CN220625890U - Coke oven gas closed circulation sampling device - Google Patents
Coke oven gas closed circulation sampling device Download PDFInfo
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- CN220625890U CN220625890U CN202322112540.6U CN202322112540U CN220625890U CN 220625890 U CN220625890 U CN 220625890U CN 202322112540 U CN202322112540 U CN 202322112540U CN 220625890 U CN220625890 U CN 220625890U
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- pipeline
- valve
- gas
- coke oven
- sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 81
- 239000000571 coke Substances 0.000 title claims abstract description 39
- 239000011810 insulating material Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010926 purge Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a coke oven gas closed cycle sampling device, and relates to the technical field of coal chemical industry. Before the coke oven gas in the gas pipeline to be sampled is sampled, the first valve, the fifth valve and the fourth valve can be opened, the second valve and the third valve are closed, the residual gas in the first pipeline can be completely replaced by the gas in the gas pipeline to be sampled, and then the fifth valve is closed, the second valve and the third valve are opened, the gas reaches the sampling bottle to complete sampling, and the residual gas in the first pipeline before sampling is completely replaced by the coke oven gas in the gas pipeline to be sampled, so that the sampling accuracy of the sampling bottle is improved; in addition, the replaced residual gas and the sampled gas enter a gas pipeline before the fan to realize closed circulation, so that the gas cannot be discharged, and the pollution to the air is reduced.
Description
Technical Field
The utility model relates to the technical field of coal chemical industry, in particular to a coke oven gas closed cycle sampling device.
Background
Coke oven gas is formed by carbonizing coking coal in a coke oven at a high temperature, wherein about 25% of various chemical substances are generated and escape from a riser in the form of raw coke oven gas. The coke oven gas is required to be sampled and detected through a sampling bottle in daily life, and when the current sampling device samples the gas, the gas in the last sampling is remained in the sampling pipeline, so that the gas in the current sampling is not all the gas flowing through the gas pipeline, and the sampling is inaccurate.
Disclosure of Invention
The utility model solves the technical problem of how to improve the sampling accuracy of coke oven gas by providing the closed cycle sampling device of the coke oven gas.
The utility model provides the following technical scheme:
a coke oven gas closed cycle sampling device comprises a sampling bottle, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a first valve, a second valve, a third valve, a fourth valve and a fifth valve;
the gas pipeline to be sampled is connected with the gas inlet of the sampling bottle through the first pipeline and the second pipeline in sequence, the gas outlet of the sampling bottle is connected with the gas pipeline in front of the fan through the third pipeline and the fourth pipeline in sequence, the first end of the fifth pipeline is connected with the first pipeline, and the second end of the fifth pipeline is connected with the fourth pipeline;
the first valve is arranged on the first pipeline between the gas pipeline to be sampled and the first end of the fifth pipeline, the second valve is arranged on the second pipeline, the third valve is arranged on the third pipeline, the fourth valve is arranged on the fourth pipeline between the second end of the fifth pipeline and the gas pipeline before the fan, and the fifth valve is arranged on the fifth pipeline.
Preferably, the coke oven gas closed cycle sampling device further comprises a sixth pipeline, a sixth valve and a seventh valve;
the sixth valve is arranged on the second pipeline between the second valve and the sampling bottle, the second pipeline between the second valve and the sixth valve is connected with the first end of the sixth pipeline, the third pipeline between the third valve and the fourth pipeline is connected with the second end of the sixth pipeline, and the seventh valve is arranged on the sixth pipeline.
Preferably, the coke oven gas closed cycle sampling device further comprises a seventh pipeline and a tenth valve;
the second pipeline between the second valve and the first end of the sixth pipeline is connected with one end of the seventh pipeline, and the tenth valve is arranged on the seventh pipeline.
Preferably, the coke oven gas closed cycle sampling device further comprises a flowmeter, wherein the flowmeter is arranged in the second pipeline between the sixth valve and the sampling bottle.
Preferably, the coke oven gas closed cycle sampling device further comprises a first pressure gauge, and the first pressure gauge is arranged on the second pipeline between the second valve and the sampling bottle.
Preferably, the second valve, the third valve and the sampling bottle are all arranged in a sealed sampling cabinet.
Preferably, the sealed sampling cabinet adopts double-deck heat preservation material.
Preferably, the coke oven gas closed cycle sampling device further comprises an eighth pipeline and an eighth valve;
the first pipeline between the first valve and the first end of the fifth valve is connected with one end of the eighth pipeline, and the eighth valve is arranged on the eighth pipeline.
Preferably, the coke oven gas closed cycle sampling device further comprises a ninth pipeline and a ninth valve;
the fourth pipeline between the second ends of the fourth valve and the fifth valve is connected with one end of the ninth pipeline, and the ninth valve is arranged on the ninth pipeline.
Preferably, the coke oven gas closed cycle sampling device further comprises a second pressure gauge, and the second pressure gauge is arranged on the fourth pipeline.
The technical scheme provided by the utility model has at least the following technical effects or advantages:
before the coke oven gas in the gas pipeline to be sampled is sampled, the first valve, the fifth valve and the fourth valve can be opened, the second valve and the third valve are closed, the residual gas in the first pipeline can be completely replaced by the gas in the gas pipeline to be sampled, and then the fifth valve is closed, the second valve and the third valve are opened, the gas reaches the sampling bottle to complete sampling, and the residual gas in the first pipeline before sampling is completely replaced by the coke oven gas in the gas pipeline to be sampled, so that the sampling accuracy of the sampling bottle is improved; in addition, the replaced residual gas and the sampled gas enter a gas pipeline before the fan to realize closed circulation, so that the gas cannot be discharged, and the pollution to the air is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other 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 coke oven gas closed cycle sampling device in an embodiment of the utility model.
Reference numerals illustrate:
10-a first pipe; 20-a second conduit; 30-a third pipe; 40-fourth pipeline; 50-fifth pipe; 60-sixth conduit; 70-seventh conduit; 80-eighth conduit; 90-ninth conduit.
Detailed Description
The embodiment of the utility model solves the technical problem of how to improve the sampling accuracy of the coke oven gas by providing the closed cycle sampling device of the coke oven gas.
In order to better understand the technical scheme of the present utility model, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1, the coke oven gas closed cycle sampling apparatus of the present embodiment includes a sampling bottle, a first pipe 10, a second pipe 20, a third pipe 30, a fourth pipe 40, a fifth pipe 50, a sixth pipe 60, a seventh pipe 70, an eighth pipe 80, a ninth pipe 90, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, an eighth valve, a ninth valve, and a tenth valve.
The gas pipeline to be sampled is connected with the gas inlet of the sampling bottle through the first pipeline 10 and the second pipeline 20 in sequence, the gas outlet of the sampling bottle is connected with the gas pipeline before the fan through the third pipeline 30 and the fourth pipeline 40 in sequence, the first end of the fifth pipeline 50 is connected with the first pipeline 10, and the second end of the fifth pipeline 50 is connected with the fourth pipeline 40.
The first valve is arranged on the first pipeline 10 between the gas pipeline to be sampled and the first end of the fifth pipeline 50, the second valve is arranged on the second pipeline 20, the third valve is arranged on the third pipeline 30, the fourth valve is arranged on the fourth pipeline 40 between the second end of the fifth pipeline 50 and the gas pipeline before the fan, and the fifth valve is arranged on the fifth pipeline 50.
The sixth valve is arranged on the second pipeline 20 between the second valve and the sampling bottle, the second pipeline 20 between the second valve and the sixth valve is connected with the first end of the sixth pipeline 60, the third pipeline 30 between the third valve and the fourth pipeline 40 is connected with the second end of the sixth pipeline 60, and the seventh valve is arranged on the sixth pipeline 60.
The second conduit 20 between the second valve and the first end of the sixth conduit 60 connects to one end of the seventh conduit 70, and the tenth valve is disposed on the seventh conduit 70.
The first pipe 10 between the first valve and the first end of the fifth valve is connected to one end of the eighth pipe 80, and the eighth valve is disposed on the eighth pipe 80.
The fourth conduit 40 between the second ends of the fourth and fifth valves is connected to one end of the ninth conduit 90, and the ninth valve is disposed on the ninth conduit 90.
In this embodiment, before sampling coke oven gas in the gas pipeline to be sampled, the first valve, the fifth valve and the fourth valve may be opened, the second valve, the third valve, the eighth valve and the ninth valve may be closed, the gas flow direction is shown in fig. 1(1), and the residual gas in the first pipeline 10 may be completely replaced by the gas in the gas pipeline to be sampled; considering that the residual gas in the second pipeline 20 during the last sampling is also inaccurate in sampling, after the residual gas in the first pipeline 10 is replaced, the fifth valve, the sixth valve and the tenth valve can be closed, the second valve and the seventh valve are opened, the gas flow direction is shown in a graph 1(2), and the residual gas in the second pipeline 20 can be replaced by the gas in the gas pipeline to be sampled after a period of time; thereafter, the seventh valve is closed, the third valve and the sixth valve are opened, the flow direction of the gas is as shown in fig. 1(3), and the gas reaches the sampling bottle to complete sampling. Because the residual gas in the first pipeline 10 and the second pipeline 20 is basically and completely replaced by the coke oven gas in the gas pipeline to be sampled before sampling, the gas sampled by the sampling bottle is basically and completely the gas in the gas pipeline to be sampled, and the sampling accuracy is improved. In addition, the replaced residual gas and the sampled gas enter a gas pipeline before the fan to realize closed circulation, so that the gas cannot be discharged, and the pollution to the air is reduced.
Wherein, considering that condensed water exists in the gas, the eighth valve and the ninth valve can be periodically opened, and the condensed water can be discharged through the eighth pipe 80 and the ninth pipe 90.
In consideration of the possible blockage of the second, third and sixth pipelines 20, 30 and 60, the tenth valve may be opened at this time, the seventh pipeline 70 may be connected to a purge device, and purge gas may be introduced into the second, third and sixth pipelines 20, 30 and 60 through the seventh pipeline 70 to purge the pipelines.
The coke oven gas closed cycle sampling device of this embodiment further includes a flow meter, a first pressure meter and a second pressure meter, the flow meter is disposed in the second pipeline 20 between the sixth valve and the sampling bottle, the first pressure meter is disposed on the second pipeline 20 between the second valve and the sampling bottle, and the second pressure meter is disposed on the fourth pipeline 40. The volume and pressure of the sampled gas need to be known in the calculation after sampling, the flowmeter is used for detecting the volume of the sampled gas, and the first pressure gauge is used for detecting the pressure of the sampled gas. Under normal conditions, the gas pipeline in front of the fan should be negative pressure, and the second pressure gauge is used for monitoring the pressure at the position so as to discover positive pressure abnormal conditions and negative pressure oversized abnormal conditions in time.
In this embodiment, the second pipe 20, the third pipe 30, the sixth pipe 60, the second valve, the third valve, the sixth valve, the seventh valve, the tenth valve, the first pressure gauge, the flow meter and the sampling bottle are all disposed in the sealed sampling cabinet, and the sealed sampling cabinet can be made of a double-layer heat-insulation material for freezing prevention.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The coke oven gas closed cycle sampling device is characterized by comprising a sampling bottle, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a first valve, a second valve, a third valve, a fourth valve and a fifth valve;
the gas pipeline to be sampled is connected with the gas inlet of the sampling bottle through the first pipeline and the second pipeline in sequence, the gas outlet of the sampling bottle is connected with the gas pipeline in front of the fan through the third pipeline and the fourth pipeline in sequence, the first end of the fifth pipeline is connected with the first pipeline, and the second end of the fifth pipeline is connected with the fourth pipeline;
the first valve is arranged on the first pipeline between the gas pipeline to be sampled and the first end of the fifth pipeline, the second valve is arranged on the second pipeline, the third valve is arranged on the third pipeline, the fourth valve is arranged on the fourth pipeline between the second end of the fifth pipeline and the gas pipeline before the fan, and the fifth valve is arranged on the fifth pipeline.
2. The coke oven gas closed cycle sampling apparatus of claim 1, further comprising a sixth conduit, a sixth valve, and a seventh valve;
the sixth valve is arranged on the second pipeline between the second valve and the sampling bottle, the second pipeline between the second valve and the sixth valve is connected with the first end of the sixth pipeline, the third pipeline between the third valve and the fourth pipeline is connected with the second end of the sixth pipeline, and the seventh valve is arranged on the sixth pipeline.
3. The coke oven gas closed cycle sampling apparatus of claim 2, further comprising a seventh conduit and a tenth valve;
the second pipeline between the second valve and the first end of the sixth pipeline is connected with one end of the seventh pipeline, and the tenth valve is arranged on the seventh pipeline.
4. The coke oven gas closed cycle sampling apparatus of claim 2, further comprising a flow meter disposed in the second conduit between the sixth valve and the sampling bottle.
5. The coke oven gas closed cycle sampling apparatus of claim 1, further comprising a first pressure gauge disposed on the second conduit between the second valve and the sampling bottle.
6. The coke oven gas closed cycle sampling apparatus of claim 1, wherein the second valve, the third valve, and the sampling bottle are all disposed within a sealed sampling cabinet.
7. The coke oven gas closed cycle sampling apparatus of claim 6, wherein the sealed sampling cabinet is made of a double-layer heat-insulating material.
8. The coke oven gas closed cycle sampling apparatus of claim 1, further comprising an eighth conduit and an eighth valve;
the first pipeline between the first valve and the first end of the fifth valve is connected with one end of the eighth pipeline, and the eighth valve is arranged on the eighth pipeline.
9. The coke oven gas closed cycle sampling apparatus of claim 1, further comprising a ninth conduit and a ninth valve;
the fourth pipeline between the second ends of the fourth valve and the fifth valve is connected with one end of the ninth pipeline, and the ninth valve is arranged on the ninth pipeline.
10. The coke oven gas closed cycle sampling apparatus of claim 1, further comprising a second pressure gauge disposed on the fourth conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322112540.6U CN220625890U (en) | 2023-08-07 | 2023-08-07 | Coke oven gas closed circulation sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322112540.6U CN220625890U (en) | 2023-08-07 | 2023-08-07 | Coke oven gas closed circulation sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220625890U true CN220625890U (en) | 2024-03-19 |
Family
ID=90234552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322112540.6U Active CN220625890U (en) | 2023-08-07 | 2023-08-07 | Coke oven gas closed circulation sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220625890U (en) |
-
2023
- 2023-08-07 CN CN202322112540.6U patent/CN220625890U/en active Active
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