CN2548104Y - High-pressure shell-type heat-exchanger - Google Patents
High-pressure shell-type heat-exchanger Download PDFInfo
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- CN2548104Y CN2548104Y CN 02213264 CN02213264U CN2548104Y CN 2548104 Y CN2548104 Y CN 2548104Y CN 02213264 CN02213264 CN 02213264 CN 02213264 U CN02213264 U CN 02213264U CN 2548104 Y CN2548104 Y CN 2548104Y
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Abstract
The utility model discloses a high pressure shell and tube heat exchanger which is used in petroleum refining process, which mainly solves the problem of the large flange type heat exchanger with omega ring welding sealing spacer on two sides of the tube plate and the thread locking ring structure high pressure heat exchanger. A pipe box flange (6) and a pipe box cover (9) are arranged on the end part of the pipe box (17). A flange lateral welding spacer (7), an integral round plate structure, and a flange cover lateral welding spacer (8) with flexible segment are arranged between the two end surfaces of the pipe box flange and the pipe box cover. An outer circular joint of the periphery between two spacers and an inner circular joint between the inner circular surface of the flange lateral welding spacer and the flange end surface of the pipe box are sealing welding seams. A pressing screw (11) is arranged on the pipe box flange cover (9), which presses the tube and shell side sealing spacer on the tube plate via the flexible segment of the flange cover lateral welding spacer pushing an inner sleeve (5) which is arranged in the pipe box. The utility model is mainly used in the high pressure heat exchange process of a petroleum refining hydrotreating device.
Description
Technical field
The utility model relates to a kind of high-voltage tube shell heat exchanger of PETROLEUM PROCESSING industry.
Background technology
At present, along with the development of national economy and the raising of environmental requirement, development low-sulfur clean fuel is urgent day by day.Hydroprocessing techniques such as hydrofinishing, hydro-upgrading and hydrocracking are the important means that changes oil property.Petrochemical industry is as the pillar industry of country, and country will give priority to and build various hydrogenation plants.And hydrogenation heat exchanger is mainly energy-conservation as hydrogenation plant, consumption reduction equipment, is indispensable equipment in the hydrogenation plant.
The hydrogenation plant processing medium is inflammable and explosive, and is in HTHP, faces the operation down of hydrogen and hydrogen-sulfide environmental, requires equipment that very high sealing reliability is arranged.The high-pressure hydrogenation heat exchanger of home and abroad generally adopts the high-voltage tube shell heat exchanger at present, mostly is big flange arrangement high pressure heat exchanger in tube sheet both sides or screw-threaded coupling ring structure high pressure heat exchanger greatly.
Big flange arrangement high pressure heat exchanger, its tube sheet both sides are two butt welding steel flanges, are pad between tube sheet and big flange.Pad has spiral wound gasket, corrugated serrated compound gasket, flat metallic gasket and anistree pad etc. several.Its sealing mechanism is for by tightening kingbolt compress gasket on the big flange, make it to take place elasticity or plastic deformation realizes sealing, thereby stops fluid to leak.The bolt force in flange when work comprises fluid because axial force and pad that self pressure produces are out of shape these two parts of needed bolt force.When pressure higher (more than the 10MPa) and device diameters were big, the reliability of this hermetically-sealed construction was also bad.Developed the hermetically-sealed construction (is the reaction effluent/mixed feeding heat exchanger of 800,000 tons of/year gasoline and diesel hydrogenation refining plant designs of China Petrochemical Industry's Shanghai Gaoqiao Petrochemical Company oil plant, manufacturing as Lanzhou Oil Machine Research Institute) of Ω boxing connection pad sheet on the basis of big flange arrangement, its sealing mechanism is different with conventional pad.Weld between the Ω ring, weld between Ω ring and the flange all by being welded to connect, so there is not the leakage interface.Pad needn't be out of shape just can realize sealing.Compare with conventional pad, the axial force that the bolt force on the flange only produces owing to self pressure for fluid, so bolt force is less, and the size of flange is less, and weight is also just lighter.The advantage of big flange arrangement high pressure heat exchanger is: simple in structure, the parts of heat exchanger are less, and design, manufacture difficulty are less.Adopt the big flange arrangement high pressure heat exchanger sealing of Ω boxing connection pad sheet reliable, do not exist and leak the interface, can be used in the occasion that pressure is higher, device diameters is bigger.Its shortcoming is: (1) shell side heat exchange dead band is bigger, and effective heat exchange area reduces.Big flange arrangement high pressure heat exchanger causes the heat exchanger shell pass gateway longer apart from the distance of tube sheet because the length of tube sheet two side flanges is longer, and the heat exchange dead band is also just bigger.Add guide shell and then can increase the pressure drop of heat exchanger; (2) for the big flange arrangement high pressure heat exchanger that adopts conventional pad, because bolt force is bigger, the size of bolt and flange is big, and weight is heavier.And this structure because bolt is big, is not easy to tighten when the higher and device diameters of pressure is big, and its actual sealing reliability is not high; (3) dismounting, the installation workload of the big flange arrangement heat exchanger of employing Ω boxing connection pad sheet are bigger.Need cut the Ω boxing during dismounting heat exchanger and connect gasket seal, need assembly welding Ω boxing to connect gasket seal during installation, the workload of cutting, welding is bigger.
The thread-locking ring high pressure heat exchanger is (referring to " petrochemical equipment technology " calendar year 2001 the 22nd volume the 5th phase the 9th～10 page of " structural design of screw-threaded coupling ring type bivalve pass heat exchanger " literary composition, or " Nanjing petrochemical industry " 1997 the 1st phases the 44th～49 page of " daily output hydrocracking unit high pressure heat exchanger part-structure improves " literary composition), be widely used a kind of high pressure heat exchanger on High-pressure Hydrogenation Unit at present.Its advantage is: (1) sealing reliability is good.Because design feature itself, the axial force that is caused by interior pressure is born by the bobbin carriage body by channel cover and thread-locking ring.Therefore the face pressure that adds to gasket seal is little, and bolt is little, is convenient to tighten, and is easy to bring into play sealing effectiveness.If find to go here and there when leaking between tube side leakage or shell journey, utilize the outer ring bolt or the inner ring bolt that are exposed just to tighten again and can stop a leak in working order down.In addition, the heat exchanger shell of this structure and bobbin carriage are swaged into or are welded into one, do not have big flange to connect, thereby have avoided the possibility of fluid to external leaks.Loose core when cleaning or repairing simultaneously at heat exchanger, also needn't mobile shell and bobbin carriage, like this, the opening on the heat exchanger is taken over and just can directly be welded to connect with pipe arrangement, thereby has reduced leakage point; (2) easy accessibility.Because bolt is less, institute is so that dismounting.Do not need mobile shell during the tube bank of dismounting simultaneously, can save many labours and time; (3) metal consumption is few.The heat exchanger of this structure does not have big flange, and fastening bolt is little, compact conformation, and opening is taken over and can directly be welded mutually with pipe arrangement, has saved many flanges, thereby has reduced metal consumption; (4) the heat exchange dead band is little.Because Tube Sheet of Heat Exchanger tank shell and shell side housing become one, the shell side opening is taken over the place that just can be arranged on as close as possible tube sheet.And on the heat exchanger of big flange-type structure, have quite long heat exchanger tube effectively not utilize near the tube sheet end.The shortcoming of screw-threaded coupling ring structure high pressure heat exchanger is: (1) machined components is many, complex structure, and design and the difficulty of making are all bigger; (2) inner separating and joining ring of bobbin carriage and internal-flange bolt dismounting difficulty.In addition, be required to be the separating and joining ring fluting on the bobbin carriage cylindrical shell, thereby strengthened the thickness of bobbin carriage cylindrical shell; (3) major thread above the thread-locking ring makes the manufacturing difficulty of processing of major thread bigger owing to cooperate requirement high.
Summary of the invention
Technical problem to be solved in the utility model is: adopt the welding of welded seal pad, the cutting workload of the big flange arrangement high pressure heat exchanger of welded seal pad big and heat exchange dead band heat exchanger is bigger, and screw-threaded coupling ring structure high pressure heat exchanger machined components is many, complex structure, design and the big problem of manufacture difficulty.
For addressing the above problem, the technical scheme that the utility model adopted is: a kind of high-voltage tube shell heat exchanger, comprise housing, bobbin carriage, be provided with tube sheet between housing and the bobbin carriage, be provided with inner sleeve in the bobbin carriage, it is characterized in that: the end of bobbin carriage be provided with channel flange and with the channel flange of its positioned opposite lid, connect with kingbolt between the two, be provided with the welded seal pad between channel flange and the channel flange lid, the welded seal pad is made up of the flange face down bonding connection pad sheet of annular and the blind flange face down bonding connection pad sheet of circular plate type, blind flange face down bonding connection pad sheet is an overall structure plectane, by the circumferential center of circle successively by seal section, compliant section and reinforcement section are formed, seal section and flange face down bonding connection pad sheet positioned opposite, outside circumferential weld on the excircle between the seal section of flange face down bonding connection pad sheet and blind flange face down bonding connection pad sheet impose seal weld form outside girth joint, internal circular seam between the end face of the interior ring surface of flange face down bonding connection pad sheet and channel flange impose seal weld form in the ring angle welding, the one side that blind flange face down bonding connection pad sheet is relative with the channel flange lid is the plane, the end face of being close to the channel flange lid, channel flange covers and is provided with hold-down bolt, and hold-down bolt directly or by the compliant section of clamping element through blind flange face down bonding connection pad sheet compresses an end of inner sleeve and makes the other end of inner sleeve compress tube sheet.
Adopt the utility model, have following beneficial effect:
At first, compare with the high pressure heat exchanger of screw-threaded coupling ring structure, the beneficial effects of the utility model are: (1) the utility model adopts an end of the inner sleeve in the heat exchanger bobbin carriage directly or by the compliant section of clamping element through blind flange face down bonding connection pad sheet to be held out against by the hold-down bolt that channel flange covers, and then the other end that makes inner sleeve compresses the structure of tube sheet, separating and joining ring and internal-flange bolt in the thread-locking ring heat exchanger have been cancelled, thereby make on the bobbin carriage cylindrical shell and needn't be the separating and joining ring fluting again, reduce the thickness of bobbin carriage cylindrical shell, also be design, make, dismounting has reduced workload; (2) the utility model adopts blind flange welding gasket hermetically-sealed construction in heat exchanger bobbin carriage end, has cancelled thread-locking ring, greatly reduces the manufacture difficulty of heat exchanger.
Secondly, the big flange form heat exchanger that connects gasket seal with the band Ω boxing of tube sheet both sides is compared, the beneficial effects of the utility model are: (1) the utility model only channel flange sealing surface adopts the welding gasket structure, reduced by a welding gasket, the outer girth joint workload of welding gasket only is the former 1/2, has reduced welding, cutting workload.And owing to cover the whole plectane structure of half welding gasket (blind flange face down bonding connection pad sheet) employing of a side near channel flange, can adopt the whole manufacturing of a steel plate, the ring angle welding does not weld together itself and channel flange lid in not needing, so the interior ring angle welding workload between pad and flange only is the former 1/4; (2) the shell side side shell side gateway of the utility model heat exchanger can be offered near tube sheet to greatest extent, has reduced the heat exchange dead band effectively, has improved heat exchange efficiency; (3) the utility model heat exchanger can make device just needn't stop work can be located at hold-down bolt that bobbin carriage end channel flange covers and to realize sealing between the shell journey by directly tightening; (4) the flange form sealing of welded seal pad is adopted in the bobbin carriage end, make the utility model keep employing welded seal gasket seal not have leakage point, the flange kingbolt has less pretension and operation load thereby makes bolt and flange size is less, weight of equipment is lighter advantage.
In a word, the utility model is that the big flange form high pressure heat exchanger advantage separately that has adopted screw-threaded coupling ring type high pressure heat exchanger and the band Ω boxing of tube sheet both sides to connect gasket seal is developed a kind of new structure high-voltage tube shell heat exchanger that forms.Except that above-mentioned advantage, the utility model can adopt the thread-locking ring heat exchanger that housing and bobbin carriage are designed to the structure of one, does not have big flange to connect.The advanced person's who is adopted hermetically-sealed construction and method for designing make the utility model compare with traditional high-voltage tube shell heat exchanger, have simple and compact for structurely, and sealing is reliable, dismounting, maintenance, easy to maintenance, plurality of advantages such as floor space is little.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the axial cutaway view of the utility model high-voltage tube shell heat exchanger.
Fig. 2 is the I portion enlarged drawing of Fig. 1, and the welded seal pad is a Ω ring hermetically-sealed construction.
Fig. 3 is the I portion enlarged drawing of Fig. 1, and the welded seal pad is the downhand welding gasket construction.
Fig. 4 is the axial cutaway view of blind flange face down bonding connection pad sheet, and seal section is half a Ω ring hermetically-sealed construction.
Fig. 5 is the axial cutaway view of blind flange face down bonding connection pad sheet, and seal section is the downhand welding gasket construction.
Fig. 6 is the structural representation that hold-down bolt passes through collar supported flange lid face down bonding connection pad sheet.
Fig. 7 is the structural representation of hold-down bolt by ejector pin and collar supported flange lid face down bonding connection pad sheet.
Fig. 8 is the structural representation that hold-down bolt passes through ejector pin supported flange lid face down bonding connection pad sheet.
Fig. 9 is the structural representation of the direct supported flange lid of hold-down bolt face down bonding connection pad sheet.
The specific embodiment
The utility model high-voltage tube shell heat exchanger as shown in Figure 1 comprises housing 16, bobbin carriage 17, is provided with tube sheet 2 between housing 16 and the bobbin carriage 17.Housing 16 is provided with shell side inlet 1 and shell side outlet 15, and bobbin carriage 17 is provided with tube side inlet 4 and tube side outlet 14.Be provided with shell side side seal pad 19 between tube sheet 2 and the housing 16.
Be provided with inner sleeve 5 (cross section is an annular, and figure slightly) in the bobbin carriage 17, divide journey case 3.Branch journey case 3 is located in the inner sleeve 5; It comprises branch journey cover plate 12 (semicircle, figure slightly) and pass partition 18.The semi-circumference of branch journey cover plate 12 links to each other with the support circle 23 (semi-round ring shape, figure are slightly) that is fixed on the inner sleeve 5, and its lower end links to each other with pass partition 18; The other end of pass partition 18 is tightly connected by tube side side seal pad 20 and tube sheet 2.One end of inner sleeve 5 is tightly connected by tube side side seal pad 20 and tube sheet 2, and the other end holds out against on the compliant section 802 of the blind flange face down bonding connection pad sheet 8 of being located at bobbin carriage 17 ends (structure of blind flange face down bonding connection pad sheet 8 is narrated hereinafter).Inner sleeve 5 is provided with two perforates, exports 14 corresponding with tube side inlet 4 and tube side respectively.Wherein the structure of tube side inlet 4 and branch journey case 3 and inner sleeve 5 and pass partition 18 are all basic identical with existing screw-threaded coupling ring type high pressure heat exchanger with being tightly connected of tube sheet 2.
The outside of bobbin carriage 17 ends be provided with channel flange 6 and with the channel flange of its positioned opposite lid 9, connect with kingbolt 10 between the two.Between the end face of channel flange 6 and channel flange lid 9, the inboard of kingbolt 10 radial positions is provided with the welded seal pad, the welded seal pad is made up of the flange face down bonding connection pad sheet 7 of annular and the blind flange face down bonding connection pad sheet 8 of circular plate type.Wherein, blind flange face down bonding connection pad sheet 8 is an overall structure plectane, being made up of seal section 801, compliant section 802 and reinforcement section 803 successively the circumferential center of circle, is that axial cutaway view and Fig. 5 seal section 801 of the blind flange face down bonding connection pad sheet 8 of half Ω ring hermetically-sealed construction is the axial cutaway view of the blind flange face down bonding connection pad sheet 8 of downhand welding gasket construction referring to Fig. 4 seal section 801.Flange face down bonding connection pad sheet 7 is an annular, and blind flange face down bonding connection pad sheet 8 is a circular plate type, and accompanying drawing all omits.
The seal section 801 of blind flange face down bonding connection pad sheet 8 and flange face down bonding connection pad sheet 7 can be half Ω ring hermetically-sealed constructions.The openend positioned opposite of two and half Ω ring, the outside circumferential weld on the excircle between two and half Ω ring imposes seal weld and forms outer girth joint 21, forms the Ω ring and seals; Internal circular seam between the end face of the interior ring surface of flange face down bonding connection pad sheet 7 and channel flange 6 impose seal weld form in ring angle welding 22.Referring to Fig. 2.
The seal section 801 of blind flange face down bonding connection pad sheet 8 and flange face down bonding connection pad sheet 7 can also be the downhand welding gasket constructions.Seal section 801 and flange face down bonding connection pad sheet 7 positioned opposite, the outside circumferential weld on the excircle between the seal section 801 of flange face down bonding connection pad sheet 7 and blind flange face down bonding connection pad sheet 8 impose seal weld form outside girth joint 21; Internal circular seam between the end face of the interior ring surface of flange face down bonding connection pad sheet 7 and channel flange 6 impose seal weld form in ring angle welding 22.Referring to Fig. 3.
It all is that prior art is used that the flange face down bonding connection pad sheet 7 of above-mentioned two kinds of structure welding gaskets and the Ω boxing that welding gasket adopted connect hermetically-sealed construction peace welding pad hermetically-sealed construction.The utility model is that blind flange face down bonding connection pad sheet 8 adopts the overall structure plectane to the improvements of welding gasket; It can adopt conventional machine-tooled method manufacturing with whole steel plate.
The thickness of the compliant section 802 of blind flange face down bonding connection pad sheet 8 should relatively approach (as Fig. 4, shown in Figure 5, being generally 4 to 6 millimeters), enables to produce suitable strain.It is the plane that blind flange face down bonding connection pad sheet 8 and channel flange cover 9 relative one sides, is close to the end face (referring to Fig. 1) of channel flange lid 9, covers 9 and born by it so that the pressure of suffered heat transferring medium can be passed to channel flange.The sealing of heat transferring medium relies on above-mentioned welding gasket and seal-weld to realize in the bobbin carriage 17.
Hold-down bolt 11 can be evenly distributed to thrust on the compliant section 802 of blind flange face down bonding connection pad sheet 8 by the mode that collar 1301 compresses.Can also ejector pin 1302 be set respectively compressing between end and the collar 1301 of each hold-down bolt 11, the thrust of hold-down bolt 11 be passed to collar 1301 through ejector pin 1302, referring to Fig. 7.
Can also not adopt the mode that compresses by collar 1301.As Fig. 8, at the end that compresses of each hold-down bolt 11 ejector pin 1302 is set respectively, ejector pin 1302 directly holds out against the compliant section 802 of blind flange face down bonding connection pad sheet 8.
Hold-down bolt 11 compress the compliant section 802 that end also can directly hold out against blind flange face down bonding connection pad sheet 8, as shown in Figure 9; Do not use the above-mentioned several used collar of mode, ejector pin etc. of compressing to compress element.
The inwall of heat exchanger shell, bobbin carriage and heat transferring medium gateway can built-up welding one deck corrosion resistant alloy overlay cladding 24 (referring to Fig. 1), to prevent the erosion of heat transferring medium.The material of welded seal pad should be selected for use according to heat transferring medium and concrete corrosive environment, as materials such as employing stainless steels.
The utility model " high-voltage tube shell heat exchanger " speech is the general technical term in this area; The pressure of " high pressure " indication shell journey fluid is generally 6MPa～32MPa.The operation of heat exchanger temperature is generally 150 ℃～450 ℃.The mode of operation of the utility model heat exchanger and the type of flow of heat transferring medium are identical with conventional high-voltage tube shell heat exchanger.
The implication of all unreceipted Reference numerals is all identical with Fig. 1 among the utility model specification Fig. 2 to Fig. 9.
The utility model can be used for the high pressure heat transfer process of petroleum refining hydrotreater; Application at other similar high-voltage tube shell heat exchanger also can extensively adopt.
Claims (6)
1, a kind of high-voltage tube shell heat exchanger, comprise housing (16), bobbin carriage (17), be provided with tube sheet (2) between housing (16) and the bobbin carriage (17), be provided with inner sleeve (5) in the bobbin carriage (17), it is characterized in that: the end of bobbin carriage (17) be provided with channel flange (6) and with the channel flange of its positioned opposite lid (9), use kingbolt (10) to connect between the two, be provided with the welded seal pad between channel flange (6) and the channel flange lid (9), the welded seal pad is made up of the flange face down bonding connection pad sheet (7) of annular and the blind flange face down bonding connection pad sheet (8) of circular plate type, blind flange face down bonding connection pad sheet (8) is an overall structure plectane, by the circumferential center of circle successively by seal section (801), compliant section (802) and reinforcement section (803) are formed, seal section (801) and flange face down bonding connection pad sheet (7) positioned opposite, outside circumferential weld on the excircle between the seal section (801) of flange face down bonding connection pad sheet (7) and blind flange face down bonding connection pad sheet (8) impose seal weld form outside girth joint (21), internal circular seam between the end face of the interior ring surface of flange face down bonding connection pad sheet (7) and channel flange (6) impose seal weld form in ring angle welding (22), the one side that blind flange face down bonding connection pad sheet (8) is relative with channel flange lid (9) is the plane, the end face of being close to channel flange lid (9), channel flange lid (9) is provided with hold-down bolt (11), and hold-down bolt (11) directly or by the compliant section (802) of clamping element through blind flange face down bonding connection pad sheet (8) compresses an end of inner sleeve (5) and makes the other end of inner sleeve (5) compress tube sheet (2).
2, high-voltage tube shell heat exchanger according to claim 1 is characterized in that: the seal section (801) of described blind flange face down bonding connection pad sheet (8) and flange face down bonding connection pad sheet (7) are half Ω ring hermetically-sealed construction, the openend positioned opposite of two and half Ω ring.
3, high-voltage tube shell heat exchanger according to claim 1 is characterized in that: the seal section (801) of described blind flange face down bonding connection pad sheet (8) and flange face down bonding connection pad sheet (7) are the downhand welding gasket construction.
4, according to claim 1 or 2 or 3 described high-voltage tube shell heat exchangers, it is characterized in that: described clamping element is the annular collar (1301) between the compliant section (802) that compresses end and blind flange face down bonding connection pad sheet (8) of being located at hold-down bolt (11), and collar (1301) is located in the annular groove of leaving on channel flange lid (9) end face.
5, according to claim 1 or 2 or 3 described high-voltage tube shell heat exchangers, it is characterized in that: described clamping element is annular collar (1301) and ejector pin (1302) between the compliant section (802) that compresses end and blind flange face down bonding connection pad sheet (8) of being located at hold-down bolt (11), collar (1301) is located in the annular groove of leaving on channel flange lid (9) end face, and ejector pin (1302) is positioned at compressing between end and the collar (1301) of hold-down bolt (11).
6, according to claim 1 or 2 or 3 described high-voltage tube shell heat exchangers, it is characterized in that: described clamping element is the ejector pin (1302) between the compliant section (802) that compresses end and blind flange face down bonding connection pad sheet (8) of being located at hold-down bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02213264 CN2548104Y (en) | 2002-03-11 | 2002-03-11 | High-pressure shell-type heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02213264 CN2548104Y (en) | 2002-03-11 | 2002-03-11 | High-pressure shell-type heat-exchanger |
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| Publication Number | Publication Date |
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| CN2548104Y true CN2548104Y (en) | 2003-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02213264 Expired - Lifetime CN2548104Y (en) | 2002-03-11 | 2002-03-11 | High-pressure shell-type heat-exchanger |
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| CN (1) | CN2548104Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813434A (en) * | 2010-05-27 | 2010-08-25 | 甘肃蓝科石化高新装备股份有限公司 | Welded seal structure of shell flange of air cooler |
| CN102313481A (en) * | 2011-08-26 | 2012-01-11 | 新乡市远航动力环控机械有限公司 | Core and shell connecting structure of heat exchanger |
| CN104315887A (en) * | 2014-09-25 | 2015-01-28 | 徐永权 | Heat exchanging device based on hydrogen compound |
| CN104406450A (en) * | 2014-11-18 | 2015-03-11 | 广州达意隆包装机械股份有限公司 | Sealing seat of tubular heat exchanger and tubular heat exchanger |
| CN104913667A (en) * | 2015-06-18 | 2015-09-16 | 北京化工大学 | D-shaped bolt U-shaped pipe high-pressure heat exchanger |
| GB2525025A (en) * | 2014-04-10 | 2015-10-14 | Linde Ag | Improved gasket for heat exchanger |
| CN105202966A (en) * | 2015-09-17 | 2015-12-30 | 苏州新协力特种工业模板有限公司 | Screw-lock ring type heat exchanger |
| WO2016155582A1 (en) * | 2015-03-30 | 2016-10-06 | 茂名重力石化机械制造有限公司 | Tube heat exchanger tube-header sealing structure |
| CN106323074A (en) * | 2015-06-18 | 2017-01-11 | 中石化洛阳工程有限公司 | Device used for adjusting heat expansion difference of inner sleeve heat exchanger |
| CN108088284A (en) * | 2017-12-04 | 2018-05-29 | 唐山三友集团兴达化纤有限公司 | A kind of zirconium heat exchange of heat pipe |
| CN110108138A (en) * | 2019-05-31 | 2019-08-09 | 陕西科技大学 | A kind of heat exchanger apparatus |
-
2002
- 2002-03-11 CN CN 02213264 patent/CN2548104Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813434A (en) * | 2010-05-27 | 2010-08-25 | 甘肃蓝科石化高新装备股份有限公司 | Welded seal structure of shell flange of air cooler |
| CN102313481A (en) * | 2011-08-26 | 2012-01-11 | 新乡市远航动力环控机械有限公司 | Core and shell connecting structure of heat exchanger |
| GB2525025A (en) * | 2014-04-10 | 2015-10-14 | Linde Ag | Improved gasket for heat exchanger |
| CN104315887A (en) * | 2014-09-25 | 2015-01-28 | 徐永权 | Heat exchanging device based on hydrogen compound |
| CN104406450A (en) * | 2014-11-18 | 2015-03-11 | 广州达意隆包装机械股份有限公司 | Sealing seat of tubular heat exchanger and tubular heat exchanger |
| WO2016155582A1 (en) * | 2015-03-30 | 2016-10-06 | 茂名重力石化机械制造有限公司 | Tube heat exchanger tube-header sealing structure |
| CN104913667A (en) * | 2015-06-18 | 2015-09-16 | 北京化工大学 | D-shaped bolt U-shaped pipe high-pressure heat exchanger |
| CN106323074A (en) * | 2015-06-18 | 2017-01-11 | 中石化洛阳工程有限公司 | Device used for adjusting heat expansion difference of inner sleeve heat exchanger |
| CN105202966A (en) * | 2015-09-17 | 2015-12-30 | 苏州新协力特种工业模板有限公司 | Screw-lock ring type heat exchanger |
| CN108088284A (en) * | 2017-12-04 | 2018-05-29 | 唐山三友集团兴达化纤有限公司 | A kind of zirconium heat exchange of heat pipe |
| CN110108138A (en) * | 2019-05-31 | 2019-08-09 | 陕西科技大学 | A kind of heat exchanger apparatus |
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