On-line time development of major hazardous source substances of devices of refining enterprises
阅读说明：本技术 炼化企业各装置重大危险源物质在线时间研制 (On-line time development of major hazardous source substances of devices of refining enterprises ) 是由 谢雷振 张健 贾斌成 方文文 王丽靖 辛少辉 王雪 于 2021-08-12 设计创作，主要内容包括：本发明公开了炼化企业各装置重大危险源物质在线时间研制,包括制氢装置内设备及管线中天然气和氢气的数量的计算：使用公式P-(0)V-(0)/T-(0)=P-(1)V-(1)/T-(1)估算制氢装置内设备及管线中天然气和氢气的数量,其中：V-(0)-标准状况下的体积；P-(0)-标准状况下压力；T-(0)-标准状况下温度；P-(1)-介质在设备、管线中压力；V-(1)-介质在设备、管线中体积；T-(1)-介质在设备、管线中温度；通过以上公式变形,得出V-(0)=P-(1)V-(1)T-(0)/P-(0)T-(1)；标准大气压,0℃下,天然气的密度为0.717kg/m3；标准大气压,0℃下,氢气的密度为0.0899kg/m3,进一步地,天然气转化炉前设备、管线中的介质按照天然气核算,进一步地,天然气转化炉后设备、管线中的介质按照氢气核算。提高了工作效率,在实际的重大危险源计算中具有较大的实用意义。(The invention discloses online time development of major hazardous source substances of various devices of a refinery enterprise, which comprises the following steps of calculating the quantity of natural gas and hydrogen in equipment and pipelines in a hydrogen production device: using the formula P 0 V 0 /T 0 =P 1 V 1 /T 1 Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein: v 0 -volume under standard conditions; p 0 -pressure under standard conditions; t is 0 -temperature under standard conditions; p 1 -pressure of the medium in the device, the pipeline; v 1 -volume of medium in the device, pipeline; t is 1 -temperature of the medium in the apparatus, pipeline; by transforming the above formula, V is obtained 0 =P 1 V 1 T 0 /P 0 T 1 (ii) a The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃; standard atmospheric pressure, 0 ℃ Hydrogen density 0.0899kg/m3, furtherAnd further, the media in the equipment and the pipeline behind the natural gas converter are calculated according to hydrogen. The working efficiency is improved, and the method has great practical significance in actual calculation of major hazard sources.)
1. The method is characterized by comprising the following steps of carrying out online time development on major hazardous source substances of each device of a refining enterprise, wherein the online time development comprises the following steps of calculating the quantity of natural gas and hydrogen in equipment and pipelines in a hydrogen production device:
using the formula P0V0/T0=P1V1/T1Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein:
V0-volume under standard conditions;
P0-pressure under standard conditions;
T0standard formThe temperature under conditions;
P1-pressure of the medium in the device, the pipeline;
V1-volume of medium in the device, pipeline;
T1-temperature of the medium in the apparatus, pipeline;
by transforming the above formula, V is obtained0=P1V1T0/P0T1；
The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃;
the density of hydrogen at 0 ℃ under standard atmospheric pressure was 0.0899kg/m 3.
2. The on-line time development of major hazardous source materials of each unit of an refining enterprise according to claim 1, characterized in that: and (4) accounting the media in the equipment and the pipeline in front of the natural gas converter according to the natural gas.
3. The on-line time development of major hazardous source materials of each unit of an refining enterprise according to claim 1, characterized in that: and (4) accounting the media in the equipment and the pipeline behind the natural gas converter according to the hydrogen.
Technical Field
The invention relates to the technical field of refining and chemical enterprises, in particular to online time development of major hazardous source substances of devices of the refining and chemical enterprises.
Background
The new safe production method requires the grading of enterprises with major dangerous sources, which requires the calculation of the inventory of the major dangerous source materials. And the process of each device in the refining enterprise is complex, and the on-line calculation of the major hazard source medium is difficult. At present, two methods are used, one method is a statistical method, namely the volume of a medium in each tower, container and pipeline is calculated to obtain the quantity of a substance, and the statistical method is very complicated, long in time consumption and large in workload. Alternatively, the volume of each device is estimated with less accuracy. Therefore, it is necessary to find a simple and accurate method for calculating the inventory of the important dangerous source materials of each device of the refining enterprise.
Therefore, the online time development of the major hazardous source substances of each device of the refining enterprise is provided.
Disclosure of Invention
The invention mainly aims to provide the online time development of major hazardous source substances of each device of a refining enterprise, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the online time development of the major hazardous source substances of each device of the refining enterprise comprises the calculation of the quantity of the natural gas and the hydrogen in the equipment and the pipeline in the hydrogen production device:
using the formula P0V0/T0=P1V1/T1Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein:
V0-volume under standard conditions;
P0-pressure under standard conditions;
T0-temperature under standard conditions;
P1-pressure of the medium in the device, the pipeline;
V1-volume of medium in the device, pipeline;
T1-temperature of the medium in the apparatus, pipeline;
by transforming the above formula, V is obtained0=P1V1T0/P0T1；
The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃;
the density of hydrogen at 0 ℃ under standard atmospheric pressure was 0.0899kg/m 3.
Furthermore, the medium in the equipment and pipelines in front of the natural gas converter is calculated according to the natural gas.
Furthermore, the medium in the equipment and pipelines behind the natural gas converter is calculated according to the hydrogen.
Compared with the prior art, the invention has the following beneficial effects: the calculation process of the major hazard source of each traditional device is very complicated, the workload is large, the time consumption is long, and the calculation is easy to make mistakes due to more steps, so that the labor and the time are wasted. The new calculation verification method has the advantages of simple and accurate calculation process, reduction of calculation time and calculation steps, great improvement of working efficiency and great practical significance in actual calculation of major hazard sources.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
A big data military industry enterprise intelligent management platform comprises the following steps of calculating the quantity of natural gas and hydrogen in equipment and pipelines in a hydrogen production device:
using the formula P0V0/T0=P1V1/T1Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein:
V0-volume under standard conditions;
P0-signQuasi-situation down force;
T0-temperature under standard conditions;
P1-pressure of the medium in the device, the pipeline;
V1-volume of medium in the device, pipeline;
T1-temperature of the medium in the apparatus, pipeline;
by transforming the above formula, V is obtained0=P1V1T0/P0T1；
The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃;
the density of hydrogen at 0 ℃ under standard atmospheric pressure was 0.0899kg/m 3.
Wherein, the medium in the front equipment and the pipeline of the natural gas converter is calculated according to the natural gas.
Wherein, the media in the devices and pipelines behind the natural gas converter are calculated according to hydrogen.
By increasing the pressure of the medium at the inlet end of the device, a peak value appears on the inlet display, and therefore a peak value also appears on the outlet display, the time difference between the two peak values is the online stock time of the medium in the device, and the online time of the device is verified by analogy.
Experimental data of atmospheric and vacuum distillation unit
The average value obtained from the above data sets of the online stock time test data was 10.022 min.
Example two
A big data military industry enterprise intelligent management platform comprises the following steps of calculating the quantity of natural gas and hydrogen in equipment and pipelines in a hydrogen production device:
using the formula P0V0/T0=P1V1/T1Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein:
V0-volume under standard conditions;
P0-pressure under standard conditions;
T0-temperature under standard conditions;
P1-pressure of the medium in the device, the pipeline;
V1-volume of medium in the device, pipeline;
T1-temperature of the medium in the apparatus, pipeline;
by transforming the above formula, V is obtained0=P1V1T0/P0T1；
The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃;
the density of hydrogen at 0 ℃ under standard atmospheric pressure was 0.0899kg/m 3.
Wherein, the medium in the front equipment and the pipeline of the natural gas converter is calculated according to the natural gas.
Wherein, the media in the devices and pipelines behind the natural gas converter are calculated according to hydrogen.
By increasing the pressure of the medium at the inlet end of the device, a peak value appears on the inlet display, and therefore a peak value also appears on the outlet display, the time difference between the two peak values is the online stock time of the medium in the device, and the online time of the device is verified by analogy.
Catalytic unit experimental data
The average value obtained from the above data sets of the online stock time test data was 10.026 min.
EXAMPLE III
A big data military industry enterprise intelligent management platform comprises the following steps of calculating the quantity of natural gas and hydrogen in equipment and pipelines in a hydrogen production device:
using the formula P0V0/T0=P1V1/T1Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein:
V0body under standard conditionsAccumulating;
P0-pressure under standard conditions;
T0-temperature under standard conditions;
P1-pressure of the medium in the device, the pipeline;
V1-volume of medium in the device, pipeline;
T1-temperature of the medium in the apparatus, pipeline;
by transforming the above formula, V is obtained0=P1V1T0/P0T1；
The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃;
the density of hydrogen at 0 ℃ under standard atmospheric pressure was 0.0899kg/m 3.
Wherein, the medium in the front equipment and the pipeline of the natural gas converter is calculated according to the natural gas.
Wherein, the media in the devices and pipelines behind the natural gas converter are calculated according to hydrogen.
By increasing the pressure of the medium at the inlet end of the device, a peak value appears on the inlet display, and therefore a peak value also appears on the outlet display, the time difference between the two peak values is the online stock time of the medium in the device, and the online time of the device is verified by analogy.
Experimental data of coking plant
Date of experiment
2021.4.3
2021.4.7
2021.4.9
2021.4.10
2021.4.13
Inlet time
11:29:20
11:35:06
11:26:13
11:24:33
11:26:20
Time of exit
11:39:16
11:45:14
11:36:19
11:34:45
11:36:08
On-line stock time
9.93min
10.13min
10.1min
10.2min
9.8min
Date of experiment
2021.4.15
2021.4.17
2021.4.23
2021.4.25
2021.4.26
Inlet time
11:33:50
11:33:10
11:33:08
11:55:23
11:38:56
Time of exit
11:43:38
11:34:10
11:43:02
12:05:29
11:49:02
On-line stock time
9.8min
10.0min
9.9min
10.1min
10.1min
The average value obtained from the above data sets of the online stock time test data was 10.006 min.
EXAMPLE III
A big data military industry enterprise intelligent management platform comprises the following steps of calculating the quantity of natural gas and hydrogen in equipment and pipelines in a hydrogen production device:
estimating the amount of natural gas and hydrogen in the equipment and pipelines in the hydrogen plant using the formula P0V0/T0= P1V1/T1, wherein:
using the formula P0V0/T0=P1V1/T1Estimating the amount of natural gas and hydrogen in equipment and pipelines in the hydrogen plant, wherein:
V0-volume under standard conditions;
P0-pressure under standard conditions;
T0-temperature under standard conditions;
P1-pressure of the medium in the device, the pipeline;
V1-the medium is inPreparing, preparing the volume in the pipeline;
T1-temperature of the medium in the apparatus, pipeline;
by transforming the above formula, V is obtained0=P1V1T0/P0T1；
The density of natural gas is 0.717kg/m3 under the standard atmospheric pressure and at the temperature of 0 ℃;
the density of hydrogen at 0 ℃ under standard atmospheric pressure was 0.0899kg/m 3.
Wherein, the medium in the front equipment and the pipeline of the natural gas converter is calculated according to the natural gas.
Wherein, the media in the devices and pipelines behind the natural gas converter are calculated according to hydrogen.
By increasing the pressure of the medium at the inlet end of the device, a peak value appears on the inlet display, and therefore a peak value also appears on the outlet display, the time difference between the two peak values is the online stock time of the medium in the device, and the online time of the device is verified by analogy.
Experimental data for hydrogen plant
Date of experiment
2021.4.3
2021.4.7
2021.4.9
2021.4.10
2021.4.13
Inlet time
12:09:10
12:15:12
12:03:43
12:11:23
12:16:55
Time of exit
12:19:15
12:25:24
12:13:39
12:21:40
12:27:08
On-line stock time
10.08min
10.2min
9.93min
10.28min
10.22min
Date of experiment
2021.4.15
2021.4.17
2021.4.23
2021.4.25
2021.4.26
Inlet time
12:22:16
12:03:26
12:23:23
12:45:06
12:18:30
Time of exit
12:32:08
12:13:12
12:33:20
12:55:19
10:28:35
On-line stock time
9.87min
9.77min
9.95min
10.21min
10.08min
The average value obtained from the above data sets of the online stock time test data was 10.059 min.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.