CN112284164B - Large baffle rod type heat exchanger for petrochemical industry and use method thereof - Google Patents
Large baffle rod type heat exchanger for petrochemical industry and use method thereof Download PDFInfo
- Publication number
- CN112284164B CN112284164B CN202011432553.6A CN202011432553A CN112284164B CN 112284164 B CN112284164 B CN 112284164B CN 202011432553 A CN202011432553 A CN 202011432553A CN 112284164 B CN112284164 B CN 112284164B
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- Prior art keywords
- flange
- heat exchange
- tubular shell
- baffle rod
- fixedly connected
- 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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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000010410 layer Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 6
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- 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
- F28F9/10—Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明涉及换热技术领域，且公开了一种石油化工用大型折流杆式换热器及其使用方法，包括管状壳体，所述管状壳体一端固定安装有第一法兰，所述第一法兰左侧贴设有密封圈，所述管状壳体内部开设有滑槽，所述第一法兰左侧设有第二法兰，所述第二法兰右侧设有环形槽，所述密封圈卡设在环形槽内，且第二法兰通过螺栓与第一法兰贴合设置，所述第二法兰右侧固定安装有滑杆，所述滑杆与滑槽滑动连接。本发明换热管与第二法兰固定连接，能够将换热管取出，便于清理换热管上和管状壳体内部的水垢；通过限流管，当待换热液体的流速增大时，会使圆球压缩弹簧，将通口堵住，避免流速过大，使换热管的流速过大，使换热效果不佳。
The present invention relates to the field of heat exchange technology, and discloses a large-scale baffle rod heat exchanger for petrochemical industry and a method for using the same, comprising a tubular shell, a first flange fixedly installed at one end of the tubular shell, a sealing ring attached to the left side of the first flange, a slide groove opened inside the tubular shell, a second flange provided on the left side of the first flange, an annular groove provided on the right side of the second flange, the sealing ring clamped in the annular groove, and the second flange is fitted with the first flange by bolts, a sliding rod fixedly installed on the right side of the second flange, and the sliding rod is slidably connected to the slide groove. The heat exchange tube of the present invention is fixedly connected to the second flange, and the heat exchange tube can be taken out, which is convenient for cleaning the scale on the heat exchange tube and inside the tubular shell; through the flow limiting tube, when the flow rate of the liquid to be heat exchanged increases, the ball will compress the spring to block the opening to avoid excessive flow rate, which will cause the flow rate of the heat exchange tube to be too high and the heat exchange effect to be poor.
Description
Technical Field
The invention relates to the technical field of heat exchange, in particular to a large-scale baffle rod type heat exchanger for petrochemical industry and a use method thereof.
Background
The heat exchanger is an important unit device in industries such as oil refining, chemical industry, environmental protection, energy, electric power and the like, and particularly the shell-and-tube heat exchanger has wide application. The shell-and-tube heat exchanger has the working principle that cold and hot fluids, one of which flows in a tube, and the other fluid flows in a shell side, and the heat exchange process is completed between the cold and hot fluids through a heat exchange tube bundle. For the purpose of supporting heat exchange tube bundles and improving heat exchange, baffles are generally arranged in a shell to change the flow direction of the shell-side fluid and increase the flow disturbance degree of the fluid.
However, the existing baffle rod type heat exchanger is inconvenient to detach and clean the internal heat exchange tube, so that scale is accumulated, and the heat exchange efficiency is affected.
Disclosure of Invention
The invention aims to provide a large baffle rod type heat exchanger for petrochemical industry and a use method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a large-scale baffling rod-type heat exchanger for petrochemical, includes the tubular casing, tubular casing one end fixed mounting has first flange, first flange left side paste is equipped with the sealing washer, the spout has been seted up to tubular casing inside, first flange left side is equipped with the second flange, the second flange right side is equipped with the ring channel, the sealing washer card is established in the ring channel, and the second flange passes through bolt and first flange laminating setting, second flange right side fixed mounting has the slide bar, slide bar and spout sliding connection, second flange right side fixed connection has many heat exchange tubes, heat exchange tube right-hand member fixed connection has the fixed disk, second flange left side fixed mounting has the split disk, second flange left side fixed mounting has the upper cover, inside and the split disk fixed connection of upper cover, both ends are fixedly connected with second outlet pipe and second inlet tube respectively, second inlet tube lower extreme fixedly connected with current-limiting tube, the current-limiting tube lower extreme sets up the through-mouth, through-mouth and second inlet tube right side fixed mounting have the slide bar, the fixed ball through-mouth has, the ball through-mouth is all connected with the ball through-mouth, the horizontal cross bar is seted up with the ball through-mouth, both sides fixed connection.
As the preferable scheme of the last step, the upper end and the lower end of the tubular shell are respectively and fixedly provided with a first water outlet pipe and a first water inlet pipe, and the first water outlet pipe and the first water inlet pipe are communicated with the inside of the tubular shell.
As a preferable scheme of the last step, an insulation layer is stuck in the inner interlayer of the tubular shell, the thickness of the insulation layer is three centimeters, and the insulation layer is made of aluminum silicate.
As the preferable scheme of the last step, the number of the sliding rods is four, the four sliding rods are positioned in the four directions of the heat exchange tubes, a baffle ring is fixedly arranged between the four heat exchange tubes, a baffle rod is fixedly arranged in the baffle ring, and the heat exchange tubes are kept in a horizontal stable state through clamping of the baffle rod.
As the preferable scheme of the last step, the fixed disk at the right end of the heat exchange tube is in a hollow state, the heat exchange tube is communicated with the inside of the fixed disk, and the heat exchange tube is communicated with the inside of the upper cover at the left end.
As the preferable scheme of the last step, the ball is attached to the inner wall of the through hole, and the upper end of the through hole is conical.
A method for using a large baffle rod type heat exchanger for petrochemical engineering comprises the following steps of 1) enabling hot water to enter from a first water inlet pipe and flow out from a first water outlet pipe, 2) adding liquid needing heat exchange from a second water inlet pipe, enabling the liquid to enter a heat exchange pipe at the lower part after passing through the lower part of an upper cover, enabling the liquid to enter a heat exchange pipe at the upper part and flow out from the second water outlet pipe.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the second flange and the first flange can be opened through the bolts, and the heat exchange tube is fixedly connected with the second flange, so that the heat exchange tube can be taken out, and scale on the heat exchange tube and in the tubular shell can be cleaned conveniently.
(2) According to the invention, when the liquid to be heat-exchanged passes through the flow limiting pipe, the pressure is applied to the ball, and meanwhile, the liquid to be heat-exchanged flows into the second water inlet pipe through the groove, when the flow rate of the liquid to be heat-exchanged is increased, the ball compresses the spring, the through hole is blocked, the overlarge flow rate is avoided, the flow rate of the heat-exchanging pipe is overlarge, and the heat-exchanging effect is poor.
(3) According to the invention, the heat exchange tube is divided into the upper part and the lower part, so that the heat exchange time is increased, and the heat exchange efficiency can be improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of a partial explosion structure of the present invention;
FIG. 3 is a schematic view of a partially exploded structure in another direction according to the present invention;
FIG. 4 is a schematic view of a tubular housing according to the present invention;
fig. 5 is an enlarged view of a portion of fig. 1a according to the present invention.
In the figure, 1, a tubular shell, 2, a first water outlet pipe, 3, a first water inlet pipe, 4, a first flange, 5, a second flange, 6, a second water outlet pipe, 7, an upper cover, 8, a second water inlet pipe, 9, a dividing disc, 10, a sliding rod, 11, a heat exchange pipe, 12, a fixed disc, 13, a baffle rod, 14, an annular groove, 15, an insulating layer, 16, a sealing ring, 17, a sliding groove, 18, a cross rod, 19, a spring, 20, a groove, 21, a sphere, 22, a through hole, 23, a flow limiting pipe, 24 and a baffle ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: A large baffle rod type heat exchanger for petrochemical industry and a use method thereof, comprises a tubular shell 1, a first water outlet pipe 2 and a first water inlet pipe 3 are respectively fixedly arranged at the upper end and the lower end of the tubular shell 1, the first water outlet pipe 2 and the first water inlet pipe 3 are communicated with the inside of the tubular shell 1, an insulating layer 15 is stuck in an interlayer inside the tubular shell 1, the thickness of the insulating layer 15 is three centimeters, the insulating layer 15 is made of aluminum silicate, the heat dissipation can be effectively prevented through the insulating layer 15, the waste of heat energy is prevented, the heat exchange efficiency is reduced, a first flange 4 is fixedly arranged at one end of the tubular shell 1, a sealing ring 16 is stuck at the left side of the first flange 4, a chute 17 is formed in the inside of the tubular shell 1, a second flange 5 is arranged at the left side of the first flange 4, an annular groove 14 is formed at the right side of the second flange 5, the sealing ring 16 is blocked in the annular groove 14, the second flange 5 is attached to the first flange 4 through bolts, the right side of the second flange 5 is fixedly provided with slide bars 10, the slide bars 10 are in sliding connection with slide grooves 17, the number of the slide bars 10 is four, the four slide bars 10 are positioned in the four directions of the upper, lower, front and rear of the heat exchange tubes 11, a baffle ring 24 is fixedly arranged between the four heat exchange tubes 11, a baffle rod 13 is fixedly arranged in the baffle ring 24, the heat exchange tubes 11 keep a horizontal stable state through clamping of the baffle rod 13, when liquid in the heat exchange tubes 11 flows through the baffle rod 13, the heat exchange tubes 11 are prevented from bending due to gravity and the flow of water in the tubular shell 1, the baffle rod 13 keeps stable, meanwhile, the water in the tubular shell 1 is disturbed, the heat exchange effect is better, the right side of the second flange 5 is fixedly connected with a plurality of heat exchange tubes 11, and the right end of the heat exchange tubes 11 is fixedly connected with a fixed disc 12, the fixed disk 12 at the right end of the heat exchange tube 11 is in a hollow state, the heat exchange tube 11 is communicated with the inside of the fixed disk 12, the heat exchange tube 11 is communicated with the inside of the upper cover 7 at the left end, the heat exchange tube 11 is divided into an upper part and a lower part through the dividing disk 9, the lower part heat exchange tube 11 is close to the upper part heat exchange tube 11, the liquid of the lower part heat exchange tube 11 flows into the fixed disk 12 and then flows into the upper part heat exchange tube 11, the heat exchange effect is better through the lower part heat exchange tube 11 and the upper part heat exchange tube 11, the second flange 5 and the first flange 4 can be opened through bolts, the heat exchange tube 11 is fixedly connected with the second flange 5, the heat exchange tube 11 can be taken out, scale on the heat exchange tube 11 and in the tubular shell 1 is conveniently cleaned, the dividing disk 9 is fixedly arranged at the left side of the second flange 5, the upper cover 7 is fixedly arranged at the left side of the second flange 5, the inside of the upper cover 7 is fixedly connected with the dividing disk 9, the upper end and the lower end of the upper cover 7 are fixedly connected with a second water outlet pipe 6 and a second water inlet pipe 8 respectively, the lower end of the second water inlet pipe 8 is fixedly connected with a current limiting pipe 23, the lower end of the current limiting pipe 23 is provided with a through hole 22, the through hole 22 is communicated with the second water inlet pipe 8, a round ball 21 is arranged in a sliding manner in the through hole 22, the round ball 21 is attached to the inner wall of the through hole 22, the upper end of the through hole 22 is conical, when the flow rate of heat exchange liquid is increased, the round ball 21 compresses a spring 19, the through hole 22 is blocked, the flow rate is prevented from being too high, the flow rate of the heat exchange pipe 11 is too high, the heat exchange effect is poor, the upper end of the round ball 21 is fixedly connected with the spring 19, the upper end of the through hole 22 is horizontally and fixedly provided with a cross rod 18, the lower end of the cross rod 18 is fixedly connected with the spring 19, both sides of the through hole 22 are provided with grooves 20, when the heat exchange liquid passes through the current limiting pipe 23, the round ball 21 is pressed by the pressure, meanwhile, the liquid to be subjected to heat exchange flows into the second water inlet pipe 8 through the groove 20, when the flow rate of the liquid to be subjected to heat exchange is increased, the ball 21 compresses the spring 19, the through hole 22 is blocked, the overlarge flow rate is avoided, the overlarge flow rate of the heat exchange pipe 11 is avoided, and the heat exchange effect is poor.
During the use, get into through having the hot water through first inlet tube 3, flow from first outlet pipe 2, secondly, the liquid that needs the heat transfer gets into from second inlet tube 8, secondly, inside through upper cover 7, flow into heat exchange tube 11, the liquid after the heat transfer is accomplished at last flows back into upper cover 7 inside, flow out from second outlet pipe 6, upper cover 7 separates two parts with the liquid after the heat transfer and the liquid that does not exchange heat through the division board simultaneously, be convenient for exchange heat, can open through the bolt through second flange 5 and first flange 4, heat exchange tube 11 and second flange 5 fixed connection simultaneously, can take out heat exchange tube 11, be convenient for clear up the incrustation scale on heat exchange tube 11 and the inside of tubular housing 1, finally, through restriction pipe 23, when making the liquid that waits to exchange heat pass through restriction pipe 23, can be to a pressure to ball 21, simultaneously, liquid that waits to exchange heat flows into second inlet tube 8 through recess 20, when the velocity of flow of liquid that waits to exchange heat increases, can make ball 21 compress spring 19, avoid velocity of flow 22 to be too big, velocity of flow, make heat exchange tube 11 is too big, make heat exchange tube 11 effect not good.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A large baffle rod type heat exchanger for petrochemical industry comprises a tubular shell (1), and is characterized in that one end of the tubular shell (1) is fixedly provided with a first flange (4), the left side of the first flange (4) is stuck with a sealing ring (16), the inside of the tubular shell (1) is provided with a sliding groove (17), the left side of the first flange (4) is provided with a second flange (5), the right side of the second flange (5) is provided with an annular groove (14), the sealing ring (16) is clamped in the annular groove (14), the second flange (5) is stuck with the first flange (4) through bolts, the right side of the second flange (5) is fixedly provided with a sliding rod (10), the sliding rod (10) is in sliding connection with the sliding groove (17), the right side of the second flange (5) is fixedly connected with a plurality of heat exchange tubes (11), the right side of the heat exchange tubes (11) is fixedly connected with a fixing disc (12), the left side of the second flange (5) is fixedly provided with a dividing disc (9), the left side of the second flange (5) is fixedly provided with an annular groove (14), the upper side of the second flange (7) is fixedly connected with the upper water inlet pipe (7) and the two ends of the second flange (7) are fixedly connected with the upper water inlet pipe (7), the heat-exchanging device is characterized in that a flow-limiting pipe (23) is fixedly connected to the lower end of the second water inlet pipe (8), a through hole (22) is formed in the lower end of the flow-limiting pipe (23), the through hole (22) is communicated with the second water inlet pipe (8), a round ball (21) is arranged in the through hole (22) in a sliding mode, a spring (19) is fixedly connected to the upper end of the round ball (21), a cross rod (18) is horizontally and fixedly arranged at the upper end of the through hole (22), grooves (20) are formed in the lower end of the cross rod (18) and fixedly connected with the spring (19), a first water outlet pipe (2) and a first water inlet pipe (3) are respectively and fixedly arranged at the upper end and the lower end of the tubular shell (1), four baffle rods (24) are fixedly arranged between the four heat exchange tubes (11) in the upper, lower end and front of the four heat exchange tubes (11), and a baffle rod (13) is fixedly arranged in the baffle rod (13), and the baffle rod (13) is fixedly arranged in the baffle rod.
2. The large baffle rod type heat exchanger for petrochemical industry according to claim 1, wherein an insulation layer (15) is adhered to the inner interlayer of the tubular shell (1), the thickness of the insulation layer (15) is three centimeters, and the insulation layer (15) is made of aluminum silicate.
3. The large baffle rod type heat exchanger for petrochemical engineering according to claim 1, wherein a fixed disc (12) at the right end of the heat exchange tube (11) is in a hollow state, the heat exchange tube (11) is communicated with the inside of the fixed disc (12), and the heat exchange tube (11) is communicated with the inside of the left end upper cover (7).
4. The large baffle rod type heat exchanger for petrochemical industry according to claim 1, wherein the round balls (21) are attached to the inner wall of the through hole (22), and the upper end of the through hole (22) is conical.
5. The method for using the large baffle rod type heat exchanger for petrochemical industry according to any one of claims 1 to 4, which is characterized by comprising the following steps of 1) enabling hot water to enter from a first water inlet pipe (3) and flow out from a first water outlet pipe (2), 2) adding liquid to be subjected to heat exchange from a second water inlet pipe (8), enabling the liquid to enter a heat exchange pipe (11) at the lower part after passing through the lower part of an upper cover (7) and then enter an upper part heat exchange pipe (11) and flow out after passing through a second water outlet pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432553.6A CN112284164B (en) | 2020-12-10 | 2020-12-10 | Large baffle rod type heat exchanger for petrochemical industry and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432553.6A CN112284164B (en) | 2020-12-10 | 2020-12-10 | Large baffle rod type heat exchanger for petrochemical industry and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112284164A CN112284164A (en) | 2021-01-29 |
| CN112284164B true CN112284164B (en) | 2025-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011432553.6A Active CN112284164B (en) | 2020-12-10 | 2020-12-10 | Large baffle rod type heat exchanger for petrochemical industry and use method thereof |
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| CN (1) | CN112284164B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115406300A (en) * | 2022-08-31 | 2022-11-29 | 江苏省特种设备安全监督检验研究院 | Intelligent heat exchanger and automatic online cleaning method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213748022U (en) * | 2020-12-10 | 2021-07-20 | 江苏金诺化工装备有限公司 | Large-scale baffling rod-type heat exchanger for petrochemical |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180687B (en) * | 2015-10-16 | 2017-07-07 | 华中科技大学 | A kind of double-shell side pipe shell-type baffle-rod heat exchanger |
| CN107664444B (en) * | 2016-07-28 | 2021-04-02 | 恒丰工程（香港）有限公司 | Side-process plate and shell heat exchanger plates and multi-process removable plate and shell heat exchangers |
| CN107462092A (en) * | 2017-09-11 | 2017-12-12 | 芜湖凡达机械科技有限公司 | A kind of tubular heat exchanger |
| CN211601656U (en) * | 2019-10-22 | 2020-09-29 | 江苏琥啸换热设备有限公司 | Shell-and-tube heat exchanger with buffer frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213748022U (en) * | 2020-12-10 | 2021-07-20 | 江苏金诺化工装备有限公司 | Large-scale baffling rod-type heat exchanger for petrochemical |
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