Impeller type flowmeter with corrosion-resistant zirconium oxide rotating shaft and shaft sleeve

Abstract

The utility model discloses an impeller type flowmeter with a corrosion-resistant zirconium oxide rotating shaft and a shaft sleeve, which belongs to the technical field of impeller type flowmeters and comprises a shell, an impeller is arranged in the shell and rotatably connected onto a connecting shaft, the connecting shaft is connected into a rectifier, the rectifier is connected to a water inlet of the shell, and the shaft sleeve is connected with a water outlet of the shell. A sensor is arranged in the shell, the sensor is connected into an instrument in an extending manner, and the instrument is connected to the shell. According to the utility model, the spiral cone-shaped rectifier is arranged at the water inlet of the flow meter, and the impeller is rotationally connected in the rectifier, so that the occupied area of the integral structure of the rectifier and the impeller is greatly reduced, the flow meter can be adaptively reduced according to different occasions, and the requirements of different occasions are met; meanwhile, the rotating shaft is made of zirconium oxide, so that the corrosion resistance of the impeller rotating shaft is greatly improved, and the service life of the flow meter is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of impeller flowmeters, and particularly relates to an impeller flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve. Background Technique

[0002] An impeller flowmeter installs a freely rotatable impeller in a pipeline. When the fluid to be measured (which can be a liquid or a gas) flows through the pipeline, the power of the fluid will impact and drive the impeller to rotate. There is a direct proportional relationship between the rotation speed of the impeller and the flow rate of the fluid, that is, the greater the flow rate, the faster the rotation speed of the impeller; conversely, the smaller the flow rate, the slower the rotation speed of the impeller. In order to convert the rotation speed of the impeller into a measurable electrical signal, some sensing and conversion devices are usually adopted, such as installing magnets or conductive materials on the impeller to generate electromagnetic signals or electrical pulses during rotation, and these signals are then captured by sensors and converted into electrical signals, which are then processed and amplified by electronic circuits, and finally output as voltage or frequency signals proportional to the flow rate.

[0003] However, in current flowmeters, the overall structure spacing between the impeller and the rectifier is too large, resulting in the flowmeter being unable to be made small according to requirements. At the same time, when the rotating shaft of the existing impeller flowmeter continuously passes through the liquid flow, the rotating shaft is prone to corrosion, seriously affecting the service life of the flowmeter. Content of the Utility Model

[0004] The purpose of the utility model is to provide an impeller flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve for the problem that the overall structure spacing between the impeller and the rectifier in current flowmeters is too large, resulting in the flowmeter being unable to be made small according to requirements, and at the same time, when the rotating shaft of the existing impeller flowmeter continuously passes through the liquid flow, the rotating shaft is prone to corrosion by some liquids, seriously affecting the service life of the flowmeter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: an impeller flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve, including a housing, an impeller is arranged inside the housing, the impeller is rotatably connected to a connecting shaft, the connecting shaft is connected inside a rectifier, the rectifier is connected to the water inlet of the housing, a sensor is arranged inside the housing, the sensor extends and is connected to an instrument, and the instrument is connected to the housing.

[0006] As a further description of the above technical scheme:

[0007] The overall structure of the rectifier is conical.

[0008] As a further description of the above technical scheme:

[0009] A plurality of water guide holes are provided on the rectifier, and the plurality of water guide holes are arranged in a swirling manner.

[0010] As a further description of the above technical solution:

[0011] The connecting shaft is made of zirconia.

[0012] As a further description of the above technical solution:

[0013] The impeller is located inside the rectifier.

[0014] As a further description of the above technical solution:

[0015] A plum blossom body is provided at the top of the rectifier, flange plates are provided at both ends of the outer shell, clamping grooves are provided on the flange plates, and the hollow body is clamped in the clamping grooves, and its middle position extends and is connected to the plum blossom body.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are:

[0017] In the present utility model, by providing a conical rectifier at the water inlet of the flowmeter and rotatably connecting the impeller inside the rectifier, the occupied volume of the overall structure of the rectifier and the impeller is greatly reduced, and the flowmeter can be adaptively reduced according to different occasions to meet the requirements of different occasions; at the same time, the rotating shaft is made of zirconia, which greatly improves the corrosion resistance of the impeller rotating shaft, thereby improving the service life of the flowmeter. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Is a three-dimensional view of an impeller type flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve Figure 1 .

[0020] Figure 2 Is a cross-sectional view of an impeller type flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve.

[0021] Figure 3 Is a three-dimensional view of an impeller type flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve Figure 2 .

[0022] Legend Explanation:

[0023] 1 - Outer shell; 2 - Impeller; 3 - Connecting shaft; 4 - Rectifier; 5 - Sensor; 6 - Instrument; 7 - Water guide hole; 8 - Plum blossom body; 9 - Flange; 10 - Card slot; 11 - Hollow body. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" 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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Please refer to Figures 1-3 , the present utility model provides a technical solution: an impeller flowmeter with a corrosion-resistant zirconia rotating shaft and shaft sleeve, including a housing 1, an impeller 2 is arranged inside the housing 1, the impeller 2 is rotatably connected to a connecting shaft 3, the connecting shaft 3 is connected inside a rectifier 4, the rectifier 4 is connected to the water inlet of the housing 1, a sensor 5 is arranged inside the housing 1, the sensor 5 extends and is connected to an instrument 6, and the instrument 6 is connected to the housing 1.

[0031] The impeller is connected to the connecting shaft through a shaft sleeve.

[0032] The overall structure of the rectifier 4 is conical.

[0033] A number of water guiding holes 7 are arranged on the rectifier 4, and the number of the water guiding holes 7 is arranged in a swirling manner. While rectifying the liquid, the flowing liquid is also made to generate a vortex shape when flowing, so that forces in different directions are generated during its flow, thereby generating a driving force on the impeller.

[0034] The connecting shaft 3 is made of zirconia. This greatly improves the corrosion resistance of the impeller rotating shaft, thereby improving the service life of the flowmeter.

[0035] The impeller 2 is located inside the rectifier 4. This greatly reduces the occupied volume of the overall structure of the rectifier and the impeller, and the flowmeter can be adaptively reduced according to different occasions to meet the requirements of different occasions.

[0036] A plum blossom body 8 is arranged at the top of the rectifier 4, flange plates 9 are arranged at both ends of the housing 1, a clamping groove 10 is arranged on the flange plate 9, a hollow body 11 is clamped in the clamping groove 10, and its middle position extends and is connected to the plum blossom body 8. The plum blossom body is clamped and fixed with screws at the same time to strengthen the stability of the installation, facilitate the installation of the rectifier, and also facilitate the later disassembly.

[0037] Working principle: By setting a conical rectifier at the water inlet of the flowmeter and rotatably connecting the impeller inside the rectifier, the occupied volume of the overall structure of the rectifier and the impeller can be greatly reduced. The flowmeter can be adaptively reduced according to different occasions to meet the requirements of different occasions. At the same time, the rotating shaft is made of zirconia, which greatly improves the corrosion resistance of the impeller rotating shaft, thereby increasing the service life of the flowmeter.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. An impeller flowmeter with a corrosion-resistant zirconium oxide shaft and sleeve, characterized in that: It includes a shell, an impeller is arranged in the shell, the impeller is rotatably connected to a connecting shaft, the connecting shaft is connected to a rectifier, the rectifier is connected to the water inlet of the shell, a sensor is arranged in the shell, the sensor is extended and connected to an instrument, and the instrument is connected to the shell.

2. The impeller flowmeter with corrosion-resistant zirconium oxide shaft and sleeve according to claim 1, characterized in that: The overall structure of the rectifier is conical.

3. The impeller flowmeter with corrosion-resistant zirconium oxide shaft and sleeve according to claim 2, characterized in that: The rectifier is provided with a plurality of water guide holes, and the plurality of water guide holes are arranged in a swirl-like manner.

4. The impeller flowmeter with corrosion-resistant zirconium oxide shaft and sleeve according to claim 1, characterized in that: The connecting shaft is made of zirconium oxide.

5. The impeller flow meter with corrosion-resistant zirconium oxide shaft and sleeve according to claim 4, characterized in that: The impeller is located in the rectifier.

6. The impeller flow meter with corrosion-resistant zirconium oxide shaft and sleeve according to claim 1, characterized in that: A plum blossom body is arranged on the top of the rectifier, flanges are arranged at both ends of the shell, a slot is arranged on the flange, the hollow body is snapped into the slot, and the middle position thereof is extended and connected to the plum blossom body.

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