CN220750907U - Rectifying column top gas phase component waste heat utilization device - Google Patents
Rectifying column top gas phase component waste heat utilization device Download PDFInfo
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- CN220750907U CN220750907U CN202322259139.5U CN202322259139U CN220750907U CN 220750907 U CN220750907 U CN 220750907U CN 202322259139 U CN202322259139 U CN 202322259139U CN 220750907 U CN220750907 U CN 220750907U
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- heat exchange
- gas
- rectifying tower
- hot water
- heat
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- 239000007789 gas Substances 0.000 title claims abstract description 83
- 239000002918 waste heat Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000010992 reflux Methods 0.000 claims abstract description 24
- 238000000605 extraction Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000012071 phase Substances 0.000 claims 9
- 238000007599 discharging Methods 0.000 claims 1
- 239000007792 gaseous phase Substances 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000112 cooling gas Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The embodiment of the utility model provides a device for utilizing waste heat of gas phase components at the top of a rectifying tower, and relates to the technical field of rectifying towers. The device for utilizing the waste heat of the gas phase component at the top of the rectifying tower comprises a rectifying tower body and a main heat exchange component; the main heat exchange component can exchange heat with cooling water through high-temperature gas, the gas cooled to a certain temperature is partially extracted, the gas partially enters the reflux tank body, hot water is introduced into the main heat exchange component through the second liquid inlet pipe fitting and discharged through the hot water heat tracing pipe fitting for carrying out hot water heat tracing treatment, the temperature detecting part can monitor the heat of water flowing through the main heat exchange component, when the temperature of the main heat exchange component does not reach a certain degree, the self-regulating valve is controlled to send the high-temperature gas in the rectifying tower body into the auxiliary heat exchange component through the first feeding pipe fitting and the second feeding pipe fitting, so that the hot water in the auxiliary heat exchange component is subjected to heat exchange treatment again, the hot water reaches a certain temperature, and the temperature of the hot water heat tracing is controlled.
Description
Technical Field
The utility model relates to the technical field of rectifying towers, in particular to a device for utilizing waste heat of gas phase components at the top of a rectifying tower.
Background
Under normal conditions, the rectifying tower is heated under the action of the reboiler to rectify the internal materials, the gas phase is extracted from the tower top, the extracted temperature is higher, but the temperature of gas phase reflux does not need to be so high, so that the cooling is needed, the subsequent reflux operation is convenient, the heat loss is caused by the direct cooling of the temperature, and the waste heat utilization is carried out under the condition that the high-temperature cooling is needed.
The existing waste heat utilization device generally introduces high-temperature gas into a heat exchanger and performs heat exchange on circulating water in the high-temperature gas to perform heat exchange and cooling treatment on the high-temperature gas, part of the gas after heat exchange is extracted, and the other part of the gas flows back into the top of the tower for recycling again, so that heat exchange waste heat utilization is completed, and the waste heat recovery and utilization can be performed, but certain problems still exist;
for example: the cooling water can only be circularly heated, heating treatment cannot be assisted to heat tracing hot water in the working process of the rectifying tower, then a heating electric appliance component is adopted to heat the water body before the hot water tracing piece is used for introducing the heat tracing water into the rectifying tower, so that the water body reaches the heat tracing demand temperature, in the working process, the processing cost is increased, the temperature of the heat tracing hot water cannot be controlled by using a tower top heat source in an assisted manner, the efficiency of waste heat utilization is further reduced, certain defects exist, and the practicability of a waste heat utilization device is reduced;
therefore, in order to solve the above-mentioned problems, a waste heat utilization device is designed to exchange heat with the cooling water by using the high-temperature gas in the rectifying tower and assist in increasing the temperature of the heat tracing hot water, so as to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide a device for utilizing waste heat of gas phase components at the top of a rectifying tower, which can avoid the problem that the waste heat utilization device can only exchange heat for cooling water and cannot assist in heat exchange utilization for heat tracing hot water.
The utility model provides a rectifying tower top gas phase component waste heat utilization device which comprises a rectifying tower body and a main heat exchange component arranged on one side of the rectifying tower body and used for high-temperature gas heat exchange, wherein a secondary heat exchange component used for heat tracing hot water heat exchange is arranged at the front end of the main heat exchange component, a first feeding pipe piece used for conveying and exchanging gas in the rectifying tower body is communicated with the left side of the main heat exchange component, a second feeding pipe piece used for heat tracing air feeding is communicated with the air-entraining end of the secondary heat exchange component, and the other end of the second feeding pipe piece is communicated with the surface of the first feeding pipe piece and used for high-temperature gas split-flow conveying work.
In a specific embodiment, the bottom of one end of the rectifying tower body is communicated with a production pipe fitting for liquid production, and the feeding end of the rectifying tower body is connected with a feeding pipe fitting through a sealing flange.
In a specific embodiment, the back end of the rectifying tower body is provided with a reboiler body for heating the internal material body, and one end of the reboiler body connected with the rectifying tower body is communicated with a connecting pipe fitting.
In a specific embodiment, the circulating water input end of the main heat exchange component is communicated with a first liquid inlet pipe fitting for liquid heat exchange input, and the right end of the main heat exchange component is communicated with a discharge part for auxiliary delivery of heat exchange gas.
In a specific embodiment, the hot water conveying end of the secondary heat exchange component is communicated with a second liquid inlet pipe fitting for conveying the heat tracing hot water into the secondary heat exchange component, and the right side of the secondary heat exchange component is communicated with a conducting pipe fitting for conveying the heat exchange gas out.
In a specific embodiment, the surface of the second delivery tube is provided with a self-regulating valve for gas delivery.
In a specific embodiment, the liquid output end of the heat exchange component is communicated with a hot water heat tracing pipe, the hot water heat tracing pipe can send out heat tracing hot water, and a temperature detecting piece is arranged on the surface of the hot water heat tracing pipe.
In a specific embodiment, one end of the main heat exchange component is provided with a reflux tank body for storing heat exchange cooling gas, and the bottom of one end of the reflux tank body is communicated with a sampling pipe fitting for gas utilization and extraction.
In a specific embodiment, the top of the reflux tank body is connected with an extraction piece for gas inflow through a flange, and one end of the extraction piece, which is far away from the reflux tank body, is communicated with the surface of the conduction pipe fitting.
In a specific embodiment, the gas delivery end of the reflux tank body is communicated with a gas guide pipe, and one end of the gas guide pipe away from the reflux tank body is communicated with the top of the rectifying tower body.
The beneficial effects of this application are: the high-temperature gas after rectification in the rectifying tower body is led into the main heat exchange component through the first liquid feeding pipe fitting, circulating cooling water is injected into the main heat exchange component through the first liquid feeding pipe fitting, so that the high-temperature gas entering the main heat exchange component can exchange heat with the cooling water, the gas cooled to a certain temperature is partially extracted, the gas is partially led into the reflux tank body so as to be conveniently used in the rectifying tower body after subsequent reflux, hot water is led into the main heat exchange component through the second liquid feeding pipe fitting, the hot water is discharged through the hot water heat tracing pipe fitting for carrying out hot water heat tracing treatment, the temperature detecting part can monitor the temperature of the water body flowing through the temperature detecting part, and when the temperature of the temperature detecting part does not reach a certain degree, the self-regulating valve is controlled to send the high-temperature gas in the rectifying tower body into the auxiliary heat exchange component through the first liquid feeding pipe fitting and the second liquid feeding pipe fitting, so that the hot water in the auxiliary heat exchange component is subjected to heat exchange treatment again, and the hot water in the main heat exchange component reaches a certain temperature, and the temperature of the hot water heat tracing is controlled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an overall structure of an embodiment of the present utility model;
FIG. 2 is a right side perspective view of the overall structure of an embodiment of the present utility model;
FIG. 3 is a schematic perspective view of a secondary heat exchange component according to an embodiment of the present utility model;
fig. 4 is a schematic left-hand perspective view of a heat exchange component structure according to an embodiment of the present utility model.
Icon:
10. a rectifying tower body; 101. extracting the pipe fitting; 102. a feed tube; 11. a reboiler body; 111. a connecting pipe fitting; 10a, a gas phase output part;
20. a main heat exchange component; 201. a first liquid inlet pipe fitting; 202. a discharge member; 21. a first feeding pipe fitting;
30. a slave heat exchange member; 301. a second liquid inlet pipe fitting; 302. conducting the pipe fitting; 31. a second feeding pipe fitting; 32. a self-regulating valve; 33. hot water heat tracing pipe fitting; 34. a temperature detecting piece;
40. a reflux tank; 401. collecting and guiding a pipe fitting; 41. a lead-out member; 42. and an air guide pipe fitting.
Detailed Description
Because the existing waste heat utilization equipment can only circularly heat cooling water, in the working process of the rectifying tower, the temperature rising treatment of the heat tracing hot water cannot be assisted, then the water body can be heated by adopting a temperature rising electric appliance component before the heat tracing hot water is introduced into the rectifying tower by utilizing the hot water heat tracing component, so that the heat tracing hot water reaches the heat tracing demand temperature, in the working process, the processing cost is increased, and the temperature of the heat tracing hot water cannot be controlled by using a tower top heat source in an assisted manner. Therefore, the inventor provides a rectifying tower top gas phase component waste heat utilization device through research, which can avoid the problem that the waste heat utilization device can only exchange heat for cooling water and cannot assist in heat exchange utilization for heat tracing hot water, thereby solving the defects.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 to 4, an embodiment of the utility model provides a rectifying tower top gas phase component waste heat utilization device, which comprises a rectifying tower body 10 and a main heat exchange component 20 arranged at one side of the rectifying tower body 10 and used for high-temperature gas heat exchange, wherein a secondary heat exchange component 30 used for heat tracing hot water heat exchange is arranged at the front end of the main heat exchange component 20, a first guide pipe component 21 used for conveying and exchanging gas in the rectifying tower body 10 is communicated with the left side of the main heat exchange component 20, a second guide pipe component 31 used for heat tracing gas is communicated with the air-entraining end of the heat exchange component 30, and the other end of the second guide pipe component 31 is communicated with the surface of the first guide pipe component 21 and used for high-temperature gas split-flow conveying work.
Referring to fig. 1 to 2, a bottom of one end of a rectifying tower body 10 is communicated with a production pipe 101 for liquid production, a feed end of the rectifying tower body 10 is connected with a feed pipe 102 through a sealing flange, and is communicated with an external feed pipeline, so that the material body can be attached into the rectifying tower body 10; the back end of the rectifying tower body 10 is provided with a reboiler body 11 for heating the internal material body, one end of the reboiler body 11 connected with the rectifying tower body 10 is communicated with a connecting pipe piece 111, two ends of the connecting pipe piece 111 are respectively connected with one end of the rectifying tower body 10 connected with the reboiler body 11 in a sealing way through flange plates, the connecting pipe piece 111 is composed of a high heat preservation and insulation material, and the top of the rectifying tower body 10 is provided with a gas phase output part 10a for gas phase output.
Referring to fig. 1 to 4, a circulating water input end of the main heat exchange component 20 is connected to a first liquid inlet pipe 201 for liquid heat exchange input, and a right end of the main heat exchange component 20 is connected to a discharge member 202 for heat exchange gas auxiliary delivery.
Referring to fig. 1 to 4, a second liquid inlet pipe 301 is connected to a hot water delivery end of the heat exchange component 30, and heat tracing hot water is delivered into the heat exchange component 30, a conducting pipe 302 for delivering heat exchanged gas is connected to a right side of the heat exchange component 30, and one end of the conducting pipe 302 away from the heat exchange component 30 is connected to a surface of the delivery member 202, so that the heat exchanged gas in the heat exchange component 30 and the main heat exchange component 20 can be delivered into the conducting pipe 302 for extracting and introducing the gas into other components; the surface of the second feeding pipe fitting 31 is provided with a self-regulating valve 32 for regulating and delivering gas, so that the opening and closing operation of the second feeding pipe fitting 31 can be controlled;
a hot water heat tracing pipe 33 is connected to the liquid output end of the heat exchange member 30, and a hot water heat tracing pipe 33 for feeding out the heat tracing hot water is provided, and a temperature detecting member 34 for monitoring the temperature of the heat tracing hot water and adjusting the heat exchange strength is provided on the surface of the hot water heat tracing pipe 33.
Referring to fig. 1 to 2, one end of the main heat exchange component 20 is provided with a backflow tank 40 for storing heat exchange cooling gas, and a sampling pipe 401 for extracting gas by utilizing is communicated with the bottom of one end of the backflow tank 40;
the top of the reflux tank body 40 is connected with an extraction piece 41 for introducing gas through a flange, one end of the extraction piece 41 far away from the reflux tank body 40 is communicated with the surface of a conduction pipe fitting 302, the gas in the main heat exchange component 20 and the secondary heat exchange component 30 can be sent into the extraction piece 41 through the conduction pipe fitting 302 and a discharge piece 202, and electric control valves are arranged on the surfaces of the conduction pipe fitting 302 and the discharge piece 202 and used for controlling the opening and closing of the pipe fittings;
the gas transmission end of the reflux tank body 40 is communicated with a gas guide pipe fitting 42, one end, far away from the reflux tank body 40, of the gas guide pipe fitting 42 is communicated with the top of the rectifying tower body 10, and cooled gas can be refluxed into the rectifying tower body 10 for use.
In summary, the working principle of the rectifying tower top gas phase component waste heat utilization device is as follows: the high-temperature gas after rectification in the rectifying tower body 10 is led into the main heat exchange component 20 through the first liquid feeding pipe fitting 21, circulating cooling water can be injected into the main heat exchange component 20 through the first liquid feeding pipe fitting 201, so that the high-temperature gas entering the main heat exchange component 20 can exchange heat with the cooling water, the gas cooled to a certain temperature is partially extracted, the gas partially enters the reflux tank 40 so as to be convenient for subsequent reflux and utilization in the rectifying tower body 10, hot water is led into the main heat exchange component 20 through the second liquid feeding pipe fitting 301, hot water heat tracing treatment is carried out through the hot water heat tracing pipe fitting 33, the temperature detecting part 34 can monitor the heat of water flowing through the main heat exchange component, and when the temperature of the water is not reached to a certain extent, the self-regulating valve 32 is controlled to send the high-temperature gas in the rectifying tower body 10 into the auxiliary heat exchange component 30 through the first liquid feeding pipe fitting 21 and the second liquid feeding pipe fitting 31, so that the hot water in the auxiliary heat exchange component 30 is subjected to heat exchange treatment again to a certain temperature, and the temperature of the hot water heat tracing is controlled.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a rectifying column top gaseous phase component waste heat utilization device, includes rectifying column body (10) to and set up main heat transfer part (20) that are used for high temperature gas heat transfer in rectifying column body (10) one side, a serial communication port, the front end of main heat transfer part (20) is provided with and is used for the follow heat transfer part (30) of companion hot water heat transfer, the left side intercommunication of main heat transfer part (20) has and is used for the delivery pipe spare (21) of gas transport heat transfer in rectifying column body (10), the air-entraining end intercommunication of follow heat transfer part (30) has the delivery pipe spare second (31) that are used for companion heat to send gas, the other end and the surface intercommunication of delivery pipe spare first (21) of delivery pipe spare second (31) are used for high temperature gas reposition of redundant personnel to carry work.
2. The rectifying tower top gas phase component waste heat utilization device according to claim 1, wherein a production pipe (101) for liquid production is communicated with the bottom of one end of the rectifying tower body (10), and a feeding pipe (102) is connected with a feeding end of the rectifying tower body (10) through a sealing flange.
3. The rectifying tower top gas phase component waste heat utilization device according to claim 1, wherein a reboiler (11) is installed at the rear end of the rectifying tower body (10), and one end, connected with the rectifying tower body (10), of the reboiler (11) is communicated with a connecting pipe fitting (111).
4. The rectifying tower top gas phase component waste heat utilization device according to claim 1, wherein the circulating water input end of the main heat exchange component (20) is communicated with a first liquid inlet pipe fitting (201), and the right end of the main heat exchange component (20) is communicated with a discharging part (202) for assisting in conveying heat exchange gas.
5. The rectifying tower top gas phase component waste heat utilization device according to claim 1, wherein a hot water conveying end of the secondary heat exchange component (30) is communicated with a second liquid inlet pipe fitting (301), heat tracing hot water is conveyed into the secondary heat exchange component (30), and a conducting pipe fitting (302) for conveying out heat exchanged gas is communicated with the right side of the secondary heat exchange component (30).
6. The rectifying tower overhead gas phase component waste heat utilization device according to claim 1, wherein a self-regulating valve (32) for gas regulating is arranged on the surface of the second feeding pipe fitting (31).
7. The rectifying column overhead gas phase component waste heat utilization apparatus according to claim 1, wherein the liquid output end of the heat exchange member (30) is communicated with a hot water heat tracing pipe (33), a hot water heat tracing pipe (33) capable of sending out heat tracing hot water is provided, and a temperature detecting member (34) is mounted on the surface of the hot water heat tracing pipe (33).
8. The rectifying tower top gas phase component waste heat utilization device according to claim 1, wherein one end of the main heat exchange component (20) is provided with a reflux tank body (40) for heat exchange and temperature reduction gas storage, and a recovery pipe fitting (401) for gas utilization recovery is communicated with the bottom of one end of the reflux tank body (40).
9. The rectifying tower top gas phase component waste heat utilization device according to claim 8, wherein an extraction piece (41) is connected to the top of the reflux tank body (40) through a flange, and one end of the extraction piece (41) away from the reflux tank body (40) is communicated with the surface of the conducting pipe fitting (302).
10. The rectifying tower top gas phase component waste heat utilization device according to claim 8, wherein a gas transmission end of the reflux tank body (40) is communicated with a gas guide pipe fitting (42), and one end of the gas guide pipe fitting (42) far away from the reflux tank body (40) is communicated with the top of the rectifying tower body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259139.5U CN220750907U (en) | 2023-08-22 | 2023-08-22 | Rectifying column top gas phase component waste heat utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259139.5U CN220750907U (en) | 2023-08-22 | 2023-08-22 | Rectifying column top gas phase component waste heat utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220750907U true CN220750907U (en) | 2024-04-09 |
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ID=90554219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322259139.5U Active CN220750907U (en) | 2023-08-22 | 2023-08-22 | Rectifying column top gas phase component waste heat utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220750907U (en) |
-
2023
- 2023-08-22 CN CN202322259139.5U patent/CN220750907U/en active Active
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