CN1204747A - Oil-return type mechanical atomization spray nozzle - Google Patents
Oil-return type mechanical atomization spray nozzle Download PDFInfo
- Publication number
- CN1204747A CN1204747A CN 98115869 CN98115869A CN1204747A CN 1204747 A CN1204747 A CN 1204747A CN 98115869 CN98115869 CN 98115869 CN 98115869 A CN98115869 A CN 98115869A CN 1204747 A CN1204747 A CN 1204747A
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- nozzle
- hole
- oil
- nozzle body
- oil return
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- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
An oil-return type mechanical atomizing nozzle is composed of press cover, nozzle body and nozzle seat. The shoulder on the left side of nozzle seat is matched with the internal cylindrical cyclone hole on the right side of nozzle body. The oil-return guide hole is close to oil-spraying hole to the left. The nozzle body has 3-5 tangential small through-holes. The oil inlet is communicated to oil-spraying hole through press cover, annular gap between nozzle body and nozzle seat, tangential small through-holes and cyclone hole. The oil-return guide hole communicated with oil-return hole is aimed at making the rotary center of nozzle always rotate near the oil-spraying hole, so ensuring better atomization with small flow and high regulation ratio of nozzle. It is suitable for stepless regulated full-automatic burner.
Description
The present invention relates to a kind of nozzle, particularly a kind of atomizing nozzle.
Atomizing nozzle is to rely on oil pressure to atomize, and can't all there be the input pressure height of requirement in general nozzle, and atomizing particle thick (generally more than 200 μ m) is regulated than little (being generally below 4), is difficult to guarantee problems such as good atomizing under low discharge.In small-sized blowing-type fully automatic burner, be difficult to accomplish step-less adjustment, all adopting a plurality of nozzles to carry out segmentation firepower formula at present both at home and abroad regulates, this certainly will cause boiler or the fluctuation of stove fire box temperature, the equipment that influences normally moves, and also is difficult to adapt to the needs of special occasions such as some temperature control requirement strictness.
The objective of the invention is: a kind of oil-return type mechanical atomization spray nozzle with bigger adjusting ratio that can move under low input pressure is provided.
For achieving the above object, the technical solution used in the present invention is: it comprises compositions such as gland, nozzle body, nozzle carrier.The convex shoulder in the nozzle carrier left end outside and the interior cylindrical whirl hole of nozzle body right-hand member closely cooperate, have the oil return guide hole in the nozzle carrier, oil return guide hole left end is near the nozzle opening of nozzle body, the nozzle body outer wall have 3～5 with nozzle body in the tangent tangential small through hole of cylindrical whirl hole, the fuel feed hole of nozzle carrier right-hand member, through gland and nozzle body, annular gap between the nozzle carrier, tangential small through hole on the nozzle body, the interior cylindrical whirl hole and the inner conical whirl hole of nozzle body are communicated with nozzle opening, and the oil return guide hole in the nozzle carrier is communicated with spill port through the oil return aperture.The nozzle body outer wall have with nozzle body in the tangent tangential small through hole of cylindrical whirl hole be generally 3.Nozzle opening is 1: 1.1 to 1: 2.1 with the ratio in the aperture of oil return guide hole.
Below in conjunction with accompanying drawing, provide details of the present invention by description to embodiment.
Description of drawings:
Fig. 1. structure principle chart of the present invention.
Fig. 2. A-A cutaway view of the present invention.
As shown in Figure 1 and Figure 2, the present invention includes gland 1, nozzle body 2, nozzle carrier 5 etc.On gland 1 and the nozzle body 5 screw thread is arranged all, both match screw after, make nozzle body 2 and nozzle carrier 5 compress mutually and seal.Nozzle body 2 inner chambers are the spin chamber, and spin chamber's right part is a cylinder, and the middle part is a cone, and the cone top is a nozzle opening 3, have 3 tangential small through hole 8 tangent with cylindrical spin chamber on nozzle body 2 outer walls.
Fuel oil as certain pressure enters nozzle carrier 5 from fuel feed hole 7, successively through the groove at nozzle carrier 5 middle parts, gland 1 and nozzle body 2, annular gap between the nozzle carrier 5, enter tangential small through hole 8, because the guide functions of tangential small through hole 8, the pressure of fuel oil can be converted into the speed energy, in the spin chamber, produce rotation at a high speed, move to nozzle opening 3 simultaneously, after arriving near the nozzle opening 3, part fuel oil rotates at a high speed and from nozzle opening 3 ejection owing to atomize with the strong friction of nozzle opening 3 inwalls and surrounding air generation, another part fuel oil by oil return guide hole 4 through oil return aperture 9, spill port 6 carries out oil return.The purpose of installing oil return guide hole 4 is to guarantee that pivot is near nozzle opening 3.By adjusting return pressure, can adjust the amount of fuel that enters the oil return guide hole, thereby adjust the distributive value of nozzle.
The present invention compares with background technology, and the advantage that has is: adopted the oil return guide hole, the revolving of nozzle It is all the time mobile near nozzle opening to turn to the center, reduces at return pressure, and when recirculating oil quantity increased, nozzle bore was attached Closely can remain strong rotation, thereby obtain good atomizing (50 μ m are following); Strong rotation Suppressed fuel oil and from nozzle opening, sprayed, thereby guaranteed that nozzle can move (minimum discharge under low discharge 1Kg/h is following), the adjusting that has greatly improved nozzle is than (regulating than reaching more than 80). The present invention can satisfy stepless Regulate the needs of fully automatic burner.
Claims (3)
1. oil-return type mechanical atomization spray nozzle, it comprises the gland nozzle body, nozzle carrier, it is characterized in that: the convex shoulder in nozzle carrier [5] the left end outside and the interior cylindrical whirl hole of nozzle body [2] right-hand member closely cooperate, open in the nozzle carrier [5] and suck back oil-piping layout hole [4], oil return guide hole [4] left end is near nozzle body [2], nozzle opening [3], nozzle body [2] outer wall have 3～5 with nozzle body [2] in the tangent tangential small through hole of cylindrical whirl hole, the fuel feed hole [7] of nozzle carrier [5] right-hand member, through gland [1] and nozzle body [2], annular gap between the nozzle carrier [5], tangential small through hole on the nozzle body [2], the interior circular cyclone hole of nozzle body [2] and inner conical whirl hole are communicated with nozzle opening [3], and the oil return guide hole [4] in the nozzle carrier [5] is led hole [4] through oil return aperture [9] and oil return and is communicated with spill port [6] through oil return aperture [9].
2. oil-return type mechanical atomization spray nozzle according to claim 1 is characterized in that: the tangent tangential small through hole [8] that nozzle body [2] outer wall has and the interior cylindrical whirl hole of nozzle body [2] is tangent is 3.
3. oil-return type mechanical atomization spray nozzle according to claim 1 is characterized in that: nozzle opening [3] is 1: 1.1 to 1: 2.1 with the ratio in the aperture of oil return guide hole [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98115869 CN1204747A (en) | 1998-07-17 | 1998-07-17 | Oil-return type mechanical atomization spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98115869 CN1204747A (en) | 1998-07-17 | 1998-07-17 | Oil-return type mechanical atomization spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1204747A true CN1204747A (en) | 1999-01-13 |
Family
ID=5224817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98115869 Pending CN1204747A (en) | 1998-07-17 | 1998-07-17 | Oil-return type mechanical atomization spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1204747A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368740B (en) * | 2007-08-16 | 2012-07-25 | 王抗美 | Enclosed fluctuation centrifugal injection nozzle |
| CN111878807A (en) * | 2020-08-04 | 2020-11-03 | 上海工业锅炉研究所有限公司 | Biodiesel nozzle suitable for industrial boiler |
| CN112303663A (en) * | 2019-07-29 | 2021-02-02 | 赛峰飞机发动机公司 | Injector head of a turbine engine comprising a swirl chamber internally delimited by a post |
| CN113739204A (en) * | 2021-08-23 | 2021-12-03 | 四川航天中天动力装备有限责任公司 | Pneumatic centrifugal backflow type fuel nozzle for backflow combustion chamber |
-
1998
- 1998-07-17 CN CN 98115869 patent/CN1204747A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368740B (en) * | 2007-08-16 | 2012-07-25 | 王抗美 | Enclosed fluctuation centrifugal injection nozzle |
| CN112303663A (en) * | 2019-07-29 | 2021-02-02 | 赛峰飞机发动机公司 | Injector head of a turbine engine comprising a swirl chamber internally delimited by a post |
| CN112303663B (en) * | 2019-07-29 | 2023-09-01 | 赛峰飞机发动机公司 | Injector head for a turbine engine comprising a swirl chamber delimited internally by a post |
| CN111878807A (en) * | 2020-08-04 | 2020-11-03 | 上海工业锅炉研究所有限公司 | Biodiesel nozzle suitable for industrial boiler |
| CN111878807B (en) * | 2020-08-04 | 2022-11-22 | 上海工业锅炉研究所有限公司 | Biodiesel nozzle suitable for industrial boiler |
| CN113739204A (en) * | 2021-08-23 | 2021-12-03 | 四川航天中天动力装备有限责任公司 | Pneumatic centrifugal backflow type fuel nozzle for backflow combustion chamber |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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