CN206935077U - Denitration pipette tips - Google Patents

Denitration pipette tips Download PDF

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Publication number
CN206935077U
CN206935077U CN201720856572.9U CN201720856572U CN206935077U CN 206935077 U CN206935077 U CN 206935077U CN 201720856572 U CN201720856572 U CN 201720856572U CN 206935077 U CN206935077 U CN 206935077U
Authority
CN
China
Prior art keywords
outer cover
main body
connecting portion
denitration
ejection section
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
CN201720856572.9U
Other languages
Chinese (zh)
Inventor
龚在权
吴茂君
张建
潘江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GANGUE POWER PLANT OF SICHUAN CHUANMEI HUARONG ENERGY Co Ltd
Original Assignee
GANGUE POWER PLANT OF SICHUAN CHUANMEI HUARONG ENERGY Co Ltd
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
Application filed by GANGUE POWER PLANT OF SICHUAN CHUANMEI HUARONG ENERGY Co Ltd filed Critical GANGUE POWER PLANT OF SICHUAN CHUANMEI HUARONG ENERGY Co Ltd
Priority to CN201720856572.9U priority Critical patent/CN206935077U/en
Application granted granted Critical
Publication of CN206935077U publication Critical patent/CN206935077U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of denitration pipette tips, outer cover is hemispherical shell, a circle collar stop has been coaxially disposed on outer cover, one end of collar stop is connected to one with casing outer wall, the other end of collar stop is concordant with the horizontal plane where outer cover summit, and several equally distributed circular jets are provided with outer cover;Blender includes main body, connecting portion, ejection section, and main body is discoid, and several air-flow spray orifices are provided with main body;Connecting portion, ejection section are cylindric, connecting portion, ejection section are placed coaxially on two sides of main body respectively, the end face of connecting portion is recessed to form cavity to the direction of ejection section, screw thread is provided with the outer wall of connecting portion, several ammoniacal liquor spray orifices uniformly arranged are provided with the circumferencial direction of ejection section, ammoniacal liquor spray orifice connects cavity.The utility model overcomes Shortcomings in existing denitration pipette tips structure, and atomizing effect is good, denitration efficiency is high, service life length.

Description

Denitration pipette tips
Technical field
It the utility model is related to gas denitrifying technology field, and in particular to a kind of denitration pipette tips.
Background technology
Need to carry out denitration process to boiler smoke in coal-fired industry, to remove the nitrogen oxides contained in flue gas, avoid Atmosphere pollution.Conventional mode is to spray ammoniacal liquor using denitration spray gun, it is fully contacted with the nitrogen oxides in flue gas, instead Should, nitrogen and water are generated, nitrogen oxides in effluent is removed.Denitration spray gun is generally by denitration pipette tips, high pressure gas flow tube, ammonia Water pipe is formed, and ammonia water pipe is set in high pressure gas flow tube, and denitration pipette tips are connected with high pressure gas flow tube, the end thread of ammonia water pipe, Air-flow spray orifice and ammoniacal liquor spray orifice are provided with denitration pipette tips, ammoniacal liquor is broken up in the presence of high pressure draught, is atomized, then through denitration The spout on pipette tips top sprays.
Applicant is in practice, it has been found that problems be present in existing denitration pipette tips:1st, ammoniacal liquor spray orifice and air-flow spray orifice are put down Row is set, ammoniacal liquor and high pressure draught it is insufficient contact, mix uneven, ammoniacal liquor can not obtain enough kinetic energy, it is impossible to spray To effective conversion zone;Atomizing effect is poor, especially under the unstable situation of air pressure, ammoniacal liquor be not often atomized fully just from The spout on top oozes, and small with the contact area of flue gas, denitration efficiency is low;2nd, service life is short, and denitration pipette tips are arranged on boiler In horizontal flue, 900 DEG C of temperature in flue, and contain the faster particulate matter of a large amount of flow velocitys in runner, pipette tips are in high temperature and high speed It is easily damaged under the abrasion of particulate matter;3rd, the flat spout of one rectangle only is set on denitration pipette tips top, sprays covering for ammoniacal liquor Lid is limited in scope, and generally requires to set multiple pipette tips in flue, adds production and operation cost.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of atomizing effect is good, denitration efficiency is high, service life Long denitration pipette tips.
Technical scheme is used by the utility model solves its technical problem:Denitration pipette tips, including outer cover and blender, Outer cover is hemispherical shell, and a circle collar stop has been coaxially disposed on outer cover, and one end and the casing outer wall of collar stop are fixed Connect as one, the other end of collar stop is concordant with the horizontal plane where outer cover summit, and it is uniform that several are provided with outer cover The circular jet of distribution;Blender includes main body, connecting portion, ejection section, and main body is discoid, and several are provided with main body Air-flow spray orifice, several air-flow spray orifices are uniformly arranged around the center line of main body;Connecting portion, ejection section be it is cylindric, connecting portion, Ejection section is placed coaxially on two sides of main body respectively, and the end face of connecting portion is recessed to form sky to the direction of ejection section Chamber, screw thread is provided with the outer wall of connecting portion, several ammoniacal liquor spray orifices uniformly arranged are provided with the circumferencial direction of ejection section, Ammoniacal liquor spray orifice connects cavity.
Wherein, the quantity of jet is 6, and sphere of the jet along outer cover is radially arranged.
Wherein, the quantity of ammoniacal liquor spray orifice and air-flow spray orifice is 6, the center line of ammoniacal liquor spray orifice and correspondence position The vertical and intersectant centerline of one air-flow spray orifice.
Wherein, the side in main body where connecting portion is provided with annular boss.
Wherein, screw thread is provided with openend on outer cover inwall, screw thread is provided with the circumferential surface of main body.
The beneficial effects of the utility model are:Outer cover is hemispherical, and multiple jets are provided with sphere, ammoniacal liquor spray The wide coverage of injection;Collar stop is provided with outer cover, to have blocked swiftly flowing particulate matter at the top of outer cover, is reduced Abrasion at the top of outer cover, improves whole service life;The center line of ammoniacal liquor spray orifice and the central axis of air-flow spray orifice, ammoniacal liquor Fully contacted with pressure-air after the ejection of ammoniacal liquor spray orifice, gas-liquid carries out sufficient energy exchange, and ammoniacal liquor is broken up atomization and had Effective conversion zone, ammoniacal liquor and flue gas good mixing effect can be reached by preparing enough enough kinetic energy;The utility model overcomes existing Shortcomings in denitration pipette tips structure, atomizing effect is good, denitration efficiency is high, service life length.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of denitration pipette tips in the prior art;
Fig. 2 is the structural representation on denitration pipette tips top in the prior art;
Fig. 3 is diagrammatic cross-section of the present utility model;
Fig. 4 is the structural representation on the utility model outer cover top;
Fig. 5 is the schematic perspective view of the utility model outer cover;
Fig. 6 is the schematic perspective view of the utility model blender;
Fig. 7 is the front view of the utility model blender;
In figure mark for:Outer cover 1, collar stop 11, jet 12, blender 2, main body 21, connecting portion 22, ejection section 23rd, cavity 24, annular boss 25, air-flow spray orifice 211, ammoniacal liquor spray orifice 231, high pressure gas flow tube 3, ammonia water pipe 4.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 3 to Fig. 7, denitration pipette tips, including outer cover 1 and blender 2, outer cover 1 is hemispherical shell, on outer cover 1 A circle collar stop 11 is coaxially disposed, it will be appreciated by persons skilled in the art that denitration pipette tips are to be vertically installed at water In flat flue, the effect of collar stop 11 is to block swiftly flowing particulate matter for the top of outer cover 1;One end of collar stop 11 Be connected to one with the outer wall of outer cover 1, the other end of collar stop 11 it is concordant with the horizontal plane where the summit of outer cover 1, it is necessary to Illustrate, described horizontal plane refers to when connecting portion 22 is placed on the ground, through the summit of outer cover 1 and parallel to the ground Plane, the i.e. length of collar stop 11 are identical with the radius of outer cover 1, and such collar stop 11 can both play outside protective covers 1 and push up End is not worn, and the ammoniacal liquor after atomization will not be hindered to be sprayed from jet 12 again;Fig. 1, Fig. 2 show existing denitration pipette tips Structural representation, it is seen that outer cover top only has a flat spout, and ammonia water spray coverage is small, shown in Fig. 4, Fig. 5, this Shen Several equally distributed circular jets 12 please be provided with outer cover 1 in scheme, it is to be appreciated that ammonia water spray covers model Enclose wide;Blender 2 includes main body 21, connecting portion 22, ejection section 23, and main body 21 is discoid, and several are provided with main body 21 Air-flow spray orifice 211, several air-flow spray orifices 211 are uniformly arranged around the center line of main body 21, the center line of air-flow spray orifice 211 and master The centerline parallel of body 21;Connecting portion 22, ejection section 23 are cylindric, and connecting portion 22, ejection section 23 are coaxially disposed respectively On two sides of main body 21, the end face of connecting portion 22 is recessed to form cavity 24 to the direction of ejection section 23, connecting portion 22 Be provided with screw thread on outer wall, blender 2 be arranged on the end of ammonia water pipe 4 by connecting portion 22 during use, the end face of main body 21 with The end face of high pressure gas flow tube 3 is bonded, and several ammoniacal liquor spray orifices 231 uniformly arranged are provided with the circumferencial direction of ejection section 23, Ammoniacal liquor spray orifice 231 connects cavity 24, and cavity 24 connects ammonia water pipe 4, and air-flow spray orifice 211 connects high pressure gas flow tube 3, from the figure 3, it may be seen that The center line of ammoniacal liquor spray orifice 231 and the central axis of air-flow spray orifice 211.
Preferably, the quantity of jet 12 is 6, and sphere of the jet 12 along outer cover 1 is radially arranged.
Preferably, the quantity of ammoniacal liquor spray orifice 231 and air-flow spray orifice 211 is 6, the center line of an ammoniacal liquor spray orifice 231 With the vertical and intersectant centerline of an air-flow spray orifice 211 of correspondence position, it is to be understood that ammoniacal liquor sprays through ammoniacal liquor spray orifice 231 Go out and fully contacted with the pressure-air sprayed through air-flow spray orifice 211 afterwards, gas-liquid carries out sufficient energy exchange, and ammoniacal liquor is broken up mist Change, and possess enough kinetic energy to reach effective conversion zone.
Preferably, the side in main body 21 where connecting portion 22 is provided with annular boss 25, the diameter of annular boss 25 with The internal diameter adaptation of high pressure gas flow tube 3, annular boss 25 plays a part of preventing gas leakage, it is further preferred that also including air ring Piece, between blender 2 and high pressure gas flow tube 3, the internal diameter of annular gasket is adapted to annular gasket with the diameter of annular boss 25.
Preferably, screw thread is provided with openend on the inwall of outer cover 1, spiral shell is provided with the circumferential surface of main body 21 Line, outer cover 1 are threadedly coupled with main body 21.

Claims (5)

1. denitration pipette tips, including outer cover (1) and blender (2), it is characterised in that:Outer cover (1) is hemispherical shell, outer cover (1) On be coaxially disposed a circle collar stop (11), one end and outer cover (1) outer wall of collar stop (11) are connected to one, The other end of collar stop (11) is concordant with the horizontal plane where outer cover (1) summit, and several are provided with outer cover (1) and is uniformly divided The circular jet (12) of cloth;Blender (2) includes main body (21), connecting portion (22), ejection section (23), and main body (21) is disk Shape, several air-flow spray orifices (211) is provided with main body (21), center line of several air-flow spray orifices (211) around main body (21) Uniformly arrangement;Connecting portion (22), ejection section (23) are cylindric, and connecting portion (22), ejection section (23) are coaxially disposed respectively On two sides of main body (21), the end face of connecting portion (22) is recessed to form cavity (24) to the direction of ejection section (23), even Screw thread is provided with the outer wall of socket part (22), several ammoniacal liquor spray uniformly arranged is provided with the circumferencial direction of ejection section (23) Hole (231), ammoniacal liquor spray orifice (231) connect cavity (24).
2. denitration pipette tips according to claim 1, it is characterised in that:The quantity of jet (12) is 6, jet (12) Radially arranged along the sphere of outer cover (1).
3. denitration pipette tips according to claim 1, it is characterised in that:The number of ammoniacal liquor spray orifice (231) and air-flow spray orifice (211) Amount is 6, the central axis of the center line of ammoniacal liquor spray orifice (231) and an air-flow spray orifice (211) of correspondence position It is intersecting.
4. denitration pipette tips according to claim 1, it is characterised in that:Side in main body (21) where connecting portion (22) is set It is equipped with annular boss (25).
5. denitration pipette tips according to claim 1, it is characterised in that:It is provided with outer cover (1) inwall at openend Screw thread, screw thread is provided with the circumferential surface of main body (21).
CN201720856572.9U 2017-07-14 2017-07-14 Denitration pipette tips Expired - Fee Related CN206935077U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720856572.9U CN206935077U (en) 2017-07-14 2017-07-14 Denitration pipette tips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720856572.9U CN206935077U (en) 2017-07-14 2017-07-14 Denitration pipette tips

Publications (1)

Publication Number Publication Date
CN206935077U true CN206935077U (en) 2018-01-30

Family

ID=61368719

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720856572.9U Expired - Fee Related CN206935077U (en) 2017-07-14 2017-07-14 Denitration pipette tips

Country Status (1)

Country Link
CN (1) CN206935077U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108993143A (en) * 2018-08-29 2018-12-14 哈尔滨锅炉厂有限责任公司 Accumulatingdust multi-direction type ammonia injection apparatus for SCR denitration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108993143A (en) * 2018-08-29 2018-12-14 哈尔滨锅炉厂有限责任公司 Accumulatingdust multi-direction type ammonia injection apparatus for SCR denitration

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180130

Termination date: 20180714