CN115582331A - Coke oven gas metering orifice plate cleaning system and cleaning method thereof - Google Patents
Coke oven gas metering orifice plate cleaning system and cleaning method thereof Download PDFInfo
- Publication number
- CN115582331A CN115582331A CN202211292784.0A CN202211292784A CN115582331A CN 115582331 A CN115582331 A CN 115582331A CN 202211292784 A CN202211292784 A CN 202211292784A CN 115582331 A CN115582331 A CN 115582331A
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- Prior art keywords
- steam
- orifice plate
- metering
- pipeline
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000571 coke Substances 0.000 title claims abstract description 30
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 238000010926 purge Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 5
- 239000003034 coal gas Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Abstract
The invention discloses a cleaning system and a cleaning method for a coke oven gas metering orifice plate, belonging to the technical field of coke oven gas flow measurement, and comprising steam nozzles arranged at two sides of the metering orifice plate, wherein the metering orifice plate is arranged at the middle position of a horizontal metering pipeline, 4 steam nozzles are symmetrically arranged at two sides of the metering orifice plate, two steam pipelines are arranged above and below the metering pipeline, the steam pipelines are communicated with the steam nozzles, the metering pipeline is higher than the gas pipelines at two sides in the vertical direction, and the gas pipelines at the left side and the right side of the metering pipeline are respectively provided with a gas water seal. The labor and mechanical cost generated by dismantling and cleaning the orifice plate is reduced. Reduce the environmental protection risk that pipeline tar leads to out-of-order outflow because the orifice plate is demolishd.
Description
Technical Field
The invention relates to the technical field of coke oven gas flow measurement, in particular to a cleaning system and a cleaning method for a coke oven gas metering orifice plate.
Background
The coke oven gas is an important product and a consumable of a metallurgical enterprise, and is widely used in heating links of various productions such as steel making, iron making, steel rolling and the like due to high heat value; the consumption directly reflects the completion condition of each unit energy consumption assessment index. Therefore, the measurement of the coke oven gas flow is always one of the key points of energy measurement, but the influence of the factors on the measurement result must be solved to obtain accurate coke oven gas flow because the coke oven gas has the characteristics of low flow rate, low density, tar, dust, moisture and the like.
In steel enterprises, coke oven gas produced by a coking department is not ideal in purification, often has high water content and dust content, and also has high tar content, after the coke oven gas runs for a period of time, ash, naphthalene, tar and other impurities in the gas can be gradually deposited and adsorbed on the orifice plate, so that a gas pressure taking pipeline of the metering orifice plate is blocked, and tar is adhered to the throttling plate surface of the metering orifice plate, so that the coke oven gas cannot normally work. Particularly in winter, the temperature drops, which leads to crystallization of naphthalene and freezing of the water condensate. But also the difficulty of maintaining the instrument is multiplied.
Patent CN202411024U discloses an online washing device for flow meter orifice plates of coke oven gas orifices, which is characterized in that a high-pressure water gun is installed on one side of a flow plate in a pipeline, impurities deposited on one side of the flow plate are washed away by spraying high-pressure water, but the effect is poor, a spray opening needs to be rotated for washing, the operation is inconvenient, the device only washes one side of the flow plate, the other side does not wash, and the device does not have good treatment on the washed dirt and dirty water.
Therefore, a cleaning device for a coke oven gas metering orifice plate is urgently needed, and is particularly suitable for a coke oven system with incomplete gas purification.
Disclosure of Invention
The invention aims to provide a cleaning device for a coke oven gas metering plate, which can efficiently clean coke oven gas and has simple structure and outstanding effect.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a coke oven gas metering orifice plate cleaning system comprises steam nozzles arranged on two sides of a metering orifice plate, the metering orifice plate is arranged in the middle of a horizontal metering pipeline, the number of the steam nozzles is 4, the number of the steam nozzles is two, the number of the steam pipelines is two, the steam pipelines are communicated with the steam nozzles, the metering pipelines are higher than the number of the gas pipelines on the two sides in the vertical direction, and the gas pipelines on the left side and the right side of the metering pipelines are respectively provided with a gas water seal.
The technical scheme of the invention is further improved as follows: the measuring pipeline is connected with the gas pipelines on the left side and the right side through elbows, the length of the measuring pipeline is 20 times of the diameter of the gas pipeline, and the diameter of the measuring pipeline is the same as that of the gas pipeline.
The technical scheme of the invention is further improved as follows: the steam nozzles are arranged on each side of the metering orifice plate, the angle formed by the steam nozzles and the metering orifice plate is 45 degrees, the angle formed by the steam nozzles and the central axis of the metering pipeline is 60 degrees, and the two steam nozzles spray airflow to form rotary steam rotational flow.
The technical scheme of the invention is further improved as follows: the steam pipeline is provided with a steam valve, and high-temperature and high-pressure steam is conveyed in the steam pipeline.
A method for cleaning a coke oven gas metering orifice plate, which uses the cleaning system,
step A, closing a valve of a gas metering orifice plate pressure measuring device;
b, opening a steam valve on one side to purge through a steam nozzle, and pausing for 5-8 seconds after purging for a period of time;
c, opening a steam valve on the other side again to purge through a steam nozzle, and pausing for 5-8 seconds after purging for a period of time;
d, repeating the step B and the step C, mixing the swept impurities with steam condensate, flowing down a metering pipeline under the sweeping of steam, entering a coal gas water seal, and discharging to a special sewage pipe;
and E, opening a valve of the orifice plate pressure device after cleaning.
Due to the adoption of the technical scheme, the invention has the technical progress that:
what the steam jet that this application set up sprays is high temperature high pressure steam, and to the deposit of materials such as greasy dirt, fatlute more easily erode totally, steam jet's angle setting and position setting can be so that the air current that blows out at every side of metering orifice plate form rotatory steam whirl simultaneously, can not have sweeping the metering orifice plate at dead angle, effectively clear away impurity such as tar on the coke oven gas orifice plate. The oil stain and the sewage which are washed down can be drained in time and can not be retained in the metering pipeline.
The device can effectively remove impurities such as tar of the coke oven gas metering orifice plate, ensure accurate metering, and reduce production interruption caused by inaccurate metering due to tar blockage of the orifice plate and orifice plate removal. The labor and mechanical cost generated by dismantling and cleaning the orifice plate is reduced. Reduce the environmental protection risk that pipeline tar leads to unordered outflow because the orifice plate is demolishd.
Drawings
FIG. 1 is a schematic view of a coke oven gas metering orifice plate cleaning system of the present invention;
FIG. 2 is a schematic view of a steam nozzle on either side of a metering orifice plate according to the present invention;
FIG. 3 is a schematic view of a steam nozzle arrangement according to the present invention;
the device comprises a metering orifice plate 1, a metering pipeline 2, a gas pipeline 3, a gas water seal 4, a steam nozzle 5, a steam pipeline 6, a steam valve 7 and a steam valve.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1-2, a coke oven gas metering orifice plate cleaning system comprises steam nozzles 5 arranged on two sides of a metering orifice plate 1, the metering orifice plate 1 is arranged in the middle of a horizontal metering pipeline 2, 4 steam nozzles 5 are symmetrically arranged on two sides of the metering orifice plate 1, two steam pipelines 6 are arranged above and below the metering pipeline 2, the steam pipelines 6 are communicated with the steam nozzles 5, the metering pipeline 2 is higher than gas pipelines 3 on two sides in the vertical direction, and a gas water seal 4 is arranged on the gas pipelines 3 on the left side and the right side of the metering pipeline 2.
The number of the steam nozzles 5 is two on each side of the metering orifice plate 1, the two steam nozzles 5 on one side are centrosymmetric about one point on the central axis of the metering pipeline 2, the angle formed by the steam nozzles 5 and the metering orifice plate 1 is 45 degrees, the angle formed by the steam nozzles 5 and the central axis of the metering pipeline 2 is 60 degrees, and the air flow sprayed by the two steam nozzles 5 forms a rotating steam rotational flow.
The metering pipeline 2 is connected with the gas pipelines 3 on the left side and the right side through elbows, the length of the metering pipeline 2 is 20 times of the diameter of the gas pipeline 3, and the diameter of the metering pipeline 2 is the same as that of the gas pipeline 3.
The steam pipeline 6 is provided with a steam valve 7, and high-temperature and high-pressure steam is conveyed in the steam pipeline 6. High-temperature high-pressure steam is sprayed out through the steam nozzles 5, and due to the angle arrangement of the two steam nozzles 5 on one side, the sprayed high-temperature high-pressure steam forms a rotary steam rotational flow, so that one side of the metering orifice plate can be swept without dead angles.
The cleaning method of the coke oven gas metering orifice plate cleaning system comprises the following steps:
step A, closing a valve of a metering orifice plate pressure measuring device;
step B, opening a steam valve (7) on one side to purge through a steam nozzle (5), and pausing for 5-8 seconds after purging for a period of time;
c, opening a steam valve (7) on the other side again to purge through a steam nozzle (5), and pausing for 5-8 seconds after purging for a period of time;
d, repeating the step B and the step C, and enabling the swept impurity mixed steam condensate to flow down the metering pipeline 2 under the sweeping of steam, enter a coal gas water seal 4 and be discharged to a special sewage pipe;
and E, opening a valve of the orifice plate pressure device after cleaning.
Through the steps, the metering orifice plate is cleaned, and sewage cannot be reserved in the metering pipeline.
Claims (5)
1. A coke oven gas metering orifice plate cleaning system is characterized in that: including setting up steam nozzle (5) in metering orifice plate (1) both sides, metering orifice plate (1) sets up in the intermediate position of horizontal measurement pipeline (2), steam nozzle (5) set up 4 in metering orifice plate (1) bilateral symmetry, set up two steam conduit (6) from top to bottom in metering pipeline (2), steam conduit (6) and steam nozzle (5) are linked together, metering pipeline (2) are higher than gas conduit (3) of both sides in the vertical direction, all set up a coal gas water seal (4) on gas conduit (3) of metering pipeline (2) left and right sides.
2. The coke oven gas metering orifice plate cleaning system of claim 1, wherein: the metering pipeline (2) is connected with the gas pipelines (3) on the left side and the right side through elbows, the length of the metering pipeline (2) is 20 times of the diameter of the gas pipelines (3), and the diameter of the metering pipeline (2) is the same as that of the gas pipelines (3).
3. The coke oven gas metering orifice plate cleaning system of claim 1, wherein: the steam nozzles (5) are arranged on each side of the metering orifice plate (1), the two steam nozzles (5) on one side are centrosymmetric about one point on the central axis of the metering pipeline (2), the angle formed by each steam nozzle (5) and the metering orifice plate (1) is 45 degrees, the angle formed by each steam nozzle and the central axis of the metering pipeline (2) is 60 degrees, and the airflow sprayed by the two steam nozzles (5) forms rotary steam rotational flow.
4. The coke oven gas metering orifice plate cleaning system of claim 1, wherein: the steam pipeline (6) is provided with a steam valve (7), and high-temperature and high-pressure steam is conveyed in the steam pipeline (6).
5. A method for cleaning a metering orifice plate of coke oven gas is characterized by comprising the following steps: use of the cleaning system according to any one of claims 1-4, comprising the steps of:
step A, closing a valve of a gas metering orifice plate pressure measuring device;
step B, opening a steam valve (7) on one side to purge through a steam nozzle (5), and pausing for 5-8 seconds after purging for a period of time;
step C, opening a steam valve (7) on the other side again to perform purging through a steam nozzle (5), and stopping for 5-8 seconds after purging for a period of time;
d, repeating the step B and the step C, mixing the purged impurities with steam condensate, flowing down the metering pipeline (2) under the purging of the steam, entering a coal gas water seal (4), and discharging to a special sewage pipe;
and E, opening a valve of the orifice plate pressure device after cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211292784.0A CN115582331A (en) | 2022-10-21 | 2022-10-21 | Coke oven gas metering orifice plate cleaning system and cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211292784.0A CN115582331A (en) | 2022-10-21 | 2022-10-21 | Coke oven gas metering orifice plate cleaning system and cleaning method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115582331A true CN115582331A (en) | 2023-01-10 |
Family
ID=84779183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211292784.0A Pending CN115582331A (en) | 2022-10-21 | 2022-10-21 | Coke oven gas metering orifice plate cleaning system and cleaning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115582331A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003164815A (en) * | 2001-11-29 | 2003-06-10 | Shin Etsu Chem Co Ltd | Method of removing matching oil and device for the same |
| CN1537819A (en) * | 2003-04-16 | 2004-10-20 | ��Խ��ѧ��ҵ��ʽ���� | Method for preparing glass stick |
| JP2005265608A (en) * | 2004-03-18 | 2005-09-29 | Kurita Water Ind Ltd | Stain removing method |
| CN202101718U (en) * | 2011-04-28 | 2012-01-04 | 山东三木自动化有限公司 | Blowing device for coke oven gas flow metering |
| CN202411024U (en) * | 2011-12-23 | 2012-09-05 | 上海宝钢化工有限公司 | Orifice plate online flushing device of coke oven gas orifice flowmeter |
| RU2647172C1 (en) * | 2017-05-29 | 2018-03-14 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Burner device |
-
2022
- 2022-10-21 CN CN202211292784.0A patent/CN115582331A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003164815A (en) * | 2001-11-29 | 2003-06-10 | Shin Etsu Chem Co Ltd | Method of removing matching oil and device for the same |
| CN1537819A (en) * | 2003-04-16 | 2004-10-20 | ��Խ��ѧ��ҵ��ʽ���� | Method for preparing glass stick |
| JP2005265608A (en) * | 2004-03-18 | 2005-09-29 | Kurita Water Ind Ltd | Stain removing method |
| CN202101718U (en) * | 2011-04-28 | 2012-01-04 | 山东三木自动化有限公司 | Blowing device for coke oven gas flow metering |
| CN202411024U (en) * | 2011-12-23 | 2012-09-05 | 上海宝钢化工有限公司 | Orifice plate online flushing device of coke oven gas orifice flowmeter |
| RU2647172C1 (en) * | 2017-05-29 | 2018-03-14 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Burner device |
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