CN105127017A - Separation single tube used for third-level cyclone separator - Google Patents
Separation single tube used for third-level cyclone separator Download PDFInfo
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- CN105127017A CN105127017A CN201510646087.4A CN201510646087A CN105127017A CN 105127017 A CN105127017 A CN 105127017A CN 201510646087 A CN201510646087 A CN 201510646087A CN 105127017 A CN105127017 A CN 105127017A
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Abstract
The invention discloses a separation single tube used for a third-level cyclone separator and relates to the technical field of the petrochemical industry and the coal chemical industry. According to the separation single tube, the pressure drop and the energy consumption can be lowered, and the separation efficiency can also be improved. The separation single tube used for the third-level cyclone separator comprises a single tube cylinder body. The top of the single tube cylinder body is provided with rectangular gas inlet pipes tangential to the side wall of the single tube cylinder body, and the bottom of the single tube cylinder body is provided with a gas exhaust pipe extending into the bottom of the single tube cylinder body. The separation single tube is mainly applied to the gas-solid separation process of the third-level cyclone separator of an energy recovery system of a reaction-regeneration device in the petrochemical industry and the coal chemical industry. The rectangular gas inlet pipes and the gas exhaust pipe are arranged on the top and at the bottom of the single tube cylinder body respectively, and the single tube cylinder body of the separation single tube is of a straight-cylinder-shaped structure, so that the generation of inner rotational flow is avoided; in addition, the rectangular gas inlet pipes are tangential to the side wall of the single tube cylinder body so that the pressure drop and the energy consumption of the separation single tube can be lowered effectively, and meanwhile the separation efficiency of the separation single tube is improved.
Description
Technical field
The present invention relates to petrochemical industry and technical field of coal chemical industry, especially relate to a kind of separation single tube for third-stage cyclone separator.
Background technology
At present, in petrochemical industry and technical field of coal chemical industry, the energy that the ash-laden gas that regenerator produces is corresponding accounts for the significant proportion of the gross energy produced in whole system, therefore in order to the utilization rate of energy in raising system, can reclaim this part energy that regenerator produces by utilizing flue gas turbine expander.But, because the catalyst granules in ash-laden gas can cause wearing and tearing to flue gas turbine expander, even cause unplanned property to stop work to production line, produce unnecessary economic loss; Therefore for avoiding the generation of above-mentioned phenomenon, usually before flue gas turbine expander, third-stage cyclone separator is set up, all reach Con trolling index with the domain size distribution of the concentration and catalyst that make the catalyst contained in ash-laden gas, thus ensure the safe operation that flue gas turbine expander can be steady in a long-term.
Multiple separation single tube can be installed, separation single tube of the prior art in third-stage cyclone separator, generally include reverse-flow separation single tube and be separated single tube with single flow.Wherein, because the air inlet of reverse-flow separation single tube and exhaust outlet are all positioned at the top of single tube, and the bottom section of reverse-flow separation single tube is cone section structure, therefore inward eddy gas can be produced therein, thus cause that the pressure drop of reverse-flow separation single tube is high, energy consumption is large, and ash-laden gas easily distributes inequality and causes reverse-flow separation single tube to occur the problems such as blocking in third-stage cyclone separator gas distributing chamber.The air inlet of single flow separation single tube and exhaust outlet lay respectively at top and the bottom of single tube, and single flow separation single tube is straight barrel type structure, and its inside can not produce inward eddy gas, can overcome the deficiency in reverse-flow separation single tube; When the intake method being separated single tube is when adopting axial admission, namely airintake direction is consistent with the axial direction of single tube, catalyst granules in ash-laden gas is easily directed to blade and smashes, thus cause small particle diameter catalyst granules content to increase, and then the separative efficiency causing axial admission to be separated single tube obviously reduces.
Therefore, present inventor finds how to provide a kind of separation single tube for third-stage cyclone separator, the pressure drop and energy consumption that are separated single tube can either be reduced, the separative efficiency being separated single tube can be improved again, become the technical problem that those skilled in the art need solution badly.
Summary of the invention
The object of the present invention is to provide a kind of separation single tube for third-stage cyclone separator, to provide one can either reduce pressure drop and energy consumption, the separation single tube of separative efficiency can be improved again.
The invention provides a kind of separation single tube for third-stage cyclone separator, comprise single tube cylindrical shell, the top of described single tube cylindrical shell is provided with rectangular air inlet pipe, the tangent setting of sidewall of described rectangular air inlet pipe and described single tube cylindrical shell; The bottom of described single tube cylindrical shell is provided with blast pipe, and the bottom section that described blast pipe stretches into described single tube cylindrical shell is arranged.
Wherein, described rectangular air inlet pipe is at least provided with two, and multiple described rectangular air inlet pipe is uniformly distributed along the circumferential direction of described single tube cylindrical shell.
Particularly, the length of the air inlet of described rectangular air inlet pipe is 1.5-2.5 with the ratio of width.
During practical application, the diapire of described single tube cylindrical shell offers multiple dust-exhausting port, multiple described dust-exhausting port is uniformly distributed along the circumferential direction of described blast pipe.
Wherein, the gross area of multiple described dust-exhausting port is the 3%-15% of the cross-sectional area of described single tube cylindrical shell.
Particularly, described dust-exhausting port is circular port structure.
Further, described dust-exhausting port is fan-shaped mouth structure.
Preferably, the internal diameter of described blast pipe is 0.2-0.8 with the ratio of the internal diameter of described single tube cylindrical shell.
Relative to prior art, the separation single tube for third-stage cyclone separator of the present invention has following advantage:
Provided by the inventionly comprise single tube cylindrical shell in the separation single tube of third-stage cyclone separator, the top of single tube cylindrical shell and its sidewall is tangent is provided with rectangular air inlet pipe, the bottom of single tube cylindrical shell is provided with the blast pipe stretching into its bottom section.Analyze known thus, provided by the invention in the separation single tube of third-stage cyclone separator, because rectangular air inlet pipe and blast pipe lay respectively at top and the bottom setting of single tube cylindrical shell, and the single tube cylindrical shell being separated single tube is straight barrel type structure, therefore its inside can not produce inward eddy gas, thus effectively can reduce the pressure drop and energy consumption that are separated single tube; Simultaneously, due to the tangent setting of sidewall of rectangular air inlet pipe and single tube cylindrical shell, namely the airintake direction of rectangular air inlet pipe is vertical with the axial direction of single tube cylindrical shell, with axial admission mode be separated compared with single tube, catalyst granules can not produce small particle diameter catalyst granules because clashing into guide vane, therefore, it is possible to effectively suppression catalyst granules is directed to the phenomenon that blade is smashed, thus effectively can improve the separative efficiency being separated single tube.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, 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.
Longitudinal sectional structure schematic diagram of the separation single tube for third-stage cyclone separator that Fig. 1 provides for the embodiment of the present invention;
A kind of horizontal sectional structure schematic diagram for rectangular air inlet pipe in the separation single tube of third-stage cyclone separator that Fig. 2 provides for the embodiment of the present invention;
The another kind that Fig. 3 provides for the embodiment of the present invention is for the horizontal sectional structure schematic diagram of rectangular air inlet pipe in the separation single tube of third-stage cyclone separator;
Another horizontal sectional structure schematic diagram for rectangular air inlet pipe in the separation single tube of third-stage cyclone separator that Fig. 4 provides for the embodiment of the present invention;
A kind of horizontal sectional structure schematic diagram for blast pipe in the separation single tube of third-stage cyclone separator and dust-exhausting port that Fig. 5 provides for the embodiment of the present invention;
The another kind that Fig. 6 provides for the embodiment of the present invention is for the horizontal sectional structure schematic diagram of blast pipe in the separation single tube of third-stage cyclone separator and dust-exhausting port;
Longitudinal sectional structure schematic diagram of the third-stage cyclone separator that Fig. 7 provides for the embodiment of the present invention.
Reference numeral:
1-single tube cylindrical shell; 2-rectangular air inlet pipe; 3-blast pipe;
11-dust-exhausting port; 4-third-stage cyclone separator cylindrical shell; The import of 41-ash-laden gas;
42-purifying smoke exports; 51-upper spacer; 61-gas distributing chamber;
52-lower clapboard; 62-dust storage chamber; 63-collection chamber;
7-dust flue; 81-first retainer ring; 82-second retainer ring.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Longitudinal sectional structure schematic diagram of the separation single tube for third-stage cyclone separator that Fig. 1 provides for the embodiment of the present invention; A kind of horizontal sectional structure schematic diagram for rectangular air inlet pipe in the separation single tube of third-stage cyclone separator that Fig. 2 provides for the embodiment of the present invention.
As shown in Figure 1 with Figure 2, the separation single tube for third-stage cyclone separator that the embodiment of the present invention provides, comprise single tube cylindrical shell 1, the top of single tube cylindrical shell 1 is provided with rectangular air inlet pipe 2, the tangent setting of sidewall of rectangular air inlet pipe 2 and single tube cylindrical shell 1; The bottom of single tube cylindrical shell 1 is provided with blast pipe 3, and the bottom section that blast pipe 3 stretches into single tube cylindrical shell 1 is arranged.
Relative to prior art, the separation single tube for third-stage cyclone separator described in the embodiment of the present invention has following advantage:
The embodiment of the present invention provide in the separation single tube of third-stage cyclone separator, comprise single tube cylindrical shell 1, the top of single tube cylindrical shell 1 and its sidewall is tangent is provided with rectangular air inlet pipe 2, the bottom of single tube cylindrical shell 1 is provided with the blast pipe 3 stretching into its bottom section.Analyze known thus, the embodiment of the present invention provide in the separation single tube of third-stage cyclone separator, because rectangular air inlet pipe 2 and blast pipe 3 lay respectively at top and the bottom setting of single tube cylindrical shell 1, and the single tube cylindrical shell 1 being separated single tube is straight barrel type structure, therefore its inside can not produce inward eddy gas, thus effectively can reduce the pressure drop and energy consumption that are separated single tube; Simultaneously, due to rectangular air inlet pipe 2 and the tangent setting of sidewall of single tube cylindrical shell 1, namely the airintake direction of rectangular air inlet pipe 2 is vertical with the axial direction of single tube cylindrical shell 1, with axial admission mode be separated compared with single tube, catalyst granules can not produce small particle diameter catalyst granules because clashing into guide vane, therefore, it is possible to effectively suppression catalyst granules is directed to the phenomenon that blade is smashed, thus effectively can improve the separative efficiency being separated single tube.
It should be added that, above-mentioned blast pipe 3 is specially coaxial setting with single tube cylindrical shell 1 herein.
Wherein, as shown in Figure 2, the top being separated the single tube cylindrical shell 1 of single tube only can be provided with a rectangular air inlet pipe 2, and this rectangular air inlet pipe 2 and the tangent setting of sidewall of single tube cylindrical shell 1, be now separated the form that single tube corresponds to one-way air inlet.
The another kind that Fig. 3 provides for the embodiment of the present invention is for the horizontal sectional structure schematic diagram of rectangular air inlet pipe in the separation single tube of third-stage cyclone separator; Another horizontal sectional structure schematic diagram for rectangular air inlet pipe in the separation single tube of third-stage cyclone separator that Fig. 4 provides for the embodiment of the present invention.
During practical application, in order to improve the separative efficiency being separated single tube further, as shown in Figure 3 and Figure 4, above-mentioned rectangular air inlet pipe 2 can at least be provided with two, the circumferential direction that multiple rectangular air inlet pipe 2 is preferably along single tube cylindrical shell 1 is uniformly distributed, thus by adopting the mode of multidirectional air inlet, to enable, the flow pattern of the ash-laden gas of the multiple air inlet port regions corresponding to multiple rectangular air inlet pipe 2 of separation single tube is symmetrical, flow field can be stablized, and then can reach the object improving the separative efficiency being separated single tube further.
As shown in Figure 3, rectangular air inlet pipe 2 can be interval with two along the circumferential direction of single tube cylindrical shell 1, and two rectangular air inlet pipe 2 are preferably in circumference symmetrical, the i.e. point of contact of a rectangular air inlet pipe 2 and single tube cylindrical shell 1, and the internal diameter (as shown in thick dashed line in Fig. 3) that the line between another rectangular air inlet pipe 2 and point of contact of single tube cylindrical shell 1 is single tube cylindrical shell 1, and the airintake direction of two rectangular air inlet pipe 2 is contrary, be now separated the form that single tube corresponds to bidirection air intake; Or, as shown in Figure 4, rectangular air inlet pipe 2 can be interval with three along the circumferential direction of single tube cylindrical shell 1, and three rectangular air inlet pipe 2 are preferably in circumference symmetrical, the i.e. line in a rectangular air inlet pipe 2 and the point of contact of single tube cylindrical shell 1 and the axle center of single tube cylindrical shell 1, the angle that the line in the axle center of the rectangular air inlet pipe 2 adjacent with another and the point of contact of single tube cylindrical shell 1 and single tube cylindrical shell 1 is formed is 120 degree (as shown in the angles between two thick dashed line adjacent in Fig. 4), is now separated the form that single tube corresponds to three-way air inlet.
As shown in Fig. 1 composition graphs 2-Fig. 4, the length of the air inlet of rectangular air inlet pipe 2 can be preferably 1.5-2.5 with the ratio of width, thus is beneficial to each air inlet 2 to the control of the charge flow rate of self, and then ensures that being separated single tube has efficient separative efficiency.Wherein, as shown in Figure 1, the length of the air inlet of rectangular air inlet pipe 2 can be b, width can for a, i.e. b/a=1.5-2.5.During practical set, rectangular air inlet pipe 2 can be fixed with single tube cylindrical shell 1 by the mode of welding and be connected; Certainly, rectangular air inlet pipe 2 also preferably can adopt to be formed in one with single tube cylindrical shell 1 and arrange, thus improves the overall robustness being separated single tube, increases its service life.
A kind of horizontal sectional structure schematic diagram for blast pipe in the separation single tube of third-stage cyclone separator and dust-exhausting port that Fig. 5 provides for the embodiment of the present invention; The another kind that Fig. 6 provides for the embodiment of the present invention is for the horizontal sectional structure schematic diagram of blast pipe in the separation single tube of third-stage cyclone separator and dust-exhausting port.
During practical application, in order to make separation single tube not only have good degassing function, also there is good dust discharging function, as shown in Fig. 1 composition graphs 5-Fig. 6 simultaneously, the diapire of single tube cylindrical shell 1 can offer multiple dust-exhausting port 11, multiple dust-exhausting port 11 can be uniformly distributed along the circumferential direction of blast pipe 3.When ash-laden gas is entered after in single tube cylindrical shell 1 by the rectangular air inlet pipe 2 being separated single tube; under the influence of centrifugal force; catalyst granules in ash-laden gas can be thrown toward the inwall of single tube cylindrical shell 1; and by the air-flow moved downward near inwall, catalyst granules is taken to the diapire of single tube cylindrical shell 1 along the inwall of single tube cylindrical shell 1; thus catalyst granules can be discharged by the multiple dust-exhausting ports 11 on diapire, and purifying smoke can be discharged by the blast pipe 3 being separated single tube.
When actual production manufactures, the concrete structure of above-mentioned dust-exhausting port 11 can not be restricted, and namely dust-exhausting port 11 can be set to rectangular opening structure, square mouth structure, trapezoidal mouth structure or circular port structure etc.
Wherein, for solving the problem of the easy blockage phenomenon of dust discharge place of separation single tube of the prior art, the embodiment of the present invention provide in the separation single tube of third-stage cyclone separator, the gross area of multiple dust-exhausting port 11 preferably accounts for the 3%-15% of the cross-sectional area of single tube cylindrical shell 1, thus can effectively avoid dust-exhausting port 11 that the phenomenon of blocking occurs.
Separation single tube of the prior art is for avoiding dust discharge place blockage phenomenon, usual employing increases the gap width of dust discharge place, thus by increasing dust discharge area to solve blockage problem, but the increase of dust discharge area can cause the capacity being separated single tube to increase, and then cause the catalyst granules separated to be returned in separation single tube by blowback again, cause the separative efficiency being separated single tube to reduce.
The embodiment of the present invention provide in the separation single tube of third-stage cyclone separator, whether unimpeded for solving dust discharge place being separated single tube in above-mentioned prior art, whether suitably cannot accomplish the problem that has both as shown in Figure 5 and Figure 6, dust-exhausting port 11 can be set to circular port structure with capacity; Or, dust-exhausting port 11 can be set to fan-shaped mouth structure, thus pass through the dust-exhausting port 11 of circular port structure or fan-shaped mouth structure, with when ensureing that the area of dust-exhausting port 11 is constant, increase the gap width of dust-exhausting port 11, namely, when ensureing that the capacity of dust-exhausting port 11 is constant, the problem of the easy catalyzed dose of Particle Blocking of dust-exhausting port 11 is efficiently solved.
Particularly, as shown in Figure 5, when dust-exhausting port 11 is set to circular port structure, the circumferential direction interval be preferably along blast pipe 3 is evenly distributed with six dust-exhausting ports 11; As shown in Figure 6, when dust-exhausting port 11 is set to fan-shaped mouth structure, the circumferential direction interval be preferably along blast pipe 3 is evenly distributed with four dust-exhausting ports 11.
Certainly, the concrete quantity of dust-exhausting port 11 is also not restricted to four or six, also can be three, five etc.
It should be added that herein, when the gross area of the dust-exhausting port 11 being separated single tube is the 3%-15% of the cross-sectional area of single tube cylindrical shell 1, dust-exhausting port 11 both not easily blockage phenomenon, can ensure that again capacity is suitable, thus can effectively avoid the catalyst granules separated again by the phenomenon in blowback receipt tube cylinder 1.
Further, be separated the exhaust capacity of single tube and dust discharge ability to consider, the embodiment of the present invention provide in the separation single tube of third-stage cyclone separator, preferably the internal diameter of blast pipe 3 and the ratio of the internal diameter of single tube cylindrical shell 1 are set to 0.2-0.8; Wherein, as shown in Figure 1, the internal diameter of blast pipe 3 can be D2, single tube cylindrical shell 1 internal diameter can for D1, i.e. D2/D1=0.2-0.8.
In addition, as shown in Figure 1, the height of single tube cylindrical shell 1 can be preferably 3-5 with the ratio of the internal diameter of single tube cylindrical shell 1, and namely the height of single tube cylindrical shell 1 can be L1, then L1/D1=3-5; Blast pipe 3 stretches out the height of single tube cylindrical shell 1 can be preferably 0.5-3 with the ratio of the internal diameter of single tube cylindrical shell 1, and namely blast pipe 3 stretches out the height of single tube cylindrical shell 1 can be L2, then L2/D1=0.5-3; Blast pipe 3 stretches into the height of single tube cylindrical shell 1 can be preferably 0.5-3 with the ratio of the internal diameter of single tube cylindrical shell 1, and namely blast pipe 3 stretches into the height of single tube cylindrical shell 1 can be L3, then L3/D1=0.5-3.
Longitudinal sectional structure schematic diagram of the third-stage cyclone separator that Fig. 7 provides for the embodiment of the present invention.
A kind of third-stage cyclone separator, the separation single tube for third-stage cyclone separator as described in above-mentioned any one is provided with in this third-stage cyclone separator, owing to being provided with the separation single tube that effectively can improve separative efficiency in this third-stage cyclone separator, therefore above-mentioned third-stage cyclone separator also can play the effect effectively improving separative efficiency.
Wherein, as shown in Figure 1 and Figure 7, third-stage cyclone separator can comprise third-stage cyclone separator cylindrical shell 4, and the top of this third-stage cyclone separator cylindrical shell 4 can be provided with ash-laden gas import 41, bottom can be provided with purifying smoke outlet 42.Particularly, central region in third-stage cyclone separator cylindrical shell 4 can be provided with upper spacer 51, by this upper spacer 51 to third-stage cyclone separator cylindrical shell 4 top between space can be gas distributing chamber 61, the air inlet of rectangular air inlet pipe 2 being separated single tube is communicated with gas distributing chamber 61; Third-stage cyclone separator cylindrical shell 4 lower zone that is interior, that be positioned at upper spacer 51 can be provided with lower clapboard 52, and can be dust storage chamber 62 by the space between this lower clapboard 52 to upper spacer 51, the dust-exhausting port 11 being separated single tube be communicated with dust storage chamber 62; By lower clapboard 52 to third-stage cyclone separator cylindrical shell 4 bottom between space can be collection chamber 63, the gas outlet of blast pipe 3 being separated single tube is communicated with collection chamber 63.Further, third-stage cyclone separator can also include dust flue 7, and this dust flue 7 is fed through the diapire of third-stage cyclone separator cylindrical shell 4 and runs through collection chamber 63, is communicated with dust storage chamber 62.
Based on the structure of above-mentioned third-stage cyclone separator and the separation single tube for third-stage cyclone separator, in ash-laden gas, the separation process of air-flow and catalyst granules is specific as follows: first, ash-laden gas enters gas distributing chamber 61 by the ash-laden gas import 41 of third-stage cyclone separator, and tangentially enters in single tube cylindrical shell 1 by the rectangular air inlet pipe 2 being separated single tube; Then, under the influence of centrifugal force, catalyst granules is thrown toward the inwall place of single tube cylindrical shell 1, and by the air-flow moved downward near inwall, catalyst granules is taken to the diapire of single tube cylindrical shell 1 along the inwall of single tube cylindrical shell 1, discharged by the multiple dust-exhausting ports 11 on diapire to enable catalyst granules, enter in the dust storage chamber 62 of third-stage cyclone separator, then finally discharge third-stage cyclone separator by dust flue 7 again; Meanwhile, purifying smoke can be discharged by the blast pipe 3 being separated single tube, enters in the collection chamber 63 of third-stage cyclone separator, then exports 42 by the purifying smoke of third-stage cyclone separator again and finally discharges third-stage cyclone separator.
During practical application, fixing to realize being separated the installation of single tube in third-stage cyclone separator, as shown in Figure 1 and Figure 7, by the first retainer ring 81, the single tube cylindrical shell 1 being separated single tube can be welded and fixed with upper spacer 51; Meanwhile, by the second retainer ring 82, blast pipe 3 and lower clapboard 52 can also be welded and fixed further, thus realize the mounted inside of third-stage cyclone separator.
The embodiment of the present invention provide in the separation single tube of third-stage cyclone separator, the ash-laden gas in third-stage cyclone separator can uniform distribution, and be separated the layout of single tube in third level whirlwind by stages device and install also more convenient.
The separation single tube for third-stage cyclone separator that the embodiment of the present invention provides, has been applied in the transformation of certain 1,400,000 tons/year of FCC apparatus third-stage cyclone separator, and this design parameter being used for the separation single tube of third-stage cyclone separator is in table 1.
The parameter of single tube and third-stage cyclone separator cylindrical shell is separated in table 1FCC device third-stage cyclone separator.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. for a separation single tube for third-stage cyclone separator, comprise single tube cylindrical shell, it is characterized in that, the top of described single tube cylindrical shell is provided with rectangular air inlet pipe, the tangent setting of sidewall of described rectangular air inlet pipe and described single tube cylindrical shell;
The bottom of described single tube cylindrical shell is provided with blast pipe, and the bottom section that described blast pipe stretches into described single tube cylindrical shell is arranged.
2. the separation single tube for third-stage cyclone separator according to claim 1, it is characterized in that, described rectangular air inlet pipe is at least provided with two, and multiple described rectangular air inlet pipe is uniformly distributed along the circumferential direction of described single tube cylindrical shell.
3. the separation single tube for third-stage cyclone separator according to claim 2, is characterized in that, the length of the air inlet of described rectangular air inlet pipe is 1.5-2.5 with the ratio of width.
4. the separation single tube for third-stage cyclone separator according to any one of claim 1-3, is characterized in that, the diapire of described single tube cylindrical shell offers multiple dust-exhausting port, and multiple described dust-exhausting port is uniformly distributed along the circumferential direction of described blast pipe.
5. the separation single tube for third-stage cyclone separator according to claim 4, is characterized in that, the gross area of multiple described dust-exhausting port is the 3%-15% of the cross-sectional area of described single tube cylindrical shell.
6. the separation single tube for third-stage cyclone separator according to claim 5, is characterized in that, described dust-exhausting port is circular port structure.
7. the separation single tube for third-stage cyclone separator according to claim 5, is characterized in that, described dust-exhausting port is fan-shaped mouth structure.
8. the separation single tube for third-stage cyclone separator according to claim 1, is characterized in that, the internal diameter of described blast pipe is 0.2-0.8 with the ratio of the internal diameter of described single tube cylindrical shell.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174478A (en) * | 2018-08-28 | 2019-01-11 | 中石化（洛阳）科技有限公司 | A kind of Combined vertical flow separation single tube and cyclone separator |
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