Double-cylinder filter capable of being switched on line

Abstract

The utility model relates to the technical field of filtering equipment, and discloses an online switchable double-cylinder filter which comprises a filter outer frame, an inlet is formed in one end of the filter outer frame, an outlet is formed in the other end, away from the inlet, of the filter outer frame, a first electromagnetic valve is arranged on the inner surface of the filter outer frame, and a second electromagnetic valve is arranged on the inner surface of the filter outer frame. A connecting frame is fixedly installed on the outer surface of the filter outer frame, a clamping groove is formed in the other end, away from the filter outer frame, of the connecting frame, and a filtering assembly is installed on the connecting frame through the clamping groove in an inserted mode. According to the double-cylinder filter capable of being switched on line, due to the design of the double filter cylinders and the double filter screens, the filter area is increased, the filter precision and efficiency are improved, meanwhile, the continuity of filter work is guaranteed, the downtime is shortened, a first clamping frame of the first filter cylinder and a second clamping frame of the second filter cylinder are matched with clamping grooves of a connecting frame, the installation process of a filter assembly is simple and convenient, and the installation efficiency is improved. And the stability is high after installation, shaking or displacement in the filtering process is prevented, and the filtering effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically to a dual-cylinder filter that can be switched online. Background Technology

[0002] Large generator sets, blower units, and rolling mills are large-scale technical equipment used in the power generation, oil processing, coal production, and steel production industries. Without exception, these large units employ centralized lubrication systems. The function of the lubrication system is to provide qualified lubricating oil to the operating and wear parts of the unit, achieving good lubrication and reducing wear and friction on relatively moving parts. This is of great significance for improving the unit's working efficiency, saving energy, reducing component damage and equipment failure, and extending equipment service life. Dual-cylinder filters are an important component of centralized lubrication systems. When a single-cylinder filter's filter element becomes clogged to a certain extent during operation and needs cleaning or replacement, the main unit must be stopped. This not only wastes time but also fails to meet the need for continuous operation of the main unit. Dual-cylinder filters effectively solve this deficiency of single-cylinder filters, allowing for cleaning or replacement of the filter element without stopping the main unit, ensuring normal and continuous operation.

[0003] Chinese Utility Model Patent Publication No. CN 219502206 U discloses a conveniently switchable dual-cylinder filter. This conveniently switchable dual-cylinder filter solves the problem of valve damage caused by impurity deposition when inputting oil in a dual-cylinder filter. After the oil enters the central shell, it first descends to the bottom, where larger particles are directly collected. Then, it is guided through the outer screw to the receiving box for collection. After the oil supply in the input pipe stops, the receiving box is unscrewed to allow the oil and impurities in the receiving box to be directly discharged. This reduces impurity deposition and prevents valve damage when the dual-cylinder filter is used. However, this conveniently switchable dual-cylinder filter is not easy to adapt to various connection methods and is not easy to connect to different pipelines, resulting in poor practicality. At the same time, the lack of a filter cylinder installation structure makes it difficult to quickly install the filter cylinder and prevents the filter cylinder from shaking or shifting during the filtration process, resulting in poor filtration effect. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an online switchable dual-cylinder filter, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a dual-cylinder filter that can be switched online, including a filter frame, an inlet at one end of the filter frame, an outlet at the other end of the filter frame away from the inlet, a solenoid valve on the inner surface of the filter frame, a connecting frame fixedly installed on the outer surface of the filter frame, a slot at the other end of the connecting frame away from the filter frame, and a filter component inserted into the connecting frame through the slot;

[0006] The filter assembly includes a first filter cylinder, a second filter cylinder, and a filter screen. A connecting pipe is provided between the first filter cylinder and the second filter cylinder, which communicates with the first filter cylinder and the second filter cylinder.

[0007] Preferably, a sealing gasket one is fixedly installed at one end of the inlet, and a sealing gasket two is fixedly installed at one end of the outlet, wherein the sealing gasket one and the sealing gasket two are rubber gaskets.

[0008] Through the above technical solution, both the sealing gasket one at the inlet end and the sealing gasket two at the outlet end are made of rubber gaskets. By utilizing the good elasticity and sealing properties of rubber, leakage of the filter medium at the inlet is effectively prevented, thereby improving the overall sealing performance of the filter.

[0009] Preferably, a flange one is fixedly installed at one end of the inlet, and a flange two is fixedly installed at one end of the outlet.

[0010] The above technical solution, with flange one at the inlet and flange two at the outlet, facilitates the connection of the filter to external pipelines. It can not only be fixedly connected by flanges, but also connected to pipelines by threads, realizing multiple connection methods and improving the overall practicality of the filter.

[0011] Preferably, the inlet and outlet are interconnected, the filter frame is interconnected with the filter assembly, and the solenoid valve is located between the inlet and outlet.

[0012] Through the above technical solution, the inlet and outlet are interconnected, the filter frame and the filter assembly are interconnected, and solenoid valve one is located between the two. When the filter is working, the medium to be filtered can smoothly flow into the filter assembly from the inlet, be filtered by the filter screen, and flow out from the outlet. Solenoid valve one can control the flow direction and on / off of the medium, making it convenient to switch the filtration state when needed, meeting the functional requirements of online switching, and greatly improving the flexibility of the filter in use.

[0013] Preferably, a retaining frame 1 is fixedly installed at one end of the filter cylinder 1 near the outer frame of the filter, and a retaining frame 2 is fixedly installed at one end of the filter cylinder 2 near the outer frame of the filter.

[0014] Through the above technical solution, the first retaining frame of filter cartridge one and the second retaining frame of filter cartridge two facilitate the installation of filter cartridge one and filter cartridge two in the connecting frame of the filter outer frame. The cooperation between the retaining frame and the retaining groove not only makes the installation process simple and convenient, but also ensures the stability of the filter assembly after installation, preventing shaking or displacement during the filtration process and affecting the filtration effect.

[0015] Preferably, the connecting pipe has a U-shaped cross-section, and a second solenoid valve is provided on the outer surface of the connecting pipe.

[0016] Through the above technical solution, the U-shaped connecting pipe enables the interconnection between filter cartridge one and filter cartridge two, ensuring that the medium can flow smoothly between the two filter cartridges. The solenoid valve two outside the connecting pipe can control the medium flow status between the two filter cartridges. When it is necessary to switch filter cartridges for online filtration, the switching of the two filter cartridges can be quickly realized by controlling the opening and closing of solenoid valve two, which improves the working efficiency and flexibility of the filter.

[0017] Preferably, two identical filter screens are provided, and filter screens are provided on the inner surfaces of both filter cylinder one and filter cylinder two.

[0018] With the above technical solution, both filter cartridges 1 and 2 are equipped with filter screens, which increases the filtration area and effectively improves the filtration accuracy and efficiency of the filter. When one filter cartridge is filtering, the other filter cartridge can be used as a backup or for cleaning and maintenance, realizing a dual-cartridge filtration function that can be switched online. This ensures the continuity of filtration work and reduces downtime caused by replacing filter screens or filter cartridges.

[0019] Compared with the prior art, this utility model provides a dual-cylinder filter that can be switched online, which has the following beneficial effects:

[0020] 1. This online switchable dual-cylinder filter, with inlet flange one and outlet flange two, supports fixed or threaded connection to external pipelines, adapts to multiple connection methods, facilitates connection with different pipelines, enhances practicality, and can realize online switching of filtration status through the control of solenoid valve one and solenoid valve two to meet different filtration needs, greatly improving the flexibility of filter use.

[0021] 2. This online switchable dual-cylinder filter features a dual-filter cylinder and dual-filter screen design, increasing the filtration area and improving filtration accuracy and efficiency. It also ensures continuous filtration operation and reduces downtime. The locking frames of filter cylinder one and filter cylinder two engage with the slots of the connecting frame, making the installation of the filter components simple and convenient. Furthermore, it ensures high stability after installation, preventing shaking or displacement during filtration and guaranteeing the filtration effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the filter component of this utility model;

[0026] Figure 5 This is a schematic diagram of the exploded structure of this utility model;

[0027] Figure 6 This is a cross-sectional structural diagram of the filter assembly of this utility model.

[0028] The components are as follows: 1. Filter outer frame; 2. Inlet; 3. Sealing gasket one; 4. Flange one; 5. Outlet; 6. Sealing gasket two; 7. Flange two; 8. Solenoid valve one; 9. Connecting frame; 10. Slot; 11. Filter assembly; 1101. Filter cartridge one; 1102. Slot one; 1103. Connecting pipe; 1104. Solenoid valve two; 1105. Filter cartridge two; 1106. Slot two; 1107. Filter screen. Detailed Implementation

[0029] 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.

[0030] Example 1: As Figure 1-6 As shown, the present invention provides an online switchable dual-cylinder filter, including a filter frame 1, an inlet 2 at one end of the filter frame 1, an outlet 5 at the other end of the filter frame 1 away from the inlet 2, a solenoid valve 8 on the inner surface of the filter frame 1, a connecting frame 9 fixedly installed on the outer surface of the filter frame 1, a slot 10 at the other end of the connecting frame 9 away from the filter frame 1, and a filter assembly 11 inserted into the connecting frame 9 through the slot 10.

[0031] The filter assembly 11 includes a first filter cartridge 1101, a second filter cartridge 1105, and a filter screen 1107. A connecting pipe 1103 is provided between the first filter cartridge 1101 and the second filter cartridge 1105, which communicates with the first filter cartridge 1101 and the second filter cartridge 1105.

[0032] Specifically, a sealing gasket 3 is fixedly installed at one end of the inlet 2, and a sealing gasket 6 is fixedly installed at one end of the outlet 5. Both sealing gaskets 3 and 6 are rubber gaskets. The advantage is that both sealing gasket 3 at the inlet 2 and sealing gasket 6 at the outlet 5 are rubber gaskets. By utilizing the good elasticity and sealing properties of rubber, leakage of the filter medium at the inlet 2 can be effectively prevented, thereby improving the overall sealing performance of the filter.

[0033] Specifically, flange 4 is fixedly installed at one end of inlet 2, and flange 7 is fixedly installed at one end of outlet 5. The advantage is that flange 4 at inlet 2 and flange 7 at outlet 5 facilitate the connection of the filter to external pipelines. It can be fixedly connected not only by flanges, but also by threaded connection of pipelines, which can realize multiple connection methods and improve the overall practicality of the filter.

[0034] Specifically, inlet 2 and outlet 5 are interconnected, filter frame 1 and filter assembly 11 are interconnected, and solenoid valve 8 is located between inlet 2 and outlet 5. The advantage is that inlet 2 and outlet 5 are interconnected, filter frame 1 and filter assembly 11 are interconnected, and solenoid valve 8 is located between the two. When the filter is working, the medium to be filtered can flow smoothly from inlet 2 into filter assembly 11, and after being filtered by the filter screen, it flows out from outlet 5. Solenoid valve 8 can control the flow direction and on / off of the medium, making it convenient to switch the filtration state when needed, meeting the functional requirements of online switching, and greatly improving the flexibility of filter use.

[0035] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0036] Specifically, a retaining frame 1102 is fixedly installed at one end of filter cartridge 1101 near the outer frame 1 of the filter, and a retaining frame 2106 is fixedly installed at one end of filter cartridge 1105 near the outer frame 1 of the filter. The advantage is that the retaining frame 1102 of filter cartridge 1101 and the retaining frame 2106 of filter cartridge 1105 make it easy to install filter cartridge 1101 and filter cartridge 1105 in the connecting frame 9 of the outer frame 1 of the filter. The cooperation between the retaining frame and the retaining groove 10 not only makes the installation process simple and convenient, but also ensures the stability of the filter assembly 11 after installation, preventing shaking or displacement during the filtration process and affecting the filtration effect.

[0037] Specifically, the connecting pipe 1103 has a U-shaped cross-section, and a solenoid valve 1104 is installed on the outer surface of the connecting pipe 1103. The advantage is that the U-shaped connecting pipe 1103 enables the interconnection between filter cartridge 1101 and filter cartridge 1105, ensuring that the medium can flow smoothly between the two filter cartridges. The solenoid valve 1104 outside the connecting pipe 1103 can control the medium flow status between the two filter cartridges. When it is necessary to switch filter cartridges for online filtration, the switching of the two filter cartridges can be quickly realized by controlling the opening and closing of the solenoid valve 1104, which improves the working efficiency and flexibility of the filter.

[0038] Specifically, there are two identical filter screens 1107. The inner surfaces of both filter cartridges 1101 and 1105 are equipped with filter screens 1107. The advantage is that the presence of filter screens 1107 in both filter cartridges increases the filtration area, effectively improving the filtration accuracy and efficiency of the filter. When one filter cartridge is filtering, the other filter cartridge can be used as a backup or for cleaning and maintenance, realizing a dual-cartridge filtration function that can be switched online. This ensures the continuity of filtration work and reduces downtime caused by replacing filter screens or filter cartridges.

[0039] Working principle: During use, the medium to be filtered enters the filter outer frame 1 from inlet 2. With the interconnection structure between the filter outer frame 1 and the filter assembly 11, it flows into the filter assembly 11. The filter screens 1107 in filter cylinder 1101 and filter cylinder 2105 filter the medium. The filtered medium flows out from outlet 5. Solenoid valve 18 is installed between inlet 2 and outlet 5 to control the flow direction and on / off of the medium. The connecting pipe 1103 has a "U" shaped structure to realize the interconnection between filter cylinder 1101 and filter cylinder 2105. When it is necessary to switch filter cylinders, the flow path of the medium between the two filter cylinders is changed by controlling the opening and closing of solenoid valve 2104 on the connecting pipe 1103, realizing online switching of filter cylinders. When one filter cylinder is working, the other filter cylinder can be cleaned or maintained.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-cylinder filter with online switching capability, comprising a filter frame (1), characterized in that: The filter frame (1) has an inlet (2) at one end and an outlet (5) at the other end away from the inlet (2). The filter frame (1) has a solenoid valve (8) on its inner surface and a connecting frame (9) fixedly installed on its outer surface. The connecting frame (9) has a slot (10) at the other end away from the filter frame (1). The connecting frame (9) has a filter assembly (11) inserted into it through the slot (10). The filter assembly (11) includes a first filter cylinder (1101), a second filter cylinder (1105), and a filter screen (1107). A connecting pipe (1103) is provided between the first filter cylinder (1101) and the second filter cylinder (1105) to communicate with the first filter cylinder (1101) and the second filter cylinder (1105).

2. The online switchable dual-cylinder filter according to claim 1, characterized in that: A sealing gasket 1 (3) is fixedly installed at one end of the inlet (2), and a sealing gasket 2 (6) is fixedly installed at one end of the outlet (5). The sealing gasket 1 (3) and the sealing gasket 2 (6) are rubber gaskets.

3. The online switchable dual-cylinder filter according to claim 1, characterized in that: A flange 1 (4) is fixedly installed at one end of the inlet (2), and a flange 2 (7) is fixedly installed at one end of the outlet (5).

4. The online switchable dual-cylinder filter according to claim 1, characterized in that: The inlet (2) and outlet (5) are interconnected, the filter frame (1) is interconnected with the filter assembly (11), and the solenoid valve (8) is located between the inlet (2) and outlet (5).

5. A dual-cylinder filter with online switching capability according to claim 1, characterized in that: A first clip frame (1102) is fixedly installed at one end of the filter cylinder (1) near the outer frame (1), and a second clip frame (1106) is fixedly installed at one end of the filter cylinder (1105) near the outer frame (1).

6. The online switchable dual-cylinder filter according to claim 1, characterized in that: The connecting pipe (1103) has a "U" shaped cross-section, and a solenoid valve (1104) is provided on the outer surface of the connecting pipe (1103).

7. A dual-cylinder filter with online switching capability according to claim 1, characterized in that: Two identical filter screens (1107) are provided, and filter screens (1107) are provided on the inner surfaces of both filter cylinder one (1101) and filter cylinder two (1105).

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