CN206483316U - A kind of nitrogen oxides blower unit - Google Patents

A kind of nitrogen oxides blower unit Download PDF

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Publication number
CN206483316U
CN206483316U CN201720149461.4U CN201720149461U CN206483316U CN 206483316 U CN206483316 U CN 206483316U CN 201720149461 U CN201720149461 U CN 201720149461U CN 206483316 U CN206483316 U CN 206483316U
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China
Prior art keywords
drainer
nitrogen oxides
air
blower unit
absorption tower
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CN201720149461.4U
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赵光辉
孟庆田
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SHANDONG FENGYUAN CHEMICAL INDUSTRY Co Ltd
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SHANDONG FENGYUAN CHEMICAL INDUSTRY Co Ltd
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Abstract

The utility model discloses a kind of nitrogen oxides blower unit there is provided one kind is safe and reliable, gas leak, the air inducing equipment of resistance to acid liquid corrosion are prevented.Nitrogen oxides blower unit fan inlet is connected with nitrogen oxides induced duct, fan out draft is connected with absorption tower, air-introduced machine prime installs the drainer for removing acid solution steam, drainer is built-in with condenser, fan inlet is connected by being flexible coupling with the pipeline of drainer, packing seal is used between id-motor rotating shaft and bearing block, fan out draft is connected by pipeline with secondary mother liquid absorption tower.The material of centrifugal fan is 316L, and 316L stainless steels have excellent decay resistance.The motor of blower fan uses the rotating speed of Frequency Converter Control impeller, and air output can be controlled as needed.Air-introduced machine is flexible coupling with drainer coupling part using Fluorine-lined rubber.In fans entrance prime, design installs corrosion resistant 316L stainless steels condenser pipe additional in drainer body.

Description

A kind of nitrogen oxides blower unit
Technical field
The utility model is related to a kind of new blower unit, more particularly to a kind of corrosion of acid gas, closed air inducing Device.
Background technology
Air-introduced machine is used to react the oxides of nitrogen gas air inducing generated to absorption tower in the production of oxalic acid oxidizing process, carries out Multi-absorption processing, until complying with discharge standard.Air-introduced machine is the important production equipment of oxalic acid production.Existing air-introduced machine The rotatable interface part of poor sealing, motor shaft and bearing block, is had gas and is spilt, easily pollute working environment using long, Endanger enterprise employee health.
Some vapor can be mingled with air inducing gas, vapor reacts the acid solution to be formed with oxides of nitrogen gas can corrode wind Machine metal part, the reliability of influence air-introduced machine work, reduces its service life.This is accomplished by a kind of closed performance well, can Acid solution, corrosion resistant air inducing equipment are removed with as far as possible more.
The content of the invention
In order to solve technical problem that background technology mentions there is provided one kind is safe and reliable, gas leak is prevented, resistance to acid solution is rotten The air inducing equipment of erosion, the technical solution adopted in the utility model is as follows.
A kind of nitrogen oxides blower unit, fan inlet is connected with nitrogen oxides induced duct, fan out draft with Absorption tower is connected, and air-introduced machine prime installs the drainer for removing acid solution steam, and drainer is built-in with condenser, and air-introduced machine enters Air port is connected by being flexible coupling with the pipeline of drainer, and packing seal, air inducing are used between id-motor rotating shaft and bearing block Machine air outlet is connected by pipeline with secondary mother liquid absorption tower.
According to described nitrogen oxides blower unit, condenser, air-introduced machine use 316L stainless steel materials, and described is cold Filler is provided with outside condenser pipe in the middle part of solidifying tank, drainer air inlet, air outlet are located at tank wall bottom, tank body top respectively Portion, drainer bottom carries condensate outlet.
According to described nitrogen oxides blower unit, the described bellows being flexible coupling using Fluorine-lined quality of rubber materials, ripple Pipe two ends carry adpting flange.
According to described nitrogen oxides blower unit, interior plug filler, bearing block between id-motor rotating shaft and bearing block Outside is provided with gland.
According to described nitrogen oxides blower unit, the change for adjusting draught fan impeller rotating speed is connected with id-motor Frequency device.
According to described nitrogen oxides blower unit, air-introduced machine secondary mother liquid absorption tower successively with rear class, alkali liquor absorption Tower, water absorption tower, the connection of ammonia Reducing and absorption tower.
Air inducing equipment makes the oxides of nitrogen gas that oxidation is produced be absorbed by secondary mother liquid by air inducing, to Alkali absorption, then Absorbed to water, eventually pass ammonia reduction, reach and reach standard discharge except residual.The utility model equipment advantage is as follows.
1. in order to which air-introduced machine reaches requirement for anticorrosion, the material of the centrifugal fan used is 316L, 316L stainless steels tool There is excellent decay resistance, air-introduced machine service life can be improved.
2. in order to realize that blower fan air-supply dynamics is adjustable, the motor of blower fan uses the rotating speed of Frequency Converter Control impeller, Ke Yigen According to needing to control air output, electric energy is saved.
3. air-introduced machine is flexible coupling with drainer coupling part using the corrosion resistant Fluorine-lined rubber of DN400 types, be flexible coupling a side Face can ensure the seal of interface, on the other hand allow compared with thin tail sheep, reduce installation difficulty.
4. former labyrinth sealing improvement and design is 316L housings, using lid sealing is filled out, encapsulant uses corrosion resistant, resistance to height Warm, wear-resisting new material, prevents nitrogen oxides from leaking.
5. in fans entrance prime, design is installed additional in drainer body sets rule outside 316L stainless steel condenser pipes, condenser pipe Whole filler, the directly outer corrosion harmfulness for flowing back to absorption tower, reducing to blower fan of buffered generation condensate liquid acid solution.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In accompanying drawing:1st, gas piping;2nd, absorption tower;3rd, air inducing discharge pipe;4th, motor;5th, frequency converter;6th, bearing; 7th, gland;8th, centrifugal type draught fan;9th, it is flexible coupling;10th, air inducing suction line;11st, drainer;12nd, condenser pipe;13、 Condense filler.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, air-introduced machine is the capital equipment that oxidizing process produces oxalic acid, absorbed for oxides of nitrogen gas to be introduced Tower, absorbs by multiple absorption towers, eventually passes and meets the gas of environmental requirement after absorbing and be emitted into air.
Leaked using the long gas that has the rotatable interface part of traditional air-introduced machine poor sealing, motor shaft and bearing block Go out, easily pollute working environment, endanger enterprise employee health.Some acid solution vapor, vapor and nitrogen oxidation can be mingled with air inducing gas The acid solution of thing gas reaction generation has very severe corrosive, and heavy corrosion blower fan, the reliability of influence air-introduced machine work reduces it Service life.
The characteristics of in order to provide a kind of blower fan of reliable operation, this blower unit, is as described below.The air inlet of air-introduced machine with Nitrogen oxides induced duct is connected, and fan out draft is connected with multistage absorption tower.Air-introduced machine uses centrifugal type draught fan, uses 316L stainless steel materials, anticorrosive, service life is long.
To prevent acid solution steam corrosion blower fan, it should remove acid solution steam and lead to blower fan again.Air-introduced machine prime, which is installed, to be used In the drainer 11 for removing acid solution steam.Drainer 11 is built-in with condenser, and condenser uses 316L stainless steel materials.Condenser Positioned at the middle part of drainer 11, filler is provided with outside condenser pipe, steaming effect is removed to increase.Drainer air inlet, air outlet difference At the top of sidewall bottom, tank body positioned at tank body, drainer bottom carries condensate outlet.Damp and hot air inducing is introduced from bottom, so Afterwards by condenser condensation, after most of acid solution steam liquefied, fall in the bottom of tank body.Finally, condensate liquid is by row Put pipe and be emitted into absorption tower, through further recycling.
The air inlet of air-introduced machine 9 is connected by being flexible coupling with the pipeline of drainer 11.Id-motor rotating shaft and bearing block Between use packing seal.Fan out draft is connected by pipeline with secondary mother liquid absorption tower.Described is flexible coupling 9 using lining The bellows of fluorubber material, bellows two ends carry adpting flange.It is flexible coupling and 9 is different from and is rigidly connected, it is allowed to less position Move, it is convenient to install.
Gap between id-motor rotating shaft and bearing block is communicated with electric fan shell, in order to prevent nitrogen dioxide etc. from having Poisonous gas are revealed, interior plug filler between machine shaft and bearing block, and (left side) is provided with gland on the outside of bearing block in addition 7.Encapsulant uses corrosion resistant, high temperature resistant, wear-resisting new material, prevents nitrogen oxides from leaking.
Different production phases, required absorbing quantity is different.In order to realize that blower fan air-supply dynamics is adjustable, the motor of blower fan 4 are provided with the rotating speed that frequency converter 5 controls impeller, can controlled motor rotating speed as needed, and then control air output, realization is on demand Air feed, saves electric energy, reduces production cost.
The rear class of centrifugal type draught fan 8 successively with secondary mother liquid absorption tower, alkali liquor absorption tower, water absorption tower, ammonia Reducing and absorption Tower is connected, and the gas up to standard that environmental requirement is met after absorbing is emitted.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality New design and protection domain is defined, on the premise of the utility model design concept is not departed from, common in this area The all variations and modifications that engineers and technicians make to the technical solution of the utility model, all should fall into guarantor of the present utility model Protect scope.

Claims (6)

1. a kind of nitrogen oxides blower unit, fan inlet is connected with nitrogen oxides induced duct, fan out draft is with inhaling Receive tower connection, it is characterised in that:Air-introduced machine prime installs the drainer for removing acid solution steam(11), drainer(11)It is built-in There is condenser, fan inlet is by being flexible coupling(9)With drainer(11)Pipeline connection, id-motor rotating shaft and bearing Packing seal is used between seat, fan out draft is connected by pipeline with secondary mother liquid absorption tower.
2. nitrogen oxides blower unit according to claim 1, it is characterised in that:Described condenser, air-introduced machine are adopted Use 316L stainless steel materials, described drainer(11)The condenser pipe at middle part(12)It is provided with filler, drainer outside(11)Air intake Mouth, air outlet are located at tank wall bottom, tank body top, drainer respectively(11)Bottom carries condensate outlet.
3. nitrogen oxides blower unit according to claim 1, it is characterised in that:Described is flexible coupling(9)Using Fluorine-lined The bellows of quality of rubber materials, bellows two ends carry adpting flange.
4. nitrogen oxides blower unit according to claim 1, it is characterised in that:Id-motor rotating shaft and bearing block it Gland is installed on the outside of interior plug filler, bearing block(7).
5. nitrogen oxides blower unit according to claim 1, it is characterised in that:It is connected with id-motor for adjusting Save the frequency converter of draught fan impeller rotating speed.
6. nitrogen oxides blower unit according to claim 1, it is characterised in that:The secondary mother of air-introduced machine successively with rear class Liquid absorption tower, alkali liquor absorption tower, water absorption tower, the connection of ammonia Reducing and absorption tower.
CN201720149461.4U 2017-02-20 2017-02-20 A kind of nitrogen oxides blower unit Active CN206483316U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112742194A (en) * 2020-11-17 2021-05-04 江苏远洋药业股份有限公司 Taurine coarse crystal processing system
CN113790460A (en) * 2021-08-19 2021-12-14 北京华远意通热力科技股份有限公司 Safe low-nitrogen emission control system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112742194A (en) * 2020-11-17 2021-05-04 江苏远洋药业股份有限公司 Taurine coarse crystal processing system
CN113790460A (en) * 2021-08-19 2021-12-14 北京华远意通热力科技股份有限公司 Safe low-nitrogen emission control system and method
CN113790460B (en) * 2021-08-19 2022-05-06 北京华远意通热力科技股份有限公司 Safe low-nitrogen emission control system and method

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