CN200958952Y - Float flowmeter - Google Patents
Float flowmeter Download PDFInfo
- Publication number
- CN200958952Y CN200958952Y CN 200620046512 CN200620046512U CN200958952Y CN 200958952 Y CN200958952 Y CN 200958952Y CN 200620046512 CN200620046512 CN 200620046512 CN 200620046512 U CN200620046512 U CN 200620046512U CN 200958952 Y CN200958952 Y CN 200958952Y
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- optical fiber
- suspended body
- body flowmeter
- laser
- glass tube
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Abstract
The utility model discloses a float flow meter aiming at providing a float flow meter aiming that can eliminate the influence of the interference magnetic field and improving the flow rate indication accuracy of a supervision point. The float flow meter comprises a mounting bracket, a reversed taper shaped glass pipe that is fixed on the mounting bracket, a buoy that is arranged in the reversed taper shaped glass pipe. The float flow meter also includes a signal collecting device with at least one optical fiber sensors. The optical fiber sensor comprises a light signal controlling machine and a pair of optical fibers that are connected with the light signal controlling machine. The optical fibers are mutually and oppositely arranged inside the two laterals of the reversed taper shaped glass pipe. The utility model can be applied to the flow rate supervision of the products such as sea water desalting devices.
Description
(1) technical field
The utility model relates to suspended body flowmeter, especially relates to a kind of suspended body flowmeter of band signal harvester.
(2) background technology
Suspended body flowmeter has been widely used in the monitoring of fluid flow, its ultimate principle is the float of packing in the back taper glass tube, when liquid flows through this Taper Pipe from bottom to top, under the interaction of the impulse force that gravity, buoyancy and liquid flow form, float floats in a certain position of Taper Pipe, keeps balance.Corresponding relation between equilibrium position and the fluid flow is determined in advance by test, by the mark scale, thereby can read out fluid flow.As signal receiver is installed on flowmeter, be generally the coil of induced magnetism, also can monitor reference mark (such as the upper and lower limit of flow).Existing suspended body flowmeter generally is to adopt magnetic material and nonmagnetic substance to be divided into two classes according to float.Adopt the flowmeter of magnetic float owing to adopt magnetic field to receive, so near disturbing magnetic field influence being subjected to easily also can influence simultaneously the indication of float to real traffic; The float of nonmagnetic substance suspended body flowmeter generally adopts metal to make, and receiving equipment is still employing plain conductor formation toroidal magnetic field, when passing through this magnetic field, metal floater produces signal, the appearance of this metal floater has reduced the influence of STOCHASTIC MAGNETIC FIELD to float, but signal receive section remains magnetic field, this magnetic field that is formed by lead need just can detect with specific installation, so the fault detect of the equipment of giving has brought certain difficulty, more priorly be, because the dispersiveness in magnetic field makes the detected flow accuracy of this flowmeter be subjected to very big influence, just find in the practical application that float can both trigger pip output in very big flow range.
(3) summary of the invention
The technical problems to be solved in the utility model is to overcome the shortcoming of prior art, and a kind of suspended body flowmeter that can eliminate the influence of disturbing magnetic field and can improve monitoring point flow pointing accuracy is provided.
Suspended body flowmeter of the present utility model comprises mounting bracket, be fixed in back taper glass tube on the mounting bracket, be contained in the float in the back taper glass tube, described suspended body flowmeter also comprises a signal pickup assembly, signal pickup assembly comprises at least one Fibre Optical Sensor, Fibre Optical Sensor comprises optical signal controller and a pair of optical fiber that links to each other with optical signal controller, and optical fiber is located at the both sides of back taper glass tube relative to one another.
Suspended body flowmeter of the present utility model adopts Fibre Optical Sensor, has avoided the influence of random disturbance magnetic field to flow signal, because laser has good directivity in transmission course, so overcome the reduction that the accuracy of detection that is caused is dispersed in magnetic field.In addition, suspended body flowmeter of the present utility model is simple in structure, and is easy to operate.
(4) description of drawings
Fig. 1 is the work synoptic diagram of suspended body flowmeter of the present utility model;
Fig. 2 is the stereographic map of suspended body flowmeter body of the present utility model;
Fig. 3 is the front view of suspended body flowmeter body of the present utility model;
Fig. 4 is the side view of suspended body flowmeter body of the present utility model;
Fig. 5 is the synoptic diagram of optical fiber interface frame of the present utility model.
(5) embodiment
Suspended body flowmeter of the present utility model replaces the field signal receiver with Fibre Optical Sensor on the basis of float that keeps prior art and back taper glass tube, and has adopted the optical fiber interface frame of laying optical fiber and can moving up and down on mounting bracket.
Fig. 1 shows suspended body flowmeter 100 of the present utility model, and it mainly comprises back taper glass tube 1, float 2, mounting bracket 3, optical fiber 6, optical signal controller 9.The lower end of back taper glass tube 1 communicates with water inlet 4, and the upper end communicates with water delivering orifice 5.Optical fiber 6 and optical signal controller 9 constitute Fibre Optical Sensor, as signal pickup assembly.The output terminal of optical signal controller 9 links to each other with flow signal processing module 10 through signal wire.Described Fibre Optical Sensor can obtain from the market.Two holes are arranged on the optical signal controller 9 of this Fibre Optical Sensor, a hole is a laser emission port, another hole is the laser pick-off hole, and two optical fiber are introduced the transmission that is used for laser in these two holes respectively, then these two optical fiber is arranged at relative to one another the both sides of back taper glass tube 1 respectively.For optical fiber conveniently is set, the utility model has adopted an optical fiber interface frame 7, as shown in Figure 5.Optical fiber interface frame 7 is the U-shaped frame, the symmetria bilateralis of U-shaped frame have hollow optical fiber insert groove 71, optical fiber inserts hole 72 and screw 73, optical fiber inserts groove 71 and optical fiber and inserts hole 72 and communicate.The optical fiber of U-shaped frame both sides inserts hole 72 toward each other, equal and opposite in direction.When detecting, optical fiber inserts groove 71 from optical fiber and penetrates and enter into optical fiber access hole 72.Can also be clear that from Fig. 2 optical signal controller 9 is loaded in the iron-clad, to play effect dustproof and protection.Optical fiber interface frame 7 is mounted on the chute 31 of mounting bracket 3 by bolt, and can move up and down along chute 31.The opening that back taper glass tube 1 passes the optical fiber interface frame 7 of U-shaped is fixed on the mounting bracket 3, thereby makes that seeing through back taper glass tube 1 from the laser that optical fiber sent of optical fiber interface frame one side is received by the optical fiber of optical fiber interface frame opposite side.Because optical fiber is to pass optical fiber to insert the optical fiber access hole that groove places the optical fiber interface frame, and the position in the optical fiber of optical fiber interface frame both sides access hole toward each other, its axle center is on the same straight line, so when detecting, can make optical fiber keep stable, and make the aligning that keeps good that transmits and receives of laser.Thereby, adopt described optical fiber interface frame to simplify the operation of laser alignment and help improving the precision of laser alignment.
The principle of work and the process of suspended body flowmeter of the present utility model are described in conjunction with Fig. 1, Fig. 2 and Fig. 5 below again.After optical signal controller 9 powers on, send red laser, this red laser penetrates from the optical fiber access hole 72 of optical fiber interface frame 7 one sides through optical fiber 6 transmission backs, and back taper glass tube 1 is crossed in transmission, and the optical fiber 6 that is inserted in the hole 72 by optical fiber interface frame 7 opposite side optical fiber receives then.Signal after 9 pairs of received laser signals of optical signal controller are handled and will be handled is delivered in the flow signal processing module 10 through signal wire.In the present embodiment, flow signal processing module 10 is single-chip microcomputers.The operator can be provided with the upper and lower bound of flow to mcu programming, and when flow exceeded the limit value of setting, single-chip microcomputer sent a signal to the control circuit of pipeline valve, thereby realizes the purpose of Control Flow.Flow signal processing module 10 also can be other electric signal control device such as relay, mainly decides according to user's needs.If laser is subjected to stopping of float in delivering path, then optical signal controller 9 received light signal strengths will significantly reduce.In view of the above, optical signal controller can be adjusted the size of light signal threshold value according to actual operating position, just can think that when light intensity is lower than certain particular value float has arrived the position of setting flow, at this moment can send signal and give flow signal processing module 10, handle.From Fig. 1 and Fig. 2 as can be seen, in order to realize monitoring, can use a plurality of Fibre Optical Sensors and a plurality of optical fiber interface framves are installed a plurality of flow control points.Present embodiment has adopted two Fibre Optical Sensors, so that the upper and lower bound of monitoring flow.Simultaneously, can change the flow monitoring point easily by moving up and down the optical fiber interface frame.
In sum, this novel suspended body flowmeter has adopted fiber optic sensor technology, by the light signal strength of measuring, relatively receiving, reaches the purpose of monitoring flow; By the fixed position of up-down adjustment optical fiber interface frame, change the monitoring location of optical fiber, thereby realize the setting of flow control point; And can regulate the light signal threshold value according to actual conditions.
Fig. 3 and Fig. 4 are respectively the front view and the side views of suspended body flowmeter body of the present utility model.As shown in Figure 4, optical signal controller 9 is fixed on the controller support 91, is respectively equipped with pipe joint 18 in the position of water inlet and water delivering orifice, is used for being connected with outside water pipe.
Suspended body flowmeter of the present utility model combines traditional suspended body flowmeter and Fibre Optical Sensor, uses light transmitting fiber that laser signal is transmitted, and has guaranteed the stability of signal; Because the diversity of laser in transmission course be more much smaller than normal optical, interior even can think just point in the flow detection distance, like this, by setting the flow signal that suitable light intensity detection threshold just can very accurately provide set point; Simultaneously, owing to adopt red laser that metal floater is detected, if fault can be observed very intuitively.Compare with the suspended body flowmeter of traditional magnetic induction, not only avoided of the influence of random disturbance magnetic field, and overcome the defective of the accuracy of detection difference that the magnetic field divergence characterization caused flow signal.
Suspended body flowmeter of the present utility model can be applicable on the flow monitoring of products such as sea water desalinating unit.
Claims (8)
1. suspended body flowmeter, described suspended body flowmeter comprises mounting bracket, be fixed in back taper glass tube on the described mounting bracket, be contained in the float in the described back taper glass tube, it is characterized in that, described suspended body flowmeter also comprises a signal pickup assembly, described signal pickup assembly comprises at least one Fibre Optical Sensor, described Fibre Optical Sensor comprises optical signal controller and a pair of optical fiber that links to each other with described optical signal controller, and described optical fiber is located at the both sides of described back taper glass tube relative to one another.
2. suspended body flowmeter as claimed in claim 1, it is characterized in that, described optical signal controller is provided with laser emission port and laser pick-off hole, described optical fiber is introduced described laser emission port and laser pick-off hole respectively, described optical signal controller is set the light intensity threshold value, the optical fiber of described laser pick-off hole one side receives from the optical fiber of described laser emission port one side and sends the laser that described back taper glass tube is crossed in also transmission, when the light intensity of the laser that is received is lower than the described light intensity threshold value of setting, described optical signal controller output signal.
3. suspended body flowmeter as claimed in claim 1 or 2, it is characterized in that, described suspended body flowmeter also comprises the fiber orientation device that described optical fiber is arranged at described back taper glass tube both sides respectively, described fiber orientation device comprises the optical fiber interface frame that is installed on the described mounting bracket, described optical fiber interface frame is a U-shaped, and the opening that described back taper glass tube passes described optical fiber interface frame is fixed on the described mounting bracket.
4. suspended body flowmeter as claimed in claim 3 is characterized in that, is provided with chute on the both sides of described mounting bracket symmetrically, and described optical fiber interface frame is fixed in the described chute by securing member, and can move up and down in described chute.
5. suspended body flowmeter as claimed in claim 4, it is characterized in that the both sides of described optical fiber interface frame respectively are provided with optical fiber and insert groove and optical fiber access hole, described optical fiber inserts the hole toward each other, optical fiber inserts the groove from described optical fiber and penetrates, and enters in the described optical fiber access hole.
6. suspended body flowmeter as claimed in claim 1 is characterized in that, described signal pickup assembly comprises two Fibre Optical Sensors.
7. suspended body flowmeter as claimed in claim 2 is characterized in that, described laser is red laser.
8. suspended body flowmeter as claimed in claim 2 is characterized in that described optical signal controller comprises output signal line, and described output signal line is connected with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046512 CN200958952Y (en) | 2006-09-29 | 2006-09-29 | Float flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046512 CN200958952Y (en) | 2006-09-29 | 2006-09-29 | Float flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200958952Y true CN200958952Y (en) | 2007-10-10 |
Family
ID=38785834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620046512 Expired - Fee Related CN200958952Y (en) | 2006-09-29 | 2006-09-29 | Float flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200958952Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680032A (en) * | 2012-05-25 | 2012-09-19 | 来卫国 | Magnetic displacement float flowmeter |
| CN103134944A (en) * | 2011-11-29 | 2013-06-05 | 沈阳芯源微电子设备有限公司 | Flow velocity measuring device |
| CN103162748A (en) * | 2013-02-04 | 2013-06-19 | 中国科学院半导体研究所 | Optical floater flowmeter |
| CN103196509A (en) * | 2012-01-05 | 2013-07-10 | 高明 | Outer-clamping type glass rotameter alarm switch |
| CN103438943A (en) * | 2013-09-02 | 2013-12-11 | 山东大学 | Optical fiber conduction type rotor flow sensor |
| CN103604472A (en) * | 2013-11-25 | 2014-02-26 | 山东大学 | Digital gas flow sensor |
| CN104614023A (en) * | 2015-01-13 | 2015-05-13 | 司敏 | Intelligent floater gas meter |
| CN109211337A (en) * | 2018-09-27 | 2019-01-15 | 北京华科仪科技股份有限公司 | A kind of bus type photoelectric flowmeter |
| CN116839674A (en) * | 2023-07-13 | 2023-10-03 | 深圳市沃尔克自动化控制有限公司 | Pipeline flow temperature monitoring sensor |
-
2006
- 2006-09-29 CN CN 200620046512 patent/CN200958952Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134944A (en) * | 2011-11-29 | 2013-06-05 | 沈阳芯源微电子设备有限公司 | Flow velocity measuring device |
| CN103196509A (en) * | 2012-01-05 | 2013-07-10 | 高明 | Outer-clamping type glass rotameter alarm switch |
| CN102680032A (en) * | 2012-05-25 | 2012-09-19 | 来卫国 | Magnetic displacement float flowmeter |
| CN103162748B (en) * | 2013-02-04 | 2016-01-20 | 中国科学院半导体研究所 | A kind of optical floater flowmeter |
| CN103162748A (en) * | 2013-02-04 | 2013-06-19 | 中国科学院半导体研究所 | Optical floater flowmeter |
| CN103438943A (en) * | 2013-09-02 | 2013-12-11 | 山东大学 | Optical fiber conduction type rotor flow sensor |
| CN103438943B (en) * | 2013-09-02 | 2015-08-12 | 山东大学 | A kind of optical fiber conduction type rotor flow sensor |
| CN103604472A (en) * | 2013-11-25 | 2014-02-26 | 山东大学 | Digital gas flow sensor |
| CN103604472B (en) * | 2013-11-25 | 2015-12-30 | 山东大学 | A kind of digital gas flow sensor |
| CN104614023A (en) * | 2015-01-13 | 2015-05-13 | 司敏 | Intelligent floater gas meter |
| CN104614023B (en) * | 2015-01-13 | 2017-12-01 | 司敏 | A kind of intelligent float gas meter, flow meter |
| CN109211337A (en) * | 2018-09-27 | 2019-01-15 | 北京华科仪科技股份有限公司 | A kind of bus type photoelectric flowmeter |
| CN116839674A (en) * | 2023-07-13 | 2023-10-03 | 深圳市沃尔克自动化控制有限公司 | Pipeline flow temperature monitoring sensor |
| CN116839674B (en) * | 2023-07-13 | 2024-03-29 | 深圳市沃尔克自动化控制有限公司 | Pipeline flow temperature monitoring sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071010 Termination date: 20130929 |