CN214582648U - Heat exchanger and reactor system with same - Google Patents
Heat exchanger and reactor system with same Download PDFInfo
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- CN214582648U CN214582648U CN202120751636.5U CN202120751636U CN214582648U CN 214582648 U CN214582648 U CN 214582648U CN 202120751636 U CN202120751636 U CN 202120751636U CN 214582648 U CN214582648 U CN 214582648U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model discloses a heat exchanger and have its reactor system, the heat exchanger includes: a central cartridge having an inlet and an outlet; the outer guide cylinder is sleeved outside the central cylinder and is relatively fixed with the central cylinder, and a gap is formed between the central cylinder and the outer guide cylinder; the spiral heat exchange tube is arranged between the center cylinder and the outer guide cylinder, the spiral heat exchange tube is wound on the outer side of the center cylinder, and an inlet of the spiral heat exchange tube is communicated with an outlet of the center cylinder. In the heat exchanger structure that this application provided, the secondary side coolant in spiral heat exchange tube and the center section of thick bamboo carries out the heat exchange with the primary side coolant in the pressure vessel jointly, and spiral heat exchange tube and the reverse flow of center section of thick bamboo inner cooling agent compare with prior art, have increased heat transfer area, have improved heat exchange efficiency.
Description
Technical Field
The utility model relates to a nuclear reactor technical field, more specifically say, relate to a heat exchanger and have its reactor system.
Background
The heat exchanger of the reactor system is typically disposed within the reactor pressure vessel, and is contained within the primary coolant within the pressure vessel for heat exchange with the primary coolant. The heat exchanger of the reactor system in the prior art is generally of a sleeve structure or a tube array structure, the sleeve structure has the problem of low heat exchange efficiency under natural circulation, and the sleeve heat exchanger has large manufacturing difficulty and later maintenance difficulty.
SUMMERY OF THE UTILITY MODEL
In view of this, the first objective of the present invention is to provide a heat exchanger, the structural design of which can effectively improve the heat exchange efficiency, and the second objective of the present invention is to provide a reactor system including the above heat exchanger.
In order to achieve the first object, the present invention provides the following technical solutions:
a heat exchanger, comprising:
a central cartridge having an inlet and an outlet;
the outer guide cylinder is sleeved outside the central cylinder and is relatively fixed with the central cylinder, and a gap is formed between the central cylinder and the outer guide cylinder;
the spiral heat exchange tube is arranged between the center cylinder and the outer guide cylinder, the spiral heat exchange tube is wound on the outer side of the center cylinder, and an inlet of the spiral heat exchange tube is communicated with an outlet of the center cylinder.
Preferably, in the heat exchanger, a plurality of layers of spiral heat exchange tubes are arranged in a gap between the central cylinder and the outer guide cylinder from inside to outside;
and the winding directions of the two adjacent layers of spiral heat exchange tubes are opposite.
Preferably, in the above heat exchanger, the heat exchanger further comprises a plurality of positioning frames, each positioning frame comprises a filler strip and an arc-shaped buckle, the length direction of the filler strip is parallel to the length direction of the central cylinder, a plurality of pipe grooves are formed in the filler strip along the length direction of the filler strip, the spiral heat exchange tubes in the same layer are respectively clamped in the plurality of pipe grooves, and the arc-shaped buckles can block the notches of the pipe grooves.
Preferably, in the heat exchanger, the spiral angle of the spiral heat exchange tube is 13-20 degrees.
Preferably, the heat exchanger further comprises a central liquid inlet pipe communicated with the inlet of the central cylinder;
the central liquid inlet pipe comprises a first section and a second section which are sequentially connected and are mutually perpendicular, and the first section of the central liquid inlet pipe is coaxially connected with the central cylinder.
Preferably, the heat exchanger further comprises a buffer tank communicated with an outlet of the spiral heat exchange tube and a main outlet tube communicated with the buffer tank; the outlet of the spiral heat exchange tube is connected with the buffer tank through a first tube plate;
the total outlet pipe is perpendicular to the central cylinder, a first section of the central liquid inlet pipe penetrates through the buffer box, and a second section of the central liquid inlet pipe penetrates through the total outlet pipe.
Preferably, in the above heat exchanger, the part of the outlet end of the spiral heat exchange tube extending out of the outer guide cylinder is L-shaped and extends along the outer wall of the central liquid inlet tube.
Preferably, the heat exchanger further comprises a buffer tank communicated with an outlet of the spiral heat exchange tube and a main outlet tube communicated with the buffer tank; the outlet of the spiral heat exchange tube is connected with the buffer tank through a first tube plate;
the total exit tube with a central section of thick bamboo mutually perpendicular, the first section of central feed liquor pipe passes the baffle-box, the second section of central feed liquor pipe is located the outside of baffle-box and with the total exit tube is parallel.
Preferably, the heat exchanger further comprises a central outlet pipe communicated with the outlet of the central cylinder and an end tank communicated with the central outlet pipe, and the inlet of the spiral heat exchange pipe is communicated with the end tank;
and the inlet of the spiral heat exchange tube is connected with the end box through a second tube plate.
A reactor system comprising a pressure vessel and further comprising at least one heat exchanger as claimed in any preceding claim, the heat exchanger being welded or flanged to a nozzle on the pressure vessel.
Use the utility model provides a during the heat exchanger, this heat exchanger can wholly dip in once in the coolant, outer guide cylinder both ends opening once in the coolant gets into outer guide cylinder. The coolant firstly enters the central cylinder, enters the spiral heat exchange tube after passing through the outlet of the central cylinder, and is finally discharged out of the heat exchanger from the outlet of the spiral heat exchange tube. The spiral heat exchange tube and the central cylinder are integrally immersed in the primary side coolant in the outer guide cylinder, so that heat exchange between the spiral heat exchange tube and the secondary side coolant in the central cylinder and the primary side coolant in the outer guide cylinder is realized, and further the primary side coolant is cooled.
By last knowing, among the heat exchanger structure that this application provided, the secondary side coolant in spiral heat exchange tube and the center section of thick bamboo carries out the heat exchange with the primary side coolant in the pressure vessel jointly, and spiral heat exchange tube and the counter flow of coolant in the center section of thick bamboo have compared with prior art, have increased heat transfer area, have improved heat exchange efficiency. In addition, the heat exchanger has the advantages of compact structure, simple system, high heat transfer efficiency, reduced number of penetrating pieces and the like, and effectively reduces the manufacturing cost. Meanwhile, a primary side coolant pipeline is eliminated, and the LOCA accident risk is reduced.
In order to achieve the second objective, the present invention further provides a reactor system, which includes any one of the heat exchangers. Since the heat exchanger has the technical effects, a reactor system with the heat exchanger also has corresponding technical effects.
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 a schematic structural diagram of a heat exchanger according to a first embodiment of the present invention;
fig. 2 is a cross-sectional view of a heat exchanger according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of another heat exchanger according to the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a heat exchanger according to a second embodiment of the present invention;
fig. 5 is a cross-sectional view of a heat exchanger according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a heat exchanger according to a third embodiment of the present invention;
fig. 7 is a cross-sectional view of a heat exchanger according to a third embodiment of the present invention;
fig. 8 is a schematic flow diagram of a part of the spiral heat exchange tube and the coolant in the central cylinder according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a positioning frame according to an embodiment of the present invention;
fig. 10 is a top view of a heat exchanger according to an embodiment of the present invention.
In the figure:
1-total outlet pipe, 2-buffer tank, 3-central cylinder, 3 a-central liquid inlet pipe, 3 b-central outlet pipe, 4-spiral heat exchange pipe, 5-outer guide cylinder, 6-end tank, 7-second tube plate, 8-support lug, 9-first tube plate, 10-positioning frame, 10 a-cushion strip and 10 b-arc buckle.
Detailed Description
A first object of the present invention is to provide a heat exchanger, which has a structure designed to effectively improve heat exchange efficiency, and a second object of the present invention is to provide a reactor system including the above heat exchanger.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constituted in a specific orientation, and be operated, and thus, are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-6, a heat exchanger is provided that may be secured within a pressure vessel of a reactor system to cool a primary coolant within the pressure vessel.
The heat exchanger provided by the application comprises a central cylinder 3, an outer guide cylinder 5 and a spiral heat exchange tube 4. Wherein, the central cylinder 3 has an inlet and an outlet, the coolant can enter the inside of the central cylinder 3 through the inlet of the central cylinder 3, and the coolant can flow out of the inside of the central cylinder 3 through the outlet of the central cylinder 3.
The outer guide cylinder 5 is sleeved outside the central cylinder 3, and a gap is formed between the central cylinder 3 and the outer guide cylinder 5. In other words, the center cylinder 3 and the outer guide cylinder 5 are stacked, and a gap is provided between the outer wall of the center cylinder 3 and the inner wall of the outer guide cylinder 5. The outer guide cylinder 5 is fixed relative to the central cylinder 3, and specifically, the outer guide cylinder 5 and the central cylinder 3 may be fixedly connected, or the outer guide cylinder 5 and the central cylinder 3 may be fixedly connected through other components.
The spiral heat exchange tube 4 is arranged between the central cylinder 3 and the outer guide cylinder 5, and the spiral heat exchange tube 4 is wound on the outer side of the central cylinder 3. I.e. the helical heat exchange tubes 4 are wound spirally around the central tube 3. The inlet of the spiral heat exchange tube 4 is communicated with the outlet of the central cylinder 3. The coolant exchanges heat through the central cylinder 3 and the spiral heat exchange tubes 4 in sequence.
Use the utility model provides a during the heat exchanger, this heat exchanger can wholly dip in once in the coolant, 5 both ends openings of outer guide cylinder once in the coolant gets into outer guide cylinder 5. The coolant firstly enters the central cylinder 3, enters the spiral heat exchange tube 4 after passing through the outlet of the central cylinder 3, and finally is discharged out of the heat exchanger from the outlet of the spiral heat exchange tube 4. The spiral heat exchange tube 4 and the central cylinder 3 are integrally immersed in the primary side coolant in the outer guide cylinder 5, so that the heat exchange between the coolant in the spiral heat exchange tube 4 and the central cylinder 3 and the primary side coolant in the outer guide cylinder 5 is realized, and the temperature of the primary side coolant is further reduced.
From the above, among the heat exchanger structure that this application provided, the heat exchange is carried out with the coolant that once inclines in the pressure vessel jointly to the secondary side coolant in spiral heat exchange tube 4 and the center section of thick bamboo 3, and spiral heat exchange tube 4 and the reverse flow of coolant in the center section of thick bamboo 3 compare with prior art, have increased heat transfer area, have improved heat exchange efficiency. In addition, the heat exchanger has the advantages of compact structure, simple system, high heat transfer efficiency, reduced number of penetrating pieces and the like, and effectively reduces the manufacturing cost. Meanwhile, a primary side coolant pipeline is eliminated, and the LOCA accident risk is reduced.
It should be noted here that the inner channels of the spiral heat exchange tube 4 and the central cylinder 3 are independent from the inner space of the outer guide cylinder 5, i.e. the inner channels of the spiral heat exchange tube 4 and the central cylinder 3 are not communicated with the inner space of the outer guide cylinder 5, so as to prevent the coolant in the spiral heat exchange tube 4 and the central cylinder 3 from leaking. The spiral heat exchange tubes 4 and the inner channels of the central cylinder 3 are communicated with a coolant flow pipeline outside the pressure vessel, and are not limited herein.
Be provided with journal stirrup 8 on the outer wall of outer guide cylinder 5 to utilize journal stirrup 8 and pressure vessel inner wall fixed connection, realize whole heat exchanger and pressure vessel inner wall fixed connection. The main body pressure-bearing material of the heat exchanger is Incloy690, and the non-structural component is made of austenitic stainless steel or Incloy 690.
In order to further improve the heat exchange efficiency, a plurality of layers of spiral heat exchange tubes 4 are arranged in the gap between the central cylinder 3 and the outer guide cylinder 5 from inside to outside. In other words, a plurality of layers of spiral heat exchange tubes 4 are arranged in the gap between the central cylinder 3 and the outer guide cylinder 5, and the plurality of layers of spiral heat exchange tubes 4 are sequentially arranged along the direction from the central cylinder 3 to the outer guide cylinder 5.
The adjacent two layers of spiral heat exchange tubes 4 can be mutually independent, the multiple layers of spiral heat exchange tubes 4 are not communicated, and each layer of spiral heat exchange tube 4 is an independent coolant pipeline.
Or, two adjacent layers of spiral heat exchange tubes 4 can also be communicated, and the multiple layers of spiral heat exchange tubes 4 are sequentially communicated end to end.
In order to inhibit the generation of flow-induced vibration, the winding directions of the two adjacent layers of spiral heat exchange tubes 4 are opposite. Of course, the winding directions of the two adjacent layers of spiral heat exchange tubes 4 can also be the same, and are not limited herein.
Optionally, the helical heat exchange tubes 4 extend along equidistant spirals. The helix angle of the spiral heat exchange tube 4 can be 13-20 degrees. If the plane perpendicular to the axis of the central cylinder 3 is a first plane, the included angle between the tangent line of the axis of the spiral heat exchange tube 4 and the first plane is 13-20 degrees. Of course, the spiral angle of the spiral heat exchange tube 4 can be other values according to practical situations, and is not limited herein.
In order to facilitate the positioning of the spiral heat exchange tube 4, the heat exchanger further comprises a plurality of positioning frames 10. Every locating rack 10 includes filler strip 10a and arc buckle 10b, and the length direction of filler strip 10a is parallel with the length direction of a center section of thick bamboo, is provided with a plurality of tube slots along its length direction on the filler strip 10a, and the multiturn spiral heat exchange tube 4 of the same layer is blocked respectively and is established in a plurality of tube slots, and arc buckle 10b can block up the notch of tube slot to prevent that spiral heat exchange tube from breaking away from the tube slot. During processing, the spiral heat exchange tube 4 is placed in the tube groove of the filler strip 10a and then fixed with the filler strip 10a through spot welding by the arc-shaped buckle 10b outside the spiral heat exchange tube. When the next layer of spiral heat exchange tubes 4 are wound, a new filler strip 10a is fixed on the arc-shaped buckle 10b of the previous layer by spot welding, and then the previous work is repeated.
Each layer of spiral heat exchange tube 4 is fixed by one or more positioning frames 10, and the positioning frames 10 for fixing the same layer of spiral heat exchange tube 4 are distributed along the circumferential direction of the central cylinder 3.
The thickness of the padding strip 10a is adjusted according to the fluid resistance requirement, and is preferably 2-10 mm.
For the convenience of assembly, the heat exchanger also comprises a central liquid inlet pipe 3a communicated with the inlet of the central cylinder 3. The central liquid inlet pipe 3a is connected with the central cylinder 3 in sequence, and the coolant enters the central cylinder 3 after passing through the central liquid inlet pipe 3 a. The pipe diameter of the central liquid inlet pipe 3a can be smaller than that of the central cylinder 3.
Further, the central liquid inlet pipe 3a comprises a first section and a second section which are connected in sequence and are vertical to each other, and the first section of the central liquid inlet pipe 3a is coaxially connected with the central cylinder 3. So set up, increased heat transfer area in limited height and volume scope, improved heat exchange efficiency. Meanwhile, the central liquid inlet pipe 3a is more convenient to be communicated with a coolant pipeline outside the pressure vessel.
As shown in fig. 1-2, in the first embodiment of the present invention, the heat exchanger further includes a buffer tank 2 and a total outlet pipe 1, the buffer tank 2 is communicated with the outlet of the spiral heat exchange tube 4, and the total outlet pipe 1 is also communicated with the buffer tank 2. In this way, the coolant in the spiral heat exchange tube 4 enters the buffer tank 2 through the outlet of the spiral heat exchange tube 4, and the coolant in the buffer tank 2 is discharged out of the heat exchanger through the main outlet tube 1. The total outlet pipe 1 is perpendicular to the central cylinder 3, and the axis of the total outlet pipe 1 is perpendicular to the axis of the central cylinder 3. The first section of the central liquid inlet pipe 3a penetrates through the buffer tank 2, and the second section of the central liquid inlet pipe 3a penetrates through the main outlet pipe 1. So set up, increased heat transfer area in limited height and volume scope, improved heat exchange efficiency. Meanwhile, the communication between the main outlet pipe 1 and a coolant pipeline outside the pressure vessel is more convenient.
Wherein, the outlet of the spiral heat exchange tube 4 and the buffer tank 2 can be connected through a first tube plate 9. When the multilayer spiral heat exchange tubes 4 are independent of each other, the outlets of the heat exchange tubes are connected with the buffer tank 2 through the first tube plate 9, the structure is simple, and the cost is low. The central liquid inlet pipe 3a can penetrate through the first pipe plate 9 and is welded with the first pipe plate 9, the central liquid inlet pipe 3a and the central cylinder 3 can be welded, the first pipe plate 9 and the buffer tank 2 can be welded, and the total outlet pipe 1 and the buffer tank 2 are welded. The ends of the main outlet pipes 1 are connected to other coolant lines by flanges or the ends of the main outlet pipes 1 can be directly welded to other coolant lines.
As shown in fig. 3, in the first embodiment, the top of the buffer tank 2 may be sealed by a blind plate, and the blind plate is fixedly connected to the buffer tank 2 by a flange, so as to facilitate maintenance, pipe plugging, in-service inspection, and the like during operation.
As shown in fig. 3-4, in the second embodiment of the present invention, the portion of the outlet end of the spiral heat exchange tube 4 extending out of the outer guide cylinder 5 extends along the outer wall of the central liquid inlet tube 3 a. The spiral heat exchange tube 4 may include a spiral section wound outside the central tube 3 and an extension section protruded out of the outer guide cylinder 5. The extension section of the spiral heat exchange tube 4 extends along the outer wall of the central liquid inlet tube 3a, and the extension section of the spiral heat exchange tube 4 is L-shaped. So set up, increased heat transfer area in limited height and volume scope, improved heat exchange efficiency. Meanwhile, the spiral heat exchange tube 4 is more convenient to be communicated with a coolant pipeline outside the pressure vessel.
The outlet of the multilayer spiral heat exchange tube 4 is communicated with other coolant pipelines through a tube plate. The central liquid inlet pipe 3a is welded with the pipe plate. The central liquid inlet pipe 3a and the central cylinder 3 can also be welded.
As shown in fig. 5-6, in the third embodiment of the present invention, the heat exchanger further includes a buffer tank 2 and a total outlet pipe 1, the buffer tank 2 is communicated with the outlet of the spiral heat exchange tube 4, and the total outlet pipe 1 is also communicated with the buffer tank 2. In this way, the coolant in the spiral heat exchange tube 4 enters the buffer tank 2 through the outlet of the spiral heat exchange tube 4, and the coolant in the buffer tank 2 is discharged out of the heat exchanger through the main outlet tube 1. The total outlet pipe 1 is perpendicular to the central cylinder 3, and the axis of the total outlet pipe 1 is perpendicular to the axis of the central cylinder 3. The first section of central feed liquor pipe 3a passes buffer tank 2, and the second section of central feed liquor pipe 3a is located the outside of buffer tank 2 and is parallel with total exit tube 1. So set up, increased heat transfer area in limited height and volume scope, improved heat exchange efficiency. Meanwhile, the total outlet pipe 1 and the central liquid inlet pipe 3a are more convenient to be communicated with a coolant pipeline outside the pressure vessel.
Wherein, the outlet of the spiral heat exchange tube 4 and the buffer tank 2 can be connected through a first tube plate 9. When the multilayer spiral heat exchange tubes 4 are independent of each other, the outlets of the heat exchange tubes are connected with the buffer tank 2 through the first tube plate 9, the structure is simple, and the cost is low.
The central liquid inlet pipe 3a can penetrate through the first pipe plate 9 and is welded with the first pipe plate 9, the central liquid inlet pipe 3a and the central cylinder 3 can be welded, the first pipe plate 9 and the buffer tank 2 can be welded, and the total outlet pipe 1 and the buffer tank 2 are welded. The ends of the main outlet pipes 1 are connected to other coolant lines by flanges or the ends of the main outlet pipes 1 can be directly welded to other coolant lines.
In another embodiment, the heat exchanger may further include a central outlet pipe 3b communicating with the outlet of the central tube 3 and an end tank 6 communicating with the central outlet pipe 3b, and the inlet of the spiral heat exchange pipe 4 communicates with the end tank 6. The coolant in the central cylinder 3 enters the end tank 6, and the coolant in the end tank 6 enters the spiral heat exchange tubes 4. The pipe diameter of the central outlet pipe 3b can be smaller than that of the central cylinder 3, and the central outlet pipe 3b is coaxially connected with the central cylinder 3.
The inlet of the spiral heat exchange tube 4 and the end tank 6 can be connected through a second tube plate 7. When the multilayer spiral heat exchange tubes 4 are independent from each other, the inlets of the heat exchange tubes are connected with the end box 6 through the second tube plate 7, the structure is simple, and the cost is low. The second tubesheet 7 may be welded to the end tank 6 and the central tube 3.
Based on the heat exchanger that provides in the above-mentioned embodiment, the utility model also provides a reactor system, this reactor system includes arbitrary heat exchanger in the above-mentioned embodiment. Because the reactor system adopts the heat exchanger in the above embodiment, please refer to the above embodiment for the beneficial effect of the reactor system.
The reactor system comprises a pressure vessel and at least one heat exchanger in any one of the embodiments, wherein the heat exchanger is welded or flanged with a nozzle on the pressure vessel. A plurality of heat exchangers may be distributed along the pressure vessel wall depending on the power of the core within the pressure vessel. The primary side coolant naturally circulates from top to bottom outside the heat exchanger central cylinder 3 and the spiral heat exchange tubes 4, and the secondary side coolant forcibly circulates inside the heat exchanger central cylinder 3 and the spiral heat exchange tubes 4.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A heat exchanger, comprising:
a central cartridge (3), said central cartridge (3) having an inlet and an outlet;
the outer guide cylinder (5) is sleeved on the outer side of the central cylinder (3), the outer guide cylinder (5) is fixed relative to the central cylinder (3), and a gap is formed between the central cylinder (3) and the outer guide cylinder (5);
the spiral heat exchange tube (4) is arranged between the central cylinder (3) and the outer guide cylinder (5), the spiral heat exchange tube (4) is wound on the outer side of the central cylinder (3), and an inlet of the spiral heat exchange tube (4) is communicated with an outlet of the central cylinder (3).
2. The heat exchanger according to claim 1, characterized in that a plurality of layers of the spiral heat exchange tubes (4) are arranged inside the gap between the central cylinder (3) and the outer guide cylinder (5) from inside to outside;
the winding directions of the two adjacent layers of spiral heat exchange tubes (4) are opposite.
3. The heat exchanger according to claim 2, further comprising a plurality of positioning frames (10), wherein the positioning frames (10) comprise gasket strips (10a) and arc-shaped buckles (10b), the length direction of the gasket strips (10a) is parallel to the length direction of the central cylinder (3), a plurality of tube grooves are formed in the gasket strips (10a) along the length direction of the gasket strips, the spiral heat exchange tubes (4) in the same layer are respectively clamped in the tube grooves, and the arc-shaped buckles (10b) can block the notches of the tube grooves.
4. A heat exchanger according to claim 1, wherein the helical heat exchange tube (4) has a helix angle of 13 ° -20 °.
5. The heat exchanger according to claim 1, characterized in that it further comprises a central liquid inlet pipe (3a) communicating with the inlet of the central cylinder (3);
the central liquid inlet pipe (3a) comprises a first section and a second section which are sequentially connected and are mutually perpendicular, and the first section of the central liquid inlet pipe (3a) is coaxially connected with the central cylinder (3).
6. The heat exchanger according to claim 5, further comprising a buffer tank (2) communicating with an outlet of the spiral heat exchange tube (4) and a total outlet tube (1) communicating with the buffer tank (2); the outlet of the spiral heat exchange tube (4) is connected with the buffer tank (2) through a first tube plate (9);
the total outlet pipe (1) is perpendicular to the central cylinder (3), a first section of the central liquid inlet pipe (3a) penetrates through the buffer tank (2), and a second section of the central liquid inlet pipe (3a) penetrates through the total outlet pipe (1).
7. A heat exchanger according to claim 5, wherein the portion of the outlet end of the spiral heat exchange tube (4) extending out of the outer guide cylinder (5) is L-shaped and extends along the outer wall of the central liquid inlet tube (3 a).
8. The heat exchanger according to claim 5, further comprising a buffer tank (2) communicating with an outlet of the spiral heat exchange tube (4) and a total outlet tube (1) communicating with the buffer tank (2); the outlet of the spiral heat exchange tube (4) is connected with the buffer tank (2) through a first tube plate (9);
total exit tube (1) with center section of thick bamboo (3) mutually perpendicular, the first section of central feed liquor pipe (3a) is passed buffer tank (2), the second section of central feed liquor pipe (3a) is located the outside of buffer tank (2) and with total exit tube (1) is parallel.
9. The heat exchanger according to claim 1, further comprising a central outlet tube (3b) communicating with the outlet of the central tube (3) and an end tank (6) communicating with the central outlet tube (3b), the inlet of the spiral heat exchange tube (4) communicating with the end tank (6);
and the inlet of the spiral heat exchange tube (4) is connected with the end box (6) through a second tube plate (7).
10. A reactor system comprising a pressure vessel, characterized in that it further comprises at least one heat exchanger according to any of claims 1-9, which heat exchanger is welded or flanged to a nozzle on the pressure vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751636.5U CN214582648U (en) | 2021-04-13 | 2021-04-13 | Heat exchanger and reactor system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751636.5U CN214582648U (en) | 2021-04-13 | 2021-04-13 | Heat exchanger and reactor system with same |
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| Publication Number | Publication Date |
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| CN214582648U true CN214582648U (en) | 2021-11-02 |
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| CN202120751636.5U Active CN214582648U (en) | 2021-04-13 | 2021-04-13 | Heat exchanger and reactor system with same |
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- 2021-04-13 CN CN202120751636.5U patent/CN214582648U/en active Active
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| GR01 | Patent grant |