CN2718526Y

CN2718526Y - Anti-plugging turbine flowmeter

Info

Publication number: CN2718526Y
Application number: CN 200420011034
Authority: CN
Inventors: 石凤岐; 胡念东; 常伟; 魏效华; 李强; 刘予阳
Original assignee: 石凤岐
Priority date: 2004-06-09
Filing date: 2004-06-09
Publication date: 2005-08-17
Anticipated expiration: 2014-06-09

Abstract

The utility model discloses an anti-plugging turbine flow meter, comprising a turbine housing body, a blade wheel and a signal generator interface. The blade wheel is arranged at one side of the turbine housing body, and is parallel to the axial cord of the turbine housing body. Since the contact area of the blade wheel of the turbine flow meter and fluid is reduced by seventy percent than the contact area of the primary blade wheel and the fluid, the anti-plugging turbine flow meter effectively solves the problem of plugging in cementing construction caused by excessive impurities contained in the fluid. The anti-plugging turbine flow meter ensures the continuity of the cementing construction, and the metering accuracy; thus, the anti-plugging turbine flow meter eliminates the incipient fault of the serious accidents of cementing interruption, plugging pumps, etc, caused by the flow meter, and ensures smooth cementing construction.

Description

The anti-plugging turbo flow meter

Technical field

The utility model belongs to industrial automation instrument, relates in particular to a kind of turbo flow meter.

Background technology

Well cementing operation is a continuous operations involving high pressure process, and Once you begin construction can't stop midway, and used pipeline, equipment and utensil all can not be with the pressure dismounting.In the process that guarantees cementing practice, grout and mud metering are the important measures of well cementing operation safe construction, and turbo flow meter is the important means of metering.Turbo flow meter is installed in well cementation with between plug container and the grey pipeline of notes, the turbo flow meter that uses is straight core type at present, as Fig. 1, shown in Figure 2, in annotating grey process, mud is by the blade of impulse turbine flowmeter, cause wheel rotation, be transformed into electric signal by wheel rotation and measure, because impeller becomes plumbness with the axis of turbine shroud, and turbo blade is big, be directly installed on housing central authorities, impeller occupies the space in housing big, and when fluid passed through, the impurity in the fluid was easy to stop up turbine shroud, cause the metering failure, can cause great cementing quality accident when serious.

Summary of the invention

The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of anti-plugging turbo flow meter is provided.

The purpose of this utility model is achieved in that the anti-plugging turbo flow meter is made up of turbine shroud, impeller, signal generator interface, and impeller is contained in a side of turbine shroud, and the axis of impeller and turbine shroud is parastate.

Impeller of the present utility model is installed in one side of turbine shroud and is parastate with the axis of turbine shroud, impeller and fluid contact area than original minimizing 70%, thereby efficiently solve cementing operation because of containing the more stifled card problem that causes of foreign material in the fluid, guaranteed the continuity of cementing operation, guaranteed the accuracy of metering, thereby eliminated major accident hidden danger such as the well cementation interruption that causes because of the flowmeter problem, the pump of spraining, guaranteed carrying out smoothly of cementing operation.

Description of drawings

Fig. 1: existing turbo flow meter structural representation; Fig. 2: existing turbo flow meter cut-open view;

Fig. 3: the utility model structural representation;

Among the figure: 1-turbine shroud, 2-impeller, 3-signal generator interface;

Embodiment

As shown in Figure 3, the anti-plugging turbo flow meter is made up of turbine shroud 1, impeller 2, signal generator interface 3, and impeller 2 is contained in a side of turbine shroud 1, and impeller 2 is parastate with the axis of turbine shroud 1.

Improved turbo flow meter, impeller has reduced 70% with the fluid contact area than original impeller, be parastate with the axis of turbine shroud, and impeller is installed in one side of turbine shroud, impeller blade only exposes 40% of impeller in housing, the flow velocity of considering the fluid edge is different with the flow velocity of central authorities, repeatedly the experiment flow coefficient of discharge has made 6400 commentaries on classics/m3 into by 7000 original commentaries on classics/m3 through the scene, through a large amount of practices, the accurate measurement rate does not descend, and having eliminated the well cementation that causes because of flowmeter interrupts, the major accident hidden danger such as pump of spraining are guaranteed carrying out smoothly of cementing operation.

Claims

1, a kind of anti-plugging turbo flow meter, it is made up of turbine shroud (1), impeller (2), signal generator interface (3), it is characterized in that: impeller (2) is contained in a side of turbine shroud (1), and impeller (2) is parastate with the axis of turbine shroud (1).