CN217418243U - Waste water strip tower top material recovery system - Google Patents
Waste water strip tower top material recovery system Download PDFInfo
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- CN217418243U CN217418243U CN202221115481.7U CN202221115481U CN217418243U CN 217418243 U CN217418243 U CN 217418243U CN 202221115481 U CN202221115481 U CN 202221115481U CN 217418243 U CN217418243 U CN 217418243U
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Abstract
The utility model provides a waste water strip tower top material recovery system relates to recovery unit technical field, has solved the technical problem that the propane dehydrogenation system propylene device that exists lacks the equipment of recycling to propane and propylene in the waste water among the prior art. The device includes including waste water separator, gas collecting device and connecting tube, wherein, waste water separator's import is linked together with the waste water export of propane dehydrogenation system propylene device, waste water separator's gas outlet with gas collecting device's import passes through connecting tube is linked together, waste water separator can be with the gas and the sewage separation in the waste water and gaseous ability enters into in the gas collecting device.
Description
Technical Field
The utility model belongs to the technical field of recovery unit technique and specifically relates to a waste water strip tower top material recovery system is related to.
Background
The propane dehydrogenation propylene preparation device generates propylene and hydrogen through gas-phase propane reaction, waste water generated by the device is discharged into a waste water stripping tower through a product gas compressor, the waste water stripping tower separates the waste water, propane and propylene are separated and then burnt, and the propane and propylene gas is prevented from being directly discharged into air.
The applicant has found that the prior art has at least the following technical problems:
in the prior art, propane and propylene separated from a wastewater stripping tower are directly burnt, so that resource waste is caused, and equipment for recovering propane and propylene is lacked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste water stripper top material recovery system to solve the propane dehydrogenation system propylene device that exists among the prior art and lack the technical problem to the equipment of propane and propylene recovery recycle in the waste water. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of waste water strip tower top material recovery system, including waste water separator, gas collecting device and connecting tube, wherein, waste water separator's import is linked together with the waste water export of propane dehydrogenation system propylene device, waste water separator's gas outlet with gas collecting device's import is passed through the connecting tube is linked together, waste water separator can enter into gas and sewage separation and the gaseous ability in the waste water among the gas collecting device.
Optionally, the gas collecting device comprises a secondary inlet buffer tank, a silk screen demister and a product gas compressor, the silk screen demister is installed at an outlet of the secondary inlet buffer tank and is communicated with the secondary inlet buffer tank, an inlet of the secondary inlet buffer tank is communicated with a gas outlet of the wastewater separating device through the connecting pipeline, and the silk screen demister is communicated with the product gas compressor.
Optionally, a stop valve and a stop valve are arranged on the connecting pipeline, the stop valve is close to the wastewater separation device, and the stop valve is close to the gas collection device.
Optionally, still include reserve nitrogen gas jar, nitrogen gas pipeline and first control valve, reserve nitrogen gas jar with the connecting tube passes through the nitrogen gas pipeline is linked together, first control valve sets up on the nitrogen gas pipeline.
Optionally, the wastewater separation device comprises a wastewater stripping tower and an outlet liquid separation tank, an inlet of the wastewater stripping tower is communicated with a wastewater outlet of the propane dehydrogenation propylene preparation device, an outlet of the wastewater stripping tower is communicated with an inlet of the outlet liquid separation tank, and a gas outlet of the outlet liquid separation tank is communicated with an inlet of the gas collection device through the connecting pipeline.
Optionally, the system further comprises a heating furnace, a first conveying pipeline and a second control valve, wherein the heating furnace is communicated with the gas outlet of the wastewater separation device through the first conveying pipeline, and the second control valve is arranged on the first conveying pipeline.
Optionally, the system further comprises a flare, a second conveying pipeline and a third control valve, wherein the flare is communicated with the gas outlet of the wastewater separation device through the second conveying pipeline, and the third control valve is arranged on the second conveying pipeline.
Optionally, the sewage treatment device is further included, and a sewage outlet of the wastewater separation device is communicated with the sewage treatment device.
The utility model provides a pair of waste water strip tower top material recovery system, the waste water that propane dehydrogenation system propylene device produced lets in waste water separator, waste water separator can separate gas and the sewage in the waste water, gas after later separating can enter into gas collection device along the connecting tube, and gas collection device can compress entering into gas, and then convenient the recycling, the propane dehydrogenation system propylene device who has solved and exists among the prior art lacks the technical problem to the equipment of propane and propylene recovery in the waste water recycling.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow diagram of a wastewater stripper overhead material recovery system provided by an embodiment of the present invention;
in figure 1, a secondary inlet buffer tank; 2. a wire mesh demister; 3. a product gas compressor; 4. a wastewater stripper; 5. an outlet liquid separation tank; 6. a sewage treatment device; 7. a device for preparing propylene by propane dehydrogenation; 8. a shut-off valve; 9. a stop valve; 10. connecting a pipeline; 20. a standby nitrogen tank; 30. a nitrogen gas pipeline; 40. a first control valve; 50. heating furnace; 60. a first delivery conduit; 70. a second control valve; 80. a torch; 90. a second delivery conduit; 100. and a third control valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be understood that the terms "mounted", "connected" and "connected", unless expressly specified or limited otherwise, are intended to be interpreted broadly, as meaning either a fixed connection or a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Example 1:
the utility model provides a waste water strip tower top material recovery system, including waste water separator, gas collecting device and connecting tube 10, wherein, waste water separator's import and propane dehydrogenation system propylene device 7's waste water export are linked together, and waste water separator's gas outlet and gas collecting device's import are linked together through connecting tube 10, and waste water separator can enter into gas collecting device with gas and the water separation and gas in the waste water. The utility model provides a pair of waste water strip tower top material recovery system, the waste water that propane dehydrogenation system propylene device 7 produced lets in waste water separator, waste water separator can separate gas and the sewage in the waste water, gas after later separating can enter into gas collection device along connecting tube 10, and gas collection device can compress entering into gas, and then convenient the recycling, the technical problem of the propane dehydrogenation system propylene device that exists lacks the equipment of recycling to propane and propylene in the waste water among the prior art is solved.
Example 2:
as an optional embodiment, the gas collecting device comprises a secondary inlet buffer tank 1, a silk screen demister 2 and a product gas compressor 3, the silk screen demister 2 is installed at the outlet of the secondary inlet buffer tank 1, the silk screen demister 2 is communicated with the secondary inlet buffer tank 1, the inlet of the secondary inlet buffer tank 1 is communicated with the gas outlet of the wastewater separating device through a connecting pipe 10, and the silk screen demister 2 is communicated with the product gas compressor 3. The gas (mainly be propane and propylene) after the separation enters into second grade entry buffer tank 1 along connecting tube 10 earlier, and second grade entry buffer tank 1 compresses the gas in it, and the gas after the compression passes through silk screen demister 2 and then enters into product gas compressor 3, remains to use. The wire mesh demister 2 can remove mist given in the compressed gas.
As an alternative embodiment, a shut-off valve 8 and a shut-off valve 9 are arranged on the connecting pipe 10, the shut-off valve 8 is close to the waste water separation device, and the shut-off valve 9 is close to the gas collection device. The stop valve 8 and the stop valve 9 are used for controlling the on-off of the connecting pipeline 10, and when the stop valve 8 and the stop valve are all opened, the separated gas can enter the secondary inlet buffer tank 1 along the connecting pipeline 10.
As an optional embodiment, the device further comprises a standby nitrogen tank 20, a nitrogen pipeline 30 and a first control valve 40, wherein the standby nitrogen tank 20 is communicated with the connecting pipeline 10 through the nitrogen pipeline 30, and the first control valve 40 is arranged on the nitrogen pipeline 30. When the device is abnormal, the shut-off valve 8 needs to be closed, and the shut-off valve 9 and the first control valve 40 need to be opened, so that the nitrogen in the standby nitrogen tank 20 enters the secondary inlet buffer tank 1 along the nitrogen pipeline 30.
Example 3:
as an alternative embodiment, the waste water separation device comprises a waste water stripping tower 4 and an outlet liquid separation tank 5, wherein an inlet of the waste water stripping tower 4 is communicated with a waste water outlet of the propane dehydrogenation propylene preparation device 7, an outlet of the waste water stripping tower 4 is communicated with an inlet of the outlet liquid separation tank 5, and a gas outlet of the outlet liquid separation tank 5 is communicated with an inlet of the gas collection device through a connecting pipeline 10. Waste water stripper 4 can carry out primary separation to waste water for the steam that contains propane and propylene enters into export branch fluid reservoir 5, and export branch fluid reservoir 5 can separate the lime set to steam and go out the back, makes dry gas that contains propane and propylene enter into gas collection device along connecting tube 10.
Example 4:
as an optional embodiment, the system further comprises a heating furnace 50, a first conveying pipeline 60 and a second control valve 70, wherein the heating furnace 50 is communicated with the gas outlet of the wastewater separation device through the first conveying pipeline 60, and the second control valve 70 is arranged on the first conveying pipeline 60. The heating furnace 50 may burn off gas containing propane and propylene.
As an alternative embodiment, a flare 80, a second transfer pipe 90 and a third control valve 100 are further included, the flare 80 and the gas outlet of the wastewater separation device are communicated through the second transfer pipe 90, the third control valve 100 is provided on the second transfer pipe 90, and the flare 80 can burn the gas containing propane and propylene. When the gas collecting device is not operated or is abnormal, the separated gas can be introduced into the heating furnace 50 or the flare 80 along the first conveying pipeline 60 or the second conveying pipeline 90, and the gas is ignited to be disposed.
As an optional embodiment, the sewage treatment device 6 is further included, and the sewage outlet of the wastewater separation device is communicated with the sewage treatment device 6. The sewage outlets of the wastewater stripping tower 4 and the outlet liquid separation tank 5 are communicated with a sewage treatment device 6.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A top material recovery system of a wastewater stripping tower is characterized by comprising a wastewater separation device, a gas collection device and a connecting pipeline (10), wherein,
the inlet of the wastewater separation device is communicated with the wastewater outlet of the propane dehydrogenation propylene preparation device (7), the gas outlet of the wastewater separation device is communicated with the inlet of the gas collection device through the connecting pipeline (10), and the wastewater separation device can separate gas and sewage in wastewater and enable the gas to enter the gas collection device.
2. The wastewater stripper overhead material recovery system of claim 1, wherein the gas collecting device comprises a secondary inlet buffer tank (1), a wire mesh demister (2) and a product gas compressor (3), the wire mesh demister (2) is installed at the outlet of the secondary inlet buffer tank (1) and the wire mesh demister (2) is communicated with the secondary inlet buffer tank (1), the inlet of the secondary inlet buffer tank (1) is communicated with the gas outlet of the wastewater separating device through the connecting pipe (10), and the wire mesh demister (2) is communicated with the product gas compressor (3).
3. Waste water stripper top material recovery system according to claim 1, characterized in that a shut-off valve (8) and a shut-off valve (9) are provided on the connecting pipe (10), the shut-off valve (8) being close to the waste water separating means, the shut-off valve (9) being close to the gas collecting means.
4. A wastewater stripper overhead material recovery system according to claim 1, further comprising a standby nitrogen tank (20), a nitrogen pipe (30) and a first control valve (40), the standby nitrogen tank (20) being in communication with the connection pipe (10) through the nitrogen pipe (30), the first control valve (40) being provided on the nitrogen pipe (30).
5. The wastewater stripper overhead material recovery system according to claim 1, wherein the wastewater separation device comprises a wastewater stripper (4) and an outlet liquid separation tank (5), an inlet of the wastewater stripper (4) is communicated with a wastewater outlet of a propane dehydrogenation propylene production device (7), an outlet of the wastewater stripper (4) is communicated with an inlet of the outlet liquid separation tank (5), and a gas outlet of the outlet liquid separation tank (5) is communicated with an inlet of the gas collection device through the connecting pipeline (10).
6. The wastewater stripper overhead material recovery system of claim 1, further comprising a furnace (50), a first transfer line (60), and a second control valve (70), wherein the furnace (50) and the gas outlet of the wastewater separation device are in communication through the first transfer line (60), and the second control valve (70) is disposed on the first transfer line (60).
7. The wastewater stripper overhead material recovery system of claim 1, further comprising a flare (80), a second transfer conduit (90), and a third control valve (100), the flare (80) and the gas outlet of the wastewater separation device being in communication through the second transfer conduit (90), the third control valve (100) being disposed on the second transfer conduit (90).
8. A wastewater stripper overhead material recovery system as claimed in claim 1, further comprising a wastewater treatment plant (6), the wastewater outlet of the wastewater separation plant being in communication with the wastewater treatment plant (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221115481.7U CN217418243U (en) | 2022-04-29 | 2022-04-29 | Waste water strip tower top material recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221115481.7U CN217418243U (en) | 2022-04-29 | 2022-04-29 | Waste water strip tower top material recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217418243U true CN217418243U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221115481.7U Active CN217418243U (en) | 2022-04-29 | 2022-04-29 | Waste water strip tower top material recovery system |
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| Country | Link |
|---|---|
| CN (1) | CN217418243U (en) |
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2022
- 2022-04-29 CN CN202221115481.7U patent/CN217418243U/en active Active
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