CN201090965Y - Detachable type external heat taking device - Google Patents
Detachable type external heat taking device Download PDFInfo
- Publication number
- CN201090965Y CN201090965Y CNU2006200326952U CN200620032695U CN201090965Y CN 201090965 Y CN201090965 Y CN 201090965Y CN U2006200326952 U CNU2006200326952 U CN U2006200326952U CN 200620032695 U CN200620032695 U CN 200620032695U CN 201090965 Y CN201090965 Y CN 201090965Y
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- China
- Prior art keywords
- pipe
- heat collector
- housing
- heat exchanger
- main casing
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- Expired - Lifetime
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
Disclosed is a detachable outer warmer, which is also called catalyst cooler, belonging to the temperature- controlling equipment of the chemical gas- solid reaction regeneration device. The utility model includes a casing, bushing- type heat exchanger bundles, a catalyst delivery pipe, a fluidizing gas distributor and an installation maintenance flange. In order to facilitate the maintenance, the shell body of the warmer (cooler) is divided into three parts: a top seal head, a bundle installation part and a lower main shell body, wherein, each part is separated by the flange; most bundles are welded on the installation part; the bundles and the shell body are connected by bushings, which can facilitate the replacement. During the maintaining process, only the seal head needs to be opened, without unpacking the whole bundles, so that the damaged heat exchanging tube can be drawn out from the bushing of the shell body and taken out from the opening of the seal head.
Description
Technical field
The utility model belongs to the heat transmission equipment technical field, is used for using afterheat of powder body generation steam, particularly the heat collector of petrochemical industry catalytic cracking unit regenerator.
Background technology
In heavy oil catalytic cracking process, the heat that catalyst regeneration produces surpasses the needed heat of reaction, and normal the employing is provided with the external warmer mode heat removal of (claiming catalyst cooler again), keeps the reaction heat balance.
The problem that existing external warmer device structure ubiquity is not easy to overhaul.The heat collector heat-exchanging tube bundle is made of numerous heat exchanger tubes, heat exchanger tube is fragile, existing external warmer but is that all heat exchanger tubes are welded into integral body, generally be welded on the end socket, in case certain heat exchanger tube damages, then need whole tube banks are hung out, particularly often need the crane of hundreds of ton ability to implement, quite difficulty large-scale plant.In the existing heat collector device structure, also be direct welding between heat exchanger tube and the housing, during replacing housing and lining all produced damage, be not easy to change.
The utility model content
The purpose of this utility model does not need large lifting equipment when being to provide a kind of maintenance, restrain detachable, the easily changeable external warmer of heat exchanger tube, its further purpose is to raise the efficiency.
For achieving the above object, the utility model adopts following technical scheme: a kind of detachable formula external warmer, comprise housing, establish the casing type heat exchanging pipe in the housing, the catalyst circulation carrier pipe, the catalyst mix pipe, the fluidizing gas distributor, it is characterized in that housing is divided into end socket with two pairs of flanges, the heat exchanger tube construction section, main casing three parts, main casing top is provided with the tube connector with regenerator, the catalyst circulation carrier pipe is arranged in the tube connector of the main casing first half and main casing and regenerator, and the catalyst mix pipe is arranged in the external warmer main casing.
The heat exchanger tube construction section can have cone, and the top also can be straight tube with less flange and the end socket of diameter, and two pairs of flange diameter are identical.
The part heat exchanger tube is installed in construction section, and part is installed on the end socket.Heat exchanger tube can be installed on the main casing sidewall.
Each heat exchanger tube and housing junction all are provided with sleeve pipe.Sleeve pipe plays two kinds of effects, and the one, after damaging, heat exchanger tube can make heat exchanger tube take out replacing separately, do not destroy housing and lining, not only convenient but also safety; The 2nd, sleeve pipe is exchanged heat pipe and is played the resiliency supported effect in housing, prevents that stressed the concentrating of housing weld from causing fracture.
Owing to only have the part heat-exchanging tube bundle to be installed in the top end socket, lifting weight significantly reduces when making maintenance.Only need take off this end socket during maintenance, the heat exchanger tube of other damages can take out in this end socket opening by root.
The middle and upper part is provided with the catalyst circulation carrier pipe in the external warmer main casing, and vertically place in housing this pipe lower part, top with the tube connector of regenerator in tilt to place.
The catalyst mix pipe is set in the external warmer main casing, and this pipe is vertically placed.Catalyst mix pipe upper end is at the position, boundary of the tube connector of main casing and heat collector and regenerator.Guide section is established in exit, catalytic mixing pipe upper end, the guide section outlet towards with the tube connector of regenerator.
External warmer housing top is provided with the fluidizing gas outlet.
In the utility model, the high temperature catalyst in the regenerator enters heat collector through connecting inclined tube, and the thermocatalyst in the heat collector is fluidized state and is cooled off by heat exchanger tube under the gas effect.Cryogenic liquid is managed in heat exchanger tube and is flow to heat exchanger tube outer tube bottom downwards, is heated in outer tube, upwards flows out.Heat collector is communicated with regenerator by connecting inclined tube, and the circulated air inlet pipe that the heat collector middle part is provided with can be sent the low temperature catalyst in the heat collector back to regenerator by catalyst transport, and the high temperature catalyst of equivalent then enters heat collector from linkage section.The inner member of set inhibition air accumulation can suppress air accumulation, increases the gas-solid contact, promote the catalyst exchange in the tube connector, improves exchange section lower end outlet catalyst temperature.Therefore, tube connector has the exchange of reinforcement and catalyst circulation function, can obviously improve heat capacity, improves heat collector inner catalyst temperature, improves heat exchange efficiency.Catalyst mix pipe of installing in the heat collector main casing and the conveying gas inlet pipe that is provided with below can in time be delivered to top to the low temperature catalyst of heat collector bottom, and the accelerator activator exchange improves the heat collector temperature of lower, improves heat exchange efficiency.The catalyst circulation pipe is controlled by different conveying gas inlet pipes with the catalyst mix pipe, and it is convenient to start, and is difficult for stopping up; Require pumped (conveying) medium pressure low, regulate more flexible.Heat collector main casing bottom is provided with two fluidized wind inlet pipes, each fluidized wind inlet pipe connects a gas distributor, when the needs load be lower than design load 30% the time, start a distributor, when needs loads greater than design load 70% the time, two distributors start simultaneously.The device operating flexibility increases, and regulates sensitiveer.
Description of drawings
Fig. 1,2 is the utility model external warmer structural representation.
Fig. 3 is heat exchanger tube and housing joint sleeve and connected mode schematic diagram.
Fig. 4 is a catalyst mix pipe schematic diagram.
Detailed description of main elements: 11. main casings, 12. heat exchanger tube construction sections, 13. cover heads, 14. external warmer and regenerator tube connector, 2. heat exchanger tube, 3. catalyst circulation carrier pipe, 31. the catalyst transport flue, 4. catalyst mix pipe, 41. catalyst transport flues, 5. fluidizing agent distributor pipe, 15. sleeve pipes, 16,17. partition flanges, 18. bolt, 19. fluidizing gas outlets, 20. linings, 21. external warmer and regenerator tube connector internals, 42. catalyst mix pipe guide sections.
The specific embodiment
The embodiment catalytic cracking unit requires heat-obtaining load 25MW with external warmer, produces the 4.0MPa saturated vapor, and the external warmer structure is:
Main casing (11) diameter 2500mm, end socket (13) specification is DN1700, and heat exchanger tube construction section (12) is tapered, and two row's heat exchanger tubes are installed on it, totally 30, one row is installed in ￠ 2500 vertical tube part positions, and another row is installed in conical section, and 8 heat exchanger tubes are installed on the cover head, heat exchanger tube (2) specification is ￠ 159, sleeve pipe (15) specification is ￠ 180, and gas discharge outlet (19) is DN300, is located at and 500mm place, DN1700 flange connecting below; Catalyst circulation carrier pipe DN200, the lower end is positioned at 600mm place, point of interface below under main casing and the regenerator tube connector, and the upper end enters regenerator inwall 300mm, catalyst mix pipe DN150.
During maintenance cover head (13) is pulled down, other each heat exchanger tubes can be pulled down in housing sleeve pipe (15) respectively, take out in the end socket opening, need not large-scale lifting appliance.Because the effect of sleeve pipe (15) need not destroy lining and housing wall when changing heat exchanger tube.
Claims (10)
1. detachable formula external warmer, comprise housing, establish the casing type heat exchanging pipe in the housing, the catalyst circulation carrier pipe, the catalyst mix pipe, the fluidizing gas distributor is characterized in that housing is divided into end socket with two pairs of flanges, the heat exchanger tube construction section, main casing three parts, main casing top is provided with the tube connector with regenerator, and the catalyst circulation carrier pipe is arranged in the tube connector of the main casing first half and main casing and regenerator, and the catalyst mix pipe is arranged in the external warmer main casing.
2. heat collector according to claim 1 is characterized in that the heat exchanger tube construction section of housing has cone.
3. heat collector according to claim 1 is characterized in that housing heat exchanger tube construction section is straight tube.
4. heat collector according to claim 1 is characterized in that heat exchanger tube is installed in end socket and construction section respectively.
5. heat collector according to claim 1 is characterized in that heat exchanger tube is installed on the main casing sidewall.
6. as heat collector as described in claim 4 or 5, it is characterized in that heat exchanger tube and housing junction are provided with sleeve pipe.
7. heat collector according to claim 1 is characterized in that the middle and upper part is provided with the catalyst circulation carrier pipe in the heat collector main casing, and vertically place in housing this pipe lower part, the top placement of tilting in the tube connector of heat collector and regenerator.
8. heat collector according to claim 1 is characterized in that being provided with in the main casing catalyst mix pipe.
9. as heat collector as described in the claim 8, it is characterized in that exit, catalyst mix pipe upper end is provided with guide section.
10. heat collector according to claim 1 is characterized in that housing top is provided with the fluidizing gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200326952U CN201090965Y (en) | 2006-09-29 | 2006-09-29 | Detachable type external heat taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200326952U CN201090965Y (en) | 2006-09-29 | 2006-09-29 | Detachable type external heat taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090965Y true CN201090965Y (en) | 2008-07-23 |
Family
ID=39862724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200326952U Expired - Lifetime CN201090965Y (en) | 2006-09-29 | 2006-09-29 | Detachable type external heat taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090965Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937386A (en) * | 2012-10-30 | 2013-02-20 | 青岛京润石化设计研究院有限公司 | Reaction heating method and device |
| CN103849425A (en) * | 2014-01-13 | 2014-06-11 | 洛阳智邦石化设备有限公司 | Novel external cooler with double-lifting structure |
| CN105043142A (en) * | 2015-06-12 | 2015-11-11 | 青岛京润石化工程有限公司 | Solid particle cooler |
| CN105385469A (en) * | 2015-12-11 | 2016-03-09 | 天津市天环精细化工研究所 | Catalyst cooler |
| CN106440870A (en) * | 2016-09-20 | 2017-02-22 | 洛阳明远石化技术有限公司 | External heat extraction device |
| CN110681318A (en) * | 2018-07-06 | 2020-01-14 | 中国科学院大连化学物理研究所 | Axial flow fixed bed reactor with built-in modular heat collector |
-
2006
- 2006-09-29 CN CNU2006200326952U patent/CN201090965Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937386A (en) * | 2012-10-30 | 2013-02-20 | 青岛京润石化设计研究院有限公司 | Reaction heating method and device |
| CN102937386B (en) * | 2012-10-30 | 2014-12-03 | 青岛京润石化设计研究院有限公司 | Reaction heating method and device |
| CN103849425A (en) * | 2014-01-13 | 2014-06-11 | 洛阳智邦石化设备有限公司 | Novel external cooler with double-lifting structure |
| CN105043142A (en) * | 2015-06-12 | 2015-11-11 | 青岛京润石化工程有限公司 | Solid particle cooler |
| CN105385469A (en) * | 2015-12-11 | 2016-03-09 | 天津市天环精细化工研究所 | Catalyst cooler |
| CN106440870A (en) * | 2016-09-20 | 2017-02-22 | 洛阳明远石化技术有限公司 | External heat extraction device |
| CN106440870B (en) * | 2016-09-20 | 2019-01-22 | 洛阳明远石化技术有限公司 | External warmer |
| CN110681318A (en) * | 2018-07-06 | 2020-01-14 | 中国科学院大连化学物理研究所 | Axial flow fixed bed reactor with built-in modular heat collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: QINGDAO JINGRUN PETROCHEMICAL ENGINEERING CO., LTD. Document name: Review of business letter |
|
| DD01 | Delivery of document by public notice |
Addressee: QINGDAO JINGRUN PETROCHEMICAL ENGINEERING CO., LTD. Document name: Notification of Approving Refund |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |
|
| EXPY | Termination of patent right or utility model |