CN212293461U - Protection system of synthesis gas dewatering device - Google Patents
Protection system of synthesis gas dewatering device Download PDFInfo
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- CN212293461U CN212293461U CN202020714295.XU CN202020714295U CN212293461U CN 212293461 U CN212293461 U CN 212293461U CN 202020714295 U CN202020714295 U CN 202020714295U CN 212293461 U CN212293461 U CN 212293461U
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Abstract
The utility model discloses a syngas dewatering device's protection system, including syngas dewatering device, its characterized in that: the gas inlet pipeline of the synthesis gas dehydration device is connected with a gas supply device, a first valve is arranged at the gas inlet of the synthesis gas dehydration device, a main pipeline is connected with the gas outlet of the synthesis gas dehydration device and is connected to a user, a first pressure regulating valve is arranged at the gas outlet of the synthesis gas dehydration device, a first branch pipeline and a second branch pipeline are arranged on the main pipeline, the first branch pipeline is connected with a first emptying torch, the second branch pipeline is connected to a second emptying torch, a second pressure regulating valve is arranged on the first branch pipeline, and a safety valve is arranged on the second branch pipeline. The beneficial effects of the utility model include: the influence of the fluctuation of a methanol device system and the fluctuation of the gas consumption of downstream users on the dehydration device and the mutual influence among the dehydration device and the dehydration device are reduced, the synthesis gas dehydration device is protected, and the occurrence of accidents is reduced.
Description
Technical Field
The utility model relates to a gaseous safety transport field, concretely relates to synthetic gas dewatering device's protection system.
Background
The synthesis gas from the methanol unit is dehydrated by a TSA (adsorptive) dehydration unit and then sent to downstream users. When the system pressure of the methanol device fluctuates in overpressure or the gas consumption of downstream users drops greatly, the normal and stable operation of the TSA dehydration device is affected, and even the methanol device is stopped or the downstream users stop using the gas.
Disclosure of Invention
To the weak point among the above-mentioned prior art, the utility model provides a syngas dewatering device's protection system, its influence and the influence of each other between them that reduces the undulant and downstream user of methyl alcohol device system and use tolerance to dewatering device prevents the occurence of failure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a protection system of synthetic gas dewatering device, includes synthetic gas dewatering device, its characterized in that: the gas inlet pipeline of the synthesis gas dehydration device is connected with a gas supply device, a first valve is arranged at a gas inlet of the synthesis gas dehydration device, a main pipeline is connected with a gas outlet of the synthesis gas dehydration device and is connected to a user, a first pressure regulating valve is arranged at a gas outlet of the synthesis gas dehydration device, a first branch pipeline and a second branch pipeline are arranged on the main pipeline, the first branch pipeline is connected with a first emptying torch, the second branch pipeline is connected to a second emptying torch, a second pressure regulating valve is arranged on the first branch pipeline, a safety valve is arranged on the second branch pipeline, and pressure sensors of the first pressure regulating valve and the second pressure regulating valve are arranged on the main pipeline between the first pressure regulating valve and the first branch pipeline.
Further, still be provided with first gate valve between synthetic gas dewatering device and the gas feeder on the intake pipeline, first gate valve department is provided with 8 words blind slabs.
Further, a second gate valve is arranged on a main pipeline between the second branch pipeline and the user, and an 8-shaped blind plate is arranged at the second gate valve.
Furthermore, a pilot valve used for low-point liquid drainage or temporary nitrogen replacement gas transmission pipe network connection is arranged on the main pipeline.
The beneficial effects of the utility model include: the influence of the fluctuation of a methanol device system and the fluctuation of the gas consumption of downstream users on the dehydration device and the mutual influence among the dehydration device and the dehydration device are reduced, the synthesis gas dehydration device is protected, and the occurrence of accidents is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
A system for protecting a synthesis gas dehydration unit as shown in fig. 1, comprising a synthesis gas dehydration unit, in this embodiment a TSA (adsorption type) dehydration unit, whose inlet line is connected to a gas supply unit, such as a methanol unit. A first valve 1 is arranged at the air inlet of the synthesis gas dehydration device 1, and the air outlet of the synthesis gas dehydration device is connected with a main pipeline which is connected to a user. The first valve 1 is an electromagnetic valve, and when the gas supply device is in linkage shutdown under abnormal working conditions, the electromagnetic valve is immediately closed to cut off the synthesis gas, so that the TSA dehydration device, the gas transmission pipe network and downstream users are protected. The gas outlet of the synthesis gas dehydration device is provided with a first pressure regulating valve 2, the main pipeline is provided with a first branch pipeline and a second branch pipeline, the first branch pipeline is connected with a first emptying torch, the second branch pipeline is connected to a second emptying torch, the first branch pipeline is provided with a second pressure regulating valve 3, the second branch pipeline is provided with a safety valve 4, and pressure sensors of the first pressure regulating valve 2 and the second pressure regulating valve 3 are arranged on the main pipeline between the first pressure regulating valve 2 and the first branch pipeline. When the air consumption of a downstream user fluctuates in a small range, the first pressure regulating valve 2 automatically regulates to stabilize fluctuation; when the gas consumption of a downstream user is greatly reduced, the second pressure regulating valve 3 assists the first pressure regulating valve 2 to regulate, and redundant synthesis gas is discharged to a torch, so that the TSA dehydration device and a conveying pipe network are protected from overpressure; when the gas consumption of a downstream user is greatly reduced or is suddenly interrupted, the first pressure regulating valve 2 is immediately closed, the second pressure regulating valve 3 is opened and emptied to a torch, the safety valve 4 jumps, the TSA dehydration device and the conveying pipeline are protected from exceeding the set pressure of the safety valve, and process safety accidents caused by overpressure of the system are guaranteed.
Still be provided with first gate valve 5 on the intake pipeline between synthetic gas dewatering device and the air feeder, 5 departments of first gate valve are provided with 8 words blind slabs. And a second gate valve 6 is arranged on a main pipeline between the second branch pipeline and the user, and an 8-shaped blind plate is arranged at the second gate valve 6. The method is used for cutting off and isolating the connection between the methanol device system and the TSA dehydration device, the gas transmission pipe network and downstream users when the synthesis gas is not externally supplied with dehydrated synthesis gas.
And a pilot valve 7 for low-point liquid drainage or temporary nitrogen replacement gas transmission pipe network connection is arranged on the main pipeline.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (4)
1. The utility model provides a protection system of synthetic gas dewatering device, includes synthetic gas dewatering device, its characterized in that: the air inlet pipeline of the synthesis gas dehydration device is connected with an air supply device, a first valve (1) is arranged at the air inlet of the synthesis gas dehydration device, the air outlet of the synthesis gas dehydration device is connected with a main pipeline, the main pipeline is connected to a user, a first pressure regulating valve (2) is arranged at the gas outlet of the synthesis gas dehydration device, a first branch pipeline and a second branch pipeline are arranged on the main pipeline, the first branch pipeline is connected with a first emptying torch, the second branch pipeline is connected to a second emptying torch, a second pressure regulating valve (3) is arranged on the first branch pipeline, and a safety valve (4) is arranged on the second branch pipeline, and pressure sensors of the first pressure regulating valve (2) and the second pressure regulating valve (3) are arranged on a main pipeline between the first pressure regulating valve (2) and the first branch pipeline.
2. The protection system of a syngas dehydration engine of claim 1 characterized in that: still be provided with first gate valve (5) on the intake pipeline between synthetic gas dewatering device and the air feeder, first gate valve (5) department is provided with 8 words blind slabs.
3. The protection system of a syngas dehydration engine of claim 1 characterized in that: and a second gate valve (6) is arranged on a main pipeline between the second branch pipeline and the user, and an 8-shaped blind plate is arranged at the second gate valve (6).
4. The protection system of a syngas dehydration engine of claim 1 characterized in that: and a pilot valve (7) for low-point liquid drainage or temporary nitrogen replacement gas transmission pipe network connection is arranged on the main pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020714295.XU CN212293461U (en) | 2020-04-30 | 2020-04-30 | Protection system of synthesis gas dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020714295.XU CN212293461U (en) | 2020-04-30 | 2020-04-30 | Protection system of synthesis gas dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212293461U true CN212293461U (en) | 2021-01-05 |
Family
ID=73964041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020714295.XU Active CN212293461U (en) | 2020-04-30 | 2020-04-30 | Protection system of synthesis gas dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212293461U (en) |
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2020
- 2020-04-30 CN CN202020714295.XU patent/CN212293461U/en active Active
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