CN212166571U - Coal industry ethylene glycol product tower top gas phase heat recycle device - Google Patents
Coal industry ethylene glycol product tower top gas phase heat recycle device Download PDFInfo
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- CN212166571U CN212166571U CN202020523756.5U CN202020523756U CN212166571U CN 212166571 U CN212166571 U CN 212166571U CN 202020523756 U CN202020523756 U CN 202020523756U CN 212166571 U CN212166571 U CN 212166571U
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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
- Y02P20/00—Technologies relating to chemical industry
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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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- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model belongs to the technical field of coal chemical industry energy conservation, in particular to a coal chemical industry ethylene glycol product tower top gas phase heat recycling device, which comprises a heat recycling device, a methanol recovery tower kettle reboiler, a condensate water cooler, a condensate water collecting tank and a condensate water delivery pump, the utility model discloses a heat recycling device is arranged to recycle heat brought by the tower top gas phase of 142-146 ℃ on the top of the ethylene glycol product tower into steam, provides heat for the methanol recovery tower kettle reboiler, effectively solves the problem of difficult heat utilization on the top of the ethylene glycol product tower, and simultaneously greatly reduces the consumption of the cooling capacity on the top of the ethylene glycol product tower and the consumption of the heat of the methanol recovery tower; through setting up condensate water cooler, condensate water collection tank, comdenstion water delivery pump, collect the comdenstion water and recycle, the effectual water resource of having practiced thrift has reduced the manufacturing cost of enterprise.
Description
Technical Field
The utility model belongs to the technical field of the coal chemical industry is energy-conserving, concretely relates to coal chemical industry ethylene glycol product tower top gaseous phase heat recycle device.
Background
In industrial production, the proportion of energy consumption in the petrochemical industry is the largest, and the largest energy consumption in the petrochemical industry is separation operation, wherein the energy consumption of rectification is the first place, and the rectification process is a complex mass and heat transfer process. With the rapid development of the petrochemical industry, particularly the rapid rise of the coal chemical industry, the application of the rectification operation is wider and wider, the components of the separated materials are continuously increased, the purity requirement of the separated products is also continuously improved, and meanwhile, excessive energy is not expected to be consumed. Because most of energy consumed in the rectification process is not used for component separation, but is taken away by cooling water or separated components, the part of heat is not utilized completely, if the part of energy is not recycled in time, huge energy waste is caused, meanwhile, the waste of fuel resources is also caused, meanwhile, a large amount of water resources and cold energy are consumed to transfer the part of heat, and the production cost of enterprises is correspondingly improved.
Disclosure of Invention
In order to overcome prior art's defect, to the difficult problem of utilizing of present internal ethylene glycol product top of the tower heat, the utility model provides a coal industry ethylene glycol product tower top of the tower gaseous phase heat recovery utilizes device.
In order to solve the existing difficult problem, the utility model discloses a technical scheme as follows:
a gas phase heat recycling device at the top of a coal chemical industry ethylene glycol product tower comprises a heat recycling device, a methanol recycling tower kettle reboiler, a condensed water cooler, a condensed water collecting tank and a condensed water conveying pump, wherein all devices are connected in sequence through pipelines;
the heat recovery device is provided with a gas phase inlet, a gas phase outlet, a soft water inlet, a steam outlet and a condensate outlet; a gas phase inlet of the heat recovery device is connected with a gas phase outlet at the top of the ethylene glycol product tower through a pipeline, a gas phase outlet of the heat recovery device is connected with a gas phase inlet of an ethylene glycol product tower cooler through a pipeline, a soft water inlet of the heat recovery device is connected with a soft water pipeline, and a condensate outlet of the heat recovery device is connected to an ethylene glycol product tower reflux tank through a pipeline;
the reboiler of the tower kettle of the methanol recovery tower is provided with a steam inlet, a condensate outlet, a tower kettle liquid inlet and a reboiler gas phase outlet, the steam inlet of the reboiler of the tower kettle of the methanol recovery tower is connected with the steam outlet of the heat recovery device through a pipeline, the tower kettle liquid inlet of the reboiler of the tower kettle of the methanol recovery tower is connected with the tower kettle of the methanol recovery tower through a pipeline, and the reboiler gas phase outlet of the reboiler of the tower kettle of the methanol recovery tower is connected with the methanol recovery tower through a pipeline;
the condensed water cooler is provided with a circulating water inlet, a circulating water outlet, a condensed water inlet and a low-temperature condensed water outlet, the circulating water inlet of the condensed water cooler is connected with a circulating water upper water pipeline, the circulating water outlet of the condensed water cooler is connected with a circulating water return pipeline, and the condensed water inlet of the condensed water cooler is connected with a condensed water outlet of a reboiler of a tower kettle of the methanol recovery tower through a pipeline;
the condensed water collecting tank is provided with a low-temperature condensed water inlet and a low-temperature condensed water outlet, the low-temperature condensed water inlet of the condensed water collecting tank is connected with the low-temperature condensed water outlet of the condensed water cooler through a pipeline, and the water outlet of the condensed water collecting tank is connected with the inlet of the condensed water conveying pump through a pipeline;
and the outlet of the condensed water delivery pump is connected with a condensed water recovery device through a pipeline.
Preferably, the heat recovery device is provided with a field pressure gauge, a field thermometer, a remote pressure transmitter A and a remote temperature transmitter A.
Preferably, the soft water pipeline is provided with a flow meter and a regulating valve.
Preferably, a safety valve and an adjusting vent valve are arranged on a pipeline connecting a steam inlet of the reboiler at the bottom of the methanol recovery tower and a steam outlet of the heat recovery device.
Preferably, a drain valve and a stop valve are arranged on a pipeline connecting a condensed water inlet of the condensed water cooler and a condensed water outlet of a reboiler of a tower kettle of the methanol recovery tower.
Preferably, wherein, the condensate water collection tank is equipped with teletransmission pressure transmitter B, teletransmission temperature transmitter B, level gauge, drain connects gradually with atmospheric valve, atmospheric return bend.
Preferably, a remote pressure transmitter C, an online flowmeter, a regulating valve and a return pipeline are arranged on a pipeline connecting an outlet of the condensed water delivery pump and the condensed water recovery device, and the return pipeline is connected to the condensed water collection tank.
Has the advantages that:
the utility model discloses a heat recovery unit carries out the heat exchange with ethylene glycol product tower top gaseous phase and soft water, turns into steam with the soft water heating, rethread methyl alcohol recovery tower cauldron reboiler, and steam carries out the heat exchange with methyl alcohol recovery tower cauldron liquid, has reached ethylene glycol product tower top gaseous phase heat recycle, has reduced the consumption of ethylene glycol product tower top of the tower cooler cold volume and the thermal consumption of methyl alcohol recovery tower simultaneously, has practiced thrift energy resource, has reduced the manufacturing cost of enterprise.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present invention;
in the figure: 1-a heat recovery device; 2-a reboiler at the tower bottom of the methanol recovery tower; 3-a condensate cooler; 4-a condensate collection tank; 5-a condensate water delivery pump; 6-soft water pipeline; 7-gas phase inlet; 8-gas phase outlet; 9-condensate outlet; 10-soft water inlet; 11-a steam outlet; 12-field pressure gauge; 13-remote pressure transmitter a; 14-remote temperature transmitter a; 15-field thermometer; 16-a steam inlet; 17-a condensate outlet; 18-tower bottoms inlet; 19-reboiler gas phase outlet; 20-a circulating water inlet; 21-a circulating water outlet; 22-condensate inlet; 23-a low temperature condensate outlet; 24-a low temperature condensate inlet; 25-a water outlet; 26-remote pressure transmitter B; 27-remote temperature transmitter B; 28-remote pressure transmitter C; 29-vent.
Detailed Description
In the embodiment, the heat recovery device is preferably a waste boiler, but is not limited to other equipment with the same performance; the regulating valve and the emptying regulating valve are provided with bypass pipelines, and the bypass pipelines are provided with cut-off valves;
in order to facilitate those skilled in the art to more accurately understand the technical solutions and the working principles of the present invention, the following detailed description is provided by way of example.
Examples
Referring to fig. 1, the utility model comprises a heat recovery device 1, a reboiler 2 of a methanol recovery tower kettle, a condensate cooler 3, a condensate water collecting tank 4 and a condensate water delivery pump 5, wherein all devices are connected in sequence through pipelines;
the heat recovery device 1 is provided with a gas phase inlet 7, a gas phase outlet 8, a soft water inlet 10, a steam outlet 11, a condensate outlet 9, a field pressure gauge 12, a field thermometer 15, a remote pressure transmitter A13 and a remote temperature transmitter A14; a stop valve is arranged at the joint of the remote pressure transmitter A13 and the remote temperature transmitter A14 and the heat recovery device 1; a gas phase inlet 7 of the heat recovery device 1 is connected with a gas phase outlet at the top of the ethylene glycol product tower through a pipeline, a gas phase outlet 8 of the heat recovery device 1 is connected with a gas phase inlet of an ethylene glycol product tower cooler through a pipeline, a soft water inlet 10 of the heat recovery device 1 is connected with a soft water pipeline 6, a flowmeter and a regulating valve are arranged on the soft water pipeline 6, and a condensate outlet 9 of the heat recovery device 1 is connected to a reflux tank of the ethylene glycol product tower through a pipeline;
the methanol recovery tower kettle reboiler 2 is provided with a steam inlet 16, a condensate outlet 17, a tower bottom liquid inlet 18 and a reboiler gas phase outlet 19, the steam inlet 16 of the methanol recovery tower kettle reboiler 2 is connected with the steam outlet 11 of the heat recovery device 1 through a pipeline, the pipeline connecting the steam inlet 16 of the methanol recovery tower kettle reboiler 2 with the steam outlet 11 of the heat recovery device 1 is provided with an adjusting vent valve, a stop valve and a safety valve which are sequentially connected, the tower bottom liquid inlet 18 of the methanol recovery tower kettle reboiler 2 is connected with the methanol recovery tower kettle through a pipeline, and the reboiler gas phase outlet 19 of the methanol recovery tower kettle reboiler 2 is connected with the methanol recovery tower through a pipeline;
the condensed water condenser 3 is provided with a circulating water inlet 20, a circulating water outlet 21, a condensed water inlet 22 and a low-temperature condensed water outlet 23, the circulating water inlet 20 of the condensed water cooler 3 is connected with a circulating water upper water pipeline, the circulating water outlet 21 of the condensed water cooler 3 is connected with a circulating water return pipeline, the condensed water inlet 22 of the condensed water cooler 3 is connected with the condensed water outlet 17 of the methanol recovery tower kettle reboiler 2 through a pipeline, and a drain valve and a stop valve are arranged on the pipeline connecting the condensed water inlet 22 of the condensed water cooler 3 with the condensed water outlet 17 of the methanol recovery tower kettle reboiler 2;
the condensed water collecting tank 4 is provided with a low-temperature condensed water inlet 24 and a water outlet 25, the condensed water collecting tank 4 is provided with a remote transmission pressure transmitter B26, a remote transmission temperature transmitter B27 and a vent 29, the vent 29 is sequentially connected with a vent valve and a vent elbow, the low-temperature condensed water inlet 24 of the condensed water collecting tank 4 is connected with the low-temperature condensed water outlet 23 of the condensed water cooler 3 through a pipeline, and the water outlet 25 of the condensed water collecting tank 4 is connected with the inlet of the condensed water conveying pump 5 through a pipeline;
the export of comdenstion water delivery pump 5 passes through the pipe connection with condensate recovery unit, be equipped with teletransmission pressure transmitter C28, on-line flow meter, governing valve, backflow pipeline on the pipeline that the export of comdenstion water delivery pump 5 and condensate recovery unit are connected, backflow pipeline is connected to the comdenstion water collection tank.
The working principle of the utility model is as follows: the method comprises the following steps that a tower top gas phase of 142-146 ℃ at the tower top of an ethylene glycol product tower and soft water sent by a soft water pipeline 6 enter a heat recovery device 1 from a gas phase inlet 7 and a soft water inlet 10 respectively for heat exchange, steam generated by heating the soft water enters a methanol recovery tower kettle reboiler 2 and is subjected to heat exchange with methanol recovery tower kettle liquid, the gas phase generated by heating the methanol recovery tower kettle liquid enters a methanol recovery tower from a reboiler gas phase outlet 19, condensed water generated by the methanol recovery tower kettle reboiler 2 enters a condensed water cooler 3, is cooled by the condensed water cooler 3 and then enters a condensed water collection tank 4, and low-temperature condensed water in the condensed water collection tank 4 is pressurized by a condensed water delivery pump 5 and then is sent to the condensed water recovery device; after the tower top gas phase of 142-146 ℃ at the tower top of the ethylene glycol product tower releases heat in the heat recovery device 1, the tower top gas phase which is not condensed enters the ethylene glycol product tower cooler to continue cooling, and condensate of the tower top gas phase enters the ethylene glycol product tower reflux tank from a condensate outlet 9.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art can make various modifications and variations of the present invention without departing from the spirit and scope of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. A gas phase heat recycling device at the top of a coal chemical industry ethylene glycol product tower is characterized by comprising a heat recycling device, a methanol recycling tower kettle reboiler, a condensed water cooler, a condensed water collecting tank and a condensed water conveying pump, wherein all devices are connected in sequence through pipelines;
the heat recovery device is provided with a gas phase inlet, a gas phase outlet, a soft water inlet, a steam outlet and a condensate outlet; a gas phase inlet of the heat recovery device is connected with a gas phase outlet at the top of the ethylene glycol product tower through a pipeline, a gas phase outlet of the heat recovery device is connected with a gas phase inlet of an ethylene glycol product tower cooler through a pipeline, a soft water inlet of the heat recovery device is connected with a soft water pipeline, and a condensate outlet of the heat recovery device is connected to an ethylene glycol product tower reflux tank through a pipeline;
the reboiler of the tower kettle of the methanol recovery tower is provided with a steam inlet, a condensate outlet, a tower kettle liquid inlet and a reboiler gas phase outlet, the steam inlet of the reboiler of the tower kettle of the methanol recovery tower is connected with the steam outlet of the heat recovery device through a pipeline, the tower kettle liquid inlet of the reboiler of the tower kettle of the methanol recovery tower is connected with the tower kettle of the methanol recovery tower through a pipeline, and the reboiler gas phase outlet of the reboiler of the tower kettle of the methanol recovery tower is connected with the methanol recovery tower through a pipeline;
the condensed water cooler is provided with a circulating water inlet, a circulating water outlet, a condensed water inlet and a low-temperature condensed water outlet, the circulating water inlet of the condensed water cooler is connected with a circulating water upper water pipeline, the circulating water outlet of the condensed water cooler is connected with a circulating water return pipeline, and the condensed water inlet of the condensed water cooler is connected with a condensed water outlet of a reboiler of a tower kettle of the methanol recovery tower through a pipeline;
the condensed water collecting tank is provided with a low-temperature condensed water inlet and a low-temperature condensed water outlet, the low-temperature condensed water inlet of the condensed water collecting tank is connected with the low-temperature condensed water outlet of the condensed water cooler through a pipeline, and the water outlet of the condensed water collecting tank is connected with the inlet of the condensed water conveying pump through a pipeline;
and the outlet of the condensed water delivery pump is connected with a condensed water recovery device through a pipeline.
2. The device for recycling the gas-phase heat at the top of the coal chemical industry ethylene glycol product tower as claimed in claim 1, wherein the heat recycling device is provided with a field pressure gauge, a field thermometer, a remote pressure transmitter A and a remote temperature transmitter A.
3. The device for recycling gas-phase heat at the top of the coal chemical industry ethylene glycol product tower as claimed in claim 1, wherein a flow meter and a regulating valve are arranged on the soft water pipeline.
4. The device for recycling the gas-phase heat at the top of the coal chemical industry ethylene glycol product tower as claimed in claim 1, wherein a safety valve and an adjusting vent valve are arranged on a pipeline connecting a steam inlet of the methanol recovery tower kettle reboiler with a steam outlet of the heat recovery device.
5. The device for recycling the gas-phase heat at the top of the coal chemical industry ethylene glycol product tower as claimed in claim 1, wherein a drain valve and a stop valve are arranged on a pipeline connecting a condensed water inlet of the condensed water cooler and a condensed water outlet of a reboiler at the bottom of the methanol recovery tower.
6. The device for recycling gas-phase heat at the top of the coal chemical industry ethylene glycol product tower as claimed in claim 1, wherein the condensed water collection tank is provided with a remote pressure transmitter B, a remote temperature transmitter B, a liquid level meter and a vent, and the vent is sequentially connected with a vent valve and a vent elbow.
7. The device for recycling the gas-phase heat at the top of the coal chemical industry ethylene glycol product tower as claimed in claim 1, wherein a remote pressure transmitter C, an online flowmeter, an adjusting valve and a return pipeline are arranged on a pipeline connecting an outlet of the condensate water delivery pump and the condensate water recycling device, and the return pipeline is connected to the condensate water collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020523756.5U CN212166571U (en) | 2020-04-11 | 2020-04-11 | Coal industry ethylene glycol product tower top gas phase heat recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020523756.5U CN212166571U (en) | 2020-04-11 | 2020-04-11 | Coal industry ethylene glycol product tower top gas phase heat recycle device |
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| Publication Number | Publication Date |
|---|---|
| CN212166571U true CN212166571U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020523756.5U Active CN212166571U (en) | 2020-04-11 | 2020-04-11 | Coal industry ethylene glycol product tower top gas phase heat recycle device |
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| Country | Link |
|---|---|
| CN (1) | CN212166571U (en) |
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- 2020-04-11 CN CN202020523756.5U patent/CN212166571U/en active Active
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