Air inlet filter
The intake filter, constructed with a rectangular iron frame, utilizes a corrugated flow channel and a V-shaped structure to block sand and gravel, thus solving the problem of easy adhesion of the filter membrane, reducing replacement frequency and cost, and ensuring the stability of airflow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU QICHUANG YOUKANG ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, when equipment such as gas turbines are operating in desert areas, the filter membrane is easily adhered to by sand and gravel, resulting in reduced flux, requiring frequent replacement, increasing filtration costs and affecting equipment operation.
The air intake filter, which uses a rectangular iron frame structure, uses a corrugated flow channel and V-shaped structure to block sand and gravel. Combined with the inclined plate and leakage hole design, it avoids sand and gravel accumulation and reduces the frequency of replacement.
It effectively blocks sand and gravel, reduces filtration costs, ensures stable airflow, and minimizes equipment operation interference.
Smart Images
Figure CN224214262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air intake filtration technology, and in particular to an air intake filter. Background Technology
[0002] Gas turbines and other equipment requiring air supply need a continuous influx of fresh air during operation. However, in desert regions, the air contains large amounts of sand and dust, which can easily affect the equipment's operation if they enter. To mitigate this impact, multi-stage filtration membranes are commonly used. These membranes effectively block sand and dust from entering; however, sand and dust tend to adhere to the membranes, reducing the airflow. To regain a higher flow rate, the membranes need to be replaced. Replacing the membranes alone increases filtration costs and requires frequent replacements, which in turn affects the normal operation of the equipment. Utility Model Content
[0003] This utility model provides an air intake filter to overcome the shortcomings of the prior art and solves the problem of frequent filtration when using a filter membrane to filter sand and gravel during air intake, thus having strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:
[0005] An air intake filter, made of iron, includes a rectangular frame with a lower pad welded to its lower end. The lower pad has multiple discharge holes and multiple corrugated elements arranged along its length. A corrugated flow channel is formed between two adjacent corrugated elements. When air passes through the corrugated flow channel, its corrugated structure can block sand and gravel in the air, thereby allowing the sand and gravel in the air to be discharged from the discharge holes of the lower pad. In this way, sand and gravel are blocked without the need for replacement, thus reducing filtration costs and not adversely affecting the operation of the equipment.
[0006] Furthermore, multiple horizontal bars are welded to the front side of the rectangular frame, and multiple slots are opened on the inner side of the horizontal bars. The front end of the corrugated part is locked in the slot. The horizontal bars can fix the front end of the corrugated part to prevent the corrugated part from moving due to the air flow during air intake, which would cause the width of the corrugated flow channel to increase or decrease, thereby affecting the filtration effect.
[0007] Furthermore, a rear frame is welded to the rear side of the rectangular frame, and a fixing frame is provided on the front side of the rear frame. The fixing frame acts on the rear side of the corrugated component to limit its position. The rear frame can stably fix the corrugated component within the rectangular frame.
[0008] Furthermore, an inclined plate is welded to the lower end of the rectangular frame. The inclined plate is located directly below the lower pad. The inclined plate facilitates the discharge of the blocked sand and gravel, thereby preventing the sand and gravel from accumulating inside the rectangular frame.
[0009] Furthermore, the rear end of the inclined plate extends from the rear side of the rectangular frame, and side plates are bent on both sides. The inclined plate extending from the rectangular frame is located below the rear frame. Multiple drainage holes are provided at the lower end of the rear frame. The drainage holes can prevent sand and gravel from entering the rear frame with the airflow and accumulating on it.
[0010] Furthermore, the rear end of the lower pad is bent upwards with a baffle to prevent sand and gravel from moving backwards in the airflow.
[0011] Furthermore, the horizontal bars have a concave structure to enhance their structural strength and also improve the limiting effect on the corrugated parts.
[0012] Furthermore, the corrugated component includes multiple V-shaped structures with the openings of two adjacent V-shaped structures facing opposite directions. When the airflow passes through the V-shaped structure, it will reduce the energy of the sand and gravel through the surface in contact with the air and block the sand and gravel, so that the sand and gravel do not have enough power to continue moving forward and fall down onto the lower pad.
[0013] Furthermore, the V-shaped structure has multiple concave structures. When the airflow passes through the concave structures, it will form a vortex, thereby blocking the movement of sand and gravel.
[0014] Furthermore, the corrugated component includes a first vertical plate, a first inclined plate bent at the front side of the first vertical plate, the width direction of the first inclined plate forming an acute angle with the width direction of the first vertical plate, a first connecting plate bent at the rear side of the first vertical plate, a second vertical plate welded to the first connecting plate, a second connecting plate bent at one side of the second vertical plate, the second connecting plate and the first vertical plate forming a first concave structure, a third connecting plate bent at the other side of the second vertical plate, a third vertical plate welded to the third connecting plate, a fourth connecting plate bent at one side of the third vertical plate, the fourth connecting plate and the second vertical plate forming a second concave structure, and a second inclined plate bent at the other side of the third vertical plate, the width direction of the second inclined plate forming an acute angle with the width direction of the third vertical plate.
[0015] The first vertical plate and the second vertical plate form a first V-shaped structure, and the second vertical plate and the third vertical plate form a second V-shaped structure. The openings of the first V-shaped structure and the second V-shaped structure face opposite directions.
[0016] The advantages of the above technical solution are:
[0017] The solution provided by this utility model does not require frequent replacement, but only periodic cleaning, thereby reducing the cost of air filtration. Furthermore, it ensures the filtration effect while also preventing significant fluctuations in airflow. Attached Figure Description
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.
[0019] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .
[0020] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .
[0021] Figure 3 A three-dimensional structural diagram of the rectangular frame is shown.
[0022] Figure 4 A three-dimensional structural diagram of the corrugated component is shown. Detailed Implementation
[0023] like Figures 1-4 As shown, an air intake filter includes a rectangular frame 1, a lower pad 23 welded to the lower end of the rectangular frame 1, a plurality of discharge holes 24 opened on the lower pad 23, a baffle 25 bent upward at the rear end of the lower pad 23, and a plurality of corrugated members arranged along the length of the lower pad 23, with a corrugated flow channel formed between two adjacent corrugated members.
[0024] Multiple horizontal bars 10 are welded to the front side of the rectangular frame 1. Multiple slots are provided on the inner side of the horizontal bars 10. The front end of the corrugated part is locked in the slot. The horizontal bars 10 have a concave structure.
[0025] A rear frame 2 is welded to the rear side of the rectangular frame 1. A fixing frame 21 is provided on the front side of the rear frame 2. The fixing frame 21 acts on the rear side of the corrugated part to limit the corrugated part.
[0026] An inclined plate 26 is welded to the lower end of the rectangular frame 1, and the inclined plate 26 is located directly below the lower pad 23. The rear end of the inclined plate 26 extends out from the rear side of the rectangular frame 1, and side plates 27 are bent on both sides. The inclined plate 26 extending out from the rectangular frame 1 is located below the rear frame 2, and multiple drainage holes 20 are opened at the lower end of the rear frame 2.
[0027] The corrugated component includes multiple V-shaped structures, with the openings of two adjacent V-shaped structures facing opposite directions, and multiple concave structures provided on the V-shaped structures.
[0028] In a specific embodiment, the corrugated component includes a first vertical plate 3, a first inclined plate 30 bent at the front side of the first vertical plate 3, the width direction of the first inclined plate 30 forming an acute angle with the width direction of the first vertical plate 3, a first connecting plate 31 bent at the rear side of the first vertical plate 3, a second vertical plate 33 welded to the first connecting plate 31, a second connecting plate 32 bent at one side of the second vertical plate 33, the second connecting plate 32 and the first vertical plate 3 forming a first concave structure, a third connecting plate 34 bent at the other side of the second vertical plate 33, a third vertical plate 35 welded to the third connecting plate 34, a fourth connecting plate 37 bent at one side of the third vertical plate 35, the fourth connecting plate 37 and the second vertical plate 33 forming a second concave structure, and a second inclined plate 36 bent at the other side of the third vertical plate 35, the width direction of the second inclined plate 36 forming an acute angle with the width direction of the third vertical plate 35.
[0029] The first vertical plate 3 and the second vertical plate 33 form a first V-shaped structure, and the second vertical plate 33 and the third vertical plate 35 form a second V-shaped structure. The openings of the first V-shaped structure and the second V-shaped structure face opposite directions.
[0030] In specific application examples, multiple air intake filters provided by this solution can be installed in the air intake duct to achieve the purpose of filtering sand and gravel in the air to a certain extent. Of course, since this filtration method can only filter larger sand and gravel particles, and has no effect on filtering micro-dust and ultra-micro-dust, other filtration devices can be used for further air filtration. The filters provided by this solution cannot completely achieve the purpose of air filtration. The purpose of this solution is to reduce the content of larger sand and gravel particles in the air, and according to the following description, it can achieve this effect.
[0031] The principle of sand and gravel filtration is as follows: When air passes through the flow channel formed by the corrugated component, due to the multiple V-shaped structures on the corrugated component, sand and gravel in the air have a very high probability of colliding with the windward side of the V-shaped structure as the air moves with it. This causes the sand and gravel to lose sufficient forward momentum and fall downward onto the lower pad 23, and then be discharged through the discharge hole 24 onto the inclined plate 26. In addition, some unblocked sand and gravel will continue to move with the air. When the air passes through the concave structure, it will create a swirling flow, which will block the sand and gravel and then discharge it. Of course, there will be cases where the blocking described above is not blocked. Therefore, multiple stages of this device can be set to achieve the desired filtration effect and capacity for sand and gravel.
[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An air intake filter, characterized in that, Includes a rectangular frame (1), with a lower pad (23) welded to the lower end of the rectangular frame (1), the lower pad (23) having multiple discharge holes (24), the lower pad (23) having multiple corrugated parts along its length, a corrugated flow channel being formed between two adjacent corrugated parts, and a baffle (25) being bent upward at the rear end of the lower pad (23). The corrugated component includes multiple V-shaped structures, with the openings of two adjacent V-shaped structures facing opposite directions; The V-shaped structure has multiple concave structures; The corrugated component includes a first vertical plate (3), a first inclined plate (30) bent at the front side of the first vertical plate (3), the width direction of the first inclined plate (30) and the width direction of the first vertical plate (3) forming an acute angle, a first connecting plate (31) bent at the rear side of the first vertical plate (3), a second vertical plate (33) welded onto the first connecting plate (31), a second connecting plate (32) bent at one side of the second vertical plate (33), the second connecting plate (32) and the first vertical plate (3) forming a first concave shape. The structure has a third connecting plate (34) bent on the other side of the second vertical plate (33), a third vertical plate (35) welded to the third connecting plate (34), a fourth connecting plate (37) bent on one side of the third vertical plate (35), a second concave structure formed between the fourth connecting plate (37) and the second vertical plate (33), and a second inclined plate (36) bent on the other side of the third vertical plate (35), with an acute angle between the width direction of the second inclined plate (36) and the width direction of the third vertical plate (35). The first vertical plate (3) and the second vertical plate (33) form a first V-shaped structure, and the second vertical plate (33) and the third vertical plate (35) form a second V-shaped structure. The openings of the first V-shaped structure and the second V-shaped structure face opposite directions.
2. The intake filter according to claim 1, characterized in that, Multiple horizontal bars (10) are welded to the front side of the rectangular frame (1). Multiple slots are opened on the inner side of the horizontal bars (10), and the front end of the corrugated part is locked in the slot.
3. The intake filter according to claim 1, characterized in that, A rear frame (2) is welded to the rear side of the rectangular frame (1). A fixing frame (21) is provided on the front side of the rear frame (2). The fixing frame (21) acts on the rear side of the corrugated part to limit the corrugated part.
4. The intake filter according to claim 1, characterized in that, An inclined plate (26) is welded to the lower end of the rectangular frame (1), and the inclined plate (26) is located directly below the lower pad (23).
5. The intake filter according to claim 4, characterized in that, The rear end of the inclined plate (26) extends from the rear side of the rectangular frame (1), and side plates (27) are bent on both sides. The inclined plate (26) extending from the rectangular frame (1) is located below the rear frame (2), and multiple holes (20) are opened at the lower end of the rear frame (2).
6. The intake filter according to claim 2, characterized in that, The horizontal bar (10) has a concave structure.