CN220670244U - Heat exchanger for esterification condensation - Google Patents
Heat exchanger for esterification condensation Download PDFInfo
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- CN220670244U CN220670244U CN202322384046.5U CN202322384046U CN220670244U CN 220670244 U CN220670244 U CN 220670244U CN 202322384046 U CN202322384046 U CN 202322384046U CN 220670244 U CN220670244 U CN 220670244U
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- cooling water
- side wall
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- 238000009833 condensation Methods 0.000 title claims abstract description 42
- 230000005494 condensation Effects 0.000 title claims abstract description 40
- 238000005886 esterification reaction Methods 0.000 title claims abstract description 21
- 230000032050 esterification Effects 0.000 title claims abstract description 19
- 239000000498 cooling water Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 53
- 238000009826 distribution Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 abstract description 47
- 230000007547 defect Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application provides a heat exchanger for esterification and condensation, which comprises a shell, wherein the shell is divided into a first cavity, a second cavity, a third cavity and a fourth cavity by a first baffle, a second baffle and a third baffle from bottom to top in sequence; a heat exchange tube is arranged in the shell, and passes through the first baffle plate, the second baffle plate and the third baffle plate to communicate the first cavity with the fourth cavity; a hollow window is arranged on one side wall of the second cavity, and a fan is arranged in the hollow window; the side wall opposite to the hollow window is provided with an extraction opening; the lower part of the side wall of the third cavity is provided with a cooling water inlet, and the upper part of the side wall of the third cavity is provided with a cooling water outlet; the side wall of the third cavity is provided with a drainage tube, one end of the drainage tube is communicated with the third cavity, and the other end of the drainage tube penetrates through the second partition plate to extend into the second cavity to be connected with the spraying layer. The heat exchanger of the application is used through the cooperation of the equipment, and the defect of water resource waste caused by large cooling water consumption when the traditional tubular heat exchanger condenses ester steam is overcome.
Description
Technical Field
The application relates to the technical field of condensation heat exchange, in particular to a heat exchanger for esterification and condensation.
Background
The ester is a compound formed by dehydration condensation of acid and alcohol under the catalysis of a catalyst, and in chemical production, the ester is a quite important chemical product, and can be used as a solvent or raw materials for production of various medicines and pesticides.
Lower esters, which are generally liquid at ordinary temperatures, often require heating during the synthesis of the esters, and after the synthesis, they are separated from the reaction solution by distillation, so that it is particularly necessary to re-condense the reacted ester vapors. When condensing ester vapor, the multipurpose heat exchanger is used as equipment for condensing ester vapor, and the traditional heat exchanger is mostly a tube type heat exchanger, but the heat exchanger can realize condensation of ester vapor, but the condensation effect is poor, so that in order to achieve a better condensation effect, large-flow cooling water is often adopted for condensation in actual operation, and the consumption of the cooling water is overlarge, so that water resources are wasted.
Disclosure of Invention
The application provides a heat exchanger for esterification and condensation for solve current heat exchanger condensation effect poor and lead to the too big quantity of cooling water, the problem of extravagant water resource.
The application provides a heat exchanger for esterification and condensation, which comprises a shell, wherein the shell is divided into a first cavity, a second cavity, a third cavity and a fourth cavity from bottom to top sequentially through a first baffle, a second baffle and a third baffle;
a heat exchange tube is arranged in the shell, and passes through the first baffle plate, the second baffle plate and the third baffle plate to communicate the first cavity with the fourth cavity;
the side wall of the first cavity is provided with an air inlet pipe, and the bottom of the first cavity is provided with a discharge port;
a hollow window is arranged on one side wall of the second cavity, and a fan is arranged in the hollow window; the side wall opposite to the hollow window is provided with an extraction opening; the bottom of the second cavity is provided with a liquid discharge pipe;
the lower part of the side wall of the third cavity is provided with a cooling water inlet, and the upper part of the side wall of the third cavity is provided with a cooling water outlet; a drainage tube is arranged on the side wall of the third cavity at the same height as the cooling water outlet, one end of the drainage tube is communicated with the third cavity, and the other end of the drainage tube penetrates through the second partition plate to extend into the second cavity to be connected with the spraying layer;
an exhaust pipe is arranged at the top of the fourth cavity.
Optionally, the heat exchange tube is provided with many, and the heat exchange tube includes heat exchange straight tube and heat exchange spiral pipe, and the heat exchange spiral pipe coils in heat exchange straight tube periphery.
Optionally, the spraying layer is arranged at the inner top of the second cavity and comprises an annular water distribution pipe and a spraying head communicated with the lower side surface of the water distribution pipe;
the water distribution pipe is sleeved on the periphery of the heat exchange pipe;
the spray head comprises a horizontal spray head and an inclined spray head, and the spray direction of the inclined spray head is inclined downwards and inwards; the spraying wind direction of the horizontal spray head is horizontal centripetal spraying; the horizontal spray heads and the inclined spray heads are arranged at intervals.
Optionally, a gas distributor is disposed in the first cavity, and the gas distributor is disposed between the first partition and the air inlet pipe.
Optionally, a protection net is further arranged on the hollow window.
Optionally, the suction opening is connected with a suction pump.
Optionally, the exhaust pipe is connected to a gas treatment device.
The heat exchanger that provides in this application sprays the heat exchange tube in the second cavity through the spraying layer that sets up the cooling water that overflows in the drainage tube with the third cavity shell side in introducing the second cavity to set up fan and extraction opening respectively in the opposite side of second cavity simultaneously, accelerate the evaporation of heat exchange tube surface cooling water through the air supply of fan and strengthen the heat transfer, and in time pass through the extraction opening with the steam that the cooling water evaporation produced and discharge. The heat exchanger of the application condenses the ester vapor through the cooperation of the equipment and the structure. The defect of water resource waste caused by large cooling water consumption when ester steam is condensed is overcome, and the traditional tubular heat exchanger is poor in condensation effect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an esterification-condensation heat exchanger according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an internal structure of a heat exchanger for esterification and condensation according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a heat exchange tube according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a spray layer according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a heat exchanger for esterification and condensation according to another embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a heat exchanger for esterification and condensation according to another embodiment of the present disclosure;
FIG. 7 is a schematic view of a heat exchanger for esterification and condensation according to still another embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an esterification-condensation heat exchanger according to an embodiment of the present disclosure.
Reference numerals illustrate:
1. a housing; 2. an air extracting pump; 3. a gas treatment device; 10. a support leg; 11. a heat exchange tube; 12. a hollow window; 13. a fan; 14. a drainage tube; 15. spraying a layer; 16. a gas distributor; 21. a protective net; 100. a first separator; 101. an air inlet pipe; 102. a discharge port; 103. an extraction opening; 104. a liquid discharge pipe; 105. a cooling water inlet; 106. a cooling water outlet; 107. an exhaust pipe; 200. a second separator; 300. a third separator; 1101. a heat exchange straight pipe; 1102. a heat exchange spiral tube; 1501. a water distribution pipe; 1502. a spray header; 15021. a horizontal spray head; 15022. and (5) an oblique spray head.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, are also within the scope of the present application based on the embodiments herein.
As shown in fig. 1 and 2, the present application provides a heat exchanger for esterification and condensation, comprising a casing 1, wherein the casing 1 is divided into a first cavity, a second cavity, a third cavity and a fourth cavity from bottom to top by a first partition plate 100, a second partition plate 200 and a third partition plate 300 sequentially from bottom to top;
a heat exchange tube 11 is arranged in the shell 1, and the heat exchange tube 11 passes through the first partition plate 100, the second partition plate 200 and the third partition plate 300 to communicate the first cavity with the fourth cavity;
the side wall of the first cavity is provided with an air inlet pipe 101, and the bottom of the first cavity is provided with a discharge port 102;
a hollow window 12 is arranged on one side wall of the second cavity, and a fan 13 is arranged in the hollow window 12; the opposite side walls of the hollow window 12 are provided with air extraction openings 103; the bottom of the second cavity is provided with a liquid discharge pipe 104;
the lower part of the side wall of the third cavity is provided with a cooling water inlet 105, and the upper part is provided with a cooling water outlet 106; a drainage tube 14 is arranged on the side wall of the third cavity at the same height as the cooling water outlet 106, one end of the drainage tube 14 is communicated with the third cavity, and the other end of the drainage tube passes through the second partition board 200 to extend into the second cavity to be connected with the spray layer 15;
the top of the fourth cavity is provided with an exhaust pipe 107.
Wherein, a plurality of supporting legs 10 are welded on the periphery of the bottom of the shell 1 so as to lift the discharge opening 102, thereby facilitating the transfer of the liquid ester to the storage container through the discharge opening 102.
In the application, the third cavity corresponds to a tubular heat exchanger structure, the heat exchange tube 11 is provided with a tube side, the shell outside the heat exchange tube 11 is provided with a shell side, the heat exchange tube 11 is provided with ester steam, and the heat exchange medium in the shell side is circulating cooling water.
In this application, the fan 13 is connected to a corresponding power output device, such as a motor, and the fan 13 is driven to rotate by the motor.
In this application, when using, let in the cooling water through cooling water inlet 105 to the shell side of third cavity, heat transfer pipe 11 heat transfer, the cooling water after the heat transfer then introduces through drainage tube 14 and sprays layer 15 in, sprays the cooling water to the heat transfer pipe 11 that is located the second cavity. After the cooling water sprayed on the heat exchange tube 11 of the second cavity exchanges heat with the high-temperature ester steam in the cooling tube 11, part of the cooling water is evaporated into steam under the blowing action of the fan 13, and the steam is discharged from the air extraction opening 103. The condensing effect is enhanced by evaporation of the moisture. Above-mentioned setting, on the one hand carries out heat transfer cooling condensation through the cooling water that sprays on the heat exchange tube directly to ester steam, and on the other hand then carries out further cooling condensation to ester steam through the evaporation heat absorption of the cooling water that sprays on the heat exchange tube, and the evaporation rate of these moisture can be accelerated in fan 13's setting, promotes heat exchange efficiency, through the cooperation of above-mentioned structure use, can strengthen the cooling effect.
When the heat exchanger is used, high-temperature ester steam from the esterification reaction kettle enters the shell 1 from the air inlet pipe 101 arranged on the side face of the first cavity, and after entering the first cavity, the ester steam enters the heat exchange pipe 11 to advance from bottom to top. Simultaneously, a motor driving the fan 13 to rotate is started, the drainage tube 14 introduces overflowed cooling water of the third cavity shell pass into the spraying layer 15, and sprays the cooling water to the heat exchange tube 11 positioned in the second cavity.
After the cooling water sprayed on the heat exchange tube 11 of the second cavity exchanges heat with the high-temperature ester steam in the cooling tube 11, part of the cooling water is evaporated into steam and discharged from the air extraction opening 103 under the blowing action of the fan 13, and is transferred to corresponding collecting equipment, and the non-evaporated cooling water falls into the bottom of the second cavity and is finally discharged to the corresponding collecting equipment through the liquid discharge tube 104. And the condensed ester in the condensation pipe 11 of the second cavity falls into the first cavity, and when the liquid level of the liquid ester in the first cavity reaches a certain height (for example, 0.3-0.5 of the height of the first cavity), the discharge port 102 is opened to transfer the liquid ester into the storage container.
Part of the ester which is not condensed in the condensation pipe 11 of the second cavity enters the heat exchange pipe 11 of the third cavity section, at the moment, the cooling water input from the cooling water inlet 105 at the lower part of the side wall of the third cavity condenses the rest of the ester through heat exchange between the heat exchange pipe 11 and the ester vapor, and the condensed ester falls into the first cavity for temporary storage. Part of the cooling water in the third cavity section exchanges heat with the ester vapor, and then enters the spraying layer 15 from the drainage tube 14, and the rest overflows and is discharged from the cooling water outlet 106.
In the condensation process of the ester vapor, the non-condensable gas which is not condensed by the condenser is discharged from the exhaust pipe 107 at the top of the fourth cavity to the gas treatment device, and is subjected to harmless treatment such as adsorption or incineration.
The heat exchanger that provides in this application sprays the heat exchange tube in the second cavity through the spraying layer that sets up the cooling water that overflows in the drainage tube 14 with the third cavity shell side in introducing the second cavity to set up fan 13 and extraction opening 103 respectively in the opposite side of second cavity simultaneously, accelerate the evaporation of heat exchange tube surface cooling water through the air supply of fan 13 and strengthen the heat transfer, and in time pass through extraction opening 103 discharge with the steam that the cooling water evaporation produced. The heat exchanger of the application condenses the ester vapor through the cooperation of the equipment and the structure. The defect of water resource waste caused by large cooling water consumption when ester steam is condensed is overcome, and the traditional tubular heat exchanger is poor in condensation effect.
As shown in fig. 3, optionally, a plurality of heat exchange tubes 11 are provided, the heat exchange tubes 11 include a heat exchange straight tube 1101 and a heat exchange spiral tube 1102, and the heat exchange spiral tube 1102 is coiled around the periphery of the heat exchange straight tube 1101.
In the application, the heat exchange straight pipe 1101 can reduce the steam pressure in the first cavity, so that the adverse consequences that the ester steam in the reaction kettle is difficult to be conveyed to the heat exchanger due to the overlarge air pressure in the first cavity are prevented; the heat exchange coil 1102 can increase the heat exchange area and improve the heat exchange efficiency. Meanwhile, in order to ensure the heat exchange effect, the pipe diameter of the heat exchange straight pipe 1101 is smaller than that of the heat exchange spiral pipe 1102, and the pipe diameter of the heat exchange straight pipe 1101 can be set to be 0.3-0.4 of that of the heat exchange spiral pipe 1102 in use.
As shown in fig. 4, optionally, a spray layer 15 is disposed at the inner top of the second cavity, and the spray layer 15 includes an annular water distribution pipe 1501 and a spray header 1502 communicated with the lower side surface of the water distribution pipe 1501;
the water distribution pipe 1501 is sleeved on the periphery of the heat exchange pipe 11;
the spray header 1502 comprises a horizontal spray head 15021 and an inclined spray head 15022, wherein the spray direction of the inclined spray head 15022 is inclined downwards and inwards; the spray wind direction of the horizontal spray head 15021 is horizontal centripetal spray; the horizontal nozzle 15021 and the diagonal nozzle 15022 are arranged at intervals.
In the present application, in order to ensure the heat exchange effect in use, a tube bundle composed of a plurality of heat exchange tubes 11 is disposed in the middle of the circular water distribution tube 1501. In this application, since the spray layer 15 is disposed at the inner top of the second cavity, the horizontal nozzle 15021 with the spray direction being the horizontal centripetal direction is disposed to enable the spray water to flow through the heat exchange tube 11 from top to bottom; however, at the same time, when the cooling water flows through the heat exchange tube 11 from top to bottom, the distribution of the cooling water at the lower half of the heat exchange tube 11 may be uneven, so that the inclined spray nozzle 15022 spraying obliquely downwards and inwards is arranged, so as to make up the short plate with uneven distribution of the cooling water at the lower part of the cooling tube 11 when the cooling water sprays from top to bottom, and therefore, the heat exchange efficiency can be improved by the cooperation of the horizontal spray nozzle 15021 and the inclined spray nozzle 15022. In use, the angle between the oblique nozzle 15022 and the horizontal plane is 15-75 °.
As shown in fig. 5, optionally, a gas distributor 16 is disposed in the first chamber, and the gas distributor 16 is disposed between the first partition 100 and the gas inlet pipe 101.
In this application, because the gas distribution who gets into in the first cavity is inhomogeneous, can lead to the condensation effect to the ester steam to be worsened, influences the rate of recovery of ester condensation, consequently set up gas distributor 16 can make the ester steam that gets into in the first cavity evenly rise after distributing to improve heat exchange efficiency.
As shown in fig. 6, optionally, a protective net 21 is further provided on the hollow window 12.
In the present application, the protection net 21 is provided to protect the fan 13 from foreign matters in the outside and to protect operators and reduce safety accidents.
As shown in fig. 7, the suction opening 103 is optionally connected to the suction pump 2.
In this application, set up aspiration pump 2 can be with the vapor pump of second cavity evaporation away, and aspiration pump 2 and fan 13's cooperation is used, can accelerate the evaporation rate of the cooling water that sprays into heat exchange tube 11 surface, reinforcing cooling effect. The pump 2 may be selected to be a vapor-resistant pump, such as a wet roots vacuum pump or the like. The water vapor pumped by the air pump 2 can be transferred into a corresponding collecting container for storage and condensation.
As shown in fig. 8, an exhaust pipe 107 is optionally connected to the gas treatment device 3.
In this application, since some non-condensable gases are still present in the ester vapor, these gases may not be directly discharged, or may cause environmental pollution, and thus the gas treatment device 3 is provided to treat and discharge these gases, and the gas treatment device 3 may be an activated carbon adsorption tower or an incinerator.
A heat exchanger for esterification and condensation has the following working processes:
the high-temperature ester steam from the esterification reaction kettle enters the shell 1 from the air inlet pipe 101 arranged on the side surface of the first cavity, and after entering the first cavity, the ester steam is uniformly distributed through the gas distributor 16, and then enters the heat exchange straight pipe 1101 and the heat exchange spiral pipe 1102 of the heat exchange pipe 11 to travel from bottom to top. Simultaneously, the air pump 2 and the motor driving the fan 13 to rotate are started, the drainage tube 14 introduces overflowed cooling water of the third cavity shell pass into the water distribution pipe 1501 of the spray layer 15, and then the cooling water is sprayed to the heat exchange pipe 11 positioned in the second cavity through the horizontal spray nozzle 15021 and the oblique spray nozzle 15022.
After the cooling water sprayed on the heat exchange tube 11 of the second cavity exchanges heat with the high-temperature ester steam in the cooling tube 11, part of the evaporated water vapor is pumped away by the air pump 2 under the blowing of the fan 13 and the air pumping action of the air pump 2, is transferred to corresponding collecting equipment, and the non-evaporated cooling water falls into the bottom of the second cavity and is finally discharged to the corresponding collecting equipment through the liquid discharge tube 104. And the condensed ester in the condensation pipe 11 of the second cavity falls into the first cavity, and when the liquid level of the liquid ester in the first cavity reaches a certain height (for example, 0.3-0.5 of the height of the first cavity), the discharge port 102 is opened to transfer the liquid ester into the storage container.
Part of the ester which is not condensed in the condensation pipe 11 of the second cavity enters the condensation pipe of the third cavity section, at the moment, the cooling water input from the cooling water inlet 105 at the lower part of the side wall of the third cavity condenses the rest of the ester through heat exchange between the heat exchange pipe 11 and the ester vapor, and the condensed ester falls into the first cavity for temporary storage. Part of the cooling water in the third cavity section exchanges heat with the ester vapor, and then enters the spraying layer 15 from the drainage tube 14, and the rest overflows and is discharged from the cooling water outlet 106.
In the condensation process of the ester vapor, the non-condensable gas which is not condensed by the condenser is discharged from the exhaust pipe 107 at the top of the fourth chamber to the gas treatment device 3, and is subjected to harmless treatment such as adsorption or incineration.
Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. The heat exchanger for esterification and condensation is characterized by comprising a shell (1), wherein the shell (1) is divided into a first cavity, a second cavity, a third cavity and a fourth cavity from bottom to top by sequentially passing through a first partition plate (100), a second partition plate (200) and a third partition plate (300) from bottom to top;
a heat exchange tube (11) is arranged in the shell (1), and the heat exchange tube (11) penetrates through the first partition board (100), the second partition board (200) and the third partition board (300) to communicate the first cavity with the fourth cavity;
the side wall of the first cavity is provided with an air inlet pipe (101), and the bottom of the first cavity is provided with a discharge port (102);
a hollow window (12) is arranged on one side wall of the second cavity, and a fan (13) is arranged in the hollow window (12); the opposite side walls of the hollow window (12) are provided with air extraction openings (103); a liquid discharge pipe (104) is arranged at the bottom of the second cavity;
the lower part of the side wall of the third cavity is provided with a cooling water inlet (105), and the upper part of the side wall of the third cavity is provided with a cooling water outlet (106); a drainage tube (14) is arranged on the side wall of the third cavity at the same height as the cooling water outlet (106), one end of the drainage tube (14) is communicated with the third cavity, and the other end of the drainage tube penetrates through the second partition plate (200) to extend into the second cavity to be connected with the spraying layer (15);
an exhaust pipe (107) is arranged at the top of the fourth cavity.
2. The heat exchanger for esterification and condensation according to claim 1, wherein the heat exchange tubes (11) are provided in plurality, the heat exchange tubes (11) comprise a heat exchange straight tube (1101) and a heat exchange spiral tube (1102), and the heat exchange spiral tube (1102) is coiled on the periphery of the heat exchange straight tube (1101).
3. The heat exchanger for esterification and condensation according to claim 1, wherein the spray layer (15) is disposed at the inner top of the second cavity, the spray layer (15) comprising an annular water distribution pipe (1501) and a spray header (1502) communicating with the lower side of the water distribution pipe (1501);
the water distribution pipe (1501) is sleeved on the periphery of the heat exchange pipe (11);
the spray header (1502) comprises a horizontal spray head (15021) and an inclined spray head (15022), wherein the spray direction of the inclined spray head (15022) is inclined downwards and inwards; the spraying wind direction of the horizontal spray head (15021) is horizontal centripetal spraying; the horizontal spray head (15021) and the oblique spray head (15022) are arranged at intervals.
4. The heat exchanger for esterification and condensation according to claim 1, wherein a gas distributor (16) is provided in the first chamber, and the gas distributor (16) is provided between the first separator (100) and the gas inlet pipe (101).
5. The heat exchanger for esterification and condensation according to claim 1, wherein a protective net (21) is further provided on the hollow window (12).
6. The heat exchanger for esterification and condensation according to claim 1, wherein the air extraction opening (103) is connected to an air extraction pump (2).
7. The heat exchanger for esterification and condensation according to claim 1, wherein the exhaust pipe (107) is connected to a gas treatment device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322384046.5U CN220670244U (en) | 2023-09-04 | 2023-09-04 | Heat exchanger for esterification condensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322384046.5U CN220670244U (en) | 2023-09-04 | 2023-09-04 | Heat exchanger for esterification condensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220670244U true CN220670244U (en) | 2024-03-26 |
Family
ID=90331589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322384046.5U Active CN220670244U (en) | 2023-09-04 | 2023-09-04 | Heat exchanger for esterification condensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220670244U (en) |
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2023
- 2023-09-04 CN CN202322384046.5U patent/CN220670244U/en active Active
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