CN212431867U - Graphite tube nest heat exchange device with tube bundles capable of floating freely - Google Patents
Graphite tube nest heat exchange device with tube bundles capable of floating freely Download PDFInfo
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- CN212431867U CN212431867U CN202021349280.4U CN202021349280U CN212431867U CN 212431867 U CN212431867 U CN 212431867U CN 202021349280 U CN202021349280 U CN 202021349280U CN 212431867 U CN212431867 U CN 212431867U
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- flange
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- heat exchange
- floating tube
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 31
- 239000010439 graphite Substances 0.000 title claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007770 graphite material Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a graphite tubulation heat exchange device with a freely floating tube bundle, which comprises a straight tube type tube body, wherein 1 floating tube plate is respectively arranged inside each of two ends of the straight tube type tube body, the outer side of each floating tube plate is provided with a seal head, a material inlet is arranged on the seal head at one end, and a material outlet is arranged on the seal head at the other end; a heat exchange tube which is hermetically communicated with the overflowing hole on the floating tube plate is arranged between the floating tube plates; the two ends of the straight cylinder body are connected with the end sockets on the corresponding sides through a cylinder body flange and an end socket flange, the cylinder body flange is connected with the end socket flange through a screw rod, the two ends of the screw rod are respectively provided with a first adjusting nut and a second adjusting nut, a first O-shaped sealing ring is arranged between the cylinder body flange and the end socket flange, and the first O-shaped sealing ring is tightly hooped on the circumferential surface of the floating tube plate. The utility model has the characteristics of the material quantity is few, equipment light in weight, low in manufacturing cost, the assembly degree of difficulty is low, the leakproofness is good, graphite spare part is difficult for impairedly, long service life, and the intensity properties is high.
Description
Technical Field
The utility model relates to a graphite tubulation heat exchanger, especially a graphite tubulation heat transfer device that tube bank can free floating.
Background
The graphite tubular heat exchanger is the main equipment in the heat exchanger of the strong corrosive medium, the market demand is very big, but the traditional graphite tubular heat exchanger also exposes some problems in the production practice because the design structure is unreasonable:
1. the structural size of the fixed tube plate and the graphite end socket is not matched with the size of the raw graphite material, the fixed tube plate and the graphite end socket are required to be manufactured by using a material with a diameter larger than a specification, the material is wasted, and the manufacturing cost is higher.
2. The perpendicularity of the fixed tube plate and the tube bundle and the parallelism of the fixed tube plate and the tube bundle and the flange on the cylinder body need to be ensured simultaneously, the manufacturing and assembling difficulty is higher, and leakage of the sealing surface happens occasionally.
3. Graphite parts are not effectively protected, the existing floating end is restricted by an external pipeline, movement is blocked, external dynamic loads such as secondary stress and the like are finally borne by a graphite heat transfer element, and the risk of equipment damage is increased.
4. The joint of the fixed tube plate and the graphite heat exchange tube bears external load superposition in the aspects of tube pass internal pressure, shell layer internal pressure, floating part weight, shell layer medium weight, tube pass medium weight, shell pass-tube pass pressure difference, pipeline vibration and the like, so that fracture or leakage often occurs, and the defects of large graphite part bearing load, poor stress condition, small design pressure, short service life, heavy equipment, high cost and the like exist.
5. Graphite material head and steel apron integrated configuration compare steel lining head, and manufacturing cost is on the high side, and the strength properties is on the low side.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but tube bank free floating's graphite tubulation heat transfer device. The utility model has the characteristics of the material quantity is few, equipment light in weight, low in manufacturing cost, the assembly degree of difficulty is low, the leakproofness is good, graphite spare part is difficult for impairedly, long service life, and the intensity properties is high.
The technical scheme of the utility model: a graphite tube array heat exchange device with a tube bundle capable of floating freely comprises a horizontally placed straight cylinder, wherein a shell side steam inlet and a shell side condensate outlet are formed in the straight cylinder; a heat exchange tube which is hermetically communicated with the overflowing hole on the floating tube plate is arranged between the floating tube plates;
the two ends of the straight cylinder body are connected with the end sockets on the corresponding sides through a cylinder body flange and an end socket flange, the cylinder body flange is connected with the end socket flange through a screw rod, the two ends of the screw rod are respectively provided with a first adjusting nut and a second adjusting nut, a first O-shaped sealing ring is arranged between the cylinder body flange and the end socket flange, and the first O-shaped sealing ring is tightly hooped on the circumferential surface of the floating tube plate.
In the graphite tube array heat exchange device with the tube bundle capable of floating freely, a flange is further arranged between the cylinder flange and the end socket flange, the first O-shaped sealing ring is arranged between the flange and the end socket flange, a second O-shaped sealing ring is arranged between the flange and the cylinder flange, and the second O-shaped sealing ring is tightly hooped on the peripheral surface of the floating tube plate; the screw rod penetrates through the pressing flange, and a third adjusting nut is arranged on the screw rod on one side, close to the end socket flange, of the pressing flange.
According to the graphite tube array heat exchange device with the tube bundle capable of floating freely, the annular limiting plate is arranged at the position, close to the floating tube plate, in the end socket.
In the graphite tube nest heat exchange device with the tube bundle capable of floating freely, the heat exchange tube is provided with the baffle plate.
The beneficial effects of the utility model
1. The utility model relates to a horizontal graphite heat exchanger, through both ends all set up embedded floating tube sheet to cancel traditional fixed tube sheet, under the same heat exchanger barrel diameter condition, because embedded floating tube sheet is less than the diameter of fixed tube sheet, and lower to the requirement of tube sheet intensity, can contract the tube sheet thickness, simultaneously, the utility model discloses a structure has reduced the quantity of flange piece; and through the reduction of the diameter and the thickness of the tube plate and the reduction of the using amount of the flange sheet, the using amounts of graphite and steel are greatly reduced, the weight of equipment is reduced, and the production cost of the heat exchanger is reduced. The utility model discloses in the heat exchanger is actually implemented, the tube sheet diameter reduces 100mm, thickness reduces 1/3, and the graphite material quantity reduces 1200kg, and flange quantity reduces 3, and steel reduces 2500kg, calculates according to the material net weight, and material saving takes 9.8 ten thousand yuan, has reduced the cost of labor of 3 flange manufacturing simultaneously.
2. The utility model discloses a pipe sheet and heat exchange tube float can be in the straight section of thick bamboo of whole packing into after the section of thick bamboo outer equipment to because both sides are the design of floating, to the straightness that hangs down of pipe sheet and tube bank and all reduce to some extent with the requirement of the depth of parallelism of flange on the barrel, the assembly degree of difficulty is low, and the leakproofness is better, has solved the sealed hidden danger of fixed pipe sheet of traditional heat exchanger and flange on the barrel.
3. The utility model discloses the heat exchange tube of heat exchanger does not receive external dynamic load with unsteady tube sheet and strikes, and graphite spare is protected in the straight cylindrical barrel of steel completely, is difficult for impairedly, and life is longer.
4. The utility model discloses except that unsteady tube sheet and heat exchange tube all can adopt steel lining material, the intensity performance is more reliable, and the cost is lower.
5. The utility model discloses a design of pressing the blue, when the heat exchange tube of damage need be overhauld, can guarantee the leakproofness between unsteady tube sheet and the straight cartridge type barrel, the easy access.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a single-sided local structure of the heat exchanger of the present invention.
Description of reference numerals: the device comprises a straight cylinder body 1, a shell side steam inlet 2, a condensate outlet 3, a floating tube plate 4, a seal head 5, a material inlet 6, a material outlet 7, a heat exchange tube 8, a cylinder flange 9, a seal head flange 10, a screw rod 11, a first adjusting nut 12, a second adjusting nut 13, a flange 14, a third adjusting nut 15, a second O-shaped sealing ring 16, a first O-shaped sealing ring 17, an annular limiting plate 18 and a baffle plate 19.
Detailed Description
The present invention will be further described with reference to the following examples, which are not intended as a limitation of the present invention.
Embodiments of the utility model
A graphite tube array heat exchange device with a tube bundle capable of floating freely is shown in attached figure 1-2 and comprises a horizontally placed straight tube type cylinder body 1, wherein the straight tube type cylinder body 1 is installed through a support arranged at the belly, a shell side steam inlet 2 and a shell side condensate outlet 3 are arranged on the straight tube type cylinder body 1, 1 floating tube plate 4 is respectively arranged inside each of two ends of the straight tube type cylinder body 1, a seal head 5 is arranged on the outer side of each floating tube plate 4, each floating tube plate 4 is connected with the seal head 5 and the inside of the straight tube type cylinder body 1 in a sliding mode, a material inlet 6 is arranged on the seal head 5 at one end, and a material outlet 7 is arranged on the seal head 5 at the other; a heat exchange tube 8 which is hermetically communicated with an overflowing hole on the floating tube plate 4 is arranged between the floating tube plates 4; during assembly, the heat exchange tube 8 and the floating tube plate 4 are assembled outside and then are integrally inserted into the straight-tube-shaped cylinder body 1;
the two ends of the straight cylinder type cylinder 1 are connected with the end sockets 5 on the corresponding sides through a cylinder flange 9 and an end socket flange 10, the cylinder flange 9 is connected with the end socket flange 10 through a screw rod 11, the two ends of the screw rod 11 are respectively provided with a first adjusting nut 12 and a second adjusting nut 13, a first O-shaped sealing ring 17 is arranged between the cylinder flange 9 and the end socket flange 10, and the first O-shaped sealing ring 17 is tightly hooped on the peripheral surface of the floating tube plate 4; in actual work, the straight cylinder type cylinder 1 and the end enclosure 5 form an external shell, the heat exchange element formed by the heat exchange tube 8 and the floating tube plate 4 can integrally float in the shell, and the O-shaped sealing ring ensures the sealing property between the inside of the straight cylinder type cylinder 1 and the inside of the end enclosure 5 in the floating process.
A flange 14 is further arranged between the cylinder flange 9 and the end socket flange 10, the first O-shaped sealing ring 17 is arranged between the flange 14 and the end socket flange 10, a second O-shaped sealing ring 16 is arranged between the flange 14 and the cylinder flange 9, and the second O-shaped sealing ring 16 is tightly hooped on the circumferential surface of the floating tube plate 4; the screw 11 penetrates through the flange 14, and a third adjusting nut 15 is arranged on the screw 11 on one side, close to the end socket flange 10, of the flange 14. During installation, the floating tube plate 4 and the heat exchange tube 8 are installed in the straight-tube-shaped cylinder body 1 according to the steps, then the second O-shaped sealing ring 16 is assembled on the floating tube plate 4, the pressing flange 14 is pressed on the second O-shaped sealing ring 16, the first adjusting nut 12 and the third adjusting nut 15 are screwed after the screw rod 11 is installed, then the end enclosure 5 is installed, and the second adjusting nut 13 is screwed; during maintenance, the end socket 5 is opened, and the flange 14 and the second O-shaped sealing ring 16 form a sealing element to ensure the sealing property in the straight cylinder type cylinder body 1.
In order to avoid the floating tube plate 4 from floating greatly, an annular limiting plate 18 is arranged in the end socket 5 at a position close to the floating tube plate 4.
The heat exchange tube 8 is provided with a baffle plate 19, so that the heat exchange effect can be improved.
The utility model discloses graphite tube nest heat exchanger successfully uses on the 750 square graphite tube phosphoric acid evaporators of the north of a lake optimization, uses to go wrong yet, has prolonged 1.5 times than traditional equipment life-span. The bottleneck that the pressure does not exceed 0.3MPa in the original design of the graphite tubular heat exchanger is broken through, the pressure of the graphite tubular heat exchanger can reach 1.2MPa, the manufacturing cost is saved, the strength requirement of the design can be met under the condition of reducing the thickness of part of parts due to the improvement of the stress state of the graphite tube bundle, and the thicknesses of the fixed tube plate and the floating tube plate are reduced.
The above, only do the utility model discloses create the embodiment of preferred, nevertheless the utility model discloses the protection scope of creation is not limited to this, and any technical personnel who is familiar with this technical field are in the utility model discloses create the technical scope of disclosure, according to the utility model discloses technical scheme and the utility model design that creates of the utility model are equivalent replacement or change, all should be covered within the protection scope of creation of the utility model.
Claims (4)
1. The utility model provides a but graphite shell and tube heat transfer device of tube bank free floating which characterized in that: the device comprises a straight cylinder type cylinder body (1) which is horizontally arranged, wherein a shell side steam inlet (2) and a shell side condensate outlet (3) are arranged on the straight cylinder type cylinder body (1), 1 floating tube plate (4) is respectively arranged inside two ends of the straight cylinder type cylinder body (1), a seal head (5) is arranged on the outer side of each floating tube plate (4), each floating tube plate (4) is connected with the seal head (5) and the inside of the straight cylinder type cylinder body (1) in a sliding manner, a material inlet (6) is arranged on the seal head (5) at one end, and a material outlet (7) is arranged on the seal head (5) at the other end; a heat exchange tube (8) which is hermetically communicated with the overflowing hole on the floating tube plate (4) is arranged between the floating tube plates (4);
the two ends of the straight cylinder type cylinder body (1) are connected with the end sockets (5) on the corresponding sides through a cylinder flange (9) and an end socket flange (10), the cylinder flange (9) and the end socket flange (10) are connected through a screw rod (11), the two ends of the screw rod (11) are respectively provided with a first adjusting nut (12) and a second adjusting nut (13), a first O-shaped sealing ring (17) is arranged between the cylinder flange (9) and the end socket flange (10), and the first O-shaped sealing ring (17) is tightly hooped on the circumferential surface of the floating tube plate (4).
2. The graphite tube bundle free-floating tube nest heat exchange device according to claim 1, characterized in that: a flange (14) is further arranged between the cylinder flange (9) and the end socket flange (10), the first O-shaped sealing ring (17) is arranged between the flange (14) and the end socket flange (10), a second O-shaped sealing ring (16) is arranged between the flange (14) and the cylinder flange (9), and the second O-shaped sealing ring (16) is tightly hooped on the peripheral surface of the floating tube plate (4); the screw rod (11) penetrates through the pressing flange (14), and a third adjusting nut (15) is arranged on the screw rod (11) on one side, close to the seal head flange (10), of the pressing flange (14).
3. The graphite tube bundle free-floating tube nest heat exchange device according to claim 1, characterized in that: and an annular limiting plate (18) is arranged at a position, close to the floating tube plate (4), in the seal head (5).
4. The graphite tube bundle free-floating tube nest heat exchange device according to claim 1, characterized in that: the heat exchange tube (8) is provided with a baffle plate (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021349280.4U CN212431867U (en) | 2020-07-10 | 2020-07-10 | Graphite tube nest heat exchange device with tube bundles capable of floating freely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021349280.4U CN212431867U (en) | 2020-07-10 | 2020-07-10 | Graphite tube nest heat exchange device with tube bundles capable of floating freely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212431867U true CN212431867U (en) | 2021-01-29 |
Family
ID=74278753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021349280.4U Active CN212431867U (en) | 2020-07-10 | 2020-07-10 | Graphite tube nest heat exchange device with tube bundles capable of floating freely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212431867U (en) |
-
2020
- 2020-07-10 CN CN202021349280.4U patent/CN212431867U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A graphite tube heat exchanger with free floating tube bundle Effective date of registration: 20220527 Granted publication date: 20210129 Pledgee: Qiannan Buyei and Miao Autonomous Prefecture Branch of Postal Savings Bank of China Ltd. Pledgor: GUIZHOU LANXIN GRAPHITE ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO.,LTD. Registration number: Y2022980006493 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210129 Pledgee: Qiannan Buyei and Miao Autonomous Prefecture Branch of Postal Savings Bank of China Ltd. Pledgor: GUIZHOU LANXIN GRAPHITE ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO.,LTD. Registration number: Y2022980006493 |