CN212747477U - Special sealing device for heat exchanger - Google Patents
Special sealing device for heat exchanger Download PDFInfo
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- CN212747477U CN212747477U CN202021533521.0U CN202021533521U CN212747477U CN 212747477 U CN212747477 U CN 212747477U CN 202021533521 U CN202021533521 U CN 202021533521U CN 212747477 U CN212747477 U CN 212747477U
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- tube plate
- composite tube
- heat exchanger
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- tube sheet
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Abstract
The utility model relates to a special sealing device of heat exchanger, be greater than the first compound tube sheet of heat exchanger shell external diameter including the internal diameter, compound tube sheet in the middle of being equipped with in the middle of first compound tube sheet and the compound tube sheet of second, first compound tube sheet, all be equipped with a plurality of aperture pipeline through-holes always on the compound tube sheet of second and middle, and first compound tube sheet, the position one-to-one of pipeline through-hole on the compound tube sheet of second and middle compound tube sheet, heat transfer pipeline phase-match in a plurality of pipeline through-holes and the heat exchanger, be equipped with seal assembly in the pipeline through-hole on the compound tube sheet of middle, the seal assembly both ends extend to respectively on first compound tube sheet and the compound tube sheet of second, first compound tube sheet, all be equipped with a plurality of corresponding through-holes on the compound tube sheet of. The utility model discloses simple structure, the leakproofness is good, and high temperature resistant corrosion-resistant is stable firm, improves the security performance, increase of service life, and application scope is wide.
Description
Technical Field
The utility model particularly relates to a special sealing device of heat exchanger.
Background
The sealing device of heat exchanger is a common equipment of heat exchanger, current heat exchanger sealing device mainly seals by a tube sheet, appear damaging, leaking after using for a long time easily, owing to mainly be used in chemical industry enterprise, so can cause with big loss and potential safety hazard, and can not seal well between the single tube sheet, and the sealing washer that seals up the adoption at present is ordinary material mostly, though with low costs, but not high temperature resistant, corrosion-resistant effect is poor, so need improve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a special sealing device of heat exchanger to solve current technical problem.
In order to achieve the above object, the utility model provides a following technical scheme: a sealing device special for a heat exchanger comprises a first composite tube plate with the inner diameter larger than the outer diameter of a shell of the heat exchanger, a middle composite tube plate is arranged between the first composite tube plate and the second composite tube plate, a plurality of pipeline through holes with the same diameter are arranged on the first composite tube plate, the second composite tube plate and the middle composite tube plate, the positions of the pipeline through holes on the first composite tube plate, the second composite tube plate and the middle composite tube plate are in one-to-one correspondence, the pipeline through holes are matched with heat exchange pipelines in the heat exchanger, a sealing assembly is arranged in the pipeline through hole on the middle composite tube plate, two ends of the sealing assembly respectively extend to the first composite tube plate and the second composite tube plate, a plurality of corresponding through holes are arranged on the outer rings of the first composite tube plate, the second composite tube plate and the middle composite tube plate, and the through holes are respectively kept on the same horizontal line with a fixing hole, the fixing holes, the through holes and the connecting holes are sequentially connected through fixing rods, two ends of each fixing rod are fixed through nuts, and gaskets are sleeved between the nuts and the fixing rods.
The utility model discloses a further improvement lies in: seal assembly comprises FFKM sealing washer, PTFE sealing washer and FKM sealing washer, and the PTFE sealing washer both sides bond respectively has FFKM sealing washer and FKM sealing washer, and the width of PTFE sealing washer is greater than the sum of FFKM sealing washer and FKM sealing washer width, and the PTFE sealing washer is connected with first compound tube sheet, and the FKM sealing washer is connected with the compound tube sheet of second.
The utility model discloses a further improvement lies in: the inner diameters of the through holes are consistent with those of the fixing holes in the heat exchanger shell and the connecting holes in the inlet and outlet shells, and the inner diameter of each through hole is equal to the outer diameter of the fixing rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, adopt the compound tube sheet stack of three-layer to use effectively to strengthen sealing performance, by the FFKM sealing washer simultaneously, the seal assembly that PTFE sealing washer and FKM sealing washer are constituteed, it is sealed to form a whole enhancement to heat exchanger pipe fitting and pipeline through-hole formation, can prevent effectively that the pipe fitting from sliding, strengthen overall structure's sealing performance simultaneously, can use under 180 ℃ -185 ℃ high temperature environment, and acidproof corrosion-resistant, effectively prevent to reveal, improve the security performance, prolonged service life, wide application scope, the through-hole that the outside was equipped with adopts the bayonet connection of dead lever effectively to improve being connected between sealing device and the heat exchanger, effectively strengthen the leakproofness through the use of packing ring, the wearability of connection is ensured, improve sealed steadiness and comprehensive economic benefits.
Description of the drawings:
FIG. 1: the utility model is an external view;
FIG. 2: the utility model discloses a cross-sectional view of the first composite tube plate;
FIG. 3: the utility model has a partial structure schematic diagram;
FIG. 4: the utility model discloses seal assembly's cross-sectional view.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a technical scheme:
a special sealing device for a heat exchanger comprises a first composite tube plate 1 with the inner diameter larger than the outer diameter of a shell of the heat exchanger, a middle composite tube plate 3 is arranged between the first composite tube plate 1 and a second composite tube plate 2, a plurality of pipeline through holes 4 with the same diameter are formed in the first composite tube plate 1, the second composite tube plate 2 and the middle composite tube plate 3, the positions of the pipeline through holes 4 in the first composite tube plate 1, the second composite tube plate 2 and the middle composite tube plate 3 are in one-to-one correspondence, the pipeline through holes 4 are matched with heat exchange pipelines in the heat exchanger, a sealing assembly 5 is arranged in the pipeline through hole 4 in the middle composite tube plate 3, two ends of the sealing assembly 5 respectively extend onto the first composite tube plate 1 and the second composite tube plate 2, a plurality of corresponding through holes 6 are formed in outer rings of the first composite tube plate 1, the second composite tube plate 2 and the middle composite tube plate 3, and the plurality of through holes 6 are respectively kept on the same horizontal line with On, fixed orifices, through-hole 6 and connecting hole connect gradually through dead lever 7, and the both ends of dead lever 7 are fixed through passing through nut 8, and the cover has packing ring 9 between nut 8 and the dead lever 7, the through-hole 6 is unanimous with the fixed orifices on the heat exchanger casing and the internal diameter of importing and exporting the connecting hole on the casing, and the internal diameter of through-hole 6 equals the external diameter of dead lever 7. The three-layer composite tube plate is overlapped to effectively enhance the sealing performance, the through hole arranged outside adopts the plug-in connection of the fixed rod to effectively improve the connection between the sealing device and the heat exchanger, the sealing performance and the wear resistance are effectively enhanced through the use of the gasket, the connection firmness is ensured, and the sealing stability and the comprehensive economic benefit are improved.
In this embodiment, the sealing assembly 5 is composed of an FFKM sealing ring 51, a PTFE sealing ring 52 and an FKM sealing ring 53, the FFKM sealing ring 51 and the FKM sealing ring 53 are respectively bonded to both sides of the PTFE sealing ring 52, the width of the PTFE sealing ring 52 is greater than the sum of the widths of the FFKM sealing ring 51 and the FKM sealing ring 53, the PTFE sealing ring 52 is connected to the first composite tube sheet 1, and the FKM sealing ring 53 is connected to the second composite tube sheet 2. The sealing assembly consisting of the FFKM sealing ring, the PTFE sealing ring and the FKM sealing ring forms a whole to form an enhanced seal for the heat exchanger pipe fitting and a pipeline through hole, can effectively prevent the pipe fitting from sliding, simultaneously enhances the sealing performance of the whole structure, can be used in a high-temperature environment of 180-185 ℃, is acid-resistant and corrosion-resistant, effectively prevents leakage, improves the safety performance and prolongs the service life.
In this embodiment, the first composite tube plate 1, the second composite tube plate 2 and the middle composite tube plate 3 have the same structure, the heat exchanger tube is inserted into the corresponding tube through holes 4 on the first composite tube plate 1, the second composite tube plate 2 and the middle composite tube plate 3, wherein a sealing component is sleeved between the tube through hole 4 on the middle composite tube plate 3 and the heat exchanger tube for further sealing, meanwhile, the through holes 6 on the first composite tube plate 1, the second composite tube plate 2 and the middle composite tube plate 3 are respectively corresponding to the fixing holes on the heat exchanger shell and the connecting holes on the inlet and outlet shell, so that the fixing rods are kept on the same horizontal line, the fixing rods 7 are sequentially inserted into the fixing holes, the fixing rods 7 are sleeved with gaskets for two times, and are fixed by nuts, so that the inlet and outlet of the heat exchanger, the sealing.
The sealing assembly in the above embodiment has improved cost due to the special material, but can be better sealed due to the special material, and can be used for a long time in the environment of 180-185 ℃, and has good corrosion-resistant effect, wide application range, improved sealing precision and enhanced comprehensive economic benefit.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a special sealing device of heat exchanger, includes that the internal diameter is greater than first compound tube sheet (1) of heat exchanger casing external diameter, its characterized in that: the middle composite tube plate (3) is arranged between the first composite tube plate (1) and the second composite tube plate (2), a plurality of pipeline through holes (4) with a straight hole diameter are formed in the first composite tube plate (1), the second composite tube plate (2) and the middle composite tube plate (3), the positions of the pipeline through holes (4) in the first composite tube plate (1), the second composite tube plate (2) and the middle composite tube plate (3) are in one-to-one correspondence, the pipeline through holes (4) are matched with heat exchange pipelines in a heat exchanger, a sealing assembly (5) is arranged in the pipeline through hole (4) in the middle composite tube plate (3), two ends of the sealing assembly (5) respectively extend to the first composite tube plate (1) and the second composite tube plate (2), a plurality of corresponding through holes (6) are formed in outer rings of the first composite tube plate (1), the second composite tube plate (2) and the middle composite tube plate (3), the heat exchanger is characterized in that the through holes (6) are respectively kept on the same horizontal line with a fixing hole in the heat exchanger shell and connecting holes in the inlet and outlet shell, the fixing hole, the through holes (6) and the connecting holes are sequentially connected through a fixing rod (7), two ends of the fixing rod (7) are fixed through nuts (8), and gaskets (9) are sleeved between the nuts (8) and the fixing rod (7).
2. The special sealing device for the heat exchanger according to claim 1, wherein: the sealing assembly (5) comprises FFKM sealing ring (51), PTFE sealing ring (52) and FKM sealing ring (53), FFKM sealing ring (51) and FKM sealing ring (53) are bonded to PTFE sealing ring (52) both sides respectively, the width of PTFE sealing ring (52) is greater than the sum of FFKM sealing ring (51) and FKM sealing ring (53) width, PTFE sealing ring (52) is connected with first compound tube sheet (1), FKM sealing ring (53) is connected with second compound tube sheet (2).
3. The special sealing device for the heat exchanger according to claim 1, wherein: the inner diameters of the through holes (6) are consistent with those of the fixing holes in the heat exchanger shell and the connecting holes in the inlet and outlet shell, and the inner diameter of the through hole (6) is equal to the outer diameter of the fixing rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021533521.0U CN212747477U (en) | 2020-07-29 | 2020-07-29 | Special sealing device for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021533521.0U CN212747477U (en) | 2020-07-29 | 2020-07-29 | Special sealing device for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212747477U true CN212747477U (en) | 2021-03-19 |
Family
ID=75024284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021533521.0U Active CN212747477U (en) | 2020-07-29 | 2020-07-29 | Special sealing device for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212747477U (en) |
-
2020
- 2020-07-29 CN CN202021533521.0U patent/CN212747477U/en active Active
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