CN104215410A - Simple floating heat exchanger pressure test tool - Google Patents
Simple floating heat exchanger pressure test tool Download PDFInfo
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- CN104215410A CN104215410A CN201410501322.4A CN201410501322A CN104215410A CN 104215410 A CN104215410 A CN 104215410A CN 201410501322 A CN201410501322 A CN 201410501322A CN 104215410 A CN104215410 A CN 104215410A
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- pressure test
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Abstract
A simple floating heat exchanger pressure test tool comprises a heat exchanger barrel, a fixed tube plate, a floating tube plate and a heat exchange tube bundle. A tube box side flange and an outer head cover side flange are welded at two ends of the heat exchanger barrel respectively, the fixed tube plate and the floating tube plate are welded into an integral structure through the heat exchange tube bundle, the outer head cover side flange and the tube box side flange are matched to fix the fixed tube plate at one end of the heat exchanger barrel, the other end of the heat exchanger barrel is provided with a pressure test barrel section with the floating tube plate fixed in the section, the pressure test barrel section achieves connection of the heat exchanger barrel and the pressure test barrel section by means of matching of the tool flange arranged on the pressure test barrel section and the outer head cover side flange, a sealing gasket matched with an annular cutting groove formed in the inner surface of the pressure test barrel section is arranged on the floating tube plate, and an air hole applying pressing force on the sealing gasket is formed in the pressure test barrel section. The test tool avoids traditional welding connection of the pressure test barrel section and the floating tube plate, facilitates disassembly after pressure test and is good in sealing effect in the pressure test process.
Description
Technical field
The present invention relates to heat interchanger pressure test technology field, relate to specifically a kind of simple and easy float head heat-exchanger pressure test tool.
Background technology
In movable tube sheets heat exchanger structure, heat-exchanging tube bundle and tube head often lost efficacy because there is leakage, so pressure test leak-detecting becomes a vital step.In existing pressure testing equipment, some need to adopt hubbed flange, increases cost; Some pressure testing device complex structure, operation requirements is high; Some employings separately add a pipe nipple and outer skull flange welding, employing is carried out pressure testing with welding tooling and is not only bothered, and it is also larger to run into large diameter Welding of Heat-exchanger workload, and the rate that recycles of tooling device is the end relatively, waste material, and increase manufacturing cost.
Summary of the invention
The present invention, in order to solve the problems of the technologies described above, provides a kind of simple and easy float head heat-exchanger pressure test tool, and it has avoided pressure testing shell ring and traditional being welded to connect of floating tubesheet, the dismounting after being convenient to pressure testing and completing, and in pressure testing process good sealing effect.
The technical solution adopted in the present invention is: a kind of simple and easy float head heat-exchanger pressure test tool, comprise heat interchanger cylindrical shell, stationary tubesheet, floating tubesheet and be arranged on the heat-exchanging tube bundle in heat interchanger cylindrical shell, wherein, the two ends of heat interchanger cylindrical shell are welded with respectively tube case side flange and outer skull side flange, stationary tubesheet and floating tubesheet are by the heat-exchanging tube bundle structure that is welded as a whole, use channel flange and tube case side flange to coordinate the one end that stationary tubesheet is fixed on to heat interchanger cylindrical shell, the other end of described heat interchanger cylindrical shell is provided with floating tubesheet is fixed on to its inner pressure testing shell ring, pressure testing shell ring is coordinated and realizes being connected and fixed of heat interchanger cylindrical shell and pressure testing shell ring with outer skull side flange by the frock flange arranging on it, on the outline of described floating tubesheet, be provided with a gasket seal, gasket seal coordinates and realizes being tightly connected of floating tubesheet and pressure testing shell ring with the ring cutting groove of pressure testing shell ring inside surface setting, on pressure testing shell ring, be also provided with the pore that applies snap-in force to gasket seal.
Between described channel flange and tube case side flange and stationary tubesheet, be provided with O-ring seal.
Between described frock flange and outer skull side flange, be bolted to connection, and in bolt junction, O-ring seal be installed.
Beneficial effect of the present invention:
(1) gasket seal that pilot scale pressure cylinder of the present invention joint is improved to by being arranged in groove by traditional welding with floating tubesheet is connected, and has avoided dismounting difficulty, cost increase, the claim for eot that traditional welded structure causes after pressure testing completes and has made the drawbacks such as heat interchanger flange tissue deterioration;
(2) in the present invention except frock flange, pressure testing shell ring and pad, all the other are heat interchanger parts, have effectively saved material, have reduced frock expense.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is partial enlarged drawing of the present invention;
Mark in figure: 1, heat interchanger cylindrical shell, 2, heat-exchanging tube bundle, 3, stationary tubesheet, 4, floating tubesheet, 5, channel flange, 6, tube case side flange, 7, outer skull side flange, 8, frock flange, 9, pressure testing shell ring, 10, ring cutting groove, 11, gasket seal, 12, pore.
Embodiment
As shown in the figure, a kind of simple and easy float head heat-exchanger pressure test tool, comprise heat interchanger cylindrical shell 1, stationary tubesheet 3, floating tubesheet 4 and be arranged on the heat-exchanging tube bundle 2 in heat interchanger cylindrical shell 1, wherein, the two ends of heat interchanger cylindrical shell 1 are welded with respectively tube case side flange 6 and outer skull side flange 7, stationary tubesheet 3 and floating tubesheet 4 are by heat-exchanging tube bundle 2 structure that is welded as a whole, use channel flange 5 and tube case side flange 6 to coordinate the one end that stationary tubesheet 3 is fixed on to heat interchanger cylindrical shell 1, it is characterized in that: the other end of described heat interchanger cylindrical shell 1 is provided with floating tubesheet 4 is fixed on to its inner pressure testing shell ring 9, pressure testing shell ring 9 is coordinated and realizes being connected and fixed of heat interchanger cylindrical shell 1 and pressure testing shell ring 9 with outer skull side flange 7 by the frock flange 8 arranging on it, on the outline of described floating tubesheet 4, be provided with a gasket seal 11, gasket seal 11 coordinates with the ring cutting groove 10 of pressure testing shell ring 9 inside surface settings realizes being tightly connected of floating tubesheet 4 and pressure testing shell ring 9, on pressure testing shell ring 9, be also provided with the pore 12 that applies snap-in force to gasket seal 11, between described channel flange 5 and tube case side flange 6 and stationary tubesheet 3, be provided with O-ring seal, between described frock flange 8 and outer skull side flange 7, be bolted to connection, and in bolt junction, O-ring seal is installed.
The present invention in the course of the work, stationary tubesheet 3 is inserted in to tube case side flange 6, then channel flange 5 is installed, channel flange 5 is connected and is tightened with tube case side flange 6 use bolts, and stationary tubesheet 3 both sides and fixedly channel flange 5 and fixedly bobbin carriage side flange 6 places put O-ring seal, guarantee sealing, wherein, tube case side flange 6, heat interchanger cylindrical shell 1 and outer skull side flange 7 are the good structure of welding originally, stationary tubesheet 3 is the structure of originally having welded with heat-exchanging tube bundle 2 and floating tubesheet 4, gasket seal 11 is placed in ring cutting groove 10, frock flange 8 is used bolt to be connected with outer skull side flange 7, outer skull side flange 7 seals with the middle O-ring seal of placing of frock flange 8.After installation, pressurized air is passed into by pore 12, the snap-in force of generation fits tightly gasket seal 11 and floating tubesheet 3.According to hydraulic testing regulated procedure, exert pressure, after completion, frock flange 8, pressure testing shell ring 9 and pad 11 are unloaded.
In the present invention, frock flange, pressure testing shell ring, gasket seal are newly-increased utility appliance, and all the other are the parts of heat interchanger own.
In the present invention: (1) frock flange is standard flange according to outer this flange of skull side flange, standard is JB4721-1992 processing, and the thickness of size of seal contact face and flange fastener center circle diameter, fastener apertures size, frock flange is chosen according to the thickness of outer skull flange; (2) according to floating tubesheet external diameter, determine the internal diameter of pressure testing shell ring and the internal diameter of frock flange, pressure testing shell ring internal diameter and frock flange internal diameter Ф are than the large 3mm of the external diameter of floating tubesheet, the thickness of frock shell ring is generally got δ=45, and the location dimension of pressure testing shell ring pressed on ring grooving is determined by following size: the height of the length of heat-exchanging tube bundle, stationary tubesheet thickness, heat interchanger cylindrical shell, the length of heat interchanger cylindrical shell, the height of outer skull side flange, the thickness of floating tubesheet, heat-exchanging tube bundle stretch out the length of tube sheet, the thickness of pad; The degree of depth of ring cutting groove gets 20.
In the present invention, frock flange and the welding of pressure testing shell ring, the ring cutting groove of machine work pressure testing shell ring then, at the threaded hole of a M10 of the optional position of ring cutting groove processing, as pore, threaded hole connects air compressor; Gasket seal is arranged in the ring cutting groove of pressure testing shell ring processing, and then the M10 threaded hole by processing passes into air pressure and makes gasket seal and floating tubesheet fitting together tightly, plays sealing function.
In the present invention, can process the ring cutting groove of specification different pressures grade of the same race in pressure testing shell ring, the location dimension of ring cutting groove is with the variation adjustment of heat interchanger parameter size.
The present invention replaces traditional welded structure, after having avoided pressure testing to complete, need to connect pressure testing device is cut down, and then externally skull flange carries out mach mode, thereby the following drawback of having avoided this structure to cause: when (1) size of heat exchanger is larger, heat interchanger cylindrical shell and outer skull flange machine difficulty of processing are large; (2) in welding or cutting process, externally skull flange has carried out twice thermal cycle, makes flange microstructure coarsening, hardening of tissue embrittlement, the serviceable life of reducing heat interchanger.
Claims (3)
1. a simple and easy float head heat-exchanger pressure test tool, comprise heat interchanger cylindrical shell (1), stationary tubesheet (3), floating tubesheet (4) and be arranged on the heat-exchanging tube bundle (2) in heat interchanger cylindrical shell (1), wherein, the two ends of heat interchanger cylindrical shell (1) are welded with respectively tube case side flange (6) and outer skull side flange (7), stationary tubesheet (3) and floating tubesheet (4) are by heat-exchanging tube bundle (2) structure that is welded as a whole, use channel flange (5) and tube case side flange (6) to coordinate the one end that stationary tubesheet (3) is fixed on to heat interchanger cylindrical shell (1), it is characterized in that: the other end of described heat interchanger cylindrical shell (1) is provided with floating tubesheet (4) is fixed on to its inner pressure testing shell ring (9), pressure testing shell ring (9) is coordinated and realizes being connected and fixed of heat interchanger cylindrical shell (1) and pressure testing shell ring (9) with outer skull side flange (7) by the frock flange (8) arranging on it, on the outline of described floating tubesheet (4), be provided with a gasket seal (11), the ring cutting groove (10) that gasket seal (11) arranges with pressure testing shell ring (9) inside surface coordinates realizes being tightly connected of floating tubesheet (4) and pressure testing shell ring (9), on pressure testing shell ring (9), be also provided with the pore (12) that applies snap-in force to gasket seal (11).
2. a kind of simple and easy float head heat-exchanger pressure test tool as claimed in claim 1, is characterized in that: between described channel flange (5) and tube case side flange (6) and stationary tubesheet (3), be provided with O-ring seal.
3. a kind of simple and easy float head heat-exchanger pressure test tool as claimed in claim 1, is characterized in that: between described frock flange (8) and outer skull side flange (7), be bolted to connection, and in bolt junction, O-ring seal be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501322.4A CN104215410A (en) | 2014-09-26 | 2014-09-26 | Simple floating heat exchanger pressure test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501322.4A CN104215410A (en) | 2014-09-26 | 2014-09-26 | Simple floating heat exchanger pressure test tool |
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| Publication Number | Publication Date |
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| CN104215410A true CN104215410A (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410501322.4A Pending CN104215410A (en) | 2014-09-26 | 2014-09-26 | Simple floating heat exchanger pressure test tool |
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| CN (1) | CN104215410A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203269A (en) * | 2015-09-16 | 2015-12-30 | 东方电气(广州)重型机器有限公司 | Heat exchange tube and tube plate seal-welding helium leakage-detection device |
| CN105486460A (en) * | 2015-12-17 | 2016-04-13 | 北方华锦化学工业集团有限公司 | Pressure testing system for float head heat exchanger |
| CN105606308A (en) * | 2015-12-17 | 2016-05-25 | 北方华锦化学工业集团有限公司 | Split-type pressure testing system for floating heat exchanger |
| CN105699201A (en) * | 2016-04-14 | 2016-06-22 | 沈阳汇博热能设备有限公司 | High-pressure floating-head heat exchanger shell side pressure test device |
| 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 |
| CN116492697A (en) * | 2023-06-20 | 2023-07-28 | 扬州通扬化工设备有限公司 | Low-cost embedded reboiler and manufacturing method thereof |
-
2014
- 2014-09-26 CN CN201410501322.4A patent/CN104215410A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203269A (en) * | 2015-09-16 | 2015-12-30 | 东方电气(广州)重型机器有限公司 | Heat exchange tube and tube plate seal-welding helium leakage-detection device |
| CN105486460A (en) * | 2015-12-17 | 2016-04-13 | 北方华锦化学工业集团有限公司 | Pressure testing system for float head heat exchanger |
| CN105606308A (en) * | 2015-12-17 | 2016-05-25 | 北方华锦化学工业集团有限公司 | Split-type pressure testing system for floating heat exchanger |
| CN105486460B (en) * | 2015-12-17 | 2018-10-02 | 北方华锦化学工业股份有限公司 | A kind of pressure testing system for movable tube sheets heat exchanger |
| CN105699201A (en) * | 2016-04-14 | 2016-06-22 | 沈阳汇博热能设备有限公司 | High-pressure floating-head heat exchanger shell side pressure test device |
| 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 |
| 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 |
| CN116492697A (en) * | 2023-06-20 | 2023-07-28 | 扬州通扬化工设备有限公司 | Low-cost embedded reboiler and manufacturing method thereof |
| CN116492697B (en) * | 2023-06-20 | 2023-09-01 | 扬州通扬化工设备有限公司 | Low-cost embedded reboiler and manufacturing method thereof |
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Application publication date: 20141217 |