CN216448674U

CN216448674U - Double-tube-plate sealed silicon carbide tube-in-tube heat exchanger with long service life

Info

Publication number: CN216448674U
Application number: CN202123018131.7U
Authority: CN
Inventors: 陈计川
Original assignee: Jiangyin Rainbow Special Heat Exchange Equipment Co ltd
Current assignee: Jiangyin Rainbow Special Heat Exchange Equipment Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-06
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a double-tube-plate sealed silicon carbide tube-in-tube heat exchanger with long service life, which comprises a shell, wherein tube plates are fixedly connected to the upper side and the lower side of the shell, an anti-corrosion ring is fixedly connected to one side of the tube plate, which is far away from the shell, a tube cover is fixedly connected to one side of the anti-corrosion ring, which is far away from the tube plate, a magnesium rod is fixedly connected to the inner part of the anti-corrosion ring through a fixing mechanism, so that the device can rapidly mount and dismount the magnesium rod through the fixing mechanism, thereby greatly accelerating the replacement and maintenance efficiency of the magnesium rod by an operator, the magnesium rod can be used as an anode, the tube plate and the inner wall of the tube cover can be used as a cathode, water in the inner container of the tube cover can be used as a dielectric medium, the anti-corrosion ring integrally forms a structure similar to an original battery, thereby the tube plate and the inner wall of the tube cover can be protected from corrosion and rust through a mode of sacrificing the anode magnesium rod, thereby greatly improving the corrosion resistance of the device and greatly prolonging the service life of the device.

Description

Double-tube-plate sealed silicon carbide tube-in-tube heat exchanger with long service life

Technical Field

The utility model belongs to the technical field of heat exchangers, and particularly relates to a double-tube-plate sealed silicon carbide tube-type heat exchanger with long service life.

Background

The silicon carbide heat exchanger is a novel heat exchanger which uses silicon carbide ceramic material as heat transfer medium. The silicon carbide ceramic has the excellent characteristics of corrosion resistance, high temperature resistance, high thermal conductivity, high hardness, wear resistance and the like. The material has excellent performances of high temperature resistance and thermal shock resistance, and cracks do not appear after the air cooling is carried out for more than 50 times from 1000 ℃ to room temperature; the heat conductivity coefficient is equal to that of stainless steel; has good corrosion resistance in oxidizing and acidic media. In order to solve the problem that the existing silicon carbide heat exchanger can corrode the inner walls of a tube plate and a tube cover to a certain extent when in use and can cause the leakage phenomenon of the tube plate or the tube cover after long-term use, thereby seriously affecting the service life of the silicon carbide heat exchanger, Chinese patent with patent application No. 201821634444.0 discloses an enamel tube plate type silicon carbide heat exchanger which is arranged in a through hole on the tube plate through a first sealing element, a second sealing element is arranged between the tube plate and a shell, an anode anti-corrosion part is arranged between the tube plate and an end socket, a second sealing part is arranged between the anode anti-corrosion part and the end socket, the end socket fixedly penetrates through the shell through a bolt, and the bolt penetrates through the tube plate and the anode anti-corrosion part, thereby providing the enamel tube plate type silicon carbide heat exchanger which has safe structure, leakage prevention, rust prevention and long service life, however, the above patent is not easy to install and detach the magnesium rod when in use, so that an operator is not easy to replace the magnesium rod, and the silicon carbide tube inside the device is not strong in sealing performance when in use, and therefore, a double-tube-plate sealed silicon carbide tube-in-tube heat exchanger with long service life is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-tube-plate sealed silicon carbide tube-and-tube heat exchanger with long service life, so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: long service life's sealed carborundum tubulation heat exchanger of double tube sheet, which comprises an outer shell, the equal fixedly connected with tube sheet in upper and lower both sides of shell, the anticorrosive ring of one side fixedly connected with of shell is kept away from to the tube sheet, the anticorrosive ring is kept away from one side of tube sheet and is passed through ring flange fixedly connected with tube cap, the anticorrosive ring is inside through fixed establishment fixedly connected with magnesium stick, a plurality of mounting hole has been seted up to the inside of tube sheet, the mounting hole is inside through seal assembly fixedly connected with carborundum pipe, the both sides difference fixedly connected with feed inlet and the discharge gate of shell.

Preferably, fixed establishment including install at the fixed plate of anticorrosive ring surface and with magnesium stick fixed connection's connecting plate, the spout has been seted up to the inside of fixed plate, the spout is provided with two altogether, its two the opening and locking hole have been seted up respectively to the both ends of spout, the equal fixedly connected with elasticity telescopic link in both sides of connecting plate to operating personnel's change and the efficiency of examining the magnesium stick have been improved greatly.

Preferably, the sealing assembly comprises a sealing ring movably connected with the silicon carbide pipe and a clamping groove formed in the bottom of the inner cavity of the mounting hole, a clamping block is fixedly connected to the bottom of the sealing ring, and a fastening nut is connected to the top of the sealing ring through threads, so that the sealing performance of the device is greatly improved.

Preferably, the cross section of the sealing ring is of an isosceles trapezoid wedge-shaped ring structure, and the inner cross section of the mounting hole is of a wedge-shaped groove structure matched with the sealing ring, so that the sealing performance of the device is further improved.

Preferably, the outer surface of the silicon carbide pipe inside the mounting hole is fixedly connected with a sealing ring, and the sealing ring is filled with an air-tight material, so that the sealing effect of the device is greatly enhanced.

Preferably, one side of the shell is fixedly connected with a supporting leg, and the other end of the supporting leg is fixedly connected with an anti-skidding sleeve, so that the stability of the device is greatly improved.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the anti-corrosion ring, the fixing plate, the connecting plate, the magnesium rod, the opening, the locking hole, the elastic telescopic rod and the sliding chute are arranged, so that the device can be used for rapidly mounting and dismounting the magnesium rod through the fixing mechanism, the replacement and maintenance efficiency of an operator on the magnesium rod is greatly accelerated, the magnesium rod can be used as an anode, the tube plate and the inner wall of the tube cover are used as cathodes, and water in the inner container of the tube cover is used as a dielectric medium, so that the anti-corrosion ring integrally forms a structure similar to a primary battery, the tube plate and the inner wall of the tube cover are protected from corrosion and corrosion in a mode of sacrificing the anode magnesium rod, the anti-corrosion performance of the device is greatly improved, and the service life of the device is greatly prolonged;

2. the device is further provided with the mounting hole, the sealing ring, the clamping groove, the clamping block, the sealing ring and the fastening nut, so that the silicon carbide tube and the mounting hole can be sealed through the sealing assembly, the sealing performance between the mounting hole and the silicon carbide tube is higher, the medium in the shell is prevented from leaking, and the use safety of the device is finally greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front view of the present invention in its entirety;

FIG. 2 is a top view of the corrosion barrier ring of the present invention;

FIG. 3 is a plan view of a connecting portion of the fixing plate and the connecting plate according to the present invention;

FIG. 4 is a schematic view showing the internal structure of the shell-and-tube plate joint of the present invention;

FIG. 5 is an enlarged view of the utility model at A in FIG. 4;

in the figure: 1. a housing; 2. a tube sheet; 3. an anticorrosion ring; 4. a flange plate; 5. a tube cover; 6. a feed inlet; 7. a discharge port; 8. a fixing plate; 9. an opening; 10. a locking hole; 11. a connecting plate; 12. an elastic telescopic rod; 13. a chute; 14. a magnesium rod; 15. a silicon carbide tube; 16. mounting holes; 17. sealing the circular ring; 18. a card slot; 19. a clamping block; 20. a seal ring; 21. fastening a nut; 22. and (7) supporting legs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides a double tube plate sealed silicon carbide tube heat exchanger with long service life, which comprises a shell 1, wherein tube plates 2 are fixedly connected to the upper side and the lower side of the shell 1, an anti-corrosion ring 3 is fixedly connected to one side of the tube plate 2 away from the shell 1, a tube cover 5 is fixedly connected to one side of the anti-corrosion ring 3 away from the tube plate 2 through a flange plate 4, a magnesium rod 14 is fixedly connected to the inside of the anti-corrosion ring 3 through a fixing mechanism, the fixing mechanism comprises a fixing plate 8 mounted on the outer surface of the anti-corrosion ring 3 and a connecting plate 11 fixedly connected with the magnesium rod 14, a sliding groove 13 is formed in the fixing plate 8, two sliding grooves 13 are formed in the fixing plate 13, an opening 9 and a locking hole 10 are respectively formed in two ends of the two sliding grooves 13, elastic telescopic rods 12 are fixedly connected to two sides of the connecting plate 11, the fixing mechanism can be used for rapidly fixing the magnesium rod 14, so that the mounting and dismounting efficiency of an operator on the magnesium rod 14 is greatly accelerated, the tube plate 2 is internally provided with a plurality of mounting holes 16, the inside of each mounting hole 16 is fixedly connected with a silicon carbide tube 15 through a sealing assembly, each sealing assembly comprises a sealing ring 17 movably connected with the silicon carbide tube 15 and a clamping groove 18 formed at the bottom of the inner cavity of the corresponding mounting hole 16, the bottom of each sealing ring 17 is fixedly connected with a clamping block 19, the top of each sealing ring 17 is connected with a fastening nut 21 through threads, the cross section of each sealing ring 17 is of an isosceles trapezoid wedge-shaped ring structure, the cross section of the inside of each mounting hole 16 is of a wedge-shaped groove structure matched with the corresponding sealing ring 17, the wedge-shaped annular sealing rings 17 are connected with the wedge-shaped groove-shaped mounting holes 16 in a matched mode, so that the sealing rings 17 and the mounting holes 16 can be fixed more tightly, and the device can effectively avoid leakage of media inside the shell 1 by using the sealing effect of the sealing assemblies, and further greatly enhance the sealing effect of the device, the carborundum pipe 15 is located inside outer fixed surface of mounting hole 16 and is connected with sealing washer 20, the inside of sealing washer 20 is filled with the gas tightness material, utilize the inside gas tightness material of sealing washer 20 can carry out effectual sealed to mounting hole 16, thereby the sealed subassembly of cooperation prevents that the inside medium of shell 1 from appearing the leakage phenomenon, the both sides difference fixedly connected with feed inlet 6 and the discharge gate 7 of shell 1, one side fixedly connected with landing leg 22 of shell 1, landing leg 22's other end fixedly connected with antiskid cover, utilize landing leg 22 to carry out the outrigger to shell 1, and utilize the frictional resistance of antiskid cover increase landing leg 22.

The working principle of the utility model is as follows: when the heat exchanger is used, an operator can firstly insert the silicon carbide tube 15 into the mounting hole 16, then sleeve the two ends of the silicon carbide tube 15 with the sealing rings 17, push the sealing rings 17 towards the inside of the tube plate 2 along the mounting hole 16, and enable the clamping blocks 19 at the bottom of the sealing rings 17 to be inserted into the clamping grooves at the bottom of the mounting hole 16, at the moment, the sealing rings 17 can completely seal the bottom of the mounting hole 16, so that the leakage phenomenon of a medium in the shell 1 can be avoided, then feed a raw material to be subjected to heat exchange into the silicon carbide tube 15 through the tube cover 5, when liquid is fed into the tube cover 5, the magnesium rod 14 can automatically become an anode, the metal on the inner walls of the tube plate 2 and the tube cover 5 can automatically become a cathode, and the liquid in the inner container of the tube cover 5 can automatically become a dielectric medium, so that a primary cell effect is formed, namely, the magnesium rod 14 can be continuously fused into the liquid, and the metal on the inner walls of the tube plate 2 and the tube cover 5 can not be corroded by the liquid, thereby very big improvement the corrosion protection nature of this device, and after magnesium stick 14 consumed to a certain amount, operating personnel can be through pressing elasticity telescopic link 12, make inside elasticity telescopic link 12 shrink advances spout 13, then operating personnel rotates connecting plate 11 again, make connecting plate 11 can drive elasticity telescopic link 12 and rotate along spout 13, after elasticity telescopic link 12 rotated to the position of opening 9, operating personnel can take off magnesium stick 14 from fixed plate 8 fast, also can be fast magnesium stick 14 and fixed plate 8 fixed connection once more utilizing above-mentioned principle, thereby very big change and the efficiency of check up of operating personnel to magnesium stick 14 of having accelerated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Long service life's double tube sheet seal carborundum shell and tube heat exchanger, including shell (1), its characterized in that: the equal fixedly connected with tube sheet (2) in upper and lower both sides of shell (1), one side fixedly connected with anticorrosive ring (3) of shell (1) are kept away from in tube sheet (2), ring flange (4) fixedly connected with tube cap (5) are passed through to one side that tube sheet (2) were kept away from in anticorrosive ring (3), a plurality of mounting hole (16) have been seted up to the inside of tube sheet (2) through fixed establishment fixedly connected with magnesium stick (14) in anticorrosive ring (3), seal assembly fixedly connected with carborundum pipe (15) are passed through to mounting hole (16) inside, the both sides difference fixedly connected with feed inlet (6) and discharge gate (7) of shell (1).

2. The long-life double tube sheet sealed silicon carbide tube array heat exchanger of claim 1, wherein: fixed establishment including install fixed plate (8) at anticorrosive ring (3) surface and with magnesium stick (14) fixed connection's connecting plate (11), spout (13) have been seted up to the inside of fixed plate (8), spout (13) are provided with two altogether, its two opening (9) and locking hole (10) have been seted up respectively to the both ends of spout (13), the equal fixedly connected with elasticity telescopic link (12) in both sides of connecting plate (11).

3. The long-life double tube sheet sealed silicon carbide tube array heat exchanger of claim 1, wherein: the sealing assembly comprises a sealing ring (17) movably connected with the silicon carbide pipe (15) and a clamping groove (18) formed in the bottom of an inner cavity of the mounting hole (16), a clamping block (19) is fixedly connected to the bottom of the sealing ring (17), and the top of the sealing ring (17) is connected with a fastening nut (21) through threads.

4. The long-life double tube sheet sealed silicon carbide tube array heat exchanger of claim 3, wherein: the cross section of the sealing circular ring (17) is an isosceles trapezoid wedge-shaped ring structure, and the inner cross section of the mounting hole (16) is a wedge-shaped groove structure matched with the sealing circular ring (17).

5. The long-life double tube sheet sealed silicon carbide tube array heat exchanger of claim 1, wherein: the outer surface of the silicon carbide tube (15) located inside the mounting hole (16) is fixedly connected with a sealing ring (20), and the inside of the sealing ring (20) is filled with an air-tight material.

6. The long-life double tube sheet sealed silicon carbide tube array heat exchanger of claim 1, wherein: one side of the shell (1) is fixedly connected with a supporting leg (22), and the other end of the supporting leg (22) is fixedly connected with an anti-skidding sleeve.