CN205300319U - High pressure heat transducer - Google Patents
High pressure heat transducer Download PDFInfo
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- CN205300319U CN205300319U CN201521066047.4U CN201521066047U CN205300319U CN 205300319 U CN205300319 U CN 205300319U CN 201521066047 U CN201521066047 U CN 201521066047U CN 205300319 U CN205300319 U CN 205300319U
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Abstract
The utility model discloses a high pressure heat transducer belongs to petrochemical equipment technical field, and high pressure heat transducer includes: fixed connection's tube box flange, pipe pass cylinder body, shell cylinder body and shell cylinder body head in proper order, be provided with the column tube sheet in pipe pass cylinder body's the tubulose opening, the external diameter of column tube sheet is lighter than tubulose open -ended internal diameter, is provided with seal gasket on the tubulose open -ended inner wall and between the column tube sheet, be provided with heat exchange tube, pass partition and branch journey case in the space that pipe pass cylinder body, shell cylinder body and shell cylinder body head formed, the last inside bolt assembly that is provided with of tube box flange, inside bolt assembly is connected with branch journey case, and inside bolt assembly's fastening power can be transmitted to the column tube sheet through a minute journey case to the press the sealing gasket. The utility model provides a process of high pressure heat transducer when carrying out hydrostatic test more complicated, the process when high pressure heat transducer carries out hydrostatic test has been simplified, the cost is reduced to and the higher problem of cost for hydrotreatment technology.
Description
Technical field
This utility model relates to petrochemical equipment technical field, particularly to a kind of high pressure heat exchanger.
Background technology
Along with the raising of expanding economy and environmental requirement, the status changing the hydroprocessing techniques such as oil property, the reduction hydrofinishing of Sulfur Content in Petroleum Products, hydro-upgrading and hydrogenation cracking becomes more and more important. The research of various hydrogenation plants receives extensive concern, and high pressure heat exchanger is the visual plant in hydrogenation plant, and it not only provides the process conditions of necessity for production process, and minimizing energy resource consumption, reduction production cost are played an important role. Hydrogenation reaction is usually and carries out when high temperature, high pressure, medium is again explosive hydrogen and hydro carbons, therefore hydroprocessing technique is significantly high to the requirement of high pressure heat exchanger, high pressure heat exchanger manufactures to typically require afterwards and carries out the water pressure test, for examining bulk strength and the sealing property of high pressure heat exchanger.
Prior art has a kind of high pressure heat exchanger, this high pressure heat exchanger is as it is shown in figure 1, include: shell side inlet 11, tube sheet 21, point journey case 31, tube-side inlet 41, bobbin carriage cylinder 51, inner sleeve 61, channel flange 71, welding gasket 81, channel flange lid 91, kingbolt 101, inner ring bolt 111, point journey cover plate 121, inner ring bolt collar 131, tube side outlet 141, heat exchanger tube 151 and shell-side outlet 161. Tube sheet 21 is shell side by being divided into two parts, the side of tube sheet 21 inside hot for high-voltage tube device, and the opposite side of tube sheet 21 is tube side. The structure of this high pressure heat exchanger is outside adjustable welded seal gasket structure, and this high pressure heat exchanger by arranging a circle kingbolt 101 on channel flange lid 91, it is achieved the installation of channel flange lid 91. When tube sheet, heat exchanger tube and welding point thereof being carried out the water pressure test in shell side side, it is necessary to compress tube sheet 21 and realize the sealing of tube side and shell side, observe the water pressure test process within high pressure heat exchanger in tube side side simultaneously. Owing to this channel flange lid 91 is Circular plate structure, if so compressing tube sheet to realize the sealing of tube side and shell side by channel flange lid 91, then cannot observe the water pressure test process within high pressure heat exchanger in tube side side, so needing to install pressure testing mold on the position installing channel flange lid 91, complete water pressure test process.Pressure testing mold is for observing the water pressure test process within high pressure heat exchanger.
Owing to above-mentioned high pressure heat exchanger needs pressure testing mold to complete water pressure test process, therefore, process when high pressure heat exchanger carries out the water pressure test is more complicated and relatively costly.
Utility model content
The problem more complicated and relatively costly in order to solve process when high pressure heat exchanger carries out the water pressure test, this utility model provides a kind of high pressure heat exchanger. Described technical scheme is as follows:
Provide a kind of high pressure heat exchanger, including: channel flange, tube side cylinder, shell-side cylinder and the shell-side cylinder end socket being fixedly connected sequentially;
Described tube side cylinder is provided with shell side inlet, shell-side outlet, tube-side inlet and tube side outlet, it is provided with column tube sheet in the tubular opening of described tube side cylinder, the external diameter of described column tube sheet, less than the internal diameter of described tubular opening, is provided with gasket seal on the inwall of described tubular opening and between described column tube sheet;
The space that described tube side cylinder, described shell-side cylinder and described shell-side cylinder end socket are formed is provided with heat exchanger tube, pass partition and point journey case, one end of described heat exchanger tube and one end of described pass partition are all fixing with described column tube sheet to be connected, described heat exchanger tube and described pass partition are positioned at the side of described column tube sheet, described point of journey case is positioned at the opposite side of described column tube sheet, and described heat exchanger tube, described pass partition are parallel with the length direction of described shell-side cylinder with the length direction of described point of journey case;
Being provided with internal-flange bolt assembly on described channel flange, described internal-flange bolt assembly is connected with described point of journey case, and the fastening force of described internal-flange bolt assembly can be transferred to described column tube sheet by described point of journey case, and compresses described gasket seal.
Optionally, described internal-flange bolt assembly includes locating ring, separating and joining ring and internal-flange bolt;
Described locating ring and described separating and joining ring are fixed in the annular groove of described channel flange;
Described internal-flange bolt is connected in the annular groove of described channel flange by described locating ring and described separating and joining ring, described internal-flange bolt is connected with described point of journey case, the fastening force that described internal-flange bolt produces can be transferred to described column tube sheet by described point of journey case, and compresses described gasket seal.
Optionally, described high pressure heat exchanger also includes: inner sleeve, pushing out ring and channel cover;
The interior side contacts of the outside of described inner sleeve and described internal-flange bolt assembly, one end of described pushing out ring and the described inner sleeve end thereof contacts away from described tube-side inlet;
Described channel cover is connected with described channel flange by outer bolt assembly, and the contact position of described channel cover and described channel flange is provided with sealing structure.
Optionally, described sealing structure includes the sealing plate and the ring pad that weld successively.
Optionally, described channel cover is provided with the inner ring ejector pin and inner ring bolt that are sequentially connected with, described inner ring ejector pin and described support loop contacts, the fastening force that described inner ring ejector pin and described inner ring bolt produce can be transferred to described column tube sheet by described pushing out ring, described inner sleeve and described point of journey case, and compresses described gasket seal.
Optionally, described outer bolt assembly includes kingbolt and mother nut.
Optionally, described heat exchanger tube is U-shape structure.
This utility model provides a kind of high pressure heat exchanger, owing to the channel flange of this high pressure heat exchanger being provided with internal-flange bolt assembly, the fastening force of internal-flange bolt assembly can be transferred to column tube sheet by a point journey case, and compresses gasket seal, thus realizing the sealing of tube side and shell side, compared to prior art, when carrying out the water pressure test, it is not necessary to use pressure testing mold, therefore, simplify process when high pressure heat exchanger carries out the water pressure test, and reduce cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of high pressure heat exchanger in prior art;
Fig. 2 is the structural representation of a kind of high pressure heat exchanger that this utility model embodiment provides;
Fig. 3 is the close-up schematic view sealing structure in embodiment illustrated in fig. 2;
Fig. 4 is the structural representation of another kind of high pressure heat exchanger in prior art;
Fig. 5 is the structural representation of another high pressure heat exchanger in prior art;
Fig. 6 is the structural representation of another high pressure heat exchanger in prior art;
Fig. 7 is the close-up schematic view of half �� ring flat-plate and half �� plate region in high pressure heat exchanger shown in Fig. 6.
By above-mentioned accompanying drawing, it has been shown that the embodiment that this utility model is clear and definite, will there is more detailed description hereinafter. These accompanying drawings and word describe the scope being not intended to be limited this utility model design by any mode, but by concept of the present utility model being described with reference to specific embodiment for those skilled in the art.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, this utility model embodiment is described in further detail.
This utility model embodiment provides a kind of high pressure heat exchanger, as in figure 2 it is shown, this high pressure heat exchanger includes: channel flange 62, tube side cylinder 92, shell-side cylinder 112 and the shell-side cylinder end socket 122 being fixedly connected sequentially.
Tube side cylinder 92 is provided with shell side inlet 102, shell-side outlet 162, tube-side inlet 182 and tube side outlet 82, the opening part of tube side cylinder 92 is provided with column tube sheet 152, the external diameter of column tube sheet 152 is less than the internal diameter of opening part, gasket seal 172 it is provided with on the inwall of tubular opening and between column tube sheet 152, wherein, the external diameter of column tube sheet 152 is slightly less than the internal diameter of the opening part of tube side cylinder 92.
The space that tube side cylinder 92, shell-side cylinder 112 and shell-side cylinder end socket 122 are formed is provided with heat exchanger tube 142, pass partition 132 and point journey case 72, one end of heat exchanger tube 142 and one end of pass partition 132 are all fixing with column tube sheet 152 to be connected, heat exchanger tube 142 and pass partition 132 are positioned at the side of column tube sheet 152, point journey case 72 is positioned at the opposite side of column tube sheet 152, and heat exchanger tube 142, pass partition 132 are parallel with the length direction of shell-side cylinder 112 with the length direction of point journey case 72.
Channel flange 62 is provided with internal-flange bolt assembly 100, internal-flange bolt assembly 100 is connected with a point journey case 72, the fastening force of internal-flange bolt assembly 100 can pass through a point journey case 72 and be transferred to column tube sheet 152, and compresses gasket seal 172, it is achieved the sealing of tube side and shell side.
In sum, the high pressure heat exchanger that this utility model embodiment provides, owing to being provided with internal-flange bolt assembly on the channel flange of this high pressure heat exchanger, the fastening force of internal-flange bolt assembly can be transferred to column tube sheet by a point journey case, and compress gasket seal, thus realizing the sealing of tube side and shell side, compared to prior art, when carrying out the water pressure test, without using pressure testing mold, therefore, simplify process when high pressure heat exchanger carries out the water pressure test, and reduce cost.
Further, as in figure 2 it is shown, internal-flange bolt assembly 100 includes locating ring 192, separating and joining ring 202 and internal-flange bolt 212.
Locating ring 192 and separating and joining ring 202 are fixed in the annular groove of channel flange 62.
Internal-flange bolt 212 is connected in the annular groove of channel flange 62 by locating ring 192 and separating and joining ring 202, internal-flange bolt 212 is connected with a point journey case 72, the fastening force that internal-flange bolt 212 produces can pass through a point journey case 72 and be transferred to column tube sheet 152, and compress gasket seal 172, it is achieved the sealing of tube side and shell side.
Further, as in figure 2 it is shown, high pressure heat exchanger also includes: inner sleeve 222, pushing out ring 232 and channel cover 32.
The interior side contacts of the outside of inner sleeve 222 and internal-flange bolt assembly 100, one end of a pushing out ring 232 and inner sleeve 222 end thereof contacts away from tube-side inlet 82.
Channel cover 32 is connected with channel flange 62 by outer bolt assembly 200, and the contact position of channel cover 32 and channel flange 62 is provided with sealing structure 300 (representing in Fig. 2) with letter " I ".
Optionally, as it is shown on figure 3, seal sealing plate 42 and the ring pad 52 that structure 300 includes welding successively. In Fig. 3 62 are channel flange, and 32 is channel cover.
Further, as shown in Figure 2, channel cover 32 is provided with the inner ring ejector pin 242 and inner ring bolt 252 that are sequentially connected with, inner ring ejector pin 242 contacts with a pushing out ring 232, the fastening force that inner ring ejector pin 242 and inner ring bolt 252 produce can pass through a pushing out ring 232, inner sleeve 222 and a point journey case 72 and be transferred to column tube sheet 152, and compresses gasket seal 172. Outer bolt assembly 200 includes kingbolt 12 and mother nut 22.
Optionally, heat exchanger tube 142 is U-shape structure.
Concrete, as in figure 2 it is shown, this high pressure heat exchanger is shell-and-tube heat exchanger, the outside pressure-bearing shell of this high pressure heat exchanger includes channel cover 32, channel flange 62, tube side cylinder 92, shell-side cylinder 112 and shell-side head 122. Channel flange 62, tube side cylinder 92, shell-side cylinder 112 and shell-side head 122 are welded successively. The mode of swollen structure is sticked in the intensity weldering that is connected by of heat exchanger tube 142 and column tube sheet 152, and the sealing surface of column tube sheet 152 is positioned at enclosure interior, realizes the sealing between tube side and shell side by gasket seal 172. Bobbin carriage end is channel cover 32, channel cover 32 is connected with channel flange 62 by kingbolt 12 and mother nut 22, major diameter sealing surface between channel cover 32 and channel flange 62 is provided with sealing structure 300, this sealing structure 300 is welded seal structure, channel cover 32 and sealing plate 42 can be opened during maintenance, whole tube bank being extracted out, tube bank includes but not limited to pass partition 132, heat exchanger tube 142 and column tube sheet 152. As it is shown on figure 3, seal structure 300 to include ring pad 52 and sealing plate 42, example, ring pad 52 is metallic ring-plate, and sealing plate 42 is metal plate, and the outer rim of ring pad 52 and sealing plate 42 all has overhanging weldering lip, in order to welding and polishing. Ring pad 52 welds with channel flange 62; Sealing plate 42 welds with ring pad 52, welded joint structure is compact, welding job amount is little, can multiple welding and polishing, need not compressing sealing plate 42 owing to sealing structure 300, therefore channel flange 62, channel cover 32 and kingbolt 12 etc. have only to bear the inner pressuring load from medium, have less size relative to forced seal structure, weight metal, easy disassembly can be alleviated.
Bobbin carriage is provided with the internal-flange bolt assembly 100 of convenient dismounting, internal-flange bolt assembly 100 includes locating ring 192, separating and joining ring 202 and internal-flange bolt 212, the internal-flange bolt 212 of internal-flange bolt assembly 100 is stuck in the annular groove of channel flange 62 by separating and joining ring 202 and locating ring 192, fastening force on internal-flange bolt 212 can be transferred on column tube sheet 152 by a series of force transmission elements, compress the gasket seal 172 between column tube sheet 152 and cylinder, thus the sealing realized between tube side and shell side. The effect of internal-flange bolt assembly 100 includes two aspects: first aspect, when column tube sheet 152, heat exchanger tube 142 and welding point thereof are carried out the water pressure test, column tube sheet 152, the gasket seal 172 sealing to realize between tube side and shell side can be compressed by tightening internal-flange bolt 212, and can enter inside bobbin carriage process of the test is observed, it is not necessary to special pressure testing mold;Second aspect, when high pressure heat exchanger is operated, internal-flange bolt assembly 100 can share the sealing pressure of the gasket seal 172 between tube side and shell side, internal-flange bolt assembly 100 can with inner ring bolt 252 combined effect on bobbin carriage end channel cover 32, it is provided that more structurally sound sealing function.
The channel cover 32 of bobbin carriage end is provided with a circle screwed hole, each screwed hole is furnished with inner ring ejector pin 242 and inner ring bolt 252, when inner ring ejector pin 242 and inner ring bolt 252 being carried out tightening operation outside high pressure heat exchanger, the fastening force that tightening operation produces can by a series of force transmission elements such as a pushing out ring 232, inner sleeve 222, point journey case 72 etc., it is transferred on column tube sheet 152, compress the gasket seal 172 between column tube sheet 152 and cylinder, thus the sealing regulated between tube side and shell side.
The inside of this high pressure heat exchanger is divided into two parts, the side of column tube sheet 152 to be tube side by heat exchanger tube 142, column tube sheet 152 and gasket seal 172, and the opposite side of column tube sheet 152 is shell side. Tube side and shell side are two cavitys separated from one another. Tube side is by tube side outlet 82 and tube-side inlet 182 and ft connection, and shell side is by shell side inlet 102 and shell-side outlet 162 and ft connection.
Tube side medium and shell side medium are high-pressure medium. The medium of different temperatures respectively enters tube side and shell side, then in the inside and outside flowing of heat exchanger tube, by the tube wall of heat exchanger tube, the medium of different temperatures is carried out conduction of heat, is reached for higher temperature medium cooling or the purpose heated up for lower temperature medium. Heat exchanger tube can be U-tube, and tube side medium flows into from one end of U-tube, flows out from the other end with after shell side media for heat exchange, and the temperature of tube side medium there occurs change. In order to the tube side medium after the tube side medium before preventing heat exchange and heat exchange mixes, the tube side of this high pressure heat exchanger is internally provided with a point journey case, and point journey case is separated for the tube side medium before heat exchanging and the tube side medium after heat exchange.
As shown in Figure 2, tube side medium enters inside tube side from tube-side inlet 182, in the flowing of the side of point journey case 72, tube side medium enters heat exchanger tube 142 under the effect of medium pressure itself, and carrying out heat exchange with shell side medium in heat exchanger tube 142, after heat exchange is complete, tube side medium flows out from the other end of heat exchanger tube 142 again, enter the opposite side of point journey case 72, then export 82 outflows from tube side again. And shell side medium enters inside shell side from shell side inlet 102, flow to the right above pass partition 132, shell side medium flows after walking around the end of pass partition 132 from below to the left, exchanging with the tube side medium heat in heat exchanger tube in flow process, last shell side medium flows out from shell-side outlet 162.
Further, tube side is realized by the combined effect of column tube sheet, heat exchanger tube and gasket seal with the separation of shell side. Wherein, at the end of heat exchanger tube and column Tube-sheet Welding after heat exchanger tube traverse column tube sheet; Gasket seal is between column tube sheet and tube side cylinder, so, it is possible to rely on the elasticity of gasket seal and deformation to stop medium through the gap column tube sheet and tube side cylinder. The sealing mechanism of gasket seal is identical with flange gasket, it is desirable to have enough thrusts compress gasket seal, can be only achieved sealing effectiveness. This thrust comes from two groups of bolts: internal-flange bolt and inner ring bolt.
As shown in Figure 2, when manufacturing this high pressure heat exchanger, first channel flange 62, tube side cylinder 92, shell-side cylinder 112 and shell-side head 122 are welded together successively, (end of the mouthpiece of tube-side inlet 82, tube side outlet 182, shell side inlet 102 and shell-side outlet 162 all can be provided with removable enclosed construction to weld tube-side inlet 82, tube side outlet 182, shell side inlet 102 and shell-side outlet 162 again, until whole manufactures, be verified after this enclosed construction is removed, then mouthpiece is welded with external pipe).Then again gasket seal 172, heat exchanger tube 142, column tube sheet 152, point journey case 72, locating ring 192, the separating and joining ring 202 position shown in Fig. 2 are installed, be then screwed into internal-flange bolt 212 with enough moment and compress gasket seal 172. Then, it is forced into the hydraulic test pressure of regulation at shell side side water-filling, column tube sheet 152 is carried out pressure test, enter and inside bobbin carriage, process of the test is observed. After above-mentioned pass the test, inner sleeve 222 and a pushing out ring 232 are installed by the structure shown in Fig. 2, ring pad 52 and sealing plate 42 are welded successively, detect qualified after channel cover 32, inner ring ejector pin 242, inner ring bolt 252 are installed again, then kingbolt 12 and mother nut 22 are tightened, so far, the manufacture process of whole high pressure heat exchanger is completed.
When this high pressure heat exchanger is opened and inspect, is keeped in repair, as shown in Figures 2 and 3, can first turn on mother nut 22 and kingbolt 12, open channel cover 32, the modes such as cutting or polishing are adopted to remove the welding point between sealing plate 42 and ring pad 52, take off sealing plate 42, disassemble pushing out ring 232, inner sleeve 222, internal-flange bolt 212, separating and joining ring 202, locating ring 192, point journey case 72 within bobbin carriage more successively, then pull out column tube sheet 152 and heat exchanger tube 142, thus easily each parts of high pressure heat exchanger can be carried out inspection and maintenance.
It should be added that, in order to reduce leakage point, tube side and shell side opening can adopt the connected mode with pipeline welding. Tube bank can be completely drawn out from tube case side during maintenance, it is achieved the major tune-up of tube bank and inner walls, it is not necessary to mobile shell. Tube side cylinder and the shell-side cylinder of the high pressure heat exchanger that this utility model embodiment provides are welded as a whole, the technique opening (i.e. tube side outlet, tube-side inlet, shell side inlet and shell-side outlet) of high pressure heat exchanger is connected with pipeline welding, bobbin carriage end be sealed into welded seal, so, eliminate high pressure heat exchanger and extraneous leakage point, be a kind of extremely reliable structure from sealing angle. Additionally, tube side cylinder and shell-side cylinder are welded as a whole, also help tube side opening and the layout of shell side opening, make tube side opening and shell side opening to greatest extent near column tube sheet, reduce heat exchange dead band, shorten the length of cylinder and high pressure heat exchange pipe, alleviate weight metal, reduce cost.
Also needing to supplementary notes, Fig. 2 is illustrated that the high pressure heat exchanger of a kind of two tube sides, double-shell. Further, it is also possible to point journey case 72 and pass partition 132 to the high pressure heat exchanger shown in Fig. 2 are modified, obtaining the high pressure heat exchanger of other numbers of tube passes and other number of shell passes, example, number of tube passes can be 2,4,6,8 etc., and number of shell passes can be 1,2 etc.
Additionally, the high pressure heat exchanger for being hydrogenated with mainly has three kinds of versions in prior art: flange form, screw-threaded coupling ring type and welded seal formula. Owing to the metal consumption of flange form high pressure heat exchanger is big, and seal unreliable, so, along with use less after the increase of hydrogenation device for treatment amount and the maximization of heat transmission equipment. Using more high pressure heat exchanger in petrochemical equipment at present is screw-threaded coupling ring type high pressure heat exchanger and welded seal formula high pressure heat exchanger. Wherein, the compact conformation of screw-threaded coupling ring type high pressure heat exchanger, metal consumption is less, sealing reliability is better, but the structure of screw-threaded coupling ring type high pressure heat exchanger is more complicated, and machined piece is more, the installation of high pressure heat exchanger, dismantlement work amount are bigger, and major thread requirement on machining accuracy is higher, its processing and manufacturing difficulty is bigger.Along with the maximization of high pressure heat exchanger, sealing reliability decreases. Fig. 4 illustrates the structural representation of screw-threaded coupling ring type high pressure heat exchanger, and in Fig. 4,14 is bobbin carriage housing, and 24 is tube sheet, 34 is a point journey case, and 44 is tube-side inlet, and 54 is internal-flange bolt, 64 is locating ring, and 74 is separating and joining ring, and 84 is inner sleeve, 94 is bobbin carriage gasket seal, and 104 is outer ring bolt collar, and 114 is outer ring bolt, 124 is inner ring bolt, and 134 is thread-locking ring, and 144 is inner ring bolt collar, 154 is end cap, and 164 is flexible sealing dish, and 174 is support ring.
Welded seal formula high pressure heat exchanger is according to the compression mode of the gasket seal between tube side and shell side, the form of welded seal gasket can be divided into various structures type, Fig. 5 illustrates the structural representation of a kind of welded seal formula high pressure heat exchanger, the bobbin carriage end of this welded seal formula high pressure heat exchanger adopts welding gasket to seal, it is absent from leakage interface, improve the reliability of sealing, and simple in construction, machined piece is less, manufacture difficulty is relatively low, but this structure is in the inside of high pressure heat exchanger due to the fixing bolt 45 of tube sheet, the fixing bolt 45 of tube sheet is in high-temperature hydro-refining for a long time, under Korrosionsmedium environment, add higher stress, the fixing bolt 45 of tube sheet is easily killed, give following high pressure heat exchanger maintenance, dismounting causes difficulty, and in operational conditions between tube side and shell side during string leakage, cannot not stop work and the sealing of tube sheet is fastened again. owing to its diaphragm type pad 95 directly welds with channel flange 85, no matter it is welding diaphragm type pad 95 or dismounting diaphragm type pad 95, it is required for directly constructing on channel flange 85, not only operates inconvenience, more the material property of channel flange 85 can be had adverse effect on. wherein, in Fig. 5,15 is shell side inlet, and 25 is tube sheet gasket seal, 35 is tube sheet, and 45 is the fixing bolt of tube sheet, and 55 is tube-side inlet, 65 is a point journey case, and 75 is bobbin carriage cylinder, and 85 is channel flange, 95 is diaphragm type pad, and 105 is channel flange lid, and 115 is kingbolt, 125 is a point journey cover plate, 135 export for tube side, and 145 is heat exchanger tube, and 155 is shell-side outlet. Fig. 6 illustrates the structural representation of another kind of welded seal formula high pressure heat exchanger, as shown in Figure 6, the �� boxing that the structure of welded seal formula high pressure heat exchanger is with regulating connects sheet gasket structure, it is combining exploitation on the basis of thread-locking ring and �� ring welding gasket advantage, although this structure can overcome the defect of the welded seal structure of the welded seal formula high pressure heat exchanger shown in Fig. 5, but there are some drawbacks: larger in size due to �� ring, so bolt circle is arranged bigger, corresponding channel flange size is also relatively big, adds weight of equipment and investment, owing to there is certain dead band in the cavity in �� ring welding gasket (i.e. the �� ring of the upper end composition of half �� ring flat-plate 76 and half �� plate 86), so �� ring welding gasket is easily generated corrosion during normal operating, it addition, have a certain amount of hydrogen or oil gas in cavity in �� ring welding gasket, it is difficult to when device is stopped work to purge clean, during cutting �� ring welding gasket, can there is potential safety hazard. when tube sheet, heat exchanger tube and welding point thereof being carried out the water pressure test at shell side side water-filling, it is necessary to compress tube sheet and realize sealing, observe in tube side side simultaneously, and channel flange lid 96 is an overall plectane, after installation, just cannot be carried out the observation in water pressure test process, it is therefore desirable to make special pressure testing mold, waste material, increase cost.In Fig. 6,16 is shell side inlet, and 26 is tube sheet, 36 is a point journey case, and 46 is tube-side inlet, and 56 is inner sleeve, 66 is channel flange, and 76 is half �� ring flat-plate, and 86 is half �� plate, 96 is channel flange lid, and 106 is kingbolt, and 116 is inner ring bolt, 126 is a point journey cover plate, and 136 is inner ring bolt collar, and 146 export for tube side, 156 is heat exchanger tube, and 166 is shell-side outlet, and the region indicated by J is the region at half �� ring flat-plate 76 and half �� plate 86 place. Fig. 7 illustrates the close-up schematic view in the region in Fig. 6 indicated by J, and in Fig. 7,76 is half �� ring flat-plate, and 86 is half �� plate.
The high pressure heat exchanger that this utility model embodiment provides, compared to Figure 4 and 5, structure is simpler, manufacture difficulty is lower, and heat exchange dead band is less, using rate of metal is higher, and sealing reliability is higher. Compared to Fig. 6 and Fig. 1, maintenance maintenance is more convenient, and solves the problem that welded seal formula high pressure heat exchanger needs special pressure testing mold when carrying out the water pressure test.
In sum, the high pressure heat exchanger that this utility model embodiment provides, owing to the channel flange of this high pressure heat exchanger being provided with internal-flange bolt assembly, the fastening force of internal-flange bolt assembly can be transferred to column tube sheet by a point journey case, and compress gasket seal, thus realizing the sealing of tube side and shell side, compared to prior art, when carrying out the water pressure test, without using pressure testing mold, therefore, simplify process when high pressure heat exchanger carries out the water pressure test, and reduce cost, simultaneously, sealing plate is with the welding of ring pad, easily operated, welded joint structure is compact, welding job amount is little, can multiple welding and polishing, when high pressure heat exchanger runs, by inner ring ejector pin and inner ring bolt, the sealing between tube side and shell side can be adjusted.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (7)
1. a high pressure heat exchanger, it is characterised in that including: channel flange, tube side cylinder, shell-side cylinder and the shell-side cylinder end socket being fixedly connected sequentially;
Described tube side cylinder is provided with shell side inlet, shell-side outlet, tube-side inlet and tube side outlet, it is provided with column tube sheet in the tubular opening of described tube side cylinder, the external diameter of described column tube sheet, less than the internal diameter of described tubular opening, is provided with gasket seal on the inwall of described tubular opening and between described column tube sheet;
The space that described tube side cylinder, described shell-side cylinder and described shell-side cylinder end socket are formed is provided with heat exchanger tube, pass partition and point journey case, one end of described heat exchanger tube and one end of described pass partition are all fixing with described column tube sheet to be connected, described heat exchanger tube and described pass partition are positioned at the side of described column tube sheet, described point of journey case is positioned at the opposite side of described column tube sheet, and described heat exchanger tube, described pass partition are parallel with the length direction of described shell-side cylinder with the length direction of described point of journey case;
Being provided with internal-flange bolt assembly on described channel flange, described internal-flange bolt assembly is connected with described point of journey case, and the fastening force of described internal-flange bolt assembly can be transferred to described column tube sheet by described point of journey case, and compresses described gasket seal.
2. high pressure heat exchanger according to claim 1, it is characterised in that described internal-flange bolt assembly includes locating ring, separating and joining ring and internal-flange bolt;
Described locating ring and described separating and joining ring are fixed in the annular groove of described channel flange;
Described internal-flange bolt is connected in the annular groove of described channel flange by described locating ring and described separating and joining ring, described internal-flange bolt is connected with described point of journey case, the fastening force that described internal-flange bolt produces can be transferred to described column tube sheet by described point of journey case, and compresses described gasket seal.
3. high pressure heat exchanger according to claim 1, it is characterised in that described high pressure heat exchanger also includes: inner sleeve, pushing out ring and channel cover;
The interior side contacts of the outside of described inner sleeve and described internal-flange bolt assembly, one end of described pushing out ring and the described inner sleeve end thereof contacts away from described tube-side inlet;
Described channel cover is connected with described channel flange by outer bolt assembly, and the contact position of described channel cover and described channel flange is provided with sealing structure.
4. high pressure heat exchanger according to claim 3, it is characterised in that described sealing structure includes the sealing plate and the ring pad that weld successively.
5. high pressure heat exchanger according to claim 3, it is characterised in that
Described channel cover is provided with the inner ring ejector pin and inner ring bolt that are sequentially connected with, described inner ring ejector pin and described support loop contacts, the fastening force that described inner ring ejector pin and described inner ring bolt produce can be transferred to described column tube sheet by described pushing out ring, described inner sleeve and described point of journey case, and compresses described gasket seal.
6. high pressure heat exchanger according to claim 3, it is characterised in that described outer bolt assembly includes kingbolt and mother nut.
7. according to the arbitrary described high pressure heat exchanger of claim 1 to 6, it is characterised in that
Described heat exchanger tube is U-shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521066047.4U CN205300319U (en) | 2015-12-18 | 2015-12-18 | High pressure heat transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521066047.4U CN205300319U (en) | 2015-12-18 | 2015-12-18 | High pressure heat transducer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839823A (en) * | 2017-03-24 | 2017-06-13 | 南京聚拓化工科技有限公司 | A kind of HP boiler water deflection bar type preheater and chemical reaction equipment |
| CN107084632A (en) * | 2017-03-30 | 2017-08-22 | 中粮粮油工业（荆州）有限公司 | A kind of Extractive crudeoil residual heat using device |
| CN108916001A (en) * | 2018-07-16 | 2018-11-30 | 蚌埠市昊源压缩机制造有限公司 | A kind of compressor heat exchanger |
| CN109668453A (en) * | 2019-02-16 | 2019-04-23 | 石维涛 | A kind of gas transmission station heat-exchanger rig |
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2015
- 2015-12-18 CN CN201521066047.4U patent/CN205300319U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839823A (en) * | 2017-03-24 | 2017-06-13 | 南京聚拓化工科技有限公司 | A kind of HP boiler water deflection bar type preheater and chemical reaction equipment |
| CN107084632A (en) * | 2017-03-30 | 2017-08-22 | 中粮粮油工业（荆州）有限公司 | A kind of Extractive crudeoil residual heat using device |
| CN108916001A (en) * | 2018-07-16 | 2018-11-30 | 蚌埠市昊源压缩机制造有限公司 | A kind of compressor heat exchanger |
| CN109668453A (en) * | 2019-02-16 | 2019-04-23 | 石维涛 | A kind of gas transmission station heat-exchanger rig |
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Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Petroleum Engineering & Construction Corp. Patentee before: China National Petroleum Corp. |
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Effective date of registration: 20190521 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNPC EAST CHINA DESIGN INSTITUTE CO.,LTD. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee before: CHINA NATIONAL PETROLEUM Corp. |