Filter device

Abstract

This utility model provides a filter device, including a housing and a filter element. The filter element has an inner filter cavity and is installed inside the housing, so that the housing and the filter element enclose an outer filter cavity. The housing has a water inlet, an air inlet, a water outlet, and a drain outlet. The water inlet and drain outlet are both connected to the outer filter cavity. The air inlet and water outlet are both connected to the inner filter cavity. The filter device includes a clean state, in which the drain outlet and air inlet are open, and the water inlet and water outlet are closed. This application uses air to blow air through the air inlet to clean the filter element, which can remove most of the dirt on the filter element without disassembling the filter device, reducing the number of times the filter element and its housing are disassembled and reassembled, avoiding various problems caused by improper assembly of the filter element and its housing, such as leakage due to loosening, damage and leakage due to over-tightening or excessive tightening, thus improving the cleaning efficiency and service life of the filter device.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment, and in particular to a filter device. Background Technology

[0002] In the photovoltaic industry, filters play a crucial role. They effectively remove particulate matter during the production process, thereby ensuring the quality of photovoltaic products, extending equipment lifespan, and reducing overall production costs. Furthermore, the application of filters significantly reduces failure rates, improves production efficiency, and provides stable support for the continued development of the entire photovoltaic industry.

[0003] With the continuous development of the photovoltaic industry, the regular cleaning of filter elements has become increasingly important. Therefore, the filter element and its housing need to be constantly disassembled and reassembled. However, during the cleaning and installation of the filter, improper assembly between the filter element and the housing can easily lead to leakage, and may even damage the filter. Utility Model Content

[0004] Therefore, it is necessary to provide a centrifugal pump and a skeleton oil seal to address the problem that leakage can easily occur between the filter element and the housing due to improper assembly when the filter is cleaned and installed in the prior art, which may even lead to filter damage.

[0005] The technical solution is as follows:

[0006] On one hand, a filter device is provided, comprising:

[0007] shell;

[0008] The filter element has an inner filter cavity and is installed inside the housing, so that the housing and the filter element surround and form an outer filter cavity;

[0009] The outer shell is provided with a water inlet, an air inlet, a water outlet, and a drain outlet. The water inlet and the drain outlet are both connected to the outer cavity of the filter, and the air inlet and the water outlet are both connected to the inner cavity of the filter.

[0010] In the filter device described in the above embodiments, during cleaning, the inlet and outlet are closed, the drain outlet is opened, and the liquid in the outer and inner filter chambers is discharged through the drain outlet. The air inlet is opened, and gas (such as compressed air, or nitrogen if needed) is blown into the inner filter chamber. The gas in the inner filter chamber passes through the filter element and blows into the outer filter chamber. As the gas passes through the filter element, it blows off dirt from the filter element, which falls into the outer filter chamber and is discharged from the drain outlet, thus cleaning the filter element. Compared to existing filter cleaning methods, this application's method of cleaning the filter element by blowing gas through the air inlet can remove most of the dirt from the filter element without disassembling the filter device. This reduces the number of times the filter element and its housing are disassembled and reassembled, avoiding various problems caused by improper assembly, such as leakage due to loosening, or damage and leakage due to over-tightening or excessive tightening. This improves the cleaning efficiency and service life of the filter device.

[0011] The technical solution will be further explained below:

[0012] In one embodiment, the filter device further includes a flushing state, in which the water inlet, the drain outlet and the air inlet are all open, and the water outlet is closed;

[0013] And / or, the filter device further includes a filtration state in which both the water inlet and the water outlet are open, and the air inlet and the drain outlet are closed.

[0014] In one embodiment, the filter device further includes an air inlet pipe and a water outlet pipe, the air inlet pipe passing through the air inlet and extending into the filter cavity, and the water outlet pipe passing through the water outlet and extending into the filter cavity.

[0015] In one embodiment, the filter device further includes an air inlet valve and a water outlet valve, the air inlet valve being mounted on the air inlet pipe and the water outlet valve being mounted on the water outlet pipe.

[0016] In one embodiment, the filter device further includes a seal having a first clearance hole for the air inlet pipe to pass through and a second clearance hole for the water outlet pipe to pass through. The seal is mounted on the inner wall of the housing to seal the air inlet pipe with the housing and the water outlet pipe with the housing.

[0017] In one embodiment, the outer casing includes a cover and a housing with a mounting groove, the cover being located at the opening of the mounting groove and detachably connected to the housing.

[0018] In one embodiment, the filter device further includes a seal mounted on the inner wall of the housing cover, and the filter element is mounted on the seal.

[0019] In one embodiment, the bottom of the mounting groove is provided with a fixing part, which is configured to cooperate with the cover to press the seal and the filter together when the cover and the housing are connected.

[0020] In one embodiment, the drain outlet is located at the bottom of the housing, and the filter device includes a drain pipe and a drain valve mounted on the drain pipe, the drain pipe passing through the drain outlet and extending into the filter outer cavity.

[0021] In one embodiment, the filter device includes a connector, an inlet pipe, and an inlet valve mounted on the inlet pipe. The connector is mounted at the inlet and connects the inlet and the inlet pipe. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a filter device according to one embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Filter device; 100. Housing; 110. Filter outer cavity; 120. Water inlet; 130. Housing cover; 140. Housing; 141. Mounting groove; 142. Fixing part; 200. Filter element; 210. Filter inner cavity; 310. Air inlet pipe; 311. Air outlet; 320. Air inlet valve; 410. Water outlet pipe; 420. Water outlet valve; 510. Seal; 610. Drain pipe; 620. Drain valve; 710. Connector; 720. Water inlet pipe; 730. Water inlet valve. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] like Figure 1 As shown, in one embodiment, a filter device 10 is provided, including a housing 100 and a filter element 200. The filter element 200 has a filter inner cavity 210 and is installed within the housing 100, such that the housing 100 and the filter element 200 enclose a filter outer cavity 110. The housing 100 has a water inlet 120, an air inlet, a water outlet, and a drain outlet. The water inlet 120 and the drain outlet are both connected to the filter outer cavity 110. The air inlet and the water outlet are both connected to the filter inner cavity 210. The filter device 10 includes a clean state. In the clean state, the drain outlet and the air inlet are open, and the water inlet 120 and the water outlet are closed.

[0029] In the above embodiment, the filter device 10, when performing cleaning operations, closes the inlet 120 and outlet, opens the drain outlet, and discharges the liquid in the outer filter chamber 110 and inner filter chamber 210 through the drain outlet. It also opens the air inlet and blows gas (such as compressed air, or nitrogen or other gases if needed) into the inner filter chamber 210 through the air inlet. The gas in the inner filter chamber 210 passes through the filter element 200 and blows it into the outer filter chamber 110. When the gas passes through the filter element 200, it blows out the dirt on the filter element 200. The dirt falls into the outer filter chamber 110 and is discharged from the drain outlet, thus cleaning the filter element 200. Compared with the existing filter cleaning methods, the present application uses air to clean the filter element 200 by blowing gas through the air inlet. This method can remove most of the dirt on the filter element 200 without disassembling the filter device 10, reducing the number of times the filter element 200 and its housing 100 are disassembled and reassembled. It avoids various problems caused by improper assembly of the filter element 200 and its housing 100, such as leakage due to loosening, damage and leakage due to over-tightening or excessive tightening, thereby improving the cleaning efficiency and service life of the filter device 10.

[0030] like Figure 1 As shown, optionally, the filter device 10 also includes a flushing state. In the flushing state, the water inlet 1201, the drain outlet, and the air inlet are all open, while the water outlet is closed. Thus, during the flushing operation, water is supplied to the filter outer cavity 110 through the water inlet 120 to flush away the dirt inside the filter outer cavity 110 and discharge it through the drain outlet, ensuring that all dirt blown out by the air can be discharged, thereby improving the reliability of the filter device 10.

[0031] Specifically in this embodiment, after the filter device 10 is kept in the flushing state for 2 to 3 minutes, the water inlet 120, air inlet, water outlet and drain outlet are closed.

[0032] like Figure 1 As shown, optionally, the filter device 10 also includes a filtration state. In the filtration state, both the inlet 120 and the outlet are open, while the air inlet and the drain outlet are closed. Thus, during filtration, liquid is supplied to the outer filter chamber 110 through the inlet 120. The liquid in the outer filter chamber 110 is filtered by the filter element 200 and flows into the inner filter chamber 210. The liquid in the inner filter chamber 210 is then discharged through the outlet, thereby achieving liquid filtration.

[0033] The filter element 200 can be configured as a filter cartridge, filter screen, or other filtration structure. The filter element 200 has a filtration cavity 210, which can be formed by the filter element 200 itself, or by the filter element 200 and the housing 100 or other components enclosing the filtration cavity 210. The filter element 200 can be installed within the housing 100 by snap-fit, plug-in, screw-in, or other methods.

[0034] Among them, any one of the water inlet 120, air inlet, water outlet and drain outlet can be set as a hole structure for the pipeline to pass through, or as an interface structure for connecting with the pipeline.

[0035] like Figure 1 As shown, in one embodiment, the filter device 10 further includes an air inlet pipe 310 and a water outlet pipe 410. The air inlet pipe 310 passes through the air inlet and extends into the filter inner cavity 210. The water outlet pipe 410 passes through the water outlet and extends into the filter inner cavity 210. In this way, gas can be stably and reliably delivered to the filter inner cavity 210 through the air inlet pipe 310 during the cleaning process, and the filtered liquid in the filter inner cavity 210 can be stably and reliably discharged through the water outlet pipe 410 during the filtration operation, thereby improving the reliability of the filter device 10.

[0036] like Figure 1 As shown, optionally, at least one air outlet 311 is provided on the side wall of the end of the air inlet pipe 310 that extends into the filter inner cavity 210. In this way, gas is discharged into the filter inner cavity 210 from each air outlet 311, so that the gas is more evenly distributed in the filter inner cavity 210, so as to evenly blow air onto the entire filter element 200 and improve the cleaning effect of the filter device 10.

[0037] like Figure 1As shown, optionally, the filter device 10 also includes an air inlet valve 320 and a water outlet valve 420. The air inlet valve 320 is installed on the air inlet pipe 310. The water outlet valve 420 is installed on the water outlet pipe 410. Thus, the air inlet valve 320 can be opened during cleaning operations to control the entry of gas into the filter chamber 210, and closed during filtration operations to prevent liquid in the filter chamber 210 from escaping from the air inlet pipe 310. The water outlet valve 420 can be closed during cleaning operations to prevent gas in the filter chamber 210 from escaping from the water outlet pipe 410, and opened during filtration operations to control the discharge of liquid in the filter chamber 210 from the water outlet pipe 410, thereby improving the practicality of the filter device 10.

[0038] like Figure 1 As shown, optionally, the filter device 10 also includes a seal 510. The seal 510 has a first clearance hole for the air inlet pipe 310 to pass through and a second clearance hole for the water outlet pipe 410 to pass through. The seal 510 is installed on the inner wall of the housing 100 to ensure a sealing fit between the air inlet pipe 310 and the housing 100, and a sealing fit between the water outlet pipe 410 and the housing 100. Thus, the seal 510 increases the sealing performance between the housing 100 and the air inlet pipe 310 and the water outlet pipe 410, ensuring that neither liquid nor gas leaks from the connection between the housing 100 and the air inlet pipe 310, and the connection between the housing 100 and the water outlet pipe 410, thereby improving the reliability of the filter device 10.

[0039] The sealing element 510 can be configured as a gasket, sealing ring, or other sealing structure. The sealing element 510 can be installed on the inner wall of the housing 100 by snap-fit, adhesive, or other fixed connection methods.

[0040] like Figure 1 As shown, in one embodiment, the housing 100 includes a cover 130 and a housing 140 having a mounting groove 141. The cover 130 is located at the opening of the mounting groove 141 and is detachably connected to the housing 140. Thus, the housing 100 has a detachable structure, which facilitates assembly with other components such as the filter element 200 and improves the practicality of the filter device 10.

[0041] The cover 130 can be detachably connected to the housing 140 by screwing, snapping or other means.

[0042] like Figure 1 As shown, the filter device 10 further includes a seal 510. The seal 510 is mounted on the inner wall of the housing cover 130. The filter element 200 is mounted on the seal 510. In this way, the filter element 200, the air inlet pipe 310, and the water outlet pipe 410 can be pre-installed on the housing cover 130, improving the ease of assembly of the filter device 10.

[0043] Specifically, in this embodiment, both the water inlet 120 and the drain outlet are located on the housing 140. Both the air inlet and the water outlet are located on the housing cover 130. When the sealing member 510 is installed on the inner wall of the housing cover 130, the air inlet is connected to the first clearance hole, and the water outlet is connected to the second clearance hole. The filter member 200 and the sealing member 510 surround to form a filter inner cavity 210. The outer wall of the filter member 200, the outer wall of the sealing member 510, the inner wall of the housing cover 130, and the inner wall of the mounting groove 141 surround to form a filter outer cavity 110.

[0044] like Figure 1 As shown, optionally, a fixing part 142 is provided at the bottom of the mounting groove 141. The fixing part 142 is configured to cooperate with the cover 130 to press the seal 510 and the filter element 200 together when the cover 130 and the housing 140 are connected. In this way, the seal 510 and the filter element 200 are pressed and fixed by the fixing part 142 and the cover 130, ensuring that the seal 510 and the filter element 200 will not move relative to the housing 100 under liquid impact during filtration operation, and ensuring that the seal 510 and the filter element 200 will not move relative to the housing 100 under gas impact during cleaning operation, thereby improving the reliability of the filter device 10.

[0045] The fixing part 142 can be configured as a fixing bracket, fixing seat or other fixing structure. The fixing part 142 can be disposed on the bottom wall of the mounting groove 141 or at the bottom of the inner side wall of the mounting groove 141. The fixing part 142 can be integrally formed with the housing 140, or it can be processed separately from the housing 140 and then installed at the bottom of the mounting groove 141.

[0046] like Figure 1 As shown, in one embodiment, the drain outlet is located at the bottom of the housing 100. The filter device 10 includes a drain pipe 610 and a drain valve 620 mounted on the drain pipe 610. The drain pipe 610 passes through the drain outlet and extends into the filter outer cavity 110. Thus, the drain valve 620 can be opened during cleaning operations to ensure that liquids, gases, and dirt inside the housing 100 can be discharged from the drain pipe 610, and closed during filtration operations to prevent liquids inside the filter outer cavity 110 from escaping from the drain pipe 610, thereby improving the practicality of the filter device 10.

[0047] like Figure 1 As shown, in one embodiment, the filter device 10 further includes a connector 710. The connector 710 is installed at and communicates with the water inlet 120. In this way, the water inlet 120 can be communicated with an external liquid supply device through the connector 710, improving the practicality of the filter device 10.

[0048] like Figure 1As shown, optionally, the filter device 10 includes an inlet pipe 720 and an inlet valve 730 installed on the inlet pipe 720. The inlet pipe 720 is connected to the connector 710. In this way, the inlet valve 730 can control the flow rate at the inlet 120, improving the practicality of the filter device 10.

[0049] Specifically, in this embodiment, the filter device 10 includes a controller. The air inlet valve 320, water outlet valve 420, drain valve 620, and water inlet valve 730 are all pneumatically or electrically controlled and are communicatively connected to the controller. Thus, the controller can accept user commands and generate corresponding filtration or cleaning signals, which are transmitted to the air inlet valve 320, water outlet valve 420, drain valve 620, and water inlet valve 730 to open or close accordingly, improving the practicality of the filter device 10.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A filter device, characterized in that, include: shell; The filter element has an inner filter cavity and is installed inside the housing, so that the housing and the filter element surround and form an outer filter cavity; The outer shell is provided with a water inlet, an air inlet, a water outlet, and a drain outlet. The water inlet and the drain outlet are both connected to the outer filter cavity, and the air inlet and the water outlet are both connected to the inner filter cavity. The filter device includes a clean state, in which the drain outlet and the air inlet are open, and the water inlet and the water outlet are closed.

2. The filter device according to claim 1, characterized in that, The filter device also includes a flushing state, in which the water inlet, the drain outlet and the air inlet are all open, and the water outlet is closed; And / or, the filter device further includes a filtration state in which both the water inlet and the water outlet are open, and the air inlet and the drain outlet are closed.

3. The filter device according to claim 1, characterized in that, The filter device further includes an air inlet pipe and a water outlet pipe. The air inlet pipe passes through the air inlet and extends into the filter cavity, and the water outlet pipe passes through the water outlet and extends into the filter cavity.

4. The filter device according to claim 3, characterized in that, The filter device further includes an air inlet valve and a water outlet valve, wherein the air inlet valve is installed on the air inlet pipe and the water outlet valve is installed on the water outlet pipe.

5. The filter device according to claim 3, characterized in that, The filter device further includes a seal, which has a first clearance hole for the air inlet pipe to pass through and a second clearance hole for the water outlet pipe to pass through. The seal is installed on the inner wall of the housing so that the air inlet pipe and the water outlet pipe are sealed together.

6. The filter device of claim 1, wherein, The outer casing includes a cover and a housing with a mounting groove. The cover is located at the opening of the mounting groove and is detachably connected to the housing.

7. The filter device of claim 6, wherein, The filter device further includes a seal, which is installed on the inner wall of the housing cover, and the filter element is installed on the seal.

8. The filter device of claim 7, wherein, The bottom of the mounting groove is provided with a fixing part, which is configured to cooperate with the shell cover to press the sealing element and the filter element together when the shell cover and the housing are connected.

9. The filter device according to any one of claims 1 to 8, characterized in that The drain outlet is located at the bottom of the housing. The filter device includes a drain pipe and a drain valve installed on the drain pipe. The drain pipe passes through the drain outlet and extends into the filter outer cavity.

10. The filter device according to any one of claims 1 to 8, characterized in that The filter device includes a connector, an inlet pipe, and an inlet valve installed on the inlet pipe. The connector is installed at the inlet and connects the inlet and the inlet pipe.

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