CN214065811U

CN214065811U - Novel high-efficient heat exchanger

Info

Publication number: CN214065811U
Application number: CN202023076828.5U
Authority: CN
Inventors: 桂国喜
Original assignee: Henan Aibang Technology Co ltd
Current assignee: Henan Aibang Technology Co ltd
Priority date: 2020-12-19
Filing date: 2020-12-19
Publication date: 2021-08-27
Anticipated expiration: 2030-12-19

Abstract

The utility model discloses a novel high-efficiency heat exchanger, which comprises a shell, a feeding cover and a discharging cover, wherein the upper end and the lower end of the outer side surface of the shell are respectively provided with an oil inlet pipe and an oil outlet pipe, the upper end and the lower end of the inner part of the shell are respectively provided with an upper honeycomb plate and a lower honeycomb plate, a plurality of first through holes are respectively arranged on the upper honeycomb plate and the lower honeycomb plate, a heat exchange pipe is arranged between the upper honeycomb plate and the lower honeycomb plate, and the upper end and the lower end of the heat exchange pipe are respectively fixed in the first through holes on the upper honeycomb plate and the lower honeycomb plate; the middle upper part of the shell is also provided with a clapboard, the clapboard is provided with a plurality of second through holes, and the heat exchange tube penetrates through the second through holes; the aperture of the second through hole is larger than the diameter of the heat exchange tube. The utility model discloses the temperature that makes the conduction oil at each position in the heat exchanger keeps even unanimity, guarantees that the methanol-water solution temperature through the heat exchanger is in the optimum temperature of catalytic cracking reaction, and then improves the reaction rate of methyl alcohol hydrogen manufacturing catalytic cracking reaction and the preparation volume of hydrogen.

Description

Novel high-efficient heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field, concretely relates to novel high-efficient heat exchanger.

Background

The methanol steam reforming system mainly comprises raw material preheating and temperature rising, raw material vaporization and overheating, raw material reaction reforming, mixed gas cooling and the like, and in the whole reaction system, a raw material solution needs to be heated and heated to carry out catalytic cracking reaction to prepare hydrogen, so that a heat exchanger special for heating the raw material solution is needed. The oil temperature of the heat conducting oil in the heat exchanger used at present is not uniform in distribution, so that a part of raw material solution passing through the heat exchanger cannot be heated to the optimal temperature of the catalytic cracking reaction, and meanwhile, the temperature of the other part of raw material solution is higher than the optimal temperature of the catalytic cracking reaction, which is not beneficial to the corresponding catalytic cracking reaction.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve prior art not enough, provide a novel high-efficient heat exchanger, it can guarantee that the temperature distribution of conduction oil is even unanimous in the heat exchanger, and then guarantees that the methanol-water solution temperature through the heat exchanger is in catalytic cracking reaction's optimum temperature.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a novel high-efficiency heat exchanger comprises a shell, a feeding cover fixed at the upper end of the shell and a discharging cover fixed at the lower end of the shell, wherein an oil inlet pipe and an oil outlet pipe are respectively arranged at the upper end and the lower end of the outer side surface of the shell; the middle upper part of the shell is also provided with a partition plate parallel to the upper honeycomb plate, the partition plate is arranged below the oil inlet pipe, the edge of the partition plate is fixed with the inner wall of the shell, the partition plate is provided with a plurality of second through holes, the number of the second through holes on the partition plate is the same as that of the first through holes on the upper honeycomb plate and the lower honeycomb plate, the second through holes correspond to the first through holes on the upper honeycomb plate and the lower honeycomb plate in position, and the heat exchange tubes penetrate through the second through holes; the aperture of the second through hole is larger than the diameter of the heat exchange tube, so that an annular gap for the heat conduction oil to pass through is formed between the outer wall of the heat exchange tube and the inner wall of the second through hole.

Further, be provided with a plurality of upper and lower interval distribution's heating coil between baffle and the lower honeycomb panel, the below of every heating coil still is provided with the temperature sensor fixed with shells inner wall, and the outside of casing is provided with the temperature controller who is used for controlling heating coil heating temperature, heating coil and temperature sensor all with temperature controller electric connection, temperature sensor will detect oil temperature signal transmission to temperature controller and show by temperature controller.

Further, a heat insulation layer is arranged on the outer side of the shell.

Furthermore, the heat preservation includes the cotton layer of cladding polyurethane on the casing outer wall and sets up the aluminium foil layer in the cotton layer outside of polyurethane.

Furthermore, the heat exchange tube is a round tube, the second through hole is a round hole, and the diameter D of the oil inlet tube₁Outer diameter D of heat exchange tube₂Diameter D of the second through hole₃And the relation between the number n of the heat exchange tubes satisfies D₁ ²＝n(D₃ ²-D₂ ²)。

Compared with the prior art, the utility model discloses the temperature that not only makes the conduction oil in the heat exchanger in same high plane keeps even unanimous, but also makes the temperature of the conduction oil in the heat exchanger keep unanimous in vertical direction to be favorable to guaranteeing that the methanol-water solution temperature through the heat exchanger is in the optimum temperature of catalytic cracking reaction, and then improve the reaction rate of methyl alcohol hydrogen manufacturing catalytic cracking reaction and the preparation volume of hydrogen. Furthermore, the utility model discloses still have temperature control easy operation, control accuracy, advantage that the energy consumption is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an internal structural view of the present invention;

fig. 2 is a schematic structural view of an upper honeycomb panel in the present invention;

fig. 3 is a schematic structural view of the heating coil of the present invention;

FIG. 4 is an enlarged partial view taken at I of FIG. 1;

fig. 5 is a schematic structural diagram of the middle partition plate of the present invention.

The reference numerals are explained below:

in the figure: 1. a discharge pipe; 2. a discharge cover; 3. a housing; 4. a polyurethane foam layer; 5. an aluminum foil layer; 6. a heating coil; 7. an oil inlet pipe; 8. a stationary ring plate; 9. a feed hood; 10. a feed pipe; 11. an upper honeycomb plate; 12. a temperature controller; 13. a temperature sensor; 14. a heat exchange pipe; 15. an oil outlet pipe; 16. a lower cellular board; 17. a partition plate; 18. a first through hole; 19. a second through hole; 20. and (7) an insulating layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a new high efficiency heat exchanger, which comprises a shell 3, a feeding cover 9 fixed on the upper end of the shell 3 and a discharging cover 2 fixed on the lower end of the shell 3, wherein the upper and lower ends of the outer side surface of the shell 3 are respectively provided with an oil inlet pipe 7 and an oil outlet pipe 15 communicated with the inside of the shell 3, the upper and lower ends of the inside of the shell 3 are respectively provided with an upper cellular board 11 and a lower cellular board 16, the edges of the upper cellular board 11 and the lower cellular board 16 are connected with the inner wall of the shell 3 in a sealing manner, a plurality of first through holes 18 are respectively arranged on the upper honeycomb plate 11 and the lower honeycomb plate 16, a heat exchange pipe 14 is arranged between the upper honeycomb plate 11 and the lower honeycomb plate 16, the upper end and the lower end of the heat exchange pipe 14 are respectively fixed in the first through holes 18 on the upper honeycomb plate 11 and the lower honeycomb plate 16, a feeding pipe 10 is arranged at the upper end of the feeding cover 9, and a discharging pipe 1 is arranged at the bottom of the discharging cover 2; the middle upper part of the shell 3 is also provided with a partition plate 17 parallel to the upper honeycomb plate 11, the partition plate 17 is arranged below the oil inlet pipe 7, the edge of the partition plate 17 is fixed with the inner wall of the shell 3, the partition plate 17 is provided with a plurality of second through holes 19, the number of the second through holes 19 on the partition plate 17 is the same as that of the first through holes 18 on the upper honeycomb plate 11 and the lower honeycomb plate 16, the positions of the second through holes 19 correspond to those of the first through holes 18 on the lower honeycomb plate 16, and the heat exchange pipe 14 penetrates through the second through holes 19; the aperture of the second through hole 19 is larger than the diameter of the heat exchange tube 14, so that an annular gap for the heat conduction oil to pass through is formed between the outer wall of the heat exchange tube 14 and the inner wall of the second through hole 19.

The utility model discloses in, be provided with two or more than two electric heating coil 6 of interval distribution from top to bottom between baffle 17 and the lower honeycomb panel 16, heating coil 6 is around establishing between the gap of heat exchange tube 14, every heating coil 6's below still be provided with the fixed temperature sensor 13 of 3 inner walls of casing, the outside of casing 3 is provided with the temperature controller 12 that is used for controlling heating coil 6 heating temperature, heating coil 6 and temperature sensor 13 all with temperature controller 12 electric connection, temperature sensor 13 will detect oil temperature signal transmission to temperature controller 12 and show by temperature controller 12. The utility model discloses can control the regulation through temperature controller 12 to the heating temperature of heating coil 6, the actual temperature of the inside different positions conduction oil of real-time display casing 3 simultaneously, not only easy operation but also temperature control are accurate. The utility model discloses in the temperature controller 12's that uses model can be CN32PT, dispose the display screen that is used for showing the temperature on it, except the model that the aforesaid lists, the temperature controller 12 of other models also can be chooseed for use as required to the technical staff in this field.

The utility model discloses in, the outside of casing 3 is provided with heat preservation 20, and heat preservation 20 includes the cotton layer of polyurethane 4 of cladding on the outer wall of casing 3 and sets up the aluminium foil layer 5 in the cotton layer of polyurethane 4 outside, and the aluminium foil layer 5 of setting can improve the life on the cotton layer of polyurethane 4. The heat loss of the heat exchanger can be reduced through the arranged heat insulation layer 20, the energy consumption of enterprises can be reduced, and the purpose of energy conservation is achieved.

The utility model discloses in, heat exchange tube 14 can adopt the pipe, this moment second through-hole 19 for the round hole that the pipe suited, advance the diameter D of oil pipe 7₁Outer diameter D of the heat exchange tube 14₂Diameter D of the second through-hole 19₃And the number n of the heat exchange tubes 14 satisfies D₁ ²＝n(D₃ ²-D₂ ²) And a most appropriate gap is formed between the second through hole 19 and the heat exchange tube 14, so that the heat conduction oil between the upper honeycomb plate 11 and the partition plate 17 can flow to the lower part of the partition plate 17 at a proper speed, and the temperature of the heat conduction oil at the same height in the shell 3 is further ensured to be consistent.

The utility model discloses when specifically implementing, the upper and lower both ends of casing 3, the lower extreme of feeding cover 9 and the upper end of ejection of compact cover 2 all are provided with fixed ring board 8, fixed ring board 8 of casing 3 upper end and fixed ring board 8 of feeding cover 9 lower extreme carry out fixed connection through the bolt, fixed ring board 8 of casing 3 lower extreme and fixed ring board 8 of ejection of compact cover 2 upper end carry out fixed connection through the bolt equally, in order to realize the sealed between casing 3 and feeding cover 9 or ejection of compact cover 2 better, can set up the rubber pad of butadiene acrylonitrile rubber material between casing 3 and feeding cover 9 or ejection of compact cover 2; heat conduction oil is introduced into the shell 3 from the oil inlet pipe 7, the heat conduction oil firstly enters a space between the upper honeycomb plate 11 and the partition plate 17, a smaller space between the upper honeycomb plate 11 and the partition plate 17 is favorable for forming a temperature field with more uniform temperature distribution, then the heat conduction oil flows into the lower part of the partition plate 17 from a gap between the second through hole 19 and the heat exchange pipe 14, and the arrangement of the partition plate 17 is favorable for keeping the temperature of the heat conduction oil below the partition plate 17 uniform and consistent in the same height plane; in the process that the heat conduction oil flows downwards in the shell 3, the heat conduction oil continuously exchanges heat with the heat exchange tube 14, and the temperature of the heat conduction oil can be effectively prevented from gradually attenuating from top to bottom by arranging the heating coil 6, so that the temperature of the heat conduction oil in the shell 3 is kept consistent in the vertical direction; methanol water solution is added into a space between the feeding cover 9 and the upper honeycomb plate 11 from the feeding pipe 10, then the methanol water solution flows into the heat exchange pipe 14 and reacts with a catalyst in the heat exchange pipe 14 to generate cracked gas, and the cracked gas enters the next process from the discharging pipe. The edges of the upper honeycomb plate 11 and the lower honeycomb plate 16 are connected with the shell 3 in a seamless mode, and the two ends of the heat exchange pipe 14 are connected with the upper honeycomb plate 11 and the lower honeycomb plate 16 in a sealing mode, so that the methanol water solution is prevented from being mixed into the heat conduction oil.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A novel high-efficiency heat exchanger comprises a shell, a feeding cover fixed at the upper end of the shell and a discharging cover fixed at the lower end of the shell, wherein an oil inlet pipe and an oil outlet pipe are respectively arranged at the upper end and the lower end of the outer side surface of the shell, an upper honeycomb plate and a lower honeycomb plate are respectively arranged at the upper end and the lower end inside the shell, a plurality of first through holes are respectively formed in the upper honeycomb plate and the lower honeycomb plate, a heat exchange pipe is arranged between the upper honeycomb plate and the lower honeycomb plate, the upper end and the lower end of the heat exchange pipe are respectively fixed in the first through holes in the upper honeycomb plate and the lower honeycomb plate, a feeding pipe is arranged at the upper end of the feeding cover, a discharging pipe is arranged at the bottom of the discharging cover, the novel high-efficiency heat exchanger is characterized in that a partition plate parallel to the upper honeycomb plate is further arranged at the middle upper part of the shell, the partition plate is arranged below the oil inlet pipe, the edge of the partition plate is fixed with the inner wall of the shell, a plurality of second through holes are arranged on the partition plate, the second through holes in the partition plate are the same in number and correspond to the first through holes in the upper honeycomb plate and the lower honeycomb plate in position, and the heat exchange tubes penetrate through the second through holes; the aperture of the second through hole is larger than the diameter of the heat exchange tube, so that an annular gap for the heat conduction oil to pass through is formed between the outer wall of the heat exchange tube and the inner wall of the second through hole.

2. The novel efficient heat exchanger of claim 1, wherein: be provided with a plurality of upper and lower interval distribution's heating coil between baffle and the lower honeycomb panel, the below of every heating coil still is provided with the temperature sensor fixed with shells inner wall, and the outside of casing is provided with the temperature controller who is used for controlling heating coil heating temperature, heating coil and temperature sensor all with temperature controller electric connection, temperature sensor will detect oil temperature signal transmission to temperature controller and show by temperature controller.

3. The novel efficient heat exchanger of claim 1, wherein: and a heat insulation layer is arranged on the outer side of the shell.

4. A novel high efficiency heat exchanger as claimed in claim 3 wherein: the heat preservation includes the cotton layer of cladding polyurethane on the casing outer wall and sets up the aluminium foil layer in the cotton layer outside of polyurethane.

5. A novel high efficiency heat exchanger as claimed in any one of claims 1 to 4, wherein: the heat exchange tube is a round tube, the second through hole is a round hole, and the diameter D of the oil inlet tube₁Outer diameter D of heat exchange tube₂Diameter D of the second through hole₃And the relation between the number n of the heat exchange tubes satisfies D₁ ²＝n(D₃ ²-D₂ ²)。