A barrel filter

Abstract

The utility model relates to a kind of bucket filter in filter field, including filter bucket and bucket cover, filter cavity is formed in filter bucket, and the liquid inlet and the blow-off port that filter cavity are communicated are provided on filter bucket, the filter chamber and the liquid discharge chamber are formed by partition in the filter cavity, liquid inlet is located at the outer side of filter bucket, and liquid inlet is tangentially set with filter bucket and is communicated with filter chamber, the liquid outlet is set on the outer side of filter bucket, the end of liquid inlet is connected with liquid inlet pipeline, support frame is detachably hung on partition by connecting hole, shaping support is connected on support frame by hanging rack, shaping support is set in support frame by penetrating sleeve, shaping support is detachably sleeved with filter bag outside, the utility model is tangentially set by inlet and filter chamber inner wall, liquid is guided into the rotation of spiral and downward flow from liquid inlet, so as to produce centrifugal separation impurities in liquid, ensure the filtration effect of liquid and prevent blockage.

Description

Technical Field

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

[0002] In industrial production and daily life, fluid filtration is a crucial step. Barrel filters, as a common filtration device, are widely used in many industries due to their relatively simple structure, convenient installation and maintenance, and large filtration area. They effectively remove solid particles, suspended solids, impurities, and other contaminants from fluids, ensuring the smooth operation of subsequent processes, improving product quality, and protecting related equipment from damage by impurities, thus extending equipment lifespan.

[0003] Existing canister filters typically consist of a canister body, filter elements, inlet and outlet pipes, and sealing devices. The canister body is generally made of metal or high-strength plastic, providing space for the entire filtration process and withstanding fluid pressure. The filter elements are the core components of the canister filter, commonly taking the form of filter screens or filter cartridges. Different materials and pore sizes of filter elements can be selected depending on the required filtration precision. The inlet and outlet pipes are located at appropriate positions within the canister for fluid introduction and discharge. The sealing device ensures the canister remains well-sealed during filtration, preventing fluid leakage.

[0004] However, existing barrel filters still have some shortcomings and deficiencies that urgently need to be addressed. In fluids containing debris or impurities, such as cutting fluids or cutting oils containing debris, ordinary filters have poor filtration efficiency and cannot meet reliable filtration requirements, thus affecting subsequent production processes or efficiency. Furthermore, the liquid inlet structure of existing filters is prone to clogging due to impurities during long-term use. As impurities accumulate in the fluid, the filter elements are easily clogged, leading to a sharp increase in filtration resistance and preventing normal fluid flow. Once clogging occurs, the filtration process needs to be stopped for cleaning or replacement of the filter elements. Additionally, debris can affect the lifespan of internal filter elements, negatively impacting production continuity and the stability of filtration performance. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned defects by providing a barrel filter. This addresses the technical problems in the prior art, such as poor filtration effect and simple liquid inlet structure, which lead to impurities in the liquid easily clogging the filter element and extending its service life, thus hindering production continuity and filtration stability.

[0006] The objective of this utility model is achieved through the following means:

[0007] A barrel-type filter includes a filter barrel and a barrel cover. A filter chamber is formed inside the filter barrel, and an inlet and a drain outlet communicating with the filter chamber are provided on the filter barrel. The filter chamber is characterized by: a filter compartment and a drain compartment being formed by a partition; the inlet is located on the outer side of the filter barrel and is tangentially positioned to the filter barrel and offsetly communicated with the filter compartment, allowing the medium to be centrifugally separated along the inner wall of the filter compartment; an outlet communicating with the drain compartment is provided on the outer side of the filter barrel; an inlet pipe is connected to the end of the inlet away from the filter barrel; a connecting hole is provided on the partition; a support frame is detachably hung on the partition through the connecting hole; a shaped bracket is connected to the support frame via a hanger; the shaped bracket is fitted inside the support frame with a gap between it and the support frame; and a filter bag is detachably fitted on the outer side of the shaped bracket.

[0008] Furthermore, as described above, the end of the inlet pipe furthest from the filter tank is connected to a vortex filter for preliminary filtration. The vortex filter is connected to the inlet pipe via a drain port, and a liquid guide port for introducing liquid is provided on the side of the vortex filter.

[0009] Furthermore, as described above, the filter chamber is located at the bottom of the filter bucket, the drain chamber is located at the top of the filter bucket, and the drain outlet is located at the bottom of the filter bucket and communicates with the filter chamber.

[0010] By placing the filter chamber at the bottom of the filter tank and the drain chamber at the top, gravity is used to achieve natural solid-liquid stratification, allowing liquids containing debris or impurities to settle fully within the filter chamber. Simultaneously, the filter bag design prevents impurities from directly entering the drain chamber and causing secondary pollution. The drain outlet is directly connected to the bottom filter chamber, facilitating the rapid discharge of deposited solid impurities, reducing the frequency of manual cleaning, and lowering the risk of increased filtration resistance due to impurity accumulation. This extends the lifespan of the filter element and ensures the continuity and stability of the filtration process.

[0011] Furthermore, as described above, the partition is sealed to the inner wall of the filter chamber by welding, one end of the support frame passes through the connection hole into the filter chamber, and the support frame is hung and contacted with the partition by a support flange.

[0012] The welded sealing structure between the partition and the inner wall of the filter chamber separates the filter chamber into a filtration chamber and a drainage chamber, ensuring the stability and reliability of filtration.

[0013] Furthermore, as described above, the partition plate is provided with an installation groove, the bottom of the support flange is provided with a sealing ring that fits into the groove, and the outer side of the support frame is provided with a through hole.

[0014] The fitting of the support flange and the partition groove with the sealing ring design significantly enhances the sealing performance at the connection through physical limiting and sealing, improving the sealing performance of the support flange and the partition and the stability after fitting.

[0015] Furthermore, as described above, the shaping bracket is held by the shaping flange and the support flange. One end of the shaping bracket is inserted into the support frame, and the outer side of the shaping bracket is provided with mesh. The bracket is installed on the shaping flange, and a compression spring is provided on the top of the bracket.

[0016] The gap fit between the shaping bracket and the support frame allows the filter bag to expand naturally under liquid pressure, thereby forming a three-dimensional filtration layer outside the shaping bracket, increasing the effective filtration area and reducing local clogging caused by impurity accumulation; the compression spring applies pre-tightening force to the shaping bracket through the hanger, which can buffer the impact of the liquid and maintain the stability of the shaping bracket when it is fixed, preventing the filter bag from floating or falling off due to pressure, thereby improving filtration stability and reliability.

[0017] Furthermore, as described above, the bucket lid is paired and installed on the filter bucket, and the bucket lid is connected to the filter bucket by bolts. A handle is connected to the top of the bucket lid.

[0018] The bolted lid structure is easy to assemble and disassemble, facilitating regular inspection or replacement of the internal filter bag and reducing maintenance time. The top handle allows for single-person operation of opening and closing the lid, reducing labor intensity, improving equipment maintainability, and thus ensuring the continuity of the production process.

[0019] Furthermore, as described above, the side of the filter barrel is provided with a mounting bracket, the vortex filter is mounted on the mounting bracket, and the bottom of the vortex filter is connected to a drain valve.

[0020] The mounting bracket secures the vortex filter to the side of the filter housing. Pre-separated particulate impurities can be periodically discharged through the drain valve at the bottom of the vortex filter, preventing impurities from entering the filter housing and causing rapid clogging of the filter bag. This extends the service life of the core filter element and reduces maintenance costs.

[0021] Optionally, a vortex filter is used to perform a first preliminary pre-filtration of the liquid, and the pre-filtered liquid is introduced into the filter chamber through the inlet and then filtered a second time through the filter bag, thereby improving the filtration effect of the liquid.

[0022] Furthermore, as described above, the side of the filter bucket is connected to a blockage detection alarm for detecting filter chamber blockage, and the top of the bucket lid is equipped with a backflush cleaning valve.

[0023] Optionally, when the filter bag is clogged, after the clogging detection alarm is activated, the filter chamber can be cleaned through the backflush cleaning valve. Specifically, turn off the external liquid lift pump, open the drain port at the bottom of the filter tank, connect the backflush cleaning valve to compressed air, and clean the filter bag by introducing compressed gas into the filter chamber.

[0024] Optionally, the inlet is connected to a one-way check ball valve, and the outlet is connected to a solenoid drain valve. When the check ball valve and the solenoid drain valve are both solenoid valves, the backflush cleaning valve is an automatic cleaning valve, thereby enabling the automatic cleaning of the filter bag.

[0025] The beneficial effects of this invention are as follows: By tangentially positioning the inlet to the filter chamber, the liquid forms a spiral vortex along the inner wall of the filter cavity. This facilitates high-speed rotation of the liquid within the filter chamber, generating centrifugal force, which enhances the centrifugal separation of impurities and liquid. Impurities are then quickly deposited in the drain area and discharged, reducing direct impact and clogging of the filter bag and extending its service life. Simultaneously, the baffle plate allows impurities to be filtered and deposited within the filter chamber, allowing the filtered liquid to be discharged through the outlet. The spiral flow of the filter medium effectively reduces the filtration load on the downstream filter bag, preventing puncture damage from large particles and extending its service life. This ensures efficient and effective liquid filtration. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure in the first direction of this embodiment;

[0027] Figure 2 This is a schematic diagram of the overall structure in the second direction in this embodiment.

[0028] Figure 3 This is an exploded view of this embodiment;

[0029] Figure 4 This is a schematic diagram of the overall structure in the first direction of this embodiment two;

[0030] Figure 5 This is a schematic diagram of the overall structure in the second direction of this embodiment;

[0031] Figure 6 This is a schematic diagram showing the open state of the bucket lid in this embodiment;

[0032] Figure 7 This is a schematic diagram of the internal structure of this embodiment;

[0033] The reference numerals in the diagram are as follows: 1-Inlet pipe, 2-Blocking detection alarm, 3-Backflush cleaning valve; 100-Filter tank, 101-Inlet, 102-Drain outlet, 103-Filter chamber, 104-Drain chamber, 105-Outlet, 200-Lid cap, 201-Handle, 300-Baffle plate, 301-Connection hole, 302-Mounting groove, 400-Mounting bracket, 500-Vortex filter, 501-Drain outlet, 502-Guide port, 503-Drain valve, 600-Support frame, 601-Support flange, 602-Through hole, 700-Compression spring, 800-Shaped bracket, 801-Shaped flange, 802-Hanger, 900-Filter bag. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme 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. Therefore, they should not be construed as limitations on this application.

[0037] Example 1

[0038] In this embodiment, refer to Figures 1-3 The present invention relates to a barrel filter, comprising a filter barrel 100 and a barrel cover 200. A filter chamber is formed within the filter barrel 100, and the filter barrel 100 is provided with an inlet 101 and a drain 102 communicating with the filter chamber. A filter chamber 103 and a drain chamber 104 are formed within the filter chamber by a partition 300. The inlet 101 is located on the outer side of the filter barrel 100 and is tangentially arranged to the filter barrel 100 and offset from the filter chamber 103. The filter chamber is connected to allow the medium to be centrifugally separated along the inner wall of the filter chamber. A through connection hole 301 is provided on the partition plate 300. A support frame 600 is detachably hung on the partition plate 300 through the connection hole 301. A shaping bracket 800 is connected to the support frame 600 through a hanger 802. The shaping bracket 800 is sleeved inside the support frame 600, and a gap is formed between the shaping bracket 800 and the support frame 600. A filter bag 900 is detachably sleeved on the outside of the shaping bracket 800.

[0039] The filter chamber 103 is located at the bottom of the filter barrel 100, the drain chamber 104 is located at the top of the filter barrel 100, and the drain outlet 102 is located at the bottom of the filter barrel 100 and communicates with the filter chamber 103.

[0040] By placing the filter chamber 103 at the bottom of the filter bucket 100 and the drain chamber 104 at the top, gravity is used to achieve natural solid-liquid stratification, allowing the liquid containing debris or impurities to settle fully in the filter chamber 103. At the same time, the filter bag 900 prevents impurities from directly entering the drain chamber 104 and causing secondary pollution. The design of the drain port 102 directly connecting to the bottom filter chamber 103 facilitates the rapid discharge of deposited solid impurities, reduces the frequency of manual cleaning, and lowers the risk of increased filtration resistance due to impurity accumulation, thereby extending the service life of the filter element and ensuring the continuity and stability of the filtration process.

[0041] The partition 300 is sealed to the inner wall of the filter chamber by welding. One end of the support frame 600 passes through the connection hole 301 and enters the filter chamber 103. The support frame 600 is hung and contacted with the partition 300 through the support flange 601.

[0042] The welded sealing structure between the partition 300 and the inner wall of the filter chamber separates the filter chamber into a filter chamber 103 and a drain chamber 104, ensuring the stability and reliability of filtration.

[0043] The partition plate 300 has an installation groove 302, the bottom of the support flange 601 is provided with a sealing ring that fits into the groove, and the outer side of the support frame 600 has a through hole 602.

[0044] The sealing ring design of the support flange 601 and the groove of the partition plate 300 significantly enhances the sealing performance of the connection through physical limiting and sealing, and improves the sealing performance of the support flange 601 and the partition plate 300 and the stability after installation.

[0045] The shaping bracket 800 is held by the shaping flange 801 and the support flange 601. One end of the shaping bracket 800 is inserted into the support frame 600, and the outer side of the shaping bracket 800 is provided with mesh. The hanger 802 is installed on the shaping flange 801, and the top of the hanger 802 is provided with a compression spring 700.

[0046] The clearance fit between the shaping bracket 800 and the support frame 600 allows the filter bag 900 to expand naturally under liquid pressure, thereby forming a three-dimensional filtration layer outside the shaping bracket 800, increasing the effective filtration area and reducing local clogging caused by impurity accumulation; the compression spring 700 applies a pre-tightening force to the shaping bracket 800 through the hanger 802, which can buffer the impact of the liquid and maintain the stability of the shaping bracket 800 when it is fixed, preventing the filter bag 900 from floating or falling off due to pressure, thereby improving filtration stability and reliability.

[0047] The lid 200 is paired and installed on the filter barrel 100. The lid 200 is connected to the filter barrel 100 by bolts, and a handle 201 is connected to the top of the lid 200.

[0048] The bolted barrel lid 200 structure is easy to assemble and disassemble, facilitating regular inspection or replacement of the internal filter bag 900 and reducing maintenance time; the top handle 201 allows for single-person operation of opening and closing the barrel lid 200, reducing labor intensity, improving equipment maintainability, and thus ensuring the continuity of the production process.

[0049] The filter bucket 100 is connected to a blockage detection alarm 2 for detecting blockage of the filter chamber 103, and the top of the bucket cover 200 is provided with a backflush cleaning valve 3.

[0050] Optionally, when the filter bag 900 is clogged, after the clogging detection alarm is activated, the filter chamber can be cleaned through the backflush cleaning valve 3. Specifically, turn off the external liquid lift pump, open the drain port 102 at the bottom of the filter bucket 100, connect the backflush cleaning valve 3 to compressed air, and clean the filter bag 900 by introducing compressed gas into the filter chamber.

[0051] In other specific implementation processes, the liquid inlet 101 is connected to a one-way check ball valve, and the drain outlet is connected to a solenoid drain valve. When the check ball valve and the solenoid drain valve are composed of solenoid valves, the backflush cleaning valve 3 is composed of an automatic cleaning valve, thereby realizing the function of automatically cleaning the filter bag 900.

[0052] The specific usage process in this embodiment is as follows:

[0053] For example, the filter in this embodiment is used to filter cutting fluid, such as in CNC lathes, CNC milling machines, machining centers, etc. The cutting fluid is introduced into the filter chamber 103 through the inlet 101 via the inlet pipe 1 by a booster pump. By setting the inlet 101 tangentially to the filter tank 100, the liquid forms a spiral vortex along the inner wall of the filter chamber. The liquid enters the filter tank 100 and generates high-speed rotation and centrifugal force, which causes the impurities in the cutting fluid to be separated from the liquid by centrifugal force. Large particles of impurities are quickly settled to the drain port 102 area. At this time, the cutting fluid is filtered twice by the filter screen to prevent impurities from entering the drain chamber 104. When the liquid level reaches the drain port 501, it is discharged through the drain pipe. This completes the spiral centrifugal separation of the liquid and the filtration of the filter bag before discharge, improving the liquid filtration effect and reliability.

[0054] Example 2

[0055] In this embodiment, refer to Figures 4-7 The difference between this embodiment 2 and embodiment 1 is that: the outer side of the filter bucket 100 is provided with an outlet 105 that communicates with the drain chamber 104, the end of the inlet 101 away from the filter bucket 100 is connected to an inlet pipe 1, the end of the inlet pipe 1 away from the filter bucket 100 is connected to a vortex filter 500 for preliminary filtration, the vortex filter 500 is connected to the inlet pipe 1 through the drain port 501, and the side of the vortex filter 500 is provided with a liquid guide port 502 for introducing liquid, the side of the filter bucket 100 is provided with a mounting bracket 400, the vortex filter 500 is mounted on the mounting bracket 400, and the bottom of the vortex filter 500 is connected to a drain valve 503. The mounting bracket 400 fixes the vortex filter 500 to the side of the filter barrel 100. The pre-separated particulate impurities can be periodically discharged through the drain valve 503 at the bottom of the vortex filter 500, preventing impurities from entering the filter barrel 100 and causing the filter bag 900 to become clogged quickly, thereby extending the service life of the core filter element and reducing maintenance costs.

[0056] In the specific implementation process, the vortex filter 500 is used to perform the first preliminary pre-filtration of the liquid, and the liquid after preliminary pre-filtration is introduced into the filter chamber 103 through the liquid inlet 101 and then undergoes secondary filtration through the filter bag 900, thereby improving the filtration effect of the liquid.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A barrel-type filter, comprising a filter barrel and a barrel cover, wherein a filter chamber is formed inside the filter barrel, and the filter barrel is provided with an inlet and a drain port communicating with the filter chamber, characterized in that: The filter chamber is divided into a filter chamber and a drain chamber by a partition. The inlet is located on the outer side of the filter barrel and is tangential to the filter barrel and communicates with the filter chamber, so that the medium can be centrifugally separated along the inner wall of the filter chamber. The outer side of the filter barrel is provided with an outlet that communicates with the drain chamber. The end of the inlet away from the filter barrel is connected to an inlet pipe. The partition has a through connection hole, and a support frame is detachably hung on the partition through the connection hole. A shaped bracket is connected to the support frame through a hanger. The shaped bracket is sleeved inside the support frame, and a gap is formed between the shaped bracket and the support frame. A filter bag is detachably sleeved on the outer side of the shaped bracket.

2. The barrel filter according to claim 1, characterized in that: The end of the inlet pipe away from the filter barrel is connected to a vortex filter for preliminary filtration. The vortex filter is connected to the inlet pipe through a drain port, and a liquid guide port for introducing liquid is provided on the side of the vortex filter.

3. A barrel filter according to claim 2, characterized in that: The filter chamber is located at the bottom of the filter barrel, the drain chamber is located at the top of the filter barrel, and the drain outlet is located at the bottom of the filter barrel and communicates with the filter chamber.

4. A barrel filter according to claim 1, characterized in that: The partition is sealed to the inner wall of the filter chamber by welding. One end of the support frame passes through the connection hole into the filter chamber, and the support frame is hung and contacted with the partition by the support flange.

5. A barrel filter according to claim 4, characterized in that: The partition plate has an installation groove, the bottom of the support flange is provided with a sealing ring that fits into the groove, and the outer side of the support frame has a through hole.

6. A barrel filter according to claim 4, characterized in that: The shaped bracket is held by the shaped flange and the support flange. One end of the shaped bracket is inserted into the support frame, and the outer side of the shaped bracket is provided with mesh. The bracket is installed on the shaped flange, and the top of the bracket is provided with a compression spring.

7. A barrel filter according to claim 6, characterized in that: The lid is installed on the filter barrel in pairs. The lid is connected to the filter barrel by bolts, and a handle is connected to the top of the lid.

8. A barrel filter according to claim 2 or 3, characterized in that: The filter barrel is provided with a mounting bracket on its side, the vortex filter is mounted on the mounting bracket, and the bottom of the vortex filter is connected to a drain valve.

9. A barrel filter according to any one of claims 1-7, characterized in that: The filter barrel is connected to a blockage detection alarm for detecting filter chamber blockage on its side, and a backflush cleaning valve is installed on the top of the barrel cover.

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