CN221324165U - Raw material gas compression system of synthesis device - Google Patents
Raw material gas compression system of synthesis device Download PDFInfo
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- CN221324165U CN221324165U CN202323311222.9U CN202323311222U CN221324165U CN 221324165 U CN221324165 U CN 221324165U CN 202323311222 U CN202323311222 U CN 202323311222U CN 221324165 U CN221324165 U CN 221324165U
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- pressure
- regulating valve
- gas
- pressure regulating
- natural gas
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- 238000007906 compression Methods 0.000 title claims abstract description 27
- 230000006835 compression Effects 0.000 title claims abstract description 25
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 22
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 22
- 239000002994 raw material Substances 0.000 title claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000007789 gas Substances 0.000 claims abstract description 76
- 230000001105 regulatory effect Effects 0.000 claims abstract description 52
- 239000003345 natural gas Substances 0.000 claims abstract description 47
- 238000009826 distribution Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000002737 fuel gas Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011946 reduction process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Hydrogen, Water And Hydrids (AREA)
Abstract
The utility model relates to a natural gas compression system, and provides a raw material gas compression system of a synthesis device, which comprises a high-pressure natural gas pipeline and a low-pressure natural gas pipeline; the high-pressure natural gas pipeline comprises a gas distribution station, a natural gas pressure regulating valve, a first flowmeter, a raw gas separating tank, a raw gas filter, a second-stage separator and a raw gas compressor which are connected in sequence; the low-pressure natural gas pipeline comprises a low-pressure natural gas source, a fuel gas filter, a first pressure regulating valve, a second flowmeter and a second pressure regulating valve which are connected in sequence; the outlet end of the second pressure regulating valve is simultaneously connected with a section of reformer and a synthetic start-up heating furnace. The raw material gas compression system of the synthesis device directly uses the high-pressure cylinder in the compression process, reduces the pressure reduction process, can obviously reduce the energy consumption and reduces the production cost.
Description
Technical Field
The utility model relates to the technical field of natural gas compression systems, in particular to a raw material gas compression system of a synthesis device.
Background
In the synthesis ammonia process, raw gas (natural gas) compression is a key point of the whole synthesis ammonia system and is also a main energy consumption device in the whole process.
In a common old raw material gas compression system, raw material gas is decompressed to about 0.4MPa by a gas transmission station and is conveyed into the raw material gas compression system, the raw material gas is pressurized to 3.75MPa by a double-cylinder raw material gas compression unit driven by a steam turbine and then enters a conversion system, and great energy consumption loss can be generated in the decompression-boosting process.
Disclosure of utility model
The utility model aims to provide a raw material gas compression system of a synthesis device, which directly uses a high-pressure cylinder in the compression process, reduces the pressure reduction process, can obviously reduce the energy consumption and reduce the production cost.
The embodiment of the utility model is realized by the following technical scheme: the raw material gas compression system of the synthesis device comprises a high-pressure natural gas pipeline and a low-pressure natural gas pipeline; the high-pressure natural gas pipeline comprises a gas distribution station, a natural gas pressure regulating valve, a first flowmeter, a raw gas separating tank, a raw gas filter, a second-stage separator and a raw gas compressor which are connected in sequence; the low-pressure natural gas pipeline comprises a low-pressure natural gas source, a fuel gas filter, a first pressure regulating valve, a second flowmeter and a second pressure regulating valve which are connected in sequence; and the outlet end of the second pressure regulating valve is simultaneously connected with a section of reformer and a synthetic start-up heating furnace.
Further, an outlet end of the feed gas filter is connected to an inlet end of the second pressure regulating valve.
Further, an emergency cut-off valve is arranged between the gas distribution station and the natural gas pressure regulating valve.
Further, a natural gas vent valve is arranged at the upstream of the natural gas pressure regulating valve.
Further, a first safety valve is arranged between the raw material gas separation tank and the raw material gas filter, and the jump pressure of the first safety valve is 2.0MPa.
Further, a third pressure regulating valve is arranged between the feed gas filter and the second pressure regulating valve.
Further, a second safety valve is arranged between the third pressure regulating valve and the second pressure regulating valve, and the tripping pressure of the second safety valve is 0.9MPa.
Further, a fourth pressure regulating valve is connected in parallel beside the second pressure regulating valve.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects: according to the synthesis device feed gas compression system, a low-pressure cylinder is removed by reconfiguring related structures such as pipelines and valves, a high-pressure cylinder is directly used, and feed gas of 1.6 MpaG-1.8 MpaG is pressurized to 3.75MpaG by a compressor and enters a conversion system. Therefore, the normal operation of the original production process can be ensured, the buck-boost process can be obviously reduced, the energy consumption can be reduced, the steam consumption in the process can be reduced, the cost can be reduced, the energy is saved, and the emission is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a synthesis apparatus feed gas compression system according to an embodiment of the present utility model.
Icon: the system comprises the following components of an 11-gas distribution station, a 12-emergency cut-off valve, a 13-natural gas pressure regulating valve, a 14-first flowmeter, a 15-raw gas separation tank, a 16-first safety valve, a 17-raw gas filter, an 18-second-stage separator, a 19-raw gas compressor, a 110-natural gas emptying valve, a 21-low-pressure natural gas source, a 22-fuel gas filter, a 23-first pressure regulating valve, a 24-second flowmeter, a 25-second pressure regulator, a 26-third pressure regulator, a 27-fourth pressure regulator, a 28-second safety valve, a 29-first-stage reformer and a 210-synthetic start-up heating furnace.
Detailed Description
Examples
The following is a further description of specific embodiments, as shown in fig. 1, of a synthesis plant feed gas compression system according to this embodiment, including a high pressure natural gas pipeline and a low pressure natural gas pipeline; the high-pressure natural gas pipeline comprises a gas distribution station 11, a natural gas pressure regulating valve 13, a first flowmeter 14, a raw gas separating tank 15, a raw gas filter 17, a second-stage separator 18 and a raw gas compressor 19 which are connected in sequence; the low-pressure natural gas pipeline comprises a low-pressure natural gas source 21, a fuel gas filter 22, a first pressure regulating valve 23, a second flowmeter 24 and a second pressure regulating valve which are connected in sequence; the outlet end of the second pressure regulating valve is connected with a section of reformer 29 and a synthetic start-up heating furnace 210. An emergency shut-off valve 12 is arranged between the gas distribution station 11 and the natural gas pressure regulating valve 13. Specifically, the high-pressure natural gas pressure of a large pipe network from a gas distribution station 11 is 2.0Mpa, the temperature is less than 35 ℃, an emergency cut-off valve 12 is arranged after entering a boundary region, the natural gas pressure is regulated to 1.6-1.8Mpa after passing through a natural gas pressure regulating valve 13, the natural gas pressure is measured by a first flowmeter 14, the gas and liquid separation of a raw gas separation tank 15 is carried out, a raw gas filter 17 filters the raw gas, and the filtered raw gas is compressed to 3.7Mpa by a high-pressure cylinder of a raw gas compressor 19 after passing through a second-stage separator 18. In addition, the feed gas compressed to 3.7MPa is passed through the feed gas quick-closing valve, and fed into the feed gas preheater after passing through the feed gas regulating valve.
The outlet end of the feed gas filter 17 in this embodiment is connected to the inlet end of the second pressure regulating valve. Specifically, when the low-pressure natural gas is insufficient, the natural gas at the outlet of the raw gas filter 17 can be depressurized to 0.6Mpa through the self-operated regulating valve and then supplemented through the second pressure regulating valve.
A natural gas vent valve 110 is provided upstream of the natural gas pressure regulating valve 13 in this embodiment. Specifically, the natural gas is vented to the venting system to prevent overpressure in the event of an accident.
A first relief valve 16 is provided between the feed gas separation tank 15 and the feed gas filter 17 in this embodiment, and the take-off pressure of the first relief valve 16 is 2.0MPa.
A third pressure regulating valve is provided between the feed gas filter 17 and the second pressure regulating valve in this embodiment. A second safety valve 28 is arranged between the third pressure regulating valve and the second pressure regulating valve, and the tripping pressure of the second safety valve 28 is 0.9MPa. Specifically, the second pressure regulating valve, the third pressure regulating valve and the second safety valve 28 are arranged between the raw gas filter 17 and the primary reformer 29 as well as between the raw gas filter and the synthesis start-up heating furnace 210, so as to reduce the pressure of the natural gas better and ensure safe production.
A fourth pressure regulating valve is connected in parallel beside the second pressure regulating valve in the embodiment.
In summary, in the synthesis apparatus feed gas compression system of this embodiment, the low pressure cylinder is removed by reconfiguring the related structures such as the pipeline and the valve, and the high pressure cylinder is directly used, so that the feed gas of 1.6mpa g to 1.8mpa g is pressurized to 3.75mpa g by the compressor and enters the conversion system. Therefore, the normal operation of the original production process can be ensured, the buck-boost process can be obviously reduced, the energy consumption can be reduced, the steam consumption in the process can be reduced, the cost can be reduced, the energy is saved, and the emission is reduced.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A raw material gas compression system of a synthesis device is characterized in that: the system comprises a high-pressure natural gas pipeline and a low-pressure natural gas pipeline;
The high-pressure natural gas pipeline comprises a gas distribution station (11), a natural gas pressure regulating valve (13), a first flowmeter (14), a raw gas separation tank (15), a raw gas filter (17), a second-stage separator (18) and a raw gas compressor (19) which are connected in sequence;
The low-pressure natural gas pipeline comprises a low-pressure natural gas source (21), a fuel gas filter (22), a first pressure regulating valve (23), a second flowmeter (24) and a second pressure regulating valve which are connected in sequence; and the outlet end of the second pressure regulating valve is simultaneously connected with a section of reformer (29) and a synthetic start-up heating furnace (210).
2. The synthesis device feed gas compression system of claim 1, wherein: the outlet end of the feed gas filter (17) is connected with the inlet end of the second pressure regulating valve.
3. The synthesis device feed gas compression system of claim 1, wherein: an emergency cut-off valve (12) is arranged between the gas distribution station (11) and the natural gas pressure regulating valve (13).
4. The synthesis device feed gas compression system of claim 1, wherein: and a natural gas vent valve (110) is arranged at the upstream of the natural gas pressure regulating valve (13).
5. The synthesis device feed gas compression system of claim 1, wherein: a first safety valve (16) is arranged between the raw material gas separation tank (15) and the raw material gas filter (17), and the jump pressure of the first safety valve (16) is 2.0MPa.
6. The synthesis device feed gas compression system of claim 2, wherein: a third pressure regulating valve is arranged between the feed gas filter (17) and the second pressure regulating valve.
7. The synthesis apparatus feed gas compression system of claim 6, wherein: a second safety valve (28) is arranged between the third pressure regulating valve and the second pressure regulating valve, and the tripping pressure of the second safety valve (28) is 0.9MPa.
8. The synthesis device feed gas compression system of claim 1, wherein: and a fourth pressure regulating valve is connected beside the second pressure regulating valve in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323311222.9U CN221324165U (en) | 2023-12-05 | 2023-12-05 | Raw material gas compression system of synthesis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323311222.9U CN221324165U (en) | 2023-12-05 | 2023-12-05 | Raw material gas compression system of synthesis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221324165U true CN221324165U (en) | 2024-07-12 |
Family
ID=91789383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323311222.9U Active CN221324165U (en) | 2023-12-05 | 2023-12-05 | Raw material gas compression system of synthesis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221324165U (en) |
-
2023
- 2023-12-05 CN CN202323311222.9U patent/CN221324165U/en active Active
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