Filtering assembly of flowmeter

Abstract

The filtering assembly comprises a metering instrument and a filtering piece, the metering instrument comprises a through cylinder, the flowmeter is communicated and fixed to the outer circumferential face of the through cylinder, the filtering piece comprises a filtering cylinder, one end of the filtering cylinder is provided with an opening, and a fixing ring is fixed to the opening end of the filtering cylinder. A liquid inlet pipe is vertically and fixedly communicated with one end of the upper part of the outer circumferential surface of the filter cylinder, a filter screen cylinder is horizontally inserted into the filter cylinder, an opening is formed in one end, close to the filter cylinder, of the filter screen cylinder, the filter screen cylinder is horizontally fixed on the inner wall of the filter cylinder, a rotating plate is rotatably connected to the inner end surface of the filter cylinder, and a scraping plate is vertically fixed on the rotating plate; the problems that more impurities are adhered to filter screen holes when the filter screen is used for filtering for a long time, and the flow rate of water passing through the filter screen is reduced after the filter screen is used for a long time, so that the flow velocity and the detection precision of the water flow are influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, and more specifically to a filter component of a flow meter. Background Art

[0002] The water resources used in industrial production are usually surface water without special treatment. The water contains some impurities and tiny organisms. When these impurities pass through the liquid flow meter, they not only affect the metering results of the flow meter, resulting in poor reliability of the metering structure, but also damage the meter itself, causing damage to the metering structure and the meter.

[0003] The existing announcement number is CN203547709U, and the name is a filtering type collecting flow meter, which includes an upper instrument shell, a lower instrument shell, and a plurality of ribs arranged between the upper instrument shell and the lower instrument shell. The lower parts of the plurality of ribs are fixed to the upper end of the lower instrument shell through a fixing ring. The lower parts of the plurality of ribs are also fixed with a filter screen for preventing impurities such as rock chips and sand from contacting the turbine, thereby avoiding impurities from entering the turbine and damaging and blocking the turbine flowmeter. The filter screen is made of stainless steel.

[0004] However, the above-mentioned flow meter filtering device uses a filter to filter impurities flowing into the water. However, when the above-mentioned filter is filtered for a long time, more impurities will adhere to the filter holes. When used for a long time, the water flow through the filter will be reduced, thereby affecting the flow rate and the accuracy of detecting the water flow. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a filter assembly for a flow meter, which overcomes the above-mentioned technical defects.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A filter assembly of a flow meter includes a meter and a filter element, the meter includes a through cylinder, the flow meter is connected and fixed on the outer circumferential surface of the through cylinder, the filter element includes a filter cylinder, one end of the filter cylinder is open, and a fixing ring is fixed to the open end of the filter cylinder, an upper end of the outer circumferential surface of the filter cylinder is vertically connected and fixed with a liquid inlet pipe, and a filter cylinder is horizontally inserted into the interior of the filter cylinder, the filter cylinder is arranged close to the opening of one end of the filter cylinder, and the filter cylinder is horizontally fixed on the inner wall of the filter cylinder, a rotating plate is rotatably connected to the inner end surface of the filter cylinder, and a scraper is vertically fixed on the rotating plate.

[0010] Furthermore, a sewage pipe is vertically connected and fixed to the bottom of the outer circumferential surface of the filter cartridge, and a valve is connected and fixed to the sewage pipe.

[0011] Furthermore, a motor is horizontally fixed on the outer end surface of the filter cartridge, and an output end of the motor is fixed on the end surface of the rotating plate.

[0012] Furthermore, a hole ring plate is fixedly connected to the top of the liquid inlet pipe, and an insert tube is vertically inserted in the liquid inlet pipe.

[0013] Furthermore, the top end of the insert is connected and fixed with a fixed orifice plate, and the fixed orifice plate is fixed on the orifice ring plate.

[0014] Furthermore, a net tube is vertically passed through and fixed on the bottom end of the insertion tube.

[0015] Furthermore, flange rings are fixed through both ends of the through tube, fixing screws are installed through the horizontal threads on the fixing rings, and the fixing screws are fixedly connected to the flange rings at the ends of the through tube.

[0016] 3. Beneficial effects

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

[0018] During use, the open end of the filter cartridge is connected and fixed to one end of the through-tube of the meter, and the water is guided into the filter cartridge through the liquid inlet pipe. The water is filtered through the filter cartridge to remove impurities in the water, and then the filtered water enters the through-tube. The water flow rate is measured by a flow meter, and the motor is started to drive the rotating plate to rotate, which drives the scraper to scrape off the impurities adhered to the outer surface of the filter cartridge, thereby ensuring the filtering effect of the filter cartridge and avoiding the problem that more impurities will adhere to the filter holes when the filter cartridge is filtered for a long time, resulting in a decrease in the water flow through the filter when used for a long time, thereby ensuring the flow rate and the accuracy of detecting the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model as a whole in a disassembled state;

[0021] Figure 3 It is a schematic diagram of the structure of the meter in the disassembled state in the implementation of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the filter element in the decomposed state in the implementation of the utility model;

[0023] Figure 5 It is a schematic structural diagram of the filter cartridge in a disassembled state in the implementation of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Meter; 11. Through tube; 12. Flange ring; 13. Flow meter; 2. Filter element; 21. Filter cartridge; 211. Liquid inlet pipe; 212. Drain pipe; 213. Valve; 214. Orifice plate; 215. Insert cylinder; 216. Fixed orifice plate; 217. Net cylinder; 22. Fixed ring; 221. Fixed screw; 23. Filter cylinder; 24. Rotating plate; 241. Scraper; 25. Motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 A filter assembly of a flow meter includes a meter 1 and a filter element 2. The meter 1 includes a through cylinder 11, and a flow meter 13 is connected and fixed on the outer circumferential surface of the through cylinder 11. The filter element 2 includes a filter cylinder 21, one end of the filter cylinder 21 is open, and a fixing ring 22 is fixed to the open end of the filter cylinder 21. An upper end of the outer circumferential surface of the filter cylinder 21 is vertically connected and fixed with a liquid inlet pipe 211, and a filter cylinder 23 is horizontally inserted into the interior of the filter cylinder 21. The filter cylinder 23 is arranged near the opening of one end of the filter cylinder 21, and the filter cylinder 23 is horizontally fixed on the inner wall of the filter cylinder 21. A rotating plate 24 is rotatably connected to the inner end surface of the filter cylinder 21, and a scraper 241 is vertically fixed on the rotating plate 24. A motor 25 is horizontally fixed on the outer end surface of the filter cylinder 21 , and the output end of the motor 25 is fixed on the end surface of the rotating plate 24. During use, the open end of the filter cartridge 21 is connected and fixed to one end of the through-tube 11 of the meter 1, and the water flow is guided into the filter cartridge 21 through the liquid inlet pipe 211. The water is filtered through the filter cartridge 23 to remove impurities in the water, and then the filtered water enters the through-tube 11. The water flow rate is measured by the flow meter 13, and the motor 25 is started to drive the rotating plate 24 to rotate, and the scraper 241 is driven to scrape off the impurities adhered to the outer surface of the filter cylinder 23, thereby ensuring the filtering effect of the filter cylinder 23, avoiding the problem that more impurities will adhere to the filter mesh holes when the filter cylinder 23 is filtered for a long time, resulting in a decrease in the water flow through the filter when used for a long time, thereby ensuring the flow rate and the accuracy of detecting the water flow.

[0028] See also Figure 4A drain pipe 212 is vertically connected and fixed to the bottom of the outer circumferential surface of the filter cartridge 21 , and a valve 213 is connected and fixed to the drain pipe 212 . In later use, the valve 213 on the drain pipe 212 is opened to discharge the scraped impurities from the filter cartridge 21 .

[0029] See also Figure 4 and Figure 5 The top end of the liquid inlet pipe 211 is connected to and fixed with a hole ring plate 214, and an insert tube 215 is vertically inserted in the liquid inlet pipe 211. The top end of the insert tube 215 is connected to and fixed with a fixed hole plate 216, and the fixed hole plate 216 is fixed on the hole ring plate 214. The bottom end of the insert tube 215 is vertically penetrated and fixed with a net tube 217. The insert tube 215 is inserted into the liquid inlet pipe 211, and the added water enters the insert tube 215, and is filtered through the net tube 217 to remove impurities in the added water.

[0030] See also Figure 3 and Figure 4 Both ends of the through tube 11 are penetrated and fixed with flange rings 12, and the fixing screws 221 are installed through the horizontal threads on the fixing rings 22, and the fixing screws 221 are fixedly connected to the flange rings 12 at the ends of the through tube 11. During use, the through tube 11 and the filter tube 21 are assembled and connected by the fixing screws 221 to filter and remove impurities in the water.

[0031] During use, the open end of the filter cartridge 21 is connected and fixed to one end of the through cylinder 11 of the meter 1, and water is guided into the filter cartridge 21 through the liquid inlet pipe 211. The water is filtered through the filter cartridge 23 to remove impurities in the water, and then the filtered water enters the through cylinder 11. The flow rate of the water is measured by the flow meter 13, and the motor 25 is started to drive the rotating plate 24 to rotate, and the scraper 241 is driven to scrape off the impurities adhered to the outer surface of the filter cylinder 23.

[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A filter assembly for a flow meter, characterized in that: The invention comprises a meter (1) and a filter element (2), wherein the meter (1) comprises a through-tube (11), a flow meter (13) being connected and fixed on the outer circumferential surface of the through-tube (11), and the filter element (2) comprises a filter cartridge (21), one end of the filter cartridge (21) being arranged with an opening, and a fixing ring (22) being fixed to the open end of the filter cartridge (21), a liquid inlet pipe (211) being vertically connected and fixed to the upper end of the outer circumferential surface of the filter cartridge (21), and a filter screen cartridge (23) being horizontally inserted into the interior of the filter cartridge (21), the filter screen cartridge (23) being arranged close to the opening of one end of the filter cartridge (21), and the filter screen cartridge (23) being horizontally fixed on the inner wall of the filter cartridge (21), and a rotating plate (24) being rotatably connected to the inner end surface of the filter cartridge (21), and a scraper (241) being vertically fixed on the rotating plate (24).

2. A filter assembly for a flow meter according to claim 1, characterized in that: A sewage discharge pipe (212) is vertically connected and fixed to the bottom of the outer circumferential surface of the filter cartridge (21), and a valve (213) is connected and fixed to the sewage discharge pipe (212).

3. A filter assembly for a flow meter according to claim 1, characterized in that: A motor (25) is horizontally fixed on the outer end surface of the filter cartridge (21), and the output end of the motor (25) is fixed on the end surface of the rotating plate (24).

4. A filter assembly for a flow meter according to claim 1, characterized in that: The top end of the liquid inlet pipe (211) is connected and fixed with a hole ring plate (214), and an insert tube (215) is vertically inserted into the liquid inlet pipe (211).

5. A filter assembly for a flow meter according to claim 4, characterized in that: The top end of the insert cylinder (215) is connected and fixed with a fixed orifice plate (216), and the fixed orifice plate (216) is fixed on the orifice ring plate (214).

6. A filter assembly for a flow meter according to claim 5, characterized in that: A net tube (217) is vertically passed through and fixed to the bottom end of the insert tube (215).

7. The filter assembly of a flow meter according to claim 1, characterized in that: Both ends of the through tube (11) are penetrated and fixed with flange rings (12); a fixing screw (221) is installed through a horizontal thread on the fixing ring (22); and the fixing screw (221) is fixedly connected to the flange ring (12) at the end of the through tube (11).

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