CN110000021B - Two-stage rotary mixing flexible nozzle - Google Patents
Two-stage rotary mixing flexible nozzle Download PDFInfo
- Publication number
- CN110000021B CN110000021B CN201910420755.XA CN201910420755A CN110000021B CN 110000021 B CN110000021 B CN 110000021B CN 201910420755 A CN201910420755 A CN 201910420755A CN 110000021 B CN110000021 B CN 110000021B
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- CN
- China
- Prior art keywords
- pipe
- rotary mixing
- oil
- primary
- mixing pipe
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 58
- 238000000889 atomisation Methods 0.000 description 13
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0491—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid the liquid and the gas being mixed at least twice along the flow path of the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
Landscapes
- Nozzles (AREA)
Abstract
The invention relates to a secondary rotary mixing flexible nozzle. The secondary rotary mixing flexible nozzle comprises an oil pipe, a cone valve, an air pipe, a shell, a primary rotary mixing pipe and a secondary rotary mixing pipe, wherein a low-pressure oil return hole is formed in the top of the oil pipe; the bottom of the primary rotary mixing pipe is fixedly connected with the top of the secondary rotary mixing pipe, a rotary mixing cavity is formed at the joint of the primary rotary mixing pipe and the secondary rotary mixing pipe, the primary rotary mixing pipe and the secondary rotary mixing pipe are both arranged in the shell, the bottom of the secondary rotary mixing pipe is connected with the bottom of the shell, and the top of the shell is in threaded connection and communicated with the air pipe; the air pipe is sleeved and fixedly connected on the outer side wall of the oil pipe. The novel atomizing device has the advantages that the whole structural design is reasonable, the difficult problem of manual adjustment is solved, the function of flexibly adjusting flow along with power is realized, the atomizing effect is enhanced, and the practicability is high.
Description
Technical Field
The invention relates to a secondary rotary mixing flexible nozzle.
Background
The fuel nozzle is used for atomizing liquid fuel into fine liquid drops, quickly evaporating and fully mixing the liquid fuel with combustion air to form a natural mixture, and fully burning the natural mixture under the excitation of ignition energy to release heat.
The fuel nozzle mainly adopts the bubble atomization technology, and the principle of bubble atomization is as follows: the fuel oil and the atomizing medium (steam or compressed air) are sprayed out after being fully mixed in the mixing chamber by a large amount of steam-in-oil bubbles generated by the bubble atomizing generator, and the blasting atomization is realized by using higher pressure difference.
At present, the flow-adjustable nozzle needs to manually rotate the water spraying block to adjust the flow, and some nozzles even need to be shut down for adjustment, cannot be adjusted online at any time, and is very inconvenient. The spray holes of the multi-spray hole structure are smaller and easier to be blocked under the same flow.
Disclosure of Invention
The invention aims to solve the problems, and provides a two-stage rotary mixing flexible nozzle, wherein the conical valve of the two-stage rotary mixing flexible nozzle can automatically adjust the opening according to the pressure of oil in an oil pipe, so that the function of flexibly adjusting the flow is achieved, the oil return function is also achieved, and the oil is saved; in addition, primary atomization is carried out through the primary rotary mixing pipe and the rotary mixing cavity, gas and oil are mixed to form bubble flow, and secondary atomization is carried out through the secondary rotary mixing pipe, so that the atomization effect is enhanced; the whole structure is reasonable in design, the function of flexibly adjusting the flow along with the power requirement is realized, the atomization effect is enhanced, and the practicability is high; the technical scheme adopted by the method is as follows:
the secondary rotary mixing flexible nozzle comprises an oil pipe, a cone valve, an air pipe, a shell, a primary rotary mixing pipe and a secondary rotary mixing pipe, wherein a low-pressure oil return hole is formed in the top of the oil pipe, the cone valve is arranged in the oil pipe, a boss for separating an oil cavity of the oil pipe is formed on the side wall of the cone valve, an oil return channel is formed in the cone valve, the oil return channel is communicated with the low-pressure oil return hole of the oil pipe, the bottom of the oil pipe is connected with the top of the primary rotary mixing pipe, and a first sealing ring is arranged at the joint; the bottom of the primary rotary mixing pipe is fixedly connected with the top of the secondary rotary mixing pipe, a rotary mixing cavity is formed at the joint of the primary rotary mixing pipe and the secondary rotary mixing pipe, the primary rotary mixing pipe and the secondary rotary mixing pipe are both arranged in the shell, the bottom of the secondary rotary mixing pipe is connected with the bottom of the shell, and a third sealing ring is arranged at the joint; the top of the shell is in threaded connection with the air pipe, and the air pipe is communicated with the inner cavity of the shell; the air pipe is sleeved and fixedly connected to the outer side wall of the oil pipe.
Optionally, the bottom of the cone valve forms two conical surfaces, and the conical angle of the conical surface positioned above is larger than that of the conical surface positioned below.
Optionally, a surplus cavity for facilitating movement of the cone valve is formed in the top of the oil pipe.
Optionally, a plurality of circumferentially inclined primary air holes are formed on the side wall of the primary mixing pipe, and the mixing cavity is communicated with the air pipe through the primary air holes.
Optionally, an upper conical surface and a lower conical surface are formed on the side wall of the primary mixing tube, and the cone angle of the upper conical surface is larger than that of the lower conical surface.
Optionally, the inclination angle of the primary air hole is 30 degrees.
Optionally, the mixing chamber is in the shape of a spindle.
Optionally, a plurality of circumferentially inclined second-stage air holes are formed in the second-stage mixing pipe, and an output channel of the second-stage mixing pipe is communicated with the air pipe through the second-stage air holes.
Optionally, the outlet of the output channel of the secondary mixing tube is tapered.
Optionally, a second sealing ring is arranged at the threaded connection part of the air pipe and the shell.
Optionally, the oil pipe, the cone valve, the air pipe, the shell, the primary rotary mixing pipe and the secondary rotary mixing pipe are all coaxially arranged.
The invention has the following advantages: the cone valve can automatically adjust the opening according to the pressure of the oil in the oil pipe, so that the function of flexibly adjusting the flow is achieved, the oil return function is achieved, and the oil is saved; in addition, primary atomization is carried out through the primary rotary mixing pipe and the rotary mixing cavity, gas and oil are mixed to form bubble flow, and secondary atomization is carried out through the secondary rotary mixing pipe, so that the atomization effect is enhanced; the whole structural design is reasonable, the function of flexible adjustment along with power is realized, the atomization effect is enhanced, and the practicability is high.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1: the invention discloses a structural schematic diagram of a secondary rotary mixing flexible nozzle.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
in the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, it should be understood that the use of the term orientation should not limit the scope of protection claimed herein.
In some alternative embodiments, the secondary rotary mixing flexible nozzle comprises an oil pipe 1, a cone valve 2, an air pipe 3, a shell 6, a primary rotary mixing pipe 5 and a secondary rotary mixing pipe 7, wherein a low-pressure oil return hole 11 is formed in the top of the oil pipe 1, the cone valve 2 is arranged in the oil pipe 1, a boss for separating an oil cavity of the oil pipe is formed on the side wall of the cone valve 2, the oil cavity of the oil pipe is divided into a high-pressure oil cavity 15 and a low-pressure oil cavity 13 through the boss, an oil return channel 21 is formed in the cone valve 2, the oil return channel 21 is communicated with the low-pressure oil return hole 11 of the oil pipe, the bottom of the oil pipe 1 is connected with the top of the primary rotary mixing pipe 5, and a first sealing ring 41 is arranged at the joint; the oil return channel 21 of the cone valve is communicated with the injection channel 51 of the primary rotary mixing pipe, the bottom of the primary rotary mixing pipe 5 is fixedly connected with the top of the secondary rotary mixing pipe 7, a rotary mixing cavity 8 is formed at the joint of the primary rotary mixing pipe 5 and the secondary rotary mixing pipe 7, the primary rotary mixing pipe 5 and the secondary rotary mixing pipe 7 are both arranged in the shell 6, the bottom of the secondary rotary mixing pipe 7 is connected with the bottom of the shell 6, and a third sealing ring 43 is arranged at the joint; the top of the shell 6 is in threaded connection with the air pipe 3, and the air pipe 3 is communicated with the inner cavity of the shell 6; the air pipe 3 is sleeved and fixedly connected to the outer side wall of the oil pipe 1.
With the above embodiment, two conical surfaces are formed at the bottom of the cone valve 2, and the cone angle of the conical surface located at the upper part is larger than that of the conical surface located at the lower part. The pressure from oil resistance on the cone valve is further relieved through the two conical surfaces of the cone valve, so that high-pressure oil is stable in transition, and the service life of the cone valve is prolonged.
Optionally, a surplus cavity 12 for facilitating movement of the cone valve is arranged at the top of the oil pipe 1. And a spring is arranged between the boss of the cone valve and the allowance cavity of the oil pipe.
Optionally, a plurality of circumferentially inclined primary air holes 52 are formed on the side wall of the primary mixing pipe 5, and the mixing cavity 8 is communicated with the air pipe 3 through the primary air holes 52.
By adopting the above embodiment, the side wall of the primary swirl mixing pipe 5 is formed with an upper conical surface and a lower conical surface, the conical angle of the upper conical surface is larger than that of the lower conical surface, the primary air holes are arranged on the lower conical surface, the conical angle of the upper conical surface is larger than that of the lower conical surface, so that gas in the air pipe can enter the swirl mixing cavity more stably through the primary air holes, and the influence of the gas pressure on the vibration of the nozzle is reduced.
Optionally, the primary air holes 52 are inclined at an angle of 30 degrees.
Optionally, the mixing chamber 8 is in the form of a spindle.
With the above embodiment, the secondary mixing pipe 7 is provided with a plurality of circumferentially inclined secondary air holes 72, and the output channel 71 of the secondary mixing pipe 7 is communicated with the air pipe 3 through the secondary air holes 72. The secondary cyclone mixing pipe is characterized in that a conical surface is formed on the side wall of the secondary cyclone mixing pipe, the secondary air holes are formed in the conical surface, and the gas in the air pipe can enter the output channel more stably through the secondary air holes through transition buffering of the conical surface, so that the influence of the gas pressure on the vibration of the nozzle is reduced.
Optionally, the outlet of the output channel 71 of the secondary mixing tube 7 is conical; by the conical design at the outlet, the contact surface is enlarged, which helps to relieve the pressure of the atomizing gas.
Optionally, a second sealing ring 42 is arranged at the threaded connection of the air pipe 3 and the housing 6.
Optionally, the oil pipe 1, the cone valve 2, the air pipe 3, the shell 6, the primary rotary mixing pipe 5 and the secondary rotary mixing pipe 7 are all coaxially arranged.
With the above embodiment, the high-pressure oil enters the high-pressure oil chamber 15 from the oil inlet 14, and the opening degree of the cone valve 2 is controlled under the combined action of the oil pressure and the spring force. When the pressure of the high-pressure oil cavity 15 is increased, the spring is compressed, the rising height of the cone valve 2 is regulated, the distance between the cone valve 2 and the injection channel 51 is larger and larger, and meanwhile, the larger the oil flows out of the injection channel 51; conversely, when the fluid in the high-pressure oil cavity 15 becomes smaller, the pressure in the high-pressure oil cavity 15 is small, the spring is extended, the cone valve 2 is lowered, the amount of the oil flowing out of the injection channel 51 is reduced, the oil in the injection channel 51 is uniformly sprayed out until the pressure and the elasticity of the fluid reach balance, and the oil is atomized once through the rotary mixing cavity and then mixed with the gas entering from the secondary air hole 72 for secondary atomization, so that the atomization effect is ensured.
The present invention has been described above by way of example, but the present invention is not limited to the above-described embodiments, and any modifications or variations based on the present invention fall within the scope of the present invention.
Claims (8)
1. A two-stage spin-mixing flexible nozzle, characterized in that: the oil pipe comprises an oil pipe (1), a cone valve (2), an air pipe (3), a shell (6), a primary rotary mixing pipe (5) and a secondary rotary mixing pipe (7), wherein a low-pressure oil return hole (11) is formed in the top of the oil pipe (1), the cone valve (2) is arranged in the oil pipe (1), a boss for separating an oil cavity of the oil pipe is formed on the side wall of the cone valve (2), an oil return channel (21) is formed in the cone valve (2), the oil return channel (21) is communicated with the low-pressure oil return hole (11) of the oil pipe, the bottom of the oil pipe (1) is connected with the top of the primary rotary mixing pipe (5), and a first sealing ring (41) is arranged at the joint; the bottom of the primary rotary mixing pipe (5) is fixedly connected with the top of the secondary rotary mixing pipe (7), a rotary mixing cavity (8) is formed at the joint of the primary rotary mixing pipe (5) and the secondary rotary mixing pipe (7), the primary rotary mixing pipe (5) and the secondary rotary mixing pipe (7) are both arranged in the shell (6), the bottom of the secondary rotary mixing pipe (7) is connected with the bottom of the shell (6), and a third sealing ring (43) is arranged at the joint; the top of the shell (6) is in threaded connection with the air pipe (3), and the air pipe (3) is communicated with the inner cavity of the shell (6); the air pipe (3) is sleeved and fixedly connected to the outer side wall of the oil pipe (1); a plurality of circumferentially inclined primary air holes (52) are formed in the side wall of the primary rotary mixing pipe (5), and the rotary mixing cavity (8) is communicated with the air pipe (3) through the primary air holes (52); the threaded connection part of the air pipe (3) and the shell (6) is provided with a second sealing ring (42).
2. A two-stage mixing flexible nozzle as defined in claim 1, wherein: the top of the oil pipe (1) is provided with a surplus cavity (12) which is used for facilitating movement of the cone valve.
3. A two-stage mixing flexible nozzle as defined in claim 1, wherein: the side wall of the primary rotary mixing pipe (5) is provided with an upper conical surface and a lower conical surface, and the cone angle of the upper conical surface is larger than that of the lower conical surface.
4. A two-stage mixing flexible nozzle as defined in claim 1, wherein: the inclination angle of the primary air hole (52) is 30 degrees.
5. A two-stage mixing flexible nozzle as defined in claim 1, wherein: the rotary mixing cavity (8) is in a spindle shape.
6. A two-stage mixing flexible nozzle as defined in claim 1, wherein: a plurality of circumferentially inclined second air holes (72) are formed in the second-stage rotary mixing pipe (7), and an output channel (71) of the second-stage rotary mixing pipe (7) is communicated with the air pipe (3) through the second air holes (72).
7. A two-stage mixing flexible nozzle as defined in claim 6, wherein: the outlet of the output channel (71) of the secondary mixing pipe (7) is conical.
8. A two-stage mixing flexible nozzle as defined in claim 1, wherein: the oil pipe (1), the cone valve (2), the air pipe (3), the shell (6), the primary rotary mixing pipe (5) and the secondary rotary mixing pipe (7) are all coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910420755.XA CN110000021B (en) | 2019-05-20 | 2019-05-20 | Two-stage rotary mixing flexible nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910420755.XA CN110000021B (en) | 2019-05-20 | 2019-05-20 | Two-stage rotary mixing flexible nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110000021A CN110000021A (en) | 2019-07-12 |
| CN110000021B true CN110000021B (en) | 2023-12-26 |
Family
ID=67177519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910420755.XA Active CN110000021B (en) | 2019-05-20 | 2019-05-20 | Two-stage rotary mixing flexible nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110000021B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4264214A (en) * | 1978-06-09 | 1981-04-28 | Nordson Corporation | Gear motor/mixer |
| CN1133206A (en) * | 1994-03-11 | 1996-10-16 | 多塔乐精制销售有限公司 | Method and device for atomizing liquid with aid of auxiliary gas |
| US5732885A (en) * | 1994-10-07 | 1998-03-31 | Spraying Systems Co. | Internal mix air atomizing spray nozzle |
| CN1652876A (en) * | 2002-05-07 | 2005-08-10 | 喷洒系统公司 | Internal mix air atomizing spray nozzle assembly |
| CN202417399U (en) * | 2012-02-22 | 2012-09-05 | 大庆大华宏业石油工程技术有限公司 | Pumping unit well mouth sealing device assembly |
| JP2015089549A (en) * | 2013-11-06 | 2015-05-11 | ダイキン工業株式会社 | Air bubble spray nozzle and method of adjusting air bubble spray nozzle |
| CN204438110U (en) * | 2015-01-23 | 2015-07-01 | 中国石油大学(华东) | A kind of Double screw leading medium atomization nozzle |
| CN205803105U (en) * | 2016-07-20 | 2016-12-14 | 中国石油大学(华东) | The double shower nozzle self-excited pulse water jet aerator device of a kind of two-stage |
| CN206144549U (en) * | 2016-11-07 | 2017-05-03 | 中国石油大学(华东) | Multistage separation gas anchor |
| CN108166940A (en) * | 2017-12-25 | 2018-06-15 | 中国石油大学(华东) | A kind of by-pass valve of screwdrill and its application method with huge discharge shunting function |
| CN210079836U (en) * | 2019-05-20 | 2020-02-18 | 中国石油大学(华东) | Secondary rotary mixing flexible nozzle |
-
2019
- 2019-05-20 CN CN201910420755.XA patent/CN110000021B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4264214A (en) * | 1978-06-09 | 1981-04-28 | Nordson Corporation | Gear motor/mixer |
| CN1133206A (en) * | 1994-03-11 | 1996-10-16 | 多塔乐精制销售有限公司 | Method and device for atomizing liquid with aid of auxiliary gas |
| US5732885A (en) * | 1994-10-07 | 1998-03-31 | Spraying Systems Co. | Internal mix air atomizing spray nozzle |
| CN1652876A (en) * | 2002-05-07 | 2005-08-10 | 喷洒系统公司 | Internal mix air atomizing spray nozzle assembly |
| CN202417399U (en) * | 2012-02-22 | 2012-09-05 | 大庆大华宏业石油工程技术有限公司 | Pumping unit well mouth sealing device assembly |
| JP2015089549A (en) * | 2013-11-06 | 2015-05-11 | ダイキン工業株式会社 | Air bubble spray nozzle and method of adjusting air bubble spray nozzle |
| CN204438110U (en) * | 2015-01-23 | 2015-07-01 | 中国石油大学(华东) | A kind of Double screw leading medium atomization nozzle |
| CN205803105U (en) * | 2016-07-20 | 2016-12-14 | 中国石油大学(华东) | The double shower nozzle self-excited pulse water jet aerator device of a kind of two-stage |
| CN206144549U (en) * | 2016-11-07 | 2017-05-03 | 中国石油大学(华东) | Multistage separation gas anchor |
| CN108166940A (en) * | 2017-12-25 | 2018-06-15 | 中国石油大学(华东) | A kind of by-pass valve of screwdrill and its application method with huge discharge shunting function |
| CN210079836U (en) * | 2019-05-20 | 2020-02-18 | 中国石油大学(华东) | Secondary rotary mixing flexible nozzle |
Non-Patent Citations (1)
| Title |
|---|
| 气泡发生结构对二级燃油雾化喷嘴性能影响的实验研究;王晓琦;仇性启;崔运静;;石油化工设备(第02期);11-14页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110000021A (en) | 2019-07-12 |
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Inventor after: Cui Yunjing Inventor after: Qiu Xingqi Inventor after: Liu Yue Inventor after: Xie Kai Inventor after: Wang Jianxin Inventor before: Cui Yunjing Inventor before: Qiu Xingqi Inventor before: Liu Yue Inventor before: Xie Kai Inventor before: Wang Jianxin Inventor before: Mao Yuwen |
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