CN201562174U - Flow measurement and control device - Google Patents
Flow measurement and control device Download PDFInfo
- Publication number
- CN201562174U CN201562174U CN2009202465455U CN200920246545U CN201562174U CN 201562174 U CN201562174 U CN 201562174U CN 2009202465455 U CN2009202465455 U CN 2009202465455U CN 200920246545 U CN200920246545 U CN 200920246545U CN 201562174 U CN201562174 U CN 201562174U
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- control device
- shunt
- sensor
- flow metering
- control
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Abstract
The utility model discloses a flow measurement and control device. The flow measurement and control device comprises a measuring device and a control device, wherein the measuring device comprises a diverter (8) and a sensor (3); the control device comprises a controlling unit (4) and a control valve (5); and a shell of the measuring device forms into a whole with a shell of the control device to become a channel (1). The flow measurement and control device has the advantages of large flow control, high measuring accuracy, high response speed, stability, reliability, wide range of operating pressure, easy processing, easy installation and convenient operation, can be connected with a computer for realizing automatic control and is mainly used for accurately controlling the mass flow of gas.
Description
Technical field
The utility model relates to a kind of measuring apparatus, relates in particular to the device that a kind of flow of convection cell measures and controls.
Background technology
In productive life, relate to the conveying of gas, combustion gas and steam, in course of conveying, flow is measured and control is very important.The flow metering control device of prior art mostly is a flow of directly measuring gas in the sprue, and peripheral hardware complex control apparatus, though this flow metering control device can be measured and the flow of pilot-gas, but complex structure, and measure and the control out of true, especially when flow is excessive or too small, be difficult to accurately measure and control, this device uses also very inconvenient.
The utility model content
The purpose of this utility model is in order to overcome the above-mentioned defective of prior art, provides a kind of flow that can convection cell (especially to gas, as steam, combustion gas, air etc.) to measure and the accurate metering control of control.
For achieving the above object, the utility model adopts following technical scheme:
A kind of flow metering control device that the utility model provides comprises measuring apparatus and control device, and described measuring apparatus comprises shunt and sensor; Described control device comprises control module and operation valve; The housing of described measuring apparatus and control device forms one, becomes passage.
Wherein, described sensor is connected with described control module, and described passage is provided with diffluence pass, and described sensor is connected with described passage by described diffluence pass; Described shunt is located in the described passage.
Wherein, described shunt comprises shunt seat and isocon.
Wherein, the rear end of described shunt uses O-ring seal to seal.Described O-ring seal is the O RunddichtringO.
Wherein, the front end of described shunt is provided with filtrator.
Wherein, described shunt seat is an annular, and its periphery has screw thread.
Wherein, described control module comprises amplifier and comparer.
Wherein, described sensor has kapillary, and it is identical with the shape of described isocon that described kapillary has.
The technical solution of the utility model makes that this apparatus structure is simple, volume is little, and has improved the sealing effectiveness of this device by with the passage of metering section and the channel set integrator of operation valve part; By add the sealing of O RunddichtringO in the shunt rear end, further guaranteed the accurate control of this device good sealing effect and realization convection cell.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of flow metering control device of the prior art;
Fig. 2 is the system architecture synoptic diagram of the utility model embodiment;
Fig. 3 is the structural representation of shunt among Fig. 2.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 2, the system according to the utility model embodiment comprises measuring apparatus and control device: measuring apparatus comprises shunt 8 and sensor 3; Control device comprises control module 4 (control module 4 is for being positioned at the control circuit board of measuring apparatus housing) and operation valve 5.Control module 4 can be electrically connected with sensor 3, operation valve 5 respectively.The housing of measuring apparatus and control device forms one, becomes passage 1.
Compare with traditional flow metering control device, the result of this device has carried out bigger improvement.Traditional device as shown in Figure 1, the housing of measuring apparatus is two parts with the control valve housing, treat that these two parts have assembled respectively after, connect by screw again, the surface of contact in the middle of two parts seals with the O circle.And the housing of this device measuring apparatus and control device forms one, becomes passage 1, and whole channel architecture is simple, volume reduces thereby make, and the sealing effectiveness of whole device is better.
In the present embodiment, passage 1 is provided with diffluence pass, and diffluence pass is provided with sensor 3, and sensor is connected with passage 1 by diffluence pass.The import of shunt 8 is connected with the import of diffluence pass 2, and outlet is connected with the outlet 6 of diffluence pass.
In the present embodiment, shunt 8 can be for cylindric, and as shown in Figure 3, shunt 8 comprises shunt seat 9 and isocon 10, and shunt seat 9 can be annular, and periphery has screw thread, is used for shunt 8 is fixed in the passage 1.And isocon 10 adopt with sensor in the identical shaped kapillary of kapillary, select the quantity of isocon 10 according to the flow specification, form the shunting tube bank, will shunt tube bank with glue then and shunt valve base 9 is fixed together.
In the present embodiment, the rear end of shunt 8 can seal with O-ring seal, for example the O RunddichtringO 7, to guarantee that measured fluid can only pass through from the kapillary of isocon 10 and sensor 3, further improved the sealing property of this loading, the ratio of fluid flow that has also guaranteed to flow through the fluid of shunt 8 and flows through sensor 3 is accurate.The front end of shunt 8 can be provided with filtrator, is used for the particle of fluid is filtered, and stops up with kapillary and the isocon 10 of avoiding sensor 3.Wherein, as shown in Figure 2, the import of the front end of shunt 8 and sensor 3 (being the import 2 of diffluence pass) is at homonymy, and the rear end of shunt and the outlet of sensor (being the outlet 6 of diffluence pass) are at homonymy.If with the shunt valve base is the boundary, the isocon 10 of shunt 8 front ends stretches out shorter, and the isocon 10 of rear end stretches out longer.
In the present embodiment, control module 4 comprises control circuit, and control circuit comprises amplifier and comparer, and the control circuit external interface comprises two parts, and a part is a display interface, is used to connect outside display, to show the flow value of measuring; Another part is to set interface, is used to receive outside setting signal.These two parts can be realized by an electric D type joint.
During the device busy of present embodiment, fluid enters from the air inlet inlet of device, earlier through filtrator, convection cell filters, clean fluid admission passage after the filtration, in passage, the shunt convection cell is shunted in proportion, most of fluid flows through shunt, remaining fraction sensor of flowing through.The effect of sensor is exactly that its fluid of flowing through is measured, and by being connected with control module, the flow signal in the detected diffluence pass is converted to electric signal and exports to control module.Control module converses the fluid flow of the sensor of flowing through according to this electric signal, again by the split ratio of shunt and sensor, calculates total fluid flow; The electric signal of representing total fluid flow amplifies through the amplifier of control circuit, and compares through the comparer and the setting value of control circuit, and control circuit is given voltage signal of operation valve according to result relatively then.Operation valve is controlled the aperture of valve port according to the voltage signal that control circuit provided, thereby realizes the size of Control Flow.Wherein, the drive unit of operation valve can use solenoid valve, and behind voltage signal of solenoid valve input, the suitable aperture that the valve port of operation valve just is opened to makes by the fluid flow of operation valve valve port consistent with the flow value of setting.At last, flow through to enter together after two parts fluid of sensor and shunt converges and controlled the operation valve of valve port well.
As can be seen from the above embodiments, embodiment of the present utility model makes that this apparatus structure is simple, volume is little, and has improved the sealing effectiveness of this device by with the passage of metering section and the channel set integrator of operation valve part; By add the sealing of O RunddichtringO in the shunt rear end, further guaranteed the accurate control of this device good sealing effect and realization convection cell.And the Control Flow of present embodiment is big, response speed is fast, reliable and stable, working pressure range is wide, easily processing, easily install, easy to use, can be connected with computing machine to realize automatic control.
Above embodiment only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (9)
1. a flow metering control device comprises measuring apparatus and control device, and described measuring apparatus comprises shunt (8) and sensor (3); Described control device comprises control module (4) and operation valve (5); It is characterized in that the housing of described measuring apparatus and control device forms one, becomes passage (1).
2. flow metering control device as claimed in claim 1 is characterized in that, described sensor (3) is connected with described control module (4), and described passage (1) is provided with diffluence pass, and described sensor (3) is connected with described passage (1) by described diffluence pass; Described shunt (8) is located in the described passage (1).
3. flow metering control device as claimed in claim 1 is characterized in that, described shunt (8) comprises shunt seat (9) and isocon (10).
4. as the arbitrary described flow metering control device of claim 1-3, it is characterized in that the rear end of described shunt (8) uses O-ring seal to seal.
5. flow metering control device as claimed in claim 4 is characterized in that, described O-ring seal is the O RunddichtringO.
6. as the arbitrary described flow metering control device of claim 1-3, it is characterized in that the front end of described shunt (8) is provided with filtrator.
7. flow metering control device as claimed in claim 3 is characterized in that, described shunt seat (9) is an annular, and its periphery has screw thread.
8. as the arbitrary described flow metering control device of claim 1-3, it is characterized in that described control module (4) comprises amplifier and comparer.
9. as the arbitrary described flow metering control device of claim 1-3, it is characterized in that described sensor (3) has kapillary, it is identical with the shape of described isocon (10) that described kapillary has.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202465455U CN201562174U (en) | 2009-11-02 | 2009-11-02 | Flow measurement and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202465455U CN201562174U (en) | 2009-11-02 | 2009-11-02 | Flow measurement and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562174U true CN201562174U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202465455U Expired - Fee Related CN201562174U (en) | 2009-11-02 | 2009-11-02 | Flow measurement and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460706A (en) * | 2013-09-12 | 2015-03-25 | 朗姆研究公司 | Cluster mass flow devices and multi-line mass flow devices incorporating the same |
| CN110375819A (en) * | 2019-07-24 | 2019-10-25 | 北京七星华创流量计有限公司 | Part flow arrangement and mass flow controller |
-
2009
- 2009-11-02 CN CN2009202465455U patent/CN201562174U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460706A (en) * | 2013-09-12 | 2015-03-25 | 朗姆研究公司 | Cluster mass flow devices and multi-line mass flow devices incorporating the same |
| CN104460706B (en) * | 2013-09-12 | 2020-01-07 | 朗姆研究公司 | Clustered mass flow device and multi-pipeline mass flow device incorporating same |
| CN110375819A (en) * | 2019-07-24 | 2019-10-25 | 北京七星华创流量计有限公司 | Part flow arrangement and mass flow controller |
| CN110375819B (en) * | 2019-07-24 | 2021-01-15 | 北京七星华创流量计有限公司 | Flow dividing device and mass flow controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20161102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |