CN204275795U - A kind of Venturi tube - Google Patents
A kind of Venturi tube Download PDFInfo
- Publication number
- CN204275795U CN204275795U CN201420681811.8U CN201420681811U CN204275795U CN 204275795 U CN204275795 U CN 204275795U CN 201420681811 U CN201420681811 U CN 201420681811U CN 204275795 U CN204275795 U CN 204275795U
- Authority
- CN
- China
- Prior art keywords
- section
- entrance
- venturi tube
- flue gas
- inlet cylinders
- 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
Links
- 238000005452 bending Methods 0.000 claims abstract description 8
- 230000008602 contraction Effects 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 40
- 239000003546 flue gas Substances 0.000 abstract description 40
- 238000005201 scrubbing Methods 0.000 abstract description 22
- 238000006477 desulfuration reaction Methods 0.000 abstract description 17
- 230000023556 desulfurization Effects 0.000 abstract description 17
- 239000002245 particle Substances 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 description 23
- 239000000203 mixture Substances 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Abstract
The utility model discloses a kind of Venturi tube, belong to filed of flue gas purification.This Venturi tube comprises: the inlet cylinders section connected in turn, back taper contraction section, trunnion section and outlet diffuser; The top of inlet cylinders section is provided with the first entrance, and the sidepiece of inlet cylinders section is provided with the second entrance, and the area of the first entrance is greater than the area of the second entrance; Outlet diffuser is made up of the vertical section connected in turn, bending changeover portion and horizontal segment, and vertical section is reverse taper shape, and horizontal segment cylindrically.The Venturi tube that the utility model provides can carry out flue gas desulfurization and particle with the scrubbing tower merging that matches, and scrubbing tower is protected and reduces the energy consumption of flue gas desulfurization course.
Description
Technical field
The utility model relates to filed of flue gas purification, particularly a kind of Venturi tube.
Background technology
China is production of energy consumption big country, and in the energy resource structure system of China, coal accounts for 75% of whole energy resource structure system.Along with the fast development of national economy, along with being on the increase of Coal-fired capacity, the discharge capacity of SO2 and particulate pollutant wherein is also on the increase, and causes very large threat for ecological environment.So, be necessary to carry out desulfurization and retting conditions thing to catalytic cracking unit regenerated flue gas or power plant stack gas.
Usually utilize scrubbing tower to carry out desulfurization and the retting conditions thing of flue gas at present.Wherein, multilayer nozzle is set in scrubbing tower, the top-down circulation alkali liquor of tower top is contacted with flue gas adverse current from bottom to top at the bottom of tower, utilizes the sulphur in alkali liquor absorption flue gas and particle, to reach the object of flue gas being carried out to desulfurization and retting conditions thing.
But, in actual motion, designer finds that the above-mentioned scrubbing tower utilizing prior art to provide carries out flue gas desulfurization and particle, not only can increase the source (such as waste heat boiler etc.) of flue gas, improve the probability of scrubbing tower consume, also can increase energy consumption further.Therefore, in order to solve the problem, be necessary to provide a kind of flue gas desulfurization that can coordinate with scrubbing tower and particle device, making flue gas can complete desulfurization and particle process before entering scrubbing tower, thus reach protection scrubbing tower and reduce the object of energy consumption.
Utility model content
The utility model embodiment technical problem to be solved is, provides a kind of can matching the Venturi tube merging and can carry out flue gas desulfurization and particle with scrubbing tower.Concrete technical scheme is as follows:
A kind of Venturi tube, comprising: the inlet cylinders section connected in turn, back taper contraction section, trunnion section and outlet diffuser;
The top of described inlet cylinders section is provided with the first entrance, and the sidepiece of described inlet cylinders section is provided with the second entrance, and the area of described first entrance is greater than the area of described second entrance;
Described outlet diffuser is made up of the vertical section connected in turn, bending changeover portion and horizontal segment, and described vertical section is cone-shaped, and described horizontal segment cylindrically.
As preferably, the cross section of described trunnion section is rectangular.
Particularly, the equivalent diameter of the rectangular cross section of described trunnion section is less than the diameter of the circular cross section of described inlet cylinders section.
Particularly, in described outlet diffuser, the diameter of the circular cross section of described vertical section any position and the diameter of described horizontal segment circular cross section are all greater than the equivalent diameter of the rectangular cross section of described trunnion section.
As preferably, the number of described second entrance is two, and two described second entrances are relatively arranged on the sidepiece of described inlet cylinders section.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The Venturi tube that the utility model embodiment provides, comprises the inlet cylinders section, back taper contraction section, trunnion section and the diffuser that connect in turn.By arranging the first entrance at the top of inlet cylinders section; high pressure flue gas is passed into in the vertical direction; at the sidepiece of inlet cylinders section, the second entrance is set; for tangentially passing into circulation alkali liquor; circulation alkali liquor is mixed with high pressure flue gas; utilize circulation alkali liquor effectively to adsorb sulphur in flue gas and particle, make this mixture before entering scrubbing tower, just complete flue gas desulfurization and particle process, scrubbing tower is protected and reduces energy consumption.And be less than the first entrance due to the area of the second entrance, and flue gas is mutually vertical with the approach axis of circulation alkali liquor, circulation alkali liquor can be made to be broken into micron order drop by high pressure flue gas, to increase contact area between the two, the corresponding efficiency that improve desulfurization and particle.By the structure that outlet diffuser is set to be made up of the vertical section connected in turn, bending changeover portion and horizontal segment, this Venturi tube is not only facilitated to be connected with scrubbing tower by horizontal segment, and be beneficial to reduce its flow velocity before alkali lye and smoke mixture enter scrubbing tower, be convenient to this mixture in scrubbing tower, carry out follow-up gas-liquid separation process.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the Venturi tube that the utility model embodiment provides;
Fig. 2 is the structural representation of the inlet cylinders section of the Venturi tube that the another embodiment of the utility model provides.
Reference numeral represents respectively:
1 inlet cylinders section,
11 first entrances,
12 second entrances,
2 back taper contraction sections,
3 trunnion sections,
4 outlet diffusers,
41 vertical sections,
42 bending changeover portions,
43 horizontal segments.
Detailed description of the invention
For making the technical solution of the utility model and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
The structural representation of the Venturi tube that accompanying drawing 1 provides for the utility model embodiment.As shown in Figure 1, this Venturi tube, comprising: the inlet cylinders section 1 connected in turn, back taper contraction section 2, trunnion section 3 and outlet diffuser 4;
The top of inlet cylinders section 1 is provided with the first entrance 11, and the area that the sidepiece of inlet cylinders section 1 is provided with the second entrance 12, first entrance 11 is greater than the area of the second entrance 12;
Outlet diffuser 4 is made up of the vertical section 41 connected in turn, bending changeover portion 42 and horizontal segment 43, and vertical section 41 is in cone-shaped, and horizontal segment 43 cylindrically.
The Venturi tube that the utility model embodiment provides, by arranging the first entrance 11 at the top of inlet cylinders section 1, pass into high pressure flue gas in the vertical direction, the second entrance 12 being set at the sidepiece of inlet cylinders section 1, tangentially entering Venturi tube for making circulation alkali liquor.Setting like this; circulation alkali liquor can not only be made to mix with high pressure flue gas; circulation alkali liquor is utilized effectively to adsorb sulphur in flue gas and particle; make the mixture of circulation alkali liquor and high pressure flue gas before entering scrubbing tower, just complete flue gas desulfurization and particle process, scrubbing tower is protected and reduces energy consumption.And be less than the first entrance 11 due to the area of the second entrance 12, flue gas is mutually vertical with the approach axis of circulation alkali liquor, can make circulation alkali liquor under the effect of high pressure flue gas, be broken into micron order drop (liquid-drop diameter can between 100-800 μm), add the contact area with flue gas, the corresponding efficiency that improve desulfurization and particle.Outlet diffuser 4 is made up of the vertical section 41 connected in turn, bending changeover portion 42 and horizontal segment 43, and on the one hand, horizontal segment 43 is convenient to this Venturi tube is connected with scrubbing tower; On the other hand, the mixture that bending changeover portion 42 is beneficial to circulation alkali liquor and high pressure flue gas reduces flow velocity before entering scrubbing tower, is convenient to this mixture in scrubbing tower, carries out follow-up gas-liquid separation process.
The Venturi tube that the utility model embodiment provides can pass into the high pressure flue gas that pressure is about 2-8KPa (g), correspondingly to circulation alkali liquor to enter pressure requirements lower, this also effectively can reduce the energy consumption of flue gas desulfurization course,
Further, the cross section of this trunnion section 3 is rectangular.
The Venturi tube that the utility model embodiment provides is by being set to rectangle by the cross section of trunnion section 3, not only make flue gas and the distribution of circulation alkali liquor in both mixtures more even, the speed of this mixture can also be improved, its degree of atomization of corresponding raising, is beneficial to removing of sulfureous in flue gas and particle.
Conveniently high pressure flue gas and circulation alkali liquor enter Venturi tube in a large number after, violent mixing, to mix, the equivalent diameter of the rectangular cross section of trunnion section 3 is defined as the diameter of the circular cross section being less than inlet cylinders section 1 by the utility model embodiment, thus at high pressure flue gas and circulation alkali liquor after inlet cylinders section 1 enters Venturi tube easily, due to along trunnion section 3, the internal diameter of Venturi tube reduces gradually, and the cross section of trunnion section 3 is rectangle, increase the collision between flue gas and the mixture of circulation alkali liquor, the flow velocity of this mixture will increase rapidly, not only make both mixing more even, and the degree of atomization of flue gas and circulation alkali liquor mixture can be improved, be beneficial to the raising of desulfurization and retting conditions thing efficiency.
Wherein, back taper contraction section 2 is arranged between inlet cylinders section 1 and trunnion section 3, and as transition, to make by inlet cylinders section 1 to trunnion section 3, the radical length of Venturi tube inside reduces gradually.
Further, controllably scrubbing tower is entered in order to make the mixture of the flue gas after desulfurization and alkali lye, the utility model embodiment is in outlet diffuser 4, the diameter of the circular cross section of vertical section 41 any position and the diameter of horizontal segment 43 circular cross section are defined as the equivalent diameter of the rectangular cross section being all greater than trunnion section 3, thus mixture flow velocity is herein reduced, be convenient to it and follow-uply controllably enter scrubbing tower.
As preferably, as shown in Figure 2, in order to improve the efficiency of desulfurization and retting conditions thing, the number of the second entrance 12 is preferably being set to two by the utility model embodiment, and two the second entrances 12 are relatively arranged on the sidepiece of inlet cylinders section 1.
Further, the size of Venturi tube that the utility model embodiment provides can adjust according to the demand of the amount of flue gas and the alkali lye amount removing sulfur dioxide in flue gas, particle etc.The material of this Venturi tube can be selected from carbon steel, stainless steel and with the stainless steel of ceramic coating or other metal material.
The foregoing is only preferred embodiment of the present utility model; not in order to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a Venturi tube, comprising: the inlet cylinders section connected in turn, back taper contraction section, trunnion section and outlet diffuser;
The top of described inlet cylinders section is provided with the first entrance, and the sidepiece of described inlet cylinders section is provided with the second entrance, and the area of described first entrance is greater than the area of described second entrance;
Described outlet diffuser is made up of the vertical section connected in turn, bending changeover portion and horizontal segment, and described vertical section is cone-shaped, and described horizontal segment cylindrically.
2. Venturi tube according to claim 1, is characterized in that, the cross section of described trunnion section is rectangular.
3. Venturi tube according to claim 2, is characterized in that, the equivalent diameter of the rectangular cross section of described trunnion section is less than the diameter of the circular cross section of described inlet cylinders section.
4. Venturi tube according to claim 3, it is characterized in that, in described outlet diffuser, the diameter of the circular cross section of described vertical section any position and the diameter of described horizontal segment circular cross section are all greater than the equivalent diameter of the rectangular cross section of described trunnion section.
5. the Venturi tube according to any one of claim 1-4, is characterized in that, the number of described second entrance is two, and two described second entrances are relatively arranged on the sidepiece of described inlet cylinders section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681811.8U CN204275795U (en) | 2014-11-12 | 2014-11-12 | A kind of Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681811.8U CN204275795U (en) | 2014-11-12 | 2014-11-12 | A kind of Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204275795U true CN204275795U (en) | 2015-04-22 |
Family
ID=52858995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681811.8U Expired - Fee Related CN204275795U (en) | 2014-11-12 | 2014-11-12 | A kind of Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204275795U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453586A (en) * | 2018-12-28 | 2019-03-12 | 启明星宇节能科技股份有限公司 | A kind of PM particulate matter capture device |
| CN111185091A (en) * | 2020-01-13 | 2020-05-22 | 江苏科技大学 | Desulfurization and dust removal integrated washing tower |
| CN112275112A (en) * | 2020-10-12 | 2021-01-29 | 亳州洁能电力有限公司 | Waste incineration power generation flue gas processing apparatus |
-
2014
- 2014-11-12 CN CN201420681811.8U patent/CN204275795U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453586A (en) * | 2018-12-28 | 2019-03-12 | 启明星宇节能科技股份有限公司 | A kind of PM particulate matter capture device |
| CN111185091A (en) * | 2020-01-13 | 2020-05-22 | 江苏科技大学 | Desulfurization and dust removal integrated washing tower |
| CN112275112A (en) * | 2020-10-12 | 2021-01-29 | 亳州洁能电力有限公司 | Waste incineration power generation flue gas processing apparatus |
| CN112275112B (en) * | 2020-10-12 | 2022-08-05 | 亳州洁能电力有限公司 | Waste incineration power generation flue gas processing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corp. Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee before: China National Petroleum Corp. Patentee before: China Petroleum Engineering & Construction Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |