Liquid flowmeter with filtering function

Abstract

The utility model discloses a fluid flowmeter with a filtering function, which belongs to the technical field of blow-down valves, and comprises a flowmeter main body and a filtering pipe fixed on the flowmeter main body, one end of the filtering pipe is embedded and fixed with a filtering net, the other end of the filtering pipe is provided with a one-way valve, and the one-way valve is arranged on the flowmeter main body. A spoiler is fixed to the center of the inner wall of the filter pipe, a sewage discharge box located between the spoiler and the filter screen is fixed to the bottom end of the outer wall of the filter pipe, a sealing plate is fixedly embedded in the bottom end of the sewage discharge box, second flanges are arranged at the two ends of the flowmeter body, and a display part is arranged at the top end of the flowmeter body. First flanges are arranged at the two ends of the filter pipe, and fastening bolts are embedded in the first flanges in an annular array. According to the fluid flowmeter with the filtering function, water flow rushes to the filter screen from different angles, the situation that the filter screen is blocked is reduced, and the cleaning period of the filter screen is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage valves, and in particular relates to a liquid flow meter with a filtering function. Background Art

[0002] Liquid turbine flowmeters are precision flow measurement instruments widely used in the fields of petroleum, chemical engineering, metallurgy, and scientific research. During use, impurities from the medium or during installation can enter the pipeline and cause wear or seizure of the turbine, bearings, or other components as they pass through the turbine flowmeter, complicating flow measurement.

[0003] The patent with application number 202122172160.2 discloses a liquid turbine flowmeter with a filtering mechanism, including a turbine flowmeter body and a connecting pipe, the turbine flowmeter body is provided on the connecting pipe, the flow display is provided on the turbine flowmeter body, a filter is provided inside the connecting pipe, a water retaining valve is provided at the water inlet end of the connecting pipe, a drain valve is provided on the connecting pipe between the water retaining valve and the filter, and connecting flanges are provided at both ends of the connecting pipe.

[0004] The above technical solution utilizes a filter to filter impurities in the liquid when the liquid flow meter is in use. However, the impurities are affected by the water flow and adsorbed on the surface of the filter, which causes the filter to be easily clogged and requires frequent cleaning of the filter. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a liquid flow meter with a filtering function, which aims to solve the technical problem that impurities in the existing technology are affected by the water flow and adsorbed on the surface of the filter net, thereby causing the filter net to be easily clogged and requiring frequent cleaning of the filter net.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a liquid flow meter with a filtering function, which includes a flow meter body and a filter tube fixed on the flow meter body, a filter screen embedded in one end of the filter tube, a one-way valve installed at the other end of the filter tube, and a spoiler fixed at the center position of the inner wall of the filter tube, wherein a sewage box located between the spoiler and the filter screen is fixed at the bottom end of the outer wall of the filter tube, and a sealing plate is embedded in the bottom end of the sewage box.

[0009] When using the liquid flow meter with a filtering function of the present technical solution, a filter tube is fixed on the side wall of the flow meter body, and the filter screen in the filter tube filters impurities in the pipeline. The one-way valve in the filter tube prevents the backflow of impurities. At the same time, a spoiler is embedded in the filter tube. The water flow is affected by the spoiler to form a vortex on the side wall of the filter screen, so that the water flow rushes to the filter screen from different angles, thereby greatly reducing the adsorption of impurities on the side wall of the filter screen. At the same time, heavy impurities fall into the sewage tank along the sewage trough. The water flows from different angles to the filter screen, reducing the clogging of the filter screen and the cleaning cycle of the filter screen; a sealing plate is provided at the bottom end of the sewage tank, and the knob bolt on the sealing plate is threadedly inserted into the screw hole to keep it fixed. At the same time, the sealing plate abuts against the sealing gasket to keep the bottom end of the sewage tank in a sealed state. When discharging sewage, the knob bolt is unscrewed to remove the sealing plate, and the filter tube is backflushed to clean the impurities remaining on the filter screen, thereby improving the convenience of sewage discharge of the liquid flow meter.

[0010] Preferably, second flanges are provided at both ends of the flow meter body, and a display portion is provided at the top of the flow meter body.

[0011] Furthermore, both ends of the filter tube are provided with a first flange, and the first flange is provided with fastening bolts embedded in a circular array.

[0012] Furthermore, the plurality of fastening bolts are all slidably inserted into the second flange, and one end of the fastening bolt passes through the second flange and is threadedly sleeved with a nut.

[0013] Furthermore, a sewage drain groove connected to the displacement box is provided on the inner wall of the flow meter body, the spoiler is a hemispherical structure, and a through hole is provided at the center of the spoiler.

[0014] Furthermore, a sealing gasket is embedded in the bottom end of the sewage box, and a screw hole penetrating the sealing gasket is opened on the bottom wall of the sewage box.

[0015] Furthermore, a plurality of fastening bolts are installed in a rectangular array at the bottom end of the sealing plate, and the fastening bolts pass through the sealing plate and are threadedly inserted into the screw holes.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model is provided with a filter tube fixed on the side wall of the flow meter body, and the filter screen in the filter tube filters the impurities in the pipeline. The one-way valve in the filter tube prevents the impurities from flowing back. At the same time, a spoiler is embedded in the filter tube. The water flow is affected by the spoiler to form eddy currents on the side wall of the filter screen, so that the water flow rushes to the filter screen from different angles, thereby greatly reducing the adsorption of impurities on the side wall of the filter screen. At the same time, heavy impurities fall into the sewage tank along the sewage trough. The water flow rushes to the filter screen from different angles, which reduces the clogging of the filter screen and the cleaning cycle of the filter screen.

[0019] By arranging a sealing plate at the bottom end of the sewage box, the knob bolt of the sealing plate is threadedly inserted into the screw hole to keep it fixed, and at the same time the sealing plate and the sealing gasket are abutted to keep the bottom end of the sewage box in a sealed state. When discharging sewage, the sealing plate is disassembled after unscrewing the knob bolt, and the filter tube is backflushed to clean the impurities remaining on the filter screen, thereby improving the convenience of sewage discharge of the liquid flow meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the filter tube in the utility model;

[0023] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at A in the middle;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter tube of the present invention.

[0025] The markings in the accompanying drawings are: 1. flow meter body; 2. fastening bolts; 3. filter tube; 4. first flange; 5. nut; 6. second flange; 7. display part; 8. one-way valve; 9. sealing plate; 10. drain box; 11. knob bolt; 12. screw hole; 13. sealing gasket; 14. spoiler; 15. drain trough; 16. filter screen. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] This specific embodiment is a liquid flow meter with a filtering function, and its structural diagram is as follows Figure 1 and Figure 4 As shown, the liquid flow meter with a filtering function includes a flow meter body 1 and a filter tube 3 fixed on the flow meter body 1, a filter screen 16 is embedded and fixed at one end of the filter tube 3, a one-way valve 8 is installed at the other end of the filter tube 3, and a spoiler 14 is fixed at the center position of the inner wall of the filter tube 3, wherein the bottom end of the outer wall of the filter tube 3 is fixed with a sewage box 10 located between the spoiler 14 and the filter screen 16, and a sealing plate 9 is embedded and fixed at the bottom end of the sewage box 10.

[0028] A second flange 6 is provided at both ends of the flowmeter body 1, and a display part 7 is provided at the top of the flowmeter body 1. A first flange 4 is provided at both ends of the filter tube 3. Fastening bolts 2 are embedded in a ring array in the first flange 4. Multiple fastening bolts 2 are slidably inserted into the second flange 6, and the fastening bolts 2 pass through one end of the second flange 6 and are threaded with nuts 5. The filter screen 16 in the filter tube 3 filters impurities in the pipeline, and the one-way valve 8 in the filter tube 3 prevents the backflow of impurities. At the same time, a spoiler 14 is embedded in the filter tube 3. The water flow is affected by the spoiler 14 to form a vortex on the side wall of the filter screen 16, so that the water flow rushes to the filter screen 16 from different angles, thereby greatly reducing the adsorption of impurities on the side wall of the filter screen 16.

[0029] like Figure 2 and Figure 3 As shown, the inner wall of the flow meter body 1 is provided with a drain groove 15 connected to the drain box, the spoiler 14 is a hemispherical structure, and a through hole is provided at the center of the spoiler 14, a sealing gasket 13 is embedded in the bottom end of the drain box 10, and a screw hole 12 is provided on the bottom wall of the drain box 10 that passes through the sealing gasket 13, and a plurality of fastening bolts 2 are installed on the bottom end of the sealing plate 9 in a rectangular array, which pass through the sealing plate 9 and are threadedly inserted into the screw hole 12, and the knob bolt 11 on the sealing plate 9 is threadedly inserted into the screw hole 12 to keep it fixed, and at the same time, the sealing plate 9 is abutted against the sealing gasket 13 to keep the bottom end of the drain box 10 in a sealed state. When discharging sewage, the knob bolt 11 is unscrewed and the sealing plate 9 is disassembled, and the filter tube 3 is backflushed to clean the impurities remaining on the filter screen 16, thereby improving the convenience of sewage discharge of the liquid flow meter.

[0030] The structural diagram of the filter tube 3 of the liquid flow meter with filtering function is as follows Figure 2 As shown, its Figure 2 The enlarged schematic diagram of the structure at A is shown in Figure 3 As shown, the cross-sectional structural diagram of the filter tube 3 is as shown Figure 4 shown.

[0031] Working principle: When using the liquid flow meter with filtering function of the present technical solution, the filter screen 16 in the filter tube 3 filters the impurities in the pipeline, and the one-way valve 8 in the filter tube 3 prevents the backflow of impurities. At the same time, a spoiler 14 is embedded in the filter tube 3. The water flow is affected by the spoiler 14 to form a vortex on the side wall of the filter screen 16, so that the water flow rushes to the filter screen 16 from different angles, thereby greatly reducing the adsorption of impurities on the side wall of the filter screen 16. At the same time, heavy impurities fall into the sewage box 10 along the sewage trough 15, and the water flows to the filter screen 16 from different angles. The knob bolt 11 on the sealing plate 9 is threadedly inserted into the screw hole 12 to keep it fixed. At the same time, the sealing plate 9 abuts against the sealing gasket 13 to keep the bottom end of the sewage box 10 in a sealed state. When discharging sewage, the knob bolt 11 is unscrewed, the sealing plate 9 is disassembled, and the filter tube 3 is backflushed to clean the impurities remaining on the filter screen 16, thereby improving the convenience of sewage discharge of the liquid flow meter.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid flow meter with a filtering function, comprising a flow meter body (1) and a filter tube (3) fixed on the flow meter body (1), characterized in that: A filter screen (16) is embedded and fixed at one end of the filter tube (3), a one-way valve (8) is installed at the other end of the filter tube (3), and a spoiler (14) is fixed at the center position of the inner wall of the filter tube (3), wherein a sewage box (10) located between the spoiler (14) and the filter screen (16) is fixed at the bottom end of the outer wall of the filter tube (3), and a sealing plate (9) is embedded and fixed at the bottom end of the sewage box (10).

2. The liquid flow meter with filtering function according to claim 1, characterized in that: Both ends of the flow meter body (1) are provided with a second flange (6), and the top end of the flow meter body (1) is provided with a display part (7).

3. The liquid flow meter with filtering function according to claim 2, characterized in that: Both ends of the filter tube (3) are provided with a first flange (4), and the first flange (4) has fastening bolts (2) embedded in an annular array.

4. The liquid flow meter with filtering function according to claim 3, characterized in that: The plurality of fastening bolts (2) are all slidably inserted into the second flange (6), and one end of the fastening bolt (2) passes through the second flange (6) and is threadedly sleeved with a nut (5).

5. The liquid flow meter with filtering function according to claim 1, characterized in that: The inner wall of the flow meter body (1) is provided with a drainage groove (15) connected to the displacement box. The spoiler (14) is a hemispherical structure, and a through hole is provided at the center of the spoiler (14).

6. The liquid flow meter with filtering function according to claim 1, characterized in that: A sealing gasket (13) is embedded in the bottom end of the sewage box (10), and a screw hole (12) penetrating the sealing gasket (13) is opened on the bottom wall of the sewage box (10).

7. The liquid flow meter with filtering function according to claim 6, characterized in that: A plurality of fastening bolts (2) are installed in a rectangular array at the bottom end of the sealing plate (9), and the fastening bolts (2) pass through the sealing plate (9) and are threadedly inserted into the screw holes (12).

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