CN103322836A - Shell and tube type heat exchange, and assembling method thereof - Google Patents
Shell and tube type heat exchange, and assembling method thereof Download PDFInfo
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- CN103322836A CN103322836A CN2013100856864A CN201310085686A CN103322836A CN 103322836 A CN103322836 A CN 103322836A CN 2013100856864 A CN2013100856864 A CN 2013100856864A CN 201310085686 A CN201310085686 A CN 201310085686A CN 103322836 A CN103322836 A CN 103322836A
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- floating tubesheet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
- F28D7/1623—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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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
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a shell and tube type heat exchanger, which has a structure free from damage when tubes are inserted into a housing. The shell and tube type heat exchanger has the components as follows: a cylindrical shell; a tube portion which is inserted into the shell and comprises a plurality of fins and tubes; a fixed tube plate, which is supported against the opening at one end side of the shell and is fixedly connected to one end of the tube portion; a floating tube plate, which is supported against the opening at the other end of the shell and is connected with the another end of the tube portion; a lead-in/out head, which is arranged surrounding the fixed tube plate; a flow-back head, which is arranged surrounding the floating tube plate; a channel cover, which is supported against the opening of the other end of the shell and is arranged surrounding the flow-back head; and a floating tube plate sealing member, which is connected with the periphery of the floating tube plate and is supported against the inner pheriphery of the channel cover.
Description
Technical field
The present invention relates to a kind of shell-and-tube exchanger and assemble method thereof, relate to especially the built-in shell-and-tube exchanger of a kind of plate-fin coil pipe and the improvement of assemble method thereof.
Background technology
Following technology has realized practical in recent years: offer a plurality of holes at thin tetragonal copper, aluminium alloy or stainless flat board, in these holes, insert the siphunculus group and form finned pipe (tube bank), it is accommodated in the shell of tubular and the formation shell-and-tube exchanger.
An example of the prior art of these shell-and-tube exchangers is described referring to Fig. 9,10.Fig. 9 is the signal longitudinal section of the gas cooler of prior art, and Figure 10 is the signal direction of arrow view of the D-D direction of arrow of presentation graphs 9.
The shell-and-tube exchanger of the prior art is the gas cooler of plate-fin, and cooling water passes through in pipe, carries out heat exchange with the gas that passes through and cool off outside pipe.For gas is passed through to heat exchange department (fin part) reliably, shown in Fig. 9,10, be provided with the thin spring of the high temperature side of separating gas and low temperature side with the sealing plate 33 ~ 36 of stainless steel band system.These sealing plates 33 ~ 36 were installed on tube bank 31 before inserting to shell 30, insert to shell 30 with tube bank 31 and extract.
Fashionable to the shell interpolation in the tube bank 31 that sealing plate 33 ~ 36 will be installed, particularly in the diametric sealing plate to the sealing plate 35 of direction of insertion bending by gas access nozzle 32 time, be hooked in sometimes the angle of gas access nozzle 32 and damage.In when damage, need temporarily will restrain 31 and extract and change sealing plate 35, but since sealing plate 35 be integrated with sealing plate 33, so must the large-scale sealing plate of replacing.And if use sealing plate under the state of damage, then high-temperature gas does not carry out heat exchange and reveals to the cryogenic gas side, and the cooling capacity of gas cooler reduces.
Summary of the invention
Thus, the object of the present invention is to provide a kind of shell-and-tube exchanger and assemble method thereof, in the shell-and-tube exchanger and assemble method thereof of the general plate-fin that suitably separately uses various parts, have will restraining and insert the structure that sealing can not damage when extracting in the shell.
To achieve these goals, the present invention relates to a kind of shell-and-tube exchanger, this shell-and-tube exchanger possesses: the shell of tubular roughly has opening at two ends, the first fluid outlet that is formed with the first fluid entrance of supplying with first fluid and discharges first fluid; And tube bank section, be inserted in this shell, comprise a plurality of fins and connect these fins and a plurality of pipes that second fluid passes through.
And this shell-and-tube exchanger possesses: fixed tube sheet with one of above-mentioned shell distolateral opening butt, and is fixedly connected on the distolateral of above-mentioned tube bank section; Floating tubesheet, with another distolateral opening butt of above-mentioned shell, and can be along general horizontal direction floating ground another distolateral connection with above-mentioned tube bank section; Import and export head, distolateral at above-mentioned shell is formed be used to the second fluid entrance that imports and exports above-mentioned second fluid and second fluid outlet, is installed on above-mentioned fixed tube sheet; The backflow head, distolateral at another of above-mentioned shell, be used for temporarily accommodating the above-mentioned second fluid of discharging from above-mentioned tube bank section and make it again be back to above-mentioned tube bank section, be installed on above-mentioned floating tubesheet; Channel mask, another the distolateral opening butt with above-mentioned shell encloses in the mode that covers above-mentioned backflow head; And the floating tubesheet seal, engage with the periphery of above-mentioned floating tubesheet, and with the inner peripheral butt of above-mentioned channel mask.
According to the shell-and-tube exchanger of said structure, can with the floating tubesheet seal successfully with the inner peripheral butt of above-mentioned channel mask, can prevent that the damage of seal and gap from producing and the reduction of the cooling capacity that causes.
In the shell-and-tube exchanger of said structure, preferred above-mentioned floating tubesheet seal constitutes and can cut apart.According to this structure, the installation of above-mentioned floating tubesheet seal becomes easily, and when pushing above-mentioned floating tubesheet seal by channel mask, above-mentioned floating tubesheet seal not yielding and and channel mask between produce the gap.
And, preferred above-mentioned floating tubesheet seal is around in the periphery of above-mentioned floating tubesheet by being used for the floating tubesheet seal push plate that engages with above-mentioned floating tubesheet, and, be formed at a plurality of screwed holes screw-in bolts of this floating tubesheet seal push plate from the lateral of above-mentioned backflow head, above-mentioned floating tubesheet seal push plate, above-mentioned floating tubesheet seal, above-mentioned floating tubesheet and above-mentioned backflow head is fastening integratedly.According to this structure, in the shell-and-tube exchanger of the general plate-fin that suitably separately uses various parts, can carry out the insertion that sealing can not damage when extracting and extract tube bank section is inserted in the shell.
And, the present invention is the method for the shell-and-tube exchanger of assembling said structure, before above-mentioned tube bank section is inserted above-mentioned shell, with after can insert and be packed with the mode of stating the floating tubesheet seal and between above-mentioned floating tubesheet and above-mentioned floating tubesheet seal push plate, vacate the gap, under this state, insert above-mentioned bolt and above-mentioned floating tubesheet seal push plate is temporarily fixed on above-mentioned floating tubesheet.Then, one distolateral distolateral to another from above-mentioned shell, above-mentioned tube bank section is inserted in the above-mentioned shell, afterwards, above-mentioned floating tubesheet seal is inserted the above-mentioned gap that is formed between above-mentioned floating tubesheet and the above-mentioned floating tubesheet seal push plate, make the open slotted hole that is formed at above-mentioned floating tubesheet seal be combined the shaft core position that is intercalated in above-mentioned bolt, these bolts are tightened from the outside of above-mentioned backflow head, above-mentioned floating tubesheet seal is fixed in above-mentioned floating tubesheet, on the other hand, with the periphery butt of above-mentioned channel mask and above-mentioned floating tubesheet seal and be installed on above-mentioned shell.
According to said method, when inserting above-mentioned tube bank section in the above-mentioned shell, do not install and state the floating tubesheet seal, and after tube bank section being inserted in the above-mentioned shell, install, therefore, can carry out the assembling that sealing not have the shell-and-tube exchanger that damages.And, during the safeguarding of tube bank section, as long as by disintegrating with the antipodal order of said sequence, then can be removing above-mentioned floating tubesheet seal after above-mentioned tube bank section be extracted in above-mentioned shell, therefore can carry out the maintenance that sealing does not have the heat transfer tube bundle section damaged.
Description of drawings
Fig. 1 is the signal longitudinal section of the shell-and-tube exchanger of embodiments of the present invention.
Fig. 2 is the signal direction of arrow view of the A-A direction of arrow of presentation graphs 1.
Fig. 3 is the signal direction of arrow view of the B-B direction of arrow of presentation graphs 1, and the details of expression floating tubesheet seal.
Fig. 4 inserts the signal longitudinal section to the fitting operation of tube bank section before the shell for explanation with tube bank section.
Fig. 5 is the signal direction of arrow view of the C-C direction of arrow of presentation graphs 4.
Fig. 6 be for explanation namely just tube bank section insert the signal partial, longitudinal cross-sectional of the operation before the shell.
Fig. 7 be for explanation namely just tube bank section insert operation before the shell and the signal partial, longitudinal cross-sectional of update.
Fig. 8 is for the signal partial, longitudinal cross-sectional that illustrates the operation behind the tube bank section insertion shell.
Fig. 9 is the signal longitudinal section of the gas cooler of prior art 2.
Figure 10 is the signal direction of arrow view of the D-D direction of arrow of presentation graphs 9.
The specific embodiment
The shell-and-tube exchanger of embodiments of the present invention at first, is described with reference to accompanying drawing 1 ~ 3.Fig. 1 is the signal longitudinal section of the shell-and-tube exchanger of embodiments of the present invention, Fig. 2 is the signal direction of arrow view of the A-A direction of arrow of presentation graphs 1, Fig. 3 is the signal direction of arrow view of the B-B direction of arrow of presentation graphs 1, and the details of expression floating tubesheet seal.
Shell-and-tube exchanger of the present invention (following also referred to as " heat exchanger ") has and is the roughly shell 5 of the steel of tubular.This shell 5 is expressed as the rectangular drum like that two ends have opening 5a, 5b in embodiments of the present invention shown in Fig. 2,3, but is not limited to such barrel shape, and drum, cylindroid shape etc. are so long as two ends have the roughly tubular of opening gets final product.And, near one distolateral (opening 5a side) of shell 5, be formed with the gas access (first fluid entrance) of supplying with high-temperature gas (first fluid), near another distolateral (opening 5b side), be formed with the gas vent (first fluid outlet) of discharging cryogenic gas (first fluid).
And, in shell 5, contain tube bank section 1, described tube bank section 1 is, direction of principal axis along shell 5 disposes a plurality of plate wings (following also referred to as " fin ") 10 that formed by plate-shaped member with separating slight gap, and connects a plurality of pipes (pipe) 11 that cooling water (second fluid) passes through in the aperture portion that is arranged at these fins 10.Above-mentioned fin 10 and manage 11 from the thermal conductivity this point, the material of normal operation copper or aluminium alloy system.
And tube sheet 12 is fixed and be connected and fixed to distolateral in tube bank section 1 in the periphery of whole pipe 11, and is distolateral at another of tube bank section 1 on the other hand, can connect movably floating tubesheet 13 along tube axial direction with respect to whole pipe 11.Around the above-mentioned fixed tube sheet 12 to stretching out with the direction of the direction of principal axis approximate vertical of shell 5, and with a distolateral opening 5a butt of shell 5.
And, in this heat exchanger, shell 5 one distolateral possess import and export 2, it is formed with for cooling water inlet (second fluid entrance) 2a and coolant outlet (second fluid outlet) 2b that import cooling water (second fluid), is installed on fixed tube sheet 12.And, in this heat exchanger, another of shell 5 distolateral possess reflux 3, its for temporarily accommodate the cooling water of discharging from the pipe 11 of the part of tube bank section 1 and make its again be back to tube bank section 1 other pipe 11 and be installed on floating tubesheet 13.
In addition, in the inside that imports and exports 2, be provided with the demarcation strip that cooling water inlet (second fluid entrance) 2a and coolant outlet (second fluid outlet) 2b are separated.Constitute by this demarcation strip, the cooling water (second fluid) that is imported by cooling water inlet (second fluid entrance) 2a can directly not flow to coolant outlet (second fluid outlet) 2b, but the inside of the pipe 11 by tube bank section 1, backflow 3, the pipe 11 by tube bank section 1 flows to coolant outlet (second fluid outlet) 2b again.
Simultaneously, in this heat exchanger, possess: channel mask 4, with another distolateral opening 5b butt of shell 5,3 mode encloses cover to reflux; And floating tubesheet seal 8, engage with the periphery of floating tubesheet 13, and with the inner peripheral butt of channel mask 4.Reflux 3 and channel mask 4 between, as floating tubesheet 13 can because of the thermal expansion of tube bank section 1 etc. along the space that general horizontal direction is floated, be provided with floating space 4a.
And, fixed tube sheet 12 is fixed on the distolateral of shell 5 with importing and exporting 2 by the not shown bolt/nut that is installed on bolt axle center C1, on the other hand, to be fixed on another of shell 5 by the bolt/nut of inserting along bolt axle center C3 (diagram slightly) distolateral for channel mask 4.In addition, the fixing means of floating tubesheet 13 and 3 grade that reflux as described later.
On the other hand, in the inner space that is formed at shell 5, more specifically the top of the inner space between the outer surface of the inner surface that is formed at shell 5 and Duo Gen pipe 11 is equipped with top demarcation strip 6, is equipped with bottom demarcation strip 7 in the bottom of this inner space.Top demarcation strip 6 is in above-mentioned inner space, and the top inner surface that the upper surface of upper frame 14 that is provided in the top of tube bank section 1 is connected with shell connects and sealing along direction of principal axis.And bottom demarcation strip 7 is in above-mentioned inner space, and the lower inner surface that the lower surface of lower section frame 15 that is provided in the bottom of fin 10 and supporting fin 10 is connected with shell connects and sealing along direction of principal axis.
By these tops and bottom demarcation strip 6,7, the inner space of shell 5 is separated into space, High Temperature Gas side 21, and the cryogenic gas side space 22 of the existing side of gas vent 22a of the existing side of gas access 21a.In other words, on tube bank section 1 top in space, above-mentioned High Temperature Gas side 21, at a distolateral gas access 21a that is provided with of shell 5, on the other hand, on tube bank section 1 top in above-mentioned cryogenic gas side space 22, at another distolateral gas vent 22a that is provided with of shell 5.
And, above-mentioned floating tubesheet seal 8 is for space, High Temperature Gas side 21 and floating space 4a or sealing mechanism that cryogenic gas side space 22 and floating space 4a are separated, if this floating tubesheet seal 8 not, then the high-temperature gas in space, High Temperature Gas side 21 is through floating space 4a and cryogenic gas side space 22 short circuits.
Floating tubesheet seal 8 forms and may be partitioned into four plate member with elongated fan shape as shown in Figure 3, and for inserting bolt, is provided with respectively the open slotted hole 8a of an end opening of slotted hole at Liang Chu.These floating tubesheet seals 8 are formed by elastic plate, from sealing this point preference as being consisted of by the heat resistant rubber about the stainless steel about thickness 0.1 ~ 0.5mm or thickness 2 ~ 6mm.
And, be used for fixedly that the floating tubesheet seal push plate 9 of floating tubesheet seal 8 is rectangular plate member, near two ends, be provided with screwed hole 9a for fastening above-mentioned bolt at Liang Chu respectively.As the replacement of above-mentioned screwed hole 9a, also can form two place's through holes in same area, with the face of the face opposition side of pushing floating tubesheet seal 8 on welded nut.
And, set floating tubesheet seal push plate 9 in the mode on (four limits) around the floating tubesheet 13 of the essentially rectangular of the end that is arranged on tube bank section 1, by along the bolt axle center C2 of the screwed hole of this floating tubesheet seal push plate 9 and from 3 bolt that insert (diagram slightly) and four the floating tubesheet seals 8 of floating tubesheet 13 butt ground installation of refluxing.That is, from the inboard of heat exchanger, a floating tubesheet seal push plate 9, floating tubesheet seal 8, floating tubesheet 13 and reflux 3 fastening integratedly by above-mentioned bolt with this order.
Its result because these floating tubesheet seals 8 can be successfully and the inner peripheral butt of above-mentioned channel mask 4, therefore can prevent the damage of floating tubesheet seal 8, the decline that the gap produces the cooling capacity that causes.
In addition, floating tubesheet seal 8 for install easily and when pushing floating tubesheet seal 8 with channel mask 4 floating tubesheet seal 8 not yielding and and channel mask 4 between produce the gap, preferably be divided into as described above a plurality of.
Then, flowing of fluid in the heat exchanger is described.At first, cooling water is supplied with from 2 the cooling water inlet 2a of importing and exporting of the distolateral opening 5a that is installed on shell 5 via fixed tube sheet 12, carry out heat exchange by a plurality of pipes 11 interior one side in the tube bank section 1 with high-temperature gas on one side, arrival is installed on the backflow 3 of the other end side opening 5b of shell 5 via floating tubesheet 13, shown in the arrow of Fig. 1, again manage 11 interior backflows afterwards, simultaneously carry out heat exchange with high-temperature gas and return importing and exporting 2, outside coolant outlet 2b heat exchanger system, discharge.
On the other hand, be directed into space, High Temperature Gas side 21 as the high-temperature gas that cools off object from gas access 21a, flow into tube bank section 1 inside that has set a plurality of pipes 11.And the high-temperature gas that has flowed into tube bank section 1 inside carries out heat exchange (cooling) on one side by tube bank section 1 on one side with by the cooling water in a plurality of pipes 11, arrives cryogenic gas side space 22 as cryogenic gas.Afterwards, this cryogenic gas is discharged outside gas vent 22a heat exchanger system.
Above, shell-and-tube exchanger according to the embodiment of the present invention, floating tubesheet seal 8 divides the periphery of ceding territory to be provided in floating tubesheet 13 by the floating tubesheet seal push plate 9 that is used for engaging with the periphery of floating tubesheet 13, and, the a plurality of screwed hole 9a that are formed at this floating tubesheet seal push plate 9 from 3 the lateral of refluxing are screwed into bolt, integratedly fastening floating tubesheet seal push plate 9, floating tubesheet seal 8, a floating tubesheet 13 and reflux 3.
Its result, in suitably separately using the general plate-fin shell-and-tube exchanger of various parts, can carry out tube bank section 1 is inserted shell 5 when interior sealing not have the assembling that damages.And because the floating tubesheet seal 8 minutes cedes territory to consist of, so the installation of floating tubesheet seal 8 is easy, and with channel mask 4 pushing floating tubesheet seal 8 time, floating tubesheet seal 8 not yielding and and channel mask 4 between produce the gap.
The pith assemble method of the shell-and-tube exchanger of embodiments of the present invention then, is described referring to accompanying drawing 4 ~ 8.Fig. 4 inserts the signal longitudinal section to the assembly operation of tube bank section before the shell for explanation with tube bank section.Fig. 5 is the signal direction of arrow view of the C-C direction of arrow of presentation graphs 4.Fig. 6 be for explanation namely just tube bank section insert the signal partial, longitudinal cross-sectional of the operation before the shell.Fig. 7 be for explanation namely just tube bank section insert operation before the shell and the signal partial, longitudinal cross-sectional of update.Fig. 8 is for the signal partial, longitudinal cross-sectional that illustrates the operation behind the tube bank section insertion shell.
Before the shell 5 that tube bank section 1 is inserted as shown in Figure 1, shown in Fig. 4,5, by a plurality of fins 10 and pipe 11(diagram slightly) outer circumferential side of a distolateral pipe 11 of the tube bank section 1 that forms, be fixedly connected with fixed tube sheet 12 by welding etc., the opposing party, form the aperture that is arranged at the through hole of floating tubesheet 13 slightly larger than pipe 11 external diameter, another distolateral pipe 11 of tube bank section 1 is run through above-mentioned through hole, can connect floating tubesheet 13 along the general horizontal direction floating ground.
Then, set lower section frame 15 in the bottom of tube bank section 1, set upper frame 14 on the top of tube bank section 1, many bars 16 are connected in the tie rod holes that is formed at lower section frame 15 and upper frame 14 (diagram slightly), screw nut 16a and fastening at the screw thread of bar.By such structure, can prevent because of the distortion of the heat distribution upper frame 14 in the running of heat exchanger and fin 10 between produce gap delta.
Before just tube bank section 1 inserts shell 5 shortly, in the mode that can insert embedding floating tubesheet seal 8 afterwards, between floating tubesheet 13 and floating tubesheet seal push plate 9, vacate gap 23(with bolt looseness as illustrated in fig. 6), under this state, along bolt axle center C2 inserting bolt (diagram slightly) floating tubesheet seal push plate 93 is temporarily fixed on floating tubesheet 13 with refluxing.
Then as shown in Figure 7, top demarcation strip 6 is attached on the upper frame 14 in advance, bottom demarcation strip 7 is attached on the lower section frame 15 in advance, afterwards, distolaterally distolaterally side by side be inserted in the shell 5 with tube bank section 1 to another from one of shell 5.
And, insert after the tube bank section 1, as shown in Figure 8, floating tubesheet seal 8 is inserted the gap 23 that is formed between floating tubesheet 13 and the floating tubesheet seal push plate 9, the open slotted hole 8a of floating tubesheet seal 8 is combined the bolt (diagram slightly) that is intercalated in C2 position, bolt axle center, afterwards, these bolts are inserted from 3 the outside of refluxing, screw and tighten with the screwed hole (the symbol 9a of Fig. 3) of floating tubesheet seal push plate 9, floating tubesheet seal 8 is fixed in floating tubesheet 13.At last, by the bolt that inserts along bolt axle center C2 (diagram slightly), channel mask 4 is installed on the flange of the other end side opening 5b of shell 5 in the mode with butt around the floating tubesheet seal 8.
As mentioned above, the assemble method of shell-and-tube exchanger according to the embodiment of the present invention, before tube bank section 1 is inserted shell 5, between floating tubesheet 13 and floating tubesheet seal push plate 9, vacate gap 23, under this state, inserting bolt and floating tubesheet seal push plate 9 is temporarily fixed on the floating tubesheet 13, then, with tube bank section 1 from shell 5 one distolateral in another distolateral insertion shell 5 after, floating tubesheet seal 8 is inserted gap 23, the open slotted hole 8a that is formed at floating tubesheet seal 8 is combined the C2 position, bolt axle center that is intercalated in above-mentioned bolt, from 3 the outside of refluxing with these bolt tightenings, floating tubesheet seal 8 is fixed on the floating tubesheet 13, on the other hand, channel mask 4 is installed on shell 5 with the periphery butt of floating tubesheet seal 8.
Its result owing to floating tubesheet seal 8 not being installed when interior tube bank section 1 being inserted shell 5, and installs after inserting tube bank section 1 in the shell 5, so can carry out the assembling that sealing does not have the shell-and-tube exchanger that damages.
And, when the safeguarding of tube bank section 1, as long as according to disintegrating with the antipodal order of said sequence, then can removing floating tubesheet seal 8 after, tube bank section 1 be extracted in shell 5, therefore can carry out the maintenance that sealing does not have the tube bank section 1 of the heat exchanger that damages.
Claims (4)
1. shell-and-tube exchanger possesses:
Roughly the shell of tubular has opening at two ends, the first fluid outlet that is formed with the first fluid entrance of supplying with first fluid and discharges first fluid;
Tube bank section is inserted in this shell, comprises a plurality of fins, and connects a plurality of pipes that these fins and second fluid pass through;
Fixed tube sheet with one of above-mentioned shell distolateral opening butt, and is fixedly connected on the distolateral of above-mentioned tube bank section;
Floating tubesheet, with another distolateral opening butt of above-mentioned shell, and can be along the enough floating grounds of general horizontal direction another distolateral connection with above-mentioned tube bank section;
Import and export head, distolateral at above-mentioned shell is formed be used to the second fluid entrance that imports and exports above-mentioned second fluid and second fluid outlet, is installed on above-mentioned fixed tube sheet;
The backflow head, distolateral at another of above-mentioned shell, be used for temporarily accommodating the above-mentioned second fluid of discharging from above-mentioned tube bank section and make it again be back to above-mentioned tube bank section, be installed on above-mentioned floating tubesheet;
Channel mask, another the distolateral opening butt with above-mentioned shell encloses in the mode that covers above-mentioned backflow head; And
The floating tubesheet seal engages with the periphery of above-mentioned floating tubesheet, and with the inner peripheral butt of above-mentioned channel mask.
2. shell-and-tube exchanger as claimed in claim 1 is characterized in that,
Above-mentioned floating tubesheet seal constitutes and can cut apart.
3. shell-and-tube exchanger as claimed in claim 2 is characterized in that,
Above-mentioned floating tubesheet seal is around in the periphery of above-mentioned floating tubesheet by being used for the floating tubesheet seal push plate that engages with above-mentioned floating tubesheet,
From being formed at a plurality of screwed holes of this floating tubesheet seal push plate, the lateral of above-mentioned backflow head screws in bolt, and above-mentioned floating tubesheet seal push plate, above-mentioned floating tubesheet seal, above-mentioned floating tubesheet and above-mentioned backflow head is fastening integratedly.
One kind the assembling shell-and-tube exchanger as claimed in claim 3 method,
Before above-mentioned tube bank section is inserted above-mentioned shell, with after can insert and be packed with the mode of stating the floating tubesheet seal and between above-mentioned floating tubesheet and above-mentioned floating tubesheet seal push plate, vacate the gap, under this state, insert above-mentioned bolt and above-mentioned floating tubesheet seal push plate is temporarily fixed on above-mentioned floating tubesheet
Then, distolateral distolateral to another from above-mentioned shell inserts above-mentioned tube bank section in the above-mentioned shell,
Afterwards, above-mentioned floating tubesheet seal is inserted the above-mentioned gap that is formed between above-mentioned floating tubesheet and the above-mentioned floating tubesheet seal push plate, makes the open slotted hole that is formed at above-mentioned floating tubesheet seal be combined the shaft core position that is intercalated in above-mentioned bolt,
These bolts are tightened from the outside of above-mentioned backflow head, above-mentioned floating tubesheet seal are fixed in above-mentioned floating tubesheet,
On the other hand, with the periphery butt of above-mentioned channel mask and above-mentioned floating tubesheet seal and be installed on above-mentioned shell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-062415 | 2012-03-19 | ||
| JP2012062415A JP2013194989A (en) | 2012-03-19 | 2012-03-19 | Shell-and-tube heat exchanger and assembling method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322836A true CN103322836A (en) | 2013-09-25 |
| CN103322836B CN103322836B (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310085686.4A Expired - Fee Related CN103322836B (en) | 2012-03-19 | 2013-03-18 | Shell-and-tube exchanger and assemble method thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2013194989A (en) |
| KR (1) | KR101512224B1 (en) |
| CN (1) | CN103322836B (en) |
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| CN106460625A (en) * | 2015-03-04 | 2017-02-22 | 株式会社三五 | Heat exchanger, and exhaust heat recovery device provided with said heat exchanger |
| CN109416890A (en) * | 2016-07-07 | 2019-03-01 | 株式会社华尔卡 | The practice device and practice method of seal construction |
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| KR101528222B1 (en) * | 2014-02-07 | 2015-06-12 | 한국원자력연구원 | Mixed type steam generator and nuclear power plant having the same |
| CN106838519B (en) * | 2017-03-20 | 2019-02-05 | 苏州道众机械制造有限公司 | A kind of convenient tube sheet of maintenance |
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| KR102413066B1 (en) | 2020-08-20 | 2022-06-29 | 주식회사 동화엔텍 | Shell and tube type heat exchanger including dual tube |
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| KR200448730Y1 (en) * | 2008-07-04 | 2010-05-11 | (주)일진에너지 | Floating Head Type Heat Exchanger |
| KR20120004852A (en) * | 2010-07-07 | 2012-01-13 | 주식회사 우건이엔지 | Shell and tube heat exchanger for making distilled water |
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| CN103673693A (en) * | 2013-12-10 | 2014-03-26 | 山东蓝星清洗防腐公司 | Novel crude oil normal-pressure tower top oil-gas heat exchanger |
| CN106460625A (en) * | 2015-03-04 | 2017-02-22 | 株式会社三五 | Heat exchanger, and exhaust heat recovery device provided with said heat exchanger |
| CN109416890A (en) * | 2016-07-07 | 2019-03-01 | 株式会社华尔卡 | The practice device and practice method of seal construction |
| CN109416890B (en) * | 2016-07-07 | 2021-02-09 | 株式会社华尔卡 | Training device and training method for sealing construction |
| CN109416890B9 (en) * | 2016-07-07 | 2021-05-11 | 株式会社华尔卡 | Training device and training method for sealing construction |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130106314A (en) | 2013-09-27 |
| KR101512224B1 (en) | 2015-04-14 |
| CN103322836B (en) | 2015-07-29 |
| JP2013194989A (en) | 2013-09-30 |
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