CN202304493U - Combined heat exchanger - Google Patents
Combined heat exchanger Download PDFInfo
- Publication number
- CN202304493U CN202304493U CN2011203674987U CN201120367498U CN202304493U CN 202304493 U CN202304493 U CN 202304493U CN 2011203674987 U CN2011203674987 U CN 2011203674987U CN 201120367498 U CN201120367498 U CN 201120367498U CN 202304493 U CN202304493 U CN 202304493U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tail gas
- oxic
- gas
- waste heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model discloses a combined heat exchanger, which comprises at least two gas cooling devices in mutual serial connection, wherein the tube passes of the devices are the same medium, the case passes of the devices are two or more media, gas coolers comprise at least one tail gas heat exchanger and at least one oxidation gas waste heat boiler, and the tail gas heat exchanger and the oxidation gas waste heat boiler are in alternate arrangement. The combined heat exchanger has the advantages that the tail gas heat exchanger and the oxidation gas waste heat boiler are connected in series into a whole, the existing several heat exchangers are combined into one, the pipeline connecting resistance among the devices is effectively reduced, the investment is reduced, secondly, through the arrangement of a traverse baffle in the technical scheme, an annular disc type traverse baffle structure does not need to be adopted, and simultaneously, a heat exchange pipe can also be effectively prevented from generating vibration, so the device diameter is reduced to the maximum degree.
Description
Technical field
The utility model relates to the heat-transfer equipment of nitric acid production, particularly relates to the heat exchanger of oxic gas and tail gas in a kind of nitric acid production.
Background technology
At present, in two pressurization nitric acid technology of domestic introduction, all need handle through the heat exchanger of several platform independent to the heat transfer of oxic gas in the nitric acid production and tail gas; Connect through pipeline between each heat exchanger; Its floor space is big, invests hugely, and connects through pipeline and to exist pipeline to connect resistance; Secondly because operating pressure is low, resistance drop requires low, also must avoid the vibrations of pipe and cause device damage for large-scale plant especially; Therefore in existing heat exchanger; All adopt the baffle arrangement of circular disk type, yet adopt this structure, it can not comb on baffle gap; Therefore cause heat transmission equipment very big, invest also big.
The utility model content
The goal of the invention of the utility model is: the problem to above-mentioned existence, a kind of compact conformation is provided, and effectively pipeline connects resistance, reduction equipment diameter, the unitized exchanger of reducing investment outlay between the saving equipment.
The technical scheme of the utility model is achieved in that a kind of unitized exchanger; It is characterized in that: comprise at least two gas cooled equipment of series connection each other; Its tube side of said equipment is with a kind of medium; Shell side is two or more media, and said gas cooler is at least one tail gas heat exchanger and at least one oxic gas waste heat boiler, the alternate layout with the oxic gas waste heat boiler of said tail gas heat exchanger.
The described unitized exchanger of the utility model; Its said tail gas heat exchanger is two; Between said two tail gas heat exchanger, be provided with the oxic gas waste heat boiler; First tail gas heat exchanger, oxic gas waste heat boiler and second tail gas heat exchanger are connected successively; Be provided with the oxic gas import in said first tail gas heat exchanger away from oxic gas waste heat boiler one end; Be provided with the oxic gas outlet in said second tail gas heat exchanger away from oxic gas waste heat boiler one end, said first tail gas heat exchanger is provided with tail gas import and tail gas outlet, and said second tail gas heat exchanger is provided with tail gas import and tail gas outlet; Tail gas outlet on said second tail gas heat exchanger is communicated with the tail gas import on first tail gas heat exchanger; Be respectively arranged with some heat exchanger tubes that are interconnected in said first tail gas heat exchanger, oxic gas waste heat boiler and second tail gas heat exchanger, the heat exchanger tube in said first tail gas heat exchanger is communicated with the oxic gas import, and the heat exchanger tube in said second tail gas heat exchanger is communicated with the oxic gas outlet.
The described unitized exchanger of the utility model, it is provided with some groups of rod-type deflection plates in said tail gas heat exchanger, and said rod-type deflection plate is interwoven by some rod baffle and forms nettedly, and each mesh of its formation passes a heat exchanger tube should be arranged.
The described unitized exchanger of the utility model, the angle that its said cross one another two rod baffle form is 60 ° or 90 °.
The described unitized exchanger of the utility model, it is provided with some groups of deflection plates or said rod-type deflection plate in said oxic gas waste heat boiler.
The utility model is through being one with tail gas heat exchanger and the series connection of oxic gas waste heat boiler; Several present heat exchanger package are combined into one, and the pipeline between the saving equipment connects resistance effectively, has reduced investment; Secondly pass through the setting of baffle arrangement in the present technique scheme; Make its baffle arrangement that need not to adopt again circular disk type, can also effectively avoid heat exchanger tube to produce vibrations simultaneously, thereby dwindled the diameter of equipment to greatest extent.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional view of the utility model.
Mark among the figure: 1 is first tail gas heat exchanger, and 1a is the tail gas import of first tail gas heat exchanger, and 1b is the tail gas outlet of first tail gas heat exchanger; 2 is the oxic gas waste heat boiler, and 3 is second tail gas heat exchanger, and 3a is the tail gas import of second tail gas heat exchanger; 3b is the tail gas outlet of second tail gas heat exchanger, and 4 is the oxic gas import, and 5 are the oxic gas outlet; 6 is the rod-type deflection plate, and 7 is heat exchanger tube, and 7a is the heat exchanger tube in first tail gas heat exchanger; 7b is the heat exchanger tube in second tail gas heat exchanger, and 8 is rod baffle.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of unitized exchanger; Comprise at least two gas cooled equipment of series connection each other; Its tube side of said equipment is with a kind of medium; Shell side is two or more media, and said gas cooler is at least one tail gas heat exchanger and at least one oxic gas waste heat boiler, the alternate layout with the oxic gas waste heat boiler of said tail gas heat exchanger.
As shown in Figure 1; Said tail gas heat exchanger is two; Between said two tail gas heat exchanger, be provided with the oxic gas waste heat boiler; First tail gas heat exchanger 1, oxic gas waste heat boiler 2 and second tail gas heat exchanger 3 are connected successively; Be provided with oxic gas import 4 in said first tail gas heat exchanger 1 away from oxic gas waste heat boiler 2 one ends; Be provided with oxic gas outlet 5 in said second tail gas heat exchanger 3 away from oxic gas waste heat boiler 2 one ends, said first tail gas heat exchanger 1 is provided with tail gas import 1a and tail gas outlet 1b, and said second tail gas heat exchanger 3 is provided with tail gas import 3a and tail gas outlet 3b; Tail gas outlet 3b on said second tail gas heat exchanger 3 is communicated with the tail gas import 1a on first tail gas heat exchanger 1; Be respectively arranged with some heat exchanger tubes that are interconnected 7 in said first tail gas heat exchanger 1, oxic gas waste heat boiler 2 and second tail gas heat exchanger 3, the heat exchanger tube 7a in said first tail gas heat exchanger 1 is communicated with oxic gas import 4, and the heat exchanger tube 7b in said second tail gas heat exchanger 3 is communicated with oxic gas outlet 5.
Wherein, oxic gas is at tube side, and promptly in heat exchanger tube, oxic gas gets into from first tail gas heat exchanger, through the oxic gas waste heat boiler, is discharged by second tail gas heat exchanger; Tail gas is walked shell side, i.e. space between heat exchanger tube outer wall and the cooling device housing, and tail gas gets into from second tail gas heat exchanger, is discharged by first tail gas heat exchanger.In said process, oxic gas temperature when just getting into is about 500 ℃, and after the process heat exchange, it is raised to 400 ℃ with exhaust temperature from 20 ℃.
As shown in Figure 2; In said tail gas heat exchanger and oxic gas waste heat boiler 2, be respectively arranged with some groups of rod-type deflection plates 6; Said rod-type deflection plate 6 by some rod baffle 8 be interwoven form netted; Each mesh of its formation passes a heat exchanger tube 7 should be arranged, and the angle that wherein said cross one another two rod baffle 8 form is 60 ° or 90 °, and its angle angle is decided by the arrangement of heat exchanger tube.
The device diameters that adopts the 1200t/d nitric acid of this structure is Φ 2300mm, and the device diameters of ring dish-type is 3200mm.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. unitized exchanger; It is characterized in that: comprise at least two gas cooled equipment of series connection each other; Its tube side of said equipment is with a kind of medium; Shell side is two or more media, and said gas cooler is at least one tail gas heat exchanger and at least one oxic gas waste heat boiler, the alternate layout with the oxic gas waste heat boiler of said tail gas heat exchanger.
2. unitized exchanger according to claim 1; It is characterized in that: said tail gas heat exchanger is two; Between said two tail gas heat exchanger, be provided with the oxic gas waste heat boiler; First tail gas heat exchanger (1), oxic gas waste heat boiler (2) and second tail gas heat exchanger (3) are connected successively; Be provided with oxic gas import (4) in said first tail gas heat exchanger (1) away from oxic gas waste heat boiler (2) one ends; Be provided with oxic gas outlet (5) in said second tail gas heat exchanger (3) away from oxic gas waste heat boiler (2) one ends; Said first tail gas heat exchanger (1) is provided with tail gas import (1a) and tail gas outlet (1b); Said second tail gas heat exchanger (3) is provided with tail gas import (3a) and tail gas outlet (3b), and the tail gas outlet (3b) on said second tail gas heat exchanger (3) is communicated with the tail gas import (1a) on first tail gas heat exchanger (1), is respectively arranged with some heat exchanger tubes that are interconnected (7) in said first tail gas heat exchanger (1), oxic gas waste heat boiler (2) and second tail gas heat exchanger (3); Heat exchanger tube (7a) in said first tail gas heat exchanger (1) is communicated with oxic gas import (4), and the heat exchanger tube (7b) in said second tail gas heat exchanger (3) is communicated with oxic gas outlet (5).
3. unitized exchanger according to claim 2; It is characterized in that: in said tail gas heat exchanger, be provided with some groups of rod-type deflection plates (6); Said rod-type deflection plate (6) is interwoven by some rod baffle (8) and forms nettedly, and each mesh of its formation passes a heat exchanger tube (7) should be arranged.
4. unitized exchanger according to claim 3 is characterized in that: the angle that said cross one another two rod baffle (8) form is 60 ° or 90 °.
5. according to claim 3 or 4 described unitized exchangers, it is characterized in that: in said oxic gas waste heat boiler (2), be provided with some groups of deflection plates or said rod-type deflection plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203674987U CN202304493U (en) | 2011-09-30 | 2011-09-30 | Combined heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203674987U CN202304493U (en) | 2011-09-30 | 2011-09-30 | Combined heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304493U true CN202304493U (en) | 2012-07-04 |
Family
ID=46373376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203674987U Expired - Lifetime CN202304493U (en) | 2011-09-30 | 2011-09-30 | Combined heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775825A (en) * | 2018-05-24 | 2018-11-09 | 重庆美的通用制冷设备有限公司 | Heat-exchanging component and refrigeration system with it |
-
2011
- 2011-09-30 CN CN2011203674987U patent/CN202304493U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775825A (en) * | 2018-05-24 | 2018-11-09 | 重庆美的通用制冷设备有限公司 | Heat-exchanging component and refrigeration system with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101846467B (en) | Shell-tube heat exchanger | |
| CN103954153B (en) | The pure reverse stream pipe shell heat exchanger of multipaths | |
| CN202018225U (en) | Circular plate case type heat exchanger | |
| CN202993893U (en) | Efficient condenser | |
| CN202304493U (en) | Combined heat exchanger | |
| CN203132400U (en) | Vertical floating head type heat exchanger | |
| CN201210022Y (en) | Heat exchanger | |
| CN202770269U (en) | Tube bundle winding type heat exchanger | |
| CN202614035U (en) | Three-dimensional surrounding heat exchanger | |
| CN201327324Y (en) | Improved heat exchanger with traverse baffles | |
| CN201897405U (en) | U-shaped tubular heat exchanger | |
| CN101344363A (en) | Casing heat exchanger | |
| CN203731899U (en) | Heat exchanger with spiral finned coil | |
| CN103075870A (en) | Novel efficient steam heater | |
| CN109405590B (en) | High-efficient heat exchanger of netted pipe layer of hexagon mesh screen | |
| CN201935610U (en) | Tubular heat exchanger | |
| CN202770061U (en) | Shell-and-tube heat exchanger with multiple fluorine paths and tubes distributed in series | |
| CN202660940U (en) | Spiral enhanced heat transfer tubular heat exchanger | |
| CN202188780U (en) | Row pipe type oil cooler | |
| CN201964802U (en) | Flat tube heat exchanger | |
| CN201803617U (en) | Novel heat exchanger | |
| CN206235200U (en) | The outer guide baffle rod U pipes pure contra-flow heat exchanger of U shells | |
| CN201173725Y (en) | High-temperature vapour water heat exchanger | |
| CN201165960Y (en) | Detachable type interstage cooler of natural gas compressor | |
| CN216144234U (en) | Double-layer pipe plate structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |