CN213609858U - Vacuum working fluid dewatering device - Google Patents
Vacuum working fluid dewatering device Download PDFInfo
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- CN213609858U CN213609858U CN202022467385.6U CN202022467385U CN213609858U CN 213609858 U CN213609858 U CN 213609858U CN 202022467385 U CN202022467385 U CN 202022467385U CN 213609858 U CN213609858 U CN 213609858U
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- rectifying column
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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
- Y02P20/10—Process efficiency
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Abstract
The utility model provides a vacuum working solution dewatering device, including the rectifying column, rectifying column top export and hot water heat exchanger intercommunication, hot water heat exchanger's outlet pipe communicates gas phase pipeline and liquid phase pipeline respectively, the gas phase pipeline passes through warm water heat exchanger and gas-liquid separation jar intercommunication, liquid phase pipeline and reflux drum intercommunication, the import intercommunication of reflux drum and dewatering tank, the low moisture export of dewatering tank is through the pipeline and the rectifying column intercommunication of taking low moisture delivery pump, the high moisture export of dewatering tank cooperatees with burning the system through the pipeline of taking high moisture delivery pump and first sample valve, rectifying column bottom end export is through pipeline and the first regulating valve group intercommunication back to the certified products storage tank of taking third sample valve and tower cauldron pump. The utility model provides a vacuum working solution dewatering device can solve extravagant big, the big problem of energy consumption, has reduced unnecessary extravagant and loss, and the required energy of entire system is less, and whole process is kept apart with the atmosphere and is not polluted environment.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment and control technique and specifically relates to a vacuum working solution dewatering device.
Background
Diphenyl carbonate (DPC) is a necessary raw material for synthesizing polycarbonate, a vacuum environment is needed to reduce heat energy consumption in the production process of the product, and in order to enable the working solution of the liquid ring vacuum pump to be recycled, DPC reaction raw materials are used as the working solution.
Disclosure of Invention
The utility model aims to solve the technical problem that a vacuum working solution dewatering device is provided, can solve extravagant big, the big problem of energy consumption, different boiling points, the condensation point of application material realize the separation operation of moisture in the working solution through many times layered control, have reduced unnecessary extravagant and loss, and the required energy of entire system is less, and whole process is kept apart the non-polluted environment with the atmosphere.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a vacuum working solution dewatering device, including the rectifying column, rectifying column top export and hot water heat exchanger intercommunication, hot water heat exchanger's outlet pipe communicates gas phase pipeline and liquid phase pipeline respectively, the gas phase pipeline passes through warm water heat exchanger and gas-liquid separation jar intercommunication, liquid phase pipeline and reflux drum intercommunication, the import intercommunication of reflux drum and dewatering tank, the low moisture export of dewatering tank is through the pipeline and the rectifying column intercommunication of taking low moisture delivery pump, the high moisture export of dewatering tank cooperatees with burning the system through the pipeline of taking high moisture delivery pump and first sample valve, rectifying column bottom end export is through pipeline and the first regulating valve group intercommunication back to the certified products storage tank of taking third sample valve and tower cauldron pump.
The liquid phase outlet of the gas-liquid separation tank is communicated with the reflux tank.
The rectifying tower kettle is provided with a low-pressure steam half-pipe with a steam regulating valve group.
The reflux tank is communicated with the inlet of the dewatering tank through a pipeline with a liquid level regulating valve group.
And a second sampling valve is also arranged on the pipeline with the low-moisture delivery pump.
The pressure regulating pipeline at the top of the rectifying tower is communicated with the tail gas burning system through a pressure regulating valve bank, and the gas phase outlet of the gas-liquid separation tank is communicated with the tail gas burning system through the pressure regulating valve bank.
A boundary level meter is arranged on the dehydration tank.
The utility model provides a vacuum working solution dewatering device, beneficial effect as follows:
1. because the boiling point of water is lower than the boiling point of the working solution, the water is evaporated after heating, the pressure rises, and the pressure of the whole device is automatically controlled through the pressure regulating valve group, so that the manual regulation is avoided, the working strength is reduced, and the overpressure risk is also avoided.
2. The liquid level of the reflux tank is controlled in a cascade mode through the liquid level regulating valve group, manual regulation is avoided, working strength is reduced, and the risk of liquid fullness is also avoided.
3. After dehydration, the waste discharge amount of incineration is greatly reduced, and the economic benefit is obvious; the moisture condition in the dewatering tank can be observed through a level meter, and high moisture is directly sent to incineration without recycling value.
The utility model discloses work flow is simple and easy, and equipment investment cost is low, can solve extravagant big, the big problem of energy consumption, and the different boiling points of application material, condensation point realize the separating operation of moisture in the working solution through many times layered control, have reduced unnecessary extravagant and loss, and the required energy of entire system is less, and whole process is kept apart the non-polluted environment with the atmosphere.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a vacuum working fluid dehydration device, including rectifying column 1, rectifying column 1 top export communicates with hot water heat exchanger 2, hot water heat exchanger 2's outlet pipe communicates gas phase pipeline 18 and liquid phase pipeline 19 respectively, gas phase pipeline 18 communicates with gas-liquid separation jar 5 through warm water heat exchanger 4, liquid phase pipeline 19 communicates with reflux drum 3, reflux drum 3 communicates with the import of dehydration jar 8, the low moisture export of dehydration jar 8 communicates with rectifying column 1 through the pipeline of taking low moisture delivery pump 12, the high moisture export of dehydration jar 8 cooperatees with burning system through the pipeline of taking high moisture delivery pump 11 and first sample valve 9, rectifying column 1 bottom export communicates to the certified products storage tank through the pipeline of taking third sample valve 13 and tower cauldron pump 14 and first regulation valves 15 after.
The liquid phase outlet of the gas-liquid separation tank 5 is communicated with the reflux tank 3.
The bottom of the rectifying tower 1 is provided with a low-pressure steam half-pipe with a steam regulating valve group 16.
The reflux tank 3 is communicated with the inlet of a dewatering tank 8 through a pipeline with a liquid level regulating valve group 7.
The pipeline with the low-moisture delivery pump 12 is also provided with a second sampling valve 10.
The pressure regulating pipeline at the top of the rectifying tower 1 is communicated with the tail gas burning system through a pressure regulating valve group 6, and the gas phase outlet of the gas-liquid separation tank 5 is communicated with the tail gas burning system through the pressure regulating valve group 6.
The upper part of the rectifying tower 1 is provided with a thermometer 17.
A boundary level meter is arranged on the dehydration tank 8.
The working process of the utility model is as follows:
the method comprises the following steps that (1) water-containing working solution from a liquid ring vacuum device enters a rectifying tower 1, the working solution with extremely high moisture content is separated through rectification and enters a storage tank 3 through partial working solution condensation of a hot water heat exchanger 2, the working solution passes through a warm water heat exchanger 4 to a gas-liquid separation tank 5 again without condensation, partial working solution is recycled to a reflux tank 3, and the working solution without condensation passes through a pressure control regulating valve group 6 to be subjected to tail gas incineration harmless treatment;
the working solution recovered to the reflux tank 3 enters a dehydration tank 8 through the control of a liquid level regulating valve group 7 cascade stable liquid level 60%;
the working solution standing in the dehydration tank 8 is layered, then is observed through a level meter LLT and is sampled and analyzed through a first sampling valve 9, if the moisture content is high, the working solution is sent to incineration through a high moisture delivery pump 11, is observed through the level meter LLT again and is sampled and analyzed through a second sampling valve 10, and if the moisture content is low, the working solution returns to the rectifying tower 1 through a low moisture delivery pump 12 to continue circulation;
the tower kettle pump 14 circulates all the time, samples from the third sampling valve 13 at regular time for analysis, and sends the samples to a qualified product storage tank for later use through the first regulating valve group 15 if the moisture is qualified.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (7)
1. The utility model provides a vacuum working solution dewatering device, includes rectifying column (1), rectifying column (1) top export and hot water heat exchanger (2) intercommunication, its characterized in that: the outlet pipeline of hot water heat exchanger (2) communicates gas phase pipeline (18) and liquid phase pipeline (19) respectively, gas phase pipeline (18) are through warm water heat exchanger (4) and gas-liquid separation jar (5) intercommunication, liquid phase pipeline (19) and reflux drum (3) intercommunication, the import intercommunication of reflux drum (3) and dewatering tank (8), the low moisture export of dewatering tank (8) is through taking the pipeline and the rectifying column (1) intercommunication of low moisture delivery pump (12), the high moisture export of dewatering tank (8) is through taking the pipeline and the system of burning of high moisture delivery pump (11) and first sample valve (9) to cooperate, rectifying column (1) bottom export is through taking behind third sample valve (13) and tower cauldron pump (14) the pipeline and first regulating valve group (15) intercommunication to the certified products storage tank.
2. The vacuum working fluid dehydrating apparatus of claim 1, wherein: the liquid phase outlet of the gas-liquid separation tank (5) is communicated with the reflux tank (3).
3. The vacuum working fluid dehydrating apparatus of claim 1, wherein: the bottom of the rectifying tower (1) is provided with a low-pressure steam half-pipe with a steam regulating valve group (16).
4. The vacuum working fluid dehydrating apparatus of claim 1, wherein: the reflux tank (3) is communicated with the inlet of the dewatering tank (8) through a pipeline with a liquid level regulating valve group (7).
5. The vacuum working fluid dehydrating apparatus of claim 1, wherein: the pipeline with the low-moisture delivery pump (12) is also provided with a second sampling valve (10).
6. The vacuum working fluid dehydrating apparatus of claim 1, wherein: the pressure regulating pipeline at the top of the rectifying tower (1) is communicated with the tail gas burning system through a pressure regulating valve bank (6), and the gas phase outlet of the gas-liquid separation tank (5) is communicated with the tail gas burning system through the pressure regulating valve bank (6).
7. The vacuum working fluid dehydrating apparatus of claim 1, wherein: a boundary level meter is arranged on the dehydration tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467385.6U CN213609858U (en) | 2020-10-30 | 2020-10-30 | Vacuum working fluid dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467385.6U CN213609858U (en) | 2020-10-30 | 2020-10-30 | Vacuum working fluid dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213609858U true CN213609858U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022467385.6U Active CN213609858U (en) | 2020-10-30 | 2020-10-30 | Vacuum working fluid dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213609858U (en) |
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2020
- 2020-10-30 CN CN202022467385.6U patent/CN213609858U/en active Active
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