阅读说明：本技术 能够适用于浑浊介质的水流指示器 (Water flow indicator applicable to turbid media ) 是由 严洪新 于 2020-04-22 设计创作，主要内容包括：本发明涉及水流指示器,特别涉及一种能够适用于浑浊介质的水流指示器。其包括阀体,所述阀体内设有指示叶轮,所述指示叶轮中心固接在轴套上,轴套转动连接在固定轴上,所述轴套上固接辅助叶轮,辅助叶轮位于第一观察窗内侧,所述辅助叶轮包括至少一个辅助叶片,辅助叶片为平直薄片结构,辅助叶片的大面积端面面向第一观察窗。本发明通过辅助叶轮的设置,使得水流指示器在管道内流动的介质为清澈和浑浊的情况下均能够清楚指示管道内介质的流动通畅性,扩大了使用范围。(The present invention relates to a water flow indicator, and more particularly to a water flow indicator that can be adapted for use with turbid media. The indicating impeller is arranged in the valve body, the center of the indicating impeller is fixedly connected to a shaft sleeve, the shaft sleeve is rotatably connected to a fixed shaft, an auxiliary impeller is fixedly connected to the shaft sleeve and located on the inner side of a first observation window, the auxiliary impeller comprises at least one auxiliary blade, the auxiliary blade is of a straight thin sheet structure, and the large-area end face of the auxiliary blade faces the first observation window. According to the invention, through the arrangement of the auxiliary impeller, the water flow indicator can clearly indicate the flowing smoothness of the medium in the pipeline under the condition that the medium flowing in the pipeline is clear or turbid, and the application range is enlarged.)

1. A water flow indicator applicable to turbid media comprises a valve body (1), wherein a first pipeline (2) and a second pipeline (3) are symmetrically arranged on the upper side and the lower side of the valve body (1), one end of the first pipeline (2) is communicated with a valve cavity in the valve body (1), the other end of the first pipeline is connected with a first flange (4), one end of the second pipeline (3) is communicated with the valve cavity in the valve body (1), and the other end of the second pipeline is connected with a second flange (5); the front side and the rear side of the valve body (1) are detachably connected with a first cover body (8) and a second cover body (9) through connecting pieces, a transparent first observation window (10) is fixed at the center of the first cover body (8), and a transparent second observation window (11) is fixed at the center of the second cover body (9); be equipped with in valve body (1) and instruct impeller (12), instruct impeller (12) to be located the central axis of first pipeline (2) and second pipeline (3), instruct impeller (12) center rigid coupling on axle sleeve (7), axle sleeve (7) rotate to be connected on fixed axle (6), first observation window (10) are equipped with first installation blind hole towards fixed axle (6) one end center, and second observation window (11) are equipped with second installation blind hole towards fixed axle (6) one end center, fixed axle (6) both ends clamp respectively in first installation blind hole and second installation blind hole, its characterized in that: the improved structure of the high-power high-speed motor is characterized in that an auxiliary impeller (15) is fixedly connected to the shaft sleeve (7), the auxiliary impeller (15) is located on the inner side of the first observation window (10), the auxiliary impeller (15) comprises at least one auxiliary blade (16), the auxiliary blade (16) is of a straight thin sheet structure, and the large-area end face of the auxiliary blade (16) faces the first observation window (10).

2. A water flow indicator suitable for use with turbid media according to claim 1, wherein: a first sealing ring is arranged between the first cover body (8) and the valve body (1), and a second sealing ring is arranged between the second cover body (9) and the valve body (1).

3. A water flow indicator suitable for use with turbid media according to claim 1, wherein: the fixed shaft (6) is provided with a limiting boss (20) facing one end of the second observation window (11) along the circumferential direction, and the shaft sleeve (7) is in contact with the limiting boss (20) facing one side end face of the second observation window (11).

4. A water flow indicator suitable for use with turbid media according to claim 1, wherein: at least one lightening groove (17) is formed in the shaft sleeve (7) along the circumferential direction, and the lightening groove (17) is located between the indicating impeller (12) and the auxiliary impeller (15).

5. A water flow indicator suitable for use with turbid media according to claim 1, wherein: the auxiliary impeller (15) has a smaller radius of rotation than the indicator impeller (12).

6. A water flow indicator suitable for use with turbid media according to claim 1, wherein: the auxiliary blade (16) is connected with the inner magnetic sheet (18) through a positioning pin facing the end face of the first observation window (10), an outer auxiliary impeller (21) is arranged on one side, back to the auxiliary blade (16), of the first observation window (10), the outer auxiliary impeller (21) is rotatably connected onto an outer rotating shaft (23) through a bearing, one end of the outer rotating shaft (23) is fixedly connected with the center of the first observation window (11), the outer auxiliary impeller (21) comprises at least one outer auxiliary blade (22), the outer auxiliary blade (22) and the auxiliary blade (16) are arranged in a one-to-one inside-outside correspondence mode, the outer auxiliary blade (22) is of a straight thin sheet structure, the outer auxiliary blade (22) is connected with the outer magnetic sheet (19) through a positioning pin facing the end face of one side of the auxiliary blade (16), and the outer magnetic sheet (19) and the.

7. A water flow indicator suitable for use with turbid media according to claim 6, wherein: the rotation radius of the outer auxiliary impeller (21) is the same as that of the auxiliary impeller (15).

8. A water flow indicator suitable for use with turbid media according to claim 6 or 7, wherein: the outer auxiliary impeller (21) is positioned in a transparent impeller shell (24), the outer rotating shaft (23) is fixedly connected with the impeller shell (24), the impeller shell (24) is fixed on the surface of the first observation window (10), and the impeller shell (24) is vacuumized.

Technical Field

The present invention relates to a water flow indicator, and more particularly to a water flow indicator that can be adapted for use with turbid media.

Background

The water flow indicator is used in compressor, heat exchanger, central air conditioner and water or liquid circulating equipment in petrochemical, oil refining, smelting, steel, power generating and other industries, and is used mainly in observing the flow state and flow rate of liquid or gas medium in screw thread, flange, welding and other connection modes.

Disclosure of Invention

The invention aims to provide a water flow indicator suitable for turbid media, which can clearly indicate the flowing smoothness of media in a pipeline under the conditions of clarity and turbidity of the media flowing in the pipeline and enlarge the application range.

The technical purpose of the invention is realized by the following technical scheme:

a water flow indicator applicable to turbid media comprises a valve body, wherein a first pipeline and a second pipeline are symmetrically arranged on the upper side and the lower side of the valve body, one end of the first pipeline is communicated with a valve cavity in the valve body, the other end of the first pipeline is connected with a first flange, one end of the second pipeline is communicated with the valve cavity in the valve body, and the other end of the second pipeline is connected with a second flange; the front side and the rear side of the valve body are detachably connected with a first cover body and a second cover body through connecting pieces, a transparent first observation window is fixed in the center of the first cover body, and a transparent second observation window is fixed in the center of the second cover body; the indicating impeller is arranged in the valve body and located on a central axis of the first pipeline and a central axis of the second pipeline, the center of the indicating impeller is fixedly connected to the shaft sleeve, the shaft sleeve is rotatably connected to the fixed shaft, the first observation window is provided with a first installation blind hole towards the center of one end of the fixed shaft, the second observation window is provided with a second installation blind hole towards the center of one end of the fixed shaft, two ends of the fixed shaft are respectively clamped in the first installation blind hole and the second installation blind hole, the shaft sleeve is fixedly connected with an auxiliary impeller, the auxiliary impeller is located on the inner side of the first observation window, the auxiliary impeller comprises at least one auxiliary blade, the auxiliary blade is of a straight thin-sheet structure, and the end face of the auxiliary blade faces.

Through adopting above-mentioned technical scheme, when the medium that flows in the valve body is muddy, the rotation condition of unable direct observation instruction impeller, supplementary impeller and instruction impeller set up synchronous rotation on the axle sleeve jointly, only very little clearance between supplementary impeller and the first observation window, there is the medium between supplementary impeller and the first observation window can be very little, people passes through the rotation condition of observing supplementary impeller that first observation window can be clear, thereby indirect judgement instructs the rotation condition of impeller, make the water flow indicator all can clearly instruct the unobstructed nature of the flow of medium in the pipeline for under the condition of limpid and muddy medium in the pipeline, application range has been enlarged.

Furthermore, a first sealing ring is arranged between the first cover body and the valve body, and a second sealing ring is arranged between the second cover body and the valve body.

Through adopting above-mentioned technical scheme, first sealing washer can improve the leakproofness between first lid and the valve body, and the leakproofness between second lid and the valve body can be improved to the second sealing washer.

Furthermore, the fixed shaft is provided with a limiting boss facing one end of the second observation window along the circumferential direction, and the shaft sleeve is in contact with the limiting boss facing one side end face of the second observation window.

Through adopting above-mentioned technical scheme, the axial position of axle sleeve can be restricted to spacing boss, avoids the axle sleeve to move along fixed axle axial.

Furthermore, at least one weight reduction groove is formed in the shaft sleeve in the circumferential direction, and the weight reduction groove is located between the indicating impeller and the auxiliary impeller.

Through adopting above-mentioned technical scheme, subtract the weight that the weight groove can alleviate the axle sleeve, let the medium can easily drive and instruct impeller and supplementary impeller to rotate together.

Further, the auxiliary impeller has a smaller radius of rotation than the indicator impeller.

By adopting the technical scheme, the auxiliary impeller with smaller size can not shield the indicating impeller, and simultaneously, the auxiliary impeller with smaller size can drive the indicating impeller and the auxiliary impeller to rotate together by the medium.

Furthermore, the end face, facing the first observation window, of the auxiliary blade is connected with the inner magnetic sheet through a positioning pin, one side, facing away from the auxiliary blade, of the first observation window is provided with an outer auxiliary impeller, the outer auxiliary impeller is rotatably connected onto an outer rotating shaft through a bearing, one end of the outer rotating shaft is fixedly connected with the center of the first observation window, the outer auxiliary impeller comprises at least one outer auxiliary blade, the outer auxiliary blade and the auxiliary blade are arranged in a one-to-one inside-outside correspondence mode, the outer auxiliary blade is of a straight thin sheet structure, the end face, facing the auxiliary blade, of the outer auxiliary blade is connected with the outer magnetic sheet through the positioning pin, and the.

Through adopting above-mentioned technical scheme, the medium flow drives the instruction impeller and rotates in the valve body, instructs the impeller to pass through the axle sleeve and drives auxiliary impeller and rotate together, though only very little clearance between auxiliary impeller and the first observation window, the medium that exists between auxiliary impeller and the first observation window can be very few, but if the concentration of medium is very high, still can influence the rotation condition of observing auxiliary impeller. In order to solve the problem, an outer auxiliary impeller is arranged outside the first observation window, the auxiliary impeller drives the outer auxiliary impeller to synchronously rotate through the magnetic attraction of the outer magnetic sheet and the inner magnetic sheet, the outer auxiliary impeller is not influenced by the state of a medium in the valve body, and the flowing smoothness of the medium in the valve body can be indirectly and clearly indicated.

Further, the rotation radius of the outer auxiliary impeller is the same as that of the auxiliary impeller.

Through adopting above-mentioned technical scheme, supplementary impeller can be relaxed drives outer supplementary impeller and rotates.

Furthermore, the outer auxiliary impeller is positioned in a transparent impeller shell, the outer rotating shaft is fixedly connected with the impeller shell, the impeller shell is fixed on the surface of the first observation window, and the impeller shell is internally vacuumized.

By adopting the technical scheme, the impeller shell can protect the outer auxiliary impeller from being damaged.

In conclusion, the invention has the following beneficial effects:

1. by the arrangement of the auxiliary impeller, the water flow indicator can clearly indicate the flowing smoothness of the medium in the pipeline under the condition that the medium flowing in the pipeline is clear or turbid, and the application range is enlarged;

2. the outer auxiliary impeller is arranged, so that the indicating effect of the water flow indicator is not influenced by the turbidity degree of the medium;

3. the auxiliary impeller can be prevented from shielding the indicating impeller by setting the rotating radius of the auxiliary impeller to be smaller than that of the indicating impeller.

Drawings

FIG. 1 is a rear perspective view of the first embodiment;

FIG. 2 is a front perspective view of a second embodiment;

FIG. 3 is a diagram illustrating the assembly relationship between the indicating impeller and the auxiliary impeller in the first embodiment.

Fig. 4 is a front view of the second embodiment.

Fig. 5 is a diagram of the assembly relationship between the auxiliary impeller and the outer auxiliary impeller in the second embodiment.

Fig. 6 is a perspective view of an outer auxiliary impeller in the second embodiment.

In the figure, 1, a valve body; 2. a first conduit; 3. a second conduit; 4. a first flange; 5. a second flange; 6. a fixed shaft; 7. a shaft sleeve; 8. a first cover body; 9. a second cover body; 10. a first observation window; 11. a second observation window; 12. an indicating impeller; 15. an auxiliary impeller; 16. an auxiliary blade; 17. a weight reduction groove; 18. an inner magnetic sheet; 19. an outer magnetic sheet; 20. a limiting boss; 21. an outer auxiliary impeller; 22. an outer auxiliary blade; 23. an outer rotating shaft; 24. an impeller shell.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.