Anti-scour slag collecting device for filter

Abstract

The utility model discloses an anti-scour slag collecting device for a filter, which belongs to the technical field of filters and comprises a lower ring body, a planar screen plate, at least two support columns and a concave screen plate, the planar screen plate is a circular screen plate fixedly mounted and covered on the lower ring body, the at least two support columns are fixed on the lower ring body, and the concave screen plate is fixed on the lower ring body. The concave net plate is fixed to the upper ends of the supporting columns, the concave net plate is in a concave shape towards the plane net plate, and through holes are formed in the concave bottom of the concave net plate. According to the anti-scour slag collecting device for the filter, the performance and reliability of the filter are effectively improved through the simple structure, the low machining cost, the rapid equipment mode and the high economic benefit, meanwhile, the production and maintenance cost is reduced, and market popularization is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to an anti-impact slag collecting device for filters. Background Art

[0002] Filters play a vital role in fluid pipeline engineering, effectively removing solid impurities from liquids or gases and protecting critical equipment such as pumps, valves, and instruments. This helps extend equipment life, reduce maintenance costs, and improve system efficiency. Y-type strainers are a common protective device with a Y-shaped housing. They are suitable for filtering media such as water, steam, gas, and oil. As fluid passes through the filter element (such as a metal screen or basket), impurities are trapped and clean fluid is discharged through the outlet. Impurities can be regularly cleaned through the bottom drain to maintain efficiency. However, Y-type strainers also have some drawbacks in long-term operation. First, the screen requires regular cleaning, otherwise flow capacity will decrease, leading to system blockage. Second, vortexes easily form at the Y-shaped branch, causing impurities to accumulate within the filter and wash away the cover plate, accelerating wear, affecting sealing performance, and ultimately causing filter leakage. These issues are particularly prominent under high-pressure or high-temperature conditions and can pose serious safety hazards.

[0003] To address these issues, our company developed a filter with slag scouring prevention. This filter features an inner pocket formed by a concave filter screen. The perforated concave filter screen effectively creates eddy currents, preventing slag scouring, significantly reducing impurity scouring, and extending equipment life. This design significantly improves the shortcomings of traditional filters. However, after a period of practical application, it was discovered that the filter screen structure needed further optimization in terms of manufacturing costs.

[0004] First, the concave filter's complex construction results in significantly higher manufacturing costs than traditional flat filters. This increased cost may affect the product's competitiveness in the market, especially with price-sensitive customers. Second, the assembly process for the custom-shaped mesh bag presents significant technical challenges, which can lead to low assembly efficiency, increased assembly time, and increased labor costs. Furthermore, since the mesh bag's shape differs significantly from traditional integrated designs, additional tooling and steps are required during manufacturing, further increasing production complexity and process requirements. The high demands of the manufacturing process necessitate strict control over material selection and machining precision to ensure that the filter performs as expected. However, any flaws in the process could result in reduced filtration efficiency or a shortened service life. Therefore, to address these issues, in-depth optimization and improvement are urgently needed during subsequent R&D and production processes to ensure that the filter achieves a reasonable balance between performance and cost, while also enhancing its reliability and effectiveness in practical applications. Utility Model Content

[0005] In response to the problems existing in the prior art, the utility model provides a filter anti-scouring slag collecting device designed to solve technical problems such as high manufacturing cost, difficult assembly and high manufacturing process requirements of the concave filter screen in the filter with anti-slag scouring function.

[0006] The utility model is implemented as follows: an anti-impact slag collection device for a filter, characterized in that it includes a lower ring body, a flat mesh plate, pillars and a concave mesh plate, the flat mesh plate is a circular mesh plate fixedly installed and covered on the lower ring body, at least two of the pillars are fixed to the lower ring body, the upper ends of the pillars are fixed to the concave mesh plate, the concave mesh plate is formed in a concave shape toward the flat mesh plate, and the concave bottom of the concave mesh plate is provided with a through hole.

[0007] In the above technical solution, preferably, the axis of the support is perpendicular to the end face of the lower ring body.

[0008] In the above technical solution, preferably, the upper end of the pillar is fixed to the upper ring body, and the concave mesh plate is fixed to the upper ring body.

[0009] In the above technical solution, preferably, the concave mesh plate is in the shape of an inverted cone, and the through hole is located at the top of the inverted cone.

[0010] In the above technical solution, preferably, a slag collecting space is formed between the concave mesh plate and the flat mesh plate.

[0011] In the above technical solution, preferably, the flat mesh plate is provided with a card hole combined with the pillar.

[0012] The filter anti-scouring and slag collection device has many significant advantages and positive effects in design and application, as follows:

[0013] 1. Simple structure: The device's components are designed to be simple, making the overall structure easy to understand and manufacture. This simplification not only reduces the complexity of the design and production process, but also reduces the difficulty of manufacturing and assembly, thereby improving production efficiency.

[0014] 2. Low processing precision requirements: Compared with traditional filter structures, the low processing precision requirements of this device mean that more economical materials and processes can be used for production, which further reduces production costs and speeds up the production cycle, allowing products to be put on the market faster.

[0015] 3. Simple and fast installation: The device can be easily installed as an accessory in existing filters or directly installed as a retrofit component on existing equipment. This flexibility allows users to quickly and easily modify equipment during maintenance and upgrades, reducing downtime and improving overall operational efficiency.

[0016] 4. Reduced manufacturing costs: Due to its simple structure and low machining precision requirements, the anti-slag collection device has significantly reduced manufacturing costs compared to previous structures. This advantage makes the device more competitive in the market and can attract more customers with a more attractive price.

[0017] 5. Marketing Advantages: Reduced costs and a simplified assembly process give this device a significant advantage in marketing. Due to its wide applicability and ability to meet the needs of diverse users, it can be effectively promoted in a variety of application scenarios, further enhancing market acceptance.

[0018] 6. High Economic Benefits: By simplifying the structure and reducing costs, the device maximizes economic benefits in every aspect of production, maintenance, and replacement. Users can not only save on equipment purchase and maintenance costs, but also further reduce long-term operating costs by improving filter performance and service life.

[0019] In summary, the anti-impact and slag collection device for filters provides users with an efficient and economical solution with its advantages of simple structure, low cost, easy assembly and high economic benefits, which significantly improves the performance and use value of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is an installation state diagram of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] To address the technical issues of high manufacturing costs, difficult assembly, and high manufacturing process requirements for concave filter screens in filters with slag scouring prevention functions, this utility model provides a filter scouring prevention and slag collection device. This filter scouring prevention and slag collection device effectively improves the performance and reliability of the filter through its simple structure, low processing costs, rapid assembly, and high economic benefits, while reducing production and maintenance costs and facilitating market promotion. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings:

[0024] See also Figure 1 and Figure 2 A filter anti-impact slag collection device includes a lower ring body 1, a flat mesh plate 2, a support 3, an upper ring body 4 and a concave mesh plate 5.

[0025] The flat mesh plate is a circular mesh plate fixedly mounted and covering the lower ring body, with filter holes evenly distributed on it. In this embodiment, the flat mesh plate is provided with a clamping hole that is combined with the pillar. The clamping hole is designed to facilitate the assembly of the flat mesh plate. In this embodiment, the clamping holes are clamping holes with a number and position corresponding to the outer openings of the pillars. During installation, when no other components are installed on the upper end of the pillar, or when the lower end is not installed on the lower ring body, the flat mesh plate can be directly and quickly installed from top to bottom or from bottom to top and clamped between the pillars, forming a circular filter end face together with the lower ring body. In order to ensure the stability of the flat mesh plate in the installed state, the diameter of the flat mesh plate is rationally designed, and the clamping holes and the pillars are interference fit, and the friction generated by the interference fit ensures its stable installation state.

[0026] At least two pillars are fixed to the lower ring body. Further, the axis of the pillar is perpendicular to the end face of the lower ring body. The pillars in this embodiment are cylindrical straight rod pillars, and the lower ends are fixed to the lower ring body by threads.

[0027] The concave mesh plate is fixed to the upper end of the pillar. In this embodiment, specifically, the upper end of the pillar is fixed to the upper ring body, which is an annular component with the same diameter as the lower ring body, and the concave mesh plate is fixed to the upper ring body. The connection between the pillar and the upper ring body can be, but is not limited to, a screw connection. For example, the upper ring body can be a component integrally formed with the concave mesh plate, the outer edge of the concave mesh plate forms the upper ring body, a screw hole is machined on the lower end surface of the upper ring body, and a thread connected to the upper end of the pillar is machined.

[0028] The concave mesh plate is formed in a concave shape toward the flat mesh plate, and a through hole is provided at the bottom of the concave mesh plate. A slag collecting space is formed between the concave mesh plate and the flat mesh plate. Specifically, the concave mesh plate is in an inverted cone shape, and the through hole is located at the top of the inverted cone.

[0029] This device is equipped with and used on Y-shaped filters. When the internal pipeline of the filter flows from left to right, the concave mesh plate of this device can reduce the vortex formed by the fluid medium on the inner side of the Y-shaped branch of the filter, and prevent hard particles such as iron slag from rotating inside with the vortex and eroding the valve cover. At the same time, the slag collecting space inside the net bag shape can store iron slag, and the iron slag in the net bag shape is disturbed again by the fluid, further preventing the iron slag from forming vortex rotation with the medium, thereby avoiding rapid damage to the valve cover.

[0030] This device is installed in the filter as an accessory. The component can be used as a modification component of a traditional filter or as an accessory of a new filter. It can be installed or replaced from the end cover. It has an extremely simple structure, low cost and extremely high economic benefits.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filter anti-scouring and slag collection device, characterized by: It includes a lower ring body, a flat mesh plate, pillars and a concave mesh plate. The flat mesh plate is a circular mesh plate fixedly installed and covered on the lower ring body. At least two pillars are fixed to the lower ring body. The upper ends of the pillars are fixed to the concave mesh plate. The concave mesh plate is formed to be concave toward the flat mesh plate, and a through hole is provided at the concave bottom of the concave mesh plate.

2. The anti-scouring and slag collecting device for a filter according to claim 1, characterized in that: The axis of the support is perpendicular to the end surface of the lower ring body.

3. The anti-scouring and slag collection device for a filter according to claim 2, characterized in that: The upper end of the support is fixed to the upper ring body, and the concave mesh plate is fixed to the upper ring body.

4. The anti-scouring and slag collection device for a filter according to claim 3, characterized in that: The concave mesh plate is in an inverted cone shape, and the through hole is located at the top of the inverted cone.

5. The anti-scouring and slag collection device for a filter according to claim 4, characterized in that: A slag collecting space is formed between the concave mesh plate and the flat mesh plate.

6. The anti-scouring and slag collection device for a filter according to claim 4, characterized in that: The flat mesh plate is provided with a clamping hole combined with the pillar.

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