CN109701761A - A self-excited blocking pulse jet generation method - Google Patents
A self-excited blocking pulse jet generation method Download PDFInfo
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- CN109701761A CN109701761A CN201910040905.4A CN201910040905A CN109701761A CN 109701761 A CN109701761 A CN 109701761A CN 201910040905 A CN201910040905 A CN 201910040905A CN 109701761 A CN109701761 A CN 109701761A
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Abstract
本发明公开了一种自激阻断式脉冲射流发生方法，采用的发生器包括壳体和设于壳体内的转子，所述转子上设有周向分布的叶轮槽和贯穿转子两侧的过流通道，所述壳体一端设有第一注入通道和第二注入通道，另一端设有一个流出通道，向两个注入通道中同时注入带压流体，第一注入通道中的流体冲击叶轮槽，从而带动转子进行周期性旋转；第二注入通道内的带压流体在转子的阻隔下暂时无法流动，当转子旋转到过流通道与第二注入通道的出口相对时，壳体另一端的流出通道刚好连通过流通道的出口，第二注入通道内的流体通过过流通道进入流出通道内，在流出通道的出口形成脉冲射流。本发明利用发生器内部的流体带动转子，从而使转子能够阻断流体的射出，达到脉冲射流的目的。
The invention discloses a method for generating a self-excited blocking pulse jet. The generator used comprises a casing and a rotor arranged in the casing. The rotor is provided with circumferentially distributed impeller grooves and passages penetrating both sides of the rotor. A flow channel, one end of the casing is provided with a first injection channel and a second injection channel, and the other end is provided with an outflow channel, and pressurized fluid is injected into the two injection channels at the same time, and the fluid in the first injection channel impacts the impeller groove , so as to drive the rotor to rotate periodically; the pressurized fluid in the second injection channel cannot flow temporarily under the barrier of the rotor, when the rotor rotates until the overflow channel is opposite to the outlet of the second injection channel, the outflow from the other end of the casing The channel is just connected to the outlet of the flow channel, the fluid in the second injection channel enters the outflow channel through the flow channel, and a pulsed jet is formed at the outlet of the outflow channel. The invention utilizes the fluid inside the generator to drive the rotor, so that the rotor can block the ejection of the fluid and achieve the purpose of the pulse jet.
Description
Technical field
The present invention relates to fluidics fields, are related to a kind of pulsing jet method for generation, and in particular to a kind of self-excitation blocking
Formula pulsing jet method for generation.
Background technique
Pulsing jet due to being put suddenly by cumulative, and the modes such as pressure squeezes out and flow is adjusted, being formed has sufficiently high energy
Amount constantly generates the water hammer pressure with stronger energy during jet stream, thus has the material removal better than solid jet
Ability has broad application prospects in industrialization society.
Pulsing jet can be divided into auto-excitation type pulsing jet and independent-excited pulsing jet according to its producing method.Auto-excitation type arteries and veins
It is complicated to rush jet stream research mechanism, current research is mostly self-excited oscillation pulsed water jet.Realize that the form of pulsing jet is a variety of more
The modes such as sample has cumulative to put suddenly, and pressure squeezes out and flow is adjusted.Mechanical pulse jet device structure is simple, and sealing is simple,
High reliablity.
Summary of the invention
It is an object of the present invention to by flow adjust in the way of, impact by fluid to impeller of rotor slot makes rotor
It is rotated inside housings with certain speed.When rotor is rotated to a certain angle, the radial flow channels of rotor make the note of shell
Enter channel and flow pass is interconnected, to obtain auto-excitation type pulsing jet.Rotor is set by interior, keeps apparatus structure small and exquisite as far as possible
Simply, easy to repair.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that:
A kind of self-excitation blocking type pulsing jet method for generation, it is characterised in that: including shell and the rotor that is set in the housing,
The rotor is equipped with circumferentially distributed impeller slot and at least one flow channels through rotor two sides, described shell one end are set
There are two injection channel, the other end is equipped with a flow pass, and the first injection channel in two injection channels is led on rotor
Circumferentially distributed impeller slot, the second injection channel intermittence are connected to the side of flow channels, and specific pulsing jet method for generation is such as
Under:
Pressurized fluid is injected simultaneously into two injection channels, the fluid impact impeller slot in the first injection channel, thus
Rotor is driven to carry out Periodic Rotating；
Pressurized fluid in second injection channel can not temporarily flow under the barrier of rotor, when rotor rotated to circulation
When road is opposite with the outlet of the second injection channel, the flow pass of the shell other end is just connected to the outlet of flow channels, and second
Fluid in injection channel is entered in flow pass by flow channels, generates a jet stream in the outlet of flow pass；
As rotor persistently rotates under the fluid impact effect in the first injection channel, the flow channels on rotor are by the
Two injection channels are connected to flow pass intermittence, and every connection once generates a jet stream, and clearance-type connection forms pulse and penetrates
Stream.
As an improvement, first injection channel and the second injection channel are connected with pressure source pipeline all the way, by same
The pressure size of pressure fluid or uninterrupted adjust pulse frequency all the way.
As an improvement, the rotor is equipped with one or more flow channels, the quantity by the way that flow channels are arranged can
To adjust pulsing jet frequency.
As an improvement, the shell processes the accommodating chamber of installation rotor from side, the rotor is simultaneously installed by screw plug
In accommodating chamber, the two ends of rotor is processed into tapered surface or limit shaft, and the enclosure interior and screw plug corresponding part process
The cone tank or card slot of position-limiting action can be carried out to rotor.
As an improvement, the rotor body is revolving body, it is divided into impeller slot section and cylindrical section, the flow channels on rotor
One end is provided with the cylindrical section of rotor, and the other end is provided in the impeller slot of rotor opposite side impeller slot section, and described cross is circulated
Road is corresponding with the second injection channel in the axial position of cylindrical section, and cylindrical section and the accommodating chamber internal clearance of the rotor are matched
It closes, so that the second injection channel can not be directly connected to flow pass.
As an improvement, the impeller slot is the groove processed in rotor surface or the raised leaf in rotor surface welding
Piece composition.
As an improvement, the hull shape is cylindrical, the cylindroid bodily form, polygonal cylinder shape, cuboid and just
Any one in cube shape.
As an improvement, the hull shape is cylinder, second injection channel leads in cylinder ends eccentric setting,
The cylindrical section of respective rotor, the logical axle center eccentric setting relative to rotor in the first injection channel, the impeller slot section of respective rotor.
As an improvement, the screw plug and shell end face interconnected are equipped with sealing ring.
The beneficial effects of the present invention are:
The present invention by flow adjust in the way of, impact by fluid to impeller of rotor slot makes rotor inside housings
Do not stop to rotate.When rotor is rotated to a certain angle, the radial flow channels of rotor make injection channel and the flow pass of shell
It is interconnected, to obtain auto-excitation type pulsing jet.Rotor is set by interior, keeps apparatus structure small and exquisite simple as far as possible, avoids increase
Driving force keeps structure more complicated；The design of replaceable rotor keeps device easy to repair；The design of more injection channels can pass through
The input of flow reaches the variation of pulse frequency.
Detailed description of the invention
Fig. 1 is self-excitation blocking type pulsing jet generating device overall structure diagram of the present invention.
Fig. 2 is self-excitation blocking type pulsing jet generating device left view of the present invention.
Fig. 3 is self-excitation blocking type pulsing jet generating device cross-sectional view of the present invention.
Fig. 4 is B-B cross-sectional view in Fig. 3.
Fig. 5 is inventive shell cross-sectional view.
Fig. 6 is A-A cross-sectional view in Fig. 5.
Fig. 7 is rotor structure schematic diagram in the embodiment of the present invention.
Fig. 8 is rotor cross-sectional view in the embodiment of the present invention.
Fig. 9 is the impeller slot part cross-sectional view of rotor in Fig. 8.
Figure 10 is the rotor structure schematic diagram of three flow channels.
Figure 11 is screw plug structural schematic diagram.
Appended drawing reference: 1- shell, 2- rotor, 3- screw plug, the first injection channel 4-, the second injection channel 5-, 6- outflow are logical
Road, 7- flow channels, 8- threaded hole, 9- tapered surface, 10- cone tank, 11- impeller slot, 12- accommodating chamber, 13- screw plug hole, 14-
Limit shaft.
Specific embodiment
With reference to the accompanying drawing, the present invention is described further.It is readily apparent that the accompanying drawings in the following description is only
It is a kind of embodiment that the present invention designs.
The present embodiment provides a kind of self-excitation blocking type pulsing jet generating devices, as shown in Figures 1 to 9, including shell 1,
Rotor 2 and screw plug 3.In the present embodiment, shell 1 is cylindrical, and the rotor 2 is equipped with circumferentially distributed impeller slot 11 and passes through
The flow channels 7 of 2 two sides of rotor are worn, described 1 one end of shell is set there are two injection channel, and the other end is equipped with a flow pass 6,
Lead to the first injection channel 4 in two injection channels the circumferentially distributed impeller slot 11 of rotor 2, and the second injection channel 5 is because turn
The side of sub 2 turning effort intermittences connection flow channels 7, when the side of the second injection channel 5 connection flow channels 7, shell
The other side that the flow pass 6 of 1 other end of body is just connected to flow channels 7 forms pulsing jet, when fluid is logical from the first injection
When road 4 enters, the impeller slot 11 of rotor 2 is ceaselessly impacted.The kinetic energy of fluid acts on the wall surface of impeller slot 11 at this time, right
There is a turning moment in the Pivot axle of rotor 2, rotor 2 is rotated.When rotor 2 is rotated to certain
As soon as when angle, the radially-arranged flow channels 7 of rotor 2 are able to the second injection channel 5 set by connection 1 both ends of shell
With flow pass 6.I.e. under the percussion of fluid, rotor 2 does not stop to rotate, and the pulse that device is able to output certain frequency is penetrated
Stream.Two injection channels of shell 1 can not only be provided fluid by same pipeline, but also can provide fluid by different pipelines, be passed through
The Fluid pressure of first injection channel 4 adjusts the rotation speed of rotor 2, obtains the pulsing jet of different frequency.
As shown in Figures 2 and 3, the shell 1 is equipped with the first injection channel 4, the second injection channel 5, flow pass 6, holds
Receive chamber 12 and screw plug hole 13.Described device section is rounded.First injection channel 4 is inclined in 1 end of shell with the second injection channel 5
The heart and set.1 middle part side of shell is equipped with step-like hole slot, and to install accommodating chamber 12 set by rotor 2, and inner bottom is equipped with
Coniform confined planes are to limit 2 movement position of rotor (i.e. can only be around 2 axis rotation of rotor)；Outside is the installation sealing of screw plug 3
Face is sealed with sealing ring.Device rear end is equipped with the threaded hole 8 being connected with pipeline, and the opening of two injection channels is set to screw thread
Bottom eccentric part in hole 8.One runner leads on rotor 2 set circumferentially distributed impeller slot 11, with fluid impact impeller
Slot 11 makes rotor 2 make rotating motion, and is the first injection channel 4；One runner leads to radially-arranged cross set by rotor 2 and circulates
Road 7 is so that the injection channel in rotation to a certain angle of rotor 2 can be interconnected with the flow pass 6 of device rear end
Second injection channel 5.Flow pass 6 is being arranged at 1 axis centre of shell.Stepped vestibule is drilled in the middle part of shell 1.Its indsole
Portion is the accommodating chamber 12 for accommodating rotor 2, rotor 2 and vestibule clearance fit, to guarantee that rotor 2 can revolve easily hole is intracavitary
Turn, and fluid can be made to be not easy to leak out runner.Outside is the threaded hole 8 for installing screw plug 3.Shell 1 is carried out close by screw plug 3
Envelope.Screw plug 3 and the end face interconnected of shell 1 are equipped with sealing ring.
As shown in Figure 7, Figure 8 and Figure 9, the rotor 2 is equipped with flow channels 7 and impeller slot 11, and 2 ontology of rotor is back
Swivel, is divided into 11 sections of impeller slot and cylindrical section on rotor 2, and in the present embodiment, 2 ontology of rotor is cylindrical body, at cylindrical body both ends
The tapered surface 9 with position-limiting action is processed, a circle groove is processed as impeller slot 11 at middle part, does not process groove
Part is cylindrical section, and 7 one end of flow channels is located on 2 cylindrical surface of rotor, on the axial position of rotor 2 with shell 1 second
Injection channel 5 mutually coincide, the other end is positioned in the impeller slot 11 of side in contrast, on 2 axial position of rotor with shell 1
On flow pass 6 mutually coincide.Processing ensures that the second injection channel 5, flow channels 7 can be connected to flow pass 6.Processing
When can first carry out the drilling of flow channels 7, circumferentially distributed impeller slot 11 is then milled out with milling cutter.
It as shown in Figure 10, is another embodiment of rotor 2, rotor 2 or cylindrical body are process, process at its both ends
Limit shaft 14, the accommodating chamber of corresponding shell and screw plug end processing shaft outlet hole (can be not drawn into) in figure, in the embodiment, mistake
There are three circulation roads 7, and 7 quantity of flow channels can change to use stream frequency and change, when rotor one circle of rotation, second
Injection channel 5 is connected to three times with flow pass 6, therefore there are two types of the modes of present invention adjustment pulsing jet frequency, one is logical
Adjustment 4 fluid pressure of the first injection channel is crossed, adjusts pulsing jet frequency so as to adjust 2 revolving speed of rotor, another kind is logical
Cross 7 quantity of setting flow channels adjustment pulsing jet frequency.
It should be pointed out that 2 ontology of rotor of the present invention can be cylindrical body, it is also possible to the cylindrical body of variable cross-section, as long as
Meet the stream that the fluid in the second injection channel 5 can not directly be connected to the other end by the gap between rotor 2 and 1 inner wall of shell
11 sections of channel 6 out, i.e., the described rotor 2 at least cylindrical section or impeller slot and 12 internal clearance of accommodating chamber cooperate, so that the
Two injection channels 5 can not be directly connected to flow pass 6.
It, can be to 5 He of the second injection channel when being provided with the cylindrical section and 12 inner wall clearance fit of accommodating chamber of flow channels 7
Good buffer action is played between flow pass 6, impeller slot 11 is either the groove processed on 2 surface of rotor at this time
Common any prior art can be can be in the middle part of the groove or even rotor 2 for the raised blade composition that 2 surface of rotor is welded
Middle impeller, if fluid in the first injection channel 4 can impact rotor 2 rotor 2 is rotated.
As shown in figure 11, the cone tank 10 for limit is equipped among 3 end of screw plug, while end ream is flat with installation
Sealing ring.
A kind of self-excitation blocking type pulsing jet method for generation of the present invention, can be by adjusting impeller slot 11 on impact rotor 2
Fluid pressure adjusts the revolving speed of rotor 2, to obtain the pulsing jet of different frequency.
In use, 6 one end of flow pass of the invention is connected with outlet conduit or fluidic generator nozzle, this is sent out
Bright injection channel one end is connected with pressure source fluid, adjusts turning for rotor 2 by control 4 fluid pressure of the first injection channel
Speed, so that the second injection channel 5 to form the pulse of certain frequency by intermittent communicate of flow channels 7 and flow pass 6
Jet stream.
The above is a kind of example of the invention, and it is intended that the present invention is limited in any way, all according to this
Any simple modification, equivalent change and modification made by the technical spirit of invention, for example 2 two sides of rotor are used instead different from tapered surface
Flow channels 7, the quantity of impeller slot 11 and variation of shape etc. on 9 limits, the variation of 1 injection channel quantity of shell and rotor 2,
It falls within the scope of protection of the present invention.
Claims (9)
1. a kind of self-excitation blocking type pulsing jet method for generation, it is characterised in that: including shell and the rotor being set in the housing, institute
Rotor is stated to be equipped with equipped with circumferentially distributed impeller slot and at least one flow channels through rotor two sides, described shell one end
Two injection channels, the other end are equipped with a flow pass, and rotor last week is led in the first injection channel in two injection channels
To the impeller slot of distribution, the second injection channel intermittence is connected to the side of flow channels, and specific pulsing jet method for generation is as follows:
Pressurized fluid is injected simultaneously into two injection channels, the fluid impact impeller slot in the first injection channel, to drive
Rotor carries out Periodic Rotating；
Pressurized fluid in second injection channel can not temporarily flow under the barrier of rotor, when rotor rotate to flow channels with
When the outlet of second injection channel is opposite, the flow pass of the shell other end is just connected to the outlet of flow channels, the second injection
Fluid in channel is entered in flow pass by flow channels, generates a jet stream in the outlet of flow pass；
As rotor persistently rotates under the fluid impact effect in the first injection channel, the flow channels on rotor are by the second note
Enter channel to be connected to flow pass intermittence, every connection once generates a jet stream, and clearance-type connection forms pulsing jet.
2. self-excitation blocking type pulsing jet method for generation as described in claim 1, it is characterised in that: first injection channel
It is connected with the second injection channel with pressure source pipeline all the way, by with the pressure size of pressure fluid or uninterrupted tune all the way
Save pulse frequency.
3. self-excitation blocking type pulsing jet method for generation as described in claim 1, it is characterised in that: the rotor is equipped with one
A or multiple flow channels, by the adjustable pulsing jet frequency of quantity that flow channels are arranged.
4. self-excitation blocking type pulsing jet method for generation as described in claim 1, it is characterised in that: the shell adds from side
Work goes out to install the accommodating chamber of rotor, and the rotor is simultaneously mounted in accommodating chamber by screw plug, and the two ends of rotor processing is tapered
Face or limit shaft, the enclosure interior and screw plug corresponding part process the cone tank or card that position-limiting action can be carried out to rotor
Slot.
5. self-excitation blocking type pulsing jet method for generation as described in claim 1, it is characterised in that: the rotor body is back
It turns, is divided into impeller slot section and cylindrical section on rotor, described flow channels one end is provided with the cylindrical section of rotor, and the other end opens up
In the impeller slot of rotor opposite side impeller slot section, axial position and second injection channel of the flow channels in cylindrical section
Corresponding, the cylindrical section of the rotor and accommodating chamber internal clearance cooperate, so that the second injection channel and flow pass can not be straight
Lead in succession.
6. self-excitation blocking type pulsing jet method for generation as claimed in claim 5, it is characterised in that: the impeller slot is to turn
The groove that sublist face processes or the raised blade composition in rotor surface welding.
7. self-excitation blocking type pulsing jet method for generation as claimed in claim 5, it is characterised in that: the hull shape is circle
Any one in cylinder shape, the cylindroid bodily form, polygonal cylinder shape, cuboid and the square bodily form.
8. self-excitation blocking type pulsing jet method for generation as claimed in claim 7, it is characterised in that: the hull shape is circle
Cylindricality, second injection channel lead in cylinder ends eccentric setting, the cylindrical section of respective rotor, and the first injection channel leads to phase
For the axle center eccentric setting of rotor, the impeller slot section of respective rotor.
9. self-excitation blocking type pulsing jet method for generation as claimed in claim 4, it is characterised in that: the screw plug and shell phase
The end face to connect is equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040905.4A CN109701761B (en) | 2019-01-16 | 2019-01-16 | A self-excited blocking pulse jet generation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040905.4A CN109701761B (en) | 2019-01-16 | 2019-01-16 | A self-excited blocking pulse jet generation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109701761A true CN109701761A (en) | 2019-05-03 |
| CN109701761B CN109701761B (en) | 2020-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910040905.4A Expired - Fee Related CN109701761B (en) | 2019-01-16 | 2019-01-16 | A self-excited blocking pulse jet generation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109701761B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618699A (en) * | 2022-03-29 | 2022-06-14 | 合肥工业大学 | A Pulsed Gas Jet Device Based on Porous Rotating Discs Different from the Flow Channel |
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|---|---|---|---|---|
| SU784933A1 (en) * | 1979-01-15 | 1980-12-07 | Ярославский политехнический институт | Centrifugal-jet injection nozzle |
| CN2467193Y (en) * | 2001-03-09 | 2001-12-26 | 牛子久 | Drill column inner pulse liquid flow generator |
| CN1869501A (en) * | 2006-07-03 | 2006-11-29 | 浙江工业大学 | Blade pulsation generator |
| WO2015189535A1 (en) * | 2014-06-14 | 2015-12-17 | Mark Wilkinson | A fire fighting nozzle |
| CN205164995U (en) * | 2015-10-22 | 2016-04-20 | 中国石油大学(华东) | Self -powered mechanical type pulse jet generator |
| CN205164994U (en) * | 2015-10-22 | 2016-04-20 | 中国石油大学(华东) | Blade rotation type pulse jet generator |
| US10166556B2 (en) * | 2012-08-07 | 2019-01-01 | Vac-Tron Equipment, Llc | Pulsating high pressure air and water nozzle |
-
2019
- 2019-01-16 CN CN201910040905.4A patent/CN109701761B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU784933A1 (en) * | 1979-01-15 | 1980-12-07 | Ярославский политехнический институт | Centrifugal-jet injection nozzle |
| CN2467193Y (en) * | 2001-03-09 | 2001-12-26 | 牛子久 | Drill column inner pulse liquid flow generator |
| CN1869501A (en) * | 2006-07-03 | 2006-11-29 | 浙江工业大学 | Blade pulsation generator |
| US10166556B2 (en) * | 2012-08-07 | 2019-01-01 | Vac-Tron Equipment, Llc | Pulsating high pressure air and water nozzle |
| WO2015189535A1 (en) * | 2014-06-14 | 2015-12-17 | Mark Wilkinson | A fire fighting nozzle |
| CN205164995U (en) * | 2015-10-22 | 2016-04-20 | 中国石油大学(华东) | Self -powered mechanical type pulse jet generator |
| CN205164994U (en) * | 2015-10-22 | 2016-04-20 | 中国石油大学(华东) | Blade rotation type pulse jet generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618699A (en) * | 2022-03-29 | 2022-06-14 | 合肥工业大学 | A Pulsed Gas Jet Device Based on Porous Rotating Discs Different from the Flow Channel |
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| Publication number | Publication date |
|---|---|
| CN109701761B (en) | 2020-07-24 |
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Granted publication date: 20200724 Termination date: 20220116 |