CN1173401A - Internally circulating cyclone separating structure and appts. - Google Patents

Internally circulating cyclone separating structure and appts. Download PDF

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Publication number
CN1173401A
CN1173401A CN 97112547 CN97112547A CN1173401A CN 1173401 A CN1173401 A CN 1173401A CN 97112547 CN97112547 CN 97112547 CN 97112547 A CN97112547 A CN 97112547A CN 1173401 A CN1173401 A CN 1173401A
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China
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pipe
tangential
helicoid
cylinder body
outer cylinder
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CN 97112547
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CN1067919C (en
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张志群
李璟
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Beijing University of Chemical Technology
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Beijing University of Chemical Technology
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Publication of CN1067919C publication Critical patent/CN1067919C/en
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Abstract

An internally cyclic cyclone separator for the separation of gas from solid has central airflow raising-up pipe and dividing cylindrical body in its external cylinder. Its air inlet and outlet tubes has spiral flow guides which are gangential to the upper part of external cylinder and central raising-up pipe and the lower part of dividing cylindrical body and central raising-up pipe. The gas in purified phase region comes into dividing cylindrical body around the central raising-up pipe and is discharged from outlet tangential to spiral surface. The gas in purifying region is cyclic in the central raising-up pipe to form strengthened secondary wind for higher capture effect. It features low pressure drop, and high efficiency, elasticity, power and capacity.

Description

Internally circulating cyclone separating structure and device
A kind of internally circulating cyclone separating structure and device relate to the gas solid separation field of mechanical technique.
At present, the cyclone separator of industrial use mainly contains reversible type and single flow two big classes.The gas import and export pipe of reversible type cyclone separator is close, device flow field complexity, though its structure repeatly through improving, energy dissipation is still bigger, and the arresting efficiency of fine solid particle below 10 microns is difficult to improve.The single flow cyclone separator has drawn back gas import and export pipe position, and dusty gas enters from installing an end, produces after rotation removes grit by guide vane, directly discharges from the device other end.Such structure helps eliminating many factors that is unfavorable for efficient and pressure drop in the reversible type cyclone separator, but the swirl strength that guide vane produces is lower, and the row of concentrated phase area gas dirt is from the secondary separation equipment that also needs to add.In order to address this problem, prior art is introduced the high-voltage secondary air-flow usually and is quickened the dusty gas rotation from the external world.Patent of invention (publication number: CN1075666A) by using the novel pipe rotational flow generator to replace common stator rotational flow generator, with separating property and the raising secondary gas flow utilization rate of improving device.But these technology all need dispose the secondary gas flow power set, and commercial Application is subjected to certain limitation.
The present invention is intended to provide a kind of cyclone separating structure and device that has the rotational flow field of regular reinforcement, just can reach efficient low-resistance without any need for optional equipment simultaneously.
To achieve these goals, helicoid tangential admission pipe is equipped with on the outer cylinder body top of cyclone separator of the present invention, and the bottom is connected with a control of dust cylindrical shell and dust flue arranged.The shaft core position of inner barrel is equipped with the interior circulation riser that the bottom is uncovered, seal on the top, the top side face evenly has tangential latticed wing outside, concentrated phase area gas is entered from the riser bottom, tangentially import the dust-contained airflow of managing inner rotary through riser top latticed wing, circulation is as strengthening the secondary wind that separates in device.The lower tube of riser is with bridging tube body outward, and the cylindrical shell perisporium also has tangential latticed wing and is uniformly distributed along the circumference, and opening is towards consistent with the air-flow direction of rotation.The bottom of bridging tube body connects the helicoid tangential direct air outlet pipe, stretches out from the outer cylinder body side.The inclination angle of helicoid tangential direct air outlet pipe is consistent with helicoid tangential admission pipe, and the two cooperation makes the rotational flow field of gas solid separation regular in order, to improve separative efficiency, reduces energy dissipation.
Because the present invention has broken through traditional reversible type isolating construction, and by circulation riser in being provided with, the rotational flow field reinforcement and the concentrated phase stream that have solved the single flow separation are effectively arranged from problem, so compared with prior art, can produce following four aspect good effects at least:
1) unfavorable phenomenons such as the big and dust escape of the disorder of reversible type cyclone separator flow field, energy dissipation can be fundamentally eliminated in the inward turning and the counter-rotating of cancellation air-flow, and the pressure loss is reduced, and separative efficiency improves.
2) bridging tube body being set shunts concentrated phase area gas and dilute-phase zone, neat phase area gas, can avoid the inner gas dirt of existing cyclone separator to mix disturbing and deposited grit to return to unfavorable phenomenon in the pure qi (oxygen) stream, the arresting efficiency of raising fine solid particle because of colliding bounce-back with wall.
3) riser is set and makes the body-internal-circulation of concentrated phase gas, as strengthening the secondary wind that separates, under the condition of secondary separation equipment or secondary power-equipment, improved the swirl strength of gas solid separation, solve concentrated phase stream row from problem, improved the commercial Application ability of single flow cyclone separator greatly.
4) the tangential import and export water conservancy diversion of double helix face gas is set, can makes rotational flow field regular in order, reduce the pressure loss, help Mathematical Modeling simultaneously and set up, carry out the performance prediction of commercial plant and amplify design.
Below in conjunction with Figure of description, further specific implementation of the present invention is elaborated.
Fig. 1 is internally circulating cyclone separating structure of the present invention and schematic representation of apparatus.
Fig. 2 is the A-A section plan of Fig. 1.
Fig. 3 is the B-B section plan of Fig. 1.
Outer cylinder body 7 is circular cylinder bodies of an isometrical or reducing.The helicoid water conservancy diversion cover plate of the top of cylindrical shell and helicoid tangential admission pipe 10 is vertical to be connected and to shut.The bottom of cylindrical shell is connected with control of dust cylindrical shell 2.
Control of dust cylindrical shell 2 is taper, and the bottom connects dust flue 1.
Helicoid tangential admission pipe 10 is formed by connecting by one section helicoid water conservancy diversion cover plate that is the rectangular inlet Guan Yuyi piece ring-type of certain helix angle, is positioned at the top of outer cylinder body 7.The two side walls of inlet tube is tangent with the top wall of outer cylinder body 7 and interior circulation riser 8 respectively.
Bridging tube body 6 is enclosed within the inside of outer cylinder body 7.The cylindrical shell wall is spaced apart the tangential latticed wing 5 of rectangle, and opening is uniformly distributed along the circumference towards consistent with the direction of rotation of air-flow.The cylindrical shell bottom is linear in the shape of a spiral, is connected and shuts with the helicoid water conservancy diversion cover plate of helicoid tangential direct air outlet pipe 3 is vertical.Spacing bar 4 is fixed between outer cylinder body 7 and the bridging tube body 6, plays spacing and supporting role.
Helicoid tangential direct air outlet pipe 3 is the rectangle outlet of certain helix angle by one section and the helicoid water conservancy diversion cover plate of a ring-type is formed by connecting.The two side walls of escape pipe is tangent with the bottom wall of bridging tube body 6 and interior circulation riser 8 respectively, stretches out from the side of outer cylinder body 7 bottoms.The helix angle of escape pipe 3 is consistent with air inlet pipe 10.
Interior circulation riser 8 is positioned at the shaft core position of outer cylinder body 7, and its top is one section garden shape straight tube, and shut with circular cover on the top.The wall of garden straight tube has several rectangular tangential latticed wings 9, is the outlet of interior recyclegas.The bottom of interior circulation riser 8 is vertical garden pipes that the smaller and bottom of one section diameter has a reamer shape air inlet, middle conical tube transition by a convergent.The opening of tangential latticed wing 9 is towards consistent with the direction of rotation of dust-contained airflow outside the pipe, and aperture position is pressed the helix angle of tangential admission pipe 10, starts from certain corner from the point of contact and is uniformly distributed along the circumference.
Therefore, working condition of the present invention is: after dust-contained airflow entered from helicoid tangential admission pipe 10, the interior circulating current that is promptly come out from the tangential latticed wing 9 of riser quickened, and descended along the rotation of the annular space space between outer cylinder body 7 and the interior circulation riser 8.To the wall of cylindrical shell 7 deposition, air-flow is divided into pressing close to the concentrated phase area of outer cylinder body 7 walls to grit under centrifugal action, near the neat phase area of interior circulation riser 8 walls with between the dilute-phase zone between the two.Descending with air-flow, neat phase area and dilute-phase zone gas enter bridging tube body 6, further remove the fine solid particle that on a small quantity has little time to separate from tangential latticed wing 5 because of sinking speed is little after, discharge from helicoid tangential direct air outlet pipe 3 as pure qi (oxygen); Concentrated phase area gas dirt then enters the depositing dust space of helicoid tangential direct air outlet pipe 3 belows by the annular space passage between bridging tube body 6 and the outer cylinder body 7, grit wherein comes together in cylindrical shell 2 bottoms and discharges from dust flue 1 because deceleration and inertial settling are immediately separated from gas; Circulation riser 8 rotation upwards turned back to the entrance space of dusty gas by the tangential latticed wing 9 on riser top in gas then entered, and restarted a complete separating cycle.
The present invention can use by monomer in industrial implementation, also can be used in combination by many bodies.

Claims (5)

1, a kind of internally circulating cyclone separating structure and device are equipped with helicoid tangential admission pipe (10) on the top of outer cylinder body (7), and the bottom connects control of dust cylindrical shell (2) and dust flue (1) is arranged, and lower side has the mouth of pipe of giving vent to anger, and it is characterized in that:
1) in the inner axial location of outer cylinder body (7) circulation riser (8) in is housed, seal on its top, top exports along the recyclegas that side face has at interval with tangential latticed wing (9), the opening of tangential latticed wing (9) is towards consistent with the direction of rotation of dust-contained airflow outside the pipe, and the bottom is uncovered to be the recyclegas import;
2) be with bridging tube body (6) outside the lower tube of interior circulation riser (9), cylindrical shell (6) wall also has tangential latticed wing (5), and opening is uniformly distributed along the circumference towards identical with the air-flow direction of rotation;
3) connect helicoid tangential direct air outlet pipe (3) in the bottom of bridging tube body (6), stretch out from the mouth of pipe of giving vent to anger of outer cylinder body (7) lower side, the helicoid tangential admission pipe that be equipped with on the helix angle of helicoid tangential direct air outlet pipe and outer cylinder body (7) top is close, hand of spiral unanimity.
2, internally circulating cyclone separating structure according to claim 1 and device, it is characterized in that described helicoid tangential admission pipe (10) forms by the helicoid water conservancy diversion cover plate that a rectangular tube is connected a ring-type with helicoid tangential direct air outlet pipe (3), the two side walls of air inlet pipe (10) is tangent with the top wall of outer cylinder body (7) and interior circulation riser (8) respectively, and the two side walls of escape pipe (3) is tangent with the bottom wall of bridging tube body (6) and interior circulation riser (8) respectively.
3, internally circulating cyclone separating structure according to claim 1 and device, it is characterized in that described interior circulation riser (8) epimere is that the top has the garden straight tube that seal cover board, perisporium have tangential latticed wing (9) at interval, hypomere is the garden straight tube that the bottom has reamer shape air inlet, and the stage casing is the taper garden pipe of a transition.
4, internally circulating cyclone separating structure according to claim 1 and device, it is characterized in that described bridging tube body (6) is one to be fixed on the inner garden straight barrel of outer cylinder body (7) by spacing bar (4), its bottom is linear in the shape of a spiral, is connected and seals with the looping snail radial facing fairing cap plate of helicoid tangential direct air outlet pipe (3) is vertical.
5, internally circulating cyclone separating structure according to claim 1 and device, it is characterized in that described outer cylinder body (7) is a circular cylinder body, its top is linear in the shape of a spiral, is connected and seals with the looping snail radial facing fairing cap plate of helicoid tangential admission pipe (10) is vertical.
CN97112547A 1997-07-22 1997-07-22 Internally circulating cyclone separating structure and appts. Expired - Fee Related CN1067919C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN97112547A CN1067919C (en) 1997-07-22 1997-07-22 Internally circulating cyclone separating structure and appts.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN97112547A CN1067919C (en) 1997-07-22 1997-07-22 Internally circulating cyclone separating structure and appts.

Publications (2)

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CN1173401A true CN1173401A (en) 1998-02-18
CN1067919C CN1067919C (en) 2001-07-04

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103041937A (en) * 2013-01-10 2013-04-17 王合 Underspin cyclone dust collector and flue gas atomization desulfuration equipment
CN103252294A (en) * 2013-05-17 2013-08-21 中国计量学院 Tri-combined type efficient lampblack purifying device and secondary cyclone separator with same
CN104084321A (en) * 2014-06-24 2014-10-08 中国神华能源股份有限公司 Cyclone dust extractor
CN108273637A (en) * 2018-02-09 2018-07-13 庞凯 A kind of gradient fractionation purification system of turbine classifier and silicon dioxide ultrafine powder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2165932Y (en) * 1993-06-25 1994-05-25 王怀彬 Low-resistance higt-efficient whirlwind separator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103041937A (en) * 2013-01-10 2013-04-17 王合 Underspin cyclone dust collector and flue gas atomization desulfuration equipment
CN103252294A (en) * 2013-05-17 2013-08-21 中国计量学院 Tri-combined type efficient lampblack purifying device and secondary cyclone separator with same
CN104084321A (en) * 2014-06-24 2014-10-08 中国神华能源股份有限公司 Cyclone dust extractor
CN108273637A (en) * 2018-02-09 2018-07-13 庞凯 A kind of gradient fractionation purification system of turbine classifier and silicon dioxide ultrafine powder

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C06 Publication
PB01 Publication
AR01 Abandonment of patent right to avoid double patenting

According to article 9 of the patent law and article 12 of the detailed rules for the implementation of the patent law: 97112547.3 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97218705.7 utility model patent to be given up, and in the 17 volume of the 27 issue of the new type of communique on the patent right to abandon the announcement.

C14 Grant of patent or utility model
GR01 Patent grant
AR01 Abandonment of patent right to avoid double patenting

According to article 9 of the patent law and article 12 of the detailed rules for the implementation of the patent law: 97112547.3 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97218705.7 utility model patent to be given up, and in the 17 volume of the 37 issue of the new type of communique on the patent right to abandon the announcement.

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee