CN216245723U

CN216245723U - Chemical industry is with high-efficient shell and tube heat exchanger

Info

Publication number: CN216245723U
Application number: CN202122906263.7U
Authority: CN
Inventors: 郭磊
Original assignee: Wuxi Huabang Intelligent Equipment Co ltd
Current assignee: Wuxi Huabang Intelligent Equipment Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-08
Anticipated expiration: 2031-11-24

Abstract

The application relates to the technical field of heat exchange equipment, in particular to a high-efficiency tubular heat exchanger for chemical engineering. A high-efficiency tube nest heat exchanger for chemical engineering comprises a shell, a first seal head and a second seal head; a plurality of heat exchange pipelines are arranged in the shell, and each heat exchange pipeline is arranged in parallel along the length direction of the shell; the shell is provided with baffle plates along the length direction in a staggered manner, the heat exchange pipeline penetrates through the baffle plates, and the heat exchange device is characterized in that: the first end socket and the second end socket are close to one side of the shell body and are respectively provided with a heat conduction sealing plate, the end portion of the heat exchange pipeline is communicated with the heat conduction sealing plates, a range partition plate is fixedly connected in the first end socket and horizontally arranged, and the second end socket and the heat conduction sealing plates form a liquid collection space. The heat exchanger has the effects of high-efficiency heat transfer and long service life.

Description

Chemical industry is with high-efficient shell and tube heat exchanger

Technical Field

The application relates to the technical field of heat exchange equipment, in particular to a high-efficiency tubular heat exchanger for chemical engineering.

Background

The heat exchanger is a device which can realize heat transfer between two fluids with different temperatures, and heat is transferred from high-temperature fluid to low-temperature fluid so as to meet the requirement of heat transfer in chemical production.

Chinese patent publication No. CN206037775U discloses a tube heat exchanger, which includes a tube box and end sockets connected to two ends of the tube box, wherein a plurality of tube pass connection tubes are arranged in the tube box, the end socket on one side of the tube box is provided with a cold fluid outlet, the end socket on the other side of the tube box is provided with a cold fluid inlet, and the tube box is provided with a fluid inlet and a fluid outlet; and the cold fluid is used as a cooling medium, enters the tube side connecting tube from the cold fluid inlet, is discharged from the cold fluid outlet and cools the fluid.

In carrying out the present application, the applicant has found that at least the following problems exist in the above-described technology: the flow of the cold fluid is only one tube box, the cold fluid flows between the tubes quickly, the residence time is short, and the heat exchange efficiency is low.

Disclosure of Invention

In order to improve shell and tube heat exchanger's heat exchange efficiency, this application provides a high-efficient shell and tube heat exchanger is used in chemical industry.

The application provides a pair of high-efficient shell and tube heat exchanger is used to chemical industry adopts following technical scheme:

a high-efficiency tubular heat exchanger for chemical engineering comprises a shell, a first end socket connected with one end of the shell, and a second end socket connected with the other end of the shell; a plurality of heat exchange pipelines are arranged in the shell, and each heat exchange pipeline is arranged along the length direction of the shell and is parallel to each other; baffle plates are arranged on the shell in a staggered mode along the length direction of the shell, the heat exchange pipelines penetrate through the baffle plates, a first fluid inflow pipe is arranged on one side of the shell, and a first fluid outflow pipe is arranged on the other side of the shell; a second fluid inflow pipe is arranged above the first seal head, and a second fluid outflow pipe is arranged below the first seal head; the first end socket and the second end socket are close to one side of the shell body and are respectively provided with a heat conduction sealing plate, the end portion of the heat exchange pipeline is communicated with the heat conduction sealing plates, a range partition plate is fixedly connected in the first end socket and horizontally arranged, and the second end socket and the heat conduction sealing plates form a liquid collection space.

By adopting the technical scheme, the cooling liquid flows into the first end socket from the second fluid inlet, the split-range partition plate divides the first end socket into two chambers, the first end socket, the heat exchange pipeline and the second end socket enable the cooling liquid to flow in a U shape in the heat exchanger, the flow of the cooling liquid is lengthened, and the heat exchange efficiency is high; meanwhile, the cooling liquid in the liquid collecting space can exchange heat with fluid in the shell through the heat conduction sealing plate, and the heat exchange efficiency is further improved.

Optionally, each heat exchange pipeline is detachably connected with a plurality of heat conduction cuffs, and the heat conduction cuffs are fixedly connected with heat conduction fins.

By adopting the technical scheme, the heat exchange area between the fluid and the cooling liquid is increased by the heat conduction fins and the heat conduction hoop, and the heat of the fluid can be quickly transferred to the cooling liquid in the heat exchange pipeline from the heat conduction fins, so that the heat transfer efficiency between the fluid and the cooling liquid is increased.

Optionally, each heat conducting fin is obliquely arranged on the heat exchange pipe.

Through adopting above-mentioned technical scheme, heat conduction fin slope sets up can further increase the heat transfer area between fluid and the coolant liquid, further promotes heat exchange efficiency.

Optionally, each of the heat-conducting cuffs is provided with a plurality of heat-conducting fins.

Through adopting above-mentioned technical scheme, the figure of heat conduction fin increases, further increases the heat transfer area between coolant liquid and the fluid.

Optionally, the heat conduction sealing plate located at the second end socket is connected with a butt joint pipe, and the butt joint pipe is connected with the heat exchange pipeline through an expansion joint.

By adopting the technical scheme, the expansion joint has high axial flexibility and is easy to deform, the thermal expansion difference generated by different wall temperatures of the pipe and the shell can be compensated, and the axial load of the pipe and the shell is reduced, so that the temperature difference stress of the heat exchange pipeline is reduced, the strength damage, the instability damage and the pull-out damage of the heat exchange pipeline are avoided, and the service life of the heat exchanger is prolonged.

Optionally, the butt joint pipe and the expansion joint and the heat exchange pipe are detachably connected.

Through adopting above-mentioned technical scheme, the connected mode of dismantlement connection is favorable to later maintenance personnel to change and maintain expansion joint and heat transfer pipeline, further prolongs the life of heat exchanger.

Optionally, the baffle plate is provided with a fixing hole corresponding to the heat exchange pipeline, an elastic sealing ring is arranged in the fixing hole, and the elastic sealing ring is abutted to the heat exchange pipeline.

Through adopting above-mentioned technical scheme, the clearance between heat transfer pipeline and the baffling board is filled to the elastic sealing ring, avoids leading to the damage because of the collision between heat transfer pipeline and the baffling board.

Optionally, a sealing sleeve is sleeved at the joint of the expansion joint and the heat exchange pipeline.

By adopting the technical scheme, the sealing sleeve seals the joint of the expansion joint and the heat exchange pipeline, so that the possibility of leakage of the cooling liquid from the joint is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first end socket is divided into an upper cavity and a lower cavity through the split-range partition plate, the flow of cooling liquid is U-shaped due to the first end socket, the heat exchange pipeline and the second end socket, the flow of the cooling liquid is lengthened, and the heat exchange efficiency is high;

2. the heat conduction sealing plate is made of materials with high heat conductivity coefficient, and the cooling liquid in the liquid collection space can exchange heat with fluid in the shell through the heat conduction sealing plate, so that the heat exchange efficiency is further improved;

3. in the application, the heat exchange pipeline is detachably connected with the heat conduction hoop and the heat conduction fins, so that fluid can quickly transfer heat to cooling liquid, and the heat exchange efficiency is further improved;

4. the expansion joint is passed through with the heat transfer pipeline to the butt joint pipe in this application and links to each other, and the expansion joint passes through deformation, reduces heat transfer pipeline's temperature difference stress, avoids arousing that intensity destroys, unstability destroy and heat transfer pipeline to draw and take off destruction to the life of extension heat exchanger.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram in a front view direction in the embodiment of the present application.

FIG. 3 is a schematic cross-sectional view taken along the direction A-A in the embodiment of the present application

Fig. 4 is an exploded structural diagram of the connection between the second sealing head and the shell according to the embodiment of the present application.

Fig. 5 is an enlarged schematic view at B in the embodiment of the present application.

Description of reference numerals: 1. a housing; 2. a first end enclosure; 3. a second end enclosure; 4. a heat exchange conduit; 5. a baffle plate; 6. a first fluid inflow pipe; 7. a first fluid outflow tube; 8. a second fluid inflow tube; 9. a second fluid outflow tube; 10. a heat conducting seal plate; 11. butt-joint pipes; 12. a split-range partition plate; 13. a liquid collecting space; 14. a thermally conductive ferrule; 15. a heat conductive fin; 16. an expansion joint; 17. sealing sleeves; 18. a support; 19. a fixing hole; 20. an elastic sealing ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses chemical industry is with high-efficient shell and tube heat exchanger. Referring to fig. 1 and 2, a high-efficiency shell and tube heat exchanger for chemical engineering comprises a shell 1, a first seal head 2, a second seal head 3 and a support 18. The support 18 is positioned at the bottom of the shell 1 and used for supporting the high-efficiency tubular heat exchanger for chemical engineering. The cooling liquid flows out of the first seal head 2 from the first seal head 2 through the shell 1, the second seal head 3 and the shell 1 in sequence and flows in a U shape; fluid to be heat-exchanged flows in from one end of the shell 1 and flows out from the other end of the shell 1, and heat exchange between the cooling liquid and the fluid to be heat-exchanged is completed in the shell 1, so that efficient heat exchange is realized.

Referring to fig. 2 and 3, a second fluid inflow pipe 8 is fixedly installed at one end of the housing 1, and the second fluid inflow pipe 8 is located at the bottom of the housing 1. The other end of the shell 1 is fixedly provided with a second fluid outlet pipe 9, and the second fluid outlet pipe 9 is positioned above the shell 1. Fixedly connected with polylith baffling board 5 in the inner chamber of casing 1, every baffling board 5 all vertical setting, and stagger along casing 1 axial and arrange. A gap is reserved between the baffle plate 5 and the shell 1, the size of the gap determines the time for heat exchange of fluid in the shell 1, and the size of the gap can be adjusted according to actual needs. The fluid to be heat-exchanged flows into the housing 1 from the second fluid inflow pipe 8, flows in the housing 1 in an S-shape, and is discharged from the second fluid outflow pipe 9.

Referring to fig. 3 and 4, a plurality of heat exchange pipes 4 are arranged in the housing 1, fixing holes 19 corresponding to the heat exchange pipes 4 are formed in the baffle plates 5, the heat exchange pipes 4 are arranged in the fixing holes 19 in a penetrating manner and fixed through the baffle plates 5, so that each heat exchange pipe 4 is arranged in parallel along the length direction of the housing 1. An elastic sealing ring 20 is fixedly connected in the fixing hole 19, and the elastic sealing ring 20 fills a gap between the baffle plate 5 and the heat exchange pipeline 4, so that the possibility of damage caused by collision between the heat exchange pipeline 4 and the baffle plate 5 is reduced, and the service life of the heat exchanger is prolonged.

Referring to fig. 4 and 5, the heat exchange pipe 4 is sleeved with a plurality of heat conducting cuffs 14 along the length direction thereof, the heat conducting cuffs 14 are composed of two arc-shaped substrates with ear plates at the end parts, and the two arc-shaped substrates are fastened to the outer peripheral wall of the heat exchange pipe 4 through bolts. Equal fixedly connected with heat conduction fin 15 on every arc base plate, heat conduction fin 15 slope sets up, and heat conduction fin 15 and heat conduction cuff 14 cooperate the use for heat transfer area between fluid and the coolant liquid increases, and fluid can conduct heat fast on heat conduction fin 15 and heat conduction cuff 14, then conducts heat to the coolant liquid, cools off, further increases the heat transfer efficiency between fluid and the coolant liquid.

Referring to fig. 3, a first fluid inflow pipe 6 is fixedly connected to the lower portion of the first end enclosure 2, a first fluid outflow pipe 7 is fixedly connected to the upper portion of the first end enclosure 2, and the first fluid inflow pipe 6 supplies cooling liquid to enter and exit the heat exchanger through the first fluid outflow pipe 7.

Referring to fig. 3, a heat conduction closing plate 10 is fixedly connected to both one side of the first sealing head 2 close to the heat exchange pipeline 4 and one side of the second sealing head 3 close to the heat exchange pipeline 4. The heat conducting plate at the first seal head 2 is provided with a positioning hole, and one end of the heat exchange tube penetrates through the positioning hole and extends into the first seal head 2.

Referring to fig. 3, a pass partition plate 12 is fixedly installed in the first seal head 2, the pass partition plate 12 is horizontally arranged, and the pass partition plate 12 divides the first seal head 2 into an upper chamber and a lower chamber. The second end socket 3 and the heat conduction closing plate 10 form a liquid collecting space 13, cooling liquid is collected in the liquid collecting space 13, and the cooling liquid in the liquid collecting space 13 can exchange heat with fluid in the shell 1 through the heat conduction closing plate 10. The cooling liquid enters an upper cavity of the first seal head 2 through the first fluid inflow pipe 6, then enters the liquid collecting space 13 through the heat exchange pipeline 4 above the shell 1, then enters a lower cavity of the first seal head 2 through the heat exchange pipeline 4 below the shell 1, and finally flows to the outside through the first fluid outflow pipe 7; the flow of the cooling liquid is U-shaped, the flow of the cooling liquid is lengthened, and the heat exchange efficiency is high.

Referring to fig. 4, the heat conduction closing plate 10 at the second end socket 3 is fixedly connected with the butt joint pipe 11, the butt joint pipe 11 is connected with the heat exchange pipeline 4 through the expansion joint 16, the expansion joint 16 has large axial flexibility and is easy to deform, the thermal expansion difference generated by different wall temperatures of the pipe and the shell 1 can be compensated, the axial load of the pipe and the shell is reduced, the temperature difference stress of the heat exchange pipeline 4 is reduced, the strength damage, the instability damage and the pull-off damage of the heat exchange pipeline 4 are avoided, and the service life of the tubular heat exchanger is prolonged. The butt joint pipe 11, the expansion joint 16 and the heat exchange pipeline 4 are bolted together through bolts so as to facilitate replacement and maintenance of components of the heat exchanger at a later stage.

Referring to fig. 4, a sealing sleeve 17 is sleeved at the joint of the expansion joint 16 and the heat exchange pipeline 4, the sealing sleeve 17 is composed of two semi-annular sleeves, and the semi-annular sleeves are made of magnetic materials and can be fixed at the joint of the expansion joint 16 and the heat exchange pipeline 4 through magnetic adsorption. The sealing sleeve 17 reduces the possibility of leakage of coolant from the connection of the expansion joint 16 and the heat exchange conduit 4.

The implementation principle of the high-efficient tubular heat exchanger for chemical engineering of the embodiment of the application is as follows: cooling liquid enters a cavity above the first end socket 2 from the first fluid inflow pipe 6, then enters the heat exchange pipeline 4, is collected in the liquid collection cavity, and then enters a cavity below the first end socket 2 from the heat exchange pipeline 4, wherein the flow of the cooling liquid is U-shaped; the fluid to be heat exchanged enters the housing 1 through the second fluid inflow pipe 8, and after the heat exchange in the housing 1 is completed, flows out of the housing 1 through the second fluid outflow pipe 9.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A high-efficiency tubular heat exchanger for chemical engineering comprises a shell (1), a first seal head (2) connected with one end of the shell (1), and a second seal head (3) connected with the other end of the shell (1); a plurality of heat exchange pipelines (4) are arranged in the shell (1), and each heat exchange pipeline (4) is arranged along the length direction of the shell (1) and is parallel to each other; baffle plate (5) have been arranged along its length direction in the casing (1) crisscross, heat transfer pipeline (4) wear to locate on baffle plate (5), its characterized in that: a first fluid inflow pipe (6) is arranged on one side of the shell (1), and a first fluid outflow pipe (7) is arranged on the other side of the shell (1); a second fluid inflow pipe (8) is arranged above the first seal head (2), and a second fluid outflow pipe (9) is arranged below the first seal head (2); first head (2) with second head (3) are close to one side of casing (1) all is equipped with heat conduction shrouding (10), the tip of heat transfer pipeline (4) with heat conduction shrouding (10) are linked together, fixedly connected with range partition (12) in first head (2), range partition (12) level sets up, second head (3) and heat conduction shrouding (10) form album liquid space (13).

2. The high-efficiency tubular heat exchanger for chemical engineering according to claim 1, characterized in that: each heat exchange pipeline (4) is detachably connected with a plurality of heat conduction hoops (14), and the heat conduction hoops (14) are fixedly connected with heat conduction fins (15).

3. The high-efficiency tubular heat exchanger for chemical engineering according to claim 2, characterized in that: each heat conduction fin (15) is obliquely arranged on the heat exchange pipeline (4).

4. The high-efficiency tubular heat exchanger for chemical engineering according to claim 2, characterized in that: each heat conducting hoop (14) is provided with a plurality of heat conducting fins (15).

5. The high-efficiency tubular heat exchanger for chemical engineering according to claim 1, characterized in that: and the heat conduction sealing plate (10) positioned at the second end socket (3) is connected with a butt joint pipe (11), and the butt joint pipe (11) is connected with the heat exchange pipeline (4) through an expansion joint (16).

6. The high-efficiency tubular heat exchanger for chemical engineering according to claim 5, characterized in that: the butt joint pipe (11) is detachably connected with the expansion joint (16) and the expansion joint (16) is detachably connected with the heat exchange pipeline (4).

7. The high-efficiency tubular heat exchanger for chemical engineering according to claim 1, characterized in that: the baffle plate (5) is provided with a fixing hole (19) corresponding to the heat exchange pipeline (4), an elastic sealing ring (20) is arranged in the fixing hole (19), and the elastic sealing ring (20) is abutted to the heat exchange pipeline (4).

8. The high-efficiency tubular heat exchanger for chemical engineering according to claim 5, characterized in that: and a sealing sleeve (17) is sleeved at the joint of the expansion joint (16) and the heat exchange pipeline (4).