Novel chemical filter

Abstract

The utility model discloses a novel chemical filter which comprises a filter body, a filter cup is arranged at the joint of an inner cavity of the filter body and a liquid inlet pipe, a plurality of sliding rods are arranged on one side of the filter cup in an annular array mode, and sliding grooves matched with the sliding rods are formed in the inner cavity of the liquid inlet pipe. The curved bar is fixedly connected with the sliding rod through a communicating cavity of the sliding barrel and the liquid inlet pipe, and a spring is arranged in an inner cavity of the sliding barrel. The utility model relates to the technical field of chemical filters, the filter is characterized in that a filter cup is arranged at the joint of a liquid inlet pipe and the filter, fluid with impurities pushes the filter cup to move, a gap for the fluid and the impurities to flow is formed between the liquid inlet pipe and the filter cup, and a spring drives the filter cup to be in contact with the liquid inlet pipe through self deformation and is closed; according to the filter, fluid can enter the liquid inlet pipe through the holes in the filter cup, impurities are reserved in the filter and collected through the filter basket, backflow of the impurities is effectively prevented through the design of the filter cup, and accumulation of the impurities in an upstream pipeline is reduced.

Description

A new type of chemical filter Technical Field

[0001] This utility model relates to the technical field of chemical filters, specifically a novel chemical filter. Background Technology

[0002] The working principle of chemical filters mainly involves filtering solid impurities from fluids using filter elements or baskets, protecting downstream equipment from blockage or wear, and ensuring the normal operation of pipeline systems. Basket filters are commonly used in the chemical industry and mainly consist of connecting pipes, a cylinder, a filter basket, flanges, flange covers, and fasteners. When liquid enters the filter basket through the cylinder, solid impurity particles are trapped inside the basket, while clean fluid passes through the basket and exits from the filter outlet. When cleaning is required, simply unscrew the bottom plug of the main pipe to drain the fluid, remove the flange cover for cleaning, and then reinstall it. When chemical equipment stops operating, the fluid in the pipeline stops flowing and flows back. This backflowing fluid can easily carry some impurities from the filter basket into the upstream pipeline, increasing the difficulty of cleaning the upstream pipeline. Therefore, we provide a new type of chemical filter to solve the above problems. Summary of the Invention

[0003] To solve the above problems, that is, to address the issues raised in the background art, this utility model proposes a novel chemical filter, including a filter, wherein an inlet pipe and a outlet pipe are integrally provided on the side wall of the filter, the inlet pipe and the outlet pipe are correspondingly arranged, a filter basket is provided in the inner cavity of the filter, and a flange cover is attached to the top of the filter.

[0004] The filter has a filter cup located at the connection point with the inlet pipe. Several slide rods are arranged in a ring on one side of the filter cup. The inlet pipe has a groove in its inner cavity that matches the slide rods. A slide cylinder is connected to the outer wall of the inlet pipe through the groove. A curved rod is slidably installed in the inner cavity of the slide cylinder. The curved rod is fixedly connected to the slide rod through the connecting cavity of the slide cylinder and the inlet pipe. A spring is installed in the inner cavity of the slide cylinder, which can elastically press the curved rod against the wall.

[0005] Preferably, the end of the slide near the spring is threaded with an adjusting bolt for adjusting the spring's elastic coefficient.

[0006] Preferably, one of the slide cylinders has an observation window on its outer wall to facilitate observation of the extreme position of the spring pressing against the slide rod.

[0007] Preferably, the filter cup is cone-shaped to prevent impurities from accumulating on the side of the filter cup near the inlet pipe.

[0008] Preferably, the bottom of the side wall of the filter is bolted with a drain bolt, and the inner cavity of the filter is fixedly provided with several protrusions corresponding to the position where the filter basket is placed.

[0009] Preferably, the end of the drain pipe that connects to the filter extends into the filter until it contacts the filter basket.

[0010] The beneficial technical effects of this utility model are as follows: By setting a filter cup at the connection between the inlet pipe and the filter, the fluid containing impurities can be pushed to move by the elastic action of the spring, so that a gap is formed between the inlet pipe and the filter cup for the flow of fluid and impurities. When the chemical equipment stops working and the fluid inside the filter flows back, the spring uses its own deformation to drive the filter cup to contact and close the inlet pipe, so that the fluid can enter the inlet pipe through the holes inside the filter cup, while the impurities can remain inside the filter and be collected by the filter basket. The design of the filter cup effectively prevents the backflow of impurities, thereby reducing the accumulation of impurities in the upstream pipeline. Attached Figure Description

[0011] Figure 1 shows a cross-sectional view of the present invention.

[0012] Figure 2 shows an enlarged view of the structure at point A in Figure 1 of this utility model.

[0013] Attached figures: 1. Filter; 11. Inlet pipe; 111. Slide chute; 12. Drain pipe; 13. Flange cover; 14. Filter basket; 15. Protrusion; 16. Drain bolt; 2. Filter cup; 21. Slide rod; 3. Slide cylinder; 31. Crank rod; 32. Spring; 33. Adjusting bolt; 34. Observation window. Detailed Implementation

[0014] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0015] This utility model proposes a novel chemical filter, comprising a filter 1. An inlet pipe 11 and an outlet pipe 12 are integrally formed on the side wall of the filter 1, with the inlet pipe 11 and outlet pipe 12 correspondingly arranged. A filter basket 14 is provided inside the filter 1, serving as the core component of the filter 1. The filter basket 14 typically houses filter cloth or filter cotton, ensuring the cleanliness of the fluid. A flange cover 13 is attached to the top of the filter 1. A filter cup 2 is provided at the connection point between the filter 1 and the inlet pipe 11 within the inner cavity of the filter 1. The filter cup 2 is conical to prevent impurities from accumulating on the side of the filter cup 2 closest to the inlet pipe 11. The filter cup 2 is arranged in a circular array on one side. There are several sliding rods 21. The inner cavity of the liquid inlet pipe 11 is provided with a sliding groove 111 that is adapted to the sliding rod 21. The outer wall of the liquid inlet pipe 11 is connected to the sliding groove 111 and a sliding cylinder 3 is provided. A curved rod 31 is slidably provided in the inner cavity of the sliding cylinder 3. The curved rod 31 is fixedly connected to the sliding rod 21 through the connecting cavity of the sliding cylinder 3 and the liquid inlet pipe 11. A spring 32 is provided in the inner cavity of the sliding cylinder 3. The spring 32 can elastically press the curved rod 31. An adjusting bolt 33 is threadedly connected to the end of the sliding cylinder 3 near the spring 32 to adjust the elastic coefficient of the spring 32. An observation window 34 is provided on the outer wall of one of the sliding cylinders 3 to observe the extreme position of the spring 32 pressing against the sliding rod 21.

[0016] Specifically, the bottom of the side wall of the filter 1 is bolted with a drain bolt 16, and several protrusions 15 are fixedly provided in the inner cavity of the filter 1 corresponding to the position where the filter basket 14 is placed. This design allows the fluid inside the filter basket 14 to flow out through the side wall of the filter basket 14, which increases the drainage speed after loosening the drain bolt 16. The connection end of the drain pipe 12 with the filter 1 extends into the filter 1 until it contacts the filter basket 14. This design prevents impurities from entering the interior of the drain pipe 12.

[0017] Working principle: When using filter 1, connect the inlet pipe 11 to the upstream pipe of the chemical equipment and the outlet pipe 12 to the downstream pipe of the chemical equipment. Then start the chemical equipment, so that the impurities containing the fluid enter the filter 1 through the inlet pipe 11. Under the elastic action of the spring 32, the fluid containing impurities can push the filter cup 2 to move, so that a gap is formed between the inlet pipe 11 and the filter cup 2 for the flow of fluid and impurities. After filtration by the filter basket 14 and the internal filter cloth, the impurities are retained inside the filter basket 14 and the filter cloth, while the fluid can enter the outlet pipe 12 through the filter basket 14 and the filter cloth, thus realizing the filtration of impurities inside the fluid. When the chemical equipment stops working and the fluid inside filter 1 flows back, spring 32 uses its own deformation to drive filter cup 2 to contact and seal with inlet pipe 11, allowing fluid to enter inlet pipe 11 through the holes inside filter cup 2, while impurities can remain inside filter 1 and be collected through filter basket 14 and filter cloth. When the elastic coefficient of spring 32 is insufficient to support slide rod 21 and filter cup 2 after long-term use of filter 1, spring 32 can be compressed by tightening adjusting bolt 33, thereby ensuring the position of filter cup 2 after reset and avoiding backflow gap between filter cup 2 and inlet pipe 11.

[0018] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0019] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0022] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A novel chemical filter, characterized in that: The filter includes a filter (1), on which an inlet pipe (11) and a drain pipe (12) are integrally provided on the side wall. The inlet pipe (11) and the drain pipe (12) are arranged correspondingly. A filter basket (14) is provided in the inner cavity of the filter (1), and a flange cover (13) is attached to the top of the filter (1). A filter cup (2) is provided in the inner cavity of the filter (1) at the connection with the inlet pipe (11). Several slide rods (21) are arranged in a ring on one side of the filter cup (2). The inner cavity of the liquid inlet pipe (11) is provided with a sliding groove (111) that is adapted to the sliding rod (21). The outer wall of the liquid inlet pipe (11) is connected to the sliding groove (111) with a sliding cylinder (3). A curved rod (31) is slidably provided in the inner cavity of the sliding cylinder (3). The curved rod (31) is fixedly connected to the sliding rod (21) through the connecting cavity of the sliding cylinder (3) and the liquid inlet pipe (11). A spring (32) is provided in the inner cavity of the sliding cylinder (3). The spring (32) can elastically press the curved rod (31) against the sliding cylinder (3).

2. The novel chemical filter according to claim 1, characterized in that: The slide (3) has an adjusting bolt (33) threadedly connected to one end near the spring (32) for adjusting the elastic coefficient of the spring (32).

3. A novel chemical filter according to claim 2, characterized in that: One of the slide cylinders (3) has an observation window (34) on its outer wall to observe the extreme position of the spring (32) pressing against the slide rod (21).

4. A novel chemical filter according to claim 1, characterized in that: The filter cup (2) is set in a conical shape to prevent impurities from accumulating on the side of the filter cup (2) near the inlet pipe (11).

5. A novel chemical filter according to claim 1, characterized in that: The bottom of the side wall of the filter (1) is bolted with a drain bolt (16), and the inner cavity of the filter (1) is fixedly provided with several protrusions (15) corresponding to the position where the filter basket (14) is placed.

6. A novel chemical filter according to claim 1, characterized in that: The connection end of the drain pipe (12) to the filter (1) extends into the filter (1) until it contacts the filter basket (14).

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