25 南京斯迈柯特种金属装备股份有限公司 Sealing device used for pressure test of U-shaped heat exchange tube

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