Filtering system for liquid storage tank

Abstract

The utility model provides a filtering system for a liquid storage tank, which comprises a filtering assembly communicated with a liquid outlet of a cleaning chamber through a pipeline, the filtering assembly comprises a liquid return filtering tank, a liquid inlet of the liquid return filtering tank is communicated with the liquid outlet of the cleaning chamber through a liquid discharge pipe, a one-way valve is arranged on the liquid discharge pipe, and a liquid outlet of the liquid return filtering tank is communicated with the liquid outlet of the cleaning chamber. A filtering basket is detachably arranged in the returned liquid filtering tank, the end, close to the liquid inlet, of the upper portion of the filtering basket is lower than the end, away from the liquid inlet, of the upper portion of the filtering basket, and the lowest end of the filtering basket is located below the liquid inlet, so that a certain gradient is conveniently formed, impurities in cleaning liquid entering the liquid inlet are blocked and then slide down, and the cleaning effect is improved. According to the filter device, impurities in the cleaning liquid after cleaning can be efficiently filtered through the effect of the detachably arranged filter basket, and when the filter device is blocked, the filter device can be conveniently and rapidly detached to be cleaned or replaced.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology for cleaning equipment, and specifically to a filtration system for a liquid storage tank. Background Technology

[0002] Many workpieces now require a certain level of cleanliness, and the challenges of cleaning different workpieces vary. Among these challenges, the filtration and recycling of cleaning solutions is a crucial issue. Currently, most cleaning equipment uses filter screens installed inside pipes to filter and block impurities in the cleaning solution.

[0003] However, when cleaning workpieces with a lot of impurities, the impurities can easily clog the filter screen, causing a series of problems such as poor drainage of cleaning fluid and blockage of pipes. In severe cases, it can even paralyze the entire equipment. Utility Model Content

[0004] In view of this, the present invention provides a filtration system for a liquid storage tank, which can achieve centralized and efficient filtration and discharge of impurities washed off through the filtration components, and can quickly disassemble and clean the filtration components when they are clogged, thus avoiding pipe blockage and greatly improving the operating efficiency of the equipment.

[0005] To solve the above-mentioned technical problems, this utility model provides a filtration system for a liquid storage tank, including a filtration assembly connected to the drain port of a cleaning chamber via a pipe. The filtration assembly includes a return liquid filtration tank, and the inlet of the return liquid filtration tank is connected to the drain port of the cleaning chamber via a drain pipe. A one-way valve is installed on the drain pipe. A filter basket is detachably installed inside the return liquid filtration tank. The upper part of the filter basket, near the inlet, is lower than the part away from the inlet, and the lowest point is located below the inlet. This is to facilitate the formation of a certain slope and to allow impurities in the cleaning liquid entering through the inlet to be blocked and slide down, preventing them from remaining on the upper part of the filter basket. This utility model can achieve efficient filtration of impurities in the cleaning liquid after cleaning through the detachable filter basket, and it is easy to disassemble, clean, or replace it when it is clogged.

[0006] The return liquid filter tank has an open structure, and a detachable sealing cover is installed on the upper part of the return liquid filter tank. The sealing cover is fastened to the upper part of the return liquid filter tank, and the sealing cover and the return liquid filter tank are fastened together by a buckle.

[0007] A sampling tube connected to the return liquid filter tank is installed, and a switch valve is installed on the sampling tube.

[0008] The return liquid filter tank is also equipped with a drain pipe connected to it, and a drain valve is installed on the drain pipe. The drain valve is a solenoid valve.

[0009] A retaining ring is installed on the inner wall of the return liquid filter tank. The retaining ring is made of sealing rubber and is inclined inside the return liquid filter tank. A flange is installed on the upper outer wall of the filter basket. The flange is matched with the retaining ring to limit the installation of the filter basket.

[0010] The filter basket is also hinged to a handle at the top.

[0011] The return liquid filter tank is also equipped with a backwash pump connected to it. The outlet of the backwash pump is connected to the return liquid filter tank through a pressurization pipe, such as a venturi tube. A shower head is installed at the opening of the venturi tube, and the shower head faces the filter basket.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. This utility model can replace the traditional simple filtration method of simply setting a filter screen inside the return liquid pipe by setting a filter basket inside the return liquid filtration tank, which greatly improves the filtration effect and reduces the frequency of clogging. Moreover, the detachable filter basket makes it easy to disassemble and clean when it is clogged, making the operation more convenient and efficient.

[0014] 2. This utility model achieves automatic flushing and sliding of impurities in the filtered cleaning solution by tilting the upper part of the filter basket, which greatly reduces the frequency of filter basket clogging and achieves more efficient filtration of impurities in the cleaning solution.

[0015] 3. This utility model can achieve efficient backwashing of impurities in the cleaning liquid that clog the filter basket inside the return liquid filter tank by using a backwash pump, thereby preventing clogging of the filter basket and greatly improving the service life and self-cleaning effect of the filter basket.

[0016] 4. This utility model can achieve convenient and rapid real-time sampling and testing of the cleaning liquid in the unique return liquid filter tank by setting a sampling valve on the return liquid filter tank, making the operation more convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the filtration system and cleaning chamber for the liquid storage tank of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the filtration system for the liquid storage tank of this utility model;

[0019] Figure 3 This utility model Figure 2 Sectional view at point AA.

[0020] Explanation of reference numerals in the attached drawings: 100, cleaning chamber; 200, filter assembly; 210, return filter tank; 211, inlet; 212, sampling tube; 213, drain pipe; 220, filter basket; 221, handle; 230, sealing cover; 300, retaining ring; 400, flange. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-3 As shown: This embodiment provides a filtration system for a liquid storage tank, including a filter assembly 200 connected to the drain port of a cleaning chamber 100 via a pipe. The filter assembly 200 includes a return liquid filter tank 210, and the inlet 211 of the return liquid filter tank 210 is connected to the drain port of the cleaning chamber 100 via a drain pipe. A one-way valve is installed on the drain pipe to control the flow of cleaning fluid from the cleaning chamber 100 into the return liquid filter tank 210. A filter basket 220 is detachably installed inside the return liquid filter tank 210 for easy disassembly. The upper part of the filter basket 220, near the liquid inlet 211, is lower than the lower part away from the liquid inlet 211, and the lowest point is located below the liquid inlet 211. This is to facilitate the formation of a certain slope, and to allow impurities in the cleaning fluid entering through the liquid inlet 211 to be blocked and slide down, preventing them from remaining in the upper part of the filter basket 220. This utility model can achieve efficient filtration of impurities in the cleaning fluid after cleaning through the detachable filter basket 220. Moreover, when it is clogged, it is easy to disassemble, clean, or replace it quickly and easily.

[0023] According to one embodiment of the present invention, such as Figure 1-2 As shown, the return liquid filter tank 210 has an open structure, and a sealing cover 230 is detachably installed on the upper part of the return liquid filter tank 210. The sealing cover 230 is fastened to the upper part of the return liquid filter tank 210. A buckle is provided on the upper part of the return liquid filter tank 210, and the sealing cover 230 and the return liquid filter tank 210 are fastened together by the buckle. Figure 1As shown, the sealing cover 230 is provided with wing bolts that are compatible with the buckle. The buckle and the wing bolts are arranged in pairs, with four buckles and four wing bolts in total, and they are evenly distributed around the outer wall of the return liquid filter tank 210. This utility model can achieve the sealing operation of the return liquid filter tank 210 through the sealing cover 230. Furthermore, the detachable sealing cover 230 can be easily and quickly opened to remove the filter basket 220 inside, allowing for efficient cleaning of the filtered impurities and replacement of the filter basket 220, making the operation more convenient.

[0024] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, a sampling tube 212 is provided on the return liquid filter tank 210 and connected thereto. The sampling tube 212 is equipped with a switch valve, which is a manual ball valve. This utility model can use the sampling tube 212 to sample the filtered cleaning liquid in the return liquid filter tank 210, which makes it easier to monitor the filtration performance of the filter basket 220 in the return liquid filter tank 210 in real time, making the operation more convenient and efficient.

[0025] The return liquid filter tank 210 is also equipped with a drain pipe 213 connected to it. The drain pipe 213 is equipped with a drain valve, which is a solenoid valve. This utility model can achieve the discharge of impurities filtered out in the return liquid filter tank 210 by opening the drain valve.

[0026] A retaining ring 300 is provided on the inner wall of the return liquid filter tank 210. The retaining ring 300 is made of sealing rubber and is inclinedly set inside the return liquid filter tank 210. A flange 400 is provided on the upper outer wall of the filter basket 220. The flange 400 and the retaining ring 300 are matched to limit the installation of the filter basket 220. This utility model can limit the position of the filter basket 220 by blocking the flange 400 with the retaining ring 300, making operation more convenient.

[0027] Another way to detach the filter basket 220 is to have a retaining strip on the side wall of the filter basket 220 and a retaining groove on the inner side wall of the return liquid filter tank 210 that matches the retaining strip. The retaining strip on the outside of the filter basket 220 can be inserted into the retaining groove to achieve the function of quick and efficient detachment of the filter basket 220 and the return liquid filter tank 210.

[0028] According to another embodiment of the present invention, such as Figure 3As shown, a handle 221 is hinged to the upper part of the filter basket 220. The handle 221 and the filter basket 220 are hinged together by a hinge shaft. This utility model allows the operator to grasp the handle 221 and lift the filter basket 220 upward to remove it from the return liquid filter tank 210, which facilitates convenient and efficient removal and cleaning operations, making the operation more convenient and efficient.

[0029] The return liquid filter tank 210 is also equipped with a backwash pump connected to it. The inlet 211 of the backwash pump is connected to the outlet of the high-pressure water storage tank through a pipe. The outlet of the backwash pump is connected to the return liquid filter tank 210 through a pressurization pipe, such as a venturi tube. A shower head is provided at the opening of the venturi tube, and the shower head faces the filter basket 220. This utility model can realize the backwashing operation of the impurities filtered out inside the return liquid filter tank 210 by starting the backwash pump, which greatly improves the filtration efficiency and service life of the filter basket 220 and makes the operation more convenient.

[0030] How to use this utility model:

[0031] First, it needs to be clarified that the filtration system involved in this utility model is mainly used to filter the cleaning fluid containing impurities after cleaning in a cleaning machine. This utility model takes the filtration of impurities in the cleaning fluid after cleaning aircraft parts in a hydrocarbon vacuum cleaner as an example to describe its usage in detail. After cleaning is completed, the one-way valve is opened. At this time, the cleaning agent in the cleaning chamber 100 will flow into the return liquid filter tank 210 through the pipe and the one-way valve. After passing through the filter basket 220 in the return liquid filter tank 210, the impurities will be blocked on the filter basket 220. The filtered cleaning fluid will be discharged through the drain port of the return liquid filter tank 210, while the impurities will be blocked and isolated in the filter basket. Inside 220, when the filter basket 220 becomes clogged, the backwash pump is activated to flush the clogged filter basket 220. When the filter basket 220 needs to be replaced, the operator opens the sealing cover 230, then holds the handle 221 to remove the filter basket 220 for cleaning or replacement. The operation is more convenient. This utility model can replace the traditional simple filtration method of simply setting a filter screen inside the return liquid pipe with a filter basket 220 set inside the return liquid filtration tank 210, which greatly improves the filtration effect and reduces the frequency of clogging. Moreover, the detachable filter basket 220 makes it easy to disassemble and clean when clogged, making the operation more convenient and efficient.

[0032] 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.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A filter system for a liquid storage tank, comprising a filter assembly (200) in communication with a drain outlet of a cleaning chamber (100), characterized in that: The filter assembly (200) comprises a liquid return filter tank (210), a liquid inlet (211) of the liquid return filter tank (210) is communicated with a liquid outlet of the cleaning chamber (100), an inside of the liquid return filter tank (210) is detachably provided with a filter basket (220), an upper portion of the filter basket (220) near an end close to the liquid inlet (211) is lower than an end far from the liquid inlet (211), and a lowest end is below the liquid inlet (211).

2. The filtration system for liquid reservoirs of claim 1, wherein: The liquid return filter tank (210) is of an open structure, and an upper portion of the liquid return filter tank (210) is detachably provided with a sealing cover (230).

3. The filtration system for liquid reservoirs of claim 2, wherein: A sampling pipe (212) communicated with the liquid return filter tank (210) is arranged on the liquid return filter tank (210).

4. The filtration system for liquid reservoirs of claim 3, wherein: A blowdown pipe (213) communicated with the liquid return filter tank (210) is further arranged on the liquid return filter tank (210).

5. The filtration system for liquid reservoirs of claim 4, wherein: A retaining ring (300) is arranged on an inner side wall of the liquid return filter tank (210), a flange (400) is arranged on an outer side wall of an upper portion of the filter basket (220), and the flange (400) is matched with the retaining ring (300) to limit installation of the filter basket (220).

6. The filtration system for liquid reservoirs of claim 5, wherein: A handle (221) is further arranged on the upper portion of the filter basket (220).

7. The filtration system for liquid reservoirs of claim 1, wherein: A backwashing pump communicated with the liquid return filter tank (210) is further arranged on the liquid return filter tank (210).

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