CN207551196U - A kind of vacuum screw propeller - Google Patents
A kind of vacuum screw propeller Download PDFInfo
- Publication number
- CN207551196U CN207551196U CN201721713220.4U CN201721713220U CN207551196U CN 207551196 U CN207551196 U CN 207551196U CN 201721713220 U CN201721713220 U CN 201721713220U CN 207551196 U CN207551196 U CN 207551196U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve body
- helical duct
- admission hole
- air
- 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.)
- Expired - Fee Related
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Abstract
A kind of vacuum screw propeller, including valve body and spool；The valve body is placed on the spool, and the spool includes the front and rear conveying channel for running through spool, and the valve body is offered for the air admission hole of external tracheae；The spool or/and valve body one end offer several helical ducts, and helical duct is connected with air admission hole；When air admission hole is passed through gas, gas enters into and through helical duct by venthole and is expelled to backward in conveying channel.The utility model passes through sets helical duct in spool or/and valve body so that compressed air forms spiral high speed air-flow in helical duct, air-flow rotational flow in an axial direction, and also radial rotary flows the powder for driving in material bolt together, so as to will gradually expect that bolt is broken up.And the compressed gas of air admission hole is passed by helical duct in conveying channel from front to back, accelerates the flow velocity of the gas behind helical duct, so as to form vacuum in conveying Channel front end inlet, reaches the negative pressure transportation of material.
Description
Technical field
The utility model belongs to pipeline field, is related to a kind of vacuum screw propeller.
Background technology
In existing technology, for the long distance delivery of powder, generally blown using big flow compressed gas positive pressure
It send or big flow blower negative pressure suction and conveying.
Positive pressure is blowed, if the mobility of the powder of conveying is bad or wherein mixes bigger irregular
Particle in the transmission process of long range, easily forms material bolt in conveyance conduit, causes frequent plugging.
For vacuum pressure conveying, generally powder is sucked by vacuum in the end of conveying using the wind turbine of big flow,
If the conveying of the small distance for the powder of small flow, if also wind turbine being used to carry out negative pressure transportation, on the one hand meeting
Input cost is very high, high energy consumption, poor reliability, and installation site can also be restricted.
Therefore, in order to solve plugging puzzlement, at this stage generally using air compressed gas, by a check valve toward delivery pipe
It blows in road, so as to expect that bolt is broken up.Such as CN200880130641.1, a kind of pneumatic evacuation pump is disclosed, including：Import group
Part, the import component have imported valve and the purging air injection device of alternative operation, which is plugged in dress
Expect between port and the import for receiving the material from material delivery system, the purging air injection device of alternative operation
On the charging port side of the imported valve；Chamber, the chamber have selectable length and are basically unchanged transversal
Face and with discharge end and lead to it is described charging port charging end；And conveying assembly, the conveying assembly have：It is logical
To the discharge end and the channel for conveying and exporting is extended to, described between the discharge end and the conveying outlet
The conveying valve plugged in channel leads to the alternative of the channel between the vent valves and the discharge end
The venturi vacuum source of operation and the discharge air injection device of alternative operation, the discharge air injection device position
In the downstream of the vent valves and utilize the discharge air from Venturi tube.
Utility model content
The technical problem to be solved by the invention is to provide a kind of vacuum screw propulsions for providing spiral air flow impact material bolt
Device.
To achieve the above object, the design utility model provides following technical solution：
A kind of vacuum screw propeller, including valve body and spool；The valve body is placed on the spool, and the spool includes
The front and rear conveying channel through spool, the valve body are offered for the air admission hole of external tracheae；The spool or/and valve body one
End offers several helical ducts, and helical duct is connected with air admission hole, and helical duct is connect with conveying channel, when air admission hole is passed through
During gas, gas enters into and through helical duct by venthole and is expelled to backward in conveying channel.
Since the pressure that material bolt is formed and then applied in an axial direction can only allow material bolt to be pressed more solid, so this reality
With novel by setting helical duct on spool or/and valve body, realize that compressed air forms spiral high speed in conveying channel
Air-flow, air-flow radially rotational flow, also radial rotary flows the powder for driving in material bolt together, so as to gradually beat material bolt
It dissipates.In addition the aperture of original air admission hole is larger, and the width of helical duct is smaller, in the case where flow is certain, compressed gas
After entering helical duct by air admission hole, flow velocity faster, forms the kinetic energy of bigger to break up material bolt.Compressed gas is led to from spiral
After road discharge, the flow velocity of gas in charging line is accelerated, so as to siphon away the air in preceding conduits, vacuum is formed, reaches object
The negative pressure transportation of material.
Wherein, the spool coordinates with valve body for transition.Cooperation between spool and valve body can more closely be matched
It closes, it is possible to have certain interval, as long as meeting, the compressed gas being passed through by air admission hole is most of to flow out i.e. via helical duct
It can.
A cavity is formed between the valve body and spool, the cavity is connected with the air admission hole；The cavity with it is described
Helical duct connects.
It is described to further include the flange for being respectively arranged at the valve body and spool front and rear sides.By in valve body and spool both sides
Flange is set, more easily the vacuum screw propeller can be mounted in existing pipeline.
Internal diameter positioned at the flange of rear side tapers into from front to back.
By the way that the internal diameter for being located at the flange of rear side is tapered into from front to back, compressed air can be produced when leaving flange
The pressure of bigger is given birth to push powder and push away bulk cargo bolt.
The helical duct is evenly distributed on spool or/and valve body.Due to helical duct certain positions it is overstocked or
Person is excessively thin, and may result in air-flow cannot regularly move and generate sinuous flow, and sinuous flow can consume kinetic energy, reduces air-flow to expecting bolt
Impact force.
The air admission hole is threaded hole, for connecting to access compressed air with external gas-pipe thread.
By the way that air admission hole to be set as to the threaded connection of threaded hole and external tracheae, realization is bonded with external tracheae,
Excessive compressed gas is avoided to be leaked in conveying.
Sealing ring is equipped between the flange, valve body and spool, for sealing vacuum screw propeller, avoids gas from method
Outside is flowed in gap between blue, valve body and spool.By designing rubber seal between valve body and spool, avoid compressing
Air flows to outside when flowing through air admission hole and helical duct, by the gap of valve body and spool, without flowing to conveying channel.
Compared with prior art, the beneficial effects of the utility model are：
The utility model between valve body or/and spool by setting helical duct so that compressed air is in helical duct
Middle formation spiral high speed air-flow, radially the powder also radial rotary flowing together in bolt is expected in rotational flow, drive to air-flow, so as to
Gradually material bolt is broken up, is avoided and is provided solely for axial compressive force impacting material bolt and causes to expect that bolt presses to obtain more tightly situation.In addition
The utility model has the advantages of simple structure, and production cost is relatively low, is very suitable for large-scale production and application.
Description of the drawings
Fig. 1 is the front schematic view of the utility model.
Fig. 2 is the side schematic view of the utility model.
Fig. 3 is the schematic diagram of spool.
Label shown in attached drawing：1st, valve body；2nd, spool；3rd, air admission hole；4th, helical duct；5th, flange；6th, conveying channel；
7th, rubber seal.
Specific embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
Embodiment 1
A kind of vacuum screw propeller, including valve body 1 and spool 2；The spool 2 includes one and runs through spool along the longitudinal direction
2 conveying channel 6, side middle part offer an annular groove, and one end offers several helical ducts 4, and the helical duct 4 one
Side is connected with the annular groove, and opposite side is connected with conveying channel 6；1 side of valve body offer for external tracheae into
Stomata 3；The valve body 1 is placed on the spool 2, and valve body 1 coordinates with spool 2 so that annular groove forms one with 1 inner wall of valve body
Cavity, the cavity are connected with affiliated air admission hole 3；When air admission hole 3 is passed through gas, gas is entered cavity by venthole and is passed through
Helical duct 4 is discharged backward.At helical duct 4,1 inner surface of valve body coordinates with 2 outer surface of spool for transition, preferably closely
With reference to only this channel of remaining helical duct, compressed air can only be flowed out from cavity by helical duct 4, flowed out to backward defeated
Expect in channel 6.
Preferably, at except cavity and helical duct 4, the spool 1 is fitted close with valve body 2, avoids gas from valve
Outside is flowed in gap between core 1 and valve body 2.Pass through epoxy resin structural adhesive, O-shaped sealing between the valve body 1 and spool 2
The modes such as circle or welding link together.
The utility model between valve body 1 and spool 2 by designing helical duct 4 so that the pressure entered by air admission hole 3
Contracting air forms spiral high speed air-flow in helical duct 4, air-flow radially rotational flow, drives powder in material bolt also together
Radial rotary flows, so as to gradually break up material bolt.In addition the aperture of original air admission hole 3 is larger, and the width of helical duct 4 compared with
Few, in the case where flow is certain, after compressed gas enters helical duct 4 by air admission hole 3, flow velocity faster, forms bigger
Kinetic energy break up material bolt.And since the front of helical duct 4 is connected with air admission hole 3, behind helical duct 4 with conveying channel 6
Connection, the compressed gas of air admission hole 3 can only from front to back be passed by helical duct 4 in conveying channel 6, improve spiral
The flow velocity of gas behind channel 4 siphons away the air of 6 front end inlet of feeding pipe, so as to the shape at 6 front end inlet of conveying channel
Into vacuum, reach the negative pressure transportation of material.
Between the spool 2 and valve body 1 be equipped with rubber seal 7, for sealing vacuum screw propeller, avoid gas from
Outside is flowed in gap between spool 2 and valve body 1.By designing rubber seal 7 between valve body 1 and spool 2, avoid pressing
Contracting air flows to outside when flowing through air admission hole 3 and helical duct 4, by the gap of valve body 1 and spool 2, defeated without flowing to
Expect channel 6.
It is described to further include the flange 5 for being respectively arranged at the valve body 1 and 2 both sides of spool.By in 2 liang of valve body 1 and spool
Side sets flange 5, and more easily the vacuum screw propeller can be mounted in existing pipeline.
Internal diameter positioned at the flange 5 of rear side tapers into from front to back.
By the way that the internal diameter of flange 5 is tapered into from front to back so that compressed air can generate the pressure of bigger to push away
It moves powder and pushes away bulk cargo bolt.
In order to which valve body 1 is allowed to be combined more secured with spool 2, can between the flange 5 of front and rear sides installation bolt into
Row is fixed.
The vacuum propeller in use, is installed to feeding by the utility model by front and rear flange 5 first
In pipeline, then air compressor is connected with air admission hole 3, air compressor squeezes into compressed air, compressed air to air admission hole 3
It is entered back into after cavity in helical duct 4, so as to form spiral-shaped air-flow, agitation expects bolt, and due in feeding
Compressed air is added in pipeline, accelerates gas flow rate below, so as to form vacuum at charging line front end inlet, is reached
The negative pressure transportation of material.
It is directed at helical duct 4, the spacing of 1 inner surface of valve body and 2 outer surface of spool, which can be less than, is equal to 5mm, allows big
Partial air-flow from helical duct 4 can only pass through and then flow to charging line.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principles of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (8)
1. a kind of vacuum screw propeller, including valve body and spool；It is characterized in that, the valve body is placed on the spool, institute
It states spool and includes the front and rear conveying channel for running through spool, the valve body is offered for the air admission hole of external tracheae；The spool
Or/and valve body one end offers several helical ducts, helical duct is connected with air admission hole；When air admission hole is passed through gas, gas
Helical duct is entered into and through by venthole to be expelled to backward in conveying channel.
2. a kind of vacuum screw propeller according to claim 1, which is characterized in that the valve body is formed with spool
Chamber, the cavity are connected with the air admission hole；The cavity is connected with the helical duct.
3. a kind of vacuum screw propeller according to claim 1, which is characterized in that the spool is matched with valve body for transition
It closes.
4. a kind of vacuum screw propeller according to claim 1, which is characterized in that further include be respectively arranged at valve body with
Flange before and after spool.
5. a kind of vacuum screw propeller according to claim 4, which is characterized in that positioned at rear side flange internal diameter from
It is tapered into after going to.
6. a kind of vacuum screw propeller according to claim 4 or 5, which is characterized in that the flange, valve body and spool
Between be equipped with sealing ring.
7. according to a kind of vacuum screw propeller of claim 1 ~ 5 any one of them, which is characterized in that the helical duct is equal
It is even to be distributed on spool or/and valve body.
8. according to a kind of vacuum screw propeller of claim 1 ~ 5 any one of them, which is characterized in that the air admission hole is spiral shell
Pit, for connecting to access compressed air with external gas-pipe thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713220.4U CN207551196U (en) | 2017-12-11 | 2017-12-11 | A kind of vacuum screw propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713220.4U CN207551196U (en) | 2017-12-11 | 2017-12-11 | A kind of vacuum screw propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207551196U true CN207551196U (en) | 2018-06-29 |
Family
ID=62666543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721713220.4U Expired - Fee Related CN207551196U (en) | 2017-12-11 | 2017-12-11 | A kind of vacuum screw propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207551196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863026A (en) * | 2018-07-17 | 2018-11-23 | 东旭科技集团有限公司 | Gas supply device and float glass tin bath |
-
2017
- 2017-12-11 CN CN201721713220.4U patent/CN207551196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863026A (en) * | 2018-07-17 | 2018-11-23 | 东旭科技集团有限公司 | Gas supply device and float glass tin bath |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20211211 |