CN104667676A - Venturi tube dust removal device - Google Patents
Venturi tube dust removal device Download PDFInfo
- Publication number
- CN104667676A CN104667676A CN201510072155.0A CN201510072155A CN104667676A CN 104667676 A CN104667676 A CN 104667676A CN 201510072155 A CN201510072155 A CN 201510072155A CN 104667676 A CN104667676 A CN 104667676A
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- CN
- China
- Prior art keywords
- section
- venturi tube
- tube dust
- dust arrester
- trunnion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/10—Venturi scrubbers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention belongs to a mechanical dust removal device and in particular relates to a venturi tube dust removal device. The device comprises a shrinkage section, a throat section and an expansion section, wherein the shrinkage section, the throat section and the expansion section are conical shells; the shrinkage section and the throat section are laminated; an annular channel is formed between the outer wall of the shrinkage section and the inner wall of the throat section; multiple small holes are formed in the throat section; the lower end of the expansion section is connected with the upper end of the throat section; and supporting ribs and an outlet baffle are arranged on the top of the expansion section. According to the device disclosed by the invention, the decontamination efficiency of a venturi tube can be obviously improved.
Description
Technical field
The invention belongs to dust removal with machine device, be specifically related to a kind of Venturi tube dust arrester.
Background technology
Produce high velocity air by means of venturi nozzle and mix with the aqueous phase that throat sprays into the effect reaching dedusting, Venturi tube to have obtained in the application of industrial aspect as wet scrubber and has developed faster, and in recent years, development along with nuclear power technology and the attention to Nuclear Safety, venturi water scrubber is introduced in again in nuclear power plant containment shell filtering emission system, for removing the radioactive substances such as aerosol in containment exhaust and iodine when reactor disaster.Although nuclear power station is identical with venturi water scrubber filtration mechanism used in other industrial circle, there is very big difference in its operational mode.In other industrial circle, Venturi tube generally adopts the mode of forcing outer spray or interior spray to carry out throat's water supply, and in nuclear power station, Venturi tube generally adopts non-active immersion operating scheme, and Venturi tube only relies on the inside and outside differential pressure of throat to realize self-priming and supplies water.Change in this method of operation, result in the removal that the venturi design directly quoting other industrial circles can not meet the radioactive substances such as aerosol in the exhaust of containment in nuclear power plant containment shell filtering emission system and iodine.
Summary of the invention
The object of this invention is to provide one can make gas medium produce high-speed motion, and sucks liquid by throat injection and reach air-water and fully mix and the Venturi tube dust arrester that improves dust removing effects.
Technical scheme of the present invention is as follows: a kind of Venturi tube dust arrester, comprise contraction section, trunnion section, expansion segment, described contraction section, trunnion section, expansion segment are conical shell, wherein, described contraction section and the stacked setting of trunnion section, form circular passage between contraction section outer wall and trunnion section inwall, trunnion section is provided with some apertures; The lower end of described expansion segment is connected with the upper end of trunnion section.
Further, Venturi tube dust arrester as above, wherein, arranges at the top of described expansion segment and supports fin and outlet damper, supports between fin and outlet damper and forms perforate.
Further, Venturi tube dust arrester as above, wherein, the bottom of described trunnion section is by the Flange joint of flange and contraction section.
Further, Venturi tube dust arrester as above, wherein, the bottom of described contraction section is connected with dusty gas pipeline by flange.
Further, Venturi tube dust arrester as above, wherein, the upper-end inner diameter of described contraction section is 10 ~ 50mm, and bottom diameter is 50 ~ 100mm, and length is 50 ~ 100mm; The radial width of the circular passage formed between contraction section outer wall and trunnion section inwall is 3mm.
Further, Venturi tube dust arrester as above, wherein, the bottom diameter of described expansion segment is 10 ~ 50mm, and upper-end inner diameter is 50 ~ 100mm, and expansion angle is 3 ~ 15 °, and length is 200 ~ 500mm.
Beneficial effect of the present invention is as follows:
(1) structure of throat's ejecting port is designed to circumferential weld pattern by the present invention, not only significantly reduces perforation resistance and increases perforation circulation area, the fluid flow of injection is greatly enhanced.Simultaneously because ejecting port and air current flow direction exist a following current angle, make driven fluid more easily arrive throat's runner center, the detersive efficiency improving Venturi tube is played an important role.
(2) the present invention is provided with at Venturi exit correct position and supports fin and baffle plate, compressing and peptizaiton are produced to " mushroom " shape air mass formed at Venturi exit time not baffled, air velocity near Venturi exit is increased, Flow vibration also obtains corresponding alleviation, makes the detersive efficiency of Venturi tube obtain larger raising.
Accompanying drawing explanation
Fig. 1 is the structural representation of Venturi tube dust arrester of the present invention.
In figure, 1. contraction section 2. trunnion section 3. expansion segment 4. supports fin 5. top flap 6. second flange 7. first flange
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, Venturi tube dust arrester provided by the present invention is fixed on dusty gas pipeline by flange 6.Venturi tube dust arrester comprises contraction section 1, trunnion section 2, expansion segment 3, and described contraction section 1, trunnion section 2, expansion segment 3 are conical shell.Wherein, described contraction section 1 and the stacked setting of trunnion section 2, form circular passage between the outer wall of contraction section 1 and the inwall of trunnion section 2, trunnion section 2 is provided with some apertures; The lower end of described expansion segment 3 is connected with the upper end of trunnion section 2, and the top of expansion segment 3 arranges and supports fin 4 and outlet damper 5, supports between fin and outlet damper and forms perforate.Trunnion section 2 is connected with the second flange 6 of contraction section by the first flange 7, and the bottom of contraction section 1 is connected with dusty gas pipeline by the second flange 6.
The upper-end inner diameter of described contraction section 1 is 10 ~ 50mm, and bottom diameter is 50 ~ 100mm, and length is 50 ~ 100mm; The radial width of the circular passage formed between contraction section 1 outer wall and trunnion section 2 inwall is 3mm.The bottom diameter of described expansion segment 3 is 10 ~ 50mm, and upper-end inner diameter is 50 ~ 100mm, and expansion angle is 3 ° ~ 15 °, and length is 200 ~ 500mm.
As a specific embodiment, the upper-end inner diameter d of contraction section 1
1for 29.1mm, bottom diameter d
2for 72.1mm, length h
1for 97.1mm, converging angles θ
2it is 25 °; The radial width of the circular passage formed between contraction section 1 outer wall and trunnion section 2 inwall is 3mm, trunnion section 2 is arranged the aperture of 4 diameter 4mm.The bottom diameter d of expansion segment 3
3for 29.1mm, upper-end inner diameter d
4for 68.9mm, expansion angle θ
1be 7 °, length h
2for 325.4mm.
Venturi tube dust arrester is arranged in the water lotion of washing filtering equipment, dusty gas is introduced by pipeline, Venturi tube dust arrester is entered at a high speed by contraction section 1, and move upward, when reaching trunnion section 2, water lotion is sucked trunnion section by the circular passage formed between contraction section 1 outer wall and trunnion section 2 inwall, fully mix with the dusty gas by Venturi tube, grit is soaked by water lotion, and be wrapped in drop, air-flow passes through expansion segment 3 together with drop subsequently, air velocity starts to reduce, pressure gos up, dust-laden drop collides mutually because of deceleration, cohesion, form the dust-laden water droplet that particle diameter is larger.These dust-laden drops carry out carbonated drink separation, thus reach efficient dedusting object after flowing out Venturi tube by the square opening supporting fin and the formation of outlet arc-shaped baffle.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technology thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. a Venturi tube dust arrester, comprise contraction section (1), trunnion section (2), expansion segment (3), described contraction section (1), trunnion section (2), expansion segment (3) are conical shell, it is characterized in that: described contraction section (1) and trunnion section (2) stacked setting, form circular passage between contraction section (1) outer wall and trunnion section (2) inwall, trunnion section (2) is provided with some apertures; The lower end of described expansion segment (3) is connected with the upper end of trunnion section (2).
2. Venturi tube dust arrester as claimed in claim 1, it is characterized in that: arrange at the top of described expansion segment (3) and support fin (4) and outlet damper (5), support between fin (4) and outlet damper (5) and form perforate.
3. Venturi tube dust arrester as claimed in claim 1, is characterized in that: described trunnion section (2) is connected with second flange (6) of contraction section by the first flange (7).
4. Venturi tube dust arrester as claimed in claim 1 or 2, is characterized in that: the bottom of described contraction section (1) is connected with dusty gas pipeline by the second flange (6).
5. Venturi tube dust arrester as claimed in claim 1 or 2, is characterized in that: the upper-end inner diameter of described contraction section (1) is 10 ~ 50mm, and bottom diameter is 50 ~ 100mm, and length is 50 ~ 100mm; The radial width of the circular passage formed between contraction section (1) outer wall and trunnion section (2) inwall is 3mm.
6. Venturi tube dust arrester as claimed in claim 4, is characterized in that: the bottom diameter of described expansion segment (3) is 10 ~ 50mm, and upper-end inner diameter is 50 ~ 100mm, and expansion angle is 3 ~ 15 °, and length is 200 ~ 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072155.0A CN104667676A (en) | 2015-02-11 | 2015-02-11 | Venturi tube dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072155.0A CN104667676A (en) | 2015-02-11 | 2015-02-11 | Venturi tube dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104667676A true CN104667676A (en) | 2015-06-03 |
Family
ID=53303582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510072155.0A Pending CN104667676A (en) | 2015-02-11 | 2015-02-11 | Venturi tube dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104667676A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578826A (en) * | 2017-08-18 | 2018-01-12 | 中国舰船研究设计中心 | Containment is constrain and washing filtering integrated system |
| CN107983551A (en) * | 2016-10-27 | 2018-05-04 | 厦门三维丝环保股份有限公司 | Pulse jet superonic flow nozzzle |
| CN108525443A (en) * | 2017-03-01 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of venturi washing sterilizer |
| CN110448978A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Self-priming more shaped Venturi dedusting washing sterilizers and its application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592262Y (en) * | 2002-12-23 | 2003-12-17 | 吴忠标 | Energy-saving efficient desulfurizing and dust eliminating upparatus by residual-heat utilization |
| CN201216911Y (en) * | 2008-01-22 | 2009-04-08 | 于仁先 | Wet dust-removing device |
| US20110057335A1 (en) * | 2009-09-07 | 2011-03-10 | National Chiao Tung University | Wetted wall venturi scrubber with a 2-stage venturi throat |
| CN202823065U (en) * | 2012-09-07 | 2013-03-27 | 白银有色集团股份有限公司 | External-spraying type anti-abrasion venturi dust removal device |
| CN103566683A (en) * | 2013-11-14 | 2014-02-12 | 哈尔滨工程大学 | Split self-suction type Venturi tube washer |
-
2015
- 2015-02-11 CN CN201510072155.0A patent/CN104667676A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592262Y (en) * | 2002-12-23 | 2003-12-17 | 吴忠标 | Energy-saving efficient desulfurizing and dust eliminating upparatus by residual-heat utilization |
| CN201216911Y (en) * | 2008-01-22 | 2009-04-08 | 于仁先 | Wet dust-removing device |
| US20110057335A1 (en) * | 2009-09-07 | 2011-03-10 | National Chiao Tung University | Wetted wall venturi scrubber with a 2-stage venturi throat |
| CN202823065U (en) * | 2012-09-07 | 2013-03-27 | 白银有色集团股份有限公司 | External-spraying type anti-abrasion venturi dust removal device |
| CN103566683A (en) * | 2013-11-14 | 2014-02-12 | 哈尔滨工程大学 | Split self-suction type Venturi tube washer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983551A (en) * | 2016-10-27 | 2018-05-04 | 厦门三维丝环保股份有限公司 | Pulse jet superonic flow nozzzle |
| CN108525443A (en) * | 2017-03-01 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of venturi washing sterilizer |
| CN107578826A (en) * | 2017-08-18 | 2018-01-12 | 中国舰船研究设计中心 | Containment is constrain and washing filtering integrated system |
| CN107578826B (en) * | 2017-08-18 | 2019-10-25 | 中国舰船研究设计中心 | Containment is constrain and washing filtering integrated system |
| CN110448978A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Self-priming more shaped Venturi dedusting washing sterilizers and its application |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |