Turbine flowmeter

Abstract

The utility model discloses a turbine flowmeter, include: main part, form the shape with valve body flowmeter installation department is adapted to each other, it can be inserted and fixed in valve body flowmeter installation department, impeller installation department, form at the top of main part, it is used to install impeller subassembly, annular magnet, it is sleeved in the first recess of one end of impeller subassembly and inserts impeller installation department, and it has no contact with impeller installation department, hall element, it is installed in hall element installation department of main part. The utility model makes the magnet into annular magnet and is sleeved on the impeller, and the annular magnet protection structure is wrapped magnetic ring through the impeller and the main body and forms, prevents annular magnet and is affected by the foreign matter in fluid. The utility model adopts the mode of titanium plating to protect stainless steel impeller shaft, improves abrasion resistance, and the cost is lower than the direct replacement impeller shaft material. Adopt the way of inserting pin or interference quick connection and install flowmeter on main valve body, and it is convenient to disassemble.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a turbine flow meter. Background Technology

[0002] A turbine flow meter is an instrument used to measure the flow rate of fluids (liquid or gas), and is widely used in petroleum, chemical, natural gas, pharmaceutical, food, and environmental protection industries. It is based on the principles of fluid dynamics, calculating the flow rate by measuring the rotational speed of the fluid as it flows through the turbine blades. The working principle of a turbine flow meter is based on energy conversion in fluid dynamics. When fluid passes through the turbine flow meter, the fluid's kinetic energy causes the turbine blades to rotate. The turbine's rotational speed is directly proportional to the fluid's velocity; by measuring the turbine's rotational speed, the fluid's flow rate can be calculated.

[0003] The following defects in existing turbine flow meters need to be addressed;

[0004] 1. Existing magnetic turbine flow meters typically have their magnets installed around the impeller. This placement makes the magnets prone to attracting foreign matter, which can lead to unstable impeller rotation. Although installing magnets with the smallest possible size can prevent this, the results are not ideal.

[0005] 2. Existing magnetic turbine flow meters generally use stainless steel for their impeller shafts to improve durability. While stainless steel offers good wear resistance, it still experiences significant wear over time, affecting accuracy. Using more expensive titanium alloys or Hastelloy alloys for the impeller shaft would substantially increase production costs.

[0006] 3. Existing flow meters are directly installed inside the pipeline and can only be disassembled after the bypass valve is removed, making disassembly and maintenance difficult. Utility Model Content

[0007] The utility model description section introduces a series of simplified concepts, all of which are simplifications of existing technologies in the field, and will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0008] The technical problem to be solved by this utility model is to provide a turbine flow meter that can prevent the magnet of the turbine flow meter from being affected by foreign objects in the fluid, has low production cost and is easy to install.

[0009] To solve the above-mentioned technical problems, the present invention provides a turbine flow meter, comprising:

[0010] The main body 1 is formed in a shape that is compatible with the valve body flow meter mounting part 2, and can be inserted and fixed to the valve body flow meter mounting part 2;

[0011] Impeller mounting part 3 is formed on the top of the main body 1 and is used to mount impeller assembly 4;

[0012] An annular magnet 5 is fitted into a first recess at one end of the impeller assembly 4 that is inserted into the impeller mounting part 3, and it does not contact the impeller mounting part 3.

[0013] Hall element 6 is installed in Hall element mounting part 7 of main body 1.

[0014] Preferably, the turbine flow meter is further improved in that the main body 1 is formed as a variable diameter column with a radius that gradually increases from the top to the bottom.

[0015] Preferably, the turbine flow meter is further improved such that the outer wall of the main body 1 has a plurality of protrusions, which are interference-fitted into the valve body flow meter mounting part 2.

[0016] Preferably, in a further improvement of the turbine flow meter, a second recess is formed on the outer wall of the main body 1, and the second recess cooperates with the pin to fix the main body 1 in the valve body flow meter mounting part 2.

[0017] Preferably, in a further improvement to the turbine flow meter, the impeller assembly 4 includes:

[0018] Corundum 4.3, which rests between the impeller shaft 4.6 and the flow meter blade 4.1;

[0019] The impeller shaft 4.6 has one end fixed in the impeller mounting part 3 and the other end abutting against the corundum 4.3;

[0020] Clamp 4.4, fixed to bushing 4.2, is used to prevent fan blade 4.1 and impeller shaft 4.6 from detaching.

[0021] Preferably, in a further improvement of the turbine flow meter, the Hall element mounting portion 7 is formed as a mounting groove or mounting hole.

[0022] Preferably, in a further improvement of the turbine flow meter, when the Hall element mounting portion 7 is formed as a mounting groove, it has a mounting groove cover plate;

[0023] The Hall element mounting section 7 is configured for mounting and has a mounting hole cover plate.

[0024] Preferably, in a further improvement of the turbine flow meter, the top wall of the annular magnet 5 is flush with the outer wall surface of the portion of the impeller assembly 4 inserted into the impeller mounting part 3.

[0025] Preferably, the turbine flow meter is further improved by forming a titanium-plated layer on the impeller shaft 4.6.

[0026] This utility model can achieve at least the following technical effects through structural design;

[0027] 1. This utility model makes the magnet into a ring magnet and puts it on the impeller. The impeller and the main body together form a ring magnet protective structure to wrap the magnetic ring and prevent the ring magnet from being affected by foreign objects in the fluid.

[0028] 2. This utility model uses titanium plating to protect the stainless steel impeller shaft, which improves wear resistance and is cheaper than directly replacing the impeller shaft material.

[0029] 3. The flow meter is installed on the main valve body using a pin or interference quick-connect fitting, making disassembly and reassembly convenient. Attached Figure Description

[0030] The accompanying drawings are intended to illustrate the general characteristics of the methods, structures, and / or materials used in specific exemplary embodiments of the present invention, supplementing the description in the specification. However, these drawings are schematic diagrams not drawn to scale and may not accurately reflect the precise structural or performance characteristics of any of the given embodiments. The drawings should not be construed as limiting or restricting the range of numerical values ​​or properties covered by the exemplary embodiments of the present invention. The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0031] Figure 1 This is a cross-sectional view of the installation and positioning of this utility model.

[0032] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0033] Figure 3 This is an exploded view of the impeller assembly of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] Main Body 1

[0036] Valve body flow meter installation part 2

[0037] Impeller mounting section 3

[0038] Impeller assembly 4;

[0039] Fan blades 4.1

[0040] Bushing 4.2

[0041] Corundum 4.3

[0042] Clamp 4.4

[0043] Impeller shaft 4.6

[0044] Ring magnet 5

[0045] Hall element 6

[0046] Hall element mounting section 7

[0047] Mounting hole cover plate 8. Detailed Implementation

[0048] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can fully understand other advantages and technical effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through different specific embodiments, and various details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. The following exemplary embodiments of this utility model can be implemented in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of this utility model thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art. It should be understood that when an element is referred to as "connected" or "combined" to another element, the element can be directly connected or combined to the other element, or there may be intermediate elements. The difference is that when an element is referred to as "directly connected" or "directly combined" to another element, there are no intermediate elements. Throughout the drawings, the same reference numerals always denote the same elements. As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0049] First embodiment;

[0050] refer to Figure 1 Combination Figure 2 As shown, this utility model provides a turbine flow meter, comprising:

[0051] The main body 1 is formed in a shape that is compatible with the valve body flow meter mounting part 2, and can be inserted and fixed to the valve body flow meter mounting part 2;

[0052] Impeller mounting part 3 is formed on the top of the main body 1 and is used to mount impeller assembly 4;

[0053] An annular magnet 5 is fitted into a first recess at one end of the impeller assembly 4 that is inserted into the impeller mounting part 3, and it does not contact the impeller mounting part 3.

[0054] Hall element 6 is installed in Hall element mounting part 7 of main body 1.

[0055] Optionally, the main body 1 is formed as a variable-diameter column with a radius that gradually increases from the top to the bottom, and the outer wall of the main body 1 has multiple protrusions, which are interference-fitted into the valve body flow meter mounting part 2.

[0056] Optionally, a second recess is formed on the outer wall of the main body 1, and the second recess cooperates with the pin to fix the main body 1 in the valve body flow meter mounting part 2.

[0057] Preferably, the top wall of the annular magnet 5 is flush with the outer wall of the portion of the impeller assembly 4 inserted into the impeller mounting part 3, so that the annular magnet 5 is surrounded and blocked by the impeller assembly 4 and the impeller mounting part 3 to prevent foreign objects in the fluid from contacting the annular magnet 5.

[0058] Preferably, the Hall element mounting portion 7 is formed as a mounting groove or mounting hole;

[0059] When the Hall element mounting section 7 is formed as a mounting groove, it has a mounting groove cover plate;

[0060] The Hall element mounting section 7 is configured for mounting and has a mounting hole cover plate 8.

[0061] Preferably, a titanium-plated layer is formed on the impeller shaft 4.6.

[0062] Second embodiment;

[0063] refer to Figure 3 As shown, the present invention provides an impeller assembly 4 that can be used in the first embodiment described above, comprising:

[0064] Corundum 4.3, which rests between the impeller shaft 4.6 and the flow meter blade 4.1;

[0065] The impeller shaft 4.6 has one end fixed in the impeller mounting part 3 and the other end abutting against the corundum 4.3;

[0066] Bushing 4.2 is fitted onto the corundum 4.3 and impeller shaft 4.6;

[0067] Clamp 4.4, fixed to bushing 4.2, is used to prevent fan blade 4.1 and impeller shaft 4.6 from detaching.

[0068] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will also be understood that, unless explicitly defined herein, terms such as those defined in a general dictionary shall be interpreted as having the meaning consistent with their meaning in the relevant field context, and not as having an idealized or overly formal meaning.

[0069] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the present invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A turbine flow meter, characterized in that, include: The main body (1) is formed in a shape that is compatible with the valve body flow meter mounting part (2) and can be inserted and fixed to the valve body flow meter mounting part (2). Impeller mounting part (3) is formed on the top of the main body (1) and is used to mount the impeller assembly (4). The annular magnet (5) is fitted into the first recess at one end of the impeller assembly (4) inserted into the impeller mounting part (3), and has no contact with the impeller mounting part (3); Hall element (6) is installed in Hall element mounting part (7) of main body (1).

2. The turbine flow meter as described in claim 1, characterized in that: The main body (1) is formed as a variable-diameter column with a radius that gradually increases from the top to the bottom.

3. The turbine flow meter as described in claim 1, characterized in that: The outer wall of the main body (1) has multiple protrusions, which are interference-fitted into the valve body flow meter mounting part (2).

4. The turbine flow meter as described in claim 1, characterized in that: The outer side wall of the main body (1) has a second recess, which cooperates with the pin to fix the main body (1) in the valve body flow meter mounting part (2).

5. The turbine flow meter as described in claim 1, characterized in that, Impeller assembly (4) includes: Corundum (4.3) rests between the impeller shaft (4.6) and the flow meter blade (4.1); The impeller shaft (4.6) has one end fixed in the impeller mounting part (3) and the other end abutting against the corundum (4.3). Bushing (4.2) is fitted onto the corundum (4.3) and impeller shaft (4.6); The clamp (4.4) is fixed on the bushing (4.2).

6. The turbine flow meter as described in claim 1, characterized in that: The Hall element mounting section (7) is formed as a mounting groove or mounting hole.

7. The turbine flow meter as described in claim 1, characterized in that: When the Hall element mounting part (7) is formed as a mounting groove, it has a mounting groove cover plate; The Hall element mounting section (7) is configured for mounting and has a mounting hole cover.

8. The turbine flow meter as described in claim 1, characterized in that: The top wall of the annular magnet (5) is flush with the outer wall of the impeller assembly (4) inserted into the impeller mounting part (3).

9. The turbine flow meter as described in claim 5, characterized in that: A titanium-plated layer is formed on the impeller shaft (4.6).

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