CN108506735A - A kind of coking waste gas recovery governing system - Google Patents
A kind of coking waste gas recovery governing system Download PDFInfo
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- CN108506735A CN108506735A CN201810581061.XA CN201810581061A CN108506735A CN 108506735 A CN108506735 A CN 108506735A CN 201810581061 A CN201810581061 A CN 201810581061A CN 108506735 A CN108506735 A CN 108506735A
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- pressure
- valve
- waste gas
- storage tank
- gas
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Classifications
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- 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
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of coking waste gas recovery governing systems, including several storage tanks and gas sampling pipeline, and waste gas exhaust pipe is connected between the storage tank and gas sampling pipeline.The coking waste gas recovery governing system further includes nitrogen stabilization pressure device, groove top safety device, and exhaust gas pressure regulating device, groove top pressure monitoring device and manifold oxygen contents are monitored on-line and quick cutting device.The present invention realizes the hermetic reclaim of exhaust gas in the storage tank of coking region；By being accurately controlled to each storage tank, energy consumption is significantly reduced；Solve exhaust gas in slot existing for existing collection system mutually to go here and there, lack the problems such as necessary on-line monitoring facility, it is ensured that storage tank, waste gas collecting system safety, so that exhaust gas in the storage tank of coking region has been obtained safe and effective improvement.
Description
Technical field
The present invention relates to a kind of coking waste gas recovery governing systems, belong to coking waste gas recovery Treatment process field.
Background technology
The coal gas dispatch of coking region is largely used to the storage tank of storage material with being equipped in purification process.Object in these storage tanks
Material has stronger volatility at the storage temperature, has a certain amount of exhaust gas effusion.These exhaust gas have it is inflammable, explosive, have
It is malicious, irritant, be corrosive, complicated component the features such as, more serious pollution, Er Qieyan can be not only caused to atmospheric environment
Ghost image rings the physical and mental health of worker.
In the prior art, coking zone off gas mostly directly puts idle discharge by storage tank floss hole.Even if exhaust gas is arranged
Collection processing system implementing is also only that simply the Waste gas outlet of each storage tank is connected, and is carried out in exhaust gas supervisor end simple
Pressure control after be introduced directly into coal gas system.The problem of gas sampling processing system is primarily present has：1, due to each storage tank
The series connection of all kinds of storage tanks is simply carried out gas sampling and easily caused respectively by the difference of interior storage material variety, characteristic and storage temperature
Exhaust gas is mutually gone here and there in storage tank, or even causes the major industrial accidents such as fire, explosion；2, no oxygen content of waste gas on-line monitoring is set
It applies, oxygen content of waste gas can not be measured in real time, exhaust gas can in the presence of what is exploded when oxygen content reaches a certain level in exhaust gas
Can, and coal gas dispatch system oxygen content can be adversely affected, or even coal gas dispatch system electric fishing chaser is caused, influence coal
The normal production of gas refining system；3, control pressurer system is too simple coarse, not enough precisely, and is arranged without storage tank pressure detecting
It applies, be easy to cause storage tank and inhale flat or be split up.
Invention content
Technical problem to be solved by the present invention lies in a kind of coking waste gas recovery governing system is provided, can combine all kinds of
Coking exhaust gas is safely and effectively introduced coal gas negative pressure system by the operating condition of storage tank.
To solve the above-mentioned problems, the technical solution adopted by the present invention is as follows：
A kind of coking waste gas recovery governing system, including several storage tanks and gas sampling pipeline, the storage tank and exhaust gas are received
Waste gas exhaust pipe is connected between collection pipeline, the coking waste gas recovery governing system further includes nitrogen stabilization pressure device, groove top peace
Full device, exhaust gas pressure regulating device, groove top pressure monitoring device and manifold oxygen contents on-line monitoring and quick cutting device,
The nitrogen stabilization pressure device includes the nitrogen inlet duct being connected between nitrogen supervisor and storage tank, the nitrogen air inlet
First shut-off valve, the first regulating valve, site pressure table and first pressure remote transmitter, first regulating valve are installed on pipe
It is mutually chain with first pressure remote transmitter,
The groove top safety device includes the deadweight safety valve and breather valve being mounted at the top of storage tank, the breather valve and storage
It is connected by pipeline between slot,
The exhaust gas pressure regulating device include be mounted on the waste gas exhaust pipe on the second regulating valve and butterfly valve, it is described
One end of waste gas exhaust pipe is connected on pipeline, and the other end is connected with gas sampling pipeline,
The groove top pressure monitoring device includes second pressure remote transmitter, the second pressure remote transmitter and
Two regulating valves are mutually chain,
The manifold oxygen contents on-line monitoring and quick cutting device include the oxygen content being mounted on gas sampling pipeline
On-line computing model, third regulating valve, third pressure remote transmitter, gate valve and desorption tube, the third regulating valve and third
Pressure remote transmitter is mutually chain, and fast cut valve is equipped on the desorption tube, and gate valve is mounted on desorption tube and coal gas negative pressure system
Between.
Further, it further includes steamtraced piping, and the steamtraced piping is divided into three tunnels, the first via and breather valve
One end is connected, and the other end of breather valve is connected with condensate drain, and steam enters condensate liquid after breather valve and is discharged
Guan Zhong；Waste gas exhaust pipe setting is close on second tunnel of steamtraced piping, and the setting of gas sampling pipeline is close on third road, described cold
The tail end of drip pipe and the tail end on the second tunnel, third road are separately installed with steam trap.
Further, it further includes hot ammonium hydroxide delivery pipe, and number is connected between the hot ammonium hydroxide delivery pipe and gas sampling pipeline
The water inlet pipe of root is equipped with third shut-off valve on the water inlet pipe.
Further, the quantity of the breather valve is two.
The function and principle of each device are as follows in the present invention：
Nitrogen stabilization pressure device：When being less than setting value when pressure declines in storage tank, the first regulating valve is opened, and nitrogen is by nitrogen
Supervisor injects nitrogen into slot through nitrogen inlet duct, and storage tank is made to be in slight positive pressure state, avoids entering air in storage tank or be inhaled
The generation of flat equal damages.
Groove top safety device：When system jam, air is filled into storage tank or breathes out exhaust gas outward, it is ensured that storage tank
Interior pressure is in safe range always, prevents the influence to production system.
Groove top pressure monitoring device：For being monitored in real time to groove top pressure；
Exhaust gas pressure regulating device：Control is adjusted to storage tank exhaust gas discharge pressure, the of exhaust gas pressure regulating device
Two regulating valves and the second pressure remote transmitter of groove top pressure monitoring device are mutually chain, when pressure is higher than setting pressure in slot
When, the second regulating valve is gradually opened is discharged gas by waste gas exhaust pipe to gas sampling pipeline.When pressure is less than setting in slot
The second regulating valve is in full-shut position when pressure, can mutually be gone here and there to avoid exhaust gas in each storage tank.
Manifold oxygen contents are monitored on-line and quick cutting device：Oxygen content on-line computing model is in real time to the oxygen content in exhaust gas
It is monitored, when oxygen content exceeds setting value, the second shut-off valve quickly cuts off the exhaust gas that exhaust gas is delivered to coal gas refining system
Pipeline, the fast cut valve on desorption tube are opened, and exhaust gas changes to be discharged by desorption tube.
Steamtraced piping and hot ammonium hydroxide delivery pipe：It can prevent the impurity such as naphthalene, tar from condensing.If there is condensate liquid generation,
The condensate drain and steam trap that can be arranged by system drain into specified underground tank.
Compared with prior art, the beneficial effects of the present invention are：
1, the hermetic reclaim for realizing exhaust gas in the storage tank of coking region, so that exhaust gas has been obtained safety has
Effect is administered.
2, the automatic collection for realizing coking region storage tank exhaust gas is administered, and manpower and materials are reduced.
3, each storage tank is accurately controlled, to make the storage tank most of the time not generate " breathing ", can be effectively subtracted
The magnitude of recruitment of few nitrogen, is greatly reduced energy consumption.
4, it solves exhaust gas in slot existing for existing collection system mutually to go here and there, lack the problems such as necessary on-line monitoring facility,
Ensure the safety of storage tank, waste gas collecting system, at the same also eliminate oxygen content coal gas refining system is normally produced it is unfavorable
It influences.
5, the occurrence of impurity such as naphthalene, tar in coking exhaust gas can be effectively prevent easily to crystallize, reduce line clogging, drop
The workload of low maintenance repair and maintenance.
Description of the drawings
Fig. 1 is the flow sheet of one embodiment of the present invention.
Fig. 2 is the enlarged drawing of box part A in Fig. 1.
Fig. 3 is the enlarged drawing of box part B in Fig. 1.
Fig. 4 is the enlarged drawing of manifold oxygen contents on-line monitoring and quick cutting device 6 in the present invention.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.According to following explanation, originally
The purpose, technical scheme and advantage of invention will be apparent from.It should be noted that described embodiment is the preferred of the present invention
Embodiment, instead of all the embodiments.
In conjunction with shown in Fig. 1, a kind of coking waste gas recovery governing system, including several storage tanks 1 and gas sampling pipeline 4a, nitrogen
Gas stable-pressure device 2, groove top safety device 3, exhaust gas pressure regulating device 4, groove top pressure monitoring device 5 and manifold oxygen contents are online
Monitoring and quick cutting device 6, waste gas exhaust pipe 4b is connected between the storage tank 1 and gas sampling pipeline 4a.
In conjunction with Fig. 2 and Fig. 3, the nitrogen stabilization pressure device 2 include be connected to nitrogen supervisor 2a and storage tank between nitrogen into
First shut-off valve 2c, the first regulating valve 2d, the pressures of site pressure table 2e and first are installed on tracheae 2b, the nitrogen inlet duct 2b
Power remote transmitter 2f, the first regulating valve 2d and first pressure remote transmitter 2f phases are chain.
The groove top safety device 3 includes the deadweight safety valve 3a and breather valve 3b being mounted at the top of storage tank, the breathing
It is connected by pipeline 3c between valve and storage tank.
The exhaust gas pressure regulating device 4 includes the second regulating valve 4c and butterfly valve being mounted on the waste gas exhaust pipe 4b
One end of 4d, the waste gas exhaust pipe 4b are connected on pipeline 3c, and the other end is connected with gas sampling pipeline 4a.
The groove top pressure monitoring device 5 includes second pressure remote transmitter 5a, the second pressure remote transmitter
5a and the second regulating valve 4c phases are chain.
In conjunction with shown in Fig. 4, the manifold oxygen contents on-line monitoring and quick cutting device 6 include being mounted on gas sampling pipe
Oxygen content on-line computing model 6a, third regulating valve 6b, third pressure remote transmitter 6c, gate valve 6d on road 4a and desorption tube
13, the third regulating valve 6b and third pressure remote transmitter 6c phases are chain, and fast cut valve 14 is equipped on the desorption tube 13,
The gate valve 6d is mounted between desorption tube 13 and coal gas negative pressure system 7.In coal gas negative pressure system, 7a is coal gas primary cooler,
7b is direct-cooled tower, and 7c is gas-fog separator, and 7d is turnover panel, and 7e is gas-blowing engine.
Combined with Figure 1 and Figure 2, the invention also includes steamtraced piping 8, the steamtraced piping 8 divides for two-way, and first
Road 8a is connected with one end of breather valve 3b, and the other end of breather valve 3b is connected with condensate drain 11, and steam is by exhaling
Enter in condensate drain 11 after inhaling valve, the second road 8b of steamtraced piping 8 is close to waste gas exhaust pipe 4b settings, third road
8c is close to the tail end difference of the 4a settings of gas sampling pipeline, the tail end of the condensate drain and the second road 8b, third road 8c
Steam trap 12 is installed.
The invention also includes hot ammonium hydroxide delivery pipe 9, number is connected between the hot ammonium hydroxide delivery pipe 9 and gas sampling pipeline 4a
The water inlet pipe 10 of root is equipped with third shut-off valve 9a on the water inlet pipe 10.
The function and principle of each device are as follows in the present invention：
Nitrogen stabilization pressure device：When being less than setting value when pressure declines in storage tank, the first regulating valve is opened, and nitrogen is by nitrogen
Supervisor injects nitrogen into slot through nitrogen inlet duct, and storage tank is made to be in slight positive pressure state, avoids entering air in storage tank or be inhaled
The generation of flat equal damages.
Groove top safety device：When system jam, air is filled into storage tank or breathes out exhaust gas outward, it is ensured that storage tank
Interior pressure is in safe range always, prevents the influence to production system.
Groove top pressure monitoring device：For being monitored in real time to groove top pressure；
Exhaust gas pressure regulating device：Control is adjusted to storage tank exhaust gas discharge pressure, the of exhaust gas pressure regulating device
Two regulating valves and the second pressure remote transmitter of groove top pressure monitoring device are mutually chain, when pressure is higher than setting pressure in slot
When, the second regulating valve is gradually opened is discharged gas by waste gas exhaust pipe to gas sampling pipeline.When pressure is less than setting in slot
The second regulating valve is in full-shut position when pressure, can mutually be gone here and there to avoid exhaust gas in each storage tank.
Manifold oxygen contents are monitored on-line and quick cutting device：Oxygen content on-line computing model is in real time to the oxygen content in exhaust gas
It is monitored, when oxygen content exceeds setting value, the second shut-off valve quickly cuts off the exhaust gas that exhaust gas is delivered to coal gas refining system
Pipeline, the fast cut valve on desorption tube are opened, and exhaust gas changes to be discharged by desorption tube.
Steamtraced piping and hot ammonium hydroxide delivery pipe：It can prevent the impurity such as naphthalene, tar from condensing.If there is condensate liquid generation,
The condensate drain and steam trap that can be arranged by system drain into specified underground tank.
The above is only the description explanation of the preferred embodiment of the present invention, and not limiting the scope of the present invention, shows
So, any technical person familiar with the field is based on above-described embodiment, can readily occur in replacement or variation to obtain other implementations
Example, these are covered by the protection scope of the present invention.
Claims (4)
1. a kind of coking waste gas recovery governing system, including several storage tanks (1) and gas sampling pipeline (4a), the storage tank (1)
Waste gas exhaust pipe (4b) is connected between gas sampling pipeline (4a), it is characterised in that：
The coking waste gas recovery governing system further includes nitrogen stabilization pressure device (2), groove top safety device (3), exhaust gas pressure tune
Regulating device (4), groove top pressure monitoring device (5) and manifold oxygen contents on-line monitoring and quick cutting device (6),
The nitrogen stabilization pressure device (2) includes the nitrogen inlet duct (2b) for being connected to nitrogen supervisor (2a) between storage tank, described
First shut-off valve (2c), the first regulating valve (2d), site pressure table (2e) and first pressure are installed on nitrogen inlet duct (2b)
Remote transmitter (2f), first regulating valve (2d) and first pressure remote transmitter (2f) are mutually chain,
The groove top safety device (3) includes the deadweight safety valve (3a) and breather valve (3b) being mounted at the top of storage tank, described to exhale
It inhales and is connected by pipeline (3c) between valve and storage tank,
The exhaust gas pressure regulating device (4) includes the second regulating valve (4c) being mounted on the waste gas exhaust pipe (4b) and butterfly
One end of valve (4d), the waste gas exhaust pipe (4b) is connected on pipeline (3c), and the other end is connected with gas sampling pipeline (4a)
It connects,
The groove top pressure monitoring device (5) includes second pressure remote transmitter (5a), the second pressure remote transmitter
(5a) and the second regulating valve (4c) are mutually chain,
The manifold oxygen contents on-line monitoring and quick cutting device (6) include that the oxygen being mounted on gas sampling pipeline (4a) contains
Measure on-line computing model (6a), third regulating valve (6b), third pressure remote transmitter (6c), gate valve (6d) and desorption tube
(13), the third regulating valve (6b) and third pressure remote transmitter (6c) are mutually chain, are equipped on the desorption tube (13)
Fast cut valve (14), the gate valve (6d) are mounted between desorption tube (13) and coal gas negative pressure system (7).
2. coking waste gas recovery governing system according to claim 1, it is characterised in that：
It further includes steamtraced piping (8), and the steamtraced piping (8) is divided into three tunnels, the first via (8a) and breather valve
The one end of (3b) is connected, and the other end of breather valve (3b) is connected with condensate drain (11), and steam is after breather valve
Into in condensate drain (11), waste gas exhaust pipe (4b) setting, third are close in the second tunnel (8b) of steamtraced piping (8)
It is close to gas sampling pipeline (4a) setting, the tail end of the condensate drain and the second tunnel (8b), third road (8c) in road (8c)
Tail end be separately installed with steam trap (12).
3. coking waste gas recovery governing system according to claim 1, it is characterised in that：
It further includes hot ammonium hydroxide delivery pipe (9), is connected between the hot ammonium hydroxide delivery pipe (9) and gas sampling pipeline (4a) several
Water inlet pipe (10), third shut-off valve (9a) is installed on the water inlet pipe (10).
4. coking waste gas recovery governing system according to claim 1, it is characterised in that：
The quantity of the breather valve (3b) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810581061.XA CN108506735B (en) | 2018-06-07 | 2018-06-07 | Coking waste gas recovery and treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810581061.XA CN108506735B (en) | 2018-06-07 | 2018-06-07 | Coking waste gas recovery and treatment system |
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| Publication Number | Publication Date |
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| CN108506735A true CN108506735A (en) | 2018-09-07 |
| CN108506735B CN108506735B (en) | 2023-06-27 |
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| CN201810581061.XA Active CN108506735B (en) | 2018-06-07 | 2018-06-07 | Coking waste gas recovery and treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109316893A (en) * | 2018-12-03 | 2019-02-12 | 河北格源环保科技有限公司 | A kind of cold bulging volatilization gas zero-emission negative pressure recovery system |
| CN109847546A (en) * | 2019-02-15 | 2019-06-07 | 邢台恒禄科技有限公司 | A kind of environmental protection zero-emission tail gas treatment process |
| CN111120858A (en) * | 2019-11-25 | 2020-05-08 | 宣化钢铁集团有限责任公司 | Exhaust gas recovery control system and control method thereof |
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| CN109847546A (en) * | 2019-02-15 | 2019-06-07 | 邢台恒禄科技有限公司 | A kind of environmental protection zero-emission tail gas treatment process |
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| CN111120858A (en) * | 2019-11-25 | 2020-05-08 | 宣化钢铁集团有限责任公司 | Exhaust gas recovery control system and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN108506735B (en) | 2023-06-27 |
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