A quick-flushing type dirt removing device

Abstract

The utility model discloses a quick flush type decontamination equipment convenient to detach, including casing and top cap, the casing one side is established with the water inlet, the top cap top center place is established with the water outlet, the top cap is located the water outlet bottom integral connection has the connecting barrel, the connecting barrel bottom is provided with the filter structure, the filter structure includes a plurality of filters, the filter includes the connecting flange and the woven filter, the connecting flange is fixed in the up and down port department of woven filter, a plurality of the woven filter is collinear and is fixed connection through the connecting flange, through " oil cylinder drive mechanical tensile + reverse flushing " synergic design, first with filter silk clearance expansion realizes the hardening layer loose cracking, then combines the reverse water flow and peels off the impurity, fundamentally solves the traditional equipment " the core defect of insufficient backwash force, hardening layer is difficult to remove", ensures that the filter piece surface has no impurity residue, guarantees the long -term stability of filtration efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of dirt remover technology, specifically relating to a quick-flush dirt remover that is easy to disassemble. Background Technology

[0002] In fluid transport pipelines such as HVAC systems and industrial circulating water systems, in order to ensure fluid cleanliness and protect downstream equipment (such as heat exchangers, water pumps, precision valves, etc.) to operate stably, it is usually necessary to install a dirt filter in the pipeline to filter out solid particulate impurities carried in the fluid.

[0003] Currently, the most widely used type of filter in the market is the rapid backwash filter. The core filter element inside this type of equipment is mostly a mesh filter cartridge. Its working principle is as follows: during normal filtration, the fluid to be treated enters the filter through the inlet, passes through the filter holes on the filter cartridge wall, and impurities are trapped on the outer surface of the cartridge, while clean fluid flows out from the outlet. When the system pressure differential increases to a set value or when cleaning is performed according to a predetermined cycle, the backwash mode is activated: by switching valves, some clean fluid flows back into the filter cartridge, using the reverse water flow to flush away impurities adhering to the filter holes, and is discharged through a dedicated drain port.

[0004] However, existing backwash filters based on mesh filter cartridges have a significant technical drawback in practical applications. When the fluid contains viscous particles or has a high concentration of impurities, the impurities trapped on the outer surface of the filter cartridge tend to accumulate and compact under the pressure difference, forming a dense, slab-like layer. Conventional backwash water flows from the inside of the filter cartridge outwards, and its force is mainly concentrated on clearing the filter pores themselves. For the slab-like impurities already tightly adhered to the outer wall of the filter cartridge, the flushing force is insufficient. This means that the backwashing process often only removes loose impurities near the filter pores, failing to effectively break up and remove the slab-like layer. With long-term operation, the slab-like layer on the outer surface of the filter cartridge will continuously thicken, not only causing persistently high operating resistance (pressure drop) and increased energy consumption, but also significantly shortening the effective filtration area and service life of the filter cartridge. It may even cause secondary pollution to downstream equipment due to localized detachment of the slab-like material.

[0005] Therefore, there is an urgent need for a new type of filter solution that can more thoroughly remove caking impurities from the filter cartridge surface while retaining the advantages of rapid backwashing, thereby improving the efficiency of filter removal and the reliability of equipment operation. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-flushing decontamination device that is easy to disassemble, comprising a shell and a top cover. The shell has an inlet on one side, and the top cover has an outlet at the center of its top. The top cover is integrally connected to a connecting cylinder at the bottom of the outlet. A filter structure is provided at the bottom of the connecting cylinder. The filter structure includes multiple filters, each filter including a connecting flange and a woven filter basket. The connecting flange is fixed to the upper and lower ports of the woven filter basket. The multiple woven filter baskets are collinear and fixedly connected by the connecting flange. The connecting flange at the top of the woven filter basket is connected to the bottom of the connecting cylinder. A bottom cover is integrally fixed to the center of the connecting flange at the bottom of the woven filter basket, and a tensioning power component is provided at the bottom.

[0007] As a preferred technical solution of this utility model, the woven filter is a hollow cylindrical structure made of multiple stainless steel flat or round wires woven together.

[0008] As a preferred technical solution of this utility model, a backflush pipe is installed inside the woven filter basket. One end of the backflush pipe is placed inside the woven filter basket, and the other end of the backflush pipe penetrates through the top cover. The penetration is sealed by welding. A control valve is installed on the backflush pipe through the outer side of the top cover.

[0009] As a preferred technical solution of this utility model, a drain port is provided at the center of the bottom of the shell, and a drain valve is installed at the drain port.

[0010] As a preferred embodiment of this utility model, the stretching power assembly includes a hydraulic cylinder, the cylinder body of which is fixed to the bottom of the housing, the output end of which penetrates through the bottom of the housing, and the connecting flanges of the end and bottom of the woven filter are fixedly connected.

[0011] As a preferred technical solution of this utility model, the penetration between the cylinder output end and the housing adopts a dynamic sealing structure.

[0012] In a preferred embodiment of this invention, the shell and the top cover are fastened together by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model uses a combination of "cylinder-driven mechanical stretching + reverse flushing" to first loosen and crack the slab layer by expanding the gap between the filter wires, and then combines reverse water flow to remove impurities. This fundamentally solves the core defects of traditional equipment such as "insufficient backwash force and difficulty in removing the slab layer", ensuring that there are no impurities left on the surface of the filter element and ensuring long-term stable filtration efficiency.

[0015] (2) Thorough removal of caking impurities can prevent filter wire gap blockage and keep the equipment operating pressure drop stable for a long time. It effectively solves the problem of continuous increase in operating resistance caused by the thickening of the caking layer in traditional equipment. It can reduce the load of fluid transport pump group and reduce energy loss. It is especially suitable for industrial circulating water, water supply and drainage and other scenarios that operate continuously for a long time.

[0016] (3) The filtration accuracy of the woven filter can be flexibly adjusted by the compression degree of the filter wire gap by the oil cylinder, which can adapt to the impurity characteristics of different fluids; and the stainless steel material is resistant to acid and alkali and impact, and can be stably applied to complex fluid working conditions such as those containing sticky particles and high impurity concentrations, making it more widely applicable than traditional mesh filter cartridges; the woven filter is made of stainless steel flat wire or round wire cross-woven, which has high strength, corrosion resistance and wear resistance, and its durability is significantly improved compared to traditional mesh filter cartridges.

[0017] (4) The top cover and the housing are fastened together by bolts. The filter structure consists of multiple filters connected in series by connecting flanges. When the woven filter needs to be repaired, replaced or deeply cleaned, only the connecting bolts between the top cover and the housing need to be removed, and the entire filter structure can be taken out from the housing. Disassembly is simple and quick, which improves maintenance efficiency compared with the traditional integrated filter cartridge structure. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a cross-sectional structural diagram of the shell and top cover in this utility model;

[0020] Figure 2 This is a schematic diagram of the woven filter screen in this utility model;

[0021] In the diagram: 1. Shell; 2. Top cover; 3. Inlet; 4. Outlet; 5. Connecting cylinder; 6. Connecting flange; 7. Braided filter basket; 8. Bottom cover; 9. Backflush pipe; 10. Control valve; 11. Drain outlet; 12. Drain valve; 13. Hydraulic cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-2 The present invention provides the following technical solution: a quick-flushing decontamination device that is easy to disassemble, comprising a housing 1 and a top cover 2. A water inlet 3 is provided on one side of the housing 1, and a water outlet 4 is provided at the center of the top of the top cover 2. A connecting cylinder 5 is integrally connected to the bottom of the top cover 2 at the bottom of the water outlet 4. A filter structure is provided at the bottom of the connecting cylinder 5. The filter structure includes multiple filters. Each filter includes a connecting flange 6 and a braided filter 7. The connecting flange 6 is fixed at the upper and lower ports of the braided filter 7. The multiple braided filter 7 are collinear and fixedly connected by the connecting flange 6. The connecting flange 6 at the top of the top braided filter 7 is connected to the bottom of the connecting cylinder 5. A bottom cover 8 is integrally fixed at the center of the connecting flange 6 at the bottom of the bottom braided filter 7, and a tensioning power component is provided at the bottom.

[0025] To ensure that the woven filter 7 has sufficient structural strength to withstand axial tension and compression operations, while also possessing good corrosion resistance and durability, and that its woven structure allows for flexible adjustment of the filter wire gap to meet the dual requirements of filtration accuracy and loosening of the slab layer, in this embodiment, as a preferred technical solution of the present invention, the woven filter 7 is a hollow cylindrical structure made of multiple stainless steel flat or round wires woven together.

[0026] In order to accurately deliver clean backwash fluid into the braided filter 7 in backwash mode, and to ensure the sealing of the connection between the backwash pipe 9 and the top cover 2 through welding to prevent fluid leakage, and to achieve precise start and stop of the backwash process and flow control with the help of the control valve 10 to ensure backwash efficiency, in this embodiment, as a preferred technical solution of the present invention, a backwash pipe 9 is installed inside the braided filter 7. One end of the backwash pipe 9 is placed inside the braided filter 7, and the other end of the backwash pipe 9 penetrates the top cover 2, and the penetration is sealed by welding. A control valve 10 is installed on the outer side of the backwash pipe 9 penetrating the top cover 2.

[0027] In order to promptly discharge the impurities and wastewater stripped from the surface of the woven filter 7 during the backwashing process, and to prevent impurities from accumulating at the bottom of the housing 1 and causing secondary pollution or affecting the operation of the equipment, and to effectively control the timing and amount of sewage discharge through the drain valve 12, thus ensuring the controllability and cleanliness of the sewage discharge process, in this embodiment, as a preferred technical solution of the present invention, a drain port 11 is provided at the center of the bottom of the housing 1, and a drain valve 12 is installed at the drain port 11.

[0028] In order to provide a stable and controllable axial driving force for the filter structure, so as to accurately realize the stretching action (for loosening the plated layer) and compression action (for restoring the filter gap) of the braided filter 7, and ensure the smooth switching between the filtration mode and the backwashing mode to meet the core working conditions of the equipment, in this embodiment, as a preferred technical solution of the present invention, the stretching power component includes a hydraulic cylinder 13. The cylinder body of the hydraulic cylinder 13 is fixed to the bottom of the housing 1, the output end of the hydraulic cylinder 13 passes through the bottom of the housing 1, and the connecting flange 6 of the braided filter 7 at the end and the bottom is fixedly connected.

[0029] In order to prevent the fluid to be processed or the backflow fluid inside the housing 1 from leaking through the gap between the output end of the cylinder 13 and the housing 1, to ensure the sealing of the equipment during operation, to avoid pressure loss, fluid waste or environmental pollution caused by leakage, and to maintain stable internal pressure of the equipment, in this embodiment, as a preferred technical solution of the present invention, the gap between the output end of the cylinder 13 and the housing 1 adopts a dynamic sealing structure.

[0030] In order to facilitate the quick disassembly of the top cover 2 by staff, and to perform maintenance operations such as inspection, replacement and cleaning of the filter structure (such as the braided filter 7 and the backwash pipe 9) inside the housing 1, thereby reducing maintenance difficulty, improving maintenance efficiency and reducing equipment downtime, in this embodiment, as a preferred technical solution of the present invention, the housing 1 and the top cover 2 are fastened together by bolts.

[0031] In summary, with the help of the above-mentioned technical solution of this utility model, the specific working process is divided into normal filtration mode and backwashing descaling mode. The component actions, fluid paths and functions in each mode are as follows:

[0032] I. Normal Filtering Mode

[0033] When the equipment enters normal filtration operation, the output end is first extended by the tensioning power component (cylinder 13). Since the output end of the cylinder 13 is fixedly connected to the connecting flange 6 of the bottom braided filter 7, when the output end extends, it will push the entire filtration structure (composed of multiple filters connected in series through the connecting flange 6) upwards, so that the adjacent braided filter 7 are tightly compressed through the connecting flanges 6 at the upper and lower ends, thereby compressing the filter wire gap of the braided filter 7 (stainless steel flat wire or round wire cross braided structure) to the preset filtration accuracy range.

[0034] The fluid to be treated enters the internal cavity of the equipment through the inlet 3 on one side of the shell 1. Because the bottom of the braided filter 7 is covered with a bottom cap 8, the fluid cannot be directly conducted from the bottom of the filter structure and can only be forced to pass through the gaps between the filter fibers of the braided filter 7. During this process, impurities such as particles and flocculents in the fluid are trapped on the outer surface of the braided filter 7, while clean fluid that meets the filtration accuracy enters the hollow cavity of the braided filter 7. Then, it is conducted upward along the connecting cylinder 5 (fixed to the connecting flange 6 of the top braided filter 7) and finally discharged from the outlet 4 at the center of the top of the top cover 2, completing the filtration process.

[0035] Meanwhile, the connection between the output end of the hydraulic cylinder 13 and the housing 1 adopts a dynamic sealing structure, the connection between the backflushing pipe 9 and the top cover 2 adopts a welded seal, and the top cover 2 and the housing 1 are fastened together by bolts. The above sealing design together ensures the sealing of the equipment inside during normal filtration, avoiding efficiency loss or abnormal operating conditions caused by fluid leakage.

[0036] II. Backwashing Descaling Mode

[0037] When the pressure difference between the inlet and outlet of the equipment reaches the set threshold (or is triggered according to a preset cycle), it indicates that a layer of caking impurities has formed on the outer surface of the braided filter 7. At this time, the backwashing and descaling mode is started. The specific process is as follows:

[0038] Mechanical stretching to loosen the agglomerated layer: The control cylinder 13 retracts its output end, pulling down the connecting flange 6 of the bottom braided filter 7, causing the entire filter structure to stretch axially. Since multiple braided filter 7s are connected in series via the connecting flange 6, the tensile force is transmitted to each braided filter 7, causing relative displacement of the internal stainless steel flat or round wires due to the axial tension, significantly expanding the gaps between the originally compressed filter wires. During this process, the dense agglomerated layer on the outer surface of the braided filter 7 will crack and loosen due to the expansion of the filter wire gaps, disrupting the stability of the agglomerated structure.

[0039] Backwashing removes impurities: Open the control valve 10 of the backwash pipe 9. Clean fluid (taken from the clean fluid at the equipment outlet or from an external water source) is injected into the hollow cavity of the braided filter 7 through the water outlet of the backwash pipe 9, and then flows outward through the gap of the filter wire in the reverse direction. The loosened hardened impurities are completely peeled off from the outer surface of the braided filter 7 under the flushing action of the reverse water flow and fall to the bottom of the shell 1.

[0040] Sewage discharge and cleaning reset: Open the sewage discharge valve 12 at the sewage discharge port 11 at the bottom of the housing 1, and the sewage containing impurities will be discharged along the sewage discharge port 11; after the sewage discharge is completed, the output end of the control cylinder 13 will extend again, so that the filter wire gap of the braided filter 7 will return to the filtration state, and the control valve 10 and the sewage discharge valve 12 will be closed, and the equipment will return to the normal filtration mode.

[0041] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick flush type decontamination device which is easy to disassemble, comprising a housing (1) and a top cover (2), characterized in that: The housing (1) has an inlet (3) on one side and an outlet (4) at the center of the top of the top cover (2). The top cover (2) is integrally connected to the bottom of the outlet (4) with a connecting cylinder (5). The bottom of the connecting cylinder (5) is provided with a filter structure, which includes multiple filters. Each filter includes a connecting flange (6) and a braided filter basket (7). The connecting flange (6) is fixed to the upper and lower ports of the braided filter basket (7). Multiple braided filter baskets (7) are collinear and fixedly connected by the connecting flange (6). The connecting flange (6) at the top of the braided filter basket (7) is connected to the bottom of the connecting cylinder (5). The center of the connecting flange (6) at the bottom of the braided filter basket (7) is integrally fixed with a bottom cover (8), and a tensioning power component is provided at the bottom.

2. The quick-flush cleaning device for easy disassembly according to claim 1, characterized in that: The woven filter (7) is a hollow cylindrical structure made of multiple stainless steel flat or round wires woven together.

3. A quick-flush defouling device according to claim 1, wherein: The braided filter (7) is provided with a backflush pipe (9). One end of the backflush pipe (9) is placed inside the braided filter (7), and the other end of the backflush pipe (9) passes through the top cover (2). The passage is sealed by welding. A control valve (10) is installed on the outside of the backflush pipe (9) passing through the top cover (2).

4. The quick-flush cleaning device for easy disassembly according to claim 1, characterized in that: The housing (1) has a drain port (11) at the center of the bottom, and a drain valve (12) is installed at the drain port (11).

5. The quick-flush cleaning device for easy disassembly according to claim 1, characterized in that: The stretching power assembly includes a hydraulic cylinder (13), the cylinder body of which is fixed to the bottom of the housing (1), the output end of which passes through the bottom of the housing (1), and the connecting flange (6) of the braided filter (7) at the end and the bottom is fixedly connected.

6. The quick-flush cleaning device for easy disassembly according to claim 5, characterized in that: The connection between the output end of the hydraulic cylinder (13) and the housing (1) adopts a dynamic sealing structure.

7. The quick-flush cleaning device for easy disassembly according to claim 1, characterized in that: The housing (1) and the top cover (2) are fastened together by bolts.

Images