CN200993582Y - Pipeline fluid detecting device - Google Patents
Pipeline fluid detecting device Download PDFInfo
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- CN200993582Y CN200993582Y CN 200620159331 CN200620159331U CN200993582Y CN 200993582 Y CN200993582 Y CN 200993582Y CN 200620159331 CN200620159331 CN 200620159331 CN 200620159331 U CN200620159331 U CN 200620159331U CN 200993582 Y CN200993582 Y CN 200993582Y
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Abstract
The utility model relates to a fluid detector, in particular to a detector to calculate a plurality of fluid dependent variables in pipes online, which comprises a measuring pipe, an elastic pipe, an external sleeve, a weight detecting mechanism, a compensating and regulating mechanism and an electric control measuring system. Wherein, both ends of the measuring tube are connected with the elastic pipe. The other end of a left and a right fixed pipe connected with the elastic pipe is respectively connected with an external pipe inlet and outlet. The measuring pipe is wrapped into the external sleeve. Both horizontal sides at one end of the measuring pipe are connected with the external sleeve through a bearing. The other end of the measuring tube is connected with the weight detecting mechanism through a pull rod. The suspended measuring pipe has the advantages of rational and simple structure and high detecting accuracy. A chilled water pressure compensating and regulating mechanism between the measuring pipe and external sleeve and a temperature compensating and regulating mechanism for the weight detecting mechanism enable compensative treatment to various factors and ensure high measuring accuracy and reliability.
Description
Technical field
The utility model relates to a kind of fluid detecting device, the pick-up unit of the multinomial variable of fluid of flowing through in particularly a kind of on-line metering pipeline.
Background technology
When the pipeline transportation operation, people often want the concentration of a certain material in interior solid-liquid of continuous detection of dynamic pipeline or the liquid liquid two-phase material, density, flow velocity and flow etc., Chinese patent CN1056234, CN2247338 discloses the pick-up unit of the multinomial variable of liquid of flowing through in such on-line metering pipeline, this pick-up unit comprises elastomeric joint, measuring tube, pressure transducer, the doppler ultrasound flow velocity probe, force cell, following lever, upper lever, wire rope, the balance foundary weight, eccentric wheel, parts such as micromotor are marked with the antifreeze water of equalized pressure between the inner and outer pipes of measuring tube.There is following weak point in above-mentioned detection device:
1, complex structure and unreasonable, accuracy of detection is not high;
2, the pressure value of chilled water must balance each other with the pressure in the measuring tube between measuring tube and the outer tube, thereby the state when uneven will directly make measuring tube, elastic tube distortion influence accuracy of detection, and said apparatus lacks the pressure compensation regulatory function to this chilled water;
3, the influence of the measuring accuracy that temperature variation is caused can not obtain Compensation Regulation and handles;
4, the influence of the measuring accuracy that variation causes to pipeline pressure can not obtain the Compensation Regulation processing.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art part, a kind of simple in structure, stable performance, precision pipeline fluid pick-up unit accurately is provided, and its device has that the inner and outer pipes pressure compensation is regulated, the function of temperature compensation adjusting.
The utility model is for realizing that its goal of the invention has adopted following technical proposal:
A kind of pipeline fluid pick-up unit, comprise measuring tube, elastic tube, outer tube, weight detecting mechanism, Compensation Regulation mechanism, electric control measuring system, the two ends of measuring tube connect with elastic tube, the other end of the left and right sides stationary pipes that elastic tube connects connects with the inlet pipeline and the outlet conduit of outside respectively, measuring tube is enclosed within the outer tube, the horizontal both sides of one end position of said measuring tube connect with outer tube by bearing, and the other end position of measuring tube is connected with weight detecting mechanism by pull bar.
Said weight detecting mechanism comprises support, lever, force cell, pull bar, said support is installed on the outer tube, lever is installed in the upper end of support, one end cylinder lever connecting rod of lever, pull bar passes outer tube and is connected with measuring tube, between the other end position of lever and the outer tube force cell is installed.
Said pull bar comprises upper connecting rod and lower link, and upper connecting rod one end connects the top of measuring tube, and the other end connects lever, and lower link one end connects the bottom of measuring tube, and the other end is installed on the outer tube.
In the said Compensation Regulation mechanism chilled water pressure Compensation Regulation mechanism between a measuring tube pipe and the outer tube is set, comprise a pressure synchronizer, this pressure synchronizer one end is connected with pipeline, and the other end is connected with chilled water space in measuring tube and the outer tube by pipeline.
Said pressure synchronizer is a tubular structure, inside have a cap shape resilient sleeve up and down space sealing separately, the lower end is connected with pipeline, the upper end is connected with chilled water space in measuring tube and the outer tube by pipeline.
Be provided with one in the said Compensation Regulation mechanism and measure weight detecting mechanism Temperature Compensation governor motion, comprise a temperature sensor, the probe of said temperature sensor is installed on the parts of weight detecting mechanism, temperature sensor is delivered to the electric control measuring system with the temperature signal that records, and the Industrial Control Computer in the electric control measuring system compensates according to variation of temperature.
The Compensation Regulation mechanism of one measuring channel hydrodynamic pressure is set in the said Compensation Regulation mechanism, comprise a pressure transducer, said pressure transducer is installed on the outer tube, pressure transducer changes the pressure in the chilled water between the measuring tube that records and the outer tube and is delivered to the electric control measuring system, and the Industrial Control Computer in the electric control measuring system compensates according to the variation of pressure.
Said electric control measuring system also comprises: (1) one doppler ultrasound flow velocity probe; (2) one are made up of micromotor, offset cam, balance foundary weight and cooperate the stabiloity compensation regulating device that constitutes with force cell; (3) the one anti-vibration compensation adjustment devices that constitute by micromotor, offset cam, standard weights foundary weight; (4) various signals are carried out the Industrial Control Computer of control and treatment.
Compared with prior art, the utlity model has following advantage: the particular hanging measuring tube is simple in structure reasonable again, the accuracy of detection height; The factor that chilled water pressure Compensation Regulation mechanism, measurement weight detecting mechanism Temperature Compensation governor motion, the Compensation Regulation mechanism of measuring channel hydrodynamic pressure have possessed to every appearance device between measuring tube that is provided with and the outer tube gives compensation deals, has guaranteed the high precision and the high reliability of measurement device.
Below in conjunction with accompanying drawing the utility model is described in detail.
Description of drawings
The pipeline fluid pick-up unit cross-section front view that Fig. 1 provides for the utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
Specific implementation method
The pipeline fluid pick-up unit, comprise measuring tube 1, elastic tube 2, outer tube 3, weight detecting mechanism 4, Compensation Regulation mechanism, the electric control measuring system, the two ends of measuring tube connect with elastic tube, the left and right sides stationary pipes 5 that elastic tube connects, 6 the other end connects with the inlet pipeline 7 and the outlet conduit 8 of outside respectively, measuring tube is enclosed within the outer tube, like this, at measuring tube, form the space of a sealing between elastic tube and the outer tube, longitudinal length is about 1580mm, be full of the chilled water of antifreezing and anti-rust in this space, the dewatering orifice is equipped with in the bottom surface of outer tube, has two covers to support the pin-lift arrangement of measuring tube.The horizontal both sides of one end position of measuring tube connect with outer tube by bearing 9,10, and the other end position of measuring tube is connected with weight detecting mechanism by pull bar, and like this, measuring tube just may center on the axis of two bearings formation to be swung, and constitute a suspended structure.Said weight detecting mechanism comprises support 11, lever 12, force cell 13, pull bar 14,15, said support is installed on the outer tube, lever is installed in the upper end of support, one end cylinder lever connecting rod of lever, pull bar passes outer tube and is connected with measuring tube, between the other end position of lever and the outer tube force cell is installed.Said pull bar comprises upper connecting rod 14 and lower link 15, and upper connecting rod one end connects the top of measuring tube, and the other end connects lever, and lower link one end connects the bottom of measuring tube, and the other end is installed on the outer tube.
In the said Compensation Regulation mechanism chilled water pressure Compensation Regulation mechanism between a measuring tube and the outer tube is set, comprise a pressure synchronizer 16, this pressure synchronizer one end is connected with pipeline, and the other end is connected with chilled water space between measuring tube and the outer tube by pipeline.Said pressure synchronizer is a tubular structure, inside have a cap shape resilient sleeve 17 up and down space sealing separately, the lower end is connected with pipeline, the upper end is connected with chilled water space between measuring tube and the outer tube by pipeline.
Be provided with one in the said Compensation Regulation mechanism and measure weight detecting mechanism Temperature Compensation governor motion, comprise a temperature sensor 18, said temperature sensor probe is installed on the parts of weight detecting mechanism, as rack-mount, temperature sensor is delivered to the electric control measuring system with the temperature signal that records, and the Industrial Control Computer in the electric control measuring system compensates according to variation of temperature.
The Compensation Regulation mechanism of one measuring channel hydrodynamic pressure is set in the said Compensation Regulation mechanism, comprise a pressure transducer 19, said pressure transducer is installed on the outer tube, pressure transducer changes the pressure in the chilled water between the measuring tube that records and the outer tube and is delivered to the electric control measuring system, because the hydrodynamic pressure of flowing through in this pressure and the measuring tube is synchronously consistent, the Industrial Control Computer in the electric control measuring system compensates according to the variation of pressure.
Said electric control measuring system also includes: a doppler ultrasound flow velocity probe 20; One is made up of micromotor 21, offset cam 22, balance foundary weight 23 and cooperates the stabiloity compensation regulating device that constitutes with force cell; The one anti-vibration compensation adjustment device that constitutes by micromotor 24, offset cam 25, standard weights foundary weight 26; And various signals are carried out Industrial Control Computer of control and treatment etc.
Principle of work and process are as follows:
Under the effect of fluid at pressure, enter into measuring tube from the inlet pipeline of outside, homophase flow of material body is not when measuring tube, the concentration of certain phase material changes continuously, measuring tube inner fluid weight is also continuously along with change, this variation is passed to lever by upper connecting rod and is passed to force cell again, and force cell passes to Industrial Control Computer by signal wire with signal again.Ultrasonic Doppler probe is adsorbed on the outside inlet pipeline, can the continuous detecting flow rate of fluid.Had flow velocity that the time of fluid through measuring tube has just been arranged, force cell can obtain the momentum area and the N of fluid, can measure the volumetric flow rate of fluid like this; In order to prevent that variation of temperature from causing the variation of lever and frame, cause the detection error, the temperature sensor probe that is equipped with on lever passes to Industrial Control Computer with temperature variation and compensates processing; Force cell and amplifier can produce temperature waft and the time waft, can cause the error of accuracy of detection like this, by micromotor 21, offset cam 22, balance foundary weight 23 is formed the stabiloity compensation regulating device that cooperates formation with force cell, constituted and unloaded compensation mechanism in short-term, when the pipeline inner fluid is one matter, by 21 timings of Industrial Control Computer control micromotor or not timing offset cam 22 is rotated, the balance foundary weight 23 of lever front end is depressed by trace, after reset at any time, force cell produces unloading in short-term like this, Industrial Control Computer can obtain corresponding signal, again with standard signal relatively and compensate, output during the unloading is calculated output by the fluid concentrations of preceding moment of unloading, and this stabiloity compensation can be regarded approximate online compensation as; For the wearing and tearing that overcome measuring tube, elastic tube, vibration, swing, impact and the working pressure of complete unit are pulsed to the influence of accuracy of detection, in pick-up unit, be equipped with from mark system, the i.e. anti-vibration compensation adjustment device that constitutes by micromotor 24, offset cam 25, standard weights foundary weight 26, when no fluid or fluid do not change in measuring tube, control instrument is given micromotor 24 with signal, offset cam 25 is rotated, the balance foundary weight 23 of standard weights foundary weight 26 depress lever rear ends, produce signal value, compare with standard value again, revise by industrial computer; In addition, fluid pressure when motion changes, and pressure transducer passes to Industrial Control Computer with the manifold pressure variable signal, and by routine processes, the influence that pressure is changed accuracy of detection reduces to minimum.Upper and lower pull bar in the measuring tube can cause measuring tube to produce upper and lower imbalance in the back that is stressed, and has preset the pressure equilibrium table in control instrument, and its imbalance is revised; The pressure of liquid of pipeline of flowing through changes; the external and internal pressure of measuring tube and elastic tube is exactly different like this; and change; but the difference of such external and internal pressure will influence the distortion of measuring tube and elastic tube; influence the measuring accuracy of device; so must manage to make the external and internal pressure of measuring tube and elastic tube to be consistent; this pressure synchronizer by tubular structure is protected; fluid pressure one in the pipeline changes; cap shape resilient sleeve also will deform; the chilled water that makes cylindrical body top enters or withdraws from the space of measuring tube and outer tube with the variation of cap shape resilient sleeve, thereby the pressure of pressure in the chilled water and pipeline inner fluid is consistent.The setting of the physical construction of above-mentioned device and Compensation Regulation mechanism has guaranteed the high precision and the high reliability of measurement device.
Claims (8)
1, a kind of pipeline fluid pick-up unit, comprise measuring tube, elastic tube, outer tube, weight detecting mechanism, Compensation Regulation mechanism, electric control measuring system, the two ends of measuring tube connect with elastic tube, the other end of the left and right sides stationary pipes that elastic tube connects connects with the inlet pipeline and the outlet conduit of outside respectively, measuring tube is enclosed within the outer tube, it is characterized in that: the horizontal both sides of an end position of said measuring tube connect with outer tube by bearing, and the other end position of measuring tube is connected with weight detecting mechanism by pull bar.
2, pipeline fluid pick-up unit according to claim 1, it is characterized in that: said weight detecting mechanism comprises support, lever, force cell, pull bar, said support is installed on the outer tube, lever is installed in the upper end of support, one end cylinder lever connecting rod of lever, pull bar passes outer tube and is connected with measuring tube, between the other end position of lever and the outer tube force cell is installed.
3, pipeline fluid pick-up unit according to claim 1 and 2, it is characterized in that: said pull bar comprises upper connecting rod and lower link, and upper connecting rod one end connects the top of measuring tube, and the other end connects lever, lower link one end connects the bottom of measuring tube, and the other end is installed on the outer tube.
4, pipeline fluid pick-up unit according to claim 1, it is characterized in that: in the said Compensation Regulation mechanism chilled water pressure Compensation Regulation mechanism between a measuring tube and the outer tube is set, comprise a pressure synchronizer, this pressure synchronizer one end is connected with pipeline, and the other end is connected with chilled water space between the outer tube by pipeline and measuring tube.
5, pipeline fluid pick-up unit according to claim 4, it is characterized in that: said pressure synchronizer is a tubular structure, inside has a cap shape resilient sleeve to incite somebody to action up and down, and space sealing separates, the lower end is connected with pipeline, and the upper end is connected with chilled water space between measuring tube and the outer tube by pipeline.
6, pipeline fluid pick-up unit according to claim 1, it is characterized in that: be provided with one in the said Compensation Regulation mechanism and measure weight detecting mechanism Temperature Compensation governor motion, comprise a temperature sensor, said temperature sensor probe is installed on the parts of weight detecting mechanism, temperature sensor is delivered to the electric control measuring system with the temperature signal that records, and the Industrial Control Computer in the electric control measuring system compensates according to variation of temperature.
7, pipeline fluid pick-up unit according to claim 1, it is characterized in that: the Compensation Regulation mechanism that a measuring channel hydrodynamic pressure is set in the said Compensation Regulation mechanism, comprise a pressure transducer, said pressure transducer is installed on the outer tube, pressure transducer changes the pressure in the chilled water between the measuring tube that records and the outer tube and is delivered to the electric control measuring system, and the Industrial Control Computer in the electric control measuring system compensates according to the variation of pressure.
8, pipeline fluid pick-up unit according to claim 1 is characterized in that: said electric control measuring system also comprises: (1) one doppler ultrasound flow velocity probe; (2) one are made up of micromotor, offset cam, balance foundary weight and cooperate the stabiloity compensation regulating device that constitutes with force cell; (3) the one anti-vibration compensation adjustment devices that constitute by micromotor, offset cam, standard weights foundary weight; (4) various signals are carried out the Industrial Control Computer of control and treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159331 CN200993582Y (en) | 2006-11-20 | 2006-11-20 | Pipeline fluid detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159331 CN200993582Y (en) | 2006-11-20 | 2006-11-20 | Pipeline fluid detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993582Y true CN200993582Y (en) | 2007-12-19 |
Family
ID=38946656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620159331 Expired - Fee Related CN200993582Y (en) | 2006-11-20 | 2006-11-20 | Pipeline fluid detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993582Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060057A (en) * | 2018-09-30 | 2018-12-21 | 郑州忠林智能科技有限公司 | The volumetric metering station of high degree of automation |
| CN109114432A (en) * | 2018-09-30 | 2019-01-01 | 郑州忠林智能科技有限公司 | The volumetric metering station of the individual well form of high degree of automation |
-
2006
- 2006-11-20 CN CN 200620159331 patent/CN200993582Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060057A (en) * | 2018-09-30 | 2018-12-21 | 郑州忠林智能科技有限公司 | The volumetric metering station of high degree of automation |
| CN109114432A (en) * | 2018-09-30 | 2019-01-01 | 郑州忠林智能科技有限公司 | The volumetric metering station of the individual well form of high degree of automation |
| CN109114432B (en) * | 2018-09-30 | 2024-04-23 | 郑州忠林智能科技有限公司 | Volumetric metering station in the form of a single well with a high degree of automation |
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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: 20071219 Termination date: 20111120 |