CN1981940A - Nozzle - Google Patents
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- CN1981940A CN1981940A CN 200510111469 CN200510111469A CN1981940A CN 1981940 A CN1981940 A CN 1981940A CN 200510111469 CN200510111469 CN 200510111469 CN 200510111469 A CN200510111469 A CN 200510111469A CN 1981940 A CN1981940 A CN 1981940A
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- nozzle
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- pipe
- spray
- jet expansion
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Abstract
A hollow nozzle with high dispersity and density of sprayed liquid in low-pressure condition and no blocking caused by high-viscosity liquid features that its inlet tube and outlet tube are cylindrical and perpendicular to each other, and have conic internal channel.
Description
Technical field
The present invention relates to a kind of liquid spraying nozzle.
Background technology
Nozzle is a kind of equipment that is used for dispersing liquid or gas, and range of application is extremely extensive, in many fields such as absorption, washing, paint spraying, cooling, burnings application is arranged all.The design quality of nozzle and gas or the decentralization of liquid and the operational efficiency of above-mentioned each application system have direct relation.Nozzle is worked under different spray conditions usually, therefore, has more than a kind of nozzle and satisfies the spray requirement.For example, nozzle both can disperse the fluid under the general condition, also can be used for the fluid that sprays high viscosity or contain solid impurity.Simultaneously, there is not which kind of single nozzle to meet all spray requirements.
The kind of nozzle is a lot, divides according to the power that forms the spray field, and nozzle mainly contains two kinds: rotarytype injector and impact type nozzle.The former is rotated by the fluid that enters nozzle interior along tangent line, produces centrifugal force, thereby forms the spray field; The latter forms the spray field by fluid to the bump of barrier or the mutual collision of two fluid streams.Dispersion characteristics according to jet expansion spray liquid are divided, and mainly free awl (hollow) spray spout of traditional nozzle, completely bore spray spout, efflux of solids spray spout, plane spray spout, meticulous spray spout and atomizer etc.The outlet spray liquid of empty awl nozzle (being nozzle) is a hollow cone, is an annular on the spray tangent plane.The spray field of this mode is formed by the import tangent line along nozzle interior rotation cavity usually, belongs to rotarytype injector.These rolling tangentials make liquid form rotation in nozzle interior, form the hollow cone shape by the liquid that rotates.The outlet spray liquid of completely boring nozzle can be that circular, square or oval and whole tangent plane is full of by spray liquid fully on tangent plane.The spray field of this mode then forms controllable turbulent flow by the blade of nozzle interior to outlet liquid, thereby completely bores spray liquid field going out interruption-forming.Other several spray modes all have the characteristics of oneself, thereby form different spray fields.
Select the decisive factor of nozzle a lot, mainly contain the rerum natura of fluid pressure, fluid flow, fluid itself, the sprinkle density of requirement, decentralization, spray angle and the spray height etc. of fluid.Make the nozzle operate as normal or obtain a good decentralization and sprinkle density, must guarantee that nozzle entrance has certain pressure.In addition, nozzle flow is high more, might obtain a good decentralization and sprinkle density more.In that sprinkle density or fluid decentralization are required be not under the extra high situation, industrial common employing be nozzle.With respect to the nozzle of other type, nozzle still can move when spray contains the fluid of the fluid of dirty thing or high viscosity and high polymerization reliably.
(third edition down, P4-175) has been introduced a kind of very representational traditional nozzle to document " chemical process design manual ".This type of nozzle requires to have at least the spray pressure of 0.2MPa, and different import and export sizes can have different spray flows, decentralization and sprinkle density etc.Liquid enters nozzle interior rotation cavity from nozzle entrance along tangent line, rotatablely move as tangent line in the rotation cavity.But connecting line and nozzle entrance do not have buffering, are direct butt joint.The rotation cavity and the jet expansion of nozzle do not have buffering yet, directly butt joint, and the liquid that rotatablely moves directly sprays outlet.These non-cushioned places cause the unexpected variation of flow channel for liquids, have increased pressure and have fallen; Simultaneously, cause the backflow of liquid, increased liquid residence time, improved the probability of solid impurity, high viscosity or high polymeric liquid plug nozzle.Be subjected to the influence of its structural design, traditional nozzle generally all has following shortcoming: require spray pressure height; The spray droplet diameter is influenced greatly by fluid pressure; Very easily by high viscosity, high polymerization or contain dirty thing liquid and stop up; In addition, because nozzle is a rotarytype injector, need produce centrifugal force formation spray field in the rotation of nozzle interior by liquid, broken by the liquid in rotation motion easily in the nozzle top.Therefore, hollow spray spout is to the requirement height of material.
Summary of the invention
Technical problem to be solved by this invention be overcome traditional liquid spraying nozzle spray under the low pressure condition that the decentralization of liquid is bad, sprinkle density is not high, easily by the shortcoming that liquid stops up and nozzle easily breaks of high viscosity or high polymerization, a kind of new liquid nozzle is provided.Decentralization and sprinkle density that this nozzle has spray liquid under the low pressure condition are still very high; The liquid that spray contains pressed powder, high viscosity and high polymerization still can stably move, and is difficult for blocked; And under big flow and high-pressure situations the also characteristics of cracky not.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of nozzle, comprise nozzle entrance pipe (1), cavity (2) and jet expansion pipe (3) successively, wherein nozzle entrance pipe (1) and jet expansion pipe (3) all are cylindric, and vertical mutually; Be coniform in the nozzle entrance pipe, the inlet dimension D
1With outlet size d
1And pipe range h
1Ratio be D
1: d
1: h
1=1: 0.2～1: 0.5～1; Be coniform in the jet expansion pipe, the inlet dimension D
2Equal cavity diameter, the inlet dimension D
2With outlet size d
2And pipe range h
2Ratio be D
2: d
2: h
2=1: 0.125～1: 0.1～0.5; Jet expansion pipe outlet size d
2With nozzle entrance pipe outlet size d
1Ratio be d
2: d
1=0.3～1: 1.
In the technique scheme, nozzle entrance tube inlet dimension D
1With outlet size d
1And pipe range h
1The ratio preferable range be D
1: d
1: h
1=1: 0.3～0.5: 0.5～0.8; Jet expansion tube inlet dimension D
2With outlet size d
2And pipe range h
2The ratio preferable range be D
2: d
2: h
2=1: 0.2～0.5: 0.3～0.5; Jet expansion pipe outlet size d
2With nozzle entrance pipe outlet size d
1The ratio preferable range be d
2: d
1=0.5～0.8: 1.
Pipe inside in nozzle of the present invention gateway all be conical, avoided liquid dwindling suddenly and amplify the pressure loss that is caused owing to passage; Simultaneously, the change in flow of having avoided liquid to cause owing to the unexpected variation of passage at the entrance and exit place, reduced backflow and the holdup time of liquid in these places, thereby reach the minimizing solid impurity, the liquid that shortens high viscosity or high polymerization reduces the blocked chance of nozzle in the time of staying of nozzle entrance place, nozzle interior and nozzle exit.Diminishing jet expansion tubular construction has been avoided owing to dwindling suddenly of exit passageway destroyed the rotating field that liquid forms in nozzle interior.Therefore, nozzle also can form the spray field of high degree of dispersion under the low pressure condition, and liquid distribution is even, and gas-liquid mass transfer and heat transfer efficiency improve, thereby have also improved device efficiency.Commercial plant is used proof: it is about 33% that nozzle of the present invention can make the required spray pressure of nozzle reduce, and nozzle improves to surpass 250% running time, and it is about 300% that the liquid dispersion degree can improve, and obtained better technical effect.
Description of drawings
Fig. 1 is that (third edition is descended the profile of nozzle P4-175) to document " chemical process design manual ".
Fig. 2 is that (third edition is descended the sectional view of nozzle P4-175) to document " chemical process design manual ".
Fig. 3 is the profile of nozzle of the present invention.
Fig. 4 is the sectional view of nozzle of the present invention.
Among Fig. 1, Fig. 2, Fig. 3 and Fig. 4,1 is the nozzle entrance pipe, and 2 is nozzle interior rotation cavity, and 3 is the jet expansion pipe, and 4 are hollow cone spray field.D
1Be nozzle entrance tube inlet size, d
1Be nozzle entrance pipe outlet size, D
2Be jet expansion tube inlet size, d
2Be jet expansion pipe outlet size, h
1Be nozzle entrance pipe pipe range, h
2Be jet expansion pipe pipe range.
Among Fig. 3, liquid enters nozzle interior through inlet tube from the coniform entrance of nozzle and revolves under the conveying of the power-equipments such as pump Turn to cavity, it is just in time tangent with nozzle rotation cavity that liquid enters the runner that rotates cavity. Under the effect of rotary-cut power, liquid exists Rotate in the nozzle rotation cavity. Liquid is rotating from the conical nozzle outlet and is spraying, and produces open circles taper spray field.
The invention will be further elaborated below by embodiment.
The specific embodiment
[comparative example 1]
With sewage chilling high-temperature reactor exit gas, the traffic requirement of each nozzle is 2.83 meters
3/ hour, sewage viscosity 0.6cP, 1100 kilograms/meter of density
3Adopt Fig. 1 document " chemical process design manual " (third edition, down, P4-175) designed nozzle, required spray pressure＞0.2MPa.Commercial Application proves: under this feed conditions, nozzle running time is 6 months, and liquid-drop diameter is 1.0～3.0 millimeters, and it is 209 meters that reactor outlet gas reaches the needed circulating sewage amount of requirement temperature
3/ hour.
[comparative example 2]
With sewage chilling high-temperature reactor exit gas, the traffic requirement of each nozzle is 2.83 meters
3/ hour, sewage viscosity 0.68cP, 1315 kilograms/meter of density
3Adopt Fig. 1 document " chemical process design manual " (third edition, down, P4-175) designed nozzle, required spray pressure is 0.27～0.29MPa.Commercial Application proves: under this feed conditions, nozzle running time is 5 months, and liquid-drop diameter is 2.0～5.0 millimeters, and it is 226 meters that reactor outlet gas reaches the needed circulating sewage amount of requirement temperature
3/ hour.
[embodiment 1]
With sewage chilling high-temperature reactor exit gas, the traffic requirement of each nozzle is 2.83 meters
3/ hour, sewage viscosity 0.6cP, 1100 kilograms/meter of density
3Adopt the designed nozzle of the present invention, required spray pressure is 0.1～0.12MPa.D
1∶d
1∶h
1＝1∶0.5∶0.6，D
2∶d
2∶h
2＝1∶0.3∶0.2，d
2/d
1＝0.5。Commercial Application proves: under this feed conditions, nozzle running time is 15 months, and liquid-drop diameter is 0.3～1.0 millimeter, and it is 132 meters that reactor outlet gas reaches the needed circulating sewage amount of requirement temperature
3/ hour.
[embodiment 2]
With sewage chilling high-temperature reactor exit gas, the traffic requirement of each nozzle is 2.83 meters
3/ hour, sewage viscosity 0.68cP, 1115 kilograms/meter of density
3Adopt the designed nozzle of the present invention, required spray pressure is 0.11～0.13MPa.D
1∶d
1∶h
1＝1∶0.2∶1，D
2∶d
2∶h
2＝1∶0.125∶0.5，d
2/d
1＝0.9。Commercial Application proves: under this feed conditions, nozzle running time is 12 months, and liquid-drop diameter is 0.5～1.5 millimeter, and it is 136 meters that reactor outlet gas reaches the needed circulating sewage amount of requirement temperature
3/ hour.
[embodiment 3]
With sewage chilling high-temperature reactor exit gas, the traffic requirement of each nozzle is 2.83 meters
3/ hour, sewage viscosity 0.88cP, 1315 kilograms/meter of density
3Adopt the designed nozzle of the present invention, required spray pressure is 0.12～0.15MPa, D
1: d
1: h
1=1: 0.3: 0.75, D
2: d
2: h
2=1: 0.2: 0.35, d
2/ d
1=0.65.Commercial Application proves: under this feed conditions, nozzle running time is 15 months, and liquid-drop diameter is 0.5～1.0 millimeter, and it is 130 meters that reactor outlet gas reaches the needed circulating sewage amount of requirement temperature
3/ hour.
Claims (2)
1, a kind of nozzle comprises nozzle entrance pipe (1), cavity (2) and jet expansion pipe (3) successively, and wherein nozzle entrance pipe (1) and jet expansion pipe (3) all are cylindric, and vertical mutually; Be coniform in the nozzle entrance pipe, the inlet dimension D
1With outlet size d
1And pipe range h
1Ratio be D
1: d
1: h
1=1: 0.2～1: 0.5～1; Be coniform in the jet expansion pipe, the inlet dimension D
2Equal cavity diameter, the inlet dimension D
2With outlet size d
2And pipe range h
2Ratio be D
2: d
2: h
2=1: 0.125～1: 0.1～0.5; Jet expansion pipe outlet size d
2With nozzle entrance pipe outlet size d
1Ratio be d
2: d
1=0.3～1: 1.
2,, it is characterized in that nozzle entrance tube inlet dimension D according to the described nozzle of claim 1
1With outlet size d
1And pipe range h
1Ratio be D
1: d
1: h
1=1: 0.3～0.5: 0.5～0.8; Jet expansion tube inlet dimension D
2With outlet size d
2And pipe range h
2Ratio be D
2: d
2: h
2=1: 0.2～0.5: 0.3～0.5; Jet expansion pipe outlet size d
2With nozzle entrance pipe outlet size d
1Ratio be d
2: d
1=0.5～0.8: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101114693A CN100408197C (en) | 2005-12-14 | 2005-12-14 | Nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101114693A CN100408197C (en) | 2005-12-14 | 2005-12-14 | Nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1981940A true CN1981940A (en) | 2007-06-20 |
| CN100408197C CN100408197C (en) | 2008-08-06 |
Family
ID=38164951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101114693A Active CN100408197C (en) | 2005-12-14 | 2005-12-14 | Nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100408197C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790682A (en) * | 2016-09-22 | 2019-05-21 | 福伊特专利有限公司 | For lubricating the lubricating arrangement for tightening object |
| CN110421008A (en) * | 2019-09-10 | 2019-11-08 | 新疆八一钢铁股份有限公司 | A kind of Bar Wire Product roll cooling water mouth |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11670443B2 (en) * | 2019-11-18 | 2023-06-06 | Ford Global Technologies, Llc | Liquid cooled inductor via nozzle spray |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5575423A (en) * | 1994-09-30 | 1996-11-19 | Rockwell International Corporation | Tube nozzle having thermal transient reduction |
| JP3746248B2 (en) * | 2002-05-23 | 2006-02-15 | 株式会社東芝 | Ultrasonic cleaning nozzle, ultrasonic cleaning device and semiconductor device |
-
2005
- 2005-12-14 CN CNB2005101114693A patent/CN100408197C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790682A (en) * | 2016-09-22 | 2019-05-21 | 福伊特专利有限公司 | For lubricating the lubricating arrangement for tightening object |
| CN110421008A (en) * | 2019-09-10 | 2019-11-08 | 新疆八一钢铁股份有限公司 | A kind of Bar Wire Product roll cooling water mouth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100408197C (en) | 2008-08-06 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |