CN117989898A - High-efficient circulation hydrogenation heat exchanger - Google Patents
High-efficient circulation hydrogenation heat exchanger Download PDFInfo
- Publication number
- CN117989898A CN117989898A CN202410401945.8A CN202410401945A CN117989898A CN 117989898 A CN117989898 A CN 117989898A CN 202410401945 A CN202410401945 A CN 202410401945A CN 117989898 A CN117989898 A CN 117989898A
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- Prior art keywords
- side wall
- tube
- shell
- pipe
- heat exchange
- Prior art date
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- Granted
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- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 21
- 239000011324 bead Substances 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 abstract description 30
- 239000012530 fluid Substances 0.000 description 20
- 230000008646 thermal stress Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/224—Longitudinal partitions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a high-efficiency circulating hydrogenation heat exchanger, which belongs to the field of heat exchangers and comprises a shell and a split head, wherein the upper side wall and the lower side wall of the split head are respectively connected with an input pipe and an output pipe, the upward side wall of one end of the shell is connected with a main cooling pipe, the downward side wall of the other end of the shell is connected with a secondary cooling pipe, the end part of the shell opposite to the split head is connected with a seal head, the inner side wall of the split head is connected with a baffle plate, the side wall of the baffle plate is connected with a plurality of guide pipes, and a drainage assembly is arranged in the guide pipes. According to the invention, through the arrangement of the baffle plate and the impeller, after the cooling fluid cools the heat exchange tube at the front section of the baffle plate, the fluidity of the cooling fluid is raised by the impeller, so that the cooling fluid keeps the temperature uniform to cool the heat exchange tube at the rear section, and meanwhile, due to the arrangement of the one-way bucket and the limiting bead, when the temperature difference between the inside and outside of the heat exchange tube is large, the limiting bead and the one-way bucket are utilized to open the compensation pressure relief channel, so that the damage to the heat exchange tube is reduced as much as possible.
Description
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a high-efficiency circulating hydrogenation heat exchanger.
Background
A heat exchanger is a device that transfers a portion of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, and has wide application; the shell-and-tube heat exchanger has one fluid flowing in and out of the tube from the two ends of the end enclosure, called tube pass, and the other fluid flowing in and out of the tube array in the shell, called shell pass.
The hydrogenation heat exchanger is generally used at the outlet position of the reactor, and uses the reactor product and the hydrogen-mixed raw material as main materials to exchange heat, so that the use condition of high temperature and high pressure is required, however, the metal flat gaskets are used at the two sides of the tube plate between the tube box flange and the tube box side flange, the gasket is very small in axial rebound compensation, once the main bolt and the flange have a certain temperature difference, when the thermal expansion of the flange is larger than that of the main bolt, the main bolt is easy to leak when the elongation exceeds the elastic deformation length of the main bolt, great danger is brought to the environment and staff, and meanwhile, when the temperature difference of two fluids in the tube shell type heat exchanger is large, great thermal stress is produced in the tube side and the shell side, the heat exchanger is easy to damage, and the U-shaped tube is usually adopted to compensate the deformation generated by the thermal stress, so that the heat exchanger is relatively troublesome to clean after being used in a bent tube form of the U-shaped tube, the cleaning cost is improved, and the use efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems that when the temperature difference of two fluids in a shell-and-tube heat exchanger is large, larger thermal stress is generated in the tube side and the shell side, the heat exchanger is easy to damage, and the deformation generated by the thermal stress is compensated by adopting a U-shaped tube at present, but the bent tube form of the U-shaped tube causes the heat exchanger to be more troublesome to clean after being used, the cleaning cost is improved, and the use efficiency is reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a high-efficient circulation hydrogenation heat exchanger, includes shell and reposition of redundant personnel head, reposition of redundant personnel head top and below lateral wall are connected with input tube and output tube respectively, the ascending lateral wall of shell one end is connected with main cooling pipe, the decurrent lateral wall of shell other end is connected with vice cooling tube, is located the reposition of redundant personnel head is relative shell end connection has the head, the reposition of redundant personnel head inside wall is connected with the baffle, the baffle lateral wall is connected with a plurality of guide tubes, be provided with drainage subassembly in the guide tube, the shell inside wall is connected with a plurality of equidistant baffling baffles, baffling baffle inside wall is connected with a plurality of heat exchange tubes, heat exchange tube both ends lateral wall all is connected with main tube sheet and vice tube sheet, be provided with heat conduction subassembly between main tube sheet and the vice tube sheet, be provided with a plurality of interior intercommunication chamber and outer intercommunication chamber in the head, the top and the below of interior intercommunication chamber lateral wall are connected with two compensation pipes respectively, two compensation pipes on the interior intercommunication chamber are through same in-connection, two compensation pipes on the outer intercommunication chamber are connected with the compensation pipe through same outside through the compensation subassembly.
Preferably, the outer side wall below the shell is fixedly connected with two supports, one end of the shell is connected with the end face of the shunt head in an assembling mode, the other end of the shell is connected with the end face of the seal head in an assembling mode, and sealing rings are arranged between the shell and the shunt head and between the shell and the seal head.
Preferably, the upper side wall and the lower side wall of the split head are respectively communicated with the input pipe and the output pipe, the inner side wall of the split head is fixedly connected with the inner side wall of the partition plate, the main cooling pipe is positioned above one side of the split head, and the auxiliary cooling pipe is positioned below one side of the sealing head.
Preferably, the outer side wall of the main tube plate is fixedly connected with the inner side wall of the end part of the shell, the inner side wall of the main tube plate is fixedly connected with the outer side wall of the end part of the heat exchange tube, and the inner side wall of the auxiliary tube plate is fixedly connected with the outer side wall of the heat exchange tube.
Preferably, the inner side wall of the baffle plate is fixedly connected with the outer side wall of the heat exchange tube, one outer side wall of the baffle plate is fixedly connected with the inner side wall of the shell, the other outer side wall of the baffle plate which is obliquely symmetrical is fixedly connected with the outer side wall of the guide tube, and the directions of the two adjacent baffle plates are opposite.
Preferably, the drainage assembly comprises a pin shaft and an impeller member, the inner side wall of the end part of the guide tube is fixedly connected with a through plate, the end surface of the through plate is rotationally connected with the end part of the pin shaft, and the outer side wall of the pin shaft is fixedly connected with the inner side wall of the impeller member.
Preferably, the heat conduction assembly consists of a plurality of heat conduction rings, the inner side wall of each heat conduction ring is fixedly connected with the outer side wall of each heat exchange tube, and two ends of each heat conduction ring are respectively fixedly connected with the end faces of the main tube plate and the auxiliary tube plate.
Preferably, the compensation component comprises a unidirectional bucket and a limiting bead, the inner side wall of the compensation pipe is fixedly connected with a pore plate, the inner side wall of the compensation pipe is fixedly connected with the outer side wall of the unidirectional bucket, the pore plate is fixedly connected with the side wall of the limiting bead through a reset spring, and the diameter of the limiting bead is slightly larger than the inner diameter of the small opening end of the unidirectional bucket.
Preferably, the unidirectional hopper located above and the unidirectional hopper located below face opposite, the inner communicating cavity is connected together through two heat exchange tubes located on the inner ring, and the outer communicating cavity is connected together through two heat exchange tubes located on the outer ring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the scheme, through the arrangement of the baffle plate and the impeller, after the cooling fluid is cooled on the heat exchange tube at the front section of the baffle plate, the fluidity of the cooling fluid is raised by the impeller, so that the cooling fluid keeps uniform temperature and cools the heat exchange tube at the rear section.
2. According to the scheme, through the arrangement of the heat conduction ring, the temperature difference of the sealing connection part of the main pipe plate can be reduced, leakage of internal fluid caused by overlarge thermal stress is avoided, and damage is caused to the environment and workers.
3. This scheme is through setting up of one-way fill and spacing pearl, can be when the heat stress is great in the inside and outside difference in temperature of heat exchange tube, utilize spacing pearl and one-way fill to open compensation pressure release passageway, reduce the damage to the heat exchange tube as far as possible, guaranteed the normal life of heat exchanger, and interior intercommunication chamber and outer intercommunication chamber and main tube sheet detachable assembly structure, can dismantle back with a plurality of compensation pipes and compensation subassembly that interior intercommunication chamber and outer intercommunication chamber and they are connected soak cleanly, dismantle the part and can carry out reserve change cleanly, carry out fluid direct cleaning to straight heat exchange tube, make the holistic cleanness of heat exchanger more convenient, cleaning efficiency has been promoted, be convenient for carry out new fluid heat transfer fast.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a high-efficiency cyclic hydrogenation heat exchanger according to the present invention;
FIG. 2 is a schematic diagram of a third perspective view of a high-efficiency cyclic hydrogenation heat exchanger according to the present invention;
FIG. 3 is a schematic view of a structure of a plurality of baffle plates in a high-efficiency circulating hydrogenation heat exchanger according to the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic view of the impeller in the high-efficiency circulating hydrogenation heat exchanger according to the present invention;
FIG. 6 is a schematic diagram of a heat transfer assembly in a high efficiency recycle hydrogenation heat exchanger according to the present invention;
FIG. 7 is a schematic diagram of the structure of the positions of the inner and outer intercommunicating chambers in the high-efficiency circulating hydrogenation heat exchanger;
FIG. 8 is a schematic diagram of the structure of the orientation of the upper and lower unidirectional hoppers in the high-efficiency circulating hydrogenation heat exchanger;
Fig. 9 is an enlarged view at B in fig. 8.
In the figure: 1. a housing; 2. a shunt head; 3. a support; 4. an input tube; 5. an output pipe; 6. a main cooling pipe; 7. an auxiliary cooling tube; 8. a seal head; 9. a seal ring; 10. a partition plate; 11. a main tube sheet; 12. a secondary tube plate; 13. a thermally conductive ring; 14. an outer communicating tube; 15. a heat exchange tube; 16. a baffle plate; 17. a guide tube; 18. a through plate; 19. a pin shaft; 20. an impeller member; 21. an inner communicating cavity; 22. a compensation tube; 23. an orifice plate; 24. a one-way bucket; 25. a return spring; 26. limiting beads; 27. an inner connecting pipe; 28. and an outer communicating cavity.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
1-9, A high-efficiency circulating hydrogenation heat exchanger comprises a shell 1 and a split head 2, wherein the upper side wall and the lower side wall of the split head 2 are respectively connected with an input pipe 4 and an output pipe 5, the upward side wall of one end of the shell 1 is connected with a main cooling pipe 6, the downward side wall of the other end of the shell 1 is connected with a secondary cooling pipe 7, the end part of the shell 1 opposite to the split head 2 is connected with a seal head 8, the inner side wall of the split head 2 is connected with a partition board 10, the side wall of the partition board 10 is connected with a plurality of guide pipes 17, and a drainage component is arranged in the guide pipes 17;
Further, two supports 3 are fixedly connected to the outer side wall below the shell 1, one end of the shell 1 is fixedly connected with the end face of the split head 2, the other end of the shell 1 is fixedly connected with the end face of the end socket 8, sealing rings 9 are arranged between the shell 1 and the split head 2 and between the shell 1 and the end socket 8, the upper side wall and the lower side wall of the split head 2 are respectively communicated with the input pipe 4 and the output pipe 5, the inner side wall of the split head 2 is fixedly connected with the inner side wall of the partition plate 10, the main cooling pipe 6 is positioned above one side of the split head 2, the auxiliary cooling pipe 7 is positioned below one side of the end socket 8, the outer side wall of the main pipe 11 is fixedly connected with the inner side wall of the end part of the shell 1, the inner side wall of the main pipe 11 is fixedly connected with the outer side wall of the end part of the shell 1, the inner side wall of the auxiliary pipe 12 is fixedly connected with the outer side wall of the heat exchange pipe 15, the inner side wall of the baffle 16 is fixedly connected with the outer side wall of the heat exchange pipe 15, one outer side wall of the baffle 16 is fixedly connected with the inner side wall of the shell 1, the other outer side wall of the baffle 16 is obliquely symmetrical with the outer side wall of the guide pipe 17, the direction of the adjacent two baffle 16 is opposite to each other, the drainage assembly is composed of a pin 19 and an impeller 20, the inner side wall of the guide pipe 17 is fixedly connected with a through end face 18, the inner side 19 is fixedly connected with the end face 19 of the baffle 19 and the end part of the baffle 20, and the end part of the baffle 19 is fixedly connected with the pin 20;
It should be noted that: the hot fluid is introduced from the input pipe 4, enters the split head 2 and then enters the heat exchange pipe 15 above the baffle plate 10, meanwhile, the cooling fluid is introduced from the main cooling pipe 6 and enters the shell 1, along with the continuous input of the cooling fluid, the cooling fluid flows through a clearance curve between the baffle plate 16 and the shell 1, when passing through the baffle plate 16, the cooling fluid passes through the guide pipe 17, the flowing cooling fluid can provide power for the rotation of the impeller member 20, the impeller member 20 rotates on the through plate 18 through the pin shaft 19, so that the cooling fluid flowing through the baffle plate 16 is subjected to multistage stirring and mixing, the cooling fluid has stronger fluidity after passing through the baffle plate 16, the temperature of each place is uniform, the local cooling fluid temperature is prevented from rising due to the cooling of the heat exchange pipe 15 before the former baffle plate 16, the integral temperature of the cooling fluid is uneven, and the external cooling effect of the later heat exchange pipe 15 is influenced;
The adoption of the method has the following further advantages: this allows the cooling fluid to be cooled by the heat exchange tube 15 at the front stage of the double flow baffle 16, and then the fluidity of the cooling fluid is raised by the impeller member 20, so that the cooling fluid maintains a uniform temperature to cool the heat exchange tube 15 at the rear stage.
1-9, The inner side wall of the shell 1 is connected with a plurality of equally-spaced baffle plates 16, the inner side wall of each baffle plate 16 is connected with a plurality of heat exchange tubes 15, the outer side walls of two ends of each heat exchange tube 15 are connected with a main tube plate 11 and an auxiliary tube plate 12, and a heat conduction assembly is arranged between the main tube plate 11 and the auxiliary tube plate 12;
Further, the heat conduction assembly consists of a plurality of heat conduction rings 13, the inner side wall of each heat conduction ring 13 is fixedly connected with the outer side wall of each heat exchange tube 15, and two ends of each heat conduction ring 13 are respectively fixedly connected with the end faces of the main tube plate 11 and the auxiliary tube plate 12;
It should be noted that: the temperature of the heat fluid just input into the heat exchange tube 15 is extremely high, so that the temperature inside and outside the main tube plate 11 can be greatly different, the high temperature of the heat exchange tube 15 is conducted to the heat conduction ring 13, the heat conduction ring 13 conducts heat to the main tube plate 11 and the auxiliary tube plate 12, and the heat at the end part of the heat exchange tube 15 is dispersed;
The adoption of the method has the following further advantages: therefore, the temperature difference at the sealing connection part of the main tube plate 11 can be reduced, and the leakage of internal fluid caused by overlarge thermal stress is avoided, so that the damage to the environment and staff is avoided.
1-9, A plurality of inner communicating cavities 21 and outer communicating cavities 28 are arranged in the sealing head 8, two compensating pipes 22 are respectively connected above and below the side walls of the inner communicating cavities 21 and the outer communicating cavities 28, the two compensating pipes 22 on the inner communicating cavities 21 are connected through the same inner connecting pipe 27, the two compensating pipes 22 on the outer communicating cavities 28 are connected through the same outer communicating pipe 14, compensating components are arranged in the compensating pipes 22, and the inner communicating cavities 21 and the outer communicating cavities 28 are detachably assembled on the side wall of the main pipe plate 11;
further, the compensation component consists of a one-way bucket 24 and a limiting bead 26, the inner side wall of the compensation tube 22 is fixedly connected with a pore plate 23, the inner side wall of the compensation tube 22 is fixedly connected with the outer side wall of the one-way bucket 24, the pore plate 23 is fixedly connected with the side wall of the limiting bead 26 through a reset spring 25, the diameter of the limiting bead 26 is slightly larger than the inner diameter of the small opening end of the one-way bucket 24, the one-way bucket 24 positioned above and the one-way bucket 24 positioned below face opposite, the inner communicating cavity 21 is connected together through two heat exchange tubes 15 positioned at the inner ring, and the outer communicating cavity 28 is connected together through two heat exchange tubes 15 positioned at the outer ring;
It should be noted that: when the temperature difference between the inside and the outside of the heat exchange tube 15 is larger, under the expansion condition of thermal stress, the pressure in the heat exchange tube 15 is larger than the pressure in the normal condition, the increased pressure can lead the hot fluid to be conveyed to the inner communicating cavity 21 and the outer communicating cavity 28, the limit beads 26 in the upper compensating tube 22 are pressed, under the condition that the pressure is gradually increased, the pressure borne by the limit beads 26 is larger than the elastic force of the deformation of the return spring 25, the limit beads 26 and the one-way bucket 24 generate gaps, the hot fluid enters the inner communicating tube 27 and the outer communicating tube 14 through the gaps between the limit beads 26 and the one-way bucket 24, the pressure in the heat exchange tube 15 is compensated and decompressed, the inner communicating tube 27 and the outer communicating tube 14 can be compensated and decompressed for a plurality of times, after the compensation is completed, the limit beads 26 are compressed with the one-way bucket 24 again under the elastic force of the return spring 25, so that the inner communicating tube 27 and the outer communicating tube 14 become a sealing state, after the heat exchanger is used, the inner communicating cavity 21 and the outer communicating tube 28 are detachably assembled with the main tube 11, the inner communicating tube 21 and the outer communicating tube 28 are directly connected with the compensating tube 22, and the back-up components can be cleaned, and the back-up heat exchange tube 15 can be directly removed, and the back-up components can be cleaned and cleaned;
The adoption of the method has the following further advantages: when the thermal stress is generated in the heat exchange tube 15 with a larger temperature difference between the inside and the outside, the compensation pressure release channel is opened by the limit beads 26 and the one-way hopper 24, so that the damage to the heat exchange tube 15 is reduced as much as possible, the normal service life of the heat exchanger is ensured, the heat exchanger is enabled to be clean and convenient, the cleaning efficiency is improved, and the novel fluid heat exchange is convenient and rapid.
When the heat exchange device is used, hot fluid is connected from the input pipe 4, enters the split head 2 and then enters the heat exchange pipe 15 above the baffle plate 10, meanwhile, the cooling fluid is connected from the main cooling pipe 6 and enters the shell 1, along with the continuous input of the cooling fluid, the cooling fluid flows through a clearance curve between the baffle plate 16 and the shell 1, the cooling fluid passes through the guide pipe 17 when passing through the baffle plate 16, the flowing cooling fluid can provide power for the impeller member 20 to rotate on the through plate 18 through the pin shaft 19, so that the cooling fluid flowing through the baffle plate 16 is subjected to multistage stirring and mixing, the cooling fluid has stronger fluidity after passing through the baffle plate 16, and the temperature of each place is uniform, the local cooling fluid temperature rise caused by the cooling of the heat exchange pipe 15 before the former baffle plate 16 is avoided, the overall temperature of the cooling fluid is nonuniform, the external cooling effect of the heat exchange pipe 15 at the rear section is influenced, and the cooling fluid can be cooled by the heat exchange pipe 15 at the front section of the baffle plate 16, the cooling fluid can be lifted through the impeller member 20, and the fluidity of the cooling fluid can be kept uniform for the cooling pipe 15 at the rear section;
The temperature of the heat fluid just input into the heat exchange tube 15 is extremely high, so that the temperature inside and outside the main tube plate 11 can be greatly different, the high temperature of the heat exchange tube 15 is conducted to the heat conduction ring 13, the heat conduction ring 13 conducts heat to the main tube plate 11 and the auxiliary tube plate 12, and the heat at the end part of the heat exchange tube 15 is dispersed, so that the temperature difference at the sealing connection part of the main tube plate 11 can be reduced, the leakage of the internal fluid caused by overlarge thermal stress is avoided, and the damage to the environment and staff is caused;
When the temperature difference between the inside and the outside of the heat exchange tube 15 is larger, under the expansion condition of thermal stress, the pressure in the heat exchange tube 15 can be larger than the pressure in the normal condition, the increased pressure can enable the hot fluid to be conveyed to the inner communicating cavity 21 and the outer communicating cavity 28, the limiting beads 26 in the compensation tube 22 positioned above are pressed, under the condition that the pressure is gradually increased, the pressure received by the limiting beads 26 is larger than the elastic force of the deformation of the reset spring 25, the limiting beads 26 and the one-way bucket 24 are enabled to generate gaps, the hot fluid enters the inner communicating pipe 27 and the outer communicating pipe 14 through the gaps between the limiting beads 26 and the one-way bucket 24, the pressure in the heat exchange tube 15 can be compensated and decompressed, the inner communicating pipe 27 and the outer communicating pipe 14 can be compensated and decompressed for a plurality of times, after compensation is completed, the limiting beads 26 are compressed with the one-way bucket 24 again under the elastic force of the reset spring 25, after the heat exchange tube 27 and the outer communicating pipe 14 are used, the heat exchange tube is completed, the inner communicating cavity 21 and the outer communicating cavity 28 are in a detachable assembly structure with the main tube 11, gaps are formed, the inner communicating pipe 21 and the outer communicating pipe 28 are enabled to be connected with the heat exchange tube 11, the heat exchange tube is cleaned and the heat exchange tube is directly, the heat exchange tube is cooled, the heat exchange tube is cleaned and the heat exchange tube is guaranteed, the heat exchange tube is directly is cooled, and the heat exchange tube is more has a better heat exchange tube is conveniently and has a long service life.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a high-efficient circulation hydrogenation heat exchanger, includes shell (1) and reposition of redundant personnel head (2), its characterized in that, reposition of redundant personnel head (2) top and below lateral wall are connected with input tube (4) and output tube (5) respectively, the ascending lateral wall of shell (1) one end is connected with main cooling tube (6), the ascending lateral wall of shell (1) other end is connected with vice cooling tube (7), is located reposition of redundant personnel head (2) relative shell (1) end connection has head (8), reposition of redundant personnel head (2) inside wall is connected with baffle (10), baffle (10) lateral wall is connected with a plurality of guide tubes (17), be provided with drainage subassembly in guide tube (17), shell (1) inside wall is connected with a plurality of equidistant baffling baffles (16), baffling baffle (16) inside wall is connected with a plurality of heat exchange tubes (15), heat exchange tube (15) both ends lateral wall all is connected with main tube (11) and vice tube (12), be provided with between main tube (11) and vice tube (12) heat exchange tube (12) subassembly, the intercommunication is provided with in the cavity (21) and the intercommunication outside (28) outside the intercommunication respectively with a plurality of compensation cavity (28) and the intercommunication outside (28), two compensation pipes (22) on interior intercommunication chamber (21) are connected through same interconnection pipe (27), two compensation pipes (22) on outer intercommunication chamber (28) are connected through same outer communicating pipe (14), be provided with compensation subassembly in compensation pipe (22), drainage subassembly comprises round pin axle (19) and impeller spare (20), lead to pipe (17) tip inside wall fixedly connected with logical board (18), lead to board (18) terminal surface and round pin axle (19) tip swivelling joint, round pin axle (19) lateral wall and impeller spare (20) inside wall fixed connection, heat-conducting subassembly comprises a plurality of heat-conducting rings (13), heat-conducting ring (13) inside wall and heat exchange tube (15) lateral wall fixed connection, heat-conducting ring (13) both ends respectively with be responsible for board (11) and accessory pipe board (12) terminal surface fixed connection, interior intercommunication chamber (21) and outer intercommunication chamber (28) all can dismantle the assembly on the lateral wall of responsible board (11).
2. The efficient circulating hydrogenation heat exchanger according to claim 1, wherein two supports (3) are fixedly connected to the outer side wall below the shell (1), one end of the shell (1) is connected with the end face of the split head (2) in an assembling mode, the other end of the shell (1) is connected with the end face of the seal head (8) in an assembling mode, and sealing rings (9) are arranged between the shell (1) and the split head (2) and between the shell (1) and the seal head (8).
3. The efficient circulating hydrogenation heat exchanger according to claim 1, wherein the upper side wall and the lower side wall of the split head (2) are respectively communicated with the input pipe (4) and the output pipe (5), the inner side wall of the split head (2) is fixedly connected with the inner side wall of the partition plate (10), the main cooling pipe (6) is located above one side of the split head (2), and the auxiliary cooling pipe (7) is located below one side of the seal head (8).
4. The efficient circulating hydrogenation heat exchanger according to claim 1, wherein the outer side wall of the main pipe plate (11) is fixedly connected with the inner side wall of the end part of the shell (1), the inner side wall of the main pipe plate (11) is fixedly connected with the outer side wall of the end part of the heat exchange pipe (15), and the inner side wall of the auxiliary pipe plate (12) is fixedly connected with the outer side wall of the heat exchange pipe (15).
5. The efficient circulating hydrogenation heat exchanger according to claim 1, wherein the inner side wall of the baffle plate (16) is fixedly connected with the outer side wall of the heat exchange tube (15), one outer side wall of the baffle plate (16) is fixedly connected with the inner side wall of the shell (1), the other outer side wall of the baffle plate (16) which is obliquely symmetrical is fixedly connected with the outer side wall of the guide tube (17), and the directions of the two adjacent baffle plates (16) are opposite.
6. The efficient circulating hydrogenation heat exchanger according to claim 1, wherein the compensation assembly consists of a unidirectional hopper (24) and a limiting bead (26), an orifice plate (23) is fixedly connected to the inner side wall of the compensation tube (22), the inner side wall of the compensation tube (22) is fixedly connected with the outer side wall of the unidirectional hopper (24), the orifice plate (23) is fixedly connected with the side wall of the limiting bead (26) through a return spring (25), and the diameter of the limiting bead (26) is slightly larger than the inner diameter of the small opening end of the unidirectional hopper (24).
7. A high efficiency cyclic hydrogenation heat exchanger according to claim 6, wherein the upper one-way scoop (24) is opposite to the lower one-way scoop (24), the inner intercommunicating chamber (21) is commonly connected by two heat exchange tubes (15) located in the inner ring, and the outer intercommunicating chamber (28) is commonly connected by two heat exchange tubes (15) located in the outer ring.
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| CN117989898B (en) | 2024-06-14 |
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