CN110057680A - Heat exchanger tube structure for pressure test and its application method - Google Patents
Heat exchanger tube structure for pressure test and its application method Download PDFInfo
- Publication number
- CN110057680A CN110057680A CN201810052280.9A CN201810052280A CN110057680A CN 110057680 A CN110057680 A CN 110057680A CN 201810052280 A CN201810052280 A CN 201810052280A CN 110057680 A CN110057680 A CN 110057680A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- heat exchanger
- exchanger tube
- pressure
- screw thread
- 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.)
- Withdrawn
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Heat exchanger tube structure for pressure test and its application method belong to mechanical equipment technological equipment field, solve prior art inefficiency defect.Its structure includes mandrel 1, sealing ring 2, tapered sleeve 3, saw-tooth ring 4, runner 5, collar nut 6；1 center of mandrel is machined with through-hole, 1 external process screw thread of mandrel；The collar nut 6 is provided with centre bore, centre bore machining internal thread, and the screw thread and 1 external screw thread of mandrel cooperate, and 6 other end group of nut welds high-pressure water pipe connector；5 center of runner processes through-hole；After the 4 overall processing profile indent of saw-tooth ring, 3 valves are cut by 120 °.Application method: heat exchanger tube 7 is assembled in left side and fastens collar nut 6, mandrel 1 is tensed, sealing ring 2 is made to work；The toolings such as pressure gauge base 8, surge tank, high-pressure water pipe band are assembled on right side；It exchanges heat pipe and carries out pressure testing.The present invention can be used for the pressure testing of the various heat exchanger tubes such as U-shaped, straight tube, abnormity, high-efficient, at low cost.
Description
Technical field
The invention belongs to mechanical equipment technological equipment fields, are related to a kind of structure for pressure test.
Background technique
All kinds of heat exchangers in pressure vessel industries, wherein heat exchanger tube must carry out as required as main pressurized element
By the root water pressure test.But since heat exchanger tube is various informative, such as U-tube, straight tube, special pipe, and changed in every heat exchanger
Heat pipe quantity is more, for very big by root work pressure test amount.Therefore be highly desirable to make one kind can be general and can be quick
The heat exchanger tube structure for pressure test of installation, disassembly.
Summary of the invention
The purpose of the present invention is improving the working efficiency of heat exchanger tube pressure testing, facilitate operation.
Heat exchanger tube structure for pressure test, structure include mandrel 1, sealing ring 2, tapered sleeve 3, saw-tooth ring 4, runner 5, collar nut 6；
1 center of mandrel is machined with through-hole, 1 external process screw thread of mandrel；The collar nut 6 is provided with centre bore, centre bore
Machining internal thread, the screw thread and 1 external screw thread of mandrel cooperate, and play connection fastening effect, and 6 other end group of nut weldering high-pressure water pipe connects
Head；5 center of runner processes through-hole, plays the role of positioning；After the 4 overall processing profile indent of saw-tooth ring, press
120 ° are cut into 3 valves.
2 material of sealing ring is polyurethane rubber, and shore hardness is 90 degree.
The application method of heat exchanger tube structure for pressure test is as follows:
1. successively assembling mandrel 1, sealing ring 2, tapered sleeve 3, saw-tooth ring 4, runner 5, collar nut 6 in order；
2. assembling heat exchanger tube 7 in left side and fastening collar nut 6, mandrel 1 is tensed, heat exchange tube wall is squeezed after deforming sealing ring 2,
To play sealing function；
3. assembling the toolings such as pressure gauge base 8, surge tank, high-pressure water pipe band on right side；
4. checking fitted position；
5. carrying out pressure testing by water pressure test technological procedure and drawing requirement exchange heat pipe.
The present invention can be used for the pressure testing of the various heat exchanger tubes such as U-shaped, straight tube, abnormity, and heat exchanger tube can be improved and try by root
The working efficiency of pressure, structure are simple and convenient to operate, and quickly can be assembled and be removed, low in cost.
Detailed description of the invention
Fig. 1 is heat exchanger tube structure for pressure test assembling schematic diagram,
Fig. 2 is sawtooth shaped part schematic diagram,
Fig. 3 is saw-tooth ring B-B cross-sectional view,
Fig. 4 is heat exchanger tube structure for pressure test and heat exchanger tube and pressure gauge base assembling figure,
In figure: 1 mandrel, 2 sealing rings, 3 tapered sleeves, 4 saw-tooth rings, 5 runners, 6 collar nuts, 7 heat exchanger tubes, 8 pressure gauge bases.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
As shown in Figure 1, heat exchanger tube structure for pressure test, structure include mandrel 1, sealing ring 2, tapered sleeve 3, saw-tooth ring 4, runner 5,
Collar nut 6；
1 center of mandrel is machined with through-hole, 1 external process screw thread of mandrel.Screw thread should meet GB/T196 " regular screw threads base
This size " circle root screw thread regulation, tolerance is by 6H in GB/T197 " Metric Thread's Tolerance ", 1 external screw thread of mandrel and collar nut 6
Screw-internal thread fit plays connection fastening effect；
The collar nut 6 is provided with centre bore, centre bore machining internal thread, and one end group and welds high-pressure water pipe connector；Screw thread
The regulation of GB/T196 " regular screw threads basic size " circle root screw thread should be met, tolerance is by GB/T197 " Metric Thread's Tolerance "
6g；6 internal screw thread of collar nut and 1 external screw thread of mandrel cooperate, and play connection fastening effect；
5 center of runner processes through-hole, plays the role of positioning；
As shown in Fig. 2, being cut into 3 valves by 120 ° after the 4 overall processing profile indent of saw-tooth ring；The effect of saw-tooth ring: when
After nut 6 tenses mandrel 1, tapered sleeve opens saw-tooth ring, and expansion compresses heat transfer tube wall, plays the role of fixed structure for pressure test.
2 material of sealing ring is polyurethane rubber, and shore hardness is 90 degree.
As shown in figure 3, the application method of heat exchanger tube structure for pressure test is as follows:
1. successively assembling mandrel 1, sealing ring 2, tapered sleeve 3, saw-tooth ring 4, runner 5, collar nut 6 in order；
2. assembling heat exchanger tube 7 in left side and fastening collar nut 6；
3. assembling the toolings such as pressure gauge base 8, surge tank, high-pressure water pipe band on right side；
4. checking fitted position；
5. carrying out pressure testing by water pressure test technological procedure and drawing requirement exchange heat pipe.
The pressure testing that present invention can be widely used to the various heat exchanger tubes such as U-shaped, straight tube, abnormity, is greatly improved work
Efficiency.
Claims (3)
1. heat exchanger tube structure for pressure test, it is characterized in that: its structure include mandrel (1), sealing ring (2), tapered sleeve (3), saw-tooth ring (4), runner
(5), collar nut is (6)；(1) center is machined with through-hole to the mandrel, mandrel (1) external process screw thread；The collar nut is (6)
It is provided with centre bore, centre bore machining internal thread, (1) external screw thread cooperates for the screw thread and mandrel, plays connection fastening effect, nut is (6)
Other end group welds high-pressure water pipe connector；(5) center processes through-hole to the runner, plays the role of positioning；The saw-tooth ring is (4)
After overall processing profile indent, 3 valves are cut by 120 °.
2. heat exchanger tube structure for pressure test described in claim 1, it is characterized in that: (2) material is polyurethane rubber to the sealing ring,
Shore hardness is 90 degree.
3. the application method of heat exchanger tube structure for pressure test described in claim 1, it is characterized in that:
1. in order successively assembling mandrel (1), sealing ring (2), tapered sleeve (3), saw-tooth ring (4), runner (5), collar nut (6)；
2. assembling heat exchanger tube (7) in left side and fastening collar nut (6), mandrel is tensed (1), heat exchange is squeezed after deforming sealing ring (2)
Tube wall, to play sealing function；
3. right side assembling pressure gauge base (8), the toolings such as surge tank, high-pressure water pipe band；
4. checking fitted position；
5. carrying out pressure testing by water pressure test technological procedure and drawing requirement exchange heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052280.9A CN110057680A (en) | 2018-01-19 | 2018-01-19 | Heat exchanger tube structure for pressure test and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052280.9A CN110057680A (en) | 2018-01-19 | 2018-01-19 | Heat exchanger tube structure for pressure test and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110057680A true CN110057680A (en) | 2019-07-26 |
Family
ID=67315783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810052280.9A Withdrawn CN110057680A (en) | 2018-01-19 | 2018-01-19 | Heat exchanger tube structure for pressure test and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110057680A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272361A (en) * | 2019-12-13 | 2020-06-12 | 重庆大学 | Single tube pressure test and leakage detection tool for tube type heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202267575U (en) * | 2011-09-26 | 2012-06-06 | 张家港化工机械股份有限公司 | Long hole welding pressure testing tool |
| CN205562117U (en) * | 2016-04-26 | 2016-09-07 | 沈阳东方钛业股份有限公司 | U -shaped heat exchange tube hydrostatic test is with stopper that rises |
| CN207730579U (en) * | 2018-01-19 | 2018-08-14 | 兰州兰石重型装备股份有限公司 | Heat exchanger tube structure for pressure test |
-
2018
- 2018-01-19 CN CN201810052280.9A patent/CN110057680A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202267575U (en) * | 2011-09-26 | 2012-06-06 | 张家港化工机械股份有限公司 | Long hole welding pressure testing tool |
| CN205562117U (en) * | 2016-04-26 | 2016-09-07 | 沈阳东方钛业股份有限公司 | U -shaped heat exchange tube hydrostatic test is with stopper that rises |
| CN207730579U (en) * | 2018-01-19 | 2018-08-14 | 兰州兰石重型装备股份有限公司 | Heat exchanger tube structure for pressure test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272361A (en) * | 2019-12-13 | 2020-06-12 | 重庆大学 | Single tube pressure test and leakage detection tool for tube type heat exchanger |
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190726 |