CN211133043U - Rectifying column waste heat recovery device - Google Patents
Rectifying column waste heat recovery device Download PDFInfo
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- CN211133043U CN211133043U CN201921749353.6U CN201921749353U CN211133043U CN 211133043 U CN211133043 U CN 211133043U CN 201921749353 U CN201921749353 U CN 201921749353U CN 211133043 U CN211133043 U CN 211133043U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a rectifying tower waste heat recovery device, which comprises a rectifying tower, wherein the lower end of the rectifying tower is provided with a steam inlet pipe and a tower bottom product discharge pipe, the upper end of the rectifying tower is provided with a liquid inlet pipe, the top of the rectifying tower is provided with a steam outlet, the steam outlet is provided with a recovery pipe, the recovery pipe is provided with a tower top product discharge pipe communicated with the recovery pipe, the recovery pipe is connected with a first steam return pipe and a second steam return pipe through a three-way valve, the first steam return pipe is connected with a condensing tank, the periphery of the condensing tank is provided with a refrigerating sheet, the bottom of the condensing tank is provided with a return water pipe, the return water pipe is connected with a condenser, the output end of the condenser is connected with the liquid inlet pipe, the second steam return pipe is connected with a steam heating tank, a heater is arranged in the steam heating tank, the return air pipe is, the liquid inlet pipe is communicated with a product discharge pipe at the bottom of the tower through a pump. The utility model discloses simple structure, recovery waste heat efficiency are high.
Description
Technical Field
The utility model relates to a waste heat recovery equipment technical field, especially a rectifying column waste heat recovery device.
Background
The rectifying tower is a tower-type gas-liquid contact device for rectifying. By utilizing the property that each component in the mixture has different volatility, namely the vapor pressure of each component is different at the same temperature, the light component (low-boiling-point substance) in the liquid phase is transferred into the gas phase, and the heavy component (high-boiling-point substance) in the gas phase is transferred into the liquid phase, thereby realizing the purpose of separation. The rectifying tower is also a mass and heat transfer device which is widely applied in petrochemical production.
The existing rectifying tower mostly adopts a steam heating mode to heat liquid in the tower to realize rectification, after feed liquid with certain temperature and pressure enters the rectifying tower, light components are gradually concentrated in a rectifying section, one part of the feed liquid is taken as a tower top product (also called distillate) after leaving the tower top, and the other part of the feed liquid is sent into the tower as reflux liquid after being condensed by a condenser, but after the steam is condensed by the condenser, the heat carried in the feed liquid is not completely dissipated, so that the heat waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the not enough to above-mentioned prior art provides a simple structure, retrieves the high rectifying column waste heat recovery device of waste heat efficiency.
In order to realize the above purpose, the technical scheme of the utility model is as follows:
a rectifying tower waste heat recovery device comprises a rectifying tower, wherein a steam inlet pipe and a tower bottom product discharge pipe are installed at the lower end of the rectifying tower, a liquid inlet pipe is installed at the upper end of the rectifying tower, a steam outlet is installed at the top of the rectifying tower, a recovery pipe is installed on the steam outlet, a tower top product discharge pipe communicated with the recovery pipe is installed on the recovery pipe, the recovery pipe is connected with a first steam return pipe and a second steam return pipe through a three-way valve, valves are installed on the first steam return pipe and the second steam return pipe, the first steam return pipe is connected with a condensing tank, a refrigerating sheet is installed on the periphery of the condensing tank, a return water pipe is installed at the bottom of the condensing tank, a condenser is connected with a return water pipe, the output end of the condenser is connected with the liquid inlet pipe, the second steam return pipe is connected with a steam heating tank, a heater is installed in the steam heating tank, a, and a valve is arranged on the steam heating tank, a liquid inlet pipe is arranged at the bottom of the steam heating tank, and the liquid inlet pipe is communicated with a product discharge pipe at the bottom of the tower through a pump.
Preferably, an air compressor is installed outside the condensation tank, a compressed air pipe is installed at the output end of the air compressor, the compressed air pipe is communicated with the condensation tank, and a pressure release valve is installed on the compressed air pipe.
Preferably, a spiral channel is installed in the condensing tank along the vertical axis direction of the condensing tank, and the first steam return pipe penetrates through the spiral channel to extend to the upper part of the inner bottom surface of the condensing tank.
Preferably, a filter layer is arranged in the recovery pipe and comprises a stainless steel wire mesh layer and an activated carbon layer which are arranged along the gas flow direction.
Preferably, the return gas pipe extends into the steam heating tank and the end surface of the return gas pipe is positioned above the water level line.
Preferably, a water level line window is installed on the steam heating tank, and scale marks are arranged on the water level line window.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) through arranging the recovery pipe, the first steam return pipe, the condensing tank and the refrigerating sheet, partial tower top products can be discharged into the condensing tank to cool steam, the steam is rapidly changed into liquid, a spiral channel is arranged in the condensing tank along the vertical axis direction of the condensing tank, the first steam return pipe penetrates through the spiral channel to extend to the upper part of the inner bottom surface of the condensing tank, the steam enters the bottom of the condensing tank through the first steam return pipe, then ascends along the spiral channel due to light weight, the residence time of the steam in the condensing tank is prolonged, the steam is liquefied due to the refrigeration of the refrigerating sheet in the ascending process, the steam is primarily cooled and liquefied, the liquefied liquid flows into the condenser to be further cooled, and finally enters the rectifying tower through the return pipe, the steam is reused, the waste of water resources can be avoided, and the heat carried in the steam can be effectively removed, an air compressor is arranged outside the condensation tank, so that the condensation tank can be pressurized, the water vapor can be rapidly liquefied under the pressurization condition, and the water vapor can be rapidly liquefied under the cooperation of the air compressor and the refrigeration sheet, so that the working efficiency is improved;
(2) through setting up the feed liquor pipe, product discharge pipe at the bottom of the tower, steam heating jar and heater, can be to discharging the product at the bottom of the tower into steam heating jar reheating, because carry with the heat in the steam originally, thereby can reduce the time of heating, return air pipe is installed to steam heating jar bottom, steam after the heating passes through in the return air pipe reentrant rectifying column, continue to heat the rectifying column, resources are saved, and, steam heating jar passes through second steam return pipe and back flow intercommunication, when detecting the unqualified product of discharging in the product discharge pipe at the top of the tower, can open the valve on the second steam return pipe, discharge the product at the top of the tower into steam heating jar, after heating, participate in the reaction again, avoid extravagant resources are saved, improve reuse rate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the condensing tank of the present invention;
fig. 3 is a schematic structural view of the steam heating tank of the present invention.
The labels in the figure are: 1-a rectifying tower, 2-a steam inlet pipe, 3-a liquid inlet pipe, 4-a steam outlet, 5-a recovery pipe, 6-a first steam return pipe, 7-a second steam return pipe, 8-a condensing tank, 9-a refrigerating sheet, 10-a return water pipe, 11-a steam heating tank, 12-a heater, 13-a return air pipe, 14-a spiral channel, 15-an air compressor, 16-a compressed air pipe, 17-a pressure relief valve, 18-a stainless steel wire mesh layer, 19-an active carbon layer, 20-a liquid inlet pipe, 21-a water level line window, 22-a scale mark, 23-a tower top product discharge pipe, 24-a tower bottom product discharge pipe and 25-a condenser.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention:
as shown in fig. 1 to fig. 3, the present embodiment provides a rectification tower waste heat recovery device, which includes a rectification tower 1, a steam inlet pipe 2, a liquid inlet pipe 3, a steam outlet 4, a recovery pipe 5, a first steam return pipe 6, a second steam return pipe 7, a condensation tank 8, a refrigeration sheet 9, a water return pipe 10, a steam heating tank 11, a heater 12, a return air pipe 13, a spiral passage 14, an air compressor 15, a compressed air pipe 16, a pressure release valve 17, a stainless steel wire mesh layer 18, an activated carbon layer 19, a liquid inlet pipe 20, a water level line window 21, a scale mark 22, a tower top product discharge pipe 23, a tower bottom product discharge pipe 24, and a condenser 25.
The device comprises a rectifying tower 1, a steam inlet pipe 2 and a tower bottom product discharge pipe 24 are installed at the lower end of the rectifying tower 1, a liquid inlet pipe 3 is installed at the upper end of the rectifying tower 1, a steam outlet 4 is installed at the top of the rectifying tower 1, a recovery pipe 5 is installed on the steam outlet 4, the recovery pipe 5 is L-shaped, a tower top product discharge pipe 23 communicated with the recovery pipe 5 is installed at one end, close to the steam outlet 4, of the recovery pipe 5 and used for discharging tower top products, a sealing cover is installed on the tower top product discharge pipe 23, a filtering layer is installed in one end, far away from the steam outlet 4, of the recovery pipe 5 and comprises a stainless steel wire mesh layer 18 and an active carbon layer 19 which are arranged along the gas flowing direction and can filter steam entering the recovery pipe 5 to avoid impurities carried in the steam and block the recovery pipe 5, one end, far away from the steam outlet 4, of the recovery pipe 5 is connected with a first steam return pipe 6 and a second steam return pipe 7 through a three-way valve, valves are installed on the first steam return pipe 6 and the second steam return pipe 7, and can adopt various conventional technologies such as an electromagnetic valve, the first steam return pipe 6 is connected with a condensing tank 8, the second steam.
The refrigeration piece 9 is installed to condensation jar 8 periphery, and the refrigeration piece 9 can adopt common technical means such as semiconductor refrigeration piece, and its cold junction and condensation jar 8 contact, and the hot junction setting can be guaranteed to cool off whole condensation jar 8 in the one end of keeping away from condensation jar 8, will get into the vapor cooling of condensation jar 8, makes its liquefaction water. The condensing tank 8 is internally provided with a spiral channel 14 along the vertical axis direction, the first steam return pipe 6 penetrates through the spiral channel 14 and extends to the upper part of the inner bottom surface of the condensing tank 8, after the steam is discharged from the first steam return pipe 6, the steam ascends along with the spiral channel 14 due to light weight, the retention time of the steam in the condensing tank 8 is increased, and in the ascending process, the steam is gradually cooled and liquefied under the action of the refrigerating sheet 9. Air compressor 15 is installed outward to condensation jar 8, and compressed air pipe 16 is installed to air compressor 15's output, compressed air pipe 16 and condensation jar 8 intercommunication, and install relief valve 17 on it, and air compressor 15 can carry out the pressure boost in the condensation jar 8, can make the quick liquefaction of steam under highly compressed effect, simultaneously under the refrigerated effect of refrigeration piece 9, makes the quick liquefaction of steam that gets into in the condensation jar 8. The bottom of the condensing tank 8 is provided with a backflow water pipe 10, the backflow water pipe 10 is connected with a condenser 25, the output end of the condenser 25 is connected with the liquid inlet pipe 3, the liquefied water in the condensing tank 8 flows into the condenser 25 through the backflow water pipe 10 to be further cooled, and finally enters the rectifying tower 1 again to be reused, so that resources are saved.
Feed liquor pipe 20 is installed to 11 bottoms of steam heating jar, and feed liquor pipe 20 passes through pump and tower bottom product discharge pipe 24 intercommunication, can arrange the product at the bottom of the tower into steam heating jar 11 in, installs heater 12 in the steam heating jar 11, and heater 12 can adopt electromagnetic heating, infrared heating or the multiple form of resistance heating lamp. The heater 12 can heat the tower bottom product in the steam heating tank 11 again, so that the tower bottom product is quickly heated to be steam, and the heating time can be reduced because the steam inherently carries heat; reflux pipe 13 is installed to steam heating jar 11 bottom, reflux pipe 13 extends to in steam heating jar 11 and its terminal surface is located the water level line top, reflux pipe 13 lower extreme advances tub 2 with steam and is connected, and install the valve on it, the valve can adopt the solenoid valve, multiple conventional prior art such as manual valve, through setting up steam heating jar 11 and heater 12, can reuse the heat in the discharged vapor, preheat and retrieve the recycle, resources are saved, and the reuse rate is improved, and waste heat recovery is realized. The upper part of the steam heating tank 11 is provided with a pressure valve, so that the pressure can be released when the internal pressure is overlarge, and the steam heating tank 11 is prevented from being damaged.
The steam heating tank 11 is provided with a water level line window 21, and the water level line window 21 is provided with scale marks 22. The water level condition in the steam heating tank 11 can be observed at any time through the water level line window 21, and the phenomenon that the water level is too high and runs off from the return air pipe 13 is avoided.
When the product discharged from the tower top product discharge pipe 23 is detected to be unqualified, the valve on the second steam return pipe 7 can be opened, the tower top product is discharged into the steam heating tank 11, and the heated product participates in the reaction again, so that the waste of resources is avoided, and the recycling rate is improved.
All equipment of the device is made of high-pressure-resistant and high-temperature-resistant materials, and valves are made of high-pressure-resistant and high-temperature-resistant valves.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
The utility model discloses a theory of operation: firstly, opening a valve on a first steam return pipe 6, discharging steam discharged from a rectifying tower 1 into a condensing tank 8, opening a refrigerating sheet 9 for refrigeration after the steam enters the condensing tank 8, simultaneously opening an air compressor 15, pressurizing the condensing tank 8, rapidly liquefying the steam by matching with the refrigerating sheet 9, opening a valve on a return water pipe 10 after the steam is finally liquefied, discharging the water in the condensing tank 8 into a condenser 25 for further cooling, and finally discharging the water back into the rectifying tower 1 again; at the moment, the tower bottom product enters steam through the liquid inlet pipe 20 and enters the steam heating tank 11, meanwhile, the heater 12 is started for heating, and the steam generated by heating enters the steam inlet pipe 2 through the reflux gas pipe 13 to heat the rectifying tower 1.
When the product discharged from the overhead product discharge pipe 23 is not qualified: and opening a valve on the second steam return pipe 7, discharging the product into a steam heating tank 11, heating, and then discharging into the rectifying tower 1 again to participate in the reaction again.
Claims (6)
1. The utility model provides a rectifying column waste heat recovery device, includes rectifying column (1), and rectifying column (1) lower extreme is installed steam and is advanced pipe (2) and tower bottom product discharge pipe (24), and liquid advances pipe (3) are installed to the upper end, and steam outlet (4) are installed at rectifying column (1) top, installs recovery tube (5) on steam outlet (4), installs tower top product discharge pipe (23) rather than the intercommunication on recovery tube (5), its characterized in that: the recycling pipe (5) is connected with a first steam return pipe (6) and a second steam return pipe (7) through a three-way valve, valves are installed on the first steam return pipe (6) and the second steam return pipe (7), the first steam return pipe (6) is connected with a condensing tank (8), a refrigerating sheet (9) is installed on the periphery of the condensing tank (8), a backflow water pipe (10) is installed at the bottom of the condensing tank (8), the backflow water pipe (10) is connected with a condenser (29), the output end of the condenser (29) is connected with a liquid inlet pipe (3), the second steam return pipe (7) is connected with a steam heating tank (11), a heater (12) is installed in the steam heating tank (11), a backflow gas pipe (13) is installed on the steam heating tank (11), the backflow gas pipe (13) is connected with the steam inlet pipe (2), a valve is installed on the backflow gas pipe, and a liquid inlet pipe (20) is installed at the bottom of the steam heating tank, the liquid inlet pipe (20) is communicated with a tower bottom product discharge pipe (24) through a pump.
2. The rectification column waste heat recovery device according to claim 1, characterized in that: air compressor (15) are installed outward to condensation jar (8), and air compressor (16) are installed to the output of air compressor (15), and air compressor (16) and condensation jar (8) UNICOM just install relief valve (17) on it.
3. The rectification column waste heat recovery device according to claim 1 or 2, characterized in that: a spiral channel (14) is installed in the condensing tank (8) along the vertical axis direction of the condensing tank, and the first steam return pipe (6) penetrates through the spiral channel (14) and extends to the position above the inner bottom surface of the condensing tank (8).
4. The rectification column waste heat recovery device according to claim 1, characterized in that: the recovery pipe (5) is internally provided with a filter layer which comprises a stainless steel wire mesh layer (18) and an activated carbon layer (19) which are arranged along the gas flow direction.
5. The rectification column waste heat recovery device according to claim 1, characterized in that: the backflow gas pipe (13) extends into the steam heating tank (11) and the end face of the backflow gas pipe is located above the water level line.
6. The rectification column waste heat recovery device according to claim 1, characterized in that: a water level line window (21) is installed on the steam heating tank (11), and scale marks (22) are arranged on the water level line window (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749353.6U CN211133043U (en) | 2019-10-18 | 2019-10-18 | Rectifying column waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749353.6U CN211133043U (en) | 2019-10-18 | 2019-10-18 | Rectifying column waste heat recovery device |
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| Publication Number | Publication Date |
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| CN211133043U true CN211133043U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921749353.6U Active CN211133043U (en) | 2019-10-18 | 2019-10-18 | Rectifying column waste heat recovery device |
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| CN (1) | CN211133043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205887A (en) * | 2020-09-30 | 2021-01-12 | 宁波方太厨具有限公司 | Exhaust structure of steaming and baking cooking equipment and steaming and baking integrated machine |
| CN116179768A (en) * | 2023-04-19 | 2023-05-30 | 湖北诺得胜制药有限公司 | Syrup preparation device |
-
2019
- 2019-10-18 CN CN201921749353.6U patent/CN211133043U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205887A (en) * | 2020-09-30 | 2021-01-12 | 宁波方太厨具有限公司 | Exhaust structure of steaming and baking cooking equipment and steaming and baking integrated machine |
| CN116179768A (en) * | 2023-04-19 | 2023-05-30 | 湖北诺得胜制药有限公司 | Syrup preparation device |
| CN116179768B (en) * | 2023-04-19 | 2023-11-03 | 湖北诺得胜制药有限公司 | Syrup preparation device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 618304 Group 15, Tuanjie village, Xiaohan Town, Guanghan City, Deyang City, Sichuan Province Patentee after: Sichuan baohanfeng Technology Group Co.,Ltd. Address before: 618304 Group 15, Tuanjie village, Xiaohan Town, Guanghan City, Deyang City, Sichuan Province Patentee before: Sichuan baohanfeng renewable resources Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |