CN215639017U

CN215639017U - Graphite heat exchanger

Info

Publication number: CN215639017U
Application number: CN202122266849.1U
Authority: CN
Inventors: 宋涛; 宋修志
Original assignee: Qingdao Bohua Graphite Equipment Co ltd
Current assignee: Qingdao Bohua Graphite Equipment Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-25
Anticipated expiration: 2031-09-18

Abstract

The application relates to the field of heat exchangers, in particular to a graphite heat exchanger, which comprises a shell; the heat exchange blocks are arranged in the shell and are connected end to end; the first channel is arranged on the heat exchange blocks, and the first channels of the adjacent heat exchange blocks are communicated with each other; the second channel is arranged on the heat exchange blocks and penetrates through two opposite sides of the axis of the heat exchange blocks along the arrangement direction perpendicular to the plurality of heat exchange blocks; the gap is annular and is arranged between the inner side of the shell and the outer peripheral surface of the heat exchange block, and the gap is communicated with the second channel; the spiral flow deflector is arranged in the gap and arranged around the heat exchange blocks, the inner side of the spiral flow deflector is abutted against the heat exchange blocks, and the outer side of the spiral flow deflector is abutted against the shell. The application has the effect of realizing that the heat exchange liquid can continuously return and flow in the channel of the heat exchange block and improving the utilization rate of the heat exchange liquid.

Description

Graphite heat exchanger

Technical Field

The application relates to the field of heat exchangers, in particular to a graphite heat exchanger.

Background

The graphite material has good physical and mechanical properties and excellent corrosion resistance, so that the graphite heat exchanger is mainly used for heat exchange of corrosive media such as hydrochloric acid, sulfuric acid, acetic acid and the like as chemical heat exchange equipment.

The graphite heat exchanger generally comprises a shell and a heat exchange module consisting of a plurality of heat exchange blocks connected end to end in the shell, a gap is formed between the heat exchange module and the shell, two groups of mutually perpendicular and non-communicated channels are arranged in each heat exchange block, a group of channels between adjacent heat exchange blocks are communicated with each other and used for conveying gas through the group of channels, and the other group of channels and the gap of each heat exchange block are communicated and communicated with the gap between the outer side of the heat exchange block and the inner side of the shell through the group of channels and used for conveying heat exchange liquid.

In view of the above-mentioned related technologies, the inventor believes that heat exchange liquid in the existing heat exchanger flows vertically and downwardly along the gap, which results in low flow rate of the heat exchange liquid entering the channel of the heat exchange block, and the heat exchange liquid cannot be fully utilized to exchange heat inside the heat exchange block.

SUMMERY OF THE UTILITY MODEL

In order to realize that heat transfer liquid can turn back in succession and flow in the passageway of heat transfer piece, improve heat transfer liquid's utilization ratio, this application provides a graphite heat exchanger.

The application provides a graphite heat exchanger adopts following technical scheme:

a graphite heat exchanger comprising:

a housing;

the heat exchange blocks are arranged in the shell and are connected end to end;

the first channel is arranged on the heat exchange blocks, and the first channels of the adjacent heat exchange blocks are communicated with each other;

the second channel is arranged on the heat exchange blocks and penetrates through two opposite sides of the axis of the heat exchange blocks along the arrangement direction perpendicular to the plurality of heat exchange blocks;

the gap is annular and is arranged between the inner side of the shell and the outer peripheral surface of the heat exchange block, and the gap is communicated with the second channel;

the spiral flow deflector is arranged in the gap and arranged around the heat exchange blocks, the inner side of the spiral flow deflector is abutted against the heat exchange blocks, and the outer side of the spiral flow deflector is abutted against the shell.

Through adopting above-mentioned technical scheme, the annular gap communicates with second passageway, and set up the spiral water conservancy diversion piece around a plurality of heat transfer blocks in the clearance, make the inboard butt of spiral water conservancy diversion piece in the heat transfer block, outside butt in the casing, when carrying out heat transfer during operation, the heat transfer liquid that lets in the casing clearance is along vertical downward flow, heat transfer liquid will receive the hindrance reflection of spiral water conservancy diversion piece, partly flows to second passageway in with higher speed, another part carries out the heat transfer along the orbit that encircles of spiral water conservancy diversion piece in the casing, compare in the vertical downward flow of traditional heat transfer liquid direct follow casing clearance, the heat transfer is more abundant, heat exchange efficiency is higher, thereby realize that heat transfer liquid can turn back the flow in succession in the passageway of heat transfer block, improve heat transfer liquid's utilization ratio.

Optionally, the housing includes:

a sleeve, cylindrical;

and the two end covers are detachably connected to the end part of the sleeve.

Through adopting above-mentioned technical scheme, end to end's heat transfer piece sets up in the sleeve, and the end cover setting is at telescopic both ends, and the end cover sets up with telescopic cooperation and realizes the holistic seal installation of graphite heat exchanger or dismantlement.

Optionally, two ends of the spiral flow deflector are provided with positioning rings coaxially arranged with the spiral flow deflector;

the end covers are provided with annular grooves on the sides close to each other, and the positioning rings are inserted into the annular grooves.

Through adopting above-mentioned technical scheme, the holding ring sets up and can insert with spiral water conservancy diversion piece coaxial line and establish in the annular, and the holding ring cooperates with the annular, realizes supporting and spacing fixed to spiral water conservancy diversion piece.

Optionally, the circumferential surface of the positioning ring is provided with positioning holes;

the peripheral surface of the end cover is in threaded connection with a positioning bolt, and the positioning bolt can be inserted into the positioning hole.

Through adopting above-mentioned technical scheme, positioning bolt realizes the location and the fixed to the holding ring, and easy to assemble just avoids the holding ring to slide in the annular.

Optionally, one side, away from each other, of each of the two positioning rings is provided with a limiting hole;

the annular groove is internally fixed with a limiting column which can be inserted into the limiting hole.

Through adopting above-mentioned technical scheme, spacing hole and spacing post cooperation make things convenient for the holding ring to insert and establish in the annular, realize that the holding ring is fixed with being connected of annular.

Optionally, a pressing ring is fixed on one side of the end cover close to the sleeve, and the pressing ring can press the end face of the heat exchange block in the sleeve.

Through adopting above-mentioned technical scheme, the setting of clamping ring realizes compressing tightly fixedly to the heat transfer piece.

Optionally, a sealing gasket is arranged between the pressure ring and the heat exchange block.

Through adopting above-mentioned technical scheme, sealed setting up of filling up has ensured the leakproofness between clamping ring and the heat transfer piece to cause pressure loss and crushing mutually when avoiding clamping ring and heat transfer piece direct contact.

Optionally, sealing strips are fixed at the side edges of the two sides of the spiral flow deflector.

By adopting the technical scheme, the sealing strip ensures the sealing performance between the spiral flow deflector and the sleeve, so that the inner side of the spiral flow deflector is abutted against the heat exchange block and the outer side of the spiral flow deflector is abutted against the sleeve, and the spiral flow deflector is prevented from being mutually damaged by pressure and crushed when being in direct contact with the sleeve.

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

1. when heat exchange is carried out, the spiral flow deflector is arranged, so that one part of heat exchange liquid introduced into the shell can flow into the channel II at an accelerated speed, and the other part of heat exchange liquid can be subjected to obstruction reflection to carry out heat exchange along the surrounding track of the spiral flow deflector in the shell;

2. the limiting hole is matched with the limiting column, so that the positioning ring can be conveniently inserted into the annular groove, the positioning ring is matched with the annular groove, the positioning ring is connected and fixed with the annular groove, the spiral flow deflector is supported and limited and fixed, and the positioning ring is positioned and fixed in the annular groove through the positioning bolt, so that the installation is convenient to realize, and the positioning ring is prevented from sliding in the annular groove;

3. the sealing gasket ensures the sealing performance between the pressure ring and the heat exchange block, and avoids mutual pressure loss and pressure damage when the pressure ring is in direct contact with the heat exchange block; the sealing strip ensures the sealing performance between the spiral flow deflector and the sleeve, and avoids mutual pressure loss and pressure damage when the spiral flow deflector is in direct contact with the sleeve.

Drawings

Fig. 1 is a schematic structural diagram of an overall graphite heat exchanger according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a highlighted heat exchange block of a graphite heat exchanger according to an embodiment of the application.

Fig. 3 is a sectional view of the entire structure of a graphite heat exchanger according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a convex end cover of a graphite heat exchanger according to an embodiment of the present application.

Fig. 5 is an enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 1. a housing; 11. a sleeve; 12. an end cap; 121. a ring groove; 122. a limiting column; 123. positioning the bolt; 124. pressing a ring; 13. a gap; 2. a heat exchange block; 21. a first channel; 22. a second channel; 3. a spiral flow deflector; 31. a positioning ring; 32. a limiting hole; 33. and (7) positioning the holes.

Detailed Description

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

The embodiment of the application discloses a graphite heat exchanger. Referring to fig. 1, a graphite heat exchanger includes a housing 1, a heat exchange block 2, and a spiral flow deflector 3.

Referring to fig. 1, a housing 1 includes a sleeve 11 and two end caps 12, the sleeve 11 is cylindrical, and the two end caps 12 are bolted to two ends of the sleeve 11.

Referring to fig. 1, the end covers 12 are arranged at two ends of the sleeve 11 in a bolt connection mode, so that on one hand, the sealing installation of the overall structure of the graphite heat exchanger is realized, on the other hand, the sleeve 11 and the end covers 12 are conveniently detached from the overall structure respectively, and the periodic maintenance and the replacement are conveniently realized.

Referring to fig. 2, heat transfer piece 2 is provided with a plurality ofly, and each heat transfer piece 2 all is cylindricly, and a plurality of heat transfer pieces 2 are along its axis direction end to end, has all seted up two sets of passageways on each heat transfer piece 2, and two sets of passageways mutually perpendicular to just do not communicate, and the passageway includes passageway one 21 and passageway two 22, and passageway one 21 is the same with heat transfer piece 2's axis direction, and just the passageway one 21 of adjacent heat transfer piece 2 communicates each other, and passageway two 22 runs through the relative both sides of heat transfer piece 2 axis along the array orientation of a plurality of heat transfer pieces 2 of perpendicular to.

Referring to fig. 3, a gap 13 is further provided between the outer side of the heat exchange block 2 and the inner side of the sleeve 11, the gap 13 is annular, and the gap 13 can communicate with the second passage 22.

Referring to fig. 2 and 3, the spiral flow deflectors 3 are disposed in the gap 13 and surround the heat exchange blocks 2, the spiral flow deflectors 3 can abut against the outer sides of the heat exchange blocks 2 and the inner sides of the sleeves 11, and sealing strips are fixed at the side positions of the two sides of the spiral flow deflectors 3, namely the positions of the spiral flow deflectors 3 which can abut against the heat exchange blocks 2 and the sleeves 11.

Referring to fig. 2 and 3, the sealing strip enhances the sealing performance between the spiral deflector 3 and the sleeve 11, and prevents the spiral deflector 3 and the sleeve 11 from being damaged by pressure and pressure, when the heat-exchange liquid is introduced into the casing 1, it circulates in the interspace 13 and tends to flow vertically downwards, because the first channel 21 and the second channel 22 are not communicated with each other, the heat exchange liquid is obstructed and reflected by the spiral flow deflector 3, one part of the heat exchange liquid flows into the second channel 22 at an accelerated speed, and the other part of the heat exchange liquid exchanges heat along the surrounding track of the spiral flow deflector 3 in the shell 1, compared with the traditional heat exchange liquid which directly flows vertically and downwards from the gap 13 in the shell 1, the heat exchange is more sufficient, the heat exchange efficiency is higher, thereby realize that heat transfer liquid can be in the passageway of heat transfer piece 2 the continuous flow of turning back, satisfy different work demands, improve heat transfer liquid's utilization ratio.

Referring to fig. 4 and 5, the two end covers 12 are provided with a ring groove 121 on one side close to each other, the two ends of the spiral flow deflector 3 are provided with positioning rings 31, the positioning rings 31 are coaxially arranged with the spiral flow deflector 3, and the positioning rings 31 are fixedly connected with the end of the spiral flow deflector 3. The positioning ring 31 can be inserted into the ring groove 121, the limiting holes 32 are formed in one side, away from each other, of the positioning ring 31, a limiting column 122 is integrally formed in the ring groove 121, the limiting column 122 can be inserted into the limiting holes 32, the positioning holes 33 are further formed in the peripheral surface of the positioning ring 31, the peripheral surface of the end cover 12 is in threaded connection with positioning bolts 123, the positioning bolts 123 can be inserted into the positioning holes 33 and can abut against one side, close to the spiral flow deflector 3, of the positioning ring 31.

Referring to fig. 3 and 4, when heat exchange is performed, the distance between the two positioning rings 31 is the same, the two positioning rings 31 are respectively rotatably connected in the annular grooves 121 at the two ends of the sleeve 11, the positioning rings 31 are accurately positioned and tightly inserted in the annular grooves 121 by matching the limiting holes 32 with the limiting posts 122, the positioning bolts 123 are matched with the positioning holes 33 (referring to fig. 5) to position and fix the positioning rings 31, and the two positioning rings 31 support the spiral deflector 3, so that the spiral deflector 3 is limited and fixed in the sleeve 11, and the heat exchange device is convenient to install and disassemble and avoids the positioning rings 31 from sliding in the annular grooves 121.

Referring to fig. 4, a pressing ring 124 is fixed on one side of the end cover 12 close to the sleeve 11, the pressing ring 124 can press the end face of the heat exchange block 2 in the sleeve 11, and a sealing gasket is arranged between the pressing ring 124 and the heat exchange block 2.

Referring to fig. 4, the end face of the heat exchange block 2 in the sleeve 11 can be pressed and fixed by the pressing ring 124, the sealing gasket enhances the sealing performance between the pressing ring 124 and the heat exchange block 2, and the pressing ring 124 and the heat exchange block 2 are prevented from being mutually damaged and crushed when being in direct contact.

The implementation principle of the graphite heat exchanger in the embodiment of the application is as follows: the matching of the limiting hole 32 and the limiting column 122 facilitates the insertion of the positioning ring 31 in the ring groove 121, the matching of the positioning ring 31 and the ring groove 121 realizes the connection and fixation of the positioning ring 31 and the ring groove 121, thereby realizing the supporting and limiting fixation of the spiral flow deflector 3, the positioning bolt 123 positions and fixes the positioning ring 31 in the ring groove 121, and the pressing ring 124 is arranged to press the heat exchange block 2, when the heat exchange work is carried out, the heat exchange liquid circulates in the clearance 13 and has the tendency of flowing vertically downwards along the inner wall of the cylinder, through addding spiral water conservancy diversion piece 3 in casing 1, heat transfer liquid is under the hindrance reflection of spiral water conservancy diversion piece 3, and partly flow to passageway two 22 with higher speed in, and the orbit that encircles of spiral water conservancy diversion piece 3 in casing 1 is followed to another part, compares in the vertical downward flow of traditional heat transfer liquid direct follow casing 1 inner gap 13, and the heat transfer is more abundant, and heat exchange efficiency is higher.

The above operations are repeated continuously, so that the heat exchange liquid can flow back and forth continuously in the channel communicated with the heat exchange block 2 in a circulating mode, and the utilization rate of the heat exchange liquid is improved.

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 graphite heat exchanger, comprising:

a housing (1);

the heat exchange blocks (2) are arranged in the shell (1), and the heat exchange blocks (2) are connected end to end;

the first channel (21) is arranged on the heat exchange blocks (2), and the first channels (21) of the adjacent heat exchange blocks (2) are communicated with each other;

the second channel (22) is arranged on the heat exchange blocks (2), and the second channel (22) penetrates through two opposite sides of the axis of the heat exchange blocks (2) along the arrangement direction perpendicular to the plurality of heat exchange blocks (2);

the gap (13) is annular and is arranged between the inner side of the shell (1) and the outer peripheral surface of the heat exchange block (2), and the gap (13) is communicated with the second channel (22);

the spiral flow deflectors (3) are arranged in the gaps (13) and surround the heat exchange blocks (2), the inner sides of the spiral flow deflectors (3) are abutted against the heat exchange blocks (2), and the outer sides of the spiral flow deflectors are abutted against the shell (1).

2. A graphite heat exchanger according to claim 1, characterized in that the housing (1) comprises:

a sleeve (11) having a cylindrical shape;

and two end covers (12) which are detachably connected with the end parts of the sleeve (11).

3. A graphite heat exchanger as claimed in claim 2, wherein: positioning rings (31) which are coaxial with the spiral flow deflector are arranged at the two ends of the spiral flow deflector (3);

annular grooves (121) are formed in one sides, close to each other, of the end covers (12), and the positioning rings (31) are inserted into the annular grooves (121).

4. A graphite heat exchanger as claimed in claim 3, wherein: the peripheral surface of the positioning ring (31) is provided with a positioning hole (33);

the peripheral surface of the end cover (12) is in threaded connection with a positioning bolt (123), and the positioning bolt (123) can be inserted into the positioning hole (33).

5. A graphite heat exchanger as claimed in claim 1, wherein: one sides of the two positioning rings (31) far away from each other are both provided with limiting holes (32);

the limiting column (122) is fixed in the annular groove (121), and the limiting column (122) can be inserted into the limiting hole (32).

6. A graphite heat exchanger as claimed in claim 1, wherein: one side of the end cover (12) close to the sleeve (11) is fixed with a pressing ring (124), and the pressing ring (124) can compress the end face of the heat exchange block (2) in the sleeve (11).

7. A graphite heat exchanger as claimed in claim 1, wherein: and a sealing gasket is arranged between the pressure ring (124) and the heat exchange block (2).

8. A graphite heat exchanger as claimed in claim 1, wherein: sealing strips are fixed on the side edge positions of the two sides of the spiral flow deflector (3).