Protective precession vortex gas flowmeter

Abstract

The utility model discloses a protection type precession vortex gas flow meter which comprises a precession vortex gas flow meter body, and a shell is arranged on the outer wall of the precession vortex gas flow meter body. According to the device, the filter screen is directly arranged in the flow meter, gas entering the flow meter can be secondarily filtered, foreign matter possibly damaging blades can be accurately intercepted, and even if the front filter device is insufficient in filtration or new foreign matter is mixed in the flow meter subsequently, the flow meter can be used for filtering the gas again. According to the precession vortex gas flow meter, gas entering the flow meter can be ensured to be relatively pure, so that blades in the flow meter are effectively protected, the stability of the measurement precision of the flow meter is maintained, the reliability of the precession vortex gas flow meter in a complex application environment is greatly improved, and the service life of the precession vortex gas flow meter in a complex application environment is greatly prolonged; the other filter screen can be disassembled and maintained under the condition that one filter screen works, shutdown is not needed, the overall working efficiency is greatly improved, and the filter screen is convenient to use, high in practicability and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a protective precession vortex gas flow meter. Background Art

[0002] As a commonly used gas flow measurement instrument, vortex gas flowmeters are widely used in industrial production, energy transmission, gas supply, and many other fields. They are based on the principle that gas swirls in a pipeline and accurately measure gas flow by detecting relevant parameters such as vortex frequency.

[0003] However, in actual application environments, the gas medium is often not in an ideally pure state. Numerous factors contribute to the inclusion of various foreign matter in the gas, and these foreign matter originate from a wide range of sources. For example, in industrial production environments, the piping system may rust and flake due to long-term use, and dust particles from the production process may also be mixed into the gas. During the gas transportation process, despite certain pre-treatment, some tiny impurities may still be present. Furthermore, dust from the external environment may also enter the pipeline during gas transportation. When these foreign matter-laden gases directly enter the vortex gas flowmeter, they can cause numerous problems for its normal operation. The most prominent of these is damage to the vanes within the flowmeter. The vanes within the flowmeter are key components for achieving gas vortex formation and detecting related parameters. Their accuracy and integrity are crucial to the accuracy of flow measurement. Once foreign matter collides or rubs against the blades, it is likely to cause wear, deformation or even damage to the blade surface, thereby affecting the normal formation of the vortex and the detection of related parameters, and ultimately causing a significant drop in the measurement accuracy of the flow meter, seriously affecting its normal use and causing a lot of trouble to people. Therefore, based on the above shortcomings, a protective vortex precession gas flowmeter is now introduced to prevent foreign matter from entering the flow meter. Utility Model Content

[0004] The purpose of the present utility model is to provide a protective swirl precession vortex gas flowmeter to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective swirl gas flowmeter, comprising a swirl gas flowmeter, a shell is provided on the outer wall of the swirl gas flowmeter, the swirl gas flowmeter is communicated with the inner cavity of the shell, and inspection doors are provided at the upper and lower ends of the right side of the shell, the top of the shell is rotatably connected to one end of a screw through a bearing, and the other end of the screw extends into the inner cavity of the shell, the top of the screw is provided with a handle, the outer wall of the screw is threadedly connected to a base, the bottom end of the base is provided with a first pad, and the bottom end of the first pad is provided with a first rubber Rubber plug, the bottom end of the first rubber plug is installed with a first bracket, the bottom end of the first bracket is installed with a second rubber plug, the bottom end of the second rubber plug is installed with a second pad, the bottom end of the second pad is installed with a third rubber plug, the bottom end of the third rubber plug is installed with a second bracket, and the bottom end of the second bracket is installed with a fourth rubber plug. The upper and lower ends of the inner cavity of the first bracket and the second bracket are symmetrically provided with mounting grooves, and the inner wall of the mounting groove is provided with a positioning hole. The inner cavity of the mounting groove is plugged with a filter screen, and the upper and lower ends of the filter screen are installed with one end of a rubber card ball, and the other end of the rubber card ball is stuck into the inner cavity of the positioning hole.

[0006] Preferably, the inspection door and the filter screen match each other and are positioned correspondingly.

[0007] Preferably, the distances between the first rubber stopper and the second rubber stopper, and between the third rubber stopper and the fourth rubber stopper are the same and are larger than the diameter of the precession vortex gas flowmeter.

[0008] Preferably, the housing is arranged at the air inlet of the swirl gas flowmeter.

[0009] Preferably, anti-slip edges are provided on the outer wall of the handle.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the protective swirl gas flowmeter can drive the base and all the structural parts on the base to move upward or downward through the cooperation between the screw and the handle, and the medium flowing into the swirl gas flowmeter can be filtered through the filter. The filter can be disassembled and maintained through the cooperation between the mounting groove, the positioning hole, the rubber card ball and the inspection door. The device directly sets a filter inside the flowmeter, which can perform secondary filtration on the gas entering the flowmeter and accurately intercept foreign matter that may damage the blades. Even if the pre-filter device is insufficiently filtered or new foreign matter is subsequently mixed in, the gas entering the flowmeter can be ensured to be relatively pure, thereby effectively protecting the blades inside the flowmeter and maintaining the stability of the flowmeter's measurement accuracy. The reliability and service life of the swirl gas flowmeter in complex application environments are greatly improved. In addition, the overall double-station method is adopted, and one filter can be disassembled and maintained while the other filter is working without stopping the machine, which greatly improves the overall work efficiency, is easy to use, and has strong practicality, meeting the use needs in the existing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the utility model after the positions of the two filters are switched;

[0013] Figure 3 This is an enlarged structural diagram of point A of the present invention.

[0014] In the figure: 1. Precession vortex gas flowmeter, 2. Housing, 3. Inspection door, 4. Screw, 5. Handle, 6. Base, 7. First pad, 8. First rubber plug, 9. First bracket, 10. Second rubber plug, 11. Second pad, 12. Third rubber plug, 13. Second bracket, 14. Fourth rubber plug, 15. Mounting slot, 16. Positioning hole, 17. Filter, 18. Rubber ball. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-3The utility model provides a technical solution: a protective vortex gas flowmeter, comprising a vortex gas flowmeter 1, a shell 2 is provided on the outer wall of the vortex gas flowmeter 1, the vortex gas flowmeter 1 is communicated with the inner cavity of the shell 2, and an inspection door 3 is provided at both upper and lower ends of the right side of the shell 2. The top of the shell 2 is rotatably connected to one end of a screw 4 through a bearing, and the other end of the screw 4 extends into the inner cavity of the shell 2, and a handle 5 is installed at the top of the screw 4. A base 6 is threadedly connected to the outer wall of the screw 4, and a first pad 7 is installed at the bottom end of the base 6. A first rubber stopper 8 is installed at the bottom end of the first pad 7. A first bracket 9 is installed, a second rubber stopper 10 is installed at the bottom end of the first bracket 9, a second pad 11 is installed at the bottom end of the second rubber stopper 10, a third rubber stopper 12 is installed at the bottom end of the second pad 11, a second bracket 13 is installed at the bottom end of the third rubber stopper 12, a fourth rubber stopper 14 is installed at the bottom end of the second bracket 13, and mounting grooves 15 are symmetrically provided at the upper and lower ends of the inner cavity of the first bracket 9 and the second bracket 13, a positioning hole 16 is provided on the inner wall of the mounting groove 15, a filter screen 17 is inserted into the inner cavity of the mounting groove 15, and one end of a rubber card ball 18 is installed at the upper and lower ends of the filter screen 17, and the other end of the rubber card ball 18 is inserted into the inner cavity of the positioning hole 16.

[0017] As a preferred solution, further, the inspection door 3 and the filter screen 17 are matched and positioned correspondingly.

[0018] As a preferred solution, further, the distances between the first rubber stopper 8 and the second rubber stopper 10, and between the third rubber stopper 12 and the fourth rubber stopper 14 are the same and larger than the diameter of the vortex gas flowmeter 1, and the rubber stoppers can ensure the sealing inside the vortex gas flowmeter 1.

[0019] As a preferred solution, further, the housing 2 is arranged at the air inlet of the swirl gas flowmeter 1 .

[0020] As a preferred solution, further, anti-slip edges are provided on the outer wall of the handle 5 , so that the handle 5 can be better gripped and turned by the anti-slip edges.

[0021] The electrical components mentioned in this solution are all existing technologies, and their models are only one of them. Any electrical components that can meet the requirements of this solution can be used.

[0022] Through the personnel in this field, all electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between each electrical component is completed in the order of working. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control. The specific work is as follows.

[0023] When in use, the medium to be measured will flow from right to left into the vortex gas flowmeter 1. During this process, the medium will come into contact with the filter screen 17 and be filtered by the filter screen 17 to prevent foreign matter from entering the vortex gas flowmeter 1. After a period of use, the filter screen 17 of the filter medium will gradually become clogged. Turning the handle 5 will drive the screw 4 to rotate together. The rotating screw 4 will drive the base 6 threadedly connected to its outer wall and all the structural parts on the base 6 to move upward or downward together. That is, when the clogged filter screen 17 moves to the horizontal position of the inspection door 3, another set of filter screens 17 will move into the vortex gas flowmeter 1 to continue filtering. At this time, the inspection door 3 is opened and the filter screen 17 is moved outward with force. The filter screen 17 will drive the rubber card ball 18 to move together. During this process, the rubber card ball 18 will be squeezed and deformed. When the rubber card ball 18 detaches from the inner cavity of the positioning hole 16, the filter screen 17 will also be removed from the first bracket 9, so that it can be disassembled for maintenance.

[0024] The device can perform secondary filtration on the gas entering the flow meter by directly setting a filter inside the flow meter, accurately intercepting foreign matter that may damage the blades. Even if the pre-filter device has insufficient filtration or new foreign matter is subsequently mixed in, the gas entering the flow meter can be ensured to be relatively pure, thereby effectively protecting the blades inside the flow meter and maintaining the stability of the flow meter's measurement accuracy. It greatly improves the reliability and service life of the vortex gas flowmeter in complex application environments. In addition, the overall dual-station method is adopted, which can disassemble and maintain one filter while the other filter is working without shutting down the machine, greatly improving the overall work efficiency. It is easy to use, highly practical, and suitable for promotion.

[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "center position", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are merely for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed or operate in a specific orientation. At the same time, unless otherwise expressly specified or limited, the terms "snapping", "plugging", "welding", "installation", "setting", "interference fit", "screw connection", "pin connection", etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal communication between two components or interaction between two components. Unless otherwise expressly specified, those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective swirl gas flowmeter, comprising a swirl gas flowmeter (1), characterized in that: A shell (2) is provided on the outer wall of the swirl gas flowmeter (1), and the swirl gas flowmeter (1) is arranged in communication with the inner cavity of the shell (2). Inspection doors (3) are provided at both upper and lower ends of the right side of the shell (2). The top end of the shell (2) is rotatably connected to one end of a screw (4) through a bearing, and the other end of the screw (4) extends into the inner cavity of the shell (2). A handle (5) is installed at the top end of the screw (4). A base (6) is threadedly connected to the outer wall of the screw (4). A first pad (7) is installed at the bottom end of the base (6), a first rubber stopper (8) is installed at the bottom end of the first rubber stopper (8), a first bracket (9) is installed at the bottom end of the first bracket (9), and a A second rubber stopper (10), a second pad (11) is installed at the bottom end of the second rubber stopper (10), a third rubber stopper (12) is installed at the bottom end of the second pad (11), a second bracket (13) is installed at the bottom end of the third rubber stopper (12), a fourth rubber stopper (14) is installed at the bottom end of the second bracket (13), mounting grooves (15) are symmetrically provided at the upper and lower ends of the inner cavity of the first bracket (9) and the second bracket (13), a positioning hole (16) is provided on the inner wall of the mounting groove (15), a filter screen (17) is inserted into the inner cavity of the mounting groove (15), one end of a rubber card ball (18) is installed at the upper and lower ends of the filter screen (17), and the other end of the rubber card ball (18) is inserted into the inner cavity of the positioning hole (16).

2. A protective precession vortex gas flowmeter according to claim 1, characterized in that: The inspection door (3) and the filter screen (17) match each other and are positioned correspondingly.

3. The protective precession vortex gas flowmeter according to claim 1, characterized in that: The spacing between the first rubber stopper (8) and the second rubber stopper (10), and the spacing between the third rubber stopper (12) and the fourth rubber stopper (14) is the same and is greater than the diameter of the precession vortex gas flowmeter (1).

4. The protective precession vortex gas flowmeter according to claim 1, characterized in that: The housing (2) is arranged at the air inlet of the precession vortex gas flowmeter (1).

5. The protective precession vortex gas flowmeter according to claim 1, characterized in that: Anti-slip edges are provided on the outer wall of the handle (5).

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