CN105486460B - A kind of pressure testing system for movable tube sheets heat exchanger - Google Patents
A kind of pressure testing system for movable tube sheets heat exchanger Download PDFInfo
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- CN105486460B CN105486460B CN201510953060.XA CN201510953060A CN105486460B CN 105486460 B CN105486460 B CN 105486460B CN 201510953060 A CN201510953060 A CN 201510953060A CN 105486460 B CN105486460 B CN 105486460B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- 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
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- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of pressure testing systems for movable tube sheets heat exchanger, including：Floating tubesheet side fixed structure, floating tubesheet side enclosed construction, fixed tube sheet sealing structure and seal structure for casing composition, floating tubesheet side fixed structure, floating tubesheet side seal close structure setting in floating tubesheet side for fixing and sealing floating tubesheet；The fixed tube sheet sealing structure setting is with fixed tube sheet side for sealing fixed tube sheet, the shell one end that the seal structure for casing is set to floating tubesheet side is used for seal casinghousing, and the pressure testing system for movable tube sheets heat exchanger is constituted on heat exchangers by above structure setting.The floating head heat exchanger tube bank pressure testing system of the present invention can intuitively check that heat exchanger tube, exchanger tubes and tubesheets weld strength and the leak test of tube bank are examined by the pressure testing of heat exchanging device shell.The pressure testing system simple operation, dependable performance, the scope of application are big；Responsible measures guarantee is provided for equipment making quality inspection.
Description
Technical field
The invention belongs to machinery fields, are related to a kind of system for chemical industry equipment, more particularly to a kind of for floating head type
The pressure testing system of heat exchanger.
Background technology
Movable tube sheets heat exchanger is the common equipment in chemical plant, and movable tube sheets heat exchanger is mainly by shell, bobbin carriage, tube bank, the outside
The components such as lid composition.One end tube sheet of movable tube sheets heat exchanger is fixed between shell and bobbin carriage, and other end tube sheet can be in shell
It inside moves freely, that is, shell does not have thermal (temperature difference) stress between tube bundle heat free expanding, tube bank and shell.Floating head heat exchanger is set
Detachable structure is counted into, tube bank is made freely can to extract out and be packed into.Common to raise the nose above water to breathe there are two types of form, the first is to lean on clamp-shaped
Semi-ring and several housing screws make floating head and floating tube sheet sealing combine, and ensure not leaking through with each other between pipe in pipe.Separately
One is making floating head flange directly be fastened with bolt with hook circle flange, makes floating head flange and floating tube sheet palette, manage
It is interior not leak through with each other between pipe.
Movable tube sheets heat exchanger has No leakage that need to test tube bank in manufacture, maintenance process, checks heat exchanger tube and changes
Whether there is or not leak sources with panel weld for heat pipe, and can determine that leak source specific location to repair.This just needs to carry out liquid to tube bank shell-side
Pressure experiment leakage detection.Due to its design feature, shell is Open architecture with tube bank floating head side, need to be closed to this position,
Hydraulic test is carried out to realize that tube bank and shell form closing chamber.
Therefore, under heat exchanger tube pressure testing state, fixed tube sheet needs unobstructed i.e. in pressure testing with floating tubesheet end face outside
Tube bank can intuitively find leakage point (position) if any leak source under state.
Invention content
The purpose of the present invention is to provide a kind of pressure testing system, by the outer floating tubesheet for stretching out shell and part tube bank with
Housings close is integral；And fixed tube sheet and shell flange are closed.Make pipeline of floating-head heat exchanger beam under pressure testing state, Gu
Fixed tube plate and floating tubesheet end face outside are unobstructed, i.e., leakage point can intuitively be found if any leak source by being restrained under pressure testing state.
To achieve the above object, the present invention provides a kind of movable tube sheets heat exchanger pressure testing system, described to exchange heat for floating head type
The pressure testing system of device includes：Floating tubesheet side fixed structure, floating tubesheet side enclosed construction, fixed tube sheet sealing structure and shell
Body sealing structure forms.Floating tubesheet side fixed structure, floating tubesheet side seal close structure setting and are used in floating tubesheet side
Fixed and sealing floating tubesheet；The fixed tube sheet sealing structure setting is used to seal fixed tube sheet with fixed tube sheet side, described
The shell one end that seal structure for casing is set to floating tubesheet side is used for seal casinghousing, and structure on heat exchangers is arranged by above structure
At the pressure testing system for movable tube sheets heat exchanger.
Floating tubesheet side fixed structure includes：It is solid with outer skull side flange that one pressure testing part is set in floating tubesheet one end
Fixed connection realizes that floating tubesheet side seal closes；Fixed tube sheet end is arranged a gland flange and connect fastening realization sealing with shell flange；
The floating tubesheet side seal structure includes：It is arranged one at pressure testing part position corresponding with floating tubesheet outer circle respectively
U-type groove, and the wire hole that one communicates with outside is set in U-type groove and connect hydraulic hand-pump, groove profile rubber is studded in U-type groove
Ring realizes sealing by external hand hydraulic pump to groove profile rubber ring pressure swelling floating tubesheet outer circle；
The fixed tube sheet sealing structure includes：Fixed tube sheet housing seal is arranged, and gland is by fixed tube sheet squeezed tight
On shell flange, fixed tube sheet side seal is realized；
The seal structure for casing includes：Pressure testing part is close to shell, and consolidating by pressure testing part with the end face of housing parallel
Fixed end and outer skull side flange fit sealing.
Further, the pressure testing part is not reciprocity concave structure part, and horizontal end face and housing parallel are simultaneously close to shell,
Fit sealing is docked by the first bolt, the realization of the first gasket with outer skull side flange in one vertical connection end.
Preferably, the inside and outside diameter at the vertical connection end of the pressure testing part is identical as outer skull side flange, bolt hole count
Amount, size, distribution are identical as the outer bolt hole of skull side flange.
Further, in the fixed tube sheet sealing structure, gland on shell flange, leads to fixed tube sheet squeezed tight
Cross the second bolt, fixed tube sheet side seal is realized in the fastening of the second gasket.
Further, the gland be annular, internal diameter, outer diameter are identical as shell flange, number of bolt hole, size,
Distribution is identical as shell flange bolt hole.
The closing of movable tube sheets heat exchanger floating tubesheet side can be realized by the pressure testing system, and can be incited somebody to action during pressure testing
Both ends tube sheet outer end face, which is exposed, realizes the purpose of macroscopic examination.And groove profile rubber ring is bumped into U-type groove, pass through external hand
The sealing structure that hydraulic pump seals the pressure swelling floating tubesheet outer circle realization of groove profile rubber ring, easy to operate, good airproof performance,
Sealing effect can be adjusted the pressure size that groove profile rubber ring applies by handlance, reusable after pressure release.
The floating head heat exchanger tube bank pressure testing system of the present invention can meet pipeline of floating-head heat exchanger beam pressure testing, install pressure testing system additional
It can intuitively check that heat exchanger tube, exchanger tubes and tubesheets weld strength and the leak test of tube bank are examined by the pressure testing of heat exchanging device shell afterwards
It tests.The pressure testing system simple operation, dependable performance, the scope of application are big；Responsible measures guarantee is provided for equipment making quality inspection.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pressure testing system for movable tube sheets heat exchanger of the present invention；
Fig. 2 a are the side view of the pressure testing part；
Fig. 2 b are the C-C of Fig. 2 a to sectional view；
Fig. 3 is the partial enlargement structural representation of the part A in Fig. 1；
Fig. 4 a are the schematic diagram of the groove profile sealing ring used in the present embodiment；
Fig. 4 b are the D-D of Fig. 4 a to sectional view.
Wherein：
1. pressure testing part, 2. groove profile sealing rings, the 3, first gasket, 4, outer skull side flange, 5, water inlet, 6, shell, 7, shell
Body flange, 8, gland, the 9, second bolt, the 10, second gasket, 11, fixed tube sheet, 12, discharge outlet, 13, heat exchanger tube, 14, first
Bolt, 15, floating tubesheet, 16, hydraulic hand-pump.
Specific implementation mode
The following contents will elaborate to specific embodiments of the present invention in conjunction with Figure of description：
Fig. 1 is the structural schematic diagram of the pressure testing system for movable tube sheets heat exchanger, as shown in Figure 1, the system comprises：It is floating
Dynamic tube sheet side fixed structure, floating tubesheet side enclosed construction, fixed tube sheet sealing structure and seal structure for casing composition；It is described
Floating tubesheet side fixed structure, floating tubesheet side seal close structure setting in floating tubesheet side for fixing and sealing floating tubesheet；
With fixed tube sheet side for sealing fixed tube sheet, the seal structure for casing is set to floating for the fixed tube sheet sealing structure setting
The shell one end of dynamic tube sheet side is used for seal casinghousing, is made of on heat exchangers for movable tube sheets heat exchanger above structure setting
Pressure testing system.Wherein, a pressure testing part 1 is respectively set with outer skull side flange 4 by first in the both sides of 15 one end of floating tubesheet
The connection of bolt 14 realizes that floating tubesheet side seal closes；A gland flange 8 is respectively set by the second bolt 9 in fixed tube sheet both ends, and
Two gaskets 10 connect fastening with shell flange 7 and realize sealing respectively, form fixed tube sheet side fixed structure.It so can be in pressure testing
Both ends tube sheet outer end face is exposed in journey and realizes the purpose of macroscopic examination.Fixed tube sheet 11 is sealed with shell flange 7, is passed through
Second bolt 9, gland 8, the second gasket 10 are by 11 squeezed tight of fixed tube sheet on shell flange 7；Realize fixed tube sheet sealing.
Wherein, gland 8 is annular, and internal diameter, outer diameter are identical as shell flange 7, number of bolt hole, size, distribution and shell flange 7
Bolt hole is identical.The pressure testing system is that solid forging is machining, is sealed into that groove profile rubber ring is outer plus hydraulic system makes
It is sealed with floating tubesheet outer circle.
Fig. 2 a are the side view of the pressure testing part；Fig. 2 b are the C-C of Fig. 2 a to sectional view；Such as Fig. 2 a, shown in 2b：Pressure testing part
1 is not reciprocity concave structure part, and horizontal end face and housing parallel are simultaneously close to shell, one vertical connection end and outer skull side method
Orchid 4 realizes docking fit sealing by the first bolt 14, the first gasket 3, realizes and restrains overhanging floating tubesheet end and housing seal.
Fig. 3 is the partial enlargement structural representation of the part A in Fig. 1；Fig. 4 a are the signal of the groove profile sealing ring used in the present embodiment
Figure；Fig. 4 b are the D-D of Fig. 4 a to sectional view.
In conjunction with shown in Fig. 1, Fig. 2 b and Fig. 4 a, 4b, set respectively at the position corresponding with 15 outer circle of floating tubesheet of pressure testing part 1
A U-type groove is set, and the wire hole that one communicates with outside is set in U-type groove and connect hydraulic hand-pump 16, slot is studded in U-type groove
Type rubber ring 2 realizes sealing by external hand hydraulic pump 16 to 15 outer circle of the pressure swelling of groove profile rubber ring 2 floating tubesheet；Shape
At floating tubesheet side seal structure.This sealing structure advantage is easy to operate, good airproof performance, and sealing effect can pass through handlance pair
The pressure size that groove profile rubber ring 2 applies is adjusted, reusable after pressure release.Pressure testing part 1 is close to shell with the end face of housing parallel
Body, and pass through the fixing end of pressure testing part 1 and outer 4 fit sealing of skull side flange.
The closing of movable tube sheets heat exchanger floating tubesheet side can be realized by the pressure testing system, and can be incited somebody to action during pressure testing
Both ends tube sheet outer end face, which is exposed, realizes the purpose of macroscopic examination.And groove profile rubber ring is bumped into U-type groove, pass through external hand
The sealing structure that hydraulic pump seals the pressure swelling floating tubesheet outer circle realization of groove profile rubber ring, easy to operate, good airproof performance,
Sealing effect can be adjusted the pressure size that groove profile rubber ring applies by handlance, reusable after pressure release.
The floating head heat exchanger tube bank pressure testing system of the present invention can meet pipeline of floating-head heat exchanger beam pressure testing, install pressure testing system additional
It can intuitively check that heat exchanger tube, exchanger tubes and tubesheets weld strength and the leak test of tube bank are examined by the pressure testing of heat exchanging device shell afterwards
It tests.The pressure testing system simple operation, dependable performance, the scope of application are big.Responsible measures guarantee is provided for equipment making quality inspection.
The foregoing is only a preferred embodiment of the present invention, it is all according to shape of the present invention, construction, feature and
Equivalent changes and modifications made by spirit should all be included within protection scope of the present invention.
Claims (5)
1. a kind of pressure testing system for movable tube sheets heat exchanger, it is characterised in that：The pressure testing system for movable tube sheets heat exchanger
System includes：Floating tubesheet side fixed structure, floating tubesheet side enclosed construction, fixed tube sheet sealing structure and seal structure for casing
Composition；Floating tubesheet side fixed structure, floating tubesheet side seal close structure setting in floating tubesheet side for fixing and sealing
Floating tubesheet；The fixed tube sheet sealing structure setting is with fixed tube sheet side for sealing fixed tube sheet；The housing seal knot
The shell one end that structure is set to floating tubesheet side is used for seal casinghousing, is made of on heat exchangers above structure setting for raising the nose above water to breathe
The pressure testing system of formula heat exchanger；Wherein,
Floating tubesheet side fixed structure includes：In floating tubesheet (15) one end, one pressure testing part (1) and outer skull side method are set
Blue (4), which are fixedly connected, realizes that floating tubesheet side seal closes；Fixed tube sheet end is arranged a gland flange (8) and is connect with shell flange (7)
Sealing is realized in fastening；
The floating tubesheet side seal structure includes：It is set respectively at pressure testing part (1) position corresponding with floating tubesheet (15) outer circle
A U-type groove is set, and the wire hole that one communicates with outside is set in U-type groove and connect hydraulic hand-pump, groove profile is studded in U-type groove
Rubber ring (2) is realized groove profile rubber ring (2) pressure swelling floating tubesheet (15) outer circle by external hand hydraulic pump (16) close
Envelope；
The fixed tube sheet sealing structure includes：Fixed tube sheet (11) and shell (6) sealed set, gland (8) is by fixed tube sheet
(11) squeezed tight realizes fixed tube sheet side seal on shell flange (7)；
The seal structure for casing includes：Shell is close in pressure testing part (1) end face parallel with shell (6), and passes through pressure testing part (1)
Fixing end and outer skull side flange (4) fit sealing.
2. the pressure testing system according to claim 1 for movable tube sheets heat exchanger, it is characterised in that：The pressure testing part (1)
For not reciprocity concave structure part, horizontal end face and housing parallel are simultaneously close to shell；One vertical connection end and outer skull side method
Blue (4) realize docking fit sealing by the first bolt (14), the first gasket (3).
3. the pressure testing system according to claim 2 for movable tube sheets heat exchanger, it is characterised in that：The pressure testing part (1)
Vertical connection end inside and outside diameter it is identical as outer skull side flange (4), number of bolt hole, size and distribution with outer skull side
The bolt hole of flange (4) is identical.
4. the pressure testing system according to claim 1 for movable tube sheets heat exchanger, it is characterised in that：The fixed tube sheet is close
In seal structure, fixed tube sheet (11) squeezed tight on shell flange (7), is passed through the second bolt (9), the second pad by gland (8)
Fixed tube sheet side seal is realized in piece (10) fastening.
5. the pressure testing system according to claim 1 or 4 for movable tube sheets heat exchanger, it is characterised in that：The gland (8)
For annular, internal diameter, outer diameter are identical as shell flange (7), number of bolt hole, size and distribution with shell flange (7) bolt
Hole is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953060.XA CN105486460B (en) | 2015-12-17 | 2015-12-17 | A kind of pressure testing system for movable tube sheets heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953060.XA CN105486460B (en) | 2015-12-17 | 2015-12-17 | A kind of pressure testing system for movable tube sheets heat exchanger |
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| Publication Number | Publication Date |
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| CN105486460A CN105486460A (en) | 2016-04-13 |
| CN105486460B true CN105486460B (en) | 2018-10-02 |
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| CN201510953060.XA Active CN105486460B (en) | 2015-12-17 | 2015-12-17 | A kind of pressure testing system for movable tube sheets heat exchanger |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699201B (en) * | 2016-04-14 | 2018-09-14 | 沈阳汇博热能设备有限公司 | High pressure shell pass type pressure testing device for floating head type heat exchanger |
| CN106441725B (en) * | 2016-10-11 | 2019-02-05 | 北京航空航天大学 | One kind being used for micro- diameter thin-wall tube square heat exchanger high pressure air-tightness detection tool equipment |
| CN107064290A (en) * | 2016-12-30 | 2017-08-18 | 北京工业大学 | Steel oil pipeline defects detection simulating lab test system based on amount magnetic technology |
| CN107543658A (en) * | 2017-10-23 | 2018-01-05 | 张化机（苏州）重装有限公司 | A kind of mounting structure of test fixture and floating head heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503332U (en) * | 2009-07-29 | 2010-06-09 | 洛阳双瑞特种装备有限公司 | Packing box for hydraulic test on floating tube sheet end of floating head type heat exchanger |
| CN202614479U (en) * | 2012-05-18 | 2012-12-19 | 张家港化工机械股份有限公司 | Pressure testing fixture for floating head type heat exchangers |
| CN104215410A (en) * | 2014-09-26 | 2014-12-17 | 河南科技大学 | Simple floating heat exchanger pressure test tool |
| CN204314019U (en) * | 2015-01-06 | 2015-05-06 | 辽宁华源风力发电设备制造有限公司 | Hook circle movable tube sheets heat exchanger shell side structure for pressure test |
-
2015
- 2015-12-17 CN CN201510953060.XA patent/CN105486460B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503332U (en) * | 2009-07-29 | 2010-06-09 | 洛阳双瑞特种装备有限公司 | Packing box for hydraulic test on floating tube sheet end of floating head type heat exchanger |
| CN202614479U (en) * | 2012-05-18 | 2012-12-19 | 张家港化工机械股份有限公司 | Pressure testing fixture for floating head type heat exchangers |
| CN104215410A (en) * | 2014-09-26 | 2014-12-17 | 河南科技大学 | Simple floating heat exchanger pressure test tool |
| CN204314019U (en) * | 2015-01-06 | 2015-05-06 | 辽宁华源风力发电设备制造有限公司 | Hook circle movable tube sheets heat exchanger shell side structure for pressure test |
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| CN105486460A (en) | 2016-04-13 |
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Effective date of registration: 20180228 Address after: 124021 Hongqi Street, Shuangtaizi District, Panjin, Liaoning Applicant after: Northern Huajin Formosan Union Chemical Corporation Address before: 124021 Hongqi Street, Shuangtaizi District, Liaoning, China, No. 482, No. Applicant before: North Hua Jin Chemical Industry Group Co., Ltd |
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