Wear-resistant polyurethane ceramic flowmeter

Abstract

The utility model relates to the technical field of flow meters, in particular to a wear-resistant polyurethane ceramic flow meter which comprises a flow meter shell and an elastic lining body clamped and embedded in the flow meter shell, and a plurality of wear-resistant ceramic blocks are arranged in the elastic lining body. Any ceramic block is provided with a dovetail anti-falling block used for preventing the ceramic block from being abraded and falling off, by means of the arrangement of the elastic lining body clamped and embedded in the flow meter shell, a high-speed mixed medium is prevented from directly impacting the flow meter shell, meanwhile, by means of the arrangement of the ceramic blocks in the elastic lining body, the abrasion resistance of the flow meter is improved, and the service life of the flow meter is prolonged. The design of the dovetail anti-falling block on the ceramic block is utilized, the dovetail anti-falling block and the elastic lining body form a mutual embedding structure, and when the flowmeter is impacted and abraded by a high-speed mixed medium, the dovetail anti-falling block can effectively prevent the ceramic block from falling off from the elastic lining body due to impact and abrasion; it is ensured that the flow meter continuously and accurately meters fluid of a high-speed mixed medium, and the service life of the flow meter is prolonged.

Description

Technical Field

[0001] This application relates to the field of flow meter technology, and in particular to a wear-resistant polyurethane ceramic flow meter. Background Technology

[0002] Currently, in dredging projects, vessels need to measure fluids containing complex mixtures of media. These media typically include debris such as silt, gravel, sharp shells, and scrap steel cables, with flow velocities reaching 3-10 m / s, creating an extreme working environment characterized by strong impact and high abrasion. Under these conditions, the inlet structure of traditional ceramic flowmeters becomes a core weak point restricting equipment reliability. Hard particles in the mixed media directly impact the ceramic components at the inlet. Since the ceramic components are glued to the flowmeter, the ceramic layer is easily broken and detached, exposing the internal insulation structure, which can lead to fluid leakage or short circuits, causing flowmeter failure. This situation warrants improvement. Utility Model Content

[0003] In order to prevent the ceramic components from falling off due to wear under the impact of high-speed mixing media, thereby ensuring the normal use of the flow meter, this application provides a wear-resistant polyurethane ceramic flow meter.

[0004] This application provides a wear-resistant polyurethane ceramic flow meter, which adopts the following technical solution:

[0005] A wear-resistant polyurethane ceramic flow meter includes a flow meter housing and an elastic liner embedded inside the flow meter housing. The elastic liner contains a plurality of wear-resistant ceramic blocks, and each of the ceramic blocks is provided with a dovetail anti-detachment block to prevent the ceramic block from wearing off.

[0006] By adopting the above technical solution, the elastic liner embedded in the flowmeter housing prevents the high-speed mixing medium from directly impacting the flowmeter housing. At the same time, the ceramic block inside the elastic liner improves the wear resistance of the flowmeter. Furthermore, the dovetail anti-detachment block design on the ceramic block forms an interlocking structure with the elastic liner. When the flowmeter operates under harsh conditions such as dredging projects and is subjected to impact and wear from the high-speed mixing medium, the dovetail anti-detachment block can effectively prevent the ceramic block from falling out of the elastic liner due to impact and wear, ensuring that the flowmeter can continuously and accurately measure the high-speed mixing medium and extend the service life of the flowmeter.

[0007] Preferably, the flow meter housing is provided with a wear-resistant ring, the wear-resistant ring is provided with a first wedge-shaped surface, and the elastic inner liner is provided with a wear-resistant inlet ceramic, and the first wedge-shaped surface and the second wedge-shaped surface form an abutting fit.

[0008] By adopting the above technical solution, the first wedge-shaped surface on the wear-resistant ring and the second wedge-shaped surface on the valve ceramic form an abutting fit. When subjected to external impact, the first wedge-shaped surface and the second wedge-shaped surface can generate greater friction and biting force. This structure can provide stable fixed support for the valve ceramic, ensuring that the valve ceramic will not tip over or fall off under the worst working conditions, but will slowly withstand wear, ensuring that the flow meter can operate stably under harsh working conditions.

[0009] Preferably, two dovetail anti-detachment blocks are provided on any one of the ceramic blocks, and any one dovetail anti-detachment block is formed on the side of the ceramic block away from the high-speed mixing medium.

[0010] By adopting the above technical solution, the ceramic block is equipped with two dovetail anti-detachment blocks, which form a double interlocking and locking mechanism with the elastic liner, significantly reducing the risk of the ceramic block falling off from the elastic liner and ensuring that the ceramic block will not fall off even under extreme working conditions.

[0011] Preferably, a connecting adhesive layer is provided between the elastic liner and the ceramic block.

[0012] By adopting the above technical solution, the connecting adhesive layer can fill the tiny gap between the elastic liner and the ceramic block, while enhancing the adhesion between the elastic liner and the ceramic block, improving the firmness of the bond between the ceramic block and the elastic liner, and ensuring the stability and reliability of the overall structure of the flow meter.

[0013] Preferably, both the ceramic block and the dovetail anti-detachment block are made of zirconia ceramic material.

[0014] By adopting the above technical solution, the ceramic block and the dovetail anti-detachment block are made of zirconia ceramic material. Zirconia ceramic has both good wear resistance and toughness. Its high wear resistance can effectively resist the erosion and wear of high-speed mixed media and extend the service life of the ceramic block. Its high toughness can make the ceramic block less likely to break when it is impacted, ensuring that the flow meter can operate stably in complex and harsh environments.

[0015] Preferably, the elastic liner is made of polyurethane material.

[0016] By adopting the above technical solution, the elastic liner is made of polyurethane material. Polyurethane material has good tensile strength, tear strength, resilience, shear strength and peel strength, thereby ensuring that the ceramic block is stably set on the flow meter housing, thus extending the effective service life of the ceramic flow meter and improving the applicability of the flow meter under harsh working conditions.

[0017] Preferably, signal electrodes are symmetrically arranged on the flow meter housing along its radial direction. Each signal electrode includes an integrally formed cylindrical portion and a conical portion. The cylindrical portion is disposed inside an elastic liner, and the flow meter housing is connected to the end of the conical portion away from the cylindrical portion.

[0018] By adopting the above technical solution, the signal electrodes are constructed with an integrated cylindrical and conical structure. Since the conical part is responsible for the critical insulation and sealing function, even when the cylindrical part gradually thins due to long-term wear, or even when the cylindrical part is completely worn away, as long as the conical part remains intact, the insulation and sealing of the electrode can be ensured to remain unaffected, allowing the flow meter to continue to work normally. This ensures the stability and accuracy of signal detection and transmission during long-term use of the flow meter.

[0019] Preferably, the flowmeter housing has threaded holes corresponding to the positions and numbers of the signal electrodes, and the tapered portion of any of the signal electrodes is threadedly connected to the threaded hole.

[0020] By adopting the above technical solution, the installation of the signal electrode is made more convenient and faster by using the tapered part of the signal electrode to connect with the threaded hole, thereby improving production efficiency.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By utilizing the elastic liner embedded inside the flowmeter housing, the flowmeter housing is prevented from being directly impacted by the high-speed mixing medium. At the same time, the ceramic block inside the elastic liner improves the wear resistance of the flowmeter. Furthermore, the dovetail anti-detachment block design on the ceramic block forms an interlocking structure with the elastic liner. When the flowmeter operates under harsh conditions such as dredging projects and is subjected to impact and wear from the high-speed mixing medium, the dovetail anti-detachment block can effectively prevent the ceramic block from falling out of the elastic liner due to impact and wear. This ensures that the flowmeter can continuously and accurately measure the high-speed mixing medium and extends the service life of the flowmeter.

[0023] 2. By utilizing the first wedge-shaped surface on the wear-resistant ring and the second wedge-shaped surface on the valve ceramic to form an abutting fit, when subjected to external impact, the first wedge-shaped surface and the second wedge-shaped surface can generate greater friction and interlocking force. This structure can provide stable fixed support for the valve ceramic, ensuring that the valve ceramic will not tip over or fall off under the worst working conditions, but will slowly withstand wear, ensuring that the flow meter can operate stably under harsh working conditions;

[0024] 3. The signal electrodes utilize an integrated cylindrical and conical structure. Since the conical part is responsible for the critical insulation and sealing function, even when the cylindrical part gradually thins due to long-term wear, or even when the cylindrical part is completely worn away, as long as the conical part remains intact, the insulation and sealing of the electrode can be ensured to remain unaffected, allowing the flow meter to continue to work normally. This guarantees the stability and accuracy of signal detection and transmission during long-term use of the flow meter. Attached Figure Description

[0025] Figure 1 This is an isometric schematic diagram of the main overall structure in the embodiments of this application;

[0026] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the ceramic block and the dovetail anti-detachment block in the embodiments of this application;

[0027] Figure 3 yes Figure 1 The image shows a magnified portion of the fit between the first wedge-shaped surface of the wear-resistant ring and the second wedge-shaped surface of the gate ceramic.

[0028] Figure 4 This is a schematic diagram illustrating the main signal electrode structure in the embodiments of this application.

[0029] Reference numerals: 1. Flowmeter housing; 2. Elastic inner liner; 3. Ceramic block; 31. Dovetail anti-detachment block; 4. Wear-resistant ring; 41. First wedge-shaped surface; 5. Orifice ceramic; 51. Second wedge-shaped surface; 6. Signal electrode; 61. Cylindrical part; 62. Conical part. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0031] This application discloses a wear-resistant polyurethane ceramic flow meter.

[0032] Reference Figure 1 A wear-resistant polyurethane ceramic flow meter includes a flow meter housing 1 and an elastic inner liner 2. The flow meter housing 1 is a stainless steel cylindrical structure. The elastic inner liner 2 is embedded in the inner wall of the flow meter housing 1 by a casting process. Multiple ceramic blocks 3 are uniformly embedded inside the elastic inner liner 2. In this embodiment, the elastic inner liner 2 is made of polyurethane material, and the ceramic blocks 3 are made of zirconia ceramic material.

[0033] Reference Figure 1Polyurethane material possesses excellent tensile strength, tear strength, resilience, shear strength, and peel strength. When combined with ceramic block 3 and flowmeter housing 1, the tensile and tear strength of polyurethane material ensures the stability of the elastic liner 2's own structure, making it less susceptible to damage from external forces. The resilience allows the elastic liner 2 to quickly return to its original shape after being impacted, continuously providing support and cushioning for ceramic block 3. The excellent shear and peel strength ensure a firm bond between the elastic liner 2, ceramic block 3, and housing, preventing delamination or detachment during operation, thereby extending the effective service life of the ceramic flowmeter and improving its applicability under harsh working conditions.

[0034] Reference Figure 1 Zirconia ceramics possess both excellent wear resistance and toughness. Under harsh working conditions such as dredging vessels, the high wear resistance of zirconia ceramics can effectively resist the erosion and wear of high-speed mixed media, extending the service life of ceramic block 3. The high toughness of zirconia ceramics makes ceramic block 3 less prone to breakage when subjected to impact. Even if cracks occur in extreme cases, the integrity of the structure can be maintained, preventing ceramic block 3 from falling off and affecting the normal operation of the flow meter, further ensuring that the flow meter can operate stably in complex and harsh environments.

[0035] Reference Figure 1 and Figure 2 Each ceramic block 3 has a dovetail anti-detachment block 31 formed on the side opposite to the high-speed flowing medium. There are two dovetail anti-detachment blocks 31 on each ceramic block 3. The dovetail anti-detachment blocks 31 are made of zirconia ceramic material. The elastic liner 2 is provided with dovetail grooves corresponding to the position and number of the dovetail anti-detachment blocks 31. The dovetail anti-detachment blocks 31 and the corresponding dovetail grooves cooperate with each other. When the flow meter is working under harsh conditions such as dredging projects and is subjected to impact and wear of high-speed mixed media, the dovetail anti-detachment blocks 31 can effectively prevent the ceramic block 3 from falling out of the elastic liner 2 due to impact and wear, thereby maintaining the integrity of the internal structure of the flow meter, ensuring that the flow meter can continuously and accurately measure the fluid containing complex mixed media, extending the service life of the flow meter and reducing equipment maintenance costs.

[0036] Reference Figure 1 and Figure 3 A wear-resistant ring 4 is welded to the inlet of the flow meter housing 1. The wear-resistant ring 4 is made of stainless steel and is fixed by polyurethane casting. That is, the wear-resistant ring 4 is set inside the elastic liner 2. A first wedge-shaped surface 41 is machined on the wear-resistant ring 4. An inlet ceramic 5 is embedded inside the elastic liner 2. The inlet ceramic 5 is made of zirconia ceramic material and a second wedge-shaped surface 51 is machined on the inlet ceramic 5. The first wedge-shaped surface 41 and the second wedge-shaped surface 51 form an abutting fit.

[0037] Reference Figure 1A connecting adhesive layer is coated between the elastic liner 2 and the ceramic block 3, and between the elastic liner 2 and the dovetail anti-detachment block 31. The connecting adhesive layer can fill the tiny gaps between the elastic liner 2 and the ceramic block 3, and between the elastic liner 2 and the dovetail anti-detachment block 31, enhancing the adhesion. When the mixed medium impacts the ceramic block 3, the connecting adhesive layer can disperse and transfer part of the impact force to the elastic liner 2, playing a role in buffering and stress dispersion. This helps reduce the risk of the ceramic block 3 cracking due to local stress concentration, ensuring the stability and reliability of the overall flowmeter structure.

[0038] Reference Figure 1 and Figure 4 Signal electrodes 6 are symmetrically mounted on the flow meter housing 1 along its radial direction. The signal electrodes 6 are integrally machined from a cylindrical part 61 and a conical part 62. The cylindrical part 61 is embedded inside the elastic inner liner 2. The flow meter housing 1 is connected to the end of the conical part 62 away from the cylindrical part 61. Threaded holes are opened on the flow meter housing 1 corresponding to the position and number of signal electrodes 6. The conical part 62 of any signal electrode 6 is threadedly connected to the threaded hole and locked by a nut.

[0039] Reference Figure 1 and Figure 4 Since the tapered portion 62 is responsible for the critical insulation and sealing function, even when the cylindrical portion 61 gradually thins due to long-term wear, or even when the cylindrical portion 61 is completely worn away, as long as the tapered portion 62 remains intact, the insulation and sealing of the signal electrode 6 can be ensured to remain unaffected, thus extending the service life of the signal electrode 6.

[0040] The implementation principle of this application embodiment is as follows: when the mixed medium passes through the flow meter at high speed, the ceramic block 3 and the valve ceramic 5 are subjected to long-term impact. The dovetail anti-detachment block 31 prevents the ceramic block 3 from falling off. At the same time, the first wedge-shaped surface 41 of the wear-resistant ring 4 abuts against the second wedge-shaped surface 51 of the valve ceramic 5, thereby increasing the friction and interlocking force between the wear-resistant ring 4 and the valve ceramic 5 to prevent the valve ceramic 5 from falling off.

[0041] The cylindrical portion 61 of the signal electrode 6 shortens as the ceramic block 3 gradually wears down, but the tapered portion 62 continues to ensure insulation performance, thereby ensuring that the ceramic flow meter can work properly.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wear-resistant polyurethane ceramic flow meter, characterized in that: It includes a flow meter housing (1) and an elastic inner liner (2) embedded inside the flow meter housing (1). The elastic inner liner (2) is provided with a plurality of wear-resistant ceramic blocks (3). Each of the ceramic blocks (3) is provided with a dovetail anti-detachment block (31) to prevent the ceramic block (3) from wearing off.

2. The wear-resistant polyurethane ceramic flow meter according to claim 1, characterized in that: The flow meter housing (1) is provided with a wear-resistant ring (4), the wear-resistant ring (4) is provided with a first wedge-shaped surface (41), the elastic inner liner (2) is provided with a wear-resistant inlet ceramic (5), and the first wedge-shaped surface (41) and the second wedge-shaped surface (51) form an abutting fit.

3. The wear-resistant polyurethane ceramic flow meter according to claim 1, characterized in that: Two dovetail anti-detachment blocks (31) are provided on any of the ceramic blocks (3), and any one dovetail anti-detachment block (31) is formed on the side of the ceramic block (3) away from the high-speed mixing medium.

4. The wear-resistant polyurethane ceramic flow meter according to claim 1, characterized in that: A connecting adhesive layer is provided between the elastic liner (2) and the ceramic block (3).

5. The wear-resistant polyurethane ceramic flow meter according to claim 1, characterized in that: Both the ceramic block (3) and the dovetail anti-detachment block (31) are made of zirconium oxide ceramic material.

6. The wear-resistant polyurethane ceramic flow meter according to claim 1, characterized in that: The elastic inner liner (2) is made of polyurethane material.

7. The wear-resistant polyurethane ceramic flow meter according to claim 1, characterized in that: The flow meter housing (1) is symmetrically provided with signal electrodes (6) along its radial direction. The signal electrodes (6) include an integrally formed cylindrical part (61) and a conical part (62). The cylindrical part (61) is disposed inside the elastic inner liner (2). The flow meter housing (1) is connected to the end of the conical part (62) away from the cylindrical part (61).

8. The wear-resistant polyurethane ceramic flow meter according to claim 7, characterized in that: The flowmeter housing (1) has threaded holes corresponding to the positions and numbers of the signal electrodes (6), and the tapered part (62) of any of the signal electrodes (6) is threadedly connected to the threaded hole.

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