CN201337853Y - Drainage type pulse blast cleaning device with velocity difference jet - Google Patents

Drainage type pulse blast cleaning device with velocity difference jet Download PDF

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Publication number
CN201337853Y
CN201337853Y CNU200820156757XU CN200820156757U CN201337853Y CN 201337853 Y CN201337853 Y CN 201337853Y CN U200820156757X U CNU200820156757X U CN U200820156757XU CN 200820156757 U CN200820156757 U CN 200820156757U CN 201337853 Y CN201337853 Y CN 201337853Y
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CN
China
Prior art keywords
pipe
winding
jet
blast
central
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
CNU200820156757XU
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Chinese (zh)
Inventor
刁永发
顾平道
沈猛
邱燃
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Donghua University
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Donghua University
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
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Priority to CNU200820156757XU priority Critical patent/CN201337853Y/en
Application granted granted Critical
Publication of CN201337853Y publication Critical patent/CN201337853Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a drainage type pulse blast cleaning device with velocity difference jet, comprising a blast pipe a, a blast pipe b, a blast short pipe and a drainage pipe, wherein the nozzle of the blast pipe a is provided with a blast short pipe, the lower end of the blast short pipe is connected with the drainage pipe, the central axis of the blast short pipe is provided with a central jet pipe, a central jet hole is installed at the bottom of the blast short pipe, a circle of small jet holes are installed on the peripheral ring surface of the central jet hole, and the blast short pipe and the central jet pipe are respectively connected with the blast pipe a and the blast pipe b. The blast pipe a and the blast pipe b can be controlled by a same pulse valve. The peripheral jet in the utility model can induce the central jet for prolonging the jet length to clean ash efficiently. In addition, the filter material at the height of 200mm to 400mm close to the filter bag port can also clean ash efficiently.

Description

A kind of conduction type pulse blowing deashing device of belt speed difference jets
Technical field
The utility model relates to the used a kind of pulse jetting deashing device in environmental protection field, particularly relates to a kind of conduction type pulse blowing deashing device of belt speed difference jets.
Background technology
Pulse jetting deashing device be a kind of employing periodically in filter bag or outside the compressed air of jetting reach the high-effective dust-removing equipment of removing filter bag surfaces externally and internally laying dust, it has advantages such as administrative expenses are low, efficiency of dust collection is high, the filter bag operating period is long, floor space is little, has therefore obtained using widely in industry production departments such as cement, chemical industry, electric power, metallurgy.The problem that pulse spraying equipment in the practical application at present exists has: 1, in order to keep the pressure of winding-up, pulse jetting deashing device often is equipped with Venturi tube, and the installation of Venturi tube will cause can't deashing in the height of 200mm-400mm near the filtrate of filter pocket mouths.2, because the outlet diameter of Venturi tube dwindles, and the air-flow of process filtrate will pass card in the local acceleration of the necking of Venturi tube, this can make the overall resistance of dust pelletizing system increase.3, it is less that the installation of Venturi tube causes drainage tolerance, and drainage tolerance is about 2: 1 with the ratio of winding-up compression tolerance.4, the jet length that arrives in the filter bag is short, and ash-removal effect is poor.
The utility model content
Technical problem to be solved in the utility model provides a kind of conduction type pulse blowing deashing device of belt speed difference jets, it not only can effectively be removed near the dust stratification in the height of filter pocket mouths 200mm-400mm, the total pressure of dust pelletizing system is reduced, and the length of elongation center's jet effectively, and entrainmenting central jet near filter bag limit wall, increase the intensity of jet, thereby more effectively carried out deashing.
The technical scheme that its technical problem that solves the utility model adopts is: the conduction type pulse blowing deashing device that a kind of belt speed difference jets is provided, comprise winding-up pipe a, winding-up pipe b, winding-up short tube and drainage tube, the spout place of described winding-up pipe a is provided with a winding-up short tube, what connect with winding-up short tube lower end is drainage tube, it is characterized in that: the central axis of described winding-up short tube is provided with a central jet pipe, there is a central jet hole bottom at the winding-up short tube, be provided with the little jet orifice of a circle on anchor ring around the described central jet hole, winding-up short tube and central jet pipe are connected in respectively on winding-up pipe a and the winding-up pipe b.
Described winding-up pipe a and winding-up pipe b can be controlled by same pulse valve.
There is a central jet hole (8) bottom of described winding-up short tube (3), and anchor ring is provided with a circle jet orifice (9) around central jet hole (8), by central jet hole (8) and on every side the jet of the jet orifice (9) on the anchor ring form fast difference jets.
By central jet hole (8) and on every side anchor ring be provided with the fast difference jets that the jet of the little jet orifice (9) of a circle forms, spray in the filter bag by drainage tube (4).
Beneficial effect
In the conduction type pulse blowing deashing device of described a kind of belt speed difference jets, the compressed air of central jet hole winding-up forms central jet, anchor ring orifice jet around the compressed air of the little jet orifice ejection around the central jet hole on the anchor ring forms, the speed of central jet and anchor ring orifice jet on every side is different then to form fast difference jets, described fast difference jets blows to mozzle, blows to filter bag again.Jet can be induced the length of central jet with the prolongation jet effectively on every side, and entrainmenting central jet near filter bag limit wall, has increased the intensity of jet, in addition to also carrying out deashing effectively near the filtrate in the height of filter pocket mouths 200mm-400mm.
Description of drawings
Fig. 1 is the structural representation of the conduction type pulse blowing deashing device of a kind of belt speed difference jets of the present utility model.
Fig. 2 is the generalized section along A-A line among Fig. 1.
Fig. 3 is the internal structure schematic diagram of the conduction type pulse blowing deashing device of a kind of belt speed difference jets of the present utility model.
Fig. 4 is the user mode schematic diagram of the conduction type pulse blowing deashing device of a kind of belt speed difference jets of the present utility model.
Among the figure: 1. a is managed in winding-up, 2. winding-up pipe b, 3. winding-up short tube, 4. drainage tube, 5. central jet pipe, 6. filter pocket mouths, 7. filter bag, 8. central jet hole, 9. the little jet orifice around the central jet hole, the 10. winding-up jet among the winding-up pipe a, the winding-up jet among the 11. winding-up pipe b, 12. anchor ring orifice jet on every side, 13. central jets.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the conduction type pulse blowing deashing device of a kind of belt speed difference jets of the present utility model is by winding-up pipe a, winding-up pipe b, winding-up short tube, drainage tube, central jet pipe, central jet hole, the jet orifice on the anchor ring etc. is partly formed on every side.
The conduction type pulse blowing deashing device of a kind of belt speed difference jets of the present utility model has a winding-up pipe a 1, and the spout place of winding-up pipe a1 is provided with a winding-up short tube 3, what connect with short tube 3 lower ends of jetting is drainage tube 4.The central axis of winding-up short tube 3 is provided with a central jet pipe 5, in the bottom of winding-up short tube 3 a central jet hole 8 is arranged, and is provided with the little jet orifice 9 of a circle on anchor ring around the described central jet hole 8.Winding-up short tube 3 and central jet pipe 5 are connected in respectively on winding-up pipe a1 and the winding-up pipe b2, and described winding-up pipe a1 and winding-up pipe b2 can be controlled by same pulse valve.
The conduction type pulse blowing deashing device of a kind of belt speed difference jets of the present utility model is when carrying out deashing to the filter bag surface, to make compressed air winding-up simultaneously in winding-up pipe a1 and winding-up pipe b2, the compressed air of central jet pipe 5 winding-ups forms central jet 13, anchor ring orifice jet 12 around the compressed air of little jet orifice 9 ejections around the central jet hole 8 on the anchor ring forms, the speed of central jet 13 and anchor ring orifice jet 12 on every side is different then to form fast difference jets, described fast difference jets blows to drainage tube 4, blows to filter bag 7 again.In the winding-up process, anchor ring orifice jet 12 can induce central jet 13 to prolong the length of jet effectively on every side, but gases a large amount of around in the drainage clean room are in the winding-up air-flow, winding-up throughput and intensity have been increased, in addition to also carrying out deashing effectively near the filtrate in the height of filter pocket mouths 200mm-400mm.

Claims (4)

1. the conduction type pulse blowing deashing device of a belt speed difference jets, comprise winding-up pipe a (1), winding-up pipe b (2), winding-up short tube (3) and drainage tube (4), the spout place of described winding-up pipe a (1) is provided with a winding-up short tube (3), what connect with winding-up short tube (3) lower end is drainage tube (4), it is characterized in that: the central axis of described winding-up short tube (3) is provided with a central jet pipe (5), there is a central jet hole (8) bottom at winding-up short tube (3), be provided with the little jet orifice (9) of a circle on anchor ring around the described central jet hole (8), winding-up short tube (3) and central jet pipe (5) are connected in respectively on winding-up pipe a (1) and the winding-up pipe b (2).
2. the conduction type pulse blowing deashing device of a kind of belt speed difference jets according to claim 1 is characterized in that: described winding-up pipe a (1) and winding-up pipe b (2) are controlled by same pulse valve.
3. the conduction type pulse blowing deashing device of a kind of belt speed difference jets according to claim 1, it is characterized in that: there is a central jet hole (8) bottom of described winding-up short tube (3), anchor ring is provided with a circle jet orifice (9) around the central jet hole (8), by central jet hole (8) and on every side the jet of the jet orifice (9) on the anchor ring form fast difference jets.
4. the conduction type pulse blowing deashing device of a kind of belt speed difference jets according to claim 3, it is characterized in that: by central jet hole (8) and on every side anchor ring be provided with the fast difference jets that the jet of the little jet orifice (9) of a circle forms, spray in the filter bag by drainage tube (4).
CNU200820156757XU 2008-12-09 2008-12-09 Drainage type pulse blast cleaning device with velocity difference jet Expired - Fee Related CN201337853Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200820156757XU CN201337853Y (en) 2008-12-09 2008-12-09 Drainage type pulse blast cleaning device with velocity difference jet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200820156757XU CN201337853Y (en) 2008-12-09 2008-12-09 Drainage type pulse blast cleaning device with velocity difference jet

Publications (1)

Publication Number Publication Date
CN201337853Y true CN201337853Y (en) 2009-11-04

Family

ID=41233388

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200820156757XU Expired - Fee Related CN201337853Y (en) 2008-12-09 2008-12-09 Drainage type pulse blast cleaning device with velocity difference jet

Country Status (1)

Country Link
CN (1) CN201337853Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492173A (en) * 2014-11-26 2015-04-08 成都博世德能源科技股份有限公司 Three-stage air filtration system
CN104500231A (en) * 2014-11-26 2015-04-08 成都博世德能源科技股份有限公司 Efficient recycling air filtration device used for gas turbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492173A (en) * 2014-11-26 2015-04-08 成都博世德能源科技股份有限公司 Three-stage air filtration system
CN104500231A (en) * 2014-11-26 2015-04-08 成都博世德能源科技股份有限公司 Efficient recycling air filtration device used for gas turbine
CN104492173B (en) * 2014-11-26 2017-01-18 成都博世德能源科技股份有限公司 Three-stage air filtration system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091104

Termination date: 20121209

C17 Cessation of patent right