CN216790962U - Tube side inlet structure suitable for high-temperature working condition - Google Patents
Tube side inlet structure suitable for high-temperature working condition Download PDFInfo
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- CN216790962U CN216790962U CN202220090102.7U CN202220090102U CN216790962U CN 216790962 U CN216790962 U CN 216790962U CN 202220090102 U CN202220090102 U CN 202220090102U CN 216790962 U CN216790962 U CN 216790962U
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Abstract
The utility model relates to a tube side inlet structure suitable for high-temperature working conditions, which comprises: a tube plate, a plurality of heat exchange tubes, a flow guide part, a partition plate, a sleeve, an inner lining tube, a ceramic fiber felt, a pressing plate and a cone part, the tube pass inlet end of the heat exchange tube is welded in a tube hole of the tube plate, the flow guide piece, the partition plate and the cone piece are connected through a plurality of first fixing pieces, the ceramic fiber felt and the pressing plate are clamped between the partition plate and the cone piece, the partition plate is provided with a sleeve through hole matched with the sleeve, the sleeve is accommodated in the sleeve through hole of the partition plate, one free tail end of the sleeve is sleeved on the tube pass inlet end of the heat exchange tube, the other free tail end of the sleeve is provided with a boss abutting against the partition plate, the lining pipe is arranged in the sleeve and the tube pass inlet end of the heat exchange tube, ceramic fiber paper is arranged between the sleeve and the tube pass inlet end of the heat exchange tube and the lining tube, so that the welding part of the tube plate and the heat exchange tube can be prevented from cracking.
Description
[ technical field ] A
The utility model relates to the field of heat exchangers, in particular to a tube side inlet structure suitable for high-temperature working conditions.
[ background ] A method for producing a semiconductor device
The heat exchanger is a device for transferring heat between materials between two or more fluids with different temperatures, and is a device for transferring heat from the fluid with higher temperature to the fluid with lower temperature to make the temperature of the fluid reach the index specified by the process so as to meet the requirements of process conditions, and is also one of main devices for improving the utilization rate of energy. The heat exchanger industry relates to more than 30 industries such as heating ventilation, pressure vessels, reclaimed water treatment equipment, chemical industry, petroleum and the like.
Please refer to the chinese patent No. 201811038890.X, which discloses a U-shaped heat exchange tube type heat exchanger, comprising: the heat exchange tube comprises a barrel, a plurality of groups of heat exchange tubes and tube plates, wherein the heat exchange tubes and the tube plates are arranged in the barrel, the tube plates support the heat exchange tubes, tube holes for accommodating the heat exchange tubes are formed in the tube plates, tube pass inlet ends of the heat exchange tubes are welded in the tube holes of the tube plates, and the structure has the following defects that: because the temperature is higher before the heat exchange medium does not exchange heat, and the tube pass inlet end of the heat exchange tube is directly welded in the tube hole of the tube plate, when the high-temperature heat exchange medium flows through the tube pass inlet end of the heat exchange tube, high temperature can be transmitted to the heat exchange tube and the tube plate, so that cracks are generated at the welding position of the heat exchange tube and the tube plate, and the service life of the heat exchanger is shortened.
In addition, in order to separate a tube side inlet from a tube side outlet, the structure is provided with a baffle plate in the center of the right end of the tube plate, a heat exchange medium enters the heat exchange tube from the lower end of the baffle plate, the heat exchange medium is discharged from the upper end of the baffle plate after heat exchange is carried out in the heat exchange tube, and the heat exchange medium can also flow through the baffle plate and the barrel before heat exchange, so that high temperature can be transferred to the baffle plate and the barrel, and the baffle plate and the barrel are damaged.
Therefore, there is a need to provide a tube side inlet structure suitable for high temperature conditions to solve the above technical problems.
[ Utility model ] content
In order to solve the problems, the utility model aims to provide a tube side inlet structure which can prevent the welding part of a tube plate and a heat exchange tube from cracking and is suitable for high-temperature working conditions.
In order to achieve the purpose, the utility model adopts the technical scheme that: a tube-side inlet structure adapted for high temperature conditions, comprising: the heat exchange tube comprises a tube plate, a plurality of heat exchange tubes, a flow guide piece, a partition plate, a sleeve, an inner lining tube, a ceramic fiber felt, a pressing plate and a cone piece, wherein the tube plate is provided with tube holes matched with the heat exchange tubes, the tube pass inlet ends of the heat exchange tubes are welded in the tube holes of the tube plate, the flow guide piece is welded with the tube plate, the flow guide piece, the partition plate and the cone piece are connected through a plurality of first fixing pieces, the ceramic fiber felt and the pressing plate are clamped between the partition plate and the cone piece, the partition plate is provided with a sleeve perforation matched with the sleeve, the sleeve is accommodated in the sleeve perforation of the partition plate, one free end of the sleeve is sleeved on the tube pass inlet end of the heat exchange tubes, a sealing ring is arranged between the free end of the sleeve and the tube pass inlet end of the heat exchange tubes, the other free end of the sleeve is provided with a boss abutted to the partition plate, and the inner lining tube is arranged in the tube pass inlet ends of the sleeve and the heat exchange tubes, ceramic fiber paper is arranged between the tube pass inlet ends of the sleeve and the heat exchange tube and the lining tube.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the guide member includes: the guide cylinder is welded with the first connecting flange and the tube plate respectively, the guide plate is connected with the first connecting flange through a plurality of second fixing pieces, and a space is arranged between the guide plate and the tube plate.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the free end welding of wide mouthful of awl spare has the second flange, connect through bolt and nut between the first flange of water conservancy diversion spare, division board and the second flange three of awl spare.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the free tail end of the lining pipe extends out of the pressing plate.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the lining pipe comprises a first section, a second section and a third section arranged between the first section and the second section, the diameters of the first section and the second section are equal, the diameter of the third section is smaller than the diameters of the first section and the second section, and the ceramic fiber paper is coated on the third section.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the free tail end of the tube pass inlet end of the heat exchange tube extends out of the tube plate.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the sealing ring is a graphite gasket.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: and the free end of the sleeve matched with the tube pass inlet end of the heat exchange tube is provided with a guide inner conical surface.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the cone piece is connected with the heat exchange medium inlet pipe through a flexible connecting piece.
Preferably, the tube side inlet structure suitable for the high-temperature working condition is further configured as follows: the heat exchange tube is a U-shaped heat exchange tube.
Compared with the prior art, the utility model has the following beneficial effects: the utility model sets inner lining pipes in the sleeve and the tube pass inlet end of the heat exchange tube, and separates the sleeve and the tube pass inlet end of the heat exchange tube from the inner lining pipes through ceramic fiber paper, the heat exchange medium flows into the heat exchange tube through the inner lining pipes, thereby preventing the heat exchange medium from transmitting high temperature to the tube pass inlet end of the heat exchange tube, protecting the welding part of the tube plate and the heat exchange tube, prolonging the service life.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a tube side inlet structure according to the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of the tube side inlet structure installed in a heat exchanger according to the present invention.
In fig. 1 to 3: 1. the heat exchange tube comprises a tube plate, 10 pipe holes, 2 heat exchange tubes, 20 pipe pass inlet ends, 21 pipe pass outlet ends, 3 flow guide pieces, 30 flow guide cylinders, 31 first connecting flanges, 32 flow guide plates, 33 bolt nuts, 34, intervals, 4 partition plates, 40 casing perforation, 5 casing pipes, 50 sealing rings, 51 guide inner conical surfaces, 52 bosses, 6 lining tubes, 60 first sections, 61 second sections, 62 third sections, 63 ceramic fiber paper, 7 ceramic fiber felts, 8 pressing plates, 9 cone pieces, 90 second connecting flanges, 91 bolt nuts, 92 flexible connecting pieces, 93 heat exchange medium inlet tubes, 94 heat exchange medium outlet tubes, 95 and a cylinder body.
[ detailed description ] embodiments
The tube side inlet structure suitable for high temperature conditions according to the present invention is further described in detail by the following embodiments.
Referring to fig. 1 to 3, a tube side inlet structure suitable for high temperature conditions includes: the heat exchange tube comprises a tube plate 1, a plurality of U-shaped heat exchange tubes 2, a flow guide piece 3, a partition plate 4, a sleeve 5, an inner lining tube 6, a ceramic fiber felt 7, a pressing plate 8 and a cone piece 9, wherein the tube plate 1 is provided with a tube hole 10 matched with the heat exchange tubes 2, tube pass inlet ends 20 of the heat exchange tubes 2 are welded in the tube hole 10 of the tube plate 1, and free tail ends of the tube pass inlet ends 20 of the heat exchange tubes 2 extend out of the tube plate 1.
The flow guide 3 includes: the guide cylinder 30 is respectively welded with the first connecting flange 31 and the tube plate 1, the guide plate 32 is connected with the first connecting flange 31 through a plurality of bolts and nuts 33, and a space 34 is formed between the guide plate 32 and the tube plate 1. The welding of the free end of wide mouth of awl spare 9 has second flange 90, connect through a plurality of bolt and nut 91 between the first flange 31 of water conservancy diversion spare 3, division board 4 and the second flange 90 three of awl spare 9, awl spare 9 is continuous with heat transfer medium import pipe 93 through flexible connecting piece 92.
Ceramic fiber felt 7 and the centre gripping of clamp plate 8 are between division board 4 and cone 9, division board 4 is equipped with the sleeve pipe perforation 40 with sleeve pipe 5 matched with, sleeve pipe 5 is acceptd in the sleeve pipe perforation 40 of division board 4, the free end cover of the right-hand member of sleeve pipe 5 is equipped with sealing washer 50 on locating the tube side entrance point 20 of heat exchange tube 2 and between the two, in this embodiment, sealing washer 50 is the graphite packing ring, and the quantity of graphite packing ring is two, the free end of the right-hand member of sleeve pipe 5 is equipped with direction inner cone 51 to can make things convenient for sleeve pipe 5 cover to locate on the tube side entrance point 20 of heat exchange tube 2. The free tail end of the left end of the sleeve 5 is provided with a boss 52 abutted against the partition plate 4, the lining tube 6 is arranged in the sleeve 5 and the tube pass inlet end 20 of the heat exchange tube 2, the lining tube 6 comprises a first section 60, a second section 61 and a third section 62 arranged between the first section 60 and the second section 61, the diameters of the first section 60 and the second section 61 are equal, the diameter of the third section 62 is smaller than the diameters of the first section 60 and the second section 61, and the third section 62 is coated with ceramic fiber paper 63, so that the lining tube 6, the sleeve 5 and the tube pass inlet end 20 of the heat exchange tube 2 can be insulated.
The assembly sequence of the tube pass inlet structure is as follows: firstly welding the tube pass inlet end 20 of a U-shaped heat exchange tube 2 in a tube hole of a tube plate 1, then welding a guide cylinder 30 of a guide piece 3 on the tube plate 1, then sleeving a graphite gasket on a tube head of the tube pass inlet end 20 of the heat exchange tube 2, then inserting a sleeve 5 into a sleeve through hole 40 of a partition plate 4, sleeving the right end of the inserted sleeve 5 on the tube pass inlet end 20 of the heat exchange tube 2, abutting a boss 52 at the left end of the sleeve 5 against the side surface of the partition plate 4, then winding ceramic fiber paper 63 on a third section 62 of an inner lining tube 6, then inserting the inner lining tube 6 wound with the ceramic fiber paper 63 into the sleeve 5 and the tube pass inlet end 20 of the heat exchange tube 2, then installing a ceramic fiber felt 7 and a pressing plate 8, extending the free tail end of the inner lining tube 6 out of the pressing plate 8, and finally fastening a first connecting flange 31 of the guide piece 3, the partition plate 4 and a second connecting flange 90 of a cone piece 9 through bolts and nuts 91, and the ceramic fiber mat 7 and the press plate 8 are sandwiched therebetween.
The heat exchange principle of the tube pass inlet structure after the tube pass inlet structure is arranged in the heat exchanger is as follows: the heat exchange medium enters the cone member 9 from the heat exchange medium inlet pipe 93 above, the heat exchange medium in the cone member 9 enters the U-shaped heat exchange pipe 2 through the lining pipe 6, and because the lining pipe 6 is separated from the sleeve 5 and the tube pass inlet end 20 of the heat exchange pipe 2 through the ceramic fiber paper 63, when the high-temperature heat exchange medium flows through the lining pipe 6, the heat cannot be greatly transferred to the sleeve 5 and the tube pass inlet end 20 of the heat exchange pipe 2, so that the welding part of the heat exchange pipe 2 and the tube plate 1 is protected, and the service life of the heat exchanger is prolonged, in the utility model, the tube pass inlet end 20 and the tube pass outlet end 21 of the heat exchanger are separated through the guide cylinder 30, the heat exchange medium enters the heat exchange pipe 2 and exchanges heat with the shell pass medium, and then comes out from the tube pass outlet end 21 of the heat exchange pipe 2, at the moment, because the high-temperature heat exchange medium is cooled through heat exchange, the tube pass outlet end 21 of the heat exchange pipe 2 adopts a conventional structure, the heat exchange medium coming out from the tube side outlet end 21 of the heat exchange tube 2 returns to the space outside the conical member 9 through the space 34 between the guide plate 32 and the tube plate 1 and goes out through the heat exchange medium outlet pipe 94 below, so that the structure of the heat exchanger is optimized.
In summary, the inner lining tube 6 is arranged in the sleeve 5 and the tube pass inlet end 20 of the heat exchange tube 2, the sleeve 5, the tube pass inlet end 20 of the heat exchange tube 2 and the inner lining tube 6 are separated by the ceramic fiber paper 63, and a heat exchange medium flows into the heat exchange tube 2 through the inner lining tube 6, so that the heat exchange medium is prevented from transmitting high temperature to the tube pass inlet end 20 of the heat exchange tube 2, the welding position of the tube plate 1 and the heat exchange tube 2 is protected, the service life is prolonged, in addition, the cone piece 9 is connected with the heat exchange medium inlet tube 93 through the flexible connecting piece 92, the heat exchange medium directly enters the inner lining tube 6 through the cone piece 9, the high-temperature heat exchange medium is prevented from contacting the cylinder 95, and the cylinder 95 is protected.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (10)
1. A tube side inlet structure suitable for high temperature working conditions, comprising: the heat exchange tube comprises a tube plate, a plurality of heat exchange tubes, a flow guide piece, a partition plate, a sleeve, an inner lining tube, a ceramic fiber felt, a pressing plate and a cone piece, wherein the tube plate is provided with tube holes matched with the heat exchange tubes, the tube pass inlet ends of the heat exchange tubes are welded in the tube holes of the tube plate, the flow guide piece is welded with the tube plate, the flow guide piece, the partition plate and the cone piece are connected through a plurality of first fixing pieces, the ceramic fiber felt and the pressing plate are clamped between the partition plate and the cone piece, the partition plate is provided with a sleeve perforation matched with the sleeve, the sleeve is accommodated in the sleeve perforation of the partition plate, one free end of the sleeve is sleeved on the tube pass inlet end of the heat exchange tubes, a sealing ring is arranged between the free end of the sleeve and the tube pass inlet end of the heat exchange tubes, the other free end of the sleeve is provided with a boss abutted to the partition plate, and the inner lining tube is arranged in the tube pass inlet ends of the sleeve and the heat exchange tubes, ceramic fiber paper is arranged between the tube pass inlet ends of the sleeve and the heat exchange tube and the lining tube.
2. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the guide member includes: the guide cylinder is welded with the first connecting flange and the tube plate respectively, the guide plate is connected with the first connecting flange through a plurality of second fixing pieces, and a space is arranged between the guide plate and the tube plate.
3. The tube-side inlet structure suitable for high-temperature conditions of claim 2, wherein: the free end welding of wide mouthful of awl spare has the second flange, connect through bolt and nut between the first flange of water conservancy diversion spare, division board and the second flange three of awl spare.
4. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the free tail end of the lining pipe extends out of the pressing plate.
5. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the lining pipe comprises a first section, a second section and a third section arranged between the first section and the second section, the diameters of the first section and the second section are equal, the diameter of the third section is smaller than the diameters of the first section and the second section, and the ceramic fiber paper is coated on the third section.
6. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the free tail end of the tube pass inlet end of the heat exchange tube extends out of the tube plate.
7. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the sealing ring is a graphite gasket.
8. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: and the free end of the sleeve matched with the tube pass inlet end of the heat exchange tube is provided with a guide inner conical surface.
9. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the cone piece is connected with the heat exchange medium inlet pipe through a flexible connecting piece.
10. The tube-side inlet structure suitable for high-temperature conditions of claim 1, wherein: the heat exchange tube is a U-shaped heat exchange tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220090102.7U CN216790962U (en) | 2022-01-14 | 2022-01-14 | Tube side inlet structure suitable for high-temperature working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220090102.7U CN216790962U (en) | 2022-01-14 | 2022-01-14 | Tube side inlet structure suitable for high-temperature working condition |
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| Publication Number | Publication Date |
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| CN216790962U true CN216790962U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220090102.7U Active CN216790962U (en) | 2022-01-14 | 2022-01-14 | Tube side inlet structure suitable for high-temperature working condition |
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| CN (1) | CN216790962U (en) |
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