CN115420124A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN115420124A CN115420124A CN202211179284.6A CN202211179284A CN115420124A CN 115420124 A CN115420124 A CN 115420124A CN 202211179284 A CN202211179284 A CN 202211179284A CN 115420124 A CN115420124 A CN 115420124A
- Authority
- CN
- China
- Prior art keywords
- tube
- heat exchange
- tube plate
- yielding
- heat exchanger
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0229—Double end plates; Single end plates with hollow spaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a heat exchanger, which comprises a shell, a tube box, an outer head cover, a floating head cover, a tube plate I, a tube plate II, a baffle plate, a plurality of heat exchange tubes, a plurality of partition plates and a hook ring, wherein the tube plate I is provided with a plurality of sleeves which correspond to the heat exchange tubes one by one, and through holes are formed in the positions, corresponding to the sleeves, of the tube plate I; the tube plate II and the plurality of baffle plates are respectively provided with a yielding hole for yielding the heat exchange tube, the inner diameter of the yielding hole is larger than the outer diameter of the heat exchange tube, a supporting platform is further arranged in the yielding hole, and the plurality of yielding holes in the tube plate II are respectively provided with an openable sealing structure.
Description
Technical Field
The invention relates to the field of heat exchange equipment, in particular to a heat exchanger.
Background
The heat exchanger is the equipment that uses in the phosphorus pentachloride in-process of production, a heat transfer between the material is realized to two kinds or more than two kinds of fluid for at different temperatures, after the live time has been long, the outer wall and the inner wall of heat exchange tube all can produce the accumulation dirt, influence heat exchange efficiency, consequently, need regularly clear up the heat exchanger, the inner wall of heat exchange tube can effectively be washd through the cooperation of high-pressure squirt and cleaner, nevertheless because current heat exchanger's heat exchange tube is fixed the setting, consequently, can't effectively wash the outer wall of heat exchange tube, consequently, need design a heat exchanger and solve this problem.
Disclosure of Invention
The present invention provides a heat exchanger that solves the problems identified in the background.
A heat exchanger comprises a shell, a tube box, an outer end cover, a floating end cover, a tube plate I, a tube plate II, a baffle plate, a plurality of heat exchange tubes, a plurality of partition plates and a hook ring, wherein a plurality of sleeves which are in one-to-one correspondence with the plurality of heat exchange tubes are arranged on the tube plate I, and through holes are formed in the positions, corresponding to the sleeves, on the tube plate I;
the tube plate II and the baffle plates are respectively provided with a yielding hole for yielding the heat exchange tube, the inner diameter of the yielding hole is larger than the outer diameter of the heat exchange tube, a support table is further arranged in the yielding hole, and the central line of the heat exchange tube is superposed with the central line of the yielding hole under the action of the support table;
and a plurality of yielding holes in the second tube plate are provided with openable sealing structures.
Preferably, a plurality of one end that the heat exchange tube stretched into in the floating head lid all is connected with the extension rod, the interval of extension rod and floating head lid inner wall is less than telescopic length.
Preferably, the cavity for accommodating the sealing structure is formed in the yielding hole, the sealing ring structure comprises two semi-annular sealing pieces and spring assemblies respectively connected with the two sealing pieces, and the two sealing pieces can be respectively positioned at two sides of the yielding hole under the action of the two spring assemblies.
Preferably, an annular groove is formed in the second tube plate, two sealing elements of the same sealing structure are respectively connected with a connecting rod, one end of each connecting rod is provided with a guide inclined plane, and the end of each connecting rod is located in the annular groove;
the shell is internally provided with a connecting ring, the connecting ring is provided with a hole matched with the flange bolt, and the inner side of the connecting ring is connected with a convex ring;
the connecting ring is fixed on the flange of the floating head cover and the hook ring, and the convex ring is abutted against the guide inclined plane of the connecting rod to enable the connecting rod to move in the length direction of the connecting rod, so that the two sealing pieces are in contact with the heat exchange tube.
Preferably, the length of the support table is smaller than that of the abdicating hole, and the support table is close to one side, facing the floating head cover, of the tube plate II;
and the sealing element is provided with a yielding groove for yielding the supporting table.
Preferably, the aperture of the abdicating hole on the tube plate II is larger than that of the abdicating hole on the baffle plate.
Compared with the prior art, the invention has the beneficial effects that: the sealing structure, the abdicating hole and the support table 12 are matched, so that the dirt scraping amount of the tube plate II or the baffle plate into the heat exchanger can be reduced, the heat exchange tube can be pulled out independently while the sealing effect is good, the transportation is more convenient, and the cleaning work of workers is more convenient.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic structural view of the floating head cover, the connecting ring and the hook ring connection part of the present invention;
FIG. 4 is a schematic side view of a second tube sheet according to the present invention;
FIG. 5 is a schematic side view of the second tube sheet with the connection ring removed according to the present invention;
FIG. 6 is an enlarged view of a portion of the invention at B of FIG. 5;
FIG. 7 is a schematic view of the seal and support table of the present invention;
fig. 8 is a partial structural view of the connecting rod of the present invention.
Description of reference numerals:
the heat exchange tube comprises a shell 1, a tube box 2, an outer head cover 3, a floating head cover 4, a tube plate I5, a tube plate II 6, a baffle plate 7, a heat exchange tube 8, a partition plate 9, a hook ring 10, a sleeve 11, a support table 12, an extension rod 13, a sealing element 21, a spring assembly 22, an annular groove 23, a connecting rod 24, a connecting ring 25, a convex ring 26, a guide inclined plane 27 and a abdicating groove 28.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited to the embodiment.
As shown in fig. 1 to 8, a heat exchanger provided in an embodiment of the present invention includes a shell 1, a tube box 2, an outer head cover 3, a floating head cover 4, a tube plate one 5, a tube plate two 6, a baffle plate 7, a plurality of heat exchange tubes 8, a plurality of partition plates 9, and hook rings 10, where the baffle plate 7 and the tube plate one 5 are both fixedly disposed in the shell 1, and a part of connection relations among the above technical features is a conventional scheme, such as flange connection, and a sealing ring used for flange connection, so that details are not repeated, and in order to solve a problem that a heat exchange tube 8 in the prior art cannot be removed, further, a plurality of sleeves 11 corresponding to a plurality of heat exchange tubes 8 are disposed on the tube plate one 5, through holes are disposed on the tube plate one 5, and positions corresponding to the sleeves 11 are disposed on the tube plate one 5, and abdicating holes for abdicating the heat exchange tubes 8 are disposed on the tube plate two 6 and the plurality of baffle plates 7, a support table 12 is further disposed in the positioning holes, and the support table 12 is used for coinciding a center line of the heat exchange tubes 8 with center line of the abdications of the heat exchange tubes 8 with center line of the sleeve 11, so as to facilitate inserting the tubes 8 into the sleeves 11;
the floating head type heat exchanger in the prior art can integrally draw out a tube bundle in the heat exchanger and then wash the tube bundle after the tube bundle is integrally drawn out, the tube bundle is difficult to transport due to overlarge integral volume, and washing personnel also can hardly wash the heat exchange tube 8 positioned in the heat exchanger during washing, but if the heat exchange tube 8 is only directly set into a structure capable of being independently disassembled, when the heat exchange tube 8 is drawn out, the baffles 7, the first tube plate 5 and the second tube plate 6 are provided with the abdicating holes to scrape off dirt on the surface of the heat exchange tube 8, so that most of the dirt is remained in the heat exchanger, and the interior of the heat exchanger needs to be cleaned again, therefore, the inner diameters of the abdicating holes in the second tube plate 6 and the baffles 7 are larger than the outer diameter of the heat exchange tube 8, so that most of the dirt can be prevented from being scraped off, and although a small part of the dirt is scraped off by the support table 12, the influence is not large;
therefore, the abdicating holes in the tube plate II 6 need to be sealed, and the sealing structures which can be opened and closed are arranged in the abdicating holes in the tube plate II 6, so that the sealing structures are opened when the cleaning is needed and closed when the cleaning is needed; because the open-close sealing structure needs to be accommodated in the abdicating hole of the tube plate two 6, and the baffle plate 7 does not need the space, the aperture of the abdicating hole on the tube plate two 6 is larger than that of the abdicating hole on the baffle plate 7;
when the fluid flows through the yielding holes on the baffle plate 7, the fluid can interfere with the main flow direction of the fluid to generate turbulent flow, so that the heat exchange rate is improved;
when the shell and the heat exchange tubes 8 are subjected to different thermal expansions due to different temperatures, in order to eliminate thermal stress, furthermore, one ends of the plurality of heat exchange tubes 8 extending into the floating head cover 4 are connected with extension rods 13, and the distance between each extension rod 13 and the inner wall of the floating head cover 4 is smaller than the length of the sleeve 11, so that the heat exchange tubes 8 can have a movable space in the tube length direction, and the thermal stress is eliminated;
a cavity for accommodating the sealing structure is formed in the abdicating hole, the sealing ring structure comprises two semi-annular sealing pieces 21 and spring assemblies 22 respectively connected with the two sealing pieces 21, as shown in fig. 5 and 6, when the connecting ring 25 is not installed, the two sealing pieces 21 can be respectively positioned at two sides of the abdicating hole under the action of the two spring assemblies 22;
a connecting ring 25 is further arranged in the shell 1, a hole matched with the flange bolt is formed in the connecting ring 25, and a convex ring 26 is connected to the inner side of the connecting ring 25;
the tube plate two 6 is provided with an annular groove 23, the two sealing elements 21 of the same sealing structure are respectively connected with connecting rods 24, one end of each connecting rod 24 is provided with a guide inclined surface 27, and the end is positioned in the annular groove 23, further, as shown in fig. 4, the abdicating holes on the tube plate two 6 are arranged in four rows, so that the four sealing elements 21 on the same side of each row are connected with one connecting rod 24, the four sealing elements 21 on the same side of the other row are connected with the other connecting rod 24, the positions of the two connecting rods 24 are shown in fig. 5, and after the connecting ring 25 is installed, the moving directions of the two connecting rods 24 of the same row of sealing structure are opposite;
in the process that the connecting ring 25 is fixed between the flange of the floating head cover 4 and the hook ring 10, the convex ring 26 is abutted against the guide inclined surface 27 of the connecting rod 24, so that the connecting rod 24 moves in the length direction thereof, and both the sealing pieces 21 are in contact with the heat exchange tube 8;
in order to enhance the sealing effect of the abdicating hole on the tube plate II 6, the length of the support table 12 is smaller than that of the abdicating hole, and the support table 12 is close to one side of the tube plate II 6 facing the floating head cover 4; the sealing element 21 is provided with an abdicating groove 28 for abdicating the support table 12, preferably, the length of the support table 12 on the tube plate two 6 is half of the length of the abdicating hole;
before cleaning the outer wall of the heat exchange tube 8, the heat exchange tube 8 needs to be drawn out, and the drawing steps are as follows: firstly, the outer head cover 3 and the floating head cover 4 are taken down, then the connecting ring 25 is taken down, after the convex ring 26 is taken out of the annular groove 23, the connecting rod 24 and the plurality of sealing pieces 21 connected with the connecting rod 24 reset under the action of the spring assembly 22, the two sealing pieces 21 of the same sealing structure move back to back, namely are separated from the heat exchange tube 8, at the moment, the heat exchange tube 8 is pulled out through pulling equipment or manual operation (specifically, the selection can be carried out according to the size of the heat exchanger equipment), and then the cleaning work can be carried out.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (6)
1. A heat exchanger comprises a shell, a tube box, an outer end cover, a floating end cover, a tube plate I, a tube plate II, a baffle plate, a plurality of heat exchange tubes, a plurality of partition plates and a hook ring, and is characterized in that the tube plate I is provided with a plurality of sleeves which are in one-to-one correspondence with the plurality of heat exchange tubes, and the tube plate I is provided with through holes corresponding to the sleeves;
the tube plate II and the baffle plates are respectively provided with a yielding hole for yielding the heat exchange tube, the inner diameter of the yielding hole is larger than the outer diameter of the heat exchange tube, a support table is further arranged in the yielding hole, and the central line of the heat exchange tube is superposed with the central line of the yielding hole under the action of the support table;
and a plurality of yielding holes on the second tube plate are provided with openable sealing structures.
2. The heat exchanger as claimed in claim 1, wherein an extension rod is connected to one end of each of the plurality of heat exchange tubes extending into the floating head cover, and the distance between the extension rod and the inner wall of the floating head cover is smaller than the length of the sleeve.
3. The heat exchanger of claim 1, wherein the offset hole defines a cavity for receiving the sealing structure, the sealing structure includes two semi-annular sealing members and two spring assemblies respectively connected to the two sealing members, and the two sealing members are respectively located at two sides of the offset hole under the action of the two spring assemblies.
4. The heat exchanger of claim 3, wherein the second tube plate is provided with an annular groove, the two sealing members of the same sealing structure are respectively connected with a connecting rod, one end of the connecting rod is provided with a guide inclined plane and the end is positioned in the annular groove;
the shell is also internally provided with a connecting ring, the connecting ring is provided with a hole matched with the flange bolt, and the inner side of the connecting ring is connected with a convex ring;
the connecting ring is fixed on the flange of the floating head cover and the hook ring, and the convex ring is abutted against the guide inclined plane of the connecting rod to enable the connecting rod to move in the length direction of the connecting rod, so that the two sealing pieces are in contact with the heat exchange tube.
5. The heat exchanger as claimed in claim 3, wherein the length of the support table is smaller than the length of the relief hole and the support table is close to the side of the tube plate II facing the floating head cover;
and the sealing element is provided with a yielding groove for yielding the supporting table.
6. The heat exchanger of claim 1, wherein the diameter of the relief holes in the second tube sheet is greater than the diameter of the relief holes in the baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211179284.6A CN115420124B (en) | 2022-09-27 | 2022-09-27 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211179284.6A CN115420124B (en) | 2022-09-27 | 2022-09-27 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115420124A true CN115420124A (en) | 2022-12-02 |
| CN115420124B CN115420124B (en) | 2023-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211179284.6A Active CN115420124B (en) | 2022-09-27 | 2022-09-27 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115420124B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993004333A1 (en) * | 1991-08-12 | 1993-03-04 | Henrik Lund | A shell and tube heat exchanger and a process for the manufacture of perforated manifold end plates for such heat exchanger |
| DE29614878U1 (en) * | 1995-08-28 | 1996-10-10 | Vaillant Joh Gmbh & Co | Heat exchanger |
| JPH10232095A (en) * | 1997-02-20 | 1998-09-02 | Hitachi Ltd | Heat exchanger and method for restoring heat transfer pipe supporting function of the same |
| US20150151273A1 (en) * | 2012-06-06 | 2015-06-04 | Casale Sa | Pressure vessel with replaceable tubes |
| CN105202951A (en) * | 2015-10-12 | 2015-12-30 | 无锡市惠山合力传热设备厂 | Floating head type heat exchanger device |
| JP2016217654A (en) * | 2015-05-22 | 2016-12-22 | 三菱重工環境・化学エンジニアリング株式会社 | Heat exchanger |
| CN107747881A (en) * | 2017-10-30 | 2018-03-02 | 佛山科学技术学院 | The shell-and-tube heat exchanger of square pore full-circle spray pattern supporting plate substitution segmental baffle |
| CN210070674U (en) * | 2019-05-28 | 2020-02-14 | 南通罗兰泵阀有限公司 | Graphite tube heat exchanger with tube plate bonded with anti-scouring carbon fiber plate |
| CN210773579U (en) * | 2019-09-03 | 2020-06-16 | 江苏百瑞特新材料有限公司 | Heat exchanger for producing polyester type polyurethane adhesive |
| CN214371902U (en) * | 2020-12-01 | 2021-10-08 | 盘锦中天容器制造安装有限公司 | Tube nest type cooler |
| CN216347956U (en) * | 2021-07-05 | 2022-04-19 | 绍兴银球压力容器制造有限公司 | Tubular evaporative cooler |
| CN217442331U (en) * | 2022-04-15 | 2022-09-16 | 山东普利龙压力容器有限公司 | Tube-shell type steam-driven heat exchanger and steam-driven heat exchanger unit |
-
2022
- 2022-09-27 CN CN202211179284.6A patent/CN115420124B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993004333A1 (en) * | 1991-08-12 | 1993-03-04 | Henrik Lund | A shell and tube heat exchanger and a process for the manufacture of perforated manifold end plates for such heat exchanger |
| DE29614878U1 (en) * | 1995-08-28 | 1996-10-10 | Vaillant Joh Gmbh & Co | Heat exchanger |
| JPH10232095A (en) * | 1997-02-20 | 1998-09-02 | Hitachi Ltd | Heat exchanger and method for restoring heat transfer pipe supporting function of the same |
| US20150151273A1 (en) * | 2012-06-06 | 2015-06-04 | Casale Sa | Pressure vessel with replaceable tubes |
| JP2016217654A (en) * | 2015-05-22 | 2016-12-22 | 三菱重工環境・化学エンジニアリング株式会社 | Heat exchanger |
| CN105202951A (en) * | 2015-10-12 | 2015-12-30 | 无锡市惠山合力传热设备厂 | Floating head type heat exchanger device |
| CN107747881A (en) * | 2017-10-30 | 2018-03-02 | 佛山科学技术学院 | The shell-and-tube heat exchanger of square pore full-circle spray pattern supporting plate substitution segmental baffle |
| CN210070674U (en) * | 2019-05-28 | 2020-02-14 | 南通罗兰泵阀有限公司 | Graphite tube heat exchanger with tube plate bonded with anti-scouring carbon fiber plate |
| CN210773579U (en) * | 2019-09-03 | 2020-06-16 | 江苏百瑞特新材料有限公司 | Heat exchanger for producing polyester type polyurethane adhesive |
| CN214371902U (en) * | 2020-12-01 | 2021-10-08 | 盘锦中天容器制造安装有限公司 | Tube nest type cooler |
| CN216347956U (en) * | 2021-07-05 | 2022-04-19 | 绍兴银球压力容器制造有限公司 | Tubular evaporative cooler |
| CN217442331U (en) * | 2022-04-15 | 2022-09-16 | 山东普利龙压力容器有限公司 | Tube-shell type steam-driven heat exchanger and steam-driven heat exchanger unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115420124B (en) | 2023-04-28 |
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