CN114623387A - Fully-closed drainage method for coke oven gas drainer - Google Patents
Fully-closed drainage method for coke oven gas drainer Download PDFInfo
- Publication number
- CN114623387A CN114623387A CN202210247110.2A CN202210247110A CN114623387A CN 114623387 A CN114623387 A CN 114623387A CN 202210247110 A CN202210247110 A CN 202210247110A CN 114623387 A CN114623387 A CN 114623387A
- Authority
- CN
- China
- Prior art keywords
- coke oven
- oven gas
- pipeline
- gas
- drainer
- 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.)
- Pending
Links
- 239000000571 coke Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 24
- 238000005485 electric heating Methods 0.000 claims abstract description 14
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 230000009286 beneficial 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 28
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 21
- 238000005406 washing Methods 0.000 description 11
- 239000013078 crystal Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000003912 environmental pollution Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/14—Arrangements for supervising or controlling working operations for eliminating water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coke Industry (AREA)
Abstract
The invention belongs to the technical field of coke oven gas purification and transportation, and particularly relates to a fully-closed drainage method of a coke oven gas drainer, which comprises the following steps: condensed water generated by the coke oven gas conveyed in the coke oven gas pipeline is discharged to the observable electric heating sight glass through the drainer and the overflow pipeline in sequence; condensed water flows into an underground tank by gravity for storage; and gas in the underground tank sequentially enters a fan front negative pressure pipeline through a tail gas collecting pipeline, and forms negative pressure in the machine front pipeline in the process of conveying the coke oven gas by a coke oven gas purifying blower in a compressing way to provide power for introducing the gas in the underground tank into the fan front negative pressure pipeline. The invention realizes the full-closed collection of the gas in the underground tank, realizes the pressure balance when the liquid level of the coke oven gas condensed water in the underground tank changes, and is beneficial to the discharge of the coke oven gas condensed water.
Description
Technical Field
The invention belongs to the technical field of coke oven gas purification and transportation, and particularly relates to a fully-closed drainage method of a coke oven gas drainer.
Background
At present, in the technical field of coke oven gas purification and transportation, substances such as naphthalene and tar in the coke oven gas can be mixed into the coke oven gas to be condensed and separated out into water, and the substances are easily hung on the pipe wall to cause unsmooth pipeline, so that observation ports are arranged at the outlets of overflow pipelines of coke oven gas drainers to observe whether the coke oven gas drainers normally operate or not, and the phenomena of unsmooth drainage and even pipeline blockage are discovered and treated to ensure the normal operation of the coke oven gas drainers.
The observation port of the overflow pipeline of the existing coke oven gas drainer adopts an open type bell mouth mode, which is simple and convenient and easy to observe, but has the problems that the coke oven gas condensate water in the overflow pipeline of the drainer is completely exposed in the environment, and volatile organic compounds contained in the condensate water discharged by the drainer volatilize into the air to cause environmental pollution; in addition, condensed water discharged from the drainer finally enters an underground tank (pool), and the upper surface of the underground tank (pool) is required to be provided with dispersion holes so that the condensed water can automatically flow and be discharged, and volatile organic matters contained in the water can enter the atmosphere through dispersion in the process of storing the condensed water, which can also cause environmental pollution.
Disclosure of Invention
The invention provides a fully-closed drainage method of a coke oven gas drainer, aiming at solving the problem of environmental pollution caused by the fact that the coke oven gas condensate water cannot be fully closed in the processes of drainage and storage of the coke oven gas condensate water through the drainer.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fully-closed drainage method of a coke oven gas drainer specifically comprises the following steps:
condensed water generated by the coke oven gas conveyed in the coke oven gas pipeline is discharged to the observable electric heating sight glass through the drainer and the overflow pipeline in sequence, and the full-flow condition of the gas drainer can be observed; condensed water flows into an underground tank by gravity for storage; and gas in the underground tank sequentially enters a fan front negative pressure pipeline through a tail gas collecting pipeline, and forms negative pressure in the machine front pipeline in the process of conveying the coke oven gas by a coke oven gas purifying blower in a compressing way to provide power for introducing the gas in the underground tank into the fan front negative pressure pipeline.
Furthermore, the coke oven gas condensate water stored in the underground tank is conveyed outwards by a condensate discharge pump.
Furthermore, the condensate discharge pump is connected with a condensate discharge valve, the condensate discharge valve controls the discharge and the cutting of condensate water in the underground tank, and the whole process of the drainage and the storage of the coke oven gas condensate water realizes full sealing.
Further, an electric tracing is arranged inside the observable electric heating type sight glass.
Further, the temperature of the observable electric heating sight glass is controlled to be above 55 ℃. The objects such as naphthalene, tar and the like in the coke oven gas are prevented from being mixed into the coke oven gas, being condensed and separated out of water, and being hung on the sight glass to cause unsmooth observation, and the observation sight is blocked.
Further, the temperature of the observable electrically heated sight glass is controlled at 55 ℃.
Furthermore, a gas pressure regulating valve is arranged on the tail gas collecting pipeline.
The invention has the beneficial effects that:
1. according to the fully-closed drainage method of the coke oven gas drainer, the original fully-open type bell-mouth observation port is changed into the observable type electric heating sight glass, the running condition of the drainer can be observed in real time, the contact of coke oven gas condensate water discharged by the drainer with the environment is blocked, volatile organic matters are prevented from volatilizing into the environment, and the problem of environmental pollution caused by the volatile organic matters is avoided.
2. According to the fully-closed drainage method of the coke oven gas drainer, the original diffusion pipeline is changed into the tail gas collecting system, and the gas containing volatile organic compounds in the underground tank is conveyed into the front negative pressure pipeline of the coke oven gas purifying blower through the collecting pipeline, so that the diffusion is avoided, the system pressure is balanced, and the system operation stability is improved.
3. The totally-closed drainage method of the coke oven gas drainer adopts the electric heating sight glass, so that the temperature is controlled to be more than 55 ℃, and the problem of difficult observation caused by that organic matters such as naphthalene, tar and the like in the coke oven gas condensate water are condensed and separated out due to low temperature and are attached to the surface of the sight glass to pollute the sight glass is effectively solved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic view of a fully-closed drainage method of a coke oven gas drainer in embodiment 1.
In the figure, 1-coke oven gas pipeline, 2-drainer, 3-overflow pipeline, 4-observable electric heating sight glass, 5-underground tank, 6-tail gas collecting pipeline, 7-gas pressure regulating valve, 8-negative pressure pipeline in front of fan, 9-coke oven gas purifying blower, 15-condensate discharging pump, 11-condensate discharging valve.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A fully-closed drainage method of a coke oven gas drainer specifically comprises the following steps:
as shown in fig. 1, condensed water generated by coke oven gas conveyed in a coke oven gas pipeline 1 is respectively discharged to an observable electric heating sight glass 4 through a drainer 2 and an overflow pipeline 3, and the full flow condition of the gas drainer can be observed; finally, the condensed water flows into the underground tank 5 by gravity for storage; gas in the underground tank 5 sequentially enters a fan front negative pressure pipeline 8 through a tail gas collecting pipeline 6 and a gas pressure regulating valve 7, and negative pressure is formed in the machine front pipeline in the process of conveying coke oven gas by a coke oven gas purifying blower 9 in a compressing way to provide power for introducing the gas in the underground tank 5 into the fan front negative pressure pipeline 8; the coke oven gas condensate water stored in the underground tank 5 is conveyed outwards by a condensate discharge pump 15 according to the requirement, and the condensate water discharge in the underground tank 5 is controlled by a condensate discharge valve 11 to be cut off; the whole process of drainage and storage of coke oven gas condensate water realizes full sealing.
Example 2
A fully-closed drainage method of a coke oven gas drainer is applied to a benzene washing procedure, and specifically comprises the following steps:
coke oven gas from the anhydrous ammonia unit enters a benzene washing tower through a gas pipeline, and the coke oven gas reversely contacts with lean oil in the benzene washing tower to remove benzene in the gas; the coal gas which is contacted with the lean oil and then is subjected to benzene impurity removal enters a coke oven gas pipeline again and enters a water washing desulfurization section; the gas contacted with the lean oil enters a coke oven gas pipeline, condensate in the pipeline enters a drainer through a liquid discharge pipeline and then overflows into an underground groove through an overflow pipeline, and an observable electric heating sight glass is arranged at the overflow pipeline to observe the operation condition of the drainer.
Specifically, the coke oven gas drainer fully-closed drainage method provided by the embodiment is applied to a benzene washing procedure, coke oven gas returns to a pipeline after the coke oven gas reversely contacts with lean oil in a benzene washing tower, but the lean oil in the coke oven gas enters the coke oven gas pipeline, the lean oil forms crystals when being cooled, and crystalline substances block an overflow pipeline behind a drainage pipeline and the drainer, so that the coke oven gas drainage pipeline is not smooth and even blocks the pipeline. After the coke oven gas drainer fully-closed drainage method is applied, because the observable electric heating sight glass of the invention can heat the condensate to above 55 ℃, the lean oil does not undergo a quenching phenomenon at the position, and crystals can not be formed, thereby effectively solving the problem that the drainage pipeline and the overflow pipeline are blocked by the lean oil crystals, simultaneously preventing the problem that the lean oil crystals are attached to the surface of the sight glass to pollute the sight glass, and greatly avoiding the problem of inconvenient observation caused by the attachment of the crystals.
Example 3
A fully-closed drainage method of a coke oven gas drainer is applied to a middle-cold naphthalene washing process, and specifically comprises the following steps:
the coke oven gas enters a middle-cooling naphthalene washing process through a condensation blast process, and after naphthalene substances in the coke oven gas are removed in a naphthalene washing tower, the coke oven gas returns to a coke oven gas pipeline again and enters an anhydrous ammonia unit; the coke oven gas without naphthalene substances enters a coke oven gas pipeline, condensate in the pipeline enters a drainer through a liquid discharge pipe and then overflows into an underground groove through an overflow pipeline, and an observable electric heating sight glass is arranged at the overflow pipeline to observe the operation condition of the drainer.
Specifically, the fully-closed drainage method of the coke oven gas drainer provided by the invention is applied to the process of washing naphthalene by medium-cold, a small amount of naphthalene substances possibly mixed with the coke oven gas after washing the naphthalene are not removed and enter a gas pipeline, and the naphthalene substances can form crystallized substances to block the drainage pipeline when meeting cold, so that the problem of unsmooth operation of the drainer is caused. After the coke oven gas drainer fully-closed drainage method is applied, because the observable electric heating sight glass can heat the condensate to above 55 ℃, naphthalene can not be formed in the drainage pipeline, the problem that the drainage pipeline and the overflow pipeline are blocked by naphthalene crystals is effectively solved, the problem that the sight glass is polluted because crystals are attached to the surface of the sight glass is also prevented, and the problem of inconvenient observation caused by attachment of the crystals is greatly avoided.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions should be within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure and the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A fully-closed drainage method of a coke oven gas drainer is characterized by comprising the following steps:
condensed water generated by the coke oven gas conveyed in the coke oven gas pipeline is discharged to the observable electric heating sight glass through the drainer and the overflow pipeline in sequence; condensed water flows into an underground tank by gravity for storage; and gas in the underground tank sequentially enters a fan front negative pressure pipeline through a tail gas collecting pipeline, and forms negative pressure in the machine front pipeline in the process of conveying the coke oven gas by a coke oven gas purifying blower in a compressing way to provide power for introducing the gas in the underground tank into the fan front negative pressure pipeline.
2. The fully-closed drainage method of the coke oven gas drainer as claimed in claim 1, wherein the condensed water of the coke oven gas stored in the underground tank is transported outwards by a condensate drain pump.
3. The fully-closed drainage method of the coke oven gas drainer of claim 2, wherein the condensate drain pump is connected with a condensate drain valve.
4. The fully-closed drainage method of the coke oven gas drainer of claim 1, wherein an electric tracing is arranged inside the observable electric heating sight glass.
5. The fully-closed drainage method of the coke oven gas drainer of claim 1, wherein the temperature of the observable electrically heated sight glass is controlled to be above 55 ℃.
6. The fully-closed drainage method of the coke oven gas drainer of claim 5, wherein the temperature of the observable electrically heated sight glass is controlled at 55 ℃.
7. The fully-closed drainage method of the coke oven gas drainer of claim 1, wherein a gas pressure regulating valve is arranged on the tail gas collecting pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247110.2A CN114623387A (en) | 2022-03-14 | 2022-03-14 | Fully-closed drainage method for coke oven gas drainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247110.2A CN114623387A (en) | 2022-03-14 | 2022-03-14 | Fully-closed drainage method for coke oven gas drainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114623387A true CN114623387A (en) | 2022-06-14 |
Family
ID=81902862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210247110.2A Pending CN114623387A (en) | 2022-03-14 | 2022-03-14 | Fully-closed drainage method for coke oven gas drainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114623387A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201322191Y (en) * | 2008-12-23 | 2009-10-07 | 南京钢铁联合有限公司 | Water draining device for gas condensate |
| CN202852422U (en) * | 2012-10-30 | 2013-04-03 | 邢台钢铁有限责任公司 | Negative pressure collecting device for tail gas of mechanization defecator |
| CN103075640A (en) * | 2013-02-01 | 2013-05-01 | 济钢集团有限公司 | Anti-clogging type water seal device for coke oven gas conveying pipeline |
| CN204420582U (en) * | 2014-12-22 | 2015-06-24 | 宝钢工业炉工程技术有限公司 | For the discharge of phenolic water device of oven gas pipe line |
| KR102012128B1 (en) * | 2018-04-23 | 2019-08-19 | 현대제철 주식회사 | Apparatus for draining condenssation water |
-
2022
- 2022-03-14 CN CN202210247110.2A patent/CN114623387A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201322191Y (en) * | 2008-12-23 | 2009-10-07 | 南京钢铁联合有限公司 | Water draining device for gas condensate |
| CN202852422U (en) * | 2012-10-30 | 2013-04-03 | 邢台钢铁有限责任公司 | Negative pressure collecting device for tail gas of mechanization defecator |
| CN103075640A (en) * | 2013-02-01 | 2013-05-01 | 济钢集团有限公司 | Anti-clogging type water seal device for coke oven gas conveying pipeline |
| CN204420582U (en) * | 2014-12-22 | 2015-06-24 | 宝钢工业炉工程技术有限公司 | For the discharge of phenolic water device of oven gas pipe line |
| KR102012128B1 (en) * | 2018-04-23 | 2019-08-19 | 현대제철 주식회사 | Apparatus for draining condenssation water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208694292U (en) | A kind of liquid separation water seal integrated tank | |
| CN114623387A (en) | Fully-closed drainage method for coke oven gas drainer | |
| CN205151890U (en) | A prevent blockking up aeration equipment for MBR membrane system | |
| CN207554880U (en) | A kind of blast furnace piped gas quick cutting device | |
| CN205119874U (en) | Petrifaction oil refining is cooling device for coker | |
| CN208687763U (en) | Flue gas waste heat recovery system | |
| CN205073709U (en) | Novel deareator | |
| CN201997133U (en) | Automatic sewage drainage device | |
| CN103528388B (en) | Closed ferroalloy furnace coal gas dry method purification and recovery system | |
| CN207547188U (en) | A kind of device for clearing up impurity in fuelgas pipeline | |
| CN105861078B (en) | A kind of bottom of tower draining of shaft furnace gas washer and water seal arrangement | |
| CN209752449U (en) | Bubble dust remover | |
| CN209325815U (en) | A kind of desulfurization duct acid solution collecting pipe positive pressure water drainage device | |
| CN2151804Y (en) | Waste gas purifier | |
| CN208023678U (en) | Vacuum work station | |
| CN216935222U (en) | Tar separator | |
| CN206911071U (en) | A kind of NHD solution recovery systems | |
| CN207430017U (en) | Tail gas recycle cleaning system | |
| CN215610472U (en) | Gaseous zero release equipment of coke-oven plant VOCs | |
| CN113203048B (en) | Safe liquid drainage device and method for gas system at inlet and outlet of aspirator | |
| CN110608927A (en) | Tar sampler in biomass gasification gas and working method thereof | |
| CN217029224U (en) | Vacuum pump protection device for lithium battery production | |
| CN215048811U (en) | Ammonia still arranges sediment device and arranges sediment, tail gas treatment integrated device and system | |
| CN217528537U (en) | Oil smoke purifier exhaust waste oil pipeline assembly | |
| CN215430737U (en) | Simple ventilating device capable of recycling waste acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |