CN101354218B - Detachable type high-efficiency casing heat exchanger - Google Patents
Detachable type high-efficiency casing heat exchanger Download PDFInfo
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- CN101354218B CN101354218B CN2008101569461A CN200810156946A CN101354218B CN 101354218 B CN101354218 B CN 101354218B CN 2008101569461 A CN2008101569461 A CN 2008101569461A CN 200810156946 A CN200810156946 A CN 200810156946A CN 101354218 B CN101354218 B CN 101354218B
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- tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
Abstract
The invention relates to a detachable efficient double-pipe heat exchanger, in particular to an efficient double-pipe heat exchanger which comprises an efficient heat exchange tube, a shell body, a tube plate, a lap joint flange, a connecting elbow, a shell flange, a sealing material, a bolt, a screw, a gasket and the like, more particularly, a detachable efficient double-pipe heat exchanger. When a heat-exchange tube bundle is required to be replaced, a sealing head can be detached only by loosing bolt connecting suites at two sides of the flanges of the shell body, the tube bundle is drawn out of the shell body, then whether the heat exchange tube is corrupted is checked, the respective corrupted heat exchange tube is replaced, and if the tube bundle has scale-formation, the tube bundle just needs washing without need to replace other parts, thereby greatly improving the cost of operation and maintenance and improving operation efficiency. The double-pipe heat exchanger of the invention, adopting the efficient heat exchange tube with better heat transmission effect, is favorable to improve heat exchange efficiency, has simple structure, convenient manufacture and installation, thus being widely applied to industries like petrifaction, chemistry, metallurgy and electricity and the like.
Description
Technical field
The present invention relates to a kind of double pipe heat exchanger, especially a kind of double pipe heat exchanger that utilizes efficient heat-exchanging pipe, housing, tube sheet, lap joint flange, connecting bend, shell flange, encapsulant and bolt, nut, packing ring etc. to form, specifically a kind of detachable type high-efficiency casing heat exchanger is widely used in industries such as petrochemical industry, chemical industry, metallurgy, electric power.
Background technology
At present, in many fields such as productive lifes, all consuming big energy every day.For heat energy is utilized effectively, reduce heat loss in the transmittance process, improve equipment thermal efficiency, the heat exchanger heat transfer process is strengthened, efficient improves; Reduce equipment occupation space to reach, reduce metal wastage or fuel savings, the voluminous steam of device fabrication or make fluid heat up, cool off or realize the purposes such as abundant recovery of low value waste heat rapidly.Strengthen the heat transfer measure and mainly contain two, promptly strengthen heat transfer temperature difference and reduce heat transfer resistance.Be subjected to the restriction of factors such as technology, environment, material, the heat transfer temperature in the industrial equipment generally can not arbitrarily change.Strengthen heat transfer temperature difference and also can increase irreversible loss, do not adopt in a lot of occasions so strengthen heat transfer by the increase heat transfer temperature difference.Heat transfer resistance is made up of a plurality of series connection links, reduces the heat transfer resistance of the maximum link of thermal resistance, to improving the heat transfer coefficient most pronounced effects.
Heat exchanger metal material thermal conductivity factor is big, and thickness is little, and thermal resistance is lower.Improve flow velocity in addition, strengthen disturbance and can reduce heat transfer resistance.But flow velocity greatly then mechanical power loss is also big, so enhance fluid disturbance, attenuate and breakable layer laminar sublayer have become the long-term insistent main direction of people, as bellows, conduit pipe, winding pipe, screwed pipe, finned tube etc., attenuate and destroyed laminar sublayer greatly, heat transfer coefficient is than higher.
The ubiquitous problem of heat exchanger is the easy fouling of shell side now, reduces heat exchange efficiency greatly.Bow type deflection plate is two baffling passage break-in transitional regions, and fluid is got the shortest oblique advancing, so in deflection plate and heat exchanger shell pass inwall joint, form the triangle space that medium is static relatively dorsad on the direction of shell side media flow.This space is the medium stagnant area, the flow regime of medium is very unfavorable for conducting heat, it is very poor to be in this interval tube surface heat exchange, this just is equivalent to reduce a part of heat exchange area, and in this zone,, and contain impurity in the medium and be easy in this deposition, fouling because the viscosity of medium is higher, the outer tube surface thermal resistance is increased, and the exchange capability of heat of heat exchanger is further weakened; Need periodic inspection to clean.The cycle of operation of heat exchanger was generally 1～3 month, caused maintenance, cleaned frequently, and the device operating cost increases.
Detachable type high-efficiency casing heat exchanger is compared with other heat exchanger, has better comprehensive performance: than common tubulation class heat exchanger good effect of heat exchange: the heat exchange of (1) annular flow film, the heat exchange thermal resistance is low, heat transfer coefficient height, good heat-transfer, energy savings.(2) annular flow film layer heat exchange, the rate of heat transfer height can be realized rapid heat cycle, satisfies specific (special) requirements.(3) heat exchanger tube is structures such as interior ripple male-pipe, bellows, conduit pipe, screwed pipe, bellows tube and high heat-flux pipe, in order to carry out tube side medium augmentation of heat transfer, has realized pipe, the synchronous augmentation of heat transfer of shell side two media.(4) a kind of removable new structure of design, its U type high-efficiency casing heat exchanger can be extracted out from housing, cleans in order to carry out the shell side tube bank, improves heat exchange efficiency.
Heat exchanger is particularly huge in the use amount of oil, chemical field in national economy.But industry in exchange heat pipe serious corrosion; for example in chlor-alkali industry; because the influence of medium and stray electrical current; heat exchanger is the corrosion especially severe of heat exchanger tube particularly; in case heat exchanger tube is corroded, whole heat exchanger just is done for, and has caused the great wasting of resources like this; annual according to statistics national chlor-alkali plant all will expend millions of units at this point, and this does not also comprise maintenance and shuts down the loss that causes.If heat exchanger tube adopts dismountable mode to connect, just can regularly exchange heat pipe and clean and change, so not only economize on resources but also reduce production costs.Be badly in need of a kind of detachable type high-efficiency casing heat exchanger of exploitation for this reason,, reduce the wasting of resources to greatest extent to solve heat exchanger tube high efficient heat exchanging and removable problem.
Summary of the invention
The objective of the invention is at existing bushing type pipe parallel operation efficient lowly, heat exchanger tube damages with regard to need to be scrapped whole equipment and causes the problem of serious waste of resources, designs a kind of sleeve pipe and changes detachable type high-efficiency casing heat exchanger easily.
Technical scheme of the present invention is:
A kind of detachable type high-efficiency casing heat exchanger, comprise U type efficient heat-exchanging pipe 12, two straight lengths (can parallel also can be not parallel) that it is characterized in that described U type efficient heat-exchanging pipe 12 are installed in respectively in the corresponding shell 4 (housing 4 can be arranged in parallel accordingly and also can not parallelly arrange), the two ends of housing 4 link to each other with end cap flange 3 with corresponding shell flange 6 respectively, wherein end cap flange 3 is the shared flange of two housings 4, one in two housings 4 is connected with material inlet 5, another is connected with material outlet 10, the entrance point of U type efficient heat-exchanging pipe 12 and the port of export are separately fixed on separately the tube sheet 18, the tube sheet 18 and the shell flange 6 of entrance end, lap joint flange 14, mounting flange 15 links to each other by bolt, lap joint flange 14 is installed between shell flange 6 and inlet flange 7 or the mounting flange 15, mounting flange 16 is connected with inlet flange 7 or mounting flange 15, inlet flange 7 is connected with inlet cone 8, and outlet(discharge) flange 7 ' is connected with outlet cone 9; The elbow part cover of U type efficient heat-exchanging pipe 12 is equipped with end casing 1, and end casing 1 links to each other with adpting flange 2, and adpting flange 2 links to each other with end cap flange 3, end cap flange 3, adpting flange 2 and the end casing 1 common passage of forming two housings 4 of a connection.
There are two on the tube sheet 18 of described entrance point and are connected and fixed flange 15,16, at this moment, shell flange 6, lap joint flange 14, mounting flange 15, mounting flange 16 are arranged on the tube sheet 18, one of them mounting flange 15 links to each other with lap joint flange 14 with shell flange 6, and another mounting flange 16 directly links to each other with inlet flange 7.
The quantity of described U type efficient heat-exchanging pipe 12 be one or several more than, link to each other by connecting bend 20 between adjacent two U type efficient heat-exchanging pipes 12, adhere to separately between two adjacent housings 4 of two U type efficient heat-exchanging pipes 12 and link to each other to realize the perforations of material by tube connector 21.
Beneficial effect of the present invention:
Heat exchanger of the present utility model adopts special type heat exchange tube, and end socket, tube sheet, housing are bolt assembly and connect; Adopt encapsulant and seal washer to solve between the flange and leak outside, reach axially what radial seal by the sealing ring between bolt supported flange, the tube sheet, lap joint flange connects readily removable.Connecting bend, flange link into an integrated entity with bolt assembly, and carry out circumferential seal with sealing ring between tube sheet 18, stop fluid to be revealed outside housing at the flange place.And between tube sheet, carry out circumferential seal with sealing ring, stop fluid outside tube sheet, to be revealed at the flange place.Flange, bolt get final product by standard design.
When heat-exchanging tube bundle need be changed, only need the Bolt Connection external member of housing two end flanges is unclamped, just can take end socket apart, to restrain and haul out housing, check then whether heat exchanger tube has corrosion and damage,, heat exchanger tube can be extracted out from tube bank when indivedual heat exchanger tubes need to change, and need not change miscellaneous part, saved resource so greatly.In a single day the present invention can solve fixed shell-and-tube heat exchanger a heat exchanger tube corrosion and damage, cause tube side, shell-side fluid to mix, the problem that must scrap whole heat exchanger is saved operation and maintenance cost greatly, and the tube bank fouling can be cleaned, and improves heat exchange efficiency.
The present invention also has simple in structure, manufacturing and easy for installation, and all parts all can adopt standard component, so manufacturing cost is lower.
The present invention adopts the better efficient heat-exchanging pipe of heat-transfer effect to help improving heat exchange efficiency.
Description of drawings
Fig. 1 is one of structural representation of the present invention.
Fig. 2 is one of sealed structural representation of the tube sheet that matches with Fig. 1.
Fig. 3 be the tube sheet that matches with Fig. 1 sealed structural representation two.
Two of Fig. 4 structural representation of the present invention.
Fig. 5 is the sealed structural representation of the tube sheet that matches with Fig. 4.
Fig. 6 is wherein a kind of section structure form figure of U-shaped efficient heat-exchanging pipe of the present invention.
Fig. 7 is the internal structure schematic diagram of the elbow part of reflection U-shaped heat exchanger tube of the present invention.
Among the figure: 1-end casing; 2-adpting flange; 3-end cap flange; 4-housing; 5-material inlet; 6-shell flange; 7-inlet flange; 7 '-outlet(discharge) flange; 8-inlet cone; 9-outlet cone; 10-material outlet; 11-support; 12-U type efficient heat-exchanging pipe; 13-sealing ring; 14-lap joint flange; 14 '-changeover portion lap joint flange; 15-mounting flange; 16-mounting flange; 17-packing ring; 18-tube sheet; 19-sealing ring; The 20-connecting bend, 21-tube connector, 22-adpting flange.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
Shown in Fig. 1,2,3,6,7.
A kind of detachable type high-efficiency casing heat exchanger, comprise that one group of U type efficient heat-exchanging pipe 12 being installed in the same housing 4 (can be shown in Figure 2 single, also can be shown in Figure 32, also can be below three or three), it can adopt bellows, the conduit pipe, winding pipe, a kind of (as shown in Figure 6) in screwed pipe or the finned tube, two straight lengths of described U type efficient heat-exchanging pipe 12 (can parallel also can be not parallel) are installed in respectively in the corresponding shell 4 (housing 4 can be arranged in parallel accordingly and also can not parallelly arrange), the two ends of housing 4 link to each other with end cap flange 3 with corresponding shell flange 6 respectively, wherein end cap flange 3 is two housings, 4 shared flanges, one in two housings 4 is connected with material inlet 5, and another is connected with material outlet 10.Two housings 4 support by support 11, so that distance between the two remains unchanged, as shown in Figure 1.The entrance point of U type efficient heat-exchanging pipe 12 and the port of export are separately fixed on separately the tube sheet 18.The tube sheet 18 of entrance point has two kinds of structures, wherein as shown in Figure 2 a kind of, another kind of the two difference as shown in Figure 3 be and tube sheet 18 and suction flange 7 (or outlet(discharge) flange 7 ') between apart from different, one end of its tube sheet 18 is connected with lap joint flange 14 and links to each other and mounting flange 15, lap joint flange 14 is installed between shell flange 6 and the mounting flange 15, the other end also is equipped with mounting flange 16 and inlet flange 7, inlet flange 7 is connected with inlet cone 8, and outlet(discharge) flange 7 ' then is connected with outlet cone 9.
The elbow part cover of U type high-efficiency heat pipe 12 is equipped with end casing 1, end casing 1 links to each other with adpting flange 2, and adpting flange 2 links to each other with end cap flange 3, as shown in Figure 1, end cap flange 3, adpting flange 2 and the end casing 1 common passage of forming two housings 4 of a connection, as shown in Figure 7.
The lap joint flange 14 that connects on the tube sheet 18 of described entrance point is clipped between shell flange 6 and the mounting flange 15 at the lap joint flange on the tube sheet 18 14 as Fig. 2, shown in Figure 3, and mounting flange 16 and inlet flange 7 (or outlet(discharge) flange 7 ') also are installed; The quantity and the connected mode of the lap joint flange 14 that connects on the tube sheet 18 of the described port of export are identical with entrance point, are clipped between shell flange 6 and the mounting flange 15 at the lap joint flange on the tube sheet 18 14.
During concrete dismounting, end cap 1 can be unloaded and observe, the U type heat exchanger tube that needs replacing be arranged, can simultaneously the connecting bolt between inlet flange 7 and the mounting flange 16 be unclamped as finding as long as unclamp connecting bolt between adpting flange 2 and the end cap flange 3; And the connecting bolt between mounting flange 15 and the shell flange 6 unclamped, take off lap joint flange 14, take off mounting flange 16, packing ring 17, inlet flange 7, then U type efficient heat-exchanging pipe 12 is extracted out from shell flange 6, change or clean.
Embodiment two.
Shown in Fig. 4,5,6,7.
A kind of detachable type high-efficiency casing heat exchanger assembly, it is made up of two detachable type high-efficiency casing heat exchangers identical with embodiment one, wherein the import of first detachable type high-efficiency casing heat exchanger is as the import of whole detachable type high-efficiency casing heat exchanger assembly, the outlet of second detachable type high-efficiency casing heat exchanger assembly is as the outlet of whole detachable type high-efficiency casing heat exchanger assembly, and between the entrance point of the port of export of first detachable type high-efficiency casing heat exchanger and second detachable type high-efficiency casing heat exchanger assembly, link to each other by a connecting bend 20, the effect of connecting bend 20 is that adjacent tube sheet 18 is communicated with.For can be smoothly after material is entered from the import 5 on first detachable type high-efficiency casing heat exchanger discharging opening 10 from second first detachable type high-efficiency casing heat exchanger flow out, between two adjacent detachable type high-efficiency casing heat exchangers, answer equipment tube connector 21, as shown in Figure 4, by that analogy, the present invention also can realize the combination of the detachable type high-efficiency casing heat exchanger more than three or three.The arrival end of present embodiment can adopt structure shown in Figure 5 with the tube sheet of the port of export 18 with inlet cone 8 and outlet both being connected of cone 9, also can adopt the structure shown in Fig. 2,3.The annexation of end casing 1, adpting flange and end cap flange 3 as shown in Figure 7.And all carry out removable the connection with shell flange 6 between the two ends of connecting bend 20 and the corresponding detachable type high-efficiency casing heat exchanger by transition adpting flange 14 ' and adpting flange 22.
During concrete dismounting, as long as unclamping connecting bolt between adpting flange 2 and the end cap flange 3 can unload end cap 1 and observe, as finding the U type heat exchanger tube that needs replacing is arranged, can simultaneously the connecting bolt between inlet flange 7 and the shell flange 6 be unclamped and take off connecting bend 20, then U type efficient heat-exchanging pipe is extracted out from housing 4, changed or clean.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1. detachable type high-efficiency casing heat exchanger, comprise U type efficient heat-exchanging pipe (12), two straight lengths that it is characterized in that described U type efficient heat-exchanging pipe (12) are installed in respectively in the corresponding shell (4), the two ends of housing (4) link to each other with end cap flange (3) with corresponding shell flange (6) respectively, wherein end cap flange (3) is the shared flange of two housings (4), one in two housings (4) is connected with material inlet (5), another is connected with material outlet (10), the entrance point of U type efficient heat-exchanging pipe (12) and the port of export are separately fixed on separately the tube sheet (18), tube sheet of entrance end (18) and shell flange (6), lap joint flange (14), first mounting flange (15) links to each other by bolt, lap joint flange (14) is installed between shell flange (6) and first mounting flange (15), second mounting flange (16) is connected with inlet flange (7), inlet flange (7) is connected with inlet cone (8), and outlet(discharge) flange (7 ') is connected with outlet cone (9); The elbow part cover of U type efficient heat-exchanging pipe (12) is equipped with end casing (1), end casing (1) links to each other with adpting flange (2), adpting flange (2) links to each other with end cap flange (3), and end cap flange (3), adpting flange (2) and end casing (1) are formed a passage that is communicated with two housings (4) jointly.
2. detachable type high-efficiency casing heat exchanger according to claim 1 is characterized in that described U type efficient heat-exchanging pipe can extract out from housing (4); The quantity of the lap joint flange (14) that is connected on the tube sheet of the entrance point and the port of export (18) is two or more.
3. detachable type high-efficiency casing heat exchanger according to claim 1, the quantity that it is characterized in that described U type efficient heat-exchanging pipe (12) is more than two or two, link to each other by connecting bend (20) between adjacent two U type efficient heat-exchanging pipes (12), adhere to separately between two adjacent housings (4) of two U type efficient heat-exchanging pipes (12) and link to each other to realize the perforation of material by tube connector (21).
4. detachable type high-efficiency casing heat exchanger according to claim 1 is characterized in that a kind of in bellows, conduit pipe, winding pipe, screwed pipe or the finned tube of described U type efficient heat-exchanging pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101569461A CN101354218B (en) | 2008-09-19 | 2008-09-19 | Detachable type high-efficiency casing heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101569461A CN101354218B (en) | 2008-09-19 | 2008-09-19 | Detachable type high-efficiency casing heat exchanger |
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| Publication Number | Publication Date |
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| CN101354218A CN101354218A (en) | 2009-01-28 |
| CN101354218B true CN101354218B (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101569461A Active CN101354218B (en) | 2008-09-19 | 2008-09-19 | Detachable type high-efficiency casing heat exchanger |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562531A (en) * | 2010-12-29 | 2012-07-11 | 无锡市鑫盛换热器制造有限公司 | Air cooler |
| CN102384675B (en) * | 2011-08-09 | 2012-12-19 | 江苏中圣高科技产业有限公司 | Detachable waste heat recovery high-efficiency heat exchanger |
| CN102425814B (en) * | 2011-12-02 | 2014-03-26 | 中铁建设集团有限公司 | Reinforced convection heat exchange type water distribution and collection device for cold source machine room |
| CN104154781A (en) * | 2013-12-05 | 2014-11-19 | 北京大学工学院包头研究院 | Shell and tube heat exchanger |
| ES2598122B2 (en) * | 2016-11-03 | 2017-09-20 | Universidad De Cantabria | Portable heat exchanger for testing removable tubes of different materials |
| CN109556431A (en) * | 2018-11-23 | 2019-04-02 | 上海慧得节能科技有限公司 | Normalized assembled heat exchanger |
| CN109654920A (en) * | 2019-01-30 | 2019-04-19 | 佛山市科蓝环保科技股份有限公司 | A kind of cooling device for industry lampblack cleaning equipment |
| CN113617041B (en) * | 2021-07-21 | 2022-11-29 | 邳州市鑫盛创业投资有限公司 | Reboiler for alcohol processing |
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- 2008-09-19 CN CN2008101569461A patent/CN101354218B/en active Active
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| CN101354218A (en) | 2009-01-28 |
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Effective date of registration: 20181128 Address after: 211511 No. 108 Jing No. 2 Road, Nanjing Chemical Industrial Park, Jiangsu Province Patentee after: JIANGSU SUNPOWER PRESSURE VESSEL AND EQUIPMENT MANUFACTURING CO., LTD. Address before: 211112 No. 2111 Chengxin Avenue, Jiangning District, Nanjing, Jiangsu. Patentee before: Zhongsheng High Science & Technology Industry Co., Ltd., Jiangsu |