CN217329393U - Security nitrogen supply device for Texaco gasifier - Google Patents
Security nitrogen supply device for Texaco gasifier Download PDFInfo
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- CN217329393U CN217329393U CN202123062184.9U CN202123062184U CN217329393U CN 217329393 U CN217329393 U CN 217329393U CN 202123062184 U CN202123062184 U CN 202123062184U CN 217329393 U CN217329393 U CN 217329393U
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- nitrogen
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Abstract
The utility model relates to a coal system methyl alcohol technical field, concretely relates to Texaco gasifier security personnel nitrogen gas feeding mechanism, including liquid nitrogen storage tank, high-pressure nitrogen gas storage tank and pressure relief device, the nitrogen gas import intercommunication of pipeline A and high-pressure nitrogen gas storage tank is passed through in the liquid nitrogen export of liquid nitrogen storage tank, be provided with liquid nitrogen pump A and vaporizer A on the pipeline A, the nitrogen gas export of high-pressure nitrogen gas storage tank and pressure relief device's high pressure import intercommunication, pressure relief device's low pressure export can communicate with Texaco gasifier's security personnel nitrogen gas pipe network. The utility model discloses can realize the stable supply of high-pressure nitrogen gas, reducible high-pressure nitrogen gas punching press number of times and system parking number of times realize that gasifier safety and stability opens the parking, are favorable to the long period safety and stability operation and the personal safety of assurance system.
Description
Technical Field
The utility model relates to a coal system methyl alcohol technical field, concretely relates to Texaco gasifier security personnel nitrogen gas feeding mechanism.
Background
The coal-to-methanol process refers to a process for producing methanol by taking coal as a raw material, and Texaco coal water slurry pressure gasification is an important technology in the process for producing methanol by coal. The normal and stable supply of security nitrogen in the start-up and shutdown processes of the Texaco gasifier is ensured, and the method has important significance for the smooth production of the methanol prepared from the coal.
At present, nitrogen required by the Texaco gasifier of the coal-to-methanol system in the starting and stopping processes is generally provided by a diaphragm nitrogen press, the equipment has higher fault maintenance cost, the pressure raising rate of the nitrogen in the high-pressure nitrogen storage tank is slower, and the highest pressure of the high-pressure nitrogen still cannot meet the requirements of the system in the starting and stopping processes. If the diaphragm nitrogen compressor is aged and fails frequently, the pressure of the high-pressure nitrogen storage tank is lower than a factory control index, and hidden production danger is caused; once the two gasification furnaces and the three gasification furnaces jump, the high-pressure nitrogen pressure is insufficient, so that the production is passive.
SUMMERY OF THE UTILITY MODEL
High to diaphragm nitrogen press maintenance cost, the trouble easily leads to the technical problem of potential safety hazard, the utility model provides a Texaco gasifier security protection nitrogen gas feeding mechanism realizes the stable supply of high-pressure nitrogen gas, and reducible high-pressure nitrogen gas punching press number of times and system parking number of times realize that gasifier safety and stability opens the parking, are favorable to the long period safety and stability operation and the personnel safety of assurance system.
The utility model provides a Texaco gasifier security personnel nitrogen gas feeding mechanism, including liquid nitrogen storage tank, high-pressure nitrogen gas storage tank and pressure relief device, the nitrogen gas import intercommunication of pipeline A and high-pressure nitrogen gas storage tank is passed through in the liquid nitrogen export of liquid nitrogen storage tank, be provided with liquid nitrogen pump A and vaporizer A on the pipeline A, the nitrogen gas export of high-pressure nitrogen gas storage tank and pressure relief device's high pressure import intercommunication, pressure relief device's low pressure export can communicate with Texaco gasifier's security personnel nitrogen gas pipe network.
Further, a liquid nitrogen outlet of the liquid nitrogen storage tank is communicated with the high-pressure nitrogen storage tank through a pipeline B, and a liquid nitrogen pump B and a vaporizer B are arranged on the pipeline B. When the pipeline A and the pipeline B are opened and standby during use, the pipeline B can be used for replacing the pipeline A to work when a liquid nitrogen pump A or a vaporizer A on the pipeline A breaks down.
And the liquid nitrogen pump A, the liquid nitrogen pump B, the vaporizer A, the vaporizer B and the pressure reducing device are electrically connected and controlled through the DCS system. The operation state of each device is introduced into the DCS system, so that remote monitoring is conveniently realized.
Further, a liquid nitrogen inlet of the liquid nitrogen storage tank is communicated with the liquid nitrogen source through a filling pipeline, and a flow meter is arranged on the filling pipeline. And the liquid nitrogen filling amount of the liquid nitrogen storage tank is confirmed when the filling is convenient.
Further, the pressure reducing device is a pressure reducing valve.
The beneficial effects of the utility model reside in that:
the utility model discloses replace diaphragm nitrogen press with liquid nitrogen pump, vaporizer, high-pressure nitrogen ware storage tank and pressure relief device and carry out Texaco gasifier security personnel nitrogen gas supply, reform transform simple and easy, cost of maintenance is low, can avoid the not enough of nitrogen pressure low, shortens nitrogen gas stamping time during the start-stop, guarantees the safety and stability operation of gasifier.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the connection relationship in embodiment 1.
In the figure, 1-liquid nitrogen storage tank, 2-liquid nitrogen pump A, 3-vaporizer A, 4-liquid nitrogen pump B, 5-vaporizer B, 6-high pressure nitrogen storage tank, 7-pressure reducing device, 8-total liquid nitrogen storage tank.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1
A Texaco gasifier security protection nitrogen supply device comprises a liquid nitrogen storage tank 1, a high-pressure nitrogen storage tank 6, a pressure reducing device 7 and a DCS system, wherein a liquid nitrogen inlet of the liquid nitrogen storage tank 1 is communicated with a total liquid nitrogen storage tank 8 through a filling pipeline, and the volume of the total liquid nitrogen storage tank 8 is 300m 3 The volume of the liquid nitrogen storage tank 1 is 10m 3 The filling pipeline is provided with a flowmeter, a liquid nitrogen outlet of the liquid nitrogen storage tank 1 is respectively communicated with a nitrogen inlet of the high-pressure nitrogen storage tank 6 through a pipeline A and a pipeline B, the pipeline A is provided with a liquid nitrogen pump A2 and a vaporizer A3, the pipeline B is provided with a liquid nitrogen pump B4 and a vaporizer B5, a nitrogen outlet of the high-pressure nitrogen storage tank 6 is communicated with a high-pressure inlet of the pressure reducing device 7, a low-pressure outlet of the pressure reducing device 7 can be communicated with a security nitrogen pipe network of the Texaco gasifier, the liquid nitrogen pump A2, the vaporizer A3, the liquid nitrogen pump B4, the vaporizer B5 and the pressure reducing device 7 are all electrically connected and controlled through a DCS (distributed control system), and the pressure reducing device 7 is a pressure reducing deviceAnd (6) pressing a valve.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention.
Claims (6)
1. The safety nitrogen supply device of the Texaco gasifier is characterized by comprising a liquid nitrogen storage tank, a high-pressure nitrogen storage tank and a pressure reducing device, wherein a liquid nitrogen outlet of the liquid nitrogen storage tank is communicated with a nitrogen inlet of the high-pressure nitrogen storage tank through a pipeline A, a liquid nitrogen pump A and a vaporizer A are arranged on the pipeline A, a nitrogen outlet of the high-pressure nitrogen storage tank is communicated with a high-pressure inlet of the pressure reducing device, and a low-pressure outlet of the pressure reducing device can be communicated with a safety nitrogen pipe network of the Texaco gasifier.
2. The Texaco gasifier security nitrogen supply device as claimed in claim 1, further comprising a DCS system, wherein the liquid nitrogen pump A, the vaporizer A and the pressure reduction device are electrically connected and controlled through the DCS system.
3. The custard gasifier security nitrogen supply device as claimed in claim 1, wherein the liquid nitrogen outlet of the liquid nitrogen storage tank is further communicated with a high-pressure nitrogen storage tank through a pipeline B, and a liquid nitrogen pump B and a vaporizer B are arranged on the pipeline B.
4. The Texaco gasifier security nitrogen supply device as claimed in claim 3, further comprising a DCS system, wherein the liquid nitrogen pump A, the liquid nitrogen pump B, the vaporizer A, the vaporizer B and the pressure reduction device are all electrically connected and controlled through the DCS system.
5. The custard gasifier security nitrogen supply device as claimed in claim 1, wherein a liquid nitrogen inlet of the liquid nitrogen storage tank is communicated with a liquid nitrogen source through a filling pipeline, and a flow meter is arranged on the filling pipeline.
6. The Texaco gasifier security nitrogen supply device as claimed in claim 1, wherein the pressure reducing device is a pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123062184.9U CN217329393U (en) | 2021-12-07 | 2021-12-07 | Security nitrogen supply device for Texaco gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123062184.9U CN217329393U (en) | 2021-12-07 | 2021-12-07 | Security nitrogen supply device for Texaco gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217329393U true CN217329393U (en) | 2022-08-30 |
Family
ID=82944547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123062184.9U Active CN217329393U (en) | 2021-12-07 | 2021-12-07 | Security nitrogen supply device for Texaco gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217329393U (en) |
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2021
- 2021-12-07 CN CN202123062184.9U patent/CN217329393U/en active Active
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