CN210484599U - Pressure test tool for tube bundle shell side of floating head type heat exchanger - Google Patents
Pressure test tool for tube bundle shell side of floating head type heat exchanger Download PDFInfo
- Publication number
- CN210484599U CN210484599U CN201920607350.2U CN201920607350U CN210484599U CN 210484599 U CN210484599 U CN 210484599U CN 201920607350 U CN201920607350 U CN 201920607350U CN 210484599 U CN210484599 U CN 210484599U
- Authority
- CN
- China
- Prior art keywords
- ring
- culvert
- stuffing
- shell
- flange
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000012856 packing Methods 0.000 claims abstract description 56
- 239000000945 filler Substances 0.000 claims abstract description 48
- 238000003825 pressing Methods 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 abstract description 11
- 238000013461 design Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a pressure test tool for a tube bundle shell side of a floating head type heat exchanger, which comprises a stuffing culvert stuffing pressing ring and an O-shaped rubber sealing ring; one side of the stuffing culvert is in flange sealing connection with the outer head cover side of the floating head type heat exchanger, the movable tube plate is arranged in a stuffing culvert shell ring of the stuffing culvert, the stuffing clamping ring comprises a stuffing clamping ring shell ring, one end of the stuffing clamping ring shell ring, which is positioned in the stuffing culvert shell ring, is abutted against the sealing surface of the movable tube plate, and the other end of the stuffing clamping ring shell ring is in flange connection with the stuffing culvert. The utility model discloses the sealed type that adopts packing clamping ring to compress tightly the sealed face of activity tube sheet at heat exchanger shell side and activity tube sheet, through the length of control filler culvert shell ring and packing clamping ring shell ring, just can satisfy the needs that the activity tube sheet stretches out the different length of heat exchanger barrel, strengthened the commonality of pressure testing frock and having strengthened. The first sealing ring and the second sealing ring enable the sealing element to have interchangeability, and the sealing element can be repeatedly used, is low in use cost and is convenient and simple to install and use.
Description
Technical Field
The utility model discloses a chemical enterprise is used for floating head heat exchanger tube bank preparation and overhauls the frock whether leaked with the in-process shell side pressure testing inspection heat exchanger tube bank, concretely relates to floating head heat exchanger tube bank shell side pressure testing frock.
Background
The traditional pressure test tool is poor in universality, and the traditional pressure test tool cannot be interchanged due to the fact that the lengths of the heat exchanger tube bundles extending out of the shell of the heat exchanger are different for different heat exchangers with the same nominal diameter and the same design pressure; the traditional pressure test tool has many accessories, is inconvenient to install and use and has higher requirement on the operation skill of workers; the traditional pressure test tool sealing element is not universal, can not be reused and has high use cost.
The invention content is as follows:
the utility model aims at providing a floating head heat exchanger tube bank shell side pressure testing frock installs convenient to use, sealed effectual, the device that sealing member consumptive material is with low costs, has the commonality to overcome the problem that exists among the background art.
In order to realize the purpose, the technical scheme of the utility model is that:
a pressure test tool for a tube bundle shell side of a floating head type heat exchanger comprises a packing culvert and a packing pressing ring;
one side of the stuffing culvert is in flange sealing connection with the outer head cover side of the floating head type heat exchanger, the movable tube plate is arranged in a stuffing culvert shell ring of the stuffing culvert, the stuffing clamping ring comprises a stuffing clamping ring shell ring, one end of the stuffing clamping ring shell ring, which is positioned in the stuffing culvert shell ring, is abutted against the sealing surface of the movable tube plate, and the other end of the stuffing clamping ring shell ring is in flange connection with the stuffing culvert.
Preferably, the two ends of the filler culvert shell ring are respectively provided with a first filler culvert flange and a second filler culvert flange, and the size of the first filler culvert flange is matched with that of the outer head cover side flange of the floating head type heat exchanger and is connected through bolts.
Preferably, a first sealing structure is arranged between the first packing culvert flange and the outer head cover side flange.
Preferably, the first sealing structure comprises an annular groove formed in the first filler culvert flange, a first sealing ring is arranged in the annular groove, and the first sealing ring is an O-shaped rubber sealing ring.
Preferably, the outer wall of the packing clamping ring cylindrical shell is matched with the inner wall of the packing culvert cylindrical shell.
Preferably, one end of the packing pressing ring shell section, which is positioned outside the packing culvert shell section, is provided with a packing pressing ring flange, and the packing pressing ring flange is matched with the second packing culvert flange in size and is connected with the second packing culvert flange through bolts.
Preferably, a second sealing structure is arranged between the packing pressing ring cylinder section and the sealing surface of the movable tube plate, the second sealing structure comprises an outer groove and a second sealing ring, the outer groove is arranged at one end, abutted against the sealing surface of the movable tube plate, of the packing pressing ring cylinder section, the second sealing ring is arranged between the outer groove and the movable tube plate, and the second sealing ring is an O-shaped rubber sealing ring.
Preferably, the degree of the outer groove ranges from 13 ° to 18 °.
Preferably, the first sealing ring and the second sealing ring are O-shaped rubber sealing rings with the diameter of phi 20.
The beneficial effects of the utility model reside in that: the utility model discloses the sealed type that adopts packing clamping ring to compress tightly the sealed face of activity tube sheet at heat exchanger shell side and activity tube sheet, through the length of control filler culvert shell ring and packing clamping ring shell ring, just can satisfy the needs that the activity tube sheet stretches out the different length of heat exchanger barrel, strengthened the commonality of pressure testing frock and having strengthened. The joint of the outer head cover side flange and the first packing culvert flange is sealed by an O-shaped rubber sealing ring, the joint surface of the flange is provided with a groove, the O-shaped rubber sealing ring can bear the maximum pressure and can reach 100MPa, the sealing effect is good, after the sealing surface is compressed, repeated fastening is basically not needed in the pressing process, and labor and time are saved. The utility model discloses a first sealing washer, second sealing washer be O shape rubber seal, all adopt same diameter rubber circle strip to tailor according to sealed face diameter, make sealing element have interchangeability, repeatedly usable, use cost is low. The tool is fastened by bolts and nuts, and is compact in structure, convenient and simple to install and use.
Drawings
Figure 1 is a schematic overall structure diagram of the embodiment of the invention,
figure 2 is an enlarged view of the point of figure 1A,
figure 3 is a schematic structural view of a stuffing box of an embodiment of the present invention,
figure 4 is an enlarged view at figure 3B,
figure 5 is a schematic structural diagram of a packing pressing ring according to an embodiment of the present invention,
fig. 6 is an enlarged view of fig. 5C.
In the figure: 1-heat exchanger cylinder, 2-outer head cover side flange, 3-first packing culvert flange, 4-first sealing ring, 5-second packing culvert flange, 6-packing clamping ring flange, 7-packing clamping ring shell ring, 8-second sealing ring, 9-movable tube plate, 10-clamping ring 10, 11-fixed tube plate, 12-gasket, 13-heat exchange tube, 14-tube box side flange, 15-packing culvert shell ring, 16-groove and 17-outer bevel.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
A pressure test tool for a tube bundle shell side of a floating head type heat exchanger comprises a packing culvert, a packing pressing ring and an O-shaped rubber sealing ring;
one side of the stuffing culvert is connected with the flange at the outer head cover side of the floating head type heat exchanger in a sealing manner, the movable tube plate 9 is arranged in the stuffing culvert shell ring 15 of the stuffing culvert, the stuffing clamping ring comprises a stuffing clamping ring shell ring 7, one end of the stuffing clamping ring shell ring 7, which is positioned in the stuffing culvert shell ring 15, is abutted against the sealing surface of the movable tube plate 9, and the other end of the stuffing clamping ring shell ring 7 is connected with the stuffing culvert.
The both ends of filler culvert shell ring 15 are equipped with first filler culvert flange 3 and second filler culvert flange 5 respectively, and the size of first filler culvert flange 3 matches through bolted connection with the size phase-match of the outer head of floating head heat exchanger lid side flange 2.
A first sealing structure is arranged between the first filler culvert flange 3 and the outer head cover side flange 2; the first sealing structure comprises an annular groove 16 formed in a first filler culvert flange 3, a first sealing ring 4 is arranged in the annular groove 16, the outer wall of a filler pressing ring shell ring 7 is matched with the inner wall of a filler culvert shell ring 15, one end, located outside the filler culvert shell ring 15, of the filler pressing ring shell ring 7 is provided with a filler pressing ring flange 6, and the filler pressing ring flange 6 is matched with the second filler culvert flange 5 in size and is connected with the second filler culvert flange 5 through bolts.
A second sealing structure is arranged between the packing pressing ring cylinder section 7 and the movable tube plate 9, the second sealing structure comprises an outer slope 17 arranged at one end, abutted against the movable tube plate 9, of the packing pressing ring cylinder section 7 and a second sealing ring 8 arranged between the outer slope 17 and the movable tube plate 9, the degree range of the outer slope 17 is 13 degrees to 18 degrees, and the degree range of the outer slope 17 is preferably 15 degrees.
Fig. 1 is the utility model discloses floating head heat exchanger tube bank shell side pressure testing frock field usage installation map.
Fixed tube sheet 11+ heat exchange tube 13+ activity tube sheet 9 constitutes floating head heat exchanger tube bank, and the structural style that still adopts original clamping ring 10+ gasket 12+ bolt, nut fastening in fixed tube sheet 11 one side when floating head heat exchanger tube bank preparation and maintenance in-process shell side pressure testing leak hunting, and the tube box side flange 14 of clamping ring 10 and heat exchanger barrel passes through the bolt and nut connection, only uses this novel frock in activity tube sheet 9 side.
The structure of the embodiment comprises a packing culvert (see figure 3), a packing clamping ring (see figure 5), a first sealing ring 4 and a second sealing ring 8.
The filler culvert structure is shown in figure 3 and is formed by assembling and welding a first filler culvert flange 3, a filler culvert shell ring and a second filler culvert flange 5. A groove 16 is formed in the first filler culvert flange 3 for installing a first sealing ring 4, the first filler culvert flange 3 and the outer head cover side flange 2 are fastened through bolts and nuts, and the first sealing ring 4 is compressed to form sealing. First filler culvert flange 3 adopts NB/T47022 type B flat welding flange's structural style, and second filler culvert flange 5 adopts the structural style of plate-type flat welding flange, and first filler culvert flange 3, second filler culvert flange 5 are formed with the steel sheet preparation, and the cost of manufacture is low. The thickness of the filler culvert shell section is designed according to the design pressure, and the length of the filler culvert shell section is determined according to the maximum length of the movable tube plate 9 extending out of the heat exchanger shell 1 measured on the heat exchanger tube bundle on site for a long time. The filler culvert shell ring is made by rolling steel plates. Considering that the filler culvert shell ring has out-of-roundness in plate rolling and welding manufacturing, in order to better control the gap between the movable tube plate 9 and the filler culvert shell ring to realize good sealing effect, the inner hole of the filler culvert shell ring is turned after the filler culvert is formed by assembly welding.
The packing clamping ring structure is shown in fig. 5 and is formed by assembling and welding a packing clamping ring flange 6 and a packing clamping ring cylindrical shell 7, the packing clamping ring flange 6 adopts a plate type flat welding flange structure, the thickness of the packing clamping ring cylindrical shell 7 is determined to be 16mm according to the gap between the spigot of the movable tube plate 9 and the inner hole of the packing culvert cylindrical shell, an outer bevel 17 with an angle of 15 degrees is formed in the end face of the end part of the packing clamping ring cylindrical shell 7, and the second sealing ring 8 is tightly pressed on the gap between the movable tube plate 9 and the packing culvert cylindrical shell by utilizing the bevel of the bevel 17. The length of the filler culvert shell ring is determined according to the minimum length of the movable tube plate 9 extending out of the heat exchanger shell 1 measured on the heat exchanger tube bundle on site for a long time.
The first filler culvert flange 3 is designed according to the design pressure and the nominal diameter of the heat exchanger shell so as to ensure that the first filler culvert flange 3 is connected with the outer head cover side flange 2 in a matched manner. The design sizes of the second stuffing culvert flange 5 and the stuffing pressing ring flange 6 are consistent so as to ensure the matching connection of the stuffing culvert and the stuffing pressing ring. For pressure test tools with the same nominal diameter and different design pressures (the design pressures commonly used by people are 1.6MPa, 2.5MPa and 4.0MPa), the second filler culvert flange 5 and the filler pressing ring flange 6 can be designed according to 2.5MPa, so that the filler pressing rings of the pressure test tools with the same nominal diameter and different design pressures can be interchanged and are convenient to manufacture.
The first sealing ring 4 and the second sealing ring 8 are cut by rubber round strips according to the diameter of a sealing surface, and the joint is cut into 10-15-degree oblique angles to be directly lapped, or bonded by glue, or wound and fixed by a PTFE (polytetrafluoroethylene) adhesive tape. Through the sealing of the first sealing ring 4 and the second sealing ring 8, a closed cavity is formed on the shell pass of the heat exchanger, and the shell pass can be pressurized.
The sealing between the shell side of the heat exchanger and the movable tube plate 9 is realized by adopting a mode that a packing pressing ring presses the sealing surface of the movable tube plate 9, and the requirement that the movable tube plate 9 extends out of the heat exchanger barrel 1 by different lengths can be met by controlling the lengths of the packing culvert barrel section and the packing pressing ring barrel section 7. Therefore, the pressure test can be completed by only one set of tool for the heat exchangers with the same nominal diameter and the same pressure level, and the second packing culvert flange 5 and the packing clamping ring flange 6 of the pressure test tool with the same nominal diameter and the common pressures of 1.6MPa, 2.5MPa and 4.0MPa are designed into a specification, so that the packing clamping rings of the pressure test tools with the same nominal diameter and different pressure levels can be exchanged, and the universality of the pressure test tool is enhanced. On the other hand, the joint of the outer head cover side flange 2 and the first stuffing culvert flange 3 is sealed by using an O-shaped rubber sealing ring sealing principle, the maximum pressure can be borne by adopting a mode that a proper groove is arranged on a joint surface to install the O-shaped rubber sealing ring, the sealing effect is good, after the sealing surface is compressed, repeated fastening is basically not needed in the pressing process, and labor and time are saved. The first sealing ring 4 and the second sealing ring 8 of the sealing element are uniformly cut by rubber round strips with the same diameter according to the diameter of the sealing surface, so that the sealing element has interchangeability, can be repeatedly used and has low use cost. And moreover, the tool is fastened by bolts and nuts, so that the structure is compact, and the installation and the use are convenient and simple.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims. Parts of the description that are not described in detail are known to the person skilled in the art.
Claims (8)
1. The utility model provides a floating head heat exchanger tube bank shell side pressure testing frock which characterized in that: comprises a stuffing culvert and a stuffing pressing ring;
one side of the stuffing culvert is connected with the flange at the outer head cover side of the floating head type heat exchanger in a sealing manner, the movable tube plate (9) is arranged in the stuffing culvert shell ring (15) of the stuffing culvert, the stuffing clamping ring comprises a stuffing clamping ring shell ring (7), the stuffing clamping ring shell ring (7) is positioned at one end in the stuffing culvert shell ring (15) and is abutted against the sealing surface of the movable tube plate (9), and the other end of the stuffing clamping ring shell ring (7) is connected with the stuffing culvert flange.
2. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 1, is characterized in that: the two ends of the filler culvert shell ring (15) are respectively provided with a first filler culvert flange (3) and a second filler culvert flange (5), and the size of the first filler culvert flange (3) is matched with that of the outer head cover side flange of the floating head type heat exchanger and is connected through bolts.
3. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 2, is characterized in that: and a first sealing structure is arranged between the first packing culvert flange (3) and the outer head cover side flange.
4. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 3, is characterized in that: the first sealing structure comprises an annular groove (16) formed in the first packing culvert flange (3), a first sealing ring (4) is arranged in the annular groove (16), and the first sealing ring (4) comprises an O-shaped rubber sealing ring.
5. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 2, is characterized in that: the outer wall of the packing pressing ring shell section (7) is matched with the inner wall of the packing culvert shell section (15).
6. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 2, is characterized in that: and one end of the packing pressing ring shell section (7) outside the packing culvert shell section (15) is provided with a packing pressing ring flange (6), and the packing pressing ring flange (6) is matched with the second packing culvert flange (5) in size and is connected with the second packing culvert flange through bolts.
7. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 1, is characterized in that: and a second sealing structure is arranged between the packing pressing ring cylinder section (7) and the sealing surface of the movable tube plate (9), the second sealing structure comprises an outer groove (17) which is arranged at one end of the packing pressing ring cylinder section (7) and abutted against the movable tube plate (9), and a second sealing ring (8) between the outer groove (17) and the movable tube plate (9), and the second sealing ring (8) comprises an O-shaped rubber sealing ring.
8. The tool for testing the pressure of the shell side of the tube bundle of the floating head heat exchanger according to claim 7, is characterized in that: the degree range of the outer groove (17) is 13-18 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920607350.2U CN210484599U (en) | 2019-04-29 | 2019-04-29 | Pressure test tool for tube bundle shell side of floating head type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920607350.2U CN210484599U (en) | 2019-04-29 | 2019-04-29 | Pressure test tool for tube bundle shell side of floating head type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484599U true CN210484599U (en) | 2020-05-08 |
Family
ID=70508014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920607350.2U Active CN210484599U (en) | 2019-04-29 | 2019-04-29 | Pressure test tool for tube bundle shell side of floating head type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990095A (en) * | 2019-04-29 | 2019-07-09 | 武汉检安石化工程有限公司 | A kind of pipeline of floating-head heat exchanger beam shell side structure for pressure test |
-
2019
- 2019-04-29 CN CN201920607350.2U patent/CN210484599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990095A (en) * | 2019-04-29 | 2019-07-09 | 武汉检安石化工程有限公司 | A kind of pipeline of floating-head heat exchanger beam shell side structure for pressure test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4171142A (en) | Leak repair clamp | |
| CN210484599U (en) | Pressure test tool for tube bundle shell side of floating head type heat exchanger | |
| CN207049512U (en) | A kind of pipeline is not got angry online device for plugging | |
| CN211289086U (en) | Novel coal injection pipeline loose joint device | |
| CN208845916U (en) | A kind of run-resistant assembling pipe joint | |
| CN214309418U (en) | Pressure testing device of floating head heat exchanger | |
| CN211289108U (en) | Novel building heating and ventilation pipeline connecting device | |
| CN202648886U (en) | Pressure testing tool for hook ring floating head heat exchanger | |
| CN211292306U (en) | Flange gland type pressure test mould for floating head heat exchanger | |
| CN210739642U (en) | Drainage pipeline assembly | |
| CN210716537U (en) | Plugging device | |
| CN211477509U (en) | Air tightness detection quick connector of pneumatic diaphragm pump | |
| CN220472957U (en) | Pressure test tool for floating head type heat exchanger | |
| CN213393968U (en) | Sealing joint structure | |
| SU804985A1 (en) | Rotary joint of pipelines | |
| CN216896312U (en) | L type connects with adjustable | |
| CN206112321U (en) | Double containment formula pipeline connecting structure | |
| CN211716013U (en) | Online leaking stoppage tool for local slight damage of high-pressure gas pipeline corrugated compensator | |
| CN214743944U (en) | Pipeline connector | |
| CN214892618U (en) | A plugging device for chemical industry equipment | |
| CN212671764U (en) | Pressure gauge connecting equipment | |
| CN212776247U (en) | Flat plate sealing gasket for repairing three-way drinking water pipeline | |
| CN216745683U (en) | Silicon carbide double-tube-plate heat exchanger | |
| CN213455984U (en) | Tool for hydrostatic test of heat exchanger tube head | |
| CN212407880U (en) | Anti-skid wear-resistant welding neck flange |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A pressure test tooling for tube bundle shell side of floating head heat exchanger Effective date of registration: 20220124 Granted publication date: 20200508 Pledgee: Qingshan Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN JIAN'AN PETROCHEMICAL ENGINEERING Co.,Ltd. Registration number: Y2022420000028 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200508 Pledgee: Qingshan Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN JIAN'AN PETROCHEMICAL ENGINEERING Co.,Ltd. Registration number: Y2022420000028 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |