CN113883948A

CN113883948A - Tube type heat exchanger

Info

Publication number: CN113883948A
Application number: CN202111123834.8A
Authority: CN
Inventors: 张开东; 韩宝亿; 张凤英; 周晓林; 王玉振
Original assignee: Wuxi Baoyi Energy Equipment Co ltd
Current assignee: Wuxi Baoyi Energy Equipment Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-01-04
Anticipated expiration: 2041-09-24
Also published as: CN113883948B

Abstract

The invention relates to the field of heat exchangers, in particular to a tube type heat exchanger which comprises a heat exchanger body, wherein a heat insulation layer and a protective shell are arranged on the heat exchanger body, the heat insulation layer is positioned between the protective shell and the heat exchanger body, the heat insulation layer can play a role of heat insulation, the heat insulation layer is arranged between the heat exchanger body and the protective shell, heat loss in the heat exchanger body can be reduced, the heat exchange effect is improved, and the problem that the heat exchange effect is influenced because part of heat in the heat exchanger body can be emitted through a shell is solved.

Description

Tube type heat exchanger

Technical Field

The invention relates to the field of heat exchangers, in particular to a shell and tube heat exchanger.

Background

The shell and tube heat exchanger is a heat exchanger with simple structure, low cost, wider flow cross section and low heat transfer coefficient, can be used under high temperature and high pressure, and is a heat exchanger which is widely applied at present.

Chinese patent with publication number CN208779986U discloses an anti-corrosion tube type heat exchanger, which comprises a heat exchanger body, wherein the middle part of the heat exchanger body comprises a shell, both ends of the shell are connected with tube boxes, the joints of the shell and the tube boxes, which are connected with the tube boxes and the shell, are fixedly connected with sealing extension plates, the shell is connected with the tube boxes through the sealing extension plates, the left side surface of one tube box is fixedly communicated with a first liquid inlet tube, the right side surface of the other tube box is fixedly communicated with a second liquid inlet tube, the outer side surface of the shell is fixedly connected with a connecting sleeve, the bottom of the connecting sleeve is fixedly connected with a supporting seat, the top of the shell is respectively and fixedly communicated with a third liquid inlet tube and a fourth liquid inlet tube, the interior of the tube boxes is provided with a cavity, the interior of the shell is provided with a heat exchange chamber, a tube plate is arranged between the heat exchange chamber and the cavity, and the outer side surface of the tube plate is fixedly connected with the inner wall of the shell, the heat exchange chamber is characterized in that a heat exchange tube is arranged inside the heat exchange chamber, two ends of the heat exchange tube are connected with the tube plate, a through hole is formed in the tube plate, the heat exchange tube is matched with the through hole, the cavity is communicated with the outer side of the tube box through a first liquid inlet tube or a second liquid inlet tube, and the heat exchange chamber is communicated with the outer side of the shell through a third liquid inlet tube or a fourth liquid inlet tube.

Although the heat exchanger can achieve the purpose of heat exchange, in the heat exchange process, part of heat in the heat exchanger body can be emitted through the shell, and the heat exchange effect is affected.

Disclosure of Invention

In order to improve this internal partial heat of heat exchanger and can distribute out through the casing, influence the problem of heat transfer effect, this application provides a shell and tube heat exchanger.

The application provides a shell and tube heat exchanger adopts following technical scheme:

the shell and tube heat exchanger comprises a heat exchanger body, wherein a heat insulation layer and a protective shell are arranged on the heat exchanger body, and the heat insulation layer is located between the protective shell and the heat exchanger body.

Through adopting above-mentioned technical scheme, the heat preservation can play the heat preservation effect, sets up the heat preservation between heat exchanger body and protecting crust, can reduce the inside heat loss of heat exchanger body, helps improving heat transfer effect, has improved this internal part heat of heat exchanger and can distribute out through the casing, influences the problem of heat transfer effect.

Optionally, the heat preservation with the connection can be dismantled to the heat exchanger body, be equipped with the access hole on the protective shell and be used for sheltering from the access cover of access hole, the access cover with the connection can be dismantled to the protective shell.

By adopting the technical scheme, a user can regularly detach the access cover and inspect the heat-insulating layer through the access hole so as to determine whether the heat-insulating layer needs to be replaced or not; when changing the heat preservation, dismantle the heat preservation from the heat exchanger body, take out the heat preservation through the access hole, install new heat preservation on the heat exchanger body through the access hole again, realize changing smoothly of heat preservation to ensure the heat preservation effect of heat preservation.

Optionally, the heat preservation layer comprises a plurality of heat preservation blocks, and the heat preservation blocks are detachably connected with the heat exchanger body

Through adopting above-mentioned technical scheme, the user can change single heat insulating block according to the demand when the inspection heat insulating layer, needn't change whole heat insulating layer, has saved the replacement expense on the one hand, and on the other hand, material saving can not cause the waste of material.

Optionally, the heat exchanger body is rotatably connected with an annular mounting frame, and the heat preservation block is detachably connected with the annular mounting frame

By adopting the technical scheme, when the heat-insulating block is checked to be required to be replaced, the annular mounting frame can be rotated, so that each part on the heat-insulating block has a chance to be rotated to the access hole to be checked, and the checking effect is better; the state of every heat preservation piece is observed through the access hole, then whether confirm the heat preservation piece and need change, the heat preservation piece that will change rotates to access hole department, the convenient change.

Optionally, be equipped with the T shape piece on the annular mounting bracket, the length direction of T shape piece with the length direction of annular mounting bracket is the same, the vertical part of T shape piece with the annular mounting bracket links to each other, the both sides of heat preservation piece are located the horizontal part of T shape piece with between the annular mounting bracket, the heat preservation piece is the heat preservation cotton.

Through adopting above-mentioned technical scheme, when changing the heat preservation cotton, pull out between the horizontal part of the cotton both sides that will keep warm from T shape piece and annular mounting bracket, rethread access hole will keep warm the cotton and take out, then insert between the horizontal part of T shape piece and the annular mounting bracket through access hole with the cotton both sides of new heat preservation, accomplish the cotton change that keeps warm, and the change process is convenient, swift.

Optionally, a stop piece is connected to the T-shaped piece in a sliding manner, a spring is connected between the stop piece and the T-shaped piece, the stop piece is located in the protective shell and abuts against the inner wall of the protective shell, and when the stop piece is located in the protective shell, the spring is compressed.

Through adopting above-mentioned technical scheme, when changing the heat preservation cotton, the heat preservation cotton that will change rotates to access hole department, and the locking piece that is located the T shape piece of heat preservation cotton both sides is popped out under the spring action of spring, and the locking piece is located access hole lateral wall department after popping out to carry on spacingly to the protecting crust, avoid when changing the heat preservation cotton that the protecting crust takes place to rotate, influence the change of heat preservation cotton.

Optionally, the stop piece is contradicted through the ball the protecting crust inner wall, the ball sets up on the stop piece, the ball is contradicted the protecting crust inner wall.

Through adopting above-mentioned technical scheme, when the locking plate was in the protecting crust, the ball contradicted the protecting crust inner wall, and the setting up of ball can make the rotation of annular mounting bracket more smooth and easy, brings the convenience for observing the cotton user state that keeps warm.

Optionally, the heat exchanger body is connected with a support, the support is connected with a roller and a locking assembly, the roller is rotatably connected to the support, the locking assembly comprises a locking ring, a ratchet and a pawl, the locking ring is rotatably connected to the support, a gap is formed in the locking ring, the ratchet is arranged on the locking ring, a connecting rod is arranged on the support, the pawl is rotatably connected with the connecting rod, a torsion spring is sleeved on the connecting rod, one end of the torsion spring is connected to the support, the other end of the torsion spring is connected to the pawl, the pawl is connected to the ratchet, the direction of the ratchet on the adjacent locking ring on the same side of the heat exchanger body is opposite, and when the gap faces the ground, the gap and the ratchet are reserved between the gap and the ground.

Through adopting above-mentioned technical scheme, when the heat exchanger body is removed to needs, adjust the locking ring, make the breach on the locking ring towards ground, promote the heat exchanger body, the gyro wheel takes place to rotate, thereby realize the purpose of conveniently removing the heat exchanger body, when need not continue to remove the heat exchanger body, rotate the locking ring, make the ratchet on the locking ring towards ground and contradict subaerial, the ratchet is by the pawl chucking this moment, play the locking effect to the heat exchanger body, because the ratchet opposite direction on the adjacent locking ring with one side on the heat exchanger body, consequently, can make the heat exchanger body all be difficult for taking place to remove from which direction at both ends.

Optionally, the center of the locking ring and the center of the roller are on the same horizontal line, and the outer diameter of the locking ring is not smaller than the diameter of the roller.

By adopting the technical scheme, after the heat exchanger body is moved to a proper position, the roller can be separated from the ground when the ratchet on the locking ring is abutted against the ground in the process of adjusting the locking ring, so that the stability of the heat exchanger body is further improved, and the heat exchanger body is not easy to move.

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

1. the heat preservation layer can play a role in heat preservation, and is arranged between the heat exchanger body and the protective shell, so that heat loss in the heat exchanger body can be reduced, the heat exchange effect can be improved, and the problem that part of heat in the heat exchanger body can be emitted through the shell to influence the heat exchange effect is solved;

2. the user can dismantle the access cover regularly, inspect the heat-insulating layer through the access hole, so as to determine whether the heat-insulating layer needs to be replaced; when the heat preservation layer is replaced, the heat preservation layer is detached from the heat exchanger body, the heat preservation layer is taken out through the access hole, and then a new heat preservation layer is installed on the heat exchanger body through the access hole, so that the heat preservation layer is replaced smoothly, and the heat preservation effect of the heat preservation layer is ensured;

3. the user can change single heat preservation piece according to the demand when the inspection heat preservation, needn't change whole heat preservation, has saved the replacement expense on the one hand, and on the other hand, material saving can not cause the waste of material.

Drawings

Fig. 1 is a schematic structural diagram for embodying a shell and tube heat exchanger in an embodiment of the present application.

Fig. 2 is a schematic structural diagram for showing a positional relationship between the roller and the locking assembly in the embodiment of the present application.

Fig. 3 is a schematic structural diagram for showing a positional relationship between the heat insulating block and the heat exchanger body in the embodiment of the present application.

Fig. 4 is an enlarged view of a portion a of fig. 3 for showing a connection relationship between the stopper piece and the T-piece.

Fig. 5 is a schematic structural diagram for embodying the locking assembly in the embodiment of the present application.

Description of reference numerals:

1. a heat exchanger body; 2. a protective shell; 3. a heat preservation block; 4. an annular mounting frame; 5. a T-shaped piece; 6. a stopper piece; 7. a spring; 8. mounting grooves; 9. a ball bearing; 10. an access cover; 11. a support; 12. locking a ring; 13. a ratchet; 14. a pawl; 15. a connecting shaft; 16. a linkage rod; 17. a notch; 18. a connecting rod; 19. a torsion spring; 20. a roller; 21. rotating the rod; 22. a torsion spring.

Detailed Description

The embodiment of the application discloses shell and tube heat exchanger. Referring to fig. 1, the shell and tube heat exchanger includes a heat exchanger body 1, and a heat preservation layer and a protective shell 2 are connected to the heat exchanger body 1. The heat preservation is located between protecting crust 2 and heat exchanger body 1.

Referring to fig. 2 and 3, be connected with annular mounting bracket 4 through the bearing rotation on the heat exchanger body 1, the heat preservation includes a plurality of heat preservation piece 3, heat preservation piece 3 is the heat preservation cotton, heat preservation piece 3 can be dismantled with annular mounting bracket 4 and be connected, heat preservation piece 3 uses the central line of annular mounting bracket 4 to be the annular array as the center, fixedly connected with T shape piece 5 on the annular mounting bracket 4, the length direction of T shape piece 5 is the same with the length direction of annular mounting bracket 4, the vertical part of T shape piece 5 links to each other with annular mounting bracket 4, the both sides of heat preservation piece 3 are located between the horizontal part of T shape piece 5 and annular mounting bracket 4.

Referring to fig. 2 and 4, a stop piece 6 is connected to the T-shaped piece 5 in a sliding manner, a spring 7 is connected between the stop piece 6 and the T-shaped piece 5, specifically, a mounting groove 8 is formed in the T-shaped piece 5, one side of the stop piece 6 is located in the mounting groove 8 and is in sliding fit with the mounting groove 8, one end of the spring 7 is connected with the bottom of the mounting groove 8, the other end of the spring is connected with the stop piece 6, the annular mounting frame 4, the T-shaped piece 5, the heat preservation block 3 and the stop piece 6 are located in the protective shell 2, the stop piece 6 abuts against the inner wall of the protective shell 2 through a ball 9, the ball 9 is arranged on the stop piece 6, the ball 9 abuts against the inner wall of the protective shell 2, and when the stop piece 6 is located in the protective shell 2, the spring 7 is compressed.

Referring to fig. 2 and 4, the protective shell 2 is provided with an access opening and an access cover 10 for shielding the access opening, the access cover 10 is detachably connected with the protective shell 2 through a screw, a ball 9 on a stop plate 6 at the access opening in the protective shell 2 butts against the access cover 10, and when one stop plate 6 butts against the side wall of the access opening, the stop plate 6 adjacent to the stop plate 6 butts against the other side wall of the access opening.

Referring to fig. 1, 2 and 5, a support 11 is connected to a heat exchanger body 1, a roller 20 and a locking assembly are connected to the support 11, the roller 20 and the locking assembly are located at two opposite sides of the support 11, the roller 20 is rotatably connected to the support 11 through a rotating rod 21, the rotating rod 21 is rotatably connected to the support 11, the roller 20 is arranged on the rotating rod 21, the locking assembly includes a locking ring 12, a ratchet 13 and a pawl 14, the locking ring 12 is rotatably connected to the support 11, specifically, a connecting shaft 15 is rotatably connected to the support 11, a side wall of the connecting shaft 15 is connected to an inner side wall of the locking ring 12 through a linkage rod 16, a center line of the locking ring 12 coincides with a center line of the connecting shaft 15, a center of the locking ring 12 and a center of the roller 20 are on the same horizontal line, an outer diameter of the locking ring 12 is not smaller than a diameter of the roller 20, in this embodiment, an outer diameter of the locking ring 12 is larger than a diameter of the roller 20, the locking ring 12 is provided with a notch 17, the ratchet 13 is arranged on the locking ring 12, the support 11 is connected with a connecting rod 18, the pawl 14 is rotatably connected with the connecting rod 18, the connecting rod 18 is sleeved with a torsion spring 22, one end of the torsion spring 22 is connected with the support 11, the other end of the torsion spring is connected with the pawl 14, the pawl 14 is clamped on the ratchet 13, the directions of the ratchet 13 on the adjacent locking ring 12 on the same side of the heat exchanger body 1 are opposite, and when the notch 17 on the locking ring 12 faces the ground, gaps are reserved between the notch 17 and the ratchet 13 and the ground.

The implementation principle of a shell and tube heat exchanger of the embodiment of the application is as follows: install the heat preservation in heat exchanger body 1 outside, can play the heat preservation effect to heat exchanger body 1, reduce the heat loss of heat exchanger body 1 inside, make the heat mainly used heat transfer in the heat exchanger body 1, help improving the heat transfer effect, improved the problem that partial heat in the heat exchanger body 1 can distribute out through the casing, influences the heat transfer effect.

The staff can fix a position and inspect insulating block 3 in protective housing 2, when the inspection, dismantle access cover 10 from protective housing 2, stir insulating block 3, annular mounting bracket 4 takes place to rotate, when the catch 6 removed access opening department, catch 6 pops out from access opening department under spring 7's spring action, catch 6 contradicts on two relative lateral walls on the access opening, thereby it is spacing to annular mounting bracket 4, avoid annular mounting bracket 4 to rotate, so that the staff inspects insulating block 3, after the inspection, to the application of force of catch 6, press back protective housing 2 with catch 6, continue to rotate annular mounting bracket 4, so that inspect next insulating block 3, repeat above-mentioned operation, until all inspections to insulating block 3.

In the checking process, if the heat preservation block 3 needs to be replaced, the two sides of the heat preservation block 3 needing to be replaced are taken out from the space between the horizontal part of the T-shaped sheet 5 and the annular mounting frame 4 through the access hole, and then the two sides of the new heat preservation block 3 are inserted into the space between the horizontal part of the T-shaped sheet 5 and the annular mounting frame 4, so that the heat preservation block 3 is replaced.

When the heat exchanger body 1 needs to be moved, the locking ring 12 is adjusted to enable the notch 17 on the locking ring 12 to face the ground, force is applied to the heat exchanger body 1, the roller 20 rolls, and therefore the purpose of moving the heat exchanger body 1 is achieved.

Claims

1. A shell and tube heat exchanger, includes heat exchanger body (1), its characterized in that: the heat exchanger is characterized in that a heat insulation layer and a protective shell (2) are arranged on the heat exchanger body (1), and the heat insulation layer is located between the protective shell (2) and the heat exchanger body (1).

2. The shell and tube heat exchanger of claim 1, wherein: the heat preservation with the connection can be dismantled in heat exchanger body (1), be equipped with the access hole on protective housing (2) and be used for sheltering from access cover (10) of access hole, access cover (10) with protective housing (2) can be dismantled and be connected.

3. The shell and tube heat exchanger of claim 2, wherein: the heat preservation layer comprises a plurality of heat preservation blocks (3), and the heat preservation blocks (3) are detachably connected with the heat exchanger body (1).

4. The shell and tube heat exchanger of claim 3, wherein: the heat exchanger body (1) is connected with an annular mounting frame (4) in a rotating mode, and the heat preservation block (3) is detachably connected with the annular mounting frame (4).

5. The shell and tube heat exchanger of claim 4, wherein: be equipped with T shape piece (5) on annular mounting bracket (4), the length direction of T shape piece (5) with the length direction of annular mounting bracket (4) is the same, the vertical part of T shape piece (5) with annular mounting bracket (4) link to each other, the both sides of heat insulating block (3) are located the horizontal part of T shape piece (5) with between annular mounting bracket (4), heat insulating block (3) are the heat preservation cotton.

6. The shell and tube heat exchanger of claim 5, wherein: sliding connection has stop plate (6) on T shape piece (5), stop plate (6) with be connected with spring (7) between T shape piece (5), stop plate (6) are located in protecting crust (2) and contradict protecting crust (2) inner wall, just stop plate (6) are located when protecting crust (2) are interior, spring (7) are compressed.

7. The shell and tube heat exchanger of claim 6, wherein: stop plate (6) are contradicted through ball (9) protective housing (2) inner wall, ball (9) set up on stop plate (6), ball (9) are contradicted protective housing (2) inner wall.

8. The shell and tube heat exchanger of claim 1, wherein: the heat exchanger comprises a heat exchanger body (1), and is characterized in that a support (11) is connected onto the heat exchanger body (1), a roller (20) and a locking assembly are connected onto the support (11), the roller (20) is rotatably connected onto the support (11), the locking assembly comprises a locking ring (12), ratchets (13) and pawls (14), the locking ring (12) is rotatably connected onto the support (11), notches (17) are arranged on the locking ring (12), the ratchets (13) are arranged on the locking ring (12), connecting rods (18) are arranged on the support (11), the pawls (14) are rotatably connected with the connecting rods (18), torsion springs (22) are sleeved on the connecting rods (18), one ends of the torsion springs (22) are connected with the support (11), the other ends of the torsion springs are connected with the pawls (14), and the pawls (14) are clamped onto the ratchets (13), the ratchet teeth (13) on the adjacent locking rings (12) on the same side of the heat exchanger body (1) are opposite in direction, and when the notch (17) on the locking ring (12) faces the ground, a gap is reserved between the notch (17) and the ratchet teeth (13) and the ground.

9. The shell and tube heat exchanger of claim 7, wherein: the center of the locking ring (12) and the center of the roller (20) are on the same horizontal line, and the outer diameter of the locking ring (12) is not less than the diameter of the roller (20).