CN207153991U - Embedded gas helps shower nozzle - Google Patents

Embedded gas helps shower nozzle Download PDF

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Publication number
CN207153991U
CN207153991U CN201720956132.0U CN201720956132U CN207153991U CN 207153991 U CN207153991 U CN 207153991U CN 201720956132 U CN201720956132 U CN 201720956132U CN 207153991 U CN207153991 U CN 207153991U
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CN
China
Prior art keywords
housing
pipeline section
shower nozzle
air outlet
inner chamber
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.)
Withdrawn - After Issue
Application number
CN201720956132.0U
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Chinese (zh)
Inventor
张玲
薛新宇
金永奎
陈晨
杨风波
孙竹
周良富
秦维彩
孙涛
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.)
Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Original Assignee
Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Priority to CN201720956132.0U priority Critical patent/CN207153991U/en
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Withdrawn - After Issue legal-status Critical Current
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Abstract

A kind of embedded gas helps shower nozzle, housing and internal sprayer body including outside, the air inlet of housing rear end is connected with centrifugal blower, the inlet of sprayer body is connected with liquid pump, the front portion of housing includes the first inner chamber pipeline section of cylinder, is connected between first inner chamber pipeline section and housing air outlet by the first tapered conical internal cavity pipeline section;The front portion of the sprayer body is provided with sprinkler cap, the gas passage of annular is formed between housing cavity wall, the sprinkler cap is made up of the tapered cap body portion of front portion and the cylindrical cap body portion at rear portion, the outer wall of tapered cap body portion is consistent with the inwall incline direction of the first conical internal cavity pipeline section, the external diameter T of the cylindrical cap body portion is more than the diameter L at the most narrow place of the air outlet, and difference is in more than 2mm.The utility model can realize that the peripheral wind speed of air outlet is bigger, inside enclose that wind speed is smaller, and the wind direction of air outlet is formed certain within angle, this can strengthen wind field to the parcel of droplet, transport, and then improve shower nozzle to target.

Description

Embedded gas helps shower nozzle
Technical field
Plant protection technology field is the utility model is related to, specially a kind of gas helps shower nozzle.
Background technology
Currently, low capacity air-assisted sprayer is used widely in being produced in China orchard, the spraying of orchard wind spraying aid type Machine is a kind of large-scale equipment suitable for the dispenser of larger area orchard, and it has, and atomization quality is good, medication saves, with water is few, production The advantages that efficiency high, it is not only to make medical liquid atomizing by the pressure of liquid pump, but relies on blower fan to produce powerful air-flow by droplet Blowing to each position of fruit tree, the high velocity air of blower fan contributes to the dense fruit tree branches and leaves of penetration of droplets, and well promotes blade to turn over It is dynamic, improve decoction adhesive rate and the branch or damage fruit of fruit tree will not be damaged.But in view of existing air-assisted sprayer is universal Wind field and spray field matching are bad during in the presence of spraying so that and a large amount of pesticide droplets send to transport and are dropped in halfway in water and soil in wind, More serious water and soil pollution is caused, therefore improves the pesticide efficacy of orchard air-assisted sprayer, reduce non-target area Droplet sedimentation is the current main direction of studying of air-assisted spraying technology.Publication No. CN104646204B patent application discloses A kind of double wind send orchard electrostatic sprayer, and it improves the effectively heavy of droplet by two layers inside and outside being set in nozzle periphery annular air curtain Product rate, but the problem of droplet is dripped during transport is still suffered from practice, and energy resource consumption is huge.
Utility model content
The problem of existing for prior art, technical purpose of the present utility model, which is to provide one kind, can further improve wind The embedded gas for effective deposition of spraying is sent to help shower nozzle, its technical scheme is:
A kind of embedded gas helps shower nozzle, including outside housing and internal sprayer body, and the sprayer body is with concentric Mode is arranged in housing cavity, and the rear end of housing is provided with air inlet, and the air inlet is connected by pipeline with centrifugal blower, spray Head body is provided with inlet, and the inlet is connected by pipeline with liquid pump, it is characterised in that:
The front end of the housing is provided with the air outlet of flaring, and the front portion of housing includes the first inner chamber pipeline section of cylinder, institute State and be connected between first inner chamber pipeline section and air outlet by the first tapered conical internal cavity pipeline section;
The front portion of the sprayer body is provided with sprinkler cap, and sprinkler cap is in the forward lumen of housing, with housing cavity wall it Between form annular passage;The sprinkler cap is made up of the tapered cap body portion of front portion and the cylindrical cap body portion at rear portion, described The outer wall of tapered cap body portion is consistent with the inwall incline direction of the first conical internal cavity pipeline section, make air channel therebetween by Tapered small, the external diameter T of the cylindrical cap body portion is more than the diameter L at the most narrow place of the air outlet, and difference is in more than 2mm.
On the basis of such scheme, further improve or preferable scheme also includes:
Preferably, the air channel angle a on the inside of the air outlet, the i.e. cone angle of the first conical internal cavity pipeline section are set to 90 degree; The flaring angle beta of air outlet, i.e. air outlet wall and the angle of its axis are set to 10 degree.
The rear portion of the housing includes the second inner chamber pipeline section of cylinder, in the front end and first of the second inner chamber pipeline section Lumen section is connected, and rear end is connected with the second conical internal cavity pipeline section of flaring, and the second conical internal cavity pipeline section is connected with air inlet.
The rear end of the sprayer body is set to taper, the inwall incline direction one of its outer wall and the second conical internal cavity pipeline section Cause.
The internal structure of shower nozzle, different best match sides be present for the centrifugal blower and liquid pump of different operating parameter Formula, in other words to the matching of wind field and spray field, therefore between the front portion of the housing and rear portion in a manner of sleeve, with reference to screw thread Structure connects, and can adjust housing front and rear portions relative distance M, sprayer body is motionless with respect to rear during regulation, you can real The now matching regulation to shower nozzle wind field and spray field.
Sprayer body can be fixed on the tube wall of rear by feed tube.The feed tube of connection sprayer body is arranged on shower nozzle The lower section of body, this prevents droplet due to Action of Gravity Field and falling within ground too early has for extending wind field to the transport time of droplet Positive role.
Beneficial effect:
Compared with prior art, the utility model shower nozzle can realize that the peripheral wind speed of air outlet is bigger, and it is smaller inside to enclose wind speed, And the wind direction of air outlet is formed certain within angle, this can strengthen wind field to the parcel of droplet, transport, significantly improve shower nozzle To target, effectively reduce the loss during droplet transports, that is, reduce the ineffective deposition rate of droplet, compared with double air-assisted sprayers, The loss to the energy can be also reduced, effectively improves the service efficiency of blower fan.And the utility model is improved by further structure, Make nozzle housing structure adjustable, i.e., operating personnel can be according to specific use environment and operating condition to enclosure interior gas stream The shape in road makes fine setting with size, the match condition of wind field and spray field is reached optimal.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model shower nozzle;
When Fig. 2 is that shower nozzle works, the at a time wind speed profile cloud atlas of section;
When Fig. 3 is that shower nozzle works, the at a time wind speed profile cloud atlas in certain space.
Embodiment
In order to further elucidate the technical solution of the utility model and technical principle, below in conjunction with the accompanying drawings with specific embodiment The utility model is described further.
A kind of embedded gas helps shower nozzle, including outside housing and internal sprayer body.The sprayer body is with concentric Mode is arranged in housing cavity, and its spout also is located at enclosure interior, and the rear end of housing is provided with air inlet, and the air inlet passes through Pipeline is connected with blower fan, and the rear portion of sprayer body is provided with inlet, and the inlet is connected by pipeline with liquid pump, as shown in Figure 1.
Connected between the front portion 101 and rear portion 102 of the housing by the way of sleeve, and pass through helicitic texture dense block Tightly, i.e., housing front and rear portions relative distance can adjust.The front end of housing is provided with the air outlet 103 of flaring, and the front portion of housing is provided with circle The first inner chamber pipeline section of cylindricality, pass through the first tapered conical internal cavity pipeline section between the first inner chamber pipeline section and air outlet 103 Linking.The rear portion of housing is provided with the second inner chamber pipeline section of cylinder, front end and the first inner chamber pipeline section of the second inner chamber pipeline section Linking, rear end are connected with the second conical internal cavity pipeline section of flaring, and the second conical internal cavity pipeline section is connected with air inlet.
The front portion of the sprayer body is provided with sprinkler cap 201, and sprinkler cap 201 is in the forward lumen of housing, in housing The air channel of annular is formed between cavity wall.The sprinkler cap 201 is by the tapered cap body portion positioned at front portion and the cylinder positioned at rear portion Shape cap body part integrally connected is formed, and the external diameter of cylindrical cap body portion is more than the diameter dimension at sprayer body rear portion.The taper The outer wall of cap body part is consistent with the inwall incline direction of the first conical internal cavity pipeline section(It is parallel in other words), make therebetween Air channel cross-sectional area be gradually reduced.The external diameter T of the cylindrical cap body portion is more than the diameter L at the most narrow place of the air outlet, The two difference is in more than 2mm.The rear end of sprayer body is also set to taper, and the inwall of its outer wall and the second conical internal cavity pipeline section inclines Tilted direction is consistent.
If shower nozzle is under normal condition, between cylindrical cap body portion and first inner chamber pipeline section inwall, tapered cap body portion The width in air channel is equal between the first conical internal cavity pipeline section, during actual use, can make housing by screwing housing front portion 101 Front portion 101 is moved axially back and forth along it, that is, adjusts M values, changes air channel between tapered cap body portion and the first conical internal cavity pipeline section Shape and size, reach regulation air outlet wind speed purpose.As shown in Fig. 2 when shower nozzle wind field and preferable mist flow field matching, Periphery high speed, the interior wind field distribution for enclosing low speed, and about 3-5 within angle are produced at shower nozzle air outlet, makes outlet spray By more preferable " wrapping up in " in the air-flow soft air duct with certain static energy, being delivered to outside larger distance can just spread, and subtract significantly Lack garden cone agricultural chemicals spray and diffused to ground on hand, produce ineffective deposition loss and the situation of pollution by pesticides, using up agricultural chemicals can The deposition of energy is a long way off on the object of fruit tree.
In the present embodiment, if the inner side air channel angle of housing air outlet 103 is a, i.e. the cone angle of the first conical internal cavity pipeline section; The flaring angle for setting out air port is β, i.e. the angle of the wall of air outlet 103 and its axis;If the phase of housing front portion 101 and rear portion 102 The M that adjusts the distance be the annular passage flex point to the first conical internal cavity pipeline section inwall axial air line distance.Air inlet is a diameter of 26mm, the meter per second of wind speed 45, the pa of import blast 5000, a diameter of 20mm in the outer face of air outlet 103, M take optimum value 5.4mm, when Interior air channel angle a is 90, when flaring angle beta is 10, high velocity air outer shroud wind speed V0More than 95 meter per seconds, internal minimum air-flow wind Fast about 36 meter per seconds, the meter per second of air outlet maximum mean wind speed 67, can form to the garden cone sprays of 3 bars of operating pressures about 2 meters has " the constraint soft air duct " of effect, as shown in Figure 3.When spray operating pressure increases, M values are can adjust to increase " the constraint to spray Power ", avoid the nearby sedimentation of spray.Air outlet, which is designed as flaring angle, can effectively improve mean wind speed at spray outlet, and β is The mean wind speed exported at 10 degree or so is maximum.
In the present embodiment, sprayer body is fixed on the tube wall of rear by feed tube 202.Because feed tube 202 accounts for According to duct space, make to become apparent from there is provided the extrusion effect that the side air of feed tube 202 is subject to, the wind speed of exit end face is more Greatly, make enclosure interior produce asymmetry wind field, and the asymmetry of wind field to droplet transport will produce it is more obvious Influence, in consideration of it, when carrying out spraying operation, feed tube 202 can be placed on to downside, this is transported for extending wind field to droplet Time, prevent droplet due to the effect of gravity and fall within ground too early, improve droplet transport distance, increase deposition has positive work With.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also Various changes and modifications are had, the utility model requires protection scope is by appended claims, specification and its equivalent Define.

Claims (7)

1. a kind of embedded gas helps shower nozzle, including outside housing and internal sprayer body, the sprayer body is with concentric side Formula is arranged in housing cavity, and the rear end of housing is provided with air inlet, and the air inlet is connected by pipeline with centrifugal blower, shower nozzle Body is provided with inlet, and the inlet is connected by pipeline with liquid pump, it is characterised in that:
The front end of the housing is provided with the air outlet of flaring, and the front portion of housing includes the first inner chamber pipeline section of cylinder, and described the It is connected between one inner chamber pipeline section and air outlet by the first tapered conical internal cavity pipeline section;
The front portion of the sprayer body is provided with sprinkler cap, and sprinkler cap is in the forward lumen of housing, the shape between housing cavity wall Circularize air channel;The sprinkler cap is made up of the tapered cap body portion of front portion and the cylindrical cap body portion at rear portion, the taper The outer wall of cap body part is consistent with the inwall incline direction of the first conical internal cavity pipeline section, air channel therebetween is gradually contracted Small, the external diameter T of the cylindrical cap body portion is more than the diameter L at the most narrow place of the air outlet, and difference is in more than 2mm.
2. a kind of embedded gas according to claim 1 helps shower nozzle, it is characterised in that the wind on the inside of the housing air outlet Road angle a, the i.e. cone angle of the first conical internal cavity pipeline section are 90 degree;The flaring angle beta of air outlet, i.e. air outlet wall and its axis Angle is 10 degree.
3. a kind of embedded gas according to claim 1 helps shower nozzle, it is characterised in that the rear portion of housing includes cylinder Second inner chamber pipeline section, the front end of the second inner chamber pipeline section are connected with first inner chamber pipeline section, in the second taper of rear end and flaring Lumen section is connected, and the second conical internal cavity pipeline section is connected with air inlet.
4. a kind of embedded gas according to claim 3 helps shower nozzle, it is characterised in that the rear end of the sprayer body is set to bore Shape, its outer wall are consistent with the inwall incline direction of the second conical internal cavity pipeline section.
5. a kind of embedded gas according to any one of claim 1-4 helps shower nozzle, it is characterised in that before the housing Between portion and rear portion in a manner of sleeve, connected with reference to helicitic texture, can adjust housing front and rear portions relative distance M, and adjusted During, sprayer body is motionless with respect to rear.
6. a kind of embedded gas according to claim 5 helps shower nozzle, it is characterised in that the sprayer body is consolidated by feed tube It is scheduled on the tube wall of rear.
7. a kind of embedded gas according to claim 6 helps shower nozzle, it is characterised in that the feed tube is arranged on sprayer body Lower section.
CN201720956132.0U 2017-08-02 2017-08-02 Embedded gas helps shower nozzle Withdrawn - After Issue CN207153991U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720956132.0U CN207153991U (en) 2017-08-02 2017-08-02 Embedded gas helps shower nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720956132.0U CN207153991U (en) 2017-08-02 2017-08-02 Embedded gas helps shower nozzle

Publications (1)

Publication Number Publication Date
CN207153991U true CN207153991U (en) 2018-03-30

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Application Number Title Priority Date Filing Date
CN201720956132.0U Withdrawn - After Issue CN207153991U (en) 2017-08-02 2017-08-02 Embedded gas helps shower nozzle

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107442311A (en) * 2017-08-02 2017-12-08 农业部南京农业机械化研究所 Embedded gas helps shower nozzle
CN109092915A (en) * 2018-08-31 2018-12-28 鞍钢重型机械有限责任公司 A kind of asymmetric deformed steel water mist cooling apparatus and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107442311A (en) * 2017-08-02 2017-12-08 农业部南京农业机械化研究所 Embedded gas helps shower nozzle
CN107442311B (en) * 2017-08-02 2023-01-31 农业部南京农业机械化研究所 Embedded gas-assisted spray head
CN109092915A (en) * 2018-08-31 2018-12-28 鞍钢重型机械有限责任公司 A kind of asymmetric deformed steel water mist cooling apparatus and method
CN109092915B (en) * 2018-08-31 2024-05-10 鞍钢重型机械有限责任公司 Asymmetric deformed steel water mist cooling device and method

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Granted publication date: 20180330

Effective date of abandoning: 20230131

AV01 Patent right actively abandoned

Granted publication date: 20180330

Effective date of abandoning: 20230131