CN206027291U - Preposed filter device for flue gas analysis - Google Patents

Preposed filter device for flue gas analysis Download PDF

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Publication number
CN206027291U
CN206027291U CN201621045657.0U CN201621045657U CN206027291U CN 206027291 U CN206027291 U CN 206027291U CN 201621045657 U CN201621045657 U CN 201621045657U CN 206027291 U CN206027291 U CN 206027291U
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CN
China
Prior art keywords
support frame
filter
cartridge support
filtering tank
flue 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.)
Expired - Fee Related
Application number
CN201621045657.0U
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Chinese (zh)
Inventor
洪志聪
吴志航
尹璐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Iron and Steel Corp filed Critical Wuhan Iron and Steel Corp
Priority to CN201621045657.0U priority Critical patent/CN206027291U/en
Application granted granted Critical
Publication of CN206027291U publication Critical patent/CN206027291U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a preposed filter device for flue gas analysis, the filter bag is crossed to filtration jar, cyclic annular centrifugal guiding gutter, filter core support frame, flexible hydrophobic fibre temperature resistant including the tubbiness, be equipped with the filtration cover on filtering the jar, be equipped with air inlet, outlet on the filtration jar, be equipped with the gas outlet on the filtration cover, in the filtration jar was placed in to the filter core support frame, flexible hydrophobic fibre temperature resistant was crossed the filter bag cover and is established on the filter core support frame, and cyclic annular centrifugal guiding gutter setting is being filtered between jar and the filter core support frame, cyclic annular centrifugal water conservancy diversion grooved ring is established in the filter core support frame outside, cyclic annular centrifugal guiding gutter is linked together with the air inlet that filters on the jar, filter the cover and pass through threaded connection with the filter core support frame, filter the cover and filter a jar adoption screw screw rod and be connected. The utility model discloses it is convenient that simple structure, filter portion can dismantle, keep in repair the change.

Description

A kind of flue gas analysis pre-filtering device
Technical field
This utility model is related to a kind of defecator, and in particular to a kind of flue gas analysis pre-filtering device, main to use In gas composition analysis system in metallurgical, chemical industry.
Background technology
In gas composition analysis system, pretreatment module is responsible for carrying out filtering by the gas gathered from pipeline, at dehumidifying Reason, makes gas become pressure, flow, humidity, cleanliness factor sample gas up to standard.In preprocessing process, often there is multistage mistake Filter, it is ensured that the humidity of sample gas, cleanliness factor reach standard.The fore filter being connected with pipeline, is filled as primary filter Put, often the larger equipment of consumption.Fore filter is generally using the ceramic or stainless filter core of one, the mistake Filter filter element price is high and plugging fault takes place frequently.Because gas composition analysis system plays a decisive role to RECOVERY OF CONVERTER GAS, once Break down and will have a strong impact on steel-making energy consumption, be that user brings economic loss and severe compromise occurs.
There is following defect in actual applications in prior art:
1st, fore filter complex structure, difficulty of processing are big, and if any damaging, to repair religion difficult, therefore increased and make steel into This;
2nd, the transmitance of the filter core of existing fore filter is low and is easily blocked by aqueous dust pollution;Failure frequency Send out, system effectiveness degradation speed is fast, filter element spare part relies primarily on import, and cycle buying is long and equipment cost is high.
Utility model content
The purpose of this utility model is to provide a kind of simple structure, and filtration fraction is detachable, be easy to keep in repair the cigarette changed Edema caused by disorder of QI analysis pre-filtering device.
The technical scheme adopted by this utility model is:
A kind of flue gas analysis pre-filtering device, filtering tank, ring-type centrifugal flow guiding groove including tubbiness, cartridge support Frame, flexible hydrophobic fiber heatproof filter bag;
The filtering tank is provided with filtration cover, and filtering tank is provided with air inlet, discharge outlet, and the filtering tank lid is provided with Gas outlet;
The cartridge support is placed in filtering tank, and flexible hydrophobic fiber heatproof filter bag is set on cartridge support frame, Ring-type centrifugal flow guiding groove is arranged between filtering tank and cartridge support frame;
The ring-type centrifugal flow guiding grooved ring is located on the outside of cartridge support frame;On the ring-type centrifugal flow guiding groove and filtering tank Air inlet is connected;
Filter cover to be threaded connection with cartridge support frame;Filter cover to be connected using screw rod with filtering tank;
After needing the gas for filtering Jing air inlet into ring-type centrifugal flow guiding groove, Jing after flexible hydrophobic fiber heatproof filter bag Into in cartridge support frame, finally discharged by gas outlet.
By such scheme, the cartridge support frame is cylindrical in shape, is provided with the row 4mm circular holes of 8 row 5 in cylindrical wall.
By such scheme, the ring-type centrifugal flow guiding groove is spiral stream guidance groove.
By such scheme, the filtering tank lid is provided with spring absolute pressure gauge, and the tightness of filtering tank cavity is carried out Monitoring.
By such scheme, filter cover, cartridge support frame and be equipped with sealing ring detent, RUBBER O type sealing ring is placed in In sealing ring detent.The filtration cover is sealed using direct press type with filtering tank, and filtration cover is equipped with filtering tank and is contained The sealing ring detent of RUBBER O type sealing ring.
By such scheme, the cartridge support frame outer wall upper end is provided with filter bag and fixes antiskid groove.
By such scheme, the air inlet pipe at the air inlet is in 30 ° of -45 ° of angles with the axis of filtering tank, preferably 30°。
By such scheme, filter element can be set in the cartridge support frame in addition, to improve filter efficiency.
Work as converter gas(The gas that need to be filtered)Filtering tank is entered by the air inlet pipe in a certain angle with filtering tank, is flowed through Ring-type centrifugal flow guiding groove, enters inside cartridge through flexible hydrophobic fiber heatproof filter bag and cartridge support frame thieff hatch, By being sent to gas outlet inside filtration core.
The beneficial effects of the utility model are:
Using flexible hydrophobic fiber heatproof filter bag Chalk-dust filtering moisture, the dust and part water in flue gas can be effectively removed Point, the gas into analysis meter is effectively purified, make instrument without prejudice, normally use so as to improve recovery system Rate;
Filtration fraction is detachable, filter element replacing is convenient, improves maintenance efficiency, reduces filtration cost;
It is simple structure, easy to make, and low manufacture cost;
Easy to maintenance, maintenance cost is cheap, fault rate is low, strong adaptability;
Gas-contact area is expanded using flexible hydrophobic fiber heatproof filter bag, filter efficiency is improve;
Former ceramics or metal sampler probe are replaced using flexible hydrophobic fiber heatproof filter bag, reduce filter into This;
Air inlet pipe is in a certain angle with filtering tank, and filtering tank be made up of stainless steel material it is barrel-shaped, to into filtering tank Gas is accelerated, and is improved the gas flow by flexible hydrophobic fiber heatproof filter bag, is improved filter efficiency;
Guiding gutter is ring-type centrifugal flow guiding groove, and is helically declined;Gas enters guiding gutter, produces and surround in filtering tank The high speed cyclone of flexible hydrophobic fiber heatproof filter bag, increases gas flow rate and the contact with flexible hydrophobic fiber heatproof filter bag Face, improves filter efficiency;
Filter cover to be threaded connection with cartridge support frame, be located at filtration cover and be provided with containing rubber with cartridge support frame The sealing ring detent of O-ring seal, RUBBER O type sealing ring are placed between filtration cover and cartridge support frame, effectively can be protected Card filter tightness;
Filtering tank is provided with discharge outlet, and manually ball valve completes regular maintenance discharge opeing operation, easy to maintenance.
Description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is operation principle sketch of the present utility model;
Fig. 3, Fig. 4 are purge schematic diagram of the present utility model.
Wherein:1st, filtering tank, 2, ring-type centrifugal flow guiding groove, 3, cartridge support frame, 4, flexible hydrophobic fiber heatproof filter bag, 5th, circular hole, 6, air inlet pipe, 8, Manual draining valve, 9, RUBBER O type sealing ring, 10, spring absolute pressure gauge, 11, filter cover, 12nd, drain pipe, 13, escape pipe.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit this utility model.
Participate in Fig. 1-Fig. 2, a kind of flue gas analysis pre-filtering device, the filtering tank 1, ring-type centrifugal flow guiding including tubbiness Groove 2, cartridge support frame 3, flexible hydrophobic fiber heatproof filter bag 4.Filtering tank 1 is provided with filtration cover 11, and filtering tank 1 is provided with The air inlet being connected with air inlet pipe 6 and the discharge outlet of the connection of drain pipe 12, are filtered cover 11 and are provided with what is be connected with escape pipe 13 Gas outlet;Drain pipe 12 is provided with Manual draining valve 8, is provided with spring absolute pressure gauge 10 at gas outlet.Cartridge support frame 3 is in cylinder Shape, is provided with the row 4mm of 8 row 5 circular holes 5 in cylindrical wall.Cartridge support frame 3 is placed in filtering tank 1, and flexible hydrophobic fiber heatproof is filtered Bag 4 is set on cartridge support frame 3, and ring-type centrifugal flow guiding groove 2 is arranged between filtering tank 1 and cartridge support frame 3, ring-type centrifugation 2 ring of guiding gutter is located on the outside of cartridge support frame 3;Ring-type centrifugal flow guiding groove 2 is connected with the air inlet on filtering tank 1;And in order to Good guide function is realized, ring-type centrifugal flow guiding groove 2 adopts spiral stream guidance groove.
Filter cover 11 to be threaded connection with cartridge support frame 3, filter cover 11, cartridge support frame 3 and be equipped with sealing Circle detent, RUBBER O type sealing ring 9 are placed in sealing ring detent.Filter cover 11 screw rod is adopted with filtering tank 1 Connection, direct press type sealing, filters the sealing ring detent that cover 11 and filtering tank 1 are equipped with the sealing ring of type containing RUBBER O 9.
In the present embodiment, cartridge support frame outer wall upper end be provided with filter bag fix antiskid groove, so as to fixing flexible it is hydrophobic Fiber heatproof filter bag 4.Air inlet pipe 6 is in 30 ° of -45 ° of angles with the axis of filtering tank 1.
The aqueous gas Jing air inlet pipe of dust-laden enters ring-type centrifugal flow guiding groove, and Jing ring-type centrifugal flow guidings groove accelerates, gas Jing Rotation, the thicker grit of a part and vapor is accelerated to be fallen directly into the cavity bottom of filtering tank by reasons such as inertia or natural subsidence Portion, wherein most dust and steam with gas along guiding gutter enter in the shape of a spiral flexible hydrophobic fiber heatproof filter bag and In cartridge support frame 3, most dust water branches are filtered absorption of by flexible hydrophobic fiber heatproof filter bag, into cartridge support Gas in frame is discharged into pretreatment gas circuit by gas outlet and completes follow-up secondary filter dedusting dehumidifying.
Referring to Fig. 3 and Fig. 4, when safeguarding, can remove defecator by nitrogen being purged outside purging nitrogen in system and system Tamper, so as to ensure filter effect and filter efficiency.
One coal gas of steel-smelting revolving furnace recovery system is reclaimed with furnace rear exhaust-gas analyzer measurement, using this utility model flue gas Analysis improves 50s with pre-filtering device ratio using the analysis system response time of common defecator, and yield improves near 15%, with average one day 25 stove of converter, 10000 cubic metres of a stove(1000 yuan), 11500 cubic metres are reclaimed after enforcement, often produce per year Raw 10,350,000 yuan of economic benefit 11500/10000*1000*25*30*12=.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, And all these modifications and variations should all belong to the protection domain of this utility model claims.

Claims (8)

1. a kind of flue gas analysis pre-filtering device, it is characterised in that:Filtering tank, ring-type centrifugal flow guiding groove including tubbiness, Cartridge support frame, flexible hydrophobic fiber heatproof filter bag;
The filtering tank is provided with filtration cover, and filtering tank is provided with air inlet, discharge outlet, and the filtering tank lid is provided with outlet Mouthful;
The cartridge support is placed in filtering tank, and flexible hydrophobic fiber heatproof filter bag is set on cartridge support frame, ring-type Centrifugal flow guiding groove is arranged between filtering tank and cartridge support frame;
The ring-type centrifugal flow guiding grooved ring is located on the outside of cartridge support frame;Air inlet on the ring-type centrifugal flow guiding groove and filtering tank Mouth is connected;
Filter cover to be threaded connection with cartridge support frame;Filter cover to be connected using screw rod with filtering tank;
Need the gas for filtering Jing after air inlet enters ring-type centrifugal flow guiding groove, enter Jing after flexible hydrophobic fiber heatproof filter bag In cartridge support frame, finally discharged by gas outlet.
2. flue gas analysis pre-filtering device according to claim 1, it is characterised in that:The cartridge support frame is in cylinder Shape, is provided with circular hole in cylindrical wall.
3. flue gas analysis pre-filtering device according to claim 1 and 2, it is characterised in that:The ring-type centrifugation is led Chute is spiral stream guidance groove.
4. flue gas analysis pre-filtering device according to claim 3, it is characterised in that:The filtration cover, filtration Tank is equipped with sealing ring detent, and RUBBER O type sealing ring is placed in sealing ring detent.
5. flue gas analysis pre-filtering device according to claim 4, it is characterised in that:The filtering tank lid is provided with Spring absolute pressure gauge.
6. flue gas analysis pre-filtering device according to claim 4, it is characterised in that:Filter cover, cartridge support Frame is equipped with sealing ring detent, and RUBBER O type sealing ring is placed in sealing ring detent.
7. flue gas analysis pre-filtering device according to claim 6, it is characterised in that:The cartridge support frame outer wall Upper end is provided with filter bag and fixes antiskid groove.
8. flue gas analysis pre-filtering device according to claim 1, it is characterised in that:Air inlet at the air inlet Pipe is in 30 ° of -45 ° of angles with the axis of filtering tank.
CN201621045657.0U 2016-09-09 2016-09-09 Preposed filter device for flue gas analysis Expired - Fee Related CN206027291U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621045657.0U CN206027291U (en) 2016-09-09 2016-09-09 Preposed filter device for flue gas analysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621045657.0U CN206027291U (en) 2016-09-09 2016-09-09 Preposed filter device for flue gas analysis

Publications (1)

Publication Number Publication Date
CN206027291U true CN206027291U (en) 2017-03-22

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Family Applications (1)

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CN201621045657.0U Expired - Fee Related CN206027291U (en) 2016-09-09 2016-09-09 Preposed filter device for flue gas analysis

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107029481A (en) * 2017-06-21 2017-08-11 上海昶艾电子科技有限公司 Mist of oil dust filtering device for sample gas
CN108525410A (en) * 2018-06-11 2018-09-14 秦皇岛市桑格电气控制设备有限公司 A kind of devices and methods therefor for collecting cloud
CN111228910A (en) * 2020-03-23 2020-06-05 江苏春都环保科技有限公司 Filter equipment is from clean system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107029481A (en) * 2017-06-21 2017-08-11 上海昶艾电子科技有限公司 Mist of oil dust filtering device for sample gas
CN108525410A (en) * 2018-06-11 2018-09-14 秦皇岛市桑格电气控制设备有限公司 A kind of devices and methods therefor for collecting cloud
CN108525410B (en) * 2018-06-11 2023-10-20 秦皇岛市桑格电气控制设备有限公司 Device and method for collecting dust mist
CN111228910A (en) * 2020-03-23 2020-06-05 江苏春都环保科技有限公司 Filter equipment is from clean system

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170705

Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan

Patentee after: WUHAN IRON AND STEEL Co.,Ltd.

Address before: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2

Patentee before: WUHAN IRON AND STEEL Co.,Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170322

CF01 Termination of patent right due to non-payment of annual fee