CN207001382U - A kind of dynamic fluid seals device and grain powder piece-rate system - Google Patents
A kind of dynamic fluid seals device and grain powder piece-rate system Download PDFInfo
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- CN207001382U CN207001382U CN201621067213.7U CN201621067213U CN207001382U CN 207001382 U CN207001382 U CN 207001382U CN 201621067213 U CN201621067213 U CN 201621067213U CN 207001382 U CN207001382 U CN 207001382U
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- 239000000843 powder Substances 0.000 title claims abstract description 48
- 239000012530 fluid Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 113
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000008859 change Effects 0.000 claims abstract description 8
- 230000000052 comparative effect Effects 0.000 claims abstract description 8
- 239000008188 pellet Substances 0.000 claims description 21
- 230000005855 radiation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000011344 liquid material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A kind of dynamic fluid seals device and grain powder piece-rate system is the utility model is related to, dynamic fluid seals device includes：Cylinder, material inlet and material outlet are provided with the cylinder, Charge level measurer, feed controller and inlet control valve, the Charge level measurer monitors actual material position in the cylinder, actual material position value is sent to the feed controller, the feed controller is by the actual material position value compared with the predetermined value, and valve opening degree instruction is sent to the inlet control valve according to comparative result, the inlet control valve carries out aperture control according to the instruction of the feed controller to valve, so as to change the flow of charging, by Level control in the predetermined value to realize the effect of sealing, so as to effectively, safety, reliably eliminate air pressure unstable phenomenon, control maintenance cost simultaneously.
Description
Technical field
Dynamic fluid seals device and grain powder piece-rate system are the utility model is related to, available for the institute such as medicine, chemical industry, food
The occasion in need for carrying out grain powder separation, it can also be used to the industrial and mineral of grain powder pipelined.
Background technology
In the industries such as chemical industry, medicine, powder can be contained in particulate material, the presence of powder can influence the product quality of pellet,
It thus generally may require that and the content of powder be limited in an admissible scope, such as：Usually required that in LDPE pellet containing powder
Amount is less than or equal to 50PPM, and powder containing quantity may require that smaller, sometimes 20PPM in PC pellet.With the PE pellets of power cable
Exemplified by, if the powder containing quantity in pellet is higher, the insulating properties for the cable worked it out is with regard to bad.So pellet shedding be one must
Need solve the problems, such as.
In order to solve the problems, such as pellet shedding, it usually needs install additional grain powder clarifier (or grain powder separator, bugduster,
Trap or pellet clarifier etc., often referred to simply as separator) device, however, which kind of device installed additional, as long as installing additional for removing
The equipment of powder, it is possible to produce the phenomenon of air pressure unstability.So-called air pressure unstability, refer to internal pressure and separator due to separator
External pressure does not wait and caused operation unstable phenomenon, i.e. separator exit side/pan feeding side have pressure difference with separator interior, Jin Erying
The stable operation of corresponding material feeding/feeder apparatus is rung, the feeding equipment that exit side is resulted even in when serious can not normal work.
As can be seen here, once there is air pressure unstability, the normal operation of whole system can be influenceed, thus needs to increase a set of pressure balance dress
Put, improve destabilization problems caused by pressure difference.
Traditional pressure equaliser is typically by the way of wind so that air pressure inside is controlled in such as -50 millimeters of water
Post, but this negative pressure can cause to discharge reception device metering units drift or the problems such as error.
How effectively, reliably and securely thus eliminate air pressure unstable phenomenon is asking of further solving of pellet shedding
Topic.
Utility model content
In order to solve the above problems, the utility model provides a kind of dynamic fluid seals device.The device not only can be with
The problem of realizing pellet shedding, while air pressure unstability can be overcome.Therefore, there is effective, economic effect using the present apparatus, and
And the safe and reliable, Maintenance free in pellet shedding.
Dynamic fluid seals device of the present utility model includes：Cylinder, material inlet and material are provided with the cylinder
Outlet, Charge level measurer, feed controller and inlet control valve, the Charge level measurer monitor actual material position in the cylinder,
Actual material position value is sent to the feed controller, the feed controller carries out the actual material position value and the predetermined value
Compare, and valve opening degree instruction is sent to the inlet control valve according to comparative result, the inlet control valve enters according to
Expect that the instruction of controller carries out aperture control to valve, so as to change the flow of charging, by Level control in the predetermined value.
In an embodiment of the present utility model, the height of the material inlet in the vertical direction is higher than the thing
Material outlet.
In an embodiment of the present utility model, the predetermined value is a dynamic value, and the value can be more than or wait
In the material position minimum value for realizing sealing effectiveness.
In an embodiment of the present utility model, the cylinder be shaped as cone, cylinder, spheroid, cuboid,
Cube, conveyor screw or gengon.
In an embodiment of the present utility model, the inlet control valve is rotary valve or push-pull valve.
In an embodiment of the present utility model, the Charge level measurer is tuning fork, ultrasonic wave or radiation transducers.
Grain powder piece-rate system of the present utility model includes：Grain powder separator, and dynamic fluid described in the utility model are close
Seal apparatus.
In an embodiment of the present utility model, the grain powder separator Pellet exit and the dynamic fluid seals
Device material inlet seal connects.
In an embodiment of the present utility model, the grain powder piece-rate system includes multiple dynamic fluid seals
Device serial or parallel connection.
In an embodiment of the present utility model, grain powder piece-rate system of the present utility model includes：Cylinder, material position inspection
Device, feed controller, inlet control valve and grain powder separator are surveyed, material inlet and material outlet are provided with the cylinder；Its
Described in inlet control valve be connected with the grain powder separator charging aperture, the grain powder separator Pellet exit and the cylinder thing
Material import is connected, wherein the Charge level measurer monitors actual material position in the cylinder, by actual material position value be sent to it is described enter
Expect controller, the feed controller by the actual material position value compared with the predetermined value, and according to comparative result to institute
State inlet control valve and send valve opening degree instruction, the inlet control valve is carried out according to the instruction of the feed controller to valve
Aperture controls, so as to change the flow of charging, by the Level control in the cylinder in the predetermined value.
In an embodiment of the present utility model, dynamic fluid seals device of the present utility model, including：Material enters
Mouth, cylinder, Charge level measurer, material outlet, inlet control valve and feed controller, by flowing into or from for control material,
Make formation dough block in cylinder, and the material position of material agglomerate is maintained at a predetermined value to realize sealing.
The material agglomerate that a predetermined value is maintained in cylinder produces resistance to the gas at the both ends of dynamic fluid seals device,
So as to realize sealing.
Charge level measurer monitors actual material position, and actual material position value is sent into feed controller, and feed controller is by the reality
Comparative result is sent to inlet control valve, charging control by border material position value compared with the predetermined value, by control signal
Valve carries out aperture control according to the instruction of control signal to valve, so as to change the flow of material, by Level control described pre-
Definite value.
The predetermined value is set according to the treating capacity of material properties, mass flow, the internal pressure value of separator or separator
It is fixed.
The predetermined value is a dynamic value, and the value, which can be more than or equal to, realizes that the material position of sealing effectiveness is minimum predetermined
Value.
Material agglomerate can form arbitrary shape according to the shape of cylinder, such as cone, cylinder, spheroid, cube, conveyor screw
Or more variants；Material can be a powder or liquid material.
The dynamic fluid seals device can be with the multiple uses of serial or parallel connection.
Inlet control valve is arranged on entrance or the outlet of separator, and inlet control valve can use rotary valve or plate
Valve.
In the utility model, material flows into cylinder from material inlet, from material outlet outflow tube, when influx is more than stream
During output, the formation dough block in cylinder, and material position a is generated, after Charge level measurer monitors material position a, the value is sent
To controller, comparative result compared with predetermined value A values, is sent to control valve by a values by controller by control signal,
Control valve carries out aperture control according to the instruction of control signal to valve, so as to change the flow of material, by Level control pre-
Definite value A.
Predetermined value A size is carried out according to the treating capacity of material properties, mass flow, the internal pressure value of separator or separator
Setting, to realize sealing effectiveness.
Material agglomerate can be pellet or liquid material etc., so of the present utility model dynamic according to the property of material
State fluid seal apparatus may not only be applied to a powder and can also be used for other materials such as liquid material.
Material agglomerate can form arbitrary shape according to the shape of cylinder, such as cone, cylinder, spheroid, cube, rectangular
Body, square centrum, triangle body, triangular pyramids, polygon centrum, conveyor screw or more variants etc..Preferably cone, cylinder.
Control valve can also be arranged on the outlet of separator installed in the entrance of separator, or close installed in dynamic fluid
The outlet of seal apparatus, wherein being preferred with the entrance installed in separator.Rotary valve can be specifically used, push-pull valve also can be selected, or
Other kinds of control valve.
Charge level measurer, can be tuning fork, ultrasonic wave, ray, it can also be used by material performance and preference
His any sensor that can measure material position.Number can use one, can also use more, select according to the actual requirements.
Breather valve can also be set on cylinder, and the breather valve helps out, and is set using the common breather valve in this area
It is standby.
According to field condition, if a dynamic fluid seals device is inadequate, can also connect one or more dynamic fluids
Sealing device, or the mode such as one or more dynamic fluid seals devices in parallel are applied in combination.
The utility model by the material of dynamic flowing come the operation of hermetic separator, so as to reach the operation of separator with
Feed and the non-interfering purpose of rewinding, and due to the material to seal it is microcosmic on be dynamic flow, so will not shadow
Ring flowing in and out for grain powder.The characteristic causes dynamic fluid seals device without additional maintenance, can effectively reduce maintenance into
This.
Dynamic fluid seals apparatus structure is simple, and manufacture, assembling, installation, debugging etc. are all very simple, without special material,
The useful material of institute is easy to buy.
Specifically, dynamic fluid seals device operation principle of the present utility model is as follows：
Pellet material is entered by material inlet, make material start when enter it is more, go out and must lack so that cylinder material position it is continuous
Rapid increase simultaneously reaches setting material position A, under Charge level measurer, control valve, the synergy of controller, makes material position dynamically steady
Predetermined setting value A is scheduled on, stream of the mass flow of cylinder with flowing out material by material outlet is at this moment entered by material inlet
Measure identical, i.e. the material total amount in cylinder maintains dynamic equilibrium, what the material of cylinder always flowed, is flowed into constantly
With outflow state, new old go out of coming in.Any one moment, the weight of material being under A material positions and volume in cylinder
A definite value (may slightly fluctuate) is maintained essentially in, the material group of this objective reality, is exactly a material from macroscopically seeing
Agglomerate, this material agglomerate can play sealing or closed effect.From microcosmic, the material agglomerate is that dynamic updates, grain
Material has into having, and is metabolic.
Although this material agglomerate is present in the pipeline that material flows into, it appears that pipeline has been blocked, material can not be by seemingly,
But because the material in this agglomerate is that dynamic updates, and：
Q inflows=Q outflows
Therefore, the flowing of material is unaffected.
Therefore, the presence of the material agglomerate can produce resistance to the gas at dynamic fluid seals device both ends, so as to play
Sealing or closed effect to gas.
If dynamic fluid seals device is arranged on to the exit side of grain powder separator, it is possible to realize that grain powder is unimpeded,
And the internal pressure of grain powder separator will not be influenceed by exit side pressure, the external pressure for the survey that discharges also will not be by grain powder
The influence of separator internal pressure, so as to ensure the strong jamming that is not pressurized of a powder separator and exit side associated equipment, reach two pressures
It is strong and weak related, make respective independent operating, it is non-interference.So as to effectively, reliably and securely eliminate the gas during pellet shedding
Press unstable phenomenon.
Using dynamic fluid seals device of the present utility model and grain powder piece-rate system, it is possible to achieve：Grain powder is unobstructed, and
The internal pressure of grain powder separator will not be influenceed by exit side pressure, and the external pressure of exit side also will not be by grain powder point
From the influence of device internal pressure, so as to ensure that the exit side associated equipment of a powder separator is not pressurized strong jamming, it is weak to reach two pressure
Correlation, make respective independent operating, it is non-interference, so as to the problem of effectively and reliably improving air pressure unstability.
Brief description of the drawings
Fig. 1 is the utility model grain powder piece-rate system structural representation.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model
The mode of applying is not limited only to this.
Embodiment 1
As shown in Figure 1, the dynamic fluid seals device in the present embodiment includes (shown in such as in the range of dotted line)：Cylinder
2, material inlet 1 and material outlet 4, Charge level measurer 3, feed controller 6 and inlet control valve 5 are provided with the cylinder 2,
The Charge level measurer 3 monitors actual material position in the cylinder 2, and actual material position value is sent into the feed controller 6, described
Feed controller 6 by the actual material position value compared with the predetermined value, and according to comparative result to the inlet control valve 5
Valve opening degree instruction is sent, the inlet control valve 5 carries out aperture control according to the instruction of the feed controller to valve, from
And change the flow of charging, by Level control in the predetermined value.Wherein described predetermined value is a dynamic value, and the value can be big
In or equal to realizing the material position minimum value of sealing effectiveness, the inlet control valve 5 is rotary valve or push-pull valve, the material-level measure
Device 3 is tuning fork, ultrasonic wave or radiation transducers.
Pellet is discharged from the cylinder 2 of the thermally coupled flow fluid seal apparatus of material inlet 1, then through material outlet 4.If enter
More, what is gone out lacks, and the accumulation of pellet will be formed in cylinder 2, that is, forms dynamic material agglomerate.It is on the material agglomerate is microcosmic
The material of state flowing, is then macroscopically metastable pellet agglomerate.It is established in Flow of Goods and Materials, and flow of fluid disappears after terminating
Lose.In order to produce resistance to the gas at dynamic fluid seals device both ends, and then when dynamic fluid seals device separates with grain powder
When device is used in combination, the sealing to separator is realized so that the pressure of separator does not interfere with the operation of miscellaneous equipment, just
The material position of material agglomerate must be maintained to a predetermined value A.The sizes of the A values is according to material properties, mass flow, separator
Internal pressure value or the treating capacity of separator are set.
Better, but the too conference of A values increases cost and dust to the bigger then sealing of the A values of material agglomerate；And A values are too small
Effective sealing can not be realized and material agglomerate is difficult to control.Therefore predetermined value A can be set as dynamic value according to demand, and it takes
Value can be more than or equal to the material level minimum predetermined value for realizing sealing effectiveness, and the more big then sealing effectiveness of predetermined value is better, and pre-
The smaller then cost of definite value is lower.In the process of running, A values, such as the A values of material agglomerate can be flexibly selected according to actual conditions
Such as 0.2 meter~1.0 meters can be taken, the span not only can be very good to ensure sealing effectiveness, and cost is relatively
It is low.
Embodiment 2
As shown in Figure 1, the grain powder piece-rate system of the present embodiment includes：Cylinder 2, material is provided with the cylinder 2 and is entered
Mouth 1 and material outlet 4, Charge level measurer 3, feed controller 6, inlet control valve 5, and grain powder separator 9.Wherein described charging
Control valve 5 is connected with the charging aperture of grain powder separator 9, the Pellet exit of grain powder separator 9 and the material inlet of cylinder 2
1 is connected, wherein the Charge level measurer 3 monitors actual material position in the cylinder 2, actual material position value is sent into the charging
Controller 6, the feed controller 6 by the actual material position value compared with the predetermined value, and according to comparative result to institute
State inlet control valve 5 and send valve opening degree instruction, the inlet control valve 5 is according to the instruction of the feed controller 6 to valve
Aperture control is carried out, so as to change the flow of charging, by the Level control in the cylinder 2 in the predetermined value.
The application receives various modifications and interchangeable form, and specific embodiment is in the accompanying drawings by means of implementing
Example come show and the application be described in detail.But the application is not intended to be limited to disclosed particular form.On the contrary,
The application is intended to include all modifications form, equivalent and the refill in the range of the application, and scope of the present application is by appended
Claim and its legal equivalents limit.
Claims (8)
1. a kind of dynamic fluid seals device, it is characterised in that the dynamic fluid seals device includes：
Cylinder, material inlet and material outlet are provided with the cylinder,
Charge level measurer,
Feed controller and inlet control valve,
The Charge level measurer monitors actual material position in the cylinder, and actual material position value is sent into the feed controller, institute
Feed controller is stated to send the actual material position value to the inlet control valve compared with predetermined value, and according to comparative result
Valve opening instruct, the inlet control valve according to the feed controller instruction adjust open yardstick, so as to change into
The flow of material, by Level control in the predetermined value.
2. dynamic fluid seals device according to claim 1, wherein the height of the material inlet in the vertical direction
Higher than the material outlet.
3. dynamic fluid seals device according to claim 1 or 2, wherein the predetermined value is a dynamic value, the value
More than or equal to the material position minimum value for realizing sealing effectiveness.
4. dynamic fluid seals device according to claim 1 or 2, wherein the cylinder be shaped as cone, cylinder,
Spheroid, cuboid, cube, conveyor screw or gengon.
5. dynamic fluid seals device according to claim 1 or 2, wherein the inlet control valve is rotary valve or plate
Valve.
6. dynamic fluid seals device according to claim 1 or 2, wherein the Charge level measurer is tuning fork, ultrasonic wave
Or radiation transducers.
A 7. a kind of powder piece-rate system, it is characterised in that the grain powder piece-rate system includes：
Grain powder separator, and
Dynamic fluid seals device according to any one of claim 1 to 6,
Wherein described grain powder separator Pellet exit connects with the dynamic fluid seals device material inlet.
8. according to claim 7 powder piece-rate system, wherein the grain powder piece-rate system includes multiple dynamic streams
Body sealing device serial or parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067213.7U CN207001382U (en) | 2016-09-21 | 2016-09-21 | A kind of dynamic fluid seals device and grain powder piece-rate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067213.7U CN207001382U (en) | 2016-09-21 | 2016-09-21 | A kind of dynamic fluid seals device and grain powder piece-rate system |
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| Publication Number | Publication Date |
|---|---|
| CN207001382U true CN207001382U (en) | 2018-02-13 |
Family
ID=61427612
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| CN201621067213.7U Active CN207001382U (en) | 2016-09-21 | 2016-09-21 | A kind of dynamic fluid seals device and grain powder piece-rate system |
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| CN (1) | CN207001382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106219094A (en) * | 2016-09-21 | 2016-12-14 | 刘锡云 | A kind of dynamic fluid seals device and implementation method |
-
2016
- 2016-09-21 CN CN201621067213.7U patent/CN207001382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106219094A (en) * | 2016-09-21 | 2016-12-14 | 刘锡云 | A kind of dynamic fluid seals device and implementation method |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231017 Address after: 102400 No. 8, Da Dao, Fangshan District, Beijing Patentee after: Huachangfeng Equipment Inc. Address before: 1606, Canaan Building, Youwai Street, Fengtai District, Beijing, 100069 Patentee before: Liu Xiyun |