CN105972424A - Gas recycling system - Google Patents
Gas recycling system Download PDFInfo
- Publication number
- CN105972424A CN105972424A CN201610488963.XA CN201610488963A CN105972424A CN 105972424 A CN105972424 A CN 105972424A CN 201610488963 A CN201610488963 A CN 201610488963A CN 105972424 A CN105972424 A CN 105972424A
- Authority
- CN
- China
- Prior art keywords
- gas
- air bag
- valve
- acetylene
- gaseous mixture
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/12—Gas admission or discharge arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/14—Safety devices, e.g. prevention of excess pressure
-
- 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
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention belongs to the technical field of waste gas recycling and discloses a gas recycling system. The gas recycling system comprises a recycled gas storage unit which is connected with a mixed gas circuit used for leading in to-be-recycled gas and a recycled gas discharging pipeline used for guiding out recycled gas; the mixed gas circuit is provided with a gas concentration detection unit; an emptying pipeline is further connected to the portion, between the recycled gas storage unit and the gas concentration detection unit, of the mixed gas circuit; and the system determines that the gas in the mixed gas circuit is led into the recycled gas storage unit or led into the emptying pipeline to be emptied according to a detection result of the gas concentration detection unit. The gas recycling system is simple in structure, convenient to overhaul, low in investment cost and small in occupied area, and the purposes that acetylene mixed gas in replaced and emptied gas of a generator is selectively recycled, and acetylene mixed gas which is not worthy of being recycled and not safe is discharged are achieved; and meanwhile the acetylene discharge amount is reduced, the environment pressure is reduced, and economical recycling of acetylene gas is achieved.
Description
Technical field
The present invention relates to waste gas recovery technical field, particularly to a kind of gas recovery system.
Background technology
In suspension type polyvinyl-chloride production technology, carbide participates in reaction in generator and generates second
Alkynes, generator draws oxygen content in the acetylene gaseous mixture that material displacement is discharged unstable, when oxygen contains
When measuring too high, if being collected by acetylene gaseous mixture higher for this kind of oxygen content, acetylene has very much can
Can react with oxygen, there is the biggest potential safety hazard, therefore generator draws material displacement to discharge
Acetylene gaseous mixture can be directly disposed in air, and a large amount of acetylene in tail gas cannot realize weight
Multiple utilization, causes the biggest waste；A large amount of discharges of acetylene simultaneously can cause Factory Building surrounding
Deterioration, be unfavorable for the health of environmental protection and employee.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is: unstable for solving gas composition content to be recycled
Fixed, it is relatively hazardous that portion gas reclaims storage meeting ratio, and directly emptying can cause waste, is unfavorable for
The problem of environmental conservation.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of gas recovery system, including
Reclaiming gas memory element, described recovery gas memory element is connected to for introducing gas to be recycled
The mixing gas circuit of body and for deriving the recovery gas discharge line of gas recovery, described gaseous mixture
Road is provided with gas concentration detector unit, detects with gas concentration in described recovery gas memory element
Being also associated with in mixing gas circuit between unit emptying pipeline, system is single according to gas concentration detection
The result of unit's detection determines the gas introducing recovery gas memory element in mixing gas circuit or introduces
Emptying pipeline evacuation.
Wherein, also including displacement gas pipeline, two branch roads of described displacement gas pipeline are respectively with mixed
Close gas circuit, emptying pipeline connection.
Wherein, described emptying pipeline is correspondingly provided with the second valve and the first valve with mixing in gas circuit
Door, displacement gas pipeline with emptying pipeline, the interface of mixing gas circuit lays respectively at the second valve, the
The downstream position of one valve, the first valve and the second valve are for the duty of switched system.
Wherein, described gas to be recycled is acetylene gaseous mixture, at least wraps in described acetylene gaseous mixture
Including acetylene and oxygen, described gas concentration detector unit is oxygen concentration detecting instrument；When acetylene mixes
When closing volume fraction≤1.5% of oxygen in gas, open the first valve, close the second valve, second
Alkynes gaseous mixture is introduced directly into withdrawer memory element and reclaims；Otherwise, close the first valve,
Open the second valve, acetylene gaseous mixture is discharged by emptying pipeline.
Wherein, the substitution gas in described displacement gas pipeline is nitrogen.
Wherein, described recovery gas memory element is air bag, and described air bag is fixedly arranged above at least one
Individual radar detedtor, for detecting the air bag top distance to radar detedtor to judge air bag
Highly；When the height that radar detedtor detects air bag top reaches setting value, system sends
Alarm, stops inputting acetylene gaseous mixture in air bag.
Wherein, the quantity of described radar detedtor is three, when therein two or more
Radar detedtor detect the height at air bag top when reaching setting value, system sends alarm,
Stop inputting acetylene gaseous mixture in air bag.
Wherein, described cell edges is provided with for limiting the protective stent that air bag moves, described thunder
Reach detector to be arranged on described protective stent.
Wherein, it is provided with the ash discharge mouth of pipe bottom described air bag.
(3) beneficial effect
Technique scheme has the advantage that one gas recovery system of the present invention, according to gas
The testing result of bulk concentration detector unit judges that gas is the need of recovery, it is achieved that optionally
Generator is replaced the acetylene gaseous mixture in air-discharging reclaim, that reclaim, dangerous by being unworthy
The purpose discharged of acetylene gaseous mixture, decrease acetylene discharge capacity simultaneously, reduce environment
Pressure, it is achieved that the economy of acetylene gas reclaims.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of gas recovery system of the present invention.
Wherein, 1, oxygen concentration detecting instrument；2, the second valve；3, the first valve；4, gas
Capsule；5, radar detedtor.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail
Describe.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
In describing the invention, it should be noted that except as otherwise noted, " multiples' "
It is meant that two or more；Term " on ", D score, "left", "right", " interior ", " outward ",
" front end ", " rear end ", " head ", " afterbody " etc. instruction orientation or position relationship be based on
Orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description,
Rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " the
One ", " second ", " the 3rd " etc. are only used for describing purpose, and it is not intended that instruction or hint
Relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clear and definite regulation and limit
Fixed, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be consolidate
Fixed connection, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, also
It can be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.Right
For those of ordinary skill in the art, visual concrete condition understands that above-mentioned term is in the present invention
In concrete meaning.
As it is shown in figure 1, the invention discloses a kind of gas recovery system, including reclaiming gas storage
Unit, described recovery gas memory element is connected to the gaseous mixture for introducing gas to be recycled
Road and for deriving the recovery gas discharge line of gas recovery, described mixing gas circuit is provided with gas
Bulk concentration detector unit, between described recovery gas memory element and gas concentration detector unit
It is also associated with emptying pipeline, the knot that system detects according to gas concentration detector unit in mixing gas circuit
Fruit determines to introduce the gas in mixing gas circuit reclaims gas memory element or introduces emptying tubes rows
Empty.
The gas to be recycled preposition workshop section discharged by mixing gas circuit is introduced and reclaims gas storage list
Unit stores, then by reclaim gas discharge line by collected gas recovery derive with
Realize recycling, improve the utilization rate of gas to be recycled, reduce waste.Gas concentration is examined
Survey the function of unit be judge the gas to be recycled mixing in gas circuit whether be worth recovery or
No recyclable, the most specific gas to be recycled of object of its detection, it is also possible to be
The content of other components in gas to be recycled；Testing result according to gas concentration detector unit
Judge, those testing results do not meet reclaim require gas belong to be unworthy reclaim or
Expendable, can be discharged in air by emptying pipeline；The parameter only detected
Meet and just gas to be recycled introducing recovery gas memory element is reclaimed when recovery requires.Realizing
While gas is reclaimed, will not be collected not meeting the gas reclaiming requirement again,
Ensure the quality of gas recovery.
Further, this system also includes displacement gas pipeline, two of described displacement gas pipeline
Road respectively with mix gas circuit, emptying pipeline connection.Being disposed in system of displacement gas pipeline
Before startup or when keeping in repair, intrasystem gas is replaced, it is to avoid inclusion of air system,
Ensure security of system.
Further, described emptying pipeline is correspondingly provided with the second valve 2 and with mixing in gas circuit
One valve 3, displacement gas pipeline empties together pipeline, the interface of mixing gas circuit lays respectively at the second valve
The downstream position of door the 2, first valve 3, the first valve 3 and the second valve 2 are used for switching system
The duty of system.Downstream position mentioned here, refers to along the direction of gas flowing
Gas in downstream, i.e. pipeline first passes through the first valve 3 or the second valve 2, the most just passes through
The access point of displacement gas pipeline, facilitates replacement operator.
Preferably, described gas to be recycled is acetylene gaseous mixture, in described acetylene gaseous mixture at least
Including acetylene and oxygen, described gas concentration detector unit is oxygen concentration detecting instrument 1；Work as second
In alkynes gaseous mixture during volume fraction≤1.5% of oxygen, open the first valve 3, close the second valve
Door 2, acetylene gaseous mixture is introduced directly into withdrawer memory element and reclaims；Otherwise, the is closed
One valve 3, opens the second valve 2, is discharged by emptying pipeline by acetylene gaseous mixture.
For in suspension type polyvinyl-chloride production technology, the acetylene containing acetylene that generator is discharged
Gaseous mixture, owing to the oxygen content in gas is unstable, this gaseous mixture when that oxygen content being higher
In acetylene may react with oxygen, ratio is relatively hazardous, the most directly empties；But for oxygen
The acetylene gaseous mixture that Gas content is relatively low, acetylene is not susceptible to reaction, adds in acetylene gaseous mixture
Containing nearly about 40% acetylene, collect can realize again with, contribute to reduce occur
The consumption of the carbide (Acetylenogen .) in device, saves raw material.So gas concentration is examined by the present invention
Survey unit and be set to oxygen concentration detecting instrument 1, oxygen concentration detecting instrument 1 and the first valve 3,
Second valve 2 is chain；Only when the oxygen content detected in acetylene gaseous mixture less than or
During equal to 1.5%, acetylene gaseous mixture is safer, now opens the first valve 3, closes second
Valve 2, introduces acetylene gaseous mixture recovery gas discharge line and collects；Period, work as detection
When oxygen content in acetylene gaseous mixture is more than 1.5%, acetylene gaseous mixture ratio now is described
Relatively hazardous, now open the second valve 2, close the first valve 3, by straight for this acetylene gaseous mixture
Run in sky, makes acetylene dilute, and prevents acetylene from reacting with oxygen, it is ensured that safety.
Wherein, the substitution gas in described displacement gas pipeline is nitrogen.Nitrogen is a kind of indifferent gas
Body, is commonly used to replace pipe-line system, in order to by intrasystem oxygen before system is opened
Getting rid of clean, the inflammable gas in anti-locking system contacts with oxygen and explodes, so herein
Preferably with nitrogen as substitution gas.
Concrete, described recovery gas memory element is air bag 4, and described air bag 4 is fixedly arranged above
At least one radar detedtor 5, for detecting air bag 4 top distance to radar detedtor 5
To judge the height of air bag 4；Reach when radar detedtor 5 detects the height at air bag 4 top
During setting value, system sends alarm, stops inputting acetylene gaseous mixture in air bag 4.Air bag 4
Storage volume is big, and floor space is little, and cost of equipment cost is low, is the gas storage of a kind of high-quality
Equipment.
When not storing gas in air bag 4, air bag 4 is flat, and air bag 4 top to radar is visited
The distance surveying device 5 is farthest；Because air bag 4 wall thickness is relatively thin, so should not support too much, in order to avoid going out
The now situation such as gas leakage or air bag 4 breakage；When the acetylene gaseous mixture in air bag 4 is gradually increased
Waiting, air bag 4 is the most softened, and the distance at air bag 4 top to radar detedtor 5 is increasingly nearer,
When this distance reaches setting value, illustrate that the height at air bag 4 top is the most sufficiently high, should not continue
Continue and ventilate in air bag 4；Now radar detedtor 5 transmits a signal to the controller of system,
System sends alarm, is opened by the second valve 2, and the first valve 3 is closed, and system switches to row
Dummy status.When part acetylene gaseous mixture is discharged by reclaiming gas discharge line when, air bag 4
Volume is gradually reduced, and now can start again at the oxygen content in detection mixed pipe line, and start
Collect the oxygen content acetylene gaseous mixture less than or equal to 1.5%.
Preferably, the quantity of described radar detedtor 5 is three, when two or two therein
Above radar detedtor 5 detects the height at air bag 4 top when reaching setting value, and system is sent out
Go out alarm, stop inputting acetylene gaseous mixture in air bag 4.Owing to air bag 4 is not fixing knot
Structure, the drive lower gasbag 4 in external air flow can swing back and forth, and sometimes can play radar detection by shadow
Device 5 is reported by mistake, for avoiding frequently reporting by mistake, is preferably provided with three radar detedtors 5, only when two
Individual or three radar detedtors 5 are true with being just judged to the when of alarm, stop gas the most again
Capsule 4 air inlet, it is ensured that in air bag 4, the acetylene gaseous mixture of storage enough next workshop sections use.
In order to reduce the range of activity of air bag 4, reduce rate of false alarm further, at described air bag 4
Edge is provided with for limiting the protective stent that air bag 4 moves, and described radar detedtor 5 is arranged on
On described protective stent.I.e. it is arranged around the structure of similar fence at air bag 4, air bag 4 is limited
Within the specific limits, even if there being airflow influence, air bag 4 also will not occur significantly system easily
Motion, it is ensured that the normal work of radar detedtor 5, it is to avoid wrong report；Be conducive to protecting gas simultaneously
Capsule 4, reduces the abrasion to air bag 4, extends the service life of air bag 4.
Preferably, it is provided with the ash discharge mouth of pipe bottom described air bag 4.Air bag 4 is a kind of economical and practical
Gas buffer equipment, the preferred material of air bag 4 is PVC blanket clip cloth, and wall thickness is 3mm,
So air bag 4 has certain retractility.The acetylene gaseous mixture that generator is discharged is entrained with portion
Divide Calcium Carbide Ash, in using a period of time rear gasbag 4, there will be a lot of Calcium Carbide Ash, for convenience of cleaning,
Bottom air bag 4, offer the ash discharge mouth of pipe, and preferably offer two, easy cleaning.
The present invention can be used in combination with automatic control system, it is achieved automatically reclaims the behaviour of acetylene
Make.Concrete, in order to improve acetylene gas reclamation rate, reduce carbide unit consumption, utilize air bag 4 to exist
Equipment in terms of recovery acetylene gas, compiling DCS (Distributed Control System, in
Literary fame claims: Distributed Control System) automatic control program, the acetylene making generator discharge reclaims behaviour
Realize DCS remote auto to control, it is not necessary to consume a large amount of manpower and go operation.
Present configuration is simple, and easy construction, speed are fast.Run, overhaul conveniently, capital cost
With low, floor space is little, it is achieved that the acetylene optionally replaced in air-discharging by generator mixes
Conjunction gas reclaims, and will be unworthy purpose that reclaim, that unsafe acetylene gaseous mixture is discharged,
It is achieved thereby that the economy of acetylene gas reclaims；Decrease the discharge capacity of acetylene gas, reduce
Pollution on the environment, has beautified Factory Building surrounding, thus has accomplished acetylene gas
Economy reclaims.
The above is only the preferred embodiment of the present invention, it is noted that lead for this technology
For the those of ordinary skill in territory, on the premise of without departing from the technology of the present invention principle, it is also possible to
Making some improvement and replacement, these improve and replace and also should be regarded as protection scope of the present invention.
Claims (9)
1. a gas recovery system, it is characterised in that include reclaiming gas memory element, institute
State recovery gas memory element be connected to the mixing gas circuit for introducing gas to be recycled and use
In the recovery gas discharge line of derivation gas recovery, described mixing gas circuit is provided with gas concentration inspection
Survey unit, the mixing gas circuit between described recovery gas memory element and gas concentration detector unit
On be also associated with empty pipeline, system according to the result that gas concentration detector unit detects determine by
Gas in mixing gas circuit introduces and reclaims gas memory element or introduce emptying pipeline evacuation.
2. gas recovery system as claimed in claim 1, it is characterised in that also include putting
Air exchange pipe, two branch roads of described displacement gas pipeline respectively with mix gas circuit, emptying pipeline even
Logical.
3. gas recovery system as claimed in claim 2, it is characterised in that described emptying
Pipeline is correspondingly provided with the second valve and the first valve with mixing in gas circuit, displacement gas pipeline is with emptying
Pipeline, the interface of mixing gas circuit lay respectively at the second valve, the downstream position of the first valve, the
One valve and the second valve are used for the duty of switched system.
4. gas recovery system as claimed in claim 3, it is characterised in that described in treat back
Getter body is acetylene gaseous mixture, at least includes acetylene and oxygen in described acetylene gaseous mixture, described
Gas concentration detector unit is oxygen concentration detecting instrument；When the volume integral of oxygen in acetylene gaseous mixture
During number≤1.5%, opening the first valve, close the second valve, acetylene gaseous mixture is introduced directly into back
Receive device memory element to reclaim；Otherwise, close the first valve, open the second valve, by second
Alkynes gaseous mixture is discharged by emptying pipeline.
5. gas recovery system as claimed in claim 4, it is characterised in that described displacement
Substitution gas in air pipe is nitrogen.
6. gas recovery system as claimed in claim 4, it is characterised in that described recovery
Gas memory element is air bag, and described air bag is fixedly arranged above at least one radar detedtor, is used for
Detect the air bag top distance to radar detedtor to judge the height of air bag；Work as radar detedtor
Detecting the height at air bag top when reaching setting value, system sends alarm, stops in air bag
Input acetylene gaseous mixture.
7. gas recovery system as claimed in claim 6, it is characterised in that described radar
The quantity of detector is three, when two or more radar detedtors therein detect
When the height at air bag top reaches setting value, system sends alarm, stops inputting second in air bag
Alkynes gaseous mixture.
8. gas recovery system as claimed in claim 6, it is characterised in that described air bag
Edge is provided with for limiting the protective stent that air bag moves, and described radar detedtor is arranged on described
On protective stent.
9. gas recovery system as claimed in claim 6, it is characterised in that described air bag
Bottom is provided with the ash discharge mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488963.XA CN105972424B (en) | 2016-06-28 | 2016-06-28 | A kind of gas recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488963.XA CN105972424B (en) | 2016-06-28 | 2016-06-28 | A kind of gas recovery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972424A true CN105972424A (en) | 2016-09-28 |
| CN105972424B CN105972424B (en) | 2018-11-16 |
Family
ID=57019361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610488963.XA Active CN105972424B (en) | 2016-06-28 | 2016-06-28 | A kind of gas recovery system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105972424B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559746A (en) * | 2019-09-04 | 2019-12-13 | 北京国科环宇科技股份有限公司 | Waste gas recovery experiment system and implementation method |
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| CN104848033A (en) * | 2015-05-29 | 2015-08-19 | 中国石油化工股份有限公司 | Alkane storage tank protection method |
| CN104986466A (en) * | 2015-05-29 | 2015-10-21 | 中国石油化工股份有限公司 | Method for preventing gaseous phase explosion of arene storage tank and reducing volatile matter emission |
| CN205908995U (en) * | 2016-06-28 | 2017-01-25 | 鄂尔多斯市君正能源化工有限公司 | Gas recovery system |
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2016
- 2016-06-28 CN CN201610488963.XA patent/CN105972424B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| CN101767697A (en) * | 2009-12-31 | 2010-07-07 | 杜扬 | Intrinsically safe inerting protection method and device for oil storage tank |
| CN202252840U (en) * | 2011-10-26 | 2012-05-30 | 山东省特种设备检验研究院滨州分院 | Recycling and replacing device for automotive natural gas bottle |
| CN203099325U (en) * | 2013-01-15 | 2013-07-31 | 成都成钢梅塞尔气体产品有限公司 | Combustible gas leakage protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110559746A (en) * | 2019-09-04 | 2019-12-13 | 北京国科环宇科技股份有限公司 | Waste gas recovery experiment system and implementation method |
| CN110559746B (en) * | 2019-09-04 | 2023-10-20 | 北京国科环宇科技股份有限公司 | Waste gas recovery experiment system and implementation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105972424B (en) | 2018-11-16 |
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