CN217178283U - Coke oven gas compressor nitrogen gas circulation pipeline that can be reserved - Google Patents
Coke oven gas compressor nitrogen gas circulation pipeline that can be reserved Download PDFInfo
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- CN217178283U CN217178283U CN202220336148.2U CN202220336148U CN217178283U CN 217178283 U CN217178283 U CN 217178283U CN 202220336148 U CN202220336148 U CN 202220336148U CN 217178283 U CN217178283 U CN 217178283U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model relates to a standby coke oven gas compressor nitrogen circulating pipeline, belonging to the technical field of nitrogen pressure raising and temperature rising; the three-section cylinder pipeline system comprises a first machine and a second machine, and the first machine is connected with the three-section cylinder pipeline system of the second machine through a nitrogen circulating pipeline; a pipeline between the second-stage separator and the third-stage gas buffer of the first machine is connected with a nitrogen inlet pipeline, and a three-section outlet pipeline of the first machine is connected with a nitrogen outlet pipeline; a nitrogen inlet standby pipeline is arranged between a pipeline between the second-stage separator and the three-stage gas buffer of the second machine and the nitrogen inlet pipeline, a nitrogen outlet standby pipeline is arranged between the nitrogen outlet pipeline and the three-stage outlet pipeline of the second machine, and two-return-to-one pipelines are arranged on pipelines between the second-stage separator and the three-stage gas buffer of the first machine and between the second-stage separator and the three-stage gas buffer of the second machine; the problem that the coke oven gas compressor and the nitrogen pressure raising and temperature rising cycle cannot work simultaneously is solved.
Description
Technical Field
The utility model belongs to the technical field of nitrogen gas is carried and is pressed intensification, concretely relates to coke oven gas compressor nitrogen gas circulation pipeline that can be reserve.
Background
The nitrogen needs to be subjected to pressure raising and temperature rising when conversion driving is carried out, but the equipment for raising the pressure of the nitrogen is separately arranged, so that the cost is high, and the efficiency is low, so that the pressure raising and temperature rising of the nitrogen can be combined with the working cycle of the coke-oven gas compressor, but if a single coke-oven gas compressor is combined with the nitrogen pressure raising and temperature rising cycle, the nitrogen cannot be subjected to pressure raising and temperature rising when the coke-oven gas compressor works, and the normal production is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a standby nitrogen circulating pipeline of the coke oven gas compressor; the problem that the coke oven gas compressor and the nitrogen pressure-raising and temperature-raising circulation can not work simultaneously is solved.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A standby nitrogen circulating pipeline of a coke oven gas compressor comprises three-section cylinder pipeline systems of a first machine and a second machine, wherein the three-section cylinder pipeline systems of the first machine and the second machine are connected through a nitrogen circulating pipeline, the three-section cylinder pipeline systems of the first machine and the second machine are identical in structure, and a second-stage separator, a third-stage gas buffer, a third-stage cylinder, a third-stage exhaust buffer, a third-stage cooler, a third-stage separator and a third-stage outlet pipeline are sequentially arranged along the flow direction of compressed gas through pipeline connection;
a nitrogen inlet pipeline, a nitrogen outlet pipeline and a first loop are further arranged in the three-section cylinder pipeline system of the first machine, one end of the nitrogen inlet pipeline is connected to a pipeline between the second-stage separator and the three-stage gas buffer, one end of the nitrogen outlet pipeline is connected to the three-section outlet pipeline, and one end of the first loop is connected to a pipeline between the second-stage separator and the three-stage gas buffer;
a nitrogen inlet standby pipeline, a nitrogen outlet standby pipeline and a second loop are further arranged in the three-section cylinder pipeline system of the second machine, one end of the nitrogen inlet standby pipeline is arranged on the nitrogen inlet pipeline, the other end of the nitrogen inlet standby pipeline is arranged on a pipeline between the second-stage separator and the three-stage gas buffer of the second machine, one end of the nitrogen outlet standby pipeline is arranged on the nitrogen outlet pipeline, the other end of the nitrogen outlet standby pipeline is arranged on the three-stage outlet pipeline of the second machine, and one end of the second loop is connected to a pipeline between the second-stage separator and the three-stage gas buffer of the second machine.
Furthermore, a first check valve and a third stop valve are sequentially arranged on three sections of outlet pipelines of the first machine and the second machine along the direction far away from the three sections of cylinders.
Furthermore, a first stop valve is arranged on a pipeline between the second-stage separator of the first machine and the third-stage gas buffer, a sixth stop valve is further arranged on a pipeline between the second-stage separator of the second machine and the third-stage gas buffer, and 8-shaped blind plates are arranged on one sides of the first stop valve and the sixth stop valve.
Furthermore, the joint of one end of the first loop is positioned between the second-stage separator of the first machine and the first stop valve; the other end of the first loop is connected to a pipeline at the inlet end of a progressive gas buffer of a first section of cylinder of the first machine, and a fifth stop valve is arranged on the first loop.
Furthermore, the connection position of one end of the nitrogen inlet pipeline is positioned between the first stop valve and the three-stage gas buffer of the first machine.
Furthermore, a second stop valve and two 8-shaped blind plates are sequentially arranged on the nitrogen inlet pipeline along the flowing direction of the nitrogen.
Furthermore, the one end junction of nitrogen gas outlet pipe way is located between first check valve and the third stop valve of a machine, and nitrogen gas outlet pipe way has set gradually two 8 word blind plates and a fourth stop valve along the direction of nitrogen gas circulation on the road.
Furthermore, the joint of one end of the second loop is positioned between the second-stage separator of the second machine and the sixth stop valve, the other end of the second loop is connected to the inlet end pipeline of the first-stage gas buffer of the first-stage cylinder of the second machine, and the second loop is provided with a seventh stop valve.
Furthermore, the junction of the nitrogen inlet standby pipeline and the nitrogen inlet pipeline is positioned between two 8-shaped blind plates on the nitrogen inlet pipeline, and the junction of the other end of the nitrogen inlet standby pipeline is positioned between a third-stage gas inlet buffer of a second machine and a sixth stop valve.
Furthermore, the connection position of the nitrogen outlet standby pipeline and the nitrogen outlet pipeline is located between two 8-shaped blind plates on the nitrogen outlet pipeline, the connection position of the nitrogen outlet standby pipeline and the three-section outlet pipeline of the second machine is located between the three-stage separator of the second machine and the first check valve, the second check valve is arranged on the nitrogen outlet standby pipeline, and the 8-shaped blind plates are arranged on one side of the second check valve.
The utility model discloses produced beneficial effect for prior art does:
the utility model combines the pressure-increasing and temperature-raising circulation pipeline of nitrogen with the three-section cylinder circulation pipeline of two units, thus the three-section cylinders of the two units can be used to provide power for the nitrogen circulation temperature-raising; and when the machine I needs to work independently, the nitrogen circulation can be switched to the position of the three-section cylinder of the machine II, the three-section cylinder is utilized to provide power for the nitrogen circulation heating, the machine I and the machine II are mutually standby, the nitrogen circulation can be ensured to be provided with the power of the coke oven gas compressor all the time, thus the coke oven gas compressor and the nitrogen circulation can work simultaneously, and the problem provided in the background technology is solved.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the whole of the present invention;
the system comprises a first-stage air buffer 1, a second-stage air buffer 2, a second-stage separator 3, a third-stage air buffer 4, a three-stage cylinder 5, a third-stage exhaust buffer 6, a third-stage cooler 7, a third-stage separator 8, a first stop valve 9, a 8-shaped blind plate 10, a three-stage outlet pipeline 11, a first check valve 12, a third stop valve 13, a nitrogen inlet pipeline 14, a nitrogen outlet pipeline 15, a first loop 16, a second stop valve 17, a fourth stop valve 18, a fifth stop valve 19, a nitrogen inlet standby pipeline 20, a nitrogen outlet standby pipeline 21, a second loop 22, a sixth stop valve 23, a seventh stop valve 24 and a second check valve 25.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in figure 1, the utility model provides a coke oven gas compressor nitrogen gas circulation pipeline that can be reserve, including the three-section jar pipeline system of a number of machine 1 and a number of machine 2, be connected a number of machine 1 with the three-section jar pipeline system of a number of machine 2 through nitrogen gas circulation pipeline.
The three-section cylinder pipeline system of the first machine 1 is characterized in that a three-stage air buffer 4 is connected to an inlet at the front end of a three-section cylinder 5 through a pipeline, one end, far away from the three-section cylinder 5, of the three-stage air buffer 4 is connected with a second-stage separator 3 through a pipeline, and one end, far away from the three-stage air buffer 4, of the second-stage separator 3 is connected with a second-stage cooler through a pipeline. The rear end outlet of the three-section cylinder 5 of the first machine 1 is sequentially connected with a three-stage exhaust buffer 6, a three-stage cooler 7 and a three-stage separator 8 through pipelines.
The three-cylinder 5 wire-changing system of the second machine 2 is the same as the three-cylinder pipeline system of the first machine 1 in structure, a three-stage air buffer 4 and a two-stage separator 3 are sequentially arranged at the front end inlet of the three-cylinder 5 of the second machine 2 along the direction far away from the three-cylinder 5 through a pipeline, and a three-stage exhaust buffer 6, a three-stage cooler 7 and a three-stage separator 8 are sequentially arranged at the rear end outlet along the direction far away from the three-cylinder 5 through a pipeline.
Three sections of outlet pipelines 11 are arranged at the outlets of the three-stage separators 8 of the first machine 1 and the second machine 2, and a first check valve 12 and a third stop valve 13 are sequentially arranged on the three sections of outlet pipelines 11 along the direction far away from the three sections of cylinders 5.
A first stop valve 9 is arranged on a pipeline between the second-stage separator 3 and the third-stage gas buffer 4 of the first machine 1, and an 8-shaped blind plate 10 is arranged on one side of the first stop valve 9.
A nitrogen inlet pipeline 14, a nitrogen outlet pipeline 15 and a first loop 16 are further arranged in the three-section cylinder pipeline system of the first machine 1. One end of the nitrogen inlet pipe 14 is connected to a pipe between the second-stage separator 3 and the third-stage buffer 4, and the connection between the two is located between the first stop valve 9 and the third-stage buffer 4. The other end of the nitrogen inlet line 14 is connected to a nitrogen input device so that nitrogen is input to the inside of the nitrogen inlet line 14. A second stop valve 17 and two 8-shaped blind plates 10 are sequentially arranged on the nitrogen inlet pipeline 14 along the flowing direction of the nitrogen.
One end of the nitrogen outlet line 15 is connected to the three-stage outlet line 11, and the connection is between the first check valve 12 and the third check valve 13. Two 8-shaped blind plates 10 and a fourth stop valve 18 are sequentially arranged on the nitrogen outlet pipeline 15 along the flowing direction of the nitrogen.
One end of the first circuit 16 is connected to a pipe between the second-stage separator 3 and the third-stage gas buffer 4, and the connection is between the second-stage separator 3 and the first stop valve 9. The other end of the first circuit 16 is connected to a stage air buffer inlet port line of a stage cylinder of machine 1. A fifth shut-off valve 19 is arranged in the first circuit 16. The pressurized compressed gas from the second cylinder of the first engine is returned to the first cylinder inlet via the first circuit 16.
A nitrogen inlet standby pipeline 20, a nitrogen outlet standby pipeline 21 and a second loop 22 are further arranged in the three-section cylinder pipeline system of the second machine 2.
One end of the nitrogen inlet standby pipeline 20 is arranged on the nitrogen inlet pipeline 14 and is positioned between the two 8-shaped blind plates 10 on the nitrogen inlet pipeline 14, and the other end of the nitrogen inlet standby pipeline 20 is arranged on a pipeline between the second-stage separator 3 and the third-stage gas buffer 4 of the second-stage separator 2. A sixth stop valve 23 is further arranged on a pipeline between the second-stage separator 3 and the third-stage gas buffer 4 of the second machine 2, and an 8-shaped blind plate 10 is arranged on one side of the sixth stop valve 23. The end of the nitrogen inlet backup line 20 remote from the nitrogen inlet line 14 is located between the third stage gas buffer 4 of the second machine 2 and the sixth stop valve 23.
One end of the nitrogen outlet standby pipeline 21 is arranged on the nitrogen outlet pipeline 15 and is positioned between two 8-shaped blind plates 10 on the nitrogen outlet pipeline 15, the other end of the nitrogen outlet standby pipeline 21 is arranged on a three-section outlet pipeline 11 at the outlet of the three-stage separator 8 of the second machine 2 and is positioned between the three-stage separator 8 of the second machine 2 and the first check valve 12, a second check valve 25 is arranged on the nitrogen outlet standby pipeline 21, and one side of the second check valve 25 is provided with the 8-shaped blind plate 10.
One end of the second loop 22 is connected to a pipeline between the second-stage separator 3 and the third-stage gas buffer 4 of the second machine 2 and is positioned between the second-stage separator 3 and the sixth stop valve 23, and the other end of the second loop is connected to a pipeline at the inlet end of the first-stage gas buffer of the first-stage cylinder of the second machine 2. A seventh stop valve 24 is provided on the second circuit 22. The pressurized compressed gas from the second cylinder of the second machine is returned to the first cylinder inlet via a second circuit 22.
The utility model discloses a theory of operation does:
when the coke oven gas is in a normal coke oven gas compression cycle, the nitrogen inlet pipeline 14, the nitrogen outlet pipeline 15, the nitrogen inlet standby pipeline 20, the nitrogen outlet standby pipeline 21, the stop valves on the first loop 16 and the second loop 22, the 8-shaped blind plate 10 and the second check valve 25 are in a closed state, the first stop valve 9, the third stop valve 13, the sixth stop valve 23 and the first check valve 12 are in an open state, and the compressed coke oven gas output by the second-stage separators 3 of the first machine 1 and the second machine 2 passes through the three-stage gas buffer 4, the three-stage cylinder 5, the three-stage gas discharge buffer 6, the three-stage cooler 7, the three-stage separator 8 and the three-stage outlet pipeline 11 and finally enters the four-stage gas buffer of the four-stage cylinder.
When the three-section cylinder 5 of the first machine 1 needs to provide power for compression and temperature rise of nitrogen, the first stop valve 9, the seventh stop valve 24, the third stop valve 13 and the first check valve 12 of the first machine 1, the 8-shaped blind plate 10 on the nitrogen inlet standby pipeline 20 and the second check valve 25 on the nitrogen outlet standby pipeline 21 are closed, and the sixth stop valve 23, the third stop valve 13 and the first check valve 12 of the second machine 2, the stop valve on the first circuit 16, the stop valve on the nitrogen inlet pipeline 14, the 8-shaped blind plate 10, the stop valve on the nitrogen outlet pipeline 15 and the 8-shaped blind plate 10 are opened. Thus, the compressed coke-oven gas output by the second-stage separator 3 of the second machine 2 finally enters a four-stage gas buffer of a four-stage cylinder through a three-stage gas buffer 4, a three-stage cylinder 5, a three-stage exhaust buffer 6, a three-stage cooler 7, a three-stage separator 8 and a three-stage outlet pipeline 11; the first loop 16 re-inputs the compressed coke-oven gas output by the second-stage separator 3 into a first-stage gas buffer of a first-stage cylinder of the first machine 1 to perform a two-to-one cycle; nitrogen is input from a nitrogen inlet pipeline 14, passes through a three-stage gas inlet buffer 4, a three-stage exhaust buffer 6, a three-stage cooler 7 and a three-stage separator 8 of the first machine 1 in sequence to be pressurized and heated, and is finally output from a nitrogen outlet pipeline 15.
When the three-section cylinder 5 of the first machine 1 cannot pressurize and heat the nitrogen and the three-section cylinder 5 of the second machine 2 needs to provide power for compressing and heating the nitrogen, the stop valve on the first circuit 16, the sixth stop valve 23, the 8-shaped blind plate 10 on the nitrogen inlet pipeline 14 close to one side of the three-stage gas buffer 4, the 8-shaped blind plate 10 on the nitrogen outlet pipeline 15 close to one side of the three-section outlet pipeline 11, the third stop valve 13 and the first check valve 12 of the second machine 2 are closed, the seventh stop valve 24, the first stop valve 9, the stop valve on the nitrogen inlet pipeline 14, the 8-shaped blind plate 10 far away from one side of the three-stage gas buffer 4, the third stop valve 13 and the first check valve 12 of the first machine 1, the stop valve on the nitrogen outlet pipeline 15, the 8-shaped blind plate 10 far away from one side of the three-section outlet pipeline 11, the 8-shaped blind plate 10 on the nitrogen inlet standby pipeline 20 are opened, A second check valve 25 on the nitrogen outlet backup line 21 and an 8-shaped blind plate 10. Thus, the compressed coke oven gas output by the second-stage separator 3 of the machine 1 finally enters a four-stage gas buffer of a four-stage cylinder through a three-stage gas buffer 4, a three-stage cylinder 5, a three-stage exhaust buffer 6, a three-stage cooler 7, a three-stage separator 8 and a three-stage outlet pipeline 11; the second loop 22 re-inputs the compressed coke-oven gas output by the second-stage separator 3 into the first-stage gas buffer of the first-stage cylinder of the second machine 2 to perform a second-to-first cycle; the nitrogen is input from the nitrogen inlet pipeline 14, enters the nitrogen inlet standby pipeline 20, then sequentially passes through the three-stage gas inlet buffer 4, the three-stage gas exhaust buffer 6, the three-stage cooler 7 and the three-stage separator 8 of the second machine 2 to carry out nitrogen pressurization and temperature rise, and finally is sequentially output from the nitrogen outlet standby pipeline 21 and the nitrogen outlet pipeline 15.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A coke oven gas compressor nitrogen gas circulation pipeline that can reserve which characterized in that: the pipeline system comprises three cylinders (5) of a first machine (1) and a second machine (2), wherein the pipeline system of the three cylinders (5) of the first machine (1) and the second machine (2) is connected through a nitrogen circulating pipeline, the pipeline systems of the three cylinders (5) of the first machine (1) and the second machine (2) are identical in structure, and a second-stage separator (3), a third-stage gas buffer (4), the three cylinders (5), a third-stage exhaust buffer (6), a third-stage cooler (7), a third-stage separator (8) and a third-stage outlet pipeline (11) are sequentially arranged along the flowing direction of compressed gas through pipeline connection;
a nitrogen inlet pipeline (14), a nitrogen outlet pipeline (15) and a first loop (16) are further arranged in a three-section cylinder (5) pipeline system of the first machine (1), one end of the nitrogen inlet pipeline (14) is connected to a pipeline between the second-stage separator (3) and the third-stage gas buffer (4), one end of the nitrogen outlet pipeline (15) is connected to the three-section outlet pipeline (11), and one end of the first loop (16) is connected to a pipeline between the second-stage separator (3) and the third-stage gas buffer (4);
a nitrogen inlet standby pipeline (20), a nitrogen outlet standby pipeline (21) and a second loop (22) are further arranged in a three-section cylinder (5) pipeline system of the second machine (2), one end of the nitrogen inlet standby pipeline (20) is arranged on the nitrogen inlet pipeline (14), the other end of the nitrogen inlet standby pipeline is arranged on a pipeline between the second-stage separator (3) of the second machine (2) and the third-stage gas inlet buffer (4), one end of the nitrogen outlet standby pipeline (21) is arranged on the nitrogen outlet pipeline (15), the other end of the nitrogen outlet standby pipeline is arranged on the three-section outlet pipeline (11) of the second machine (2), and one end of the second loop (22) is connected to a pipeline between the second-stage separator (3) of the second machine (2) and the third-stage gas inlet buffer (4).
2. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 1, characterized in that: a first check valve (12) and a third stop valve (13) are sequentially arranged on three outlet pipelines (11) of the first machine (1) and the second machine (2) along the direction far away from the three cylinders (5).
3. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 1, characterized in that: a first stop valve (9) is arranged on a pipeline between the second-stage separator (3) of the first machine (1) and the third-stage gas buffer (4), a sixth stop valve (23) is further arranged on a pipeline between the second-stage separator (3) of the second machine (2) and the third-stage gas buffer (4), and 8-shaped blind plates (10) are arranged on one sides of the first stop valve (9) and the sixth stop valve (23).
4. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 3, characterized in that: the joint of one end of the first loop (16) is positioned between the secondary separator (3) and the first stop valve (9) of the first machine (1); the other end of the first loop (16) is connected to a pipeline at the inlet end of a first-stage gas inlet buffer of a first section of cylinder of the first machine (1), and a fifth stop valve (19) is arranged on the first loop (16).
5. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 3, characterized in that: one end of the nitrogen inlet pipeline (14) is connected between the first stop valve (9) and the three-stage gas buffer (4) of the first machine (1).
6. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 5, characterized in that: a second stop valve (17) and two 8-shaped blind plates (10) are sequentially arranged on the nitrogen inlet pipeline (14) along the flowing direction of nitrogen.
7. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 2, characterized in that: one end of the nitrogen outlet pipeline (15) is connected between the first check valve (12) and the third stop valve (13) of the first machine (1), and the nitrogen outlet pipeline (15) is sequentially provided with two 8-shaped blind plates (10) and a fourth stop valve (18) along the flowing direction of nitrogen.
8. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 3, characterized in that: one end of the second loop (22) is connected between the second-stage separator (3) of the second machine (2) and the sixth stop valve (23), the other end of the second loop is connected to a pipeline at the inlet end of a first-stage air buffer of a section of cylinder of the second machine (2), and a seventh stop valve (24) is arranged on the second loop (22).
9. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 6, characterized in that: the connecting part of the nitrogen inlet standby pipeline (20) and the nitrogen inlet pipeline (14) is positioned between two 8-shaped blind plates (10) on the nitrogen inlet pipeline (14), and the connecting part of the other end of the nitrogen inlet standby pipeline (20) is positioned between a three-stage gas buffer (4) of a second machine (2) and a sixth stop valve (23).
10. The coke oven gas compressor nitrogen recycle line that can be used as a backup according to claim 7, characterized in that: the junction of nitrogen gas export spare line (21) and nitrogen gas export pipeline (15) is located between two 8 word blind slabs (10) on nitrogen gas export pipeline (15), and the junction of nitrogen gas export spare line (21) and three-section outlet pipeline (11) of No. two machine (2) is located between tertiary separator (8) and first check valve (12) of No. two machine (2), is provided with second check valve (25) on nitrogen gas export spare line (21), and one side of second check valve (25) is provided with 8 word blind slabs (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220336148.2U CN217178283U (en) | 2022-02-19 | 2022-02-19 | Coke oven gas compressor nitrogen gas circulation pipeline that can be reserved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220336148.2U CN217178283U (en) | 2022-02-19 | 2022-02-19 | Coke oven gas compressor nitrogen gas circulation pipeline that can be reserved |
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| CN217178283U true CN217178283U (en) | 2022-08-12 |
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| CN202220336148.2U Active CN217178283U (en) | 2022-02-19 | 2022-02-19 | Coke oven gas compressor nitrogen gas circulation pipeline that can be reserved |
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| CN (1) | CN217178283U (en) |
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- 2022-02-19 CN CN202220336148.2U patent/CN217178283U/en active Active
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