CN216395700U - Online auto-change over device of polypropylene device exhaust gas compressor entry filter - Google Patents
Online auto-change over device of polypropylene device exhaust gas compressor entry filter Download PDFInfo
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- CN216395700U CN216395700U CN202123019027.XU CN202123019027U CN216395700U CN 216395700 U CN216395700 U CN 216395700U CN 202123019027 U CN202123019027 U CN 202123019027U CN 216395700 U CN216395700 U CN 216395700U
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- admission line
- gas compressor
- filter
- tail gas
- polypropylene
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Abstract
The utility model relates to the technical field of polypropylene production devices, in particular to an online switching device for an inlet filter of a tail gas compressor of a polypropylene device. The utility model provides an online auto-change over device of polypropylene device tail gas compressor entry filter, the device include the gas buffer tank, set up in admission line between gas buffer tank and the tail gas compressor, admission line includes parallel connection's first admission line, second admission line, be provided with second filter and second switch valve on first admission line and the first switch valve, the second admission line. When any one of the filters is in fault or blocked, on-line switching can be carried out. The utility model aims to solve the problem that a tail gas compressor cannot continuously operate and prevent economic loss caused by the fact that an inlet filter cannot normally operate after being blocked.
Description
Technical Field
The utility model relates to the technical field of polypropylene production devices, in particular to an online switching device for an inlet filter of a tail gas compressor of a polypropylene device.
Background
Polypropylene is a novel coal chemical technology, and is a technology for producing polypropylene by taking propylene as a raw material and adding hydrogen and a catalyst. In the process, the C-5013 exhaust gas carries polypropylene powder, the inlet gas of the tail gas compressor carries a part of fine powder and unreacted triethyl aluminum, the primary inlet filter is easily blocked in the operation process of the tail gas recovery compressor, and the differential pressure of the filter exceeds the high reporting value of 0.04MPa after continuous operation for 48 hours. The filter needs to be stopped for cleaning after the differential pressure of the filter is high, the time for cleaning the filter needs 8 hours each time, and propylene cannot be recovered due to the fact that recovered gas is directly discharged to a torch when the filter is cleaned. The utility model develops an online switching device under the condition of no shutdown.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that a tail gas compressor cannot continuously operate and prevent economic loss caused by the fact that an inlet filter cannot normally operate after being blocked. In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an online auto-change over device of polypropylene device tail gas compressor entry filter, the device include the gas buffer tank, set up in admission line between gas buffer tank and the tail gas compressor, admission line includes parallel connection's first admission line, second admission line, be provided with second filter and second switch valve on first admission line and the first switch valve, the second admission line. On-line switching can be performed when any one of the filters fails or is clogged, and a compressor inlet protection filter (Y-5243) can be used to block the passage of particles when the upstream main filter fails. After the technical scheme of the utility model is adopted, the tail gas compressor can run for a long period, the annual recovery discharge propylene amount is 16000 tons, compared with the original device, the tail gas compressor can recover more propylene by 2300 tons and produce more polypropylene by 2100 tons, and the economic benefit is 1470 ten thousand.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained below with reference to the accompanying drawings.
The utility model provides an online auto-change over device of polypropylene device tail gas compressor entry filter, include gas buffer tank 1, set up in admission line between gas buffer tank 1 and the tail gas compressor 7, admission line includes parallel connection's first admission line 2, second admission line 6, be provided with second filter 10 and second switch valve 3 on first admission line 2 and first filter 9 and first switch valve 5, the second admission line 6. The air outlet ends of the first air inlet pipeline 2 and the second air inlet pipeline 6 are connected with a three-way flange pipe fitting 8. When any one of the filters is in fault or blocked, on-line switching can be carried out. The tail gas purification device further comprises a gas outlet pipeline 4 connected with a gas outlet of the tail gas compressor 7, and a filter is arranged on the gas outlet pipeline 4. The first switch valve 5 and the second switch valve 6 are both stop valves.
In conclusion, the utility model provides the online switching device which can be used under the condition of no shutdown, and the economic loss caused by long-time shutdown maintenance is avoided. After the technical scheme of the utility model is adopted, the tail gas compressor can run for a long period, the annual recovery discharge propylene amount is 16000 tons, compared with the original device, the tail gas compressor can recover more propylene by 2300 tons and produce more polypropylene by 2100 tons, and the economic benefit is 1470 ten thousand.
Claims (3)
1. The utility model provides an online auto-change over device of polypropylene device exhaust compressor entry filter which characterized in that: including gaseous buffer tank, set up in admission line between gaseous buffer tank and the tail gas compressor, admission line includes parallel connection's first admission line, second admission line, be provided with second filter and second switch valve on being provided with first filter and first switch valve on the first admission line, the second admission line.
2. The on-line switching device for the inlet filter of the tail gas compressor of the polypropylene device as claimed in claim 1, wherein: the tail gas compressor further comprises a gas outlet pipeline connected with a gas outlet of the tail gas compressor, and a filter is arranged on the gas outlet pipeline.
3. The on-line switching device for the inlet filter of the tail gas compressor of the polypropylene device as claimed in claim 1, wherein: and the first switch valve and the second switch valve are stop valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123019027.XU CN216395700U (en) | 2021-12-03 | 2021-12-03 | Online auto-change over device of polypropylene device exhaust gas compressor entry filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123019027.XU CN216395700U (en) | 2021-12-03 | 2021-12-03 | Online auto-change over device of polypropylene device exhaust gas compressor entry filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216395700U true CN216395700U (en) | 2022-04-29 |
Family
ID=81305403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123019027.XU Active CN216395700U (en) | 2021-12-03 | 2021-12-03 | Online auto-change over device of polypropylene device exhaust gas compressor entry filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216395700U (en) |
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2021
- 2021-12-03 CN CN202123019027.XU patent/CN216395700U/en active Active
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