CN219869225U - Multistage tandem heat exchanger - Google Patents
Multistage tandem heat exchanger Download PDFInfo
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- CN219869225U CN219869225U CN202321071371.XU CN202321071371U CN219869225U CN 219869225 U CN219869225 U CN 219869225U CN 202321071371 U CN202321071371 U CN 202321071371U CN 219869225 U CN219869225 U CN 219869225U
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- 239000002994 raw material Substances 0.000 claims abstract description 164
- 239000007789 gas Substances 0.000 claims abstract description 133
- 239000006200 vaporizer Substances 0.000 claims abstract description 58
- 238000009826 distribution Methods 0.000 claims abstract description 36
- 239000012495 reaction gas Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 59
- 238000009434 installation Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005514 two-phase flow Effects 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 4
- 238000009827 uniform distribution Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 210000002445 nipple Anatomy 0.000 description 13
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model discloses a multistage series heat exchanger, which relates to the technical field of heat exchangers and comprises a superheater, a steam generator, a raw material gas heater and a raw material vaporizer, wherein the superheater is arranged on the bottom of the superheater; the upper end of the shell side of the superheater is provided with a high-temperature gas inlet connecting pipe, and an anti-collision distribution plate is arranged in the high-temperature gas inlet connecting pipe and positioned on the upper side of the superheater inlet tube plate; the shell side of the superheater is internally provided with a superheater heat exchange tube, a superheater inlet tube plate and a superheater outlet tube plate, and the upper end of the superheater heat exchange tube is hermetically arranged with the superheater inlet tube plate; according to the utility model, heat of the high-temperature reaction gas is recycled in a grading way by adopting heat exchange between a plurality of cold sources and heat sources, so that the high-efficiency recycling of the heat sources is realized, and the energy-saving effect of the device is improved; the thermal shock of high-temperature gas to the tube plate and the heat exchange tube is effectively reduced, the uniform distribution of high-temperature gas medium is improved, and the heat exchange effect is good; the influence on the reliability of the heat exchanger under the medium condition of the two-phase flow is reduced, and the overall reliability of the equipment is improved.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a multistage series heat exchanger.
Background
The existing multistage series heat exchanger equipment adopts a triple heat exchanger, has poor uniformity of materials in a tube and shell side, has obvious vibration of a heat exchange tube bundle, causes expansion or expansion of cracks, microcracks and other defects at the joint of the heat exchange tube and a tube plate due to fatigue, adopts a two-phase medium as an inlet medium of the heat exchanger, has serious erosion corrosion on the heat exchange tube at the inlet of the heat exchanger, and has serious erosion corrosion caused by the two-phase flow in a local area in the heat exchanger; the pipe head bears the scouring corrosion of high-temperature reaction gas, and the failure risk is high. The design of the thermal expansion system is mostly carried out by arranging expansion joints on the shell side, and the large expansion joints are difficult to design and manufacture and have high cost; light pipe is used for heat exchange, the heat transfer efficiency is low, the equipment size is large, the weight is large, and the primary investment is high.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a multistage series heat exchanger.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the multistage serial heat exchanger comprises a superheater, a steam generator, a raw material gas heater and a raw material vaporizer;
the upper end of the shell side of the superheater is provided with a high-temperature gas inlet connecting pipe, and an anti-collision distribution plate is arranged in the high-temperature gas inlet connecting pipe and positioned on the upper side of the superheater inlet tube plate;
the shell side of the superheater is internally provided with a superheater heat exchange tube, a superheater inlet tube plate and a superheater outlet tube plate, the upper end of the superheater heat exchange tube is in sealing installation with the superheater inlet tube plate, the lower end of the superheater heat exchange tube is in sealing installation with the superheater outlet tube plate, the superheater inlet tube plate and the superheater outlet tube plate are respectively in sealing installation with the inner wall of the shell side of the superheater, the upper side of the shell side of the superheater is provided with a raw gas outlet connecting tube, the lower side of the shell side of the superheater is provided with a first connecting tube through the raw gas inlet connecting tube, the lower end of the first connecting tube is connected with a raw gas heater through the raw gas outlet connecting tube, the lower end of the shell side of the superheater is provided with a diode box, and the lower end of the diode box is installed with a steam generator;
the steam generator is characterized in that a steam generator heat exchange tube, a steam generator inlet tube plate and a steam generator outlet tube plate are arranged in a shell side of the steam generator, the upper end of the steam generator heat exchange tube is in sealing installation with the steam generator inlet tube plate, the lower end of the steam generator heat exchange tube is in sealing installation with the steam generator outlet tube plate, a saturated water inlet connecting tube is arranged on one side of the shell side of the steam generator, a medium-pressure steam outlet connecting tube is arranged on the other side of the shell side of the steam generator, the lower end of the shell side of the steam generator is installed with a three-stage tube box, and the lower end of the three-stage tube box is installed with the upper end of the shell side of the raw material gas heater;
the shell side of the raw material gas heater is internally provided with a raw material gas heater heat exchange tube, a raw material gas heater inlet tube plate and a raw material gas heater outlet tube plate, the upper end of the raw material gas heater heat exchange tube is in sealing installation with the raw material gas heater inlet tube plate, the lower end of the raw material gas heater is in sealing installation with the raw material gas heater outlet tube plate, the lower side of the shell side of the raw material gas heater is installed with a second connecting tube through a raw material gas inlet connecting tube, the lower end of the second connecting tube is connected with a gas-liquid separator, the lower side of the shell side of the raw material gas heater is connected with a four-stage tube box, and the lower end of the four-stage tube box is connected with the shell side of a raw material vaporizer;
the shell side of the raw material vaporizer is internally provided with a raw material vaporizer heat exchange tube, a raw material vaporizer inlet tube plate and a raw material vaporizer outlet tube plate, the upper end of the raw material vaporizer heat exchange tube is in sealing installation with the raw material vaporizer inlet tube plate, the lower end of the raw material vaporizer heat exchange tube is in sealing installation with the raw material vaporizer outlet tube plate, the shell side of the raw material vaporizer is connected with a gas-liquid separator through a raw material outlet connecting tube, the gas-liquid separator is connected with the shell side of the raw material vaporizer through a descending tube and a reflux liquid connecting tube, the lower side of the shell side of the raw material vaporizer is connected with a raw material mixer through a third connecting tube, the raw material mixer is respectively connected with a liquid raw material inlet connecting tube and a gas raw material inlet connecting tube, the lower side of the raw material vaporizer is connected with the upper end of a five-stage tube box, a skirt is installed on the outer side of the five-stage tube box, and the lower end of the five-stage tube box is connected with a reaction gas outlet connecting tube.
Further, the anti-impact distribution plate comprises a hemispherical plate fixedly erected inside the high-temperature gas inlet connecting pipe through a fixing frame, the circle center of the hemispherical plate is downward, and the hemispherical plate is penetrated and provided with a plurality of micropores.
Further, the raw materials blender includes the jar body, and the bottom and the gas raw materials entry of jar body take over to be connected, and the gas distribution board of taking over to be connected with the gas raw materials entry is installed to the interior bottom wall of jar body, and gas orifice has evenly been seted up to the upper surface of gas distribution board, and the side of jar body is taken over to be connected with the liquid raw materials entry, and the internal level of jar is provided with the liquid distribution pipe of taking over to be connected with the liquid raw materials entry, and liquid distribution pipe corresponds from top to bottom with the gas distribution board, and liquid orifice has evenly been seted up to the lower surface of liquid distribution pipe.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, by adopting a plurality of cold sources and heat sources for matching heat exchange, the heat of the high-temperature reaction gas can be recovered in a grading manner, so that the heat sources can be recycled efficiently, and the energy-saving effect of the device is improved.
2. Through being provided with the thermal protection distributor in high temperature gas entry pipe incasement, evenly set up the micropore on the hemisphere template of thermal protection distributor, can effectively reduce the thermal shock of high temperature gas to tube sheet and heat exchange tube, improve the equipartition nature of high temperature gas medium, heat transfer is effectual.
3. The raw material vaporizer inlet is provided with a raw material mixer, a gas distribution plate, a liquid distribution pipe, a gas raw material medium and a liquid raw material medium are arranged in the raw material mixer, and can be fully mixed in the raw material mixer to form a mixed raw material medium, so that the subsequent heat exchange effect can be improved.
4. The raw material vaporizer is connected with the gas-liquid separator, the bottom of the gas-liquid separator is provided with a down pipe which is connected with a reflux liquid connecting pipe, and the top of the gas-liquid separator is provided with a second connecting pipe which is connected with a raw material gas inlet connecting pipe, so that the gas-liquid separation of the medium at the outlet of the raw material vaporizer can be realized, the cold medium entering the raw material gas heater is ensured to be a gas-phase medium, the influence on the reliability of the heat exchanger under the condition of two-phase flow medium is reduced, and the integral reliability of the equipment is improved.
5. The tube bundle of the raw material liquid vaporizer is supported by a square grid, the heat exchange tube is a high-efficiency heat exchange tube condensed in a boiling tube outside the tube, the vibration of the heat exchanger under the condition of two-phase flow medium can be reduced, the heat exchange effect is improved, the structure is compact, the reliability is high, and the equipment cost is low.
In summary, the heat of the high-temperature reaction gas is recycled in a grading way by adopting heat exchange between a plurality of cold sources and heat sources, so that the high-efficiency recycling of the heat sources is realized, and the energy-saving effect of the device is improved; the thermal shock of high-temperature gas to the tube plate and the heat exchange tube is effectively reduced, the uniform distribution of high-temperature gas medium is improved, and the heat exchange effect is good; the influence on the reliability of the heat exchanger under the medium condition of the two-phase flow is reduced, and the overall reliability of the equipment is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic illustration of the installation of the impingement distribution at the high temperature gas inlet header and superheater inlet tube sheet;
FIG. 3 is a top view of a shock resistant distribution plate;
fig. 4 is a schematic diagram of the structure of the raw material mixer.
In the figure: a high temperature gas inlet nipple, 2 impingement distributor plate, 3 superheater inlet tube sheet, 4 feed gas outlet nipple, 5 superheater, 6 superheater outlet tube sheet, 7 feed gas inlet nipple, 8 steam generator inlet tube sheet, 9 steam generator, 10 first connector tube, 11 medium pressure steam outlet nipple, 12 steam generator outlet tube sheet, 13 feed gas heater inlet tube sheet, 14 feed gas outlet nipple, 15 feed gas heater, 16 feed gas heater outlet tube sheet, 17 feed gas inlet nipple, 18 feed vaporizer, 19 second connector tube, 20 feed gas outlet nipple, 21 gas-liquid separator, 22 downcomer, 23 reflux liquid nipple, 24 feed gas inlet nipple, 25 third connector tube, 26 feed mixer, 27 liquid feed inlet nipple, 28 gas feed inlet nipple, 29 reactant gas outlet nipple, 30 diode box, 31 saturated water inlet nipple, 32 tertiary tube box, 33 quaternary tube box, 34, feed vaporizer outlet tube sheet, 35 skirt, 36 five-stage tube box, 37, feed vaporizer inlet tube sheet, 38 gas distributor plate, 39 liquid distributor plate;
101 reaction gas inlet medium, 102 high-temperature outlet medium, 103 gas raw material medium, 104 liquid raw material medium, 105 mixed raw material medium, 106 boiler feed water, 107 steam, 108 raw material gas outlet;
201 hemispherical plate, 202 fixing frame, 203 micropore.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model;
referring to fig. 1-4, a multistage tandem heat exchanger comprises a superheater 5, a steam generator 9, a raw material gas heater 15 and a raw material vaporizer 18;
the upper end of the shell side of the superheater 5 is provided with a high-temperature gas inlet connecting pipe 1, and an anti-collision distribution plate 2 is arranged in the high-temperature gas inlet connecting pipe 1 and positioned on the upper side of a superheater inlet tube plate 3;
the shell side of the superheater 5 is internally provided with a superheater heat exchange tube, a superheater inlet tube plate 3 and a superheater outlet tube plate 6, the upper end of the superheater heat exchange tube is in sealing installation with the superheater inlet tube plate 3, the lower end of the superheater heat exchange tube is in sealing installation with the superheater outlet tube plate 6, the superheater inlet tube plate 3 and the superheater outlet tube plate 6 are respectively in sealing installation with the inner wall of the shell side of the superheater 5, the upper side of the shell side of the superheater 5 is provided with a raw gas outlet connecting tube 4, the lower side of the shell side of the superheater 5 is provided with a first connecting tube 10 through a raw gas inlet connecting tube 7, the lower end of the first connecting tube 10 is connected with a raw gas heater 15 through a raw gas outlet connecting tube 14, the lower end of the shell side of the superheater 5 is provided with a diode box 30, and the lower end of the diode box 30 is installed with a steam generator 9;
the shell side of the steam generator 9 is internally provided with a steam generator heat exchange tube, a steam generator inlet tube plate 8 and a steam generator outlet tube plate 12, the upper end of the steam generator heat exchange tube is in sealing installation with the steam generator inlet tube plate 8, the lower end of the steam generator heat exchange tube is in sealing installation with the steam generator outlet tube plate 12, one side of the shell side of the steam generator 9 is provided with a saturated water inlet connecting tube 31, the other side is provided with a medium-pressure steam outlet connecting tube 11, the lower end of the shell side of the steam generator 9 is installed with a tertiary tube box 32, and the lower end of the tertiary tube box 32 is installed with the upper end of the shell side of the raw material gas heater 15;
the shell side of the raw material gas heater 15 is internally provided with a raw material gas heater heat exchange tube, a raw material gas heater inlet tube plate 13 and a raw material gas heater outlet tube plate 16, the upper end of the raw material gas heater heat exchange tube is in sealing installation with the raw material gas heater inlet tube plate 13, the lower end of the raw material gas heater is in sealing installation with the raw material gas heater outlet tube plate 16, the lower side of the shell side of the raw material gas heater 15 is installed with a second connecting tube 19 through a raw material gas inlet connecting tube 17, the lower end of the second connecting tube 19 is connected with a gas-liquid separator 21, the lower side of the shell side of the raw material gas heater 15 is connected with a four-stage tube box 33, and the lower end of the four-stage tube box 33 is connected with the shell side of a raw material vaporizer 18;
the shell side of the raw material vaporizer 18 is internally provided with a raw material vaporizer heat exchange tube, a raw material vaporizer inlet tube plate 37 and a raw material vaporizer outlet tube plate 34, the upper end of the raw material vaporizer heat exchange tube is in sealing installation with the raw material vaporizer inlet tube plate 37, the lower end of the raw material vaporizer heat exchange tube is in sealing installation with the raw material vaporizer outlet tube plate 34, the shell side of the raw material vaporizer 18 is connected with the gas-liquid separator 21 through a raw material outlet connecting tube 20, the gas-liquid separator 21 is connected with the shell side of the raw material vaporizer 18 through a descending tube 22 and a reflux liquid connecting tube 23, the shell side of the raw material vaporizer 18 is connected with a raw material mixer 26 through a third connecting tube 25, the raw material mixer 26 is respectively connected with a liquid raw material inlet connecting tube 27 and a gas raw material inlet connecting tube 28, the shell side of the raw material vaporizer 18 is connected with the upper end of a five-stage tube box 36, a skirt 35 is installed on the outer side of the five-stage tube box 36, and the lower end of the five-stage tube box 36 is connected with a reaction gas outlet connecting tube.
The anti-impact distribution plate 2 comprises a hemispherical plate 201 fixedly arranged in the high-temperature gas inlet connecting pipe 1 through a fixing frame 202, the circle center of the hemispherical plate 201 is downward, and a plurality of micropores 203 are formed in the hemispherical plate 201 in a penetrating manner.
The raw material mixer 26 comprises a tank body, the bottom of the tank body is connected with a gas raw material inlet connecting pipe 28, a gas distribution plate 38 connected with the gas raw material inlet connecting pipe 28 is arranged on the inner bottom wall of the tank body, gas spray holes are uniformly formed in the upper surface of the gas distribution plate 38, the side surface of the tank body is connected with a liquid raw material inlet connecting pipe 27, a liquid distribution pipe 39 connected with the liquid raw material inlet connecting pipe 27 is horizontally arranged in the tank body, the liquid distribution pipe 39 corresponds to the gas distribution plate 38 up and down, and liquid spray holes are uniformly formed in the lower surface of the liquid distribution pipe 39.
The whole equipment is of a four-stage waste heat recovery integrated structure, has a compact whole structure, and can reduce the cost of auxiliary facilities of the equipment.
The heat exchange process of the utility model is approximately as follows:
the high-temperature reaction gas inlet medium 101 sequentially passes through the superheater 5, the steam generator 9, the raw material gas heater 15 and the heat exchange tubes in the raw material vaporizer 18 from the high-temperature gas inlet connecting tube 1, is cooled, is discharged from the reaction gas outlet connecting tube 29, and sequentially passes through the raw material vaporizer 18, the gas-liquid separator 21, the raw material gas heater 15 and the superheater 5 after being mixed with the gas raw material medium 103 by the raw material mixer 26, exchanges heat with the reaction gas inlet medium 101, and finally discharges raw material gas from the raw material gas outlet connecting tube 4 and the raw material gas outlet 108, and discharges the high-temperature outlet medium 102 from the reaction gas outlet connecting tube 29; boiler feed water 106 enters the shell side of steam generator 9 through saturated water inlet connection 31, exchanges heat with reactant gas inlet medium 101 flowing through the steam generator heat exchange tubes, and finally discharges steam 107 from intermediate pressure steam outlet connection 11, thus completing the heat exchange.
The heat of the high-temperature reaction gas can be recycled in a grading way by adopting various cold sources and heat sources for matching heat exchange, so that the high-efficiency recycling of the heat sources is realized, and the energy-saving effect of the device is improved.
The steam generator 9, the raw material gas heater 15 and the raw material liquid vaporizer 18 of the multistage series heat exchanger are two in inlet connection pipes, 180-degree symmetrical arrangement is adopted, the first connection pipe 10, the second connection pipe 19 and the third connection pipe 25 are symmetrically arranged by the central axis of the equipment, the uniform distribution of shell side media under the condition of large flow can be reduced, and the whole heat exchange performance of the equipment is good.
The high-temperature gas inlet pipe box 1 of the multistage series heat exchanger is internally provided with the heat protection distributor 2, the heat protection distributor 3 is an arc-shaped distribution plate, the arc diameter is the same as the inlet connecting pipe in size, the distribution plate is provided with distribution holes which are arranged in a central symmetry manner, the heat impact of high-temperature gas to a pipe plate and a pipe head can be effectively reduced, the uniform distribution of high-temperature gas media is improved, and the heat exchange effect is good.
The inlet of the raw material vaporizer 18 is provided with a raw material mixer 26, a gas distribution plate 38 and a liquid distribution pipe 39 are arranged in the raw material mixer 26, a liquid level meter port is arranged at the same time, a gas raw material medium 103 is sprayed into the raw material mixer 26 through the gas raw material inlet connecting pipe 28 and the gas distribution plate 38, a liquid raw material medium 104 is sprayed into the raw material mixer 26 through the liquid raw material inlet connecting pipe 27 and the liquid distribution pipe 39, the gas raw material medium 103 and the liquid raw material medium 104 are mixed in the raw material mixer 26 to form a mixed raw material medium 105, and the mixed raw material medium is conveyed into the shell side of the raw material vaporizer 18 from a third connecting pipe 25 to exchange heat with a high-temperature gas medium flowing through a heat exchange pipe of the raw material vaporizer,
by sufficiently mixing the gas raw material medium 103 and the liquid raw material medium 104, the heat exchange effect can be improved.
The mixed raw material medium 105 then enters the gas-liquid separator 21 from the raw material outlet connecting pipe 20 to carry out gas-liquid separation, so that the cold medium entering the raw material gas heater 15 is guaranteed to be a gas-phase medium, the influence on the reliability of the heat exchanger under the condition of two-phase flow medium is reduced, and the overall reliability of the equipment is improved. The separated gas enters the raw material gas heater 15 through the second connecting pipe 19, and the separated liquid flows back into the raw material vaporizer 18 through the down pipe 22 and the reflux liquid connecting pipe 23.
The heat exchange tube of the raw material vaporizer 18 is supported by a square grid, and the heat exchange tube adopts a high-efficiency heat exchange tube condensed in a boiling tube outside the tube, so that the vibration of the heat exchanger under the condition of two-phase flow medium can be reduced, the heat exchange effect is improved, the equipment structure is compact, the reliability is high, and the equipment cost is low.
Claims (3)
1. A multistage tandem heat exchanger, which comprises a superheater (5) and is characterized by also comprising a steam generator (9), a raw material gas heater (15) and a raw material vaporizer (18);
the upper end of the shell side of the superheater (5) is provided with a high-temperature gas inlet connecting pipe (1), and an anti-impact distribution plate (2) is arranged in the high-temperature gas inlet connecting pipe (1) and positioned on the upper side of the superheater inlet tube plate (3);
the shell side of the superheater (5) is internally provided with a superheater heat exchange tube, a superheater inlet tube plate (3) and a superheater outlet tube plate (6), the upper end of the superheater heat exchange tube is in sealing installation with the superheater inlet tube plate (3), the lower end of the superheater heat exchange tube is in sealing installation with the superheater outlet tube plate (6), the superheater inlet tube plate (3) and the superheater outlet tube plate (6) are respectively in sealing installation with the inner wall of the shell side of the superheater (5), the upper side of the shell side of the superheater (5) is provided with a raw gas outlet connecting tube (4), the lower side of the shell side of the superheater (5) is provided with a first connecting tube (10) through a raw gas inlet connecting tube (7), the lower end of the first connecting tube (10) is connected with a raw gas heater (15) through a raw gas outlet connecting tube (14), the lower end of the shell side of the superheater (5) is provided with a diode box (30), and the lower end of the diode box (30) is installed with a steam generator (9);
the shell side of the steam generator (9) is internally provided with a steam generator heat exchange tube, a steam generator inlet tube plate (8) and a steam generator outlet tube plate (12), the upper end of the steam generator heat exchange tube is in sealing installation with the steam generator inlet tube plate (8), the lower end of the steam generator heat exchange tube is in sealing installation with the steam generator outlet tube plate (12), one side of the shell side of the steam generator (9) is provided with a saturated water inlet connecting tube (31), the other side of the shell side of the steam generator is provided with a medium-pressure steam outlet connecting tube (11), the lower end of the shell side of the steam generator (9) is installed with a tertiary tube box (32), and the lower end of the tertiary tube box (32) is installed with the upper end of the shell side of the raw gas heater (15);
the shell side of the raw material gas heater (15) is internally provided with a raw material gas heater heat exchange tube, a raw material gas heater inlet tube plate (13) and a raw material gas heater outlet tube plate (16), the upper end of the raw material gas heater heat exchange tube is in sealing installation with the raw material gas heater inlet tube plate (13), the lower end of the raw material gas heater is in sealing installation with the raw material gas heater outlet tube plate (16), the lower side of the shell side of the raw material gas heater (15) is installed with a second connecting tube (19) through a raw material gas inlet connecting tube (17), the lower end of the second connecting tube (19) is connected with a gas-liquid separator (21), the lower side of the shell side of the raw material gas heater (15) is connected with a four-stage tube box (33), and the lower end of the four-stage tube box (33) is connected with the shell side of a raw material vaporizer (18);
the shell side of the raw material vaporizer (18) is internally provided with a raw material vaporizer heat exchange tube, a raw material vaporizer inlet tube plate (37) and a raw material vaporizer outlet tube plate (34), the upper end of the raw material vaporizer heat exchange tube is in sealing installation with the raw material vaporizer inlet tube plate (37), the lower end of the raw material vaporizer heat exchange tube is in sealing installation with the raw material vaporizer outlet tube plate (34), the shell side of the raw material vaporizer (18) is connected with the gas-liquid separator (21) through a raw material outlet connecting tube (20), the gas-liquid separator (21) is connected with the shell side of the raw material vaporizer (18) through a descending tube (22) and a reflux liquid connecting tube (23), the shell side of the raw material vaporizer (18) is connected with the raw material mixer (26) through a third connecting tube (25), the raw material mixer (26) is respectively connected with a liquid raw material inlet connecting tube (27) and a gas raw material inlet connecting tube (28), the shell side of the raw material vaporizer (18) is connected with the upper end of a five-stage tube box (36), a skirt (35) is installed on the outer side of the five-stage tube box (36), and the lower end of the five-stage tube box (36) is connected with a reaction gas outlet connecting tube.
2. The multistage tandem heat exchanger according to claim 1, wherein the anti-impact distribution plate (2) comprises a hemispherical plate (201) fixedly arranged inside the high-temperature gas inlet connecting pipe (1) through a fixing frame (202), the circle center of the hemispherical plate (201) is downward, and a plurality of micropores (203) are formed in the hemispherical plate (201) in a penetrating manner.
3. The multistage tandem heat exchanger according to claim 1, wherein the raw material mixer (26) comprises a tank body, the bottom of the tank body is connected with a gas raw material inlet connecting pipe (28), a gas distribution plate (38) connected with the gas raw material inlet connecting pipe (28) is arranged on the inner bottom wall of the tank body, gas spray holes are uniformly formed in the upper surface of the gas distribution plate (38), the side surface of the tank body is connected with a liquid raw material inlet connecting pipe (27), a liquid distribution pipe (39) connected with the liquid raw material inlet connecting pipe (27) is horizontally arranged in the tank body, the liquid distribution pipe (39) corresponds to the gas distribution plate (38) up and down, and liquid spray holes are uniformly formed in the lower surface of the liquid distribution pipe (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321071371.XU CN219869225U (en) | 2023-05-06 | 2023-05-06 | Multistage tandem heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321071371.XU CN219869225U (en) | 2023-05-06 | 2023-05-06 | Multistage tandem heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN219869225U true CN219869225U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321071371.XU Active CN219869225U (en) | 2023-05-06 | 2023-05-06 | Multistage tandem heat exchanger |
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| CN (1) | CN219869225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481348A (en) * | 2023-05-06 | 2023-07-25 | 甘肃蓝科石化高新装备股份有限公司 | A multi-stage series heat exchanger |
-
2023
- 2023-05-06 CN CN202321071371.XU patent/CN219869225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481348A (en) * | 2023-05-06 | 2023-07-25 | 甘肃蓝科石化高新装备股份有限公司 | A multi-stage series heat exchanger |
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