Pipeline filter
By designing a pipeline filter that automatically discharges sewage and adjusts the sealing state using fluid pressure, the problems of complex structure and clogged filter elements in the prior art are solved, and the effect of automatic discharge of sewage and extending the life of the filter elements is achieved.
Patent Information
- Application Number
- CN202422533729.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-18
AI Technical Summary
The existing pipeline filter has complex structures, blocked filter element leads to reduced flow and risk of pipe bursting, and requires multiple valves and bypass pipes, making it difficult to achieve automatic sewage discharge to extend the life of the filter element.
A pipe filter including front flange, rear flange and slider is designed. The filter element is fixed on the slider, and automatic sewage discharge is achieved through pre-tightening springs and sewage discharge connectors. The sealing state between the sleeve and the front flange is adjusted by fluid pressure to automatically eliminate scale accumulation and pressure relief.
It simplifies the structure, extends the service life of the filter element, reduces the risk of pipe explosion, and realizes the function of automatic sewage discharge.
Smart Images
Figure CN223221108U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of feed additive production equipment and relates to a pipeline filter. Background Art
[0002] In the process of feed additive production, pipelines involving liquid materials and pipelines for conveying gas are equipped with pipeline filters. The pipeline filter is used to filter the fluid in the pipeline. Its basic structure is a filter element structure connected in series in the pipeline, so that the fluid continues to circulate after passing through the filter element. Since the filter element needs to be replaced regularly, it is generally necessary to connect a bypass pipe in parallel between the front and rear ends of the pipeline filter. Under normal circumstances, the valve on the bypass pipe is closed to allow the fluid to pass through the filter element. When the filter element needs to be replaced, the bypass pipe is opened and the front and rear ends of the filter element are closed. Therefore, the current pipeline filter needs to be equipped with at least three valves and a bypass pipe. The structure is relatively complex. Moreover, as the filtration proceeds, the blockage of the filter element continues to worsen, which can easily cause a decrease in pipeline flow and an increase in pressure on related parts, and there is a risk of pipe bursting. Utility Model Content
[0003] The purpose of the utility model is to provide a pipeline filter in view of the above-mentioned problems existing in the existing technology. The technical problem to be solved by the utility model is how to realize automatic sewage discharge to extend the service life of the filter element.
[0004] The purpose of the utility model can be achieved through the following technical solutions: a pipeline filter, characterized in that it includes a front flange, a rear flange and a slide seat slidably connected to the rear flange, the pipe portion of the front flange is located inside the pipe portion of the rear flange, a filter element is fixedly provided on the slide seat, a pre-tightening spring is connected between the slide seat and the inner wall of the rear flange, the slide seat includes a sealing portion and a sleeve with a diameter smaller than the sealing portion, the outer wall of the sleeve and the inner wall of the pipe portion of the front flange can be sealed, and the rear flange is connected to a sewage discharge pipe located outside the sleeve.
[0005] Furthermore, the filter element is in a conical column shape, and the small diameter end of the filter element faces the front side of the pipeline flow path.
[0006] Furthermore, the front flange and the rear flange are threadedly connected.
[0007] In this solution, when the fluid pressure at the front end of the filter element is relatively high, the fluid pressure can drive the slide to compress the preload spring, thereby separating the sleeve from the pipe portion of the front flange, and the fluid at the front end of the filter element can be discharged from the drain pipe. At this time, it means that the filter element is seriously clogged, or the fluid pressure at the front end of the pipeline increases suddenly. The drain pipe can be used to discharge the dirt accumulated in the front section of the filter element, and can also be used for small-scale pressure relief to buffer the sudden increase in fluid pressure in the pipeline. When the filter element has good filtration efficiency, that is, in normal working state, the outer wall of the sleeve and the inner wall of the pipe portion of the front flange are sealed, and the drain pipe is isolated and not connected to the fluid in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of this pipeline filter.
[0009] In the figure, 1, front flange; 2, rear flange; 3, slide seat; 31, sealing part; 32, sleeve; 4, filter element; 5, preload spring; 6, sewage pipe. DETAILED DESCRIPTION
[0010] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0011] like Figure 1 The pipe filter shown includes a front flange 1, a rear flange 2 and a slide 3 slidably connected to the rear flange 2. The pipe portion of the front flange 1 is located within the pipe portion of the rear flange 2. A filter element 4 is fixedly provided on the slide 3. A preload spring 5 is connected between the slide 3 and the inner wall of the rear flange 2. The slide 3 includes a sealing portion 31 and a sleeve 32 with a diameter smaller than the sealing portion 31. The outer wall of the sleeve 32 can be sealed with the inner wall of the pipe portion of the front flange 1. The rear flange 2 is connected to a sewage discharge pipe 6 located outside the sleeve 32.
[0012] The filter element 4 is conical, with the smaller end of the filter element 4 facing the front of the pipe flow path. The front flange 1 and the rear flange 2 are threaded together, allowing the preload force of the preload spring 5 to be adjusted, thereby adjusting the discharge pressure differential to suit the actual needs of the fluid filtration in the pipe.
[0013] In this solution, when the fluid pressure at the front end of the filter element 4 is relatively large, the fluid pressure can drive the slide 3 to compress the preload spring 5, thereby causing the sleeve 32 to separate from the pipe portion of the front flange 1, and the fluid at the front end of the filter element 4 can be discharged from the drain pipe 6. At this time, it means that the filter element 4 is seriously blocked, or the fluid pressure at the front end of the pipeline increases suddenly. The drain pipe 6 can discharge the dirt accumulated in the front section of the filter element 4, and can also be used for a small pressure relief to buffer the sudden increase in fluid pressure in the pipeline. When the filtration efficiency of the filter element 4 is good, that is, in normal working state, the outer wall of the sleeve 32 is sealed with the inner wall of the pipe portion of the front flange 1, and the drain pipe 6 is isolated and not connected to the fluid in the pipeline.
[0014] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.
Claims
1. A pipeline filter, characterized in that: The invention comprises a front flange (1), a rear flange (2) and a slide seat (3) slidably connected in the rear flange (2); the pipe portion of the front flange (1) is located in the pipe portion of the rear flange (2); a filter element (4) is fixedly provided on the slide seat (3); a preload spring (5) is connected between the slide seat (3) and the inner wall of the rear flange (2); the slide seat (3) comprises a sealing portion (31) and a sleeve (32) having a diameter smaller than that of the sealing portion (31); the outer wall of the sleeve (32) and the inner wall of the pipe portion of the front flange (1) can be sealed; and the rear flange (2) is connected to a sewage discharge pipe (6) located outside the sleeve (32).
2. A pipeline filter according to claim 1, characterized in that: The filter element (4) is in a conical column shape, and the small-diameter end of the filter element (4) faces the front side of the pipeline flow path.
3. A pipeline filter according to claim 1 or 2, characterized in that: The front flange (1) and the rear flange (2) are threadedly connected.