Filtering device for water supply and drainage of construction project

Abstract

The utility model provides a kind of filter device for construction engineering water supply and drainage, including impact type sewage discharger, the one end of impact type sewage discharger is equipped with into valve body, and its other end is equipped with fixed disc and discharge valve body, the filter screen body fixedly installed on fixed disc is arranged in impact type sewage discharger interior, and sealing cover is fixedly installed on impact type sewage discharger;The utility model does not need to disassemble filter screen, after opening sewage cover, energy storage tank liquid impacts filter screen, by conical filter screen design, impurity is easy to gather and discharge, spring reinforcement, it can also be reverse flow impact, reduce cost and improve efficiency and keep unobstructed.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, and in particular relates to a filter device for water supply and drainage in construction projects. Background Technology

[0002] In building water supply and drainage systems, filters are crucial equipment for ensuring water quality and maintaining normal system operation. Common traditional filters include Y-type filters, T-type filters, basket filters, and cone filters. While these filters can effectively filter impurities in water to a certain extent, they generally present problems in subsequent impurity treatment stages. Currently, regardless of the type of filter used, removing impurities from the filter screen or its surface requires disassembling the internal filter structure. For example, with cone filters, because the filter screen is horizontally arranged inside, disassembling the internal filter screen necessitates disconnecting the pipe from the cone filter. This operation is extremely cumbersome, time-consuming, and requires a high level of technical skill from the operator. Furthermore, frequent disassembly can lead to decreased sealing performance at the connection points, causing leaks and increasing maintenance costs and system operational risks, negatively impacting the stable operation of the building water supply and drainage system.

[0003] Therefore, it is essential to invent a filtration device for water supply and drainage in construction projects. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a filtration device for water supply and drainage in construction projects, including an impact-type sewage discharger, an inlet valve body, a fixed plate, an outlet valve body, a filter screen body, and a sealing cover. The inlet valve body is installed at one end of the impact-type sewage discharger, and the fixed plate and outlet valve body are installed at the other end. The filter screen body fixedly installed on the fixed plate is disposed inside the impact-type sewage discharger, and the sealing cover is fixedly installed on the impact-type sewage discharger.

[0005] Preferably, the impact-type drain includes a filter body, a flange, an energy storage tank, a drain outlet, a pressure plate, and an energy storage spring. Flanges are integrally installed at both ends of the filter body and at the port of the drain outlet. One flange of the filter body is mounted to the valve body of the inlet valve body, and the flange of the other end is mounted to the fixed plate and the valve body of the outlet valve body. An energy storage tank and a drain outlet are integrally installed on the filter body, and a sealing cap is installed on the flange of the drain outlet. The pressure plate is elastically slidably installed inside the energy storage tank via the energy storage spring.

[0006] Preferably, a filter screen is provided at one end of the filter body, and a fixing plate fixedly connected to the filter screen is installed between the flange of the filter body and the valve body of the discharge valve body.

[0007] Preferably, the inner diameter of the fixed plate is smaller than the inner diameter of the filter body, and the filter screen body fixedly installed on the fixed plate is a conical filter screen structure with filter holes arranged on its surface. The filter screen body is close to the discharge valve body, and the pointed cone of the filter screen body faces the inlet valve body.

[0008] Preferably, the energy storage tank and the sewage outlet are integrally arranged on the filter body and are positioned opposite each other, with the energy storage tank located above the sewage outlet and both perpendicular to the ground.

[0009] Preferably, the internal area of ​​the filter body between the energy storage tank and the sewage outlet is the filter area, and the filter screen is located in the filter area inside the filter body. The liquid stored inside the energy storage tank can flow downwards and act on the filter screen.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In terms of sewage discharge, this invention eliminates the need to disassemble the internal filter screen; sewage discharge is achieved solely through the unique design of the impact-type sewage discharge device. When sewage discharge is required, opening the sealing cap of the sewage discharge pipe allows the liquid stored in the storage tank to flow downwards, impacting the filter screen and flushing impurities out of the sewage discharge pipe. This greatly simplifies the sewage discharge process and reduces maintenance difficulty and costs.

[0012] The pressure plate inside the energy storage tank of this utility model is elastically slidably installed by an energy storage spring. After the liquid enters the energy storage tank, the spring is compressed to store energy. When the liquid is discharged, the spring releases energy to push the pressure plate, which increases the liquid flow rate and pressure, and more effectively discharges impurities.

[0013] Moreover, the filter body of this utility model adopts a conical filter structure with the pointed cone facing the direction of the inlet valve body. This design increases the filtration area, which is conducive to the accumulation of impurities at the bottom of the cone and facilitates discharge through the drain pipe, thereby improving the sewage discharge effect and better ensuring the smooth operation of the water supply and drainage system. At the same time, compared with other traditional filter designs, the structural design of this drain pipe and conical filter can also match the backflow impact mechanism. The backflowing liquid can impact the inner surface of the filter and be discharged outward through the drain pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a half-sectional structural diagram of the present invention.

[0016] Figure 3 This is a half-sectional structural diagram of the impact-type sewage discharge device of this utility model.

[0017] Figure 4This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0018] In the picture:

[0019] Impact type drain 1, filter body 11, flange 12, energy storage tank 13, drain pipe 14, pressure plate 15, energy storage spring 16, inlet valve body 2, fixed plate 3, outlet valve body 4, filter screen body 5, sealing cover 6. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides a filtration device for water supply and drainage in construction projects, comprising an impact-type sewage discharger 1, an inlet valve body 2, a fixed plate 3, an outlet valve body 4, a filter screen body 5, and a sealing cover 6. The impact-type sewage discharger 1 has an inlet valve body 2 installed at one end and a fixed plate 3 and an outlet valve body 4 installed at the other end. The filter screen body 5, which is fixedly installed on the fixed plate 3, is located inside the impact-type sewage discharger 1. The sealing cover 6 is fixedly installed on the impact-type sewage discharger 1.

[0024] Furthermore, the impact-type drain 1 includes a filter body 11, a flange 12, an energy storage tank 13, a drain pipe 14, a pressure plate 15, and an energy storage spring 16. The filter body 11 is made of a corrosion-resistant metal material (such as 304 stainless steel), and its two ends and the outer end of the drain pipe 14 are integrally welded with flanges 12. The flanges 12 have evenly distributed bolt holes on their surface for sealing connections between the components.

[0025] The flange 12 at one end of the filter body 11 is sealed to the valve body flange of the valve body 2 by bolts (a rubber sealing gasket is provided at the connection). The flange 12 at the other end is sealed to both the fixed plate 3 and the valve body flange of the discharge valve body 4 by bolts. An energy storage tank 13 and a drain pipe 14 are integrally welded onto the filter body 11. Both are connected to the internal cavity of the filter body 11. The flange 12 at the outer end of the drain pipe 14 is bolted to a sealing cover 6 (a sealing gasket is provided between the sealing cover 6 and the flange 12 to ensure a seal under normal conditions). The energy storage tank 13 is a tubular structure with a closed top. A pressure plate 15 is movably installed inside. The edge of the pressure plate 15 slides against the inner wall of the energy storage tank 13 (an O-ring is provided to enhance the sealing performance). The top of the pressure plate 15 is elastically connected to the inner top of the energy storage tank 13 by an energy storage spring 16. The energy storage spring 16 is made of high-strength stainless steel and is in a naturally elongated state under normal conditions. When subjected to liquid pressure, it can be compressed to store energy.

[0026] Furthermore, a filter screen 5 is provided inside the filter body 11 near the discharge valve body 4. The conical bottom of the filter screen 5 is fixedly connected to the inner wall of the fixed plate 3 (e.g., by welding). The fixed plate 3 is clamped and fixed between the flange 12 at the end of the filter body 11 and the valve body flange of the discharge valve body 4 via a flange connection. The fixed plate 3 is made of the same metal material as the filter body 11, and its outer diameter matches the flange 12 of the filter body 11. A rigid sealing connection is achieved by bolts passing through the bolt holes of the fixed plate 3, the flange 12 of the filter body 11, and the flange of the discharge valve body 4. This ensures the stable installation of the filter screen 5 inside the filter body 11 and ensures that liquid can only enter the discharge valve body 4 through the filter screen 5, preventing unfiltered liquid from flowing directly.

[0027] Furthermore, the inner diameter of the fixed plate 3 is smaller than the inner diameter of the filter body 11. This size design creates an "expanding-contracting" transition structure inside the filter body 11. When liquid flows from the filter body 11 to the fixed plate 3, the water flow converges towards the center, enhancing the impact force on the filter screen 5. The filter screen 5, fixedly installed inside the fixed plate 3, is a conical filter structure made of stainless steel perforated mesh or woven mesh (the filter hole diameter is designed according to the filtration accuracy requirements, usually 1-5mm). Its surface is evenly distributed with filter holes. The installation position of the filter screen 5 is close to the discharge valve body 4, and its pointed cone head faces the direction of the inlet valve body 2, allowing impurities to slide down the conical surface to the bottom of the filter screen (near the drain pipe 14). At the same time, the pointed cone head facing the water inlet direction can guide the water flow to evenly impact the filter screen surface, reducing the risk of local blockage.

[0028] Furthermore, the energy storage tank 13 and the drain outlet 14, integrally mounted on the filter body 11, are spatially arranged vertically opposite each other. Specifically, the energy storage tank 13 extends vertically upwards, and the drain outlet 14 extends vertically downwards, with their axes collinear and both perpendicular to the ground. The energy storage tank 13, located at the top, naturally collects some of the liquid within the filter body 11 and stores pressure energy. The drain outlet 14, located at the bottom, conforms to the law of gravity-driven drainage, facilitating the accumulation of impurities towards the drain outlet 14 under gravity. Simultaneously, the vertically opposite structure allows the liquid released from the energy storage tank 13 to impact downwards in a straight line, directly acting on the surface of the filter screen 5 and the impurity accumulation area, thus improving the utilization rate of the impact force. In addition, both the energy storage tank 13 and the drain outlet 14 are integrally welded to the filter body 11, ensuring connection strength and sealing to prevent liquid leakage.

[0029] Furthermore, the internal area of ​​the filter body 11 between the energy storage tank 13 and the drain pipe 14 is defined as the filtration zone. This zone is the core area for liquid filtration and impurity separation. The filter screen 5 is entirely located within this zone, and its conical structure covers the main cross-section of this zone. When the device is in filtration mode, liquid flows into the filtration zone from the inlet valve body 2, is filtered by the filter screen 5, and flows out from the outlet valve body 4. Impurities are intercepted within the filtration zone (outside the filter screen).

[0030] The working principle is as follows: First, when the device is in normal filtration mode, liquid flows into the filter body 11 from the inlet valve 2. Since the pointed cone of the filter screen 5 faces the inlet valve 2 and is close to the outlet valve 4, the liquid will first contact the outer surface of the cone-shaped filter screen when flowing through the filtration area. Under the action of liquid pressure, liquid that meets the filtration accuracy enters the filter screen through the filter holes on the surface of the filter screen 5, then flows through the fixed plate 3 to the outlet valve 4 and is finally discharged, while impurities contained in the liquid are intercepted on the outside of the filter screen 5. At the same time, some liquid enters the energy storage tank 13 under pressure, pushing the pressure plate 15 to move upward and compressing the energy storage spring 16, so that the energy storage tank 13 stores a certain amount of pressurized liquid to reserve energy for subsequent sewage discharge impact. At this time, the sewage outlet 14 is sealed by the sealing cover 6 to ensure that impurities are effectively intercepted in the filtration area.

[0031] When sludge removal and cleaning are required, simultaneously close the inlet valve 2 and the outlet valve 4 to cut off the normal flow path of the liquid, and then open the sealing cap 6 on the drain port 14. At this time, the energy storage spring 16, under the action of elastic restoring force, pushes the pressure plate 15 downward, rapidly squeezing the pressurized liquid stored in the energy storage tank 13 downward, forming a powerful impact water flow. This impact water flow acts vertically on the outer surface of the filter screen 5 and the impurities in the filtration area, washing away stubborn impurities attached to the filter holes, and simultaneously driving the intercepted impurities to gather at the drain port 14 below, and finally discharge them outside the device through the drain port 14. After sludge removal is completed, close the sealing cap 6 and reopen the inlet valve 2 and the outlet valve 4, and the device returns to normal filtration status, thus achieving continuous filtration and sludge removal functions in this cycle.

[0032] When impurities are treated by backflow impact, the discharge valve body 4 is opened, the inlet valve body 2 is closed, and the sealing cover 6 on the drain pipe port 14 is opened. The liquid enters the filter body 11 through the discharge valve body 4. Since the pointed cone of the filter screen body 5 faces the inlet valve body 2 and is close to the discharge valve body 4, the reverse flow of liquid can impact the inner surface of the filter screen and be discharged outward through the drain pipe port 14.

[0033] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A filtration device for water supply and drainage in construction projects, characterized in that, The device includes an impact-type drain (1), an inlet valve body (2), a fixed plate (3), an outlet valve body (4), a filter screen (5), and a sealing cover (6). The impact-type drain (1) is equipped with an inlet valve body (2) at one end and a fixed plate (3) and an outlet valve body (4) at the other end. The filter screen (5) fixedly installed on the fixed plate (3) is located inside the impact-type drain (1). The impact-type drain (1) is fixedly installed with a sealing cover (6). The impact-type drain (1) includes a filter body (11), a flange (12), an energy storage tank (13), a drain outlet (14), a pressure plate (15), and an energy storage spring. (16) Both ends of the filter body (11) and the port of the drain pipe (14) are integrally provided with flanges (12). The flange (12) at one end of the filter body (11) is installed together with the valve body of the inlet valve body (2), and the flange (12) at the other end is installed together with the fixed plate (3) and the valve body of the outlet valve body (4). An energy storage tank (13) and a drain pipe (14) are integrally provided on the filter body (11). A sealing cover (6) is installed on the flange (12) of the drain pipe (14). The pressure plate (15) is elastically slidably installed in the energy storage tank (13) by means of an energy storage spring (16).

2. The filtration device for water supply and drainage in construction projects as described in claim 1, characterized in that: The filter body (11) has a filter screen (5) at one end inside. The fixed plate (3) that is fixedly connected to the filter screen (5) is installed between the flange (12) of the filter body (11) and the valve body of the discharge valve body (4).

3. A filtration device for water supply and drainage in construction projects as described in claim 2, characterized in that: The inner diameter of the fixed plate (3) is smaller than the inner diameter of the filter body (11). The filter screen (5) fixedly installed on the fixed plate (3) is a conical filter screen structure with filter holes on its surface. The filter screen (5) is close to the discharge valve body (4), and the pointed cone of the filter screen (5) faces the inlet valve body (2).

4. A filtration device for water supply and drainage in construction projects as described in claim 3, characterized in that: The energy storage tank (13) and the sewage outlet (14) integrally set on the filter body (11) are arranged opposite each other. The energy storage tank (13) is located above the sewage outlet (14), and both are perpendicular to the ground.

5. A filtration device for water supply and drainage in construction projects as described in claim 4, characterized in that: The internal area of ​​the filter body (11) between the energy storage tank (13) and the drain pipe (14) is the filter area. The filter screen (5) is located in the filter area inside the filter body (11). The liquid stored inside the energy storage tank (13) can flow downwards and act on the filter screen (5).

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