CN101872200A - Flow control device - Google Patents
Flow control device Download PDFInfo
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- CN101872200A CN101872200A CN 201010218486 CN201010218486A CN101872200A CN 101872200 A CN101872200 A CN 101872200A CN 201010218486 CN201010218486 CN 201010218486 CN 201010218486 A CN201010218486 A CN 201010218486A CN 101872200 A CN101872200 A CN 101872200A
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- valve
- pipeline
- test tank
- controller
- volume pump
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Abstract
The invention relates to a flow control device, comprising a metering tank, wherein the metering tank is connected with a metering pump via a pipeline; the metering pump is connected with a pouring valve via a pipeline; the pouring valve is connected with the metering tank via a circulating tube; the metering tank is provided with an air inlet pipe and an air outlet pipe; the air inlet pipe is provided with an air intake valve and the air outlet pipe is provided with an air outlet valve; the air inlet pipe is connected with an air source; the metering tank is connected with a pressure sensor via a pipeline; the pressure sensor is in communicated connection with a pressure controller; the pressure controller is in communicated connection with the air inlet and outlet valves; a mass flow meter is arranged on the pipeline between the metering pump and the pouring valve; the mass flow meter is in communicated connection with a rotary speed controller; the rotary speed controller is in communicated connection with the metering pump; the circulating tube is provided with a shutoff valve; the pouring valve is in communicated connection with a shutoff controller; and the shutoff controller is in communicated connection with the shutoff valve. The invention can accurately control the flow of fluid materials.
Description
Technical field
The present invention relates to the technical field of metering outfit, refer more particularly to a kind of volume control device.
Background technology
Volume control device is the device that is used for the Control Flow size.Aborning, the precision of flow control directly has influence on the precision of product.The structure of existing volume control device is: comprise test tank, test tank is connected with volume pump by pipeline, volume pump is connected with casting valve by pipeline, casting valve is connected with test tank by circulation pipe, described casting valve comprises the cylindrical shell of a hollow, the housing sidepiece is provided with charging aperture, one end of housing is provided with discharging opening, the other end of housing is provided with circulation port, the inside of housing is provided with the cast bar, and when cast bar expanding-contracting action, charging aperture is connected with circulation port or discharging opening respectively, described discharge nozzle is connected with the charging aperture of casting valve, and described circulation pipe is connected with the circulation port of casting valve.
The principle of work of existing volume control device is: in nonproductive period, conveying by volume pump, material in test tank enters in the casting valve by pipeline, cast bar in the casting valve is in the state of stretching out at this moment, material enters test tank after the circulation port of casting valve enters circulation pipe, material is in recurrent state; In production period, by the conveying and the metering of volume pump, the material in test tank enters in the casting valve by pipeline, and the cast bar in this moment casting valve is in retracted mode, and material enters extruder after the discharging opening of casting valve flows out.Its measuring principle is: the purpose that reaches the control mass flow by the rotating speed of control volume pump.
The shortcoming of existing volume control device is: because the meeting respective change when charging or discharging of the pressure in the test tank, when the pressure in the test tank is big, at equal volume pump rotating speed with in the time, the flow of material is inevitable bigger, pressure in test tank hour, at equal volume pump rotating speed with in the time, the flow of material is inevitable less, thereby causes the metering of volume pump inaccurate; Be not closed completely owing to casting valve can cause when producing in addition, thereby cause partial material from circulation pipe, to be back to test tank, thereby cause the metering of volume pump inaccurate, so the measuring accuracy of this volume control device is not high.
Summary of the invention
Technical matters to be solved by this invention is: the pressure stability in a kind of test tank is provided, and can prevents feed back, thus the volume control device that measuring accuracy is improved.
For addressing the above problem, the technical solution used in the present invention is: volume control device, comprise test tank, test tank is connected with volume pump by pipeline, volume pump is connected with casting valve by pipeline, casting valve is connected with test tank by circulation pipe, test tank is provided with draft tube and escape pipe, described draft tube is provided with gas admittance valve, described escape pipe is provided with air outlet valve, described draft tube is connected with source of the gas, test tank is connected with pressure transducer by pipeline, and pressure transducer is connected with the pressure controller communication, and communication is connected pressure controller with air outlet valve with gas admittance valve, pipeline between described volume pump and the casting valve is provided with mass flowmeter, described mass flowmeter communicates with rotational speed governor and is connected, and described rotational speed governor is connected with the volume pump communication, and described circulation pipe is provided with intercepting valve, described casting valve is connected with the controller communication of damming, and the described controller that dams is connected with the intercepting valve communication.
Described casting valve comprises the cylindrical shell of a hollow, the housing sidepiece is provided with charging aperture, one end of housing is provided with discharging opening, the other end of housing is provided with circulation port, the inside of housing is provided with the cast bar, when cast bar expanding-contracting action, charging aperture is connected with circulation port or discharging opening respectively, and described circulation pipe is connected with the circulation port of casting valve.
The invention has the beneficial effects as follows: described volume control device can make the pressure in the test tank be in the stable scope, makes at equal volume pump rotating speed with in the time, and the flow of material is more stable, thereby has improved measuring accuracy; Also the pipeline between volume pump and the casting valve is provided with mass flowmeter in addition, can detect in real time at linear flow rate, and can regulate the rotating speed of volume pump by rotational speed governor according to the variation of flow, make the rotating speed of flow and volume pump be in relative balance state, further improved measuring accuracy; Be provided with intercepting valve in addition on circulation pipe, intercepting valve and casting valve are realized synchronization action by the controller that dams, in production period, and in the time of the casting valve withdrawal, the close synchronously intercepting valve, thus solving the backflow phenomenon of material, a step has been improved measuring accuracy again.
Description of drawings
Fig. 1 is the structural representation of volume control device of the present invention;
Among the figure: 1, test tank, 2, volume pump, 3, casting valve, 31, housing, 32, charging aperture, 33, discharging opening, 34, circulation port, 35, the cast bar, 4, circulation pipe, 5, draft tube, 6, escape pipe, 7, gas admittance valve, 8, air outlet valve, 9, source of the gas, 10, pressure transducer, 11, pressure controller, 12, mass flowmeter, 13, rotational speed governor, 14, intercepting valve, 15, controller dams.
Embodiment
Below in conjunction with accompanying drawing volume control device of the present invention is described in further detail.
As shown in Figure 1, volume control device, comprise test tank 1, test tank 1 is connected with volume pump 2 by pipeline, volume pump 2 is connected with casting valve 3 by pipeline, casting valve 3 is connected with test tank 1 by circulation pipe 4, described casting valve 3 comprises the cylindrical shell 31 of a hollow, housing 31 sidepieces are provided with charging aperture 32, one end of housing 31 is provided with discharging opening 33, the other end of housing 31 is provided with circulation port 34, the inside of housing 31 is provided with cast bar 35, when cast bar 35 expanding-contracting actions, charging aperture 32 is connected with circulation port 34 or discharging opening 33 respectively, described circulation pipe 4 is connected with the circulation port 34 of casting valve 3, test tank 1 is provided with draft tube 5 and escape pipe 6, described draft tube 5 is provided with gas admittance valve 7, described escape pipe 6 is provided with air outlet valve 8, described draft tube 5 is connected with source of the gas 9, test tank 1 is connected with pressure transducer 10 by pipeline, pressure transducer 10 is connected with pressure controller 11 communications, 8 communications are connected pressure controller 11 with air outlet valve with gas admittance valve 7, pipeline between described volume pump 2 and the casting valve 3 is provided with mass flowmeter 12, described mass flowmeter 12 communicates with rotational speed governor 13 and is connected, described rotational speed governor 13 is connected with volume pump 2 communications, described circulation pipe 4 is provided with intercepting valve 14, described casting valve 3 is connected with controller 15 communications of damming, and the described controller 15 that dams is connected with intercepting valve 14 communications.
Principle of work of the present invention is: the pressure condition in the pressure transducer 10 real-time monitoring and metering jars 1, when the pressure in the test tank 1 surpasses setting value, pressure transducer 10 transfers signals in the pressure controller 11, pressure controller 11 control air outlet valves 8 are opened, gas in the test tank 1 is discharged from escape pipe 6, thereby the pressure in the test tank 1 is reduced; When the pressure in the test tank 1 is lower than setting value, pressure transducer 10 transfers signals in the pressure controller 11, pressure controller 11 control gas admittance valves 7 are opened, and source of the gas 9 pours gas in the test tank 1 through draft tube 5, thereby the pressure in the test tank 1 is raise.Thereby the pressure in the test tank 1 is in the stable scope, makes at equal volume pump rotating speed with in the time, the flow of material is more stable, has improved measuring accuracy; Also the pipeline between volume pump 2 and the casting valve 3 is provided with mass flowmeter 12 in addition, can detect in real time at linear flow rate, when flow surpassed setting value, mass flowmeter 12 transferred signals in the rotational speed governor 13, the rotating speed of rotational speed governor 13 controls reduction volume pump 2; When flow is lower than setting value, mass flowmeter 12 transfers signals in the rotational speed governor 13, the rotating speed of rotational speed governor 13 control rising volume pumps 2, thus make the flow of material and the rotating speed of volume pump 2 be in relative balance state, further improved measuring accuracy; On circulation pipe 4, be provided with intercepting valve 14 in addition, intercepting valve 14 is realized synchronization action with casting valve 3 by the controller 15 that dams, in unproductive time, when the cast bar 35 of casting valve 3 stretches out, controller 15 synchro control of damming are opened intercepting valve 14, make material be in recurrent state; In production period, in the time of cast bar 35 withdrawals of casting valve 3, controller 15 synchro control of damming are closed intercepting valve 14, thereby solve the backflow phenomenon of material, and a step has been improved measuring accuracy again.
Claims (2)
1. volume control device, comprise test tank 1, test tank 1 is connected with volume pump 2 by pipeline, volume pump 2 is connected with casting valve 3 by pipeline, casting valve 3 is connected with test tank 1 by circulation pipe 4, it is characterized in that: test tank 1 is provided with draft tube 5 and escape pipe 6, described draft tube 5 is provided with gas admittance valve 7, described escape pipe 6 is provided with air outlet valve 8, described draft tube 5 is connected with source of the gas 9, test tank 1 is connected with pressure transducer 10 by pipeline, pressure transducer 10 is connected with pressure controller 11 communications, 8 communications are connected pressure controller 11 with air outlet valve with gas admittance valve 7, and the pipeline between described volume pump 2 and the casting valve 3 is provided with mass flowmeter 12, and described mass flowmeter 12 communicates with rotational speed governor 13 and is connected, described rotational speed governor 13 is connected with volume pump 2 communications, described circulation pipe 4 is provided with intercepting valve 14, and described casting valve 3 is connected with controller 15 communications of damming, and the described controller 15 that dams is connected with intercepting valve 14 communications.
2. volume control device according to claim 1, it is characterized in that: described casting valve 3 comprises the cylindrical shell 31 of a hollow, housing 31 sidepieces are provided with charging aperture 32, one end of housing 31 is provided with discharging opening 33, the other end of housing 31 is provided with circulation port 34, and the inside of housing 31 is provided with cast bar 35, when cast bar 35 expanding-contracting actions, charging aperture 32 is connected with circulation port 34 or discharging opening 33 respectively, and described circulation pipe 4 is connected with the circulation port 34 of casting valve 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102184868A CN101872200B (en) | 2010-06-29 | 2010-06-29 | Flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102184868A CN101872200B (en) | 2010-06-29 | 2010-06-29 | Flow control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101872200A true CN101872200A (en) | 2010-10-27 |
| CN101872200B CN101872200B (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102184868A Expired - Fee Related CN101872200B (en) | 2010-06-29 | 2010-06-29 | Flow control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101872200B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183974A (en) * | 2011-03-07 | 2011-09-14 | 福建省长汀金龙烯土有限公司 | System and method for accurately controlling flow of rare earth material |
| CN104374434A (en) * | 2014-10-20 | 2015-02-25 | 常德芙蓉大亚化纤有限公司 | System and method for metering application amount of communicating vessel type cigarette plasticizer |
| CN106881051A (en) * | 2015-12-15 | 2017-06-23 | 上海奥星制药技术装备有限公司 | Emulsification control system |
| CN111804531A (en) * | 2020-07-15 | 2020-10-23 | 浙江锋锂新能源科技有限公司 | Feeding device capable of eliminating pulses and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436108A (en) * | 2000-04-20 | 2003-08-13 | 普罗控制公开股份有限公司 | Method and drive system for control/regulation of linear pressure/cast movement |
| US6837443B2 (en) * | 2002-03-20 | 2005-01-04 | Hitachi, Ltd. | Heat pump hot-water supply system |
| JP2008058201A (en) * | 2006-08-31 | 2008-03-13 | Toshiba Corp | Water meter |
| CN201749370U (en) * | 2010-06-29 | 2011-02-16 | 张家港市沃斯汀新材料研究所有限公司 | Flow control device with mass flow meter |
| CN201773324U (en) * | 2010-06-29 | 2011-03-23 | 张家港市沃斯汀新材料研究所有限公司 | Flow control device |
-
2010
- 2010-06-29 CN CN2010102184868A patent/CN101872200B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436108A (en) * | 2000-04-20 | 2003-08-13 | 普罗控制公开股份有限公司 | Method and drive system for control/regulation of linear pressure/cast movement |
| US6837443B2 (en) * | 2002-03-20 | 2005-01-04 | Hitachi, Ltd. | Heat pump hot-water supply system |
| JP2008058201A (en) * | 2006-08-31 | 2008-03-13 | Toshiba Corp | Water meter |
| CN201749370U (en) * | 2010-06-29 | 2011-02-16 | 张家港市沃斯汀新材料研究所有限公司 | Flow control device with mass flow meter |
| CN201773324U (en) * | 2010-06-29 | 2011-03-23 | 张家港市沃斯汀新材料研究所有限公司 | Flow control device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183974A (en) * | 2011-03-07 | 2011-09-14 | 福建省长汀金龙烯土有限公司 | System and method for accurately controlling flow of rare earth material |
| CN104374434A (en) * | 2014-10-20 | 2015-02-25 | 常德芙蓉大亚化纤有限公司 | System and method for metering application amount of communicating vessel type cigarette plasticizer |
| CN104374434B (en) * | 2014-10-20 | 2018-01-26 | 常德芙蓉大亚化纤有限公司 | A kind of connected vessels type tobacco plasticizer applies consumption metering system and method |
| CN106881051A (en) * | 2015-12-15 | 2017-06-23 | 上海奥星制药技术装备有限公司 | Emulsification control system |
| CN111804531A (en) * | 2020-07-15 | 2020-10-23 | 浙江锋锂新能源科技有限公司 | Feeding device capable of eliminating pulses and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101872200B (en) | 2011-09-14 |
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Owner name: AUSTIN NEW MATERIAL (ZHANGJIAGANG) CO., LTD. Free format text: FORMER OWNER: ZHANGJIAGANG AUSTIN NEW MATERIAL INSTITUTE LTD. Effective date: 20110926 |
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Effective date of registration: 20110926 Address after: 215600 No. 17 Yue Feng Road, Zhangjiagang Economic Development Zone, Jiangsu, Suzhou Patentee after: Austen new material (Zhangjiagang) Co., Ltd. Address before: 215600 intersection of Yue Feng Road and Changxin Road, Zhangjiagang Economic Development Zone, Suzhou, Jiangsu Patentee before: Zhangjiagang Austin New Material Institute Ltd. |
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Granted publication date: 20110914 Termination date: 20140629 |
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