CN101446474B - Casing combined type anti-clogging raw oil heat exchanger - Google Patents
Casing combined type anti-clogging raw oil heat exchanger Download PDFInfo
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- CN101446474B CN101446474B CN2008102496241A CN200810249624A CN101446474B CN 101446474 B CN101446474 B CN 101446474B CN 2008102496241 A CN2008102496241 A CN 2008102496241A CN 200810249624 A CN200810249624 A CN 200810249624A CN 101446474 B CN101446474 B CN 101446474B
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Abstract
The invention relates to a casing combined type anti-clogging raw oil heat exchanger. A front end socket is connected with a front tube plate (1), and a straight partition plate (1) is welding on thefront end socket and partitions the front end socket into a cold oil distribution chamber and a cold oil collection chamber. The front tube plate (1) is fixedly connected with a heat exchange tube bundle (1). A shell is welded on the lower side of the front tube plate (1) to form a shell chamber, and a straight partition plate (2) partitions the shell chamber into a hot oil distribution chamber anda hot oil collection chamber. A front tube plate (2) is fixedly connected with a heat exchange tube bundle (2), and a rear tube plate is fixedly connected with the heat exchange tube bundle (2) andfo rms a hot oil intermediate chamber with a rear end socket. The tubes of the heat exchange tube bundle (1) pass through the heat exchange tube bundle (2) to enter the hot oil intermediate chamber. The lower ends of the tubes of the heat exchange tube bundle (1) are connected through U-shaped tubes. A cold oil inlet and a cold oil outlet are welded on the front end socket, a hot oil inlet and a hot oil outlet are welding on the shell, and a dirt cleaning port is arranged on the rear end socket. The heat exchanger puts away the heat radiation structure in which coil oil passes through tube passand hot oil passes through shell pass, and solves the clogging problem with the casing structure in which hot oil passes through annular space and cold oil passes through the inner tubes so as to form counter-current flow, thereby resulting in high heat exchange efficiency and low energy consumption. The heat exchanger can be widely used for heat exchange in dehydration, transportation and refining processes of raw oil.
Description
Technical field
The invention belongs to the crude heat exchanger technical field, more particularly relate to the design and the innovation of casing combined type anti-clogging raw oil heat exchanger.
Background technology
In oil, petrochemical industry, in the dehydration of crude oil, conveying, refining process, often need cold crude oil and deep fat intensification heat exchange.Crude heat exchanger is a kind of important basic equipment.
Traditional crude heat exchanger generally comprise shell, shell two ends end socket, be welded on cold crude oil import and outlet on the front head, be welded on pyrogen oil inlet on the shell and outlet, parts such as heat exchanger tube, longitudinal baffle.Cold crude oil by tube sides such as heat exchanger tube flow to, outflow heat exchanger, pyrogen oil by shell side flow to, outflow heat exchanger, finish exchange heat.
Owing to adopt the shell and tube heat exchange, and have wax and other impurity dirt in the crude oil, and the microparticulate of dirt is difficult to the place to go in crude oil, thereby heat exchanger stops up more serious.And then cause the shell side resistance of heat exchanger to increase, and heat exchange efficiency reduces, and energy consumption increases.
The patent No. be ZL00210632.9 number, be called " a kind of oil-oil heat exchanger " patent based on above-mentioned traditional structure, a kind of technology of stopping up of preventing is disclosed.It attempts to prevent to stop up with the flow velocity of spiral raising crude oil.But effect still can be not desirable.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned shortcoming and defect, and a kind of casing combined type anti-clogging raw oil heat exchanger is provided.It has been abandoned traditional cold oil and has walked the heat exchange structure that tube side, deep fat are walked shell side, with sleeve combination, deep fat walk annular space, cold oil is walked interior pipe, two fluid streams counter-current flow structures, can solve blockage problem well, thereby improve heat exchange efficiency, reduce energy consumption.Can be widely used in the intensification heat exchange of cold crude oil in the petrochemical industry dehydration of crude oil, conveying, the refining process.
In order to achieve the above object, the present invention includes shell, former and later two flanged (FLGD) end sockets, be welded on Cold and Hot Crude Oils import and outlet and heat exchanger tube on end socket and the shell.Be welded with straight baffle one in the front head, straight baffle one compiles the chamber with cold oil distributing chamber and the cold oil that front head is separated into symmetry.Front head is connected with front tube sheet one with securing member, and heat-exchanging tube bundle one is connected on the front tube sheet one.Be welded with one section shell below the front tube sheet one, the lower surface of shell is welded with flange, and this flange is connected with front tube sheet two with securing member.Front tube sheet one and shell and front tube sheet two constitutes the shell chambers, is welded with straight baffle two in the shell chamber on the position corresponding with straight baffle one, and the shell chamber is separated into deep fat distributing chamber to straight baffle two and deep fat compiles the chamber.The heat-exchanging tube bundle two that is connected on the front tube sheet two, heat-exchanging tube bundle two correspondences are sleeved on heat-exchanging tube bundle one outside.The bottom of heat-exchanging tube bundle two back tube sheet that is being connected, the flange on back tube sheet and the rear head are connected as a single entity with securing member and form the deep fat medial compartment.Each pipe of heat-exchanging tube bundle one enters the deep fat medial compartment after passing from each pipe of correspondence of heat-exchanging tube bundle two.Each pipe that is communicated with cold oil distributing chamber in the heat-exchanging tube bundle one is connected with the U-shaped pipe in twos with the lower end of each pipe that is communicated with the cold oil chamber of compiling.Be welded with the outlet of cold oil import and cold oil on the front head.Be welded with hot oil inlet and hot oil outlet on the shell.The rear head center is provided with the dirt clean-up port.
The lower end of each pipe is connected with the demountable tube joint with the U-shaped pipe in the heat-exchanging tube bundle one.Be convenient to maintenance, maintenance.
Heat-exchanging tube bundle one and the heat-exchanging tube bundle two that is sleeved on its outside are overlooked and are equilateral triangle or square profile.During work, cold oil enters cold oil distributing chamber from the cold oil import, and is distributed to each heat exchanger tube that is communicated with cold oil distributing chamber in the heat-exchanging tube bundle one, enters cold oil by the U-shaped pipe again and compiles the chamber, finally from cold oil outlet output.Deep fat enters deep fat distributing chamber from hot oil inlet, and is distributed to each heat exchanger tube that is communicated with deep fat distributing chamber in the heat-exchanging tube bundle two, and the sleeve pipe annular space that forms in twos from heat-exchanging tube bundle one and heat-exchanging tube bundle two enters the deep fat medial compartment again.Then by the deep fat medial compartment then the sleeve pipe annular space that enters the heat-exchanging tube bundle two that is communicated with the deep fat chamber of compiling and heat-exchanging tube bundle one formation enters deep fat compiles the chamber, finally export from hot oil outlet.The heat exchange that is Cold and Hot Crude Oils is undertaken by a series of heat exchange sleeve, and deep fat is walked annular space, and cold oil is walked interior pipe, two fluid streams counter-current flow.
The rear head center is provided with the dirt clean-up port.In the heat transfer process, the contained impurity dirt of pyrogen oil is deposited in the bottom gradually.Open the dirt clean-up port, just can emit cleaning, thereby can avoid stopping up, reduce the flow resistance of crude oil, improve heat exchange efficiency, reduce energy consumption.
Task of the present invention comes to this and finishes.
The present invention has abandoned traditional cold oil and has walked the heat exchange structure that tube side, deep fat are walked shell side, has solved blockage problem well with the sleeve combination structure, and deep fat is walked annular space, and cold oil is walked interior pipe, and two fluid streams counter-current flow have improved heat exchange efficiency, have reduced energy consumption.It can be widely used in the intensification heat exchange of cold crude oil in the petrochemical industry dehydration of crude oil, conveying, the refining process.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment 1.A kind of casing combined type anti-clogging raw oil heat exchanger, as shown in Figure 1.It comprises shell 3, former and later two flanged (FLGD) end sockets, is welded on Cold and Hot Crude Oils import and outlet and heat exchanger tube on end socket and the shell 3.Be welded with straight baffle 1 in the front head 1, straight baffle 1 compiles chamber 20 with the cold oil distributing chamber 17 that front head 1 is separated into symmetry with cold oil.Front head 1 usefulness securing member is connected with front tube sheet 1, and heat-exchanging tube bundle 1 is connected on the front tube sheet 1.Be welded with one section shell 3 below the front tube sheet 1, the lower surface of shell 3 is welded with flange, and this flange is connected with front tube sheet 24 with securing member.Front tube sheet 1 and shell 3 and front tube sheet 24 constitutes the shell chambers, is welded with straight baffle 2 21 in the shell chamber on the position corresponding with straight baffle 1, and straight baffle 2 21 is separated into deep fat distributing chamber 18 with the shell chamber and compiles chamber 22 with deep fat.The heat-exchanging tube bundle 2 10 that is connected on the front tube sheet 24, heat-exchanging tube bundle 2 10 correspondences are sleeved on the outside of heat-exchanging tube bundle 1.The bottom of heat-exchanging tube bundle 2 10 back tube sheet 5 that is being connected, back tube sheet 5 are connected as a single entity with securing member with flange on the rear head 6 and form deep fat medial compartment 19.Each pipe of heat-exchanging tube bundle 1 enters deep fat medial compartment 19 after passing from each pipe of correspondence of heat-exchanging tube bundle 2 10.Each pipe that is communicated with cold oil distributing chamber 17 among the heat-exchanging tube bundle I9 be connected in twos with U-shaped pipe 11 with lower end that cold oil compiles each pipe that chamber 20 is communicated with.Be welded with cold oil import 15 and cold oil outlet 16 on the front head 1.Be welded with hot oil inlet 13 and hot oil outlet 14 on the shell 3.Rear head 6 centers are provided with dirt clean-up port 12.
The lower end of each pipe is connected with demountable tube joint 23 with U-shaped pipe 11 in the heat-exchanging tube bundle 1.
Heat-exchanging tube bundle 1 and the heat-exchanging tube bundle 2 10 that is sleeved on its outside are overlooked and are equilateral triangle or square profile.This distribution mode is more reasonable, helps heat exchange.
During work, cold oil enters cold oil distributing chamber 17 from cold oil import 15, and is distributed to each heat exchanger tube that is communicated with cold oil distributing chamber 17 in the heat-exchanging tube bundle 1, enters cold oil by U-shaped pipe 11 again and compiles chamber 20, finally from cold oil outlet 16 outputs.Deep fat enters deep fat distributing chamber 18 from hot oil inlet 13, and is distributed to each heat exchanger tube that is communicated with deep fat distributing chamber 18 in the heat-exchanging tube bundle 2 10, and the sleeve pipe annular space 7 that forms in twos from heat-exchanging tube bundle 1 and heat-exchanging tube bundle 2 10 enters deep fat medial compartment 19 again.Then by deep fat medial compartment 19 then enter and compile sleeve pipe annular space 7 that heat-exchanging tube bundle 2 10 that chamber 22 is communicated with and heat-exchanging tube bundle 1 form with deep fat and enter deep fat and compile chamber 22, finally export from hot oil outlet 14.The heat exchange that is Cold and Hot Crude Oils is undertaken by a series of heat exchange sleeve, and deep fat is walked annular space 7, pipe 9, two fluid streams counter-current flow in cold oil is walked.
Embodiment 2.A kind of casing combined type anti-clogging raw oil heat exchanger.The diameter of outer cover of heat exchanger is 600mm, and the diameter of each pipe is 25mm in the heat-exchanging tube bundle one, and the diameter of each pipe is 38mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 346.2mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 416.8mm
2, heat-exchanging tube bundle one is 121 with the sleeve pipe of heat-exchanging tube bundle two.All the other are with embodiment 1.
Embodiment 3.A kind of casing combined type anti-clogging raw oil heat exchanger.The diameter of outer cover of heat exchanger is 1000mm, and the diameter of each pipe is 38mm in the heat-exchanging tube bundle one, and the diameter of each pipe is 57mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 907.5mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 989.1mm
2, heat-exchanging tube bundle one is 163 with the sleeve pipe of heat-exchanging tube bundle two.All the other are with embodiment 1.
Embodiment 4.A kind of casing combined type anti-clogging raw oil heat exchanger.The diameter of outer cover of heat exchanger is 2000mm, and the diameter of each pipe is 76mm in the heat-exchanging tube bundle one, and the diameter of each pipe is 108mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 3629.8mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 3315.8mm
2, heat-exchanging tube bundle one is 187 with the sleeve pipe of heat-exchanging tube bundle two.All the other are with embodiment 1.
Embodiment 5.A kind of casing combined type anti-clogging raw oil heat exchanger.The diameter of outer cover of heat exchanger is 3000mm, and the diameter of each pipe is 89mm in the heat-exchanging tube bundle one, and the diameter of each pipe is 133mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 5150.4mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 6845.2mm
2, heat-exchanging tube bundle one is 283 with the sleeve pipe of heat-exchanging tube bundle two.All the other are with embodiment 1.
The tube pitch of embodiment 2～5 is minimum for respectively managing 1.2 times of diameter in the heat-exchanging tube bundle two.
Claims (7)
1. casing combined type anti-clogging raw oil heat exchanger, comprise shell, former and later two flanged (FLGD) end sockets, be welded on Cold and Hot Crude Oils import and outlet and heat exchanger tube on end socket and the shell, it is characterized in that being welded with in the front head straight baffle one, straight baffle one compiles the chamber with cold oil distributing chamber and the cold oil that front head is separated into symmetry, front head is connected with front tube sheet one with securing member, heat-exchanging tube bundle one is connected on the front tube sheet one, be welded with one section shell below the front tube sheet one, the lower surface of shell is welded with flange, this flange is connected with front tube sheet two with securing member, front tube sheet one and shell and front tube sheet two constitute the shell chamber, on the position corresponding, be welded with straight baffle two in the shell chamber with straight baffle one, the shell chamber is separated into deep fat distributing chamber to straight baffle two and deep fat compiles the chamber, heat-exchanging tube bundle two is connected on the front tube sheet two, heat-exchanging tube bundle two correspondences are sleeved on heat-exchanging tube bundle one outside, the bottom of heat-exchanging tube bundle two back tube sheet that is being connected, flange on back tube sheet and the rear head is connected as a single entity with securing member and forms the deep fat medial compartment, each pipe of heat-exchanging tube bundle one enters the deep fat medial compartment after passing from each pipe of correspondence of heat-exchanging tube bundle two, each pipe that is communicated with cold oil distributing chamber in the heat-exchanging tube bundle one is connected with the U-shaped pipe in twos with the lower end of each pipe that is communicated with the cold oil chamber of compiling, be welded with the outlet of cold oil import and cold oil on the front head, be welded with hot oil inlet and hot oil outlet on the shell, the rear head center is provided with the dirt clean-up port.
2. according to the described casing combined type anti-clogging raw oil heat exchanger of claim 1, it is characterized in that the lower end of each pipe in the said heat-exchanging tube bundle one is connected with the demountable tube joint with the U-shaped pipe.
3. according to claim 1 or 2 described casing combined type anti-clogging raw oil heat exchangers, the heat-exchanging tube bundle two that it is characterized in that said heat-exchanging tube bundle one and be sleeved on its outside is overlooked and is equilateral triangle or square profile.
4. according to the described casing combined type anti-clogging raw oil heat exchanger of claim 3, when the diameter that it is characterized in that said outer cover of heat exchanger is 600mm, the diameter of each pipe is 25mm in the heat-exchanging tube bundle one, the diameter of each pipe is 38mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 346.2mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 416.8mm
2, heat-exchanging tube bundle one is 121 with the sleeve pipe of heat-exchanging tube bundle two.
5. according to the described casing combined type anti-clogging raw oil heat exchanger of claim 3, when the diameter that it is characterized in that said outer cover of heat exchanger is 1000mm, the diameter of each pipe is 38mm in the heat-exchanging tube bundle one, the diameter of each pipe is 57mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 907.5mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 989.1mm
2, heat-exchanging tube bundle one is 163 with the sleeve pipe of heat-exchanging tube bundle two.
6. according to the described casing combined type anti-clogging raw oil heat exchanger of claim 3, when the diameter that it is characterized in that said outer cover of heat exchanger is 2000mm, the diameter of each pipe is 76mm in the heat-exchanging tube bundle one, the diameter of each pipe is 108mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 3629.8mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 3315.8mm
2, heat-exchanging tube bundle one is 187 with the sleeve pipe of heat-exchanging tube bundle two.
7. according to the described casing combined type anti-clogging raw oil heat exchanger of claim 3, when the diameter that it is characterized in that said outer cover of heat exchanger is 3000mm, the diameter of each pipe is 89mm in the heat-exchanging tube bundle one, the diameter of each pipe is 133mm in the heat-exchanging tube bundle two, and the cross-sectional area of each pipe is 5150.4mm in the heat-exchanging tube bundle one
2, the annular space cross-sectional area is 6845.2mm
2, heat-exchanging tube bundle one is 283 with the sleeve pipe of heat-exchanging tube bundle two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102496241A CN101446474B (en) | 2008-12-25 | 2008-12-25 | Casing combined type anti-clogging raw oil heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102496241A CN101446474B (en) | 2008-12-25 | 2008-12-25 | Casing combined type anti-clogging raw oil heat exchanger |
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| Publication Number | Publication Date |
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| CN101446474A CN101446474A (en) | 2009-06-03 |
| CN101446474B true CN101446474B (en) | 2010-04-07 |
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| CN2008102496241A Expired - Fee Related CN101446474B (en) | 2008-12-25 | 2008-12-25 | Casing combined type anti-clogging raw oil heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313464A (en) * | 2010-07-01 | 2012-01-11 | 奎洋企业股份有限公司 | Double-pipe type heat-exchanger |
| CN101943526A (en) * | 2010-09-29 | 2011-01-12 | 中原工学院 | Dual-heat source multi-shell-pass counter-current speed-increasing shell and tube heat exchanger |
| CN103123229A (en) * | 2013-03-26 | 2013-05-29 | 江苏亚星波纹管有限公司 | Oil water cooler |
| CN103453782B (en) * | 2013-09-18 | 2015-01-28 | 南京都乐制冷设备有限公司 | Three-in-one shell and tube oil-gas heat exchanger |
| CN105180682A (en) * | 2015-09-08 | 2015-12-23 | 洛阳明远石化技术有限公司 | Heat exchanger having nonmetal heat exchange component |
| CN105241281A (en) * | 2015-09-08 | 2016-01-13 | 洛阳明远石化技术有限公司 | Heat exchanger provided with non-metal heat exchange pipe bundle |
| RU2648394C2 (en) * | 2016-02-24 | 2018-03-26 | Андрей Витальевич Билан | Water chamber of a horizontal line heater |
| CN109945685A (en) * | 2018-02-08 | 2019-06-28 | 淄博河轩化工设备有限公司 | A kind of shell and tube heat exchange equipment |
| RU2697213C1 (en) * | 2018-11-06 | 2019-08-13 | Александр Геннадьевич Шершевский | Vertical shell-and-tube heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1331202A (en) * | 1971-01-26 | 1973-09-26 | Svenska Maskinverken Ab | Heat exchanger for dividing one medium into two parallel main streams |
| EP0031919A1 (en) * | 1979-12-21 | 1981-07-15 | Hoechst Aktiengesellschaft | Annular space tube bundle heat exchanger |
| CN2327981Y (en) * | 1998-04-30 | 1999-07-07 | 黄大林 | Spiral pipe heat exchanger |
| CN201062927Y (en) * | 2007-06-05 | 2008-05-21 | 杨永安 | Shell-pipe heat exchanger |
-
2008
- 2008-12-25 CN CN2008102496241A patent/CN101446474B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1331202A (en) * | 1971-01-26 | 1973-09-26 | Svenska Maskinverken Ab | Heat exchanger for dividing one medium into two parallel main streams |
| EP0031919A1 (en) * | 1979-12-21 | 1981-07-15 | Hoechst Aktiengesellschaft | Annular space tube bundle heat exchanger |
| CN2327981Y (en) * | 1998-04-30 | 1999-07-07 | 黄大林 | Spiral pipe heat exchanger |
| CN201062927Y (en) * | 2007-06-05 | 2008-05-21 | 杨永安 | Shell-pipe heat exchanger |
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| CN101446474A (en) | 2009-06-03 |
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Granted publication date: 20100407 Termination date: 20111225 |