CN108168654A - Float gauge anti-slag device - Google Patents

Abstract

The invention relates to a slag prevention device, in particular to a slag prevention device for a float water level gauge, which includes a filter mechanism and an even number of vertical limit components arranged on the installation base of the water level gauge; The filter frame, the filter screen fixed on the filter frame, and the float ball fixed on the filter frame; the vertical limit assembly includes a guide tube fixed on the side of the filter frame, and one end is set on the water level gauge installation base, The other end passes through the guide pipe and fixes the guide rope of the counterweight; the guide rope is perpendicular to the water surface, the counterweight is located at the bottom of the water, and the guide rope does not generate tension on the counterweight. Under the action of water buoyancy, the filter frame is limited Move vertically up and down along the guide rope; the water level gauge float is located in the filter frame. The slag preventing device has a simple structure and can effectively prevent sundries from affecting the float water level gauge.

Description

Anti-slag device for float water level gauge

technical field

The invention relates to a slag preventing device, in particular to a slag preventing device for a float water level gauge.

Background technique

The float water level gauge is composed of a float, a suspension cable, a counterweight, a water level wheel, a water level sensor, a bracket, and an interface plate. Using the principle of buoyancy, when the water level rises, the float generates upward buoyancy, so that the counterweight pulls the suspension cable to drive the water level wheel to operate. Rotating clockwise, the display reading of the water level sensor increases; when the water level drops, the float sinks, pulling the suspension cable drives the water level wheel to rotate counterclockwise, and the display reading of the water level sensor decreases.

The float water level gauge is widely used in the water level station on the dam of the hydropower station, and the water level station on the dam is an important reservoir water level control station of the hydropower station. In order to save investment costs, the interlayer of hydraulic structures such as dams and water inlets can be fully used as water level logging. A dedicated water level logging well is not built separately. However, this water level logging is an open logging well, and the residue and sundries on the slope are easily washed into the logging well by rainwater, covered on the float of the water level gauge or wrapped around the wire rope, causing the balance measurement system of the water level gauge to be destroyed , causing the steel wire rope of the water level gauge to be entangled, stuck, chute and other failure phenomena, and the measurement accuracy of the water level has a large error, which has a great impact on the safety of the hydropower station's flood control and the economic and rational operation of the reservoir.

Contents of the invention

The technical problem to be solved by the present invention is to provide an anti-slag device that can effectively prevent debris from affecting the float water level gauge.

In order to solve the problems of the technologies described above, the technical solution of the present invention is:

The anti-slag device of the float water level gauge includes a filter mechanism and an even number of vertical limit assemblies arranged on the installation base of the water level gauge; the filter mechanism includes a filter frame with upper and lower openings, a filter screen fixed on the filter frame, and The floating ball fixed on the filter frame; the vertical limit assembly includes a guide tube fixed on the side of the filter frame, one end is set on the installation base of the water level gauge, and the other end passes through the guide tube and is fixed with a counterweight Guide rope; the guide rope is perpendicular to the water surface, the counterweight is located at the bottom of the water, and the guide rope does not generate tension on the counterweight, and under the action of water buoyancy, the filter frame is restricted from moving vertically up and down along the guide rope; the water level gauge float is located on the within the filter frame.

The anti-slag device of the float water level gauge mentioned above has a simple structure, and the debris is isolated through the filter screen on the filter frame, so that the debris will no longer have a serious impact on the float water level gauge, and the accuracy of water level measurement is greatly improved; at the same time , the vertical limit assembly restricts the filter frame to move up and down almost only along the guide rope, and will not affect the float water level gauge in the filter frame.

Because the anti-slag device is immersed in water for a long time, in order to prevent corrosion and reduce maintenance work in the later period, the filter frame, filter screen, floating ball and guide pipe are all made of stainless steel.

Further, in order to prevent the influence of external conditions on the device, the filter frame is cylindrical, and its size is mainly determined according to the actual size on site or the installation requirements of the water level gauge. Generally, the inner diameter is 1000mm-1200mm, and the height is 350mm-550mm.

Further, in order to prevent the device from affecting the float water level gauge, the filter frame is cylindrical, the inner diameter is at least 300 mm larger than the distance between the float of the water level gauge and the counterweight, and the height is 350 mm to 550 mm.

Further, in order to keep the device floating on the water in a balanced manner, the number of the floating balls is an even number, and they are evenly spaced on the outside of the filter frame.

Further, in order to prevent the service life of the floating ball being fixed on the filter frame from being affected, the filter mechanism further includes a hemispherical cover fixedly connected with the filter frame; the floating ball is arranged in the hemispherical cover.

Further, in order to enable the filter frame to move up and down smoothly when the water level changes, the guide pipe has an inner diameter of 20mm-30mm and is evenly spaced outside the filter frame.

Further, in order to adjust the guide rope very conveniently, the vertical limit assembly further includes an adjustment rod arranged on the installation base of the water level gauge and used for adjusting the guide rope.

Further, for the convenience of installation, the vertical limit assembly also includes a mounting bracket fixed on the installation base of the water level gauge; the upper end of the guide rope is set on the mounting bracket.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the filtering mechanism of the present invention.

In the figure, 10-filter mechanism, 11-filter frame, 12-filter net, 13-floating ball, 20-vertical limit assembly, 21-guide tube, 22-counterweight, 23-guide rope, 24-installation Bracket, 25-adjusting rod, 30-water level runner, 40-water level gauge wire rope, 50-water level gauge float, 60-counterweight, S-water level gauge installation base.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

As shown in Figures 1 and 2, the slag prevention device for float water level gauges includes a filter mechanism 10, and two sets of vertical limit assemblies 20 located on the water level gauge mounting base S; the filter mechanism 10 includes a cylindrical filter The frame 11, the filter screen 12 fixed on the filter frame 11, and four floats 13 evenly spaced and fixed on the outside of the filter frame 11; the vertical limit assembly 20 includes a guide pipe 21 fixed on the side of the filter frame 11, And one end is arranged on the installation base S of the water level gauge, and the other end passes through the guide pipe 21 and the guide rope 23 of the counterweight 22 is fixed; Outside: the guide rope 23 is perpendicular to the water surface, the counterweight 22 is located at the bottom of the water, and the guide rope 23 does not generate tension on the counterweight 22. Under the effect of water buoyancy, the filter frame 11 is limited to move vertically up and down along the guide rope 23.

The above-mentioned float water level gauge comprises a water level runner 30 fixed on the water level gauge mounting base S, a water level gauge wire rope 40 wound on the water level runner 30, and a water level gauge float 50 and a balancer fixed at both ends of the water level gauge steel wire rope 40. The hammer 60 ; the water level gauge float 50 is located in the filter frame 11 .

Further, the inner diameter of the filter frame 11 is at least 300mm larger than the distance between the water level gauge float 50 and the counterweight 60 , generally speaking, the inner diameter is 1000mm-1200mm, and the height is 350mm-550mm.

Further, in other embodiments, the filter mechanism 10 further includes a hemispherical cover (not shown in the figure) fixedly connected with the filter frame 11; the floating ball 13 is arranged in the hemispherical cover.

Further, in other embodiments, the vertical limit assembly 20 further includes a mounting bracket 24 fixed on the installation base S of the water level gauge, and an adjusting rod 25 disposed on the mounting bracket 24 and used for adjusting the guide rope 23 .

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and modifications to these embodiments still fall within the protection scope of the present invention.

Claims (8)

1. The anti-slag device of the float water level gauge is characterized in that it includes a filter mechanism and an even number of vertical limit components arranged on the installation base of the water level gauge; the filter mechanism includes a filter frame with upper and lower openings, fixed on the filter The filter screen of the frame, and the floating ball fixed on the filter frame; the vertical limit assembly includes a guide tube fixed on the side of the filter frame, and one end is arranged on the water level gauge installation base, and the other end passes through the guide tube and The guide rope of the counterweight is fixed; the guide rope is perpendicular to the water surface, the counterweight is located at the bottom of the water, and the guide rope does not generate tension on the counterweight, and under the action of water buoyancy, the filter frame is restricted from moving vertically up and down along the guide rope; A water level gauge float is located within the filter frame. 2. The anti-slag device for float water level gauge according to claim 1, characterized in that: the filter frame is cylindrical, with an inner diameter of 1000mm-1200mm and a height of 350mm-550mm. 3. The anti-slag device for float water level gauge according to claim 1, characterized in that: the filter frame is cylindrical, the inner diameter is at least 300mm larger than the distance between the float of the water level gauge and the counterweight, and the height is 350mm~550mm . 4. The anti-slag device of the float water level gauge according to claim 1, characterized in that: the number of the floating balls is an even number, and they are evenly spaced on the outside of the filter frame. 5. The anti-slag device of the float water level gauge according to claim 4, characterized in that: the filter mechanism further comprises a hemispherical cover fixedly connected with the filter frame; the floating ball is arranged in the hemispherical cover. 6 . The anti-slag device for float water level gauge according to claim 1 , characterized in that: the inner diameter of the guide pipe is 20 mm to 30 mm, and it is evenly spaced on the outside of the filter frame. 7 . 7. The anti-slag device of the float water level gauge according to claim 1, characterized in that: the vertical limit assembly further comprises an adjustment rod provided on the installation base of the water level gauge and used for adjusting the guide rope. 8. The anti-slag device of the float water level gauge according to claim 1, characterized in that: the vertical limit assembly also includes a mounting bracket fixed on the installation base of the water level gauge; the upper end of the guide rope is set on the the mounting bracket described above.