CN206901345U - A kind of metering device containing air sac sealing structure - Google Patents
A kind of metering device containing air sac sealing structure Download PDFInfo
- Publication number
- CN206901345U CN206901345U CN201720364911.1U CN201720364911U CN206901345U CN 206901345 U CN206901345 U CN 206901345U CN 201720364911 U CN201720364911 U CN 201720364911U CN 206901345 U CN206901345 U CN 206901345U
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- China
- Prior art keywords
- pipeline
- butterfly valve
- air bag
- air
- measuring tank
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Abstract
The utility model provides a kind of metering device containing air sac sealing structure, including measuring tank, with measuring tank connected metering screw, it is connected below measuring tank by pipeline with reactor, it is characterized in that, the pipeline that measuring tank is connected with reactor is provided with upper, lower two butterfly valves, air sac sealing structure is set between two butterfly valves, the air sac sealing structure is that an air bag sleeve is fixed on the pipeline being connected with lower section butterfly valve, air bag sleeve diameter is more than the outer diameter tube being connected with top butterfly valve, the support of one annular air-pocket is fixed in air bag sleeve lining, the pipeline being connected with top butterfly valve is injected in annular air-pocket, pipeline does not contact with air bag when air bag is non-aerating, after airbag aeration, annular air-pocket holds the pipeline being connected with top butterfly valve tightly, make, the seal for pipe joints of lower butterfly valve connection is connected, air bag deflation makes, the pipeline of lower butterfly valve connection unclamps.Advantage is that blanking exports circumferencial direction elasticity during material transferring and held tightly, avoids dust from revealing, departs from metering process, measuring accuracy is high.
Description
Technical field
It the utility model is related to the powder material processing and application of chemical industry, food and pharmaceutical field.To ensure various materials
The accuracy of formula, this needs high-precision metering device.Metering system requirement leaks in no dust or escaping gas
On the premise of, measuring accuracy is improved as far as possible, to meet the required precision of formula.
Background technology
The metering process of powder faces the contradiction of system connection seal and measurement accuracy all the time.Should be in weighing component
It is connected between upstream and downstream process equipment interface using physical seal, avoids dust from revealing, causes this connection for meter again
The minimum of accuracy of measurement interference effect reduction.The attachment structure commonly used in commercial Application is flexible connection, such as uses thin-walled flexible glue
Cylinder or tight weave bag carry out airtight connection to equipment interface so that dust is during entering measuring tank and leaving measuring tank
Airborne dust leakage does not occur.Conventional powder material metering system is as shown in Figure 1.
The upper and lower port of measuring tank 42 and 12 is connected by being flexible coupling with upstream metering screw 1 and downstream reaction kettle 8 respectively,
So that metering screw and reactor produce mechanics influence as small as possible to measuring tank.
Material enters measuring tank 4 by metering screw 1, and screw speed is adjustable, controls the speed of charging.Weighing module 5
The weight of measuring tank 4 is perceived, is detected by external controller for measuring tank weight change, reaches the weight of default
During value, stop screw feeding, close charging butterfly valve.Complete a metering process.Later on blanking butterfly valve, metering
Discharge of materials realizes metered charge process in confined conditions into reactor in tank.
Prior art has the drawback that：
A. when measuring tank downstream process has pressure, being flexible coupling to use；
Influence to eradicate when b. needing further to improve measuring accuracy requirement, caused by being flexible coupling.
Wherein first problem is the most serious, because too high pressure means that what is thickeied is flexible coupling, this is directly resulted in
The reduction of measuring accuracy.
The content of the invention
To solve the problems, such as that foregoing metering device is present, the utility model provides a kind of metering containing air sac sealing structure
Device, including measuring tank, with measuring tank connected metering screw, it is connected below measuring tank by pipeline with reactor, measuring tank
The pipeline being connected with reactor is provided with upper and lower two butterfly valves, and air sac sealing structure, the air sac sealing are set between two butterfly valves
Structure is that an air bag sleeve is fixed on the pipeline being connected with lower section butterfly valve, and air bag sleeve diameter is more than what is be connected with top butterfly valve
Outer diameter tube, annular air-pocket support are fixed in air bag sleeve lining, and the pipeline being connected with top butterfly valve is injected in annular air-pocket, air bag
Pipeline does not contact with air bag when non-aerating, and after airbag aeration, annular air-pocket holds the pipeline being connected with top butterfly valve tightly, makes upper and lower
The seal for pipe joints of butterfly valve connection is connected, and air bag deflation unclamps the pipeline of upper and lower butterfly valve connection.
Held tightly the utility model has the advantages that exporting circumferencial direction elasticity during material transferring to blanking, avoid powder
The leakage of dirt and escaping gas.Air bag is then discharged in metering process, the physics completely abolished between two interface units connects
Connect so that measuring accuracy is improved.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of existing metering device；
Accompanying drawing 2 is the structural representation of the utility model metering device；
Accompanying drawing 3 is airbag structure close-up schematic view；
Label declaration in figure：
1- metering screws；2- chargings are flexible coupling；3- feeds butterfly valve；4- measuring tanks；5- Weighing modules；Blanking above 6-
Butterfly valve；7- inflatable bladders；Blanking butterfly valve below 8-；9- reactors；The pipeline that 10- is connected with top butterfly valve 6；11- Air sac covers
Cylinder；12- blankings are flexible coupling.
Embodiment
Refer to shown in accompanying drawing 2, the utility model includes measuring tank 4, the metering screw 1 being connected with measuring tank 4, measuring tank
4 lower sections are connected by pipeline with reactor 8, and the pipeline that measuring tank 4 is connected with reactor 8 is provided with upper and lower two butterfly valves 6,8, and two
Air sac sealing structure is set between individual butterfly valve, referred to shown in accompanying drawing 3, the air sac sealing structure is connected with lower section butterfly valve 8
An air bag sleeve 11 is fixed on the pipeline connect, the internal diameter of air bag sleeve 11 is more than the external diameter of pipeline 10 being connected with top butterfly valve 6, a ring
The support of shape air bag 7 is fixed in the inwall of air bag sleeve 11, and the pipeline 10 being connected with top butterfly valve 6 is injected in annular air-pocket 7, and air bag 7 does not fill
Pipeline 10 does not contact with air bag 7 during gas, and after air bag 7 is inflated, annular air-pocket 7 holds the pipeline 10 being connected with top butterfly valve 6 tightly, makes
The seal for pipe joints of upper and lower butterfly valve connection is connected, and air bag 7, which is deflated, unclamps the pipeline of the upper and lower connection of butterfly valve 6,8.
Air bag 7 is rubber, and its top is the solid rubber containing valve, and valve is fixed through air bag sleeve 11.
The discharging opening of metering screw 1 of the present utility model connects one and is flexible coupling 2（Thin-walled rubber cylinder or cloth bag）, it is flexible coupling
2 lower ends and the airtight connection suitable for reading of butterfly valve 3.Butterfly valve 3 can be opened and closed the charging aperture of measuring tank 4.The weight support of measuring tank 4 is more
On individual loading component 5, loading component 5 is connected on COMPUTER DETECTION control unit by circuit（Figure omits）.The feed opening of measuring tank 4
There are a butterfly valve 6, control material discharge in place.It is inflatable bladders 7 to be looped around around the lower end cylinder of butterfly valve 6, by air bag 7
Inflation can make air bag from peripheral direction radially hold tightly butterfly valve 6 export, formed sealing.Drain air bag 7 gas when, air bag 7 with
The outlet of butterfly valve 6 disengages.Interface is connected as a single entity with air bag 7 on butterfly valve 8, and lower outlet is connected as a single entity with reactor.Butterfly valve 8
Gas leak in reactor 9 can be prevented during closing.
The course of work of the present utility model is：
A. metering prepares
Butterfly valve 6 and 8 is closed, and air bag 7 is vented, and measuring tank 4 and reactor are disconnected；
B. metering process
Butterfly valve 3 is opened, and metering screw 1 starts, to the feeding of measuring tank 4.Computer is increased by the sense weight of loading component 5
Dosage；
C. metering terminates
Work as weight gain（Net weight increment）The metering desired value being previously set is reached, closes material inlet valve 3 and metering spiral shell
Bar 1；
D. discharges material
Inflated to air bag 7, opened butterfly valve 6 and 8, discharge of materials in measuring tank 4 into reactor 9.
Claims (1)
1. a kind of metering device containing air sac sealing structure, including measuring tank, with measuring tank connected metering screw, measuring tank
Lower section is connected by pipeline with reactor, it is characterised in that the pipeline that measuring tank is connected with reactor is provided with upper and lower two butterflies
Valve, air sac sealing structure is set between two butterfly valves, and the air sac sealing structure is consolidated on pipeline be connected with lower section butterfly valve
A fixed air bag sleeve, air bag sleeve diameter are more than the outer diameter tube being connected with top butterfly valve, and annular air-pocket support is fixed in Air sac cover
Cylinder inwall, the pipeline being connected with top butterfly valve are injected in annular air-pocket, and pipeline does not contact with air bag when air bag is non-aerating, and air bag fills
After gas, annular air-pocket holds the pipeline being connected with top butterfly valve tightly, connects the seal for pipe joints of upper and lower butterfly valve connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720364911.1U CN206901345U (en) | 2017-04-10 | 2017-04-10 | A kind of metering device containing air sac sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720364911.1U CN206901345U (en) | 2017-04-10 | 2017-04-10 | A kind of metering device containing air sac sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206901345U true CN206901345U (en) | 2018-01-19 |
Family
ID=61290012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720364911.1U Active CN206901345U (en) | 2017-04-10 | 2017-04-10 | A kind of metering device containing air sac sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206901345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365805A (en) * | 2018-11-23 | 2019-02-22 | 赣州博立科技有限公司 | A kind of tungsten powder, tungsten carbide powder, anhydrous wolframic acid powder connecting device |
| CN109502366A (en) * | 2018-09-29 | 2019-03-22 | 嘉兴锦浩环保科技有限公司 | A kind of hold-down mechanism in interior basket material-pouring device |
-
2017
- 2017-04-10 CN CN201720364911.1U patent/CN206901345U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502366A (en) * | 2018-09-29 | 2019-03-22 | 嘉兴锦浩环保科技有限公司 | A kind of hold-down mechanism in interior basket material-pouring device |
| CN109365805A (en) * | 2018-11-23 | 2019-02-22 | 赣州博立科技有限公司 | A kind of tungsten powder, tungsten carbide powder, anhydrous wolframic acid powder connecting device |
| CN109365805B (en) * | 2018-11-23 | 2023-12-26 | 赣州博立科技有限公司 | Tungsten powder, tungsten carbide powder, tungsten trioxide powder are with device that plugs into |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A metering device with airbag sealing structure Effective date of registration: 20220713 Granted publication date: 20180119 Pledgee: Industrial Bank Co.,Ltd. Shanghai South thebund sub branch Pledgor: SHANGHAI WEZER MACHINERY MANUFACTURE CO.,LTD. Registration number: Y2022310000126 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230714 Granted publication date: 20180119 Pledgee: Industrial Bank Co.,Ltd. Shanghai South thebund sub branch Pledgor: SHANGHAI WEZER MACHINERY MANUFACTURE CO.,LTD. Registration number: Y2022310000126 |