Turbine flowmeter convenient to clean

Abstract

The turbine flowmeter convenient to clean comprises a flowmeter body, a left conveying pipeline and a right discharging pipeline are arranged on the left side and the right side of the flowmeter body respectively, a filtering assembly is installed on the inner wall, close to an opening, of the left conveying pipeline in a clamped mode, and a first support and a second support are fixedly installed on the inner wall of the left conveying pipeline. A driving impeller and a mounting shaft are rotationally mounted in the middles of the first bracket and the second bracket respectively; and a scraper is fixedly mounted on the outer wall of the mounting shaft. By arranging the driving impeller, the driving impeller can be driven by hydraulic power to rotate, and then the mounting shaft is driven to rotate, so that impurities on the inner wall of the left conveying pipeline can be cleaned, the cleaning mode is convenient and fast, manual participation is not needed, meanwhile, a driving part does not need to be additionally arranged, and certain use cost is saved; by arranging the filter plate, relatively large impurities can be isolated, and the impurities can be prevented from being attached to the outer wall of the sensor, so that the accuracy of detection data of the sensor is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of turbine flowmeters, and more specifically, particularly relates to a turbine flowmeter which is easy to clean. Background Art

[0002] The turbine flowmeter is developed and produced based on the Karman vortex street principle. It is mainly used for flow measurement of industrial pipeline media fluids, such as gas, liquid, steam and other media. It is characterized by small pressure loss, large measuring range, high accuracy, and is almost unaffected by fluid density, pressure, temperature, viscosity and other parameters when measuring working volume flow. It has no movable mechanical parts, so it has high reliability, low maintenance, and the instrument parameters can be stable for a long time.

[0003] The existing Chinese patent application number: CN201921789990.6 discloses a turbine flowmeter that is easy to clean, including: a guide tube, a flange, a blocking structure, a fixed structure and a flow meter structure, wherein flanges are fixed at both ends of the guide tube, the fixed structure is arranged in the middle of the top side of the circumferential surface of the guide tube, the flow meter structure is installed inside the fixed structure, a through hole is opened on the top side of the circumferential surface of the guide tube, and the limit cylinder is fixed at the port of the through hole by welding. By setting the flow meter structure as a movable structure, after the flow meter structure is disassembled, the movable tube inside the storage box can assist the sealing guard plate to adhere to the inner wall of the guide tube with the cooperation of the extrusion spring, so as to ensure the normal use of the flow meter pipeline. After cleaning the vortex generator and the sensor, the flow meter structure is fixed in the fixed structure with cooperation, the operation engineering volume is small, the cleaning operation is simpler, and the vortex generator and the sensor can be ensured to operate normally, and the flow meter can be ensured to operate normally. Although the above utility model realizes the cleaning of the vortex generator and the sensor, it does not clean the impurities attached to the inner wall of the turbine flowmeter. The long-term accumulation of impurities will reduce the accuracy of the flowmeter.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a turbine flowmeter that is easy to clean is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a turbine flowmeter that is easy to clean, which is achieved by the following specific technical means:

[0006] A turbine flowmeter that is easy to clean includes a flowmeter body, wherein a left delivery pipe and a right discharge pipe are respectively arranged on the left and right sides of the flowmeter body, a filter assembly is clamped and installed on the inner wall of the left delivery pipe near the opening, a first bracket and a second bracket are fixedly installed on the inner wall of the left delivery pipe, a driving impeller and a mounting shaft are rotatably installed in the middle of the first bracket and the second bracket, a scraper is fixedly installed on the outer wall of the mounting shaft, and the mounting shaft is fixedly connected to the other end of the driving impeller and is located on the same axis.

[0007] Furthermore, the filter assembly is a filter plate, and a plurality of through holes are provided on one side of the filter plate, and the diameters of the plurality of through holes are arranged to increase from top to bottom.

[0008] Furthermore, the mounting shaft and one end of the driving impeller are respectively fixedly mounted with a first bearing and a second bearing, and the first bearing and the second bearing are respectively fixedly mounted on the middle of the second bracket and the first bracket.

[0009] Furthermore, the second bracket and the first bracket are both triangular brackets.

[0010] Furthermore, flanges are welded to one end of the left delivery pipe and the right discharge pipe.

[0011] Furthermore, the scraper blade is spiral-shaped and is welded to the outer side of the mounting shaft through a fixing rod, and a rubber sheet is provided on the edge of the scraper blade, and the rubber sheet is disposed against the inner wall of the left conveying pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model arranges a driving impeller, which can utilize hydraulic power to drive the impeller to rotate, and then drive the installation shaft to rotate, so that impurities on the inner wall of the left conveying pipe can be cleaned. The cleaning method is relatively convenient, and no manual participation is required. At the same time, no driving components need to be installed, which saves a certain amount of use cost. By arranging a filter plate, relatively large impurities can be isolated, and impurities can be prevented from adhering to the outer wall of the sensor, thereby affecting the accuracy of the sensor detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the left conveying pipeline of the utility model.

[0016] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0017] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0018] 1. Flow meter body; 2. Filter plate; 3. Second bearing; 4. First bracket; 5. Scraper; 6. Second bracket; 7. First bearing; 8. Mounting shaft; 9. Driving impeller; 11. Left delivery pipe; 12. Right discharge pipe. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0022] As attached Figure 1 To Attachment Figure 3 As shown:

[0023] The utility model provides a turbine flowmeter which is easy to clean, comprising a flowmeter body 1, wherein a left delivery pipe 11 and a right discharge pipe 12 are respectively arranged on the left and right sides of the flowmeter body 1, a filter assembly is clamped and installed on the inner wall of the left delivery pipe 11 near the opening, a first bracket 4 and a second bracket 6 are fixedly installed on the inner wall of the left delivery pipe 11, a driving impeller 9 and a mounting shaft 8 are rotatably installed in the middle parts of the first bracket 4 and the second bracket 6, a scraper 5 is fixedly installed on the outer wall of the mounting shaft 8, and the mounting shaft 8 is fixedly connected to the other end of the driving impeller 9 and is located on the same axis.

[0024] The filter assembly is a filter plate 2, and a plurality of through holes are provided on one side of the filter plate 2.

[0025] Among them, one end of the mounting shaft 8 and the driving impeller 9 are respectively fixedly mounted with a first bearing 7 and a second bearing 3, and the first bearing 7 and the second bearing 3 are respectively fixedly mounted in the middle of the second bracket 6 and the first bracket 4. By arranging the first bearing 7 and the second bearing 3, the rotation resistance of the mounting shaft 8 and the driving impeller 9 can be reduced.

[0026] Wherein, the second bracket 6 and the first bracket 4 are both triangular brackets.

[0027] Wherein, flanges are welded to one end of the left delivery pipe 11 and the right discharge pipe 12 .

[0028] The scraper 5 is spiral and welded to the outside of the mounting shaft 8 through a fixing rod, and a rubber sheet is provided at the edge of the scraper 5, and the rubber sheet is arranged against the inner wall of the left delivery pipe 11. This design can scrape impurities from the inner wall of the left delivery pipe 11.

[0029] The working principle of this embodiment is as follows: when in use, the flow meter body 1 is connected to the water pipe through the flange. When water flows through the left delivery pipe 11, the filter plate 2 will block the larger impurities in the water flow. At the same time, the water flows into the left delivery pipe 11 from the through hole on the filter plate 2. The water flow is used to drive the impeller 9 to rotate, and the driving impeller 9 drives the installation shaft 8 to rotate. The installation shaft 8 drives the scraper 5 to clean the inner wall of the left delivery pipe 11. After long-term use, the user can disassemble the flow meter body 1 and replace the filter plate 2. When water flows through the sensor, the sensor will detect the water flow, and the detected data will be displayed on the connected display screen.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A turbine flowmeter that is easy to clean, comprising a flowmeter body (1), wherein a left delivery pipe (11) and a right discharge pipe (12) are respectively arranged on the left and right sides of the flowmeter body (1), characterized in that: The left delivery pipe (11) is provided with a filter assembly mounted on the inner wall near the opening, and a first bracket (4) and a second bracket (6) are fixedly mounted on the inner wall of the left delivery pipe (11); a driving impeller (9) and a mounting shaft (8) are rotatably mounted in the middle of the first bracket (4) and the second bracket (6), respectively; a scraper (5) is fixedly mounted on the outer wall of the mounting shaft (8); and the mounting shaft (8) is fixedly connected to the other end of the driving impeller (9) and is located on the same axis.

2. The turbine flowmeter that is easy to clean as claimed in claim 1, characterized in that: The filter assembly is a filter plate (2), and a plurality of through holes are provided on one side of the filter plate (2).

3. The turbine flowmeter that is easy to clean as claimed in claim 1, characterized in that: The mounting shaft (8) and one end of the driving impeller (9) are respectively fixedly sleeved with a first bearing (7) and a second bearing (3); the first bearing (7) and the second bearing (3) are respectively fixedly mounted in the middle of the second bracket (6) and the first bracket (4).

4. The turbine flowmeter that is easy to clean as claimed in claim 3, characterized in that: The second bracket (6) and the first bracket (4) are both triangular brackets.

5. The turbine flowmeter that is easy to clean as claimed in claim 1, characterized in that: One end of the left delivery pipe (11) and the right discharge pipe (12) are both welded with flanges.

6. The turbine flowmeter that is easy to clean as claimed in claim 1, characterized in that: The scraper blade (5) is spiral-shaped and is welded to the outer side of the mounting shaft (8) via a fixing rod, and a rubber sheet is provided at the edge of the scraper blade (5), and the rubber sheet is disposed against the inner wall of the left conveying pipe (11).

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