Rotational flow damping type filter

Abstract

The utility model provides a rotational flow damping type filter. The rotational flow damping type filter comprises a base; the barrel is arranged on the base and used for containing liquid to be filtered, and the bottom of the barrel is connected with a slag storage hopper; the liquid outlet is connected to the top of the outer side wall of the barrel, a filter screen is arranged at one end of the inner side of the liquid outlet, and the liquid outlet is used for outputting filtered liquid; the liquid inlet is connected to the upper part of the outer side wall of the cylinder body, is positioned below the liquid outlet, is tangent to the cylinder body, and is used for inputting liquid to be filtered into the cylinder body and forming rotational flow; the multiple damping baffles are arranged on the lower middle portion of the inner side wall of the barrel in a circumferential array mode, located below the liquid inlet and used for enabling solid particles in the liquid to be filtered to slide down to the slag storage hopper along the damping baffles, the multiple damping baffles are obliquely arranged in the flowing direction of rotational flow, and the width of each damping baffle is gradually increased from top to bottom. The rotational flow damping type filter is simple in structure, convenient to assemble, good in filtering effect, low in operation and maintenance cost and long in service life.

Description

Technical Field

[0001] The present application relates to the field of filtering technology, and in particular to a swirl damping filter. Background Art

[0002] Traditional solid content filters include Y-shaped filters, cartridge filters, screen filters, etc. These filters all use filter components to mechanically intercept particles in the liquid and filter out the required liquid; Figure 1 The structure diagram of a filter in the related art is shown, wherein the liquid inlet is arranged at the top of the cylinder, the liquid outlet is arranged at the transition bucket at the bottom, a bearing seat is arranged at the upper end of the cylinder, three through holes are arranged on the bearing seat, and a filter cartridge is embedded in the through hole. The liquid containing solid particles flows from top to bottom, passes through the liquid inlet, the filter cartridge and the transition bucket in sequence, and then flows out from the liquid outlet. The filter cartridge filters the particles to form slag, thereby achieving the function of purifying the liquid. However, the defect is that the filter cartridge will be blocked after a period of use, and the blockage will increase the flow resistance, increase the pressure drop, and consume a lot of energy. At the same time, the fluid flow rate increases, and the filter cartridge is easily cracked by flushing. In addition, the filter cartridge is large in size, and it is time-consuming to replace, and the cost is high, and it is troublesome to maintain and clean. In addition, because the liquid outlet is arranged at the lowest end, the slag smaller than the filter screen diameter of the filter cartridge will still fall and flow out from the liquid outlet, reducing the filtration quality. Therefore, there is an urgent need for a high-efficiency and low-cost filter. Utility Model Content

[0003] In view of this, the purpose of the present application is to propose a cyclone damping filter to solve the related problems mentioned in the background technology.

[0004] Based on the above-mentioned purpose, the present application provides a swirl damping filter, comprising: a base; a cylinder, arranged on the base, used to accommodate liquid to be filtered, and a slag storage hopper is connected to the bottom; a liquid outlet, connected to the top of the outer wall of the cylinder, a filter screen is provided at the inner end of the liquid outlet, and the liquid outlet is used to output the filtered liquid; a liquid inlet, connected to the upper part of the outer wall of the cylinder, located below the liquid outlet, and arranged tangent to the cylinder, used to input the liquid to be filtered into the cylinder and form a swirl; a plurality of damping baffles, arranged in a circumferential array in the middle and lower part of the inner wall of the cylinder, located below the liquid inlet, used to make the solid particles in the liquid to be filtered slide along the damping baffles to the slag storage hopper, and the plurality of damping baffles are arranged obliquely along the flow direction of the swirl, and the width of each damping baffle gradually increases from top to bottom.

[0005] Furthermore, a first fixing ring and a second fixing ring are provided on the inner side wall of the cylinder, the first fixing ring is located above the second fixing ring, one end of the damping baffle is connected to the first fixing ring, and the other end is connected to the second fixing ring.

[0006] Furthermore, the distance between the first fixing ring and the second fixing ring is 1 / 4 to 1 / 2 of the diameter of the cylinder.

[0007] Furthermore, the inclination angle of the damping baffle is greater than or equal to 45° and less than or equal to 75°.

[0008] Furthermore, the top width of the damping baffle is 5 mm to 30 mm, and the bottom width of the damping baffle is greater than 50 mm and less than 1 / 4 of the diameter of the cylinder.

[0009] Furthermore, the diameter of the inscribed circle formed by the bottom edges of the plurality of damping baffles is 1 / 4 to 1 / 2 of the diameter of the cylinder.

[0010] Further, the sum of the port radius of the liquid outlet and the port radius of the liquid inlet is a first length, and the vertical distance between the liquid outlet and the liquid inlet is greater than the first length.

[0011] Furthermore, the liquid outlet and the liquid inlet are located on the same side of the cylinder, and the liquid outlet is arranged perpendicular to the side wall of the cylinder.

[0012] Furthermore, a drain valve is provided at the lower end of the slag storage hopper, a slag discharge valve is provided at the bottom of the slag storage hopper, and the drain valve is located above the slag discharge valve.

[0013] Furthermore, the cone angle of the slag hopper is 30° to 70°.

[0014] As can be seen from the above, the swirl damping filter provided in the present application includes: a base; a cylinder, which is arranged on the base and is used to accommodate the liquid to be filtered, and a slag storage bucket is connected to the bottom; a liquid outlet, which is connected to the top of the outer wall of the cylinder, and a filter screen is provided at the inner end of the liquid outlet, and the liquid outlet is used to output the filtered liquid. The filter screen only plays a blocking role and does not collect solid particles, thereby reducing the possibility of blockage and reducing operation and maintenance costs; a liquid inlet, which is connected to the upper part of the outer wall of the cylinder, is located below the liquid outlet, and is tangent to the cylinder, and is used to input the liquid to be filtered into the cylinder and form a swirl, thereby providing a basis for separating solid particles, and at the same time can flush the filter screen to prevent blockage; a plurality of damping baffles, circumferentially The array is arranged in the middle and lower part of the inner wall of the cylinder, below the liquid inlet, blocking the vortex flow, so that the solid particles in the liquid to be filtered slide along the damping baffle to the slag storage bucket to form slag under the action of gravity, while the solid content of the liquid above is greatly reduced, achieving the filtering effect; multiple damping baffles are arranged obliquely along the flow direction of the vortex, and the width of each damping baffle gradually increases from top to bottom, so that the flow channel from top to bottom gradually decreases, increasing the flow resistance of the lower liquid, reducing the vortex speed of the lower fluid, preventing the slag deposited in the slag storage bucket from being stirred, and ensuring the filtering effect; the vortex damping filter has a simple structure, is easy to assemble, has a good filtering effect, low operation and maintenance cost, and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional perspective structural diagram of a filter in the related art;

[0017] Figure 2 This is a three-dimensional perspective structural diagram of a swirl damping filter in an embodiment of the present application;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0019] Figure 4 It is a schematic diagram of the structure of the damping baffle, the first fixing ring and the second fixing ring.

[0020] Figure numerals: 1. base; 2. cylinder; 2-1. liquid outlet; 2-2. filter screen; 2-3. liquid inlet; 2-4. damping baffle; 2-5. first fixing ring; 2-6. second fixing ring; 2-7. cylinder cover; 2-8. transition bucket; 3. slag storage bucket; 3-1. drain valve; 3-2. slag discharge valve; 4. bearing seat; 5. filter cartridge. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood by people with ordinary skills in the field to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Traditional solid content filters include Y-shaped filters, cartridge filters, screen filters, etc. These filters all use filter components to mechanically intercept particles in the liquid and filter out the required liquid; Figure 1 The structure diagram of a filter in the related art is shown, wherein the liquid inlet 2-3 is arranged at the top of the cylinder 2, the liquid outlet 2-1 is arranged at the transition bucket 2-8 at the bottom, the upper end of the cylinder 2 is provided with a bearing seat 4, the bearing seat 4 is provided with three through holes, and a filter cartridge 5 is embedded in the through holes, and the liquid containing solid particles flows from top to bottom, passes through the liquid inlet 2-3, the filter cartridge 5 and the transition bucket 2-8 in sequence, and then flows out from the liquid outlet 2-1, and the filter cartridge 5 filters the particles to form slag, so as to achieve the effect of purifying the liquid, but the defect is that the filter cartridge 5 will be blocked after a period of use, and the flow resistance will increase after the blockage, so that the pressure drop will increase, and the energy consumption will be serious. At the same time, the fluid flow rate will increase, and the flushing of the filter cartridge 5 will easily cause it to crack; and the filter cartridge 5 is large in size, and it is time-consuming to replace, and the cost is high, and the maintenance and cleaning are troublesome; in addition, because the liquid outlet 2-1 is set at the lowest end, the slag smaller than the filter screen diameter of the filter cartridge 5 will still fall and flow out from the liquid outlet 2-1, reducing the filtration quality. Therefore, a high-efficiency and low-cost filter is urgently needed.

[0024] Below, through specific embodiments and in combination with the attached Figures 2 to 4 The technical solution of this application is further described in detail.

[0025] Some embodiments of the present application provide a swirl damping filter, such as Figures 2 to 4 As shown, it includes: a base 1; a cylinder 2, which is arranged on the base 1 and is used to accommodate the liquid to be filtered, and is connected to a slag storage hopper 3 at the bottom; a liquid outlet 2-1, which is connected to the top of the outer wall of the cylinder 2, and a filter screen 2-2 is provided at the inner end of the liquid outlet 2-1, and the liquid outlet 2-1 is used to output the filtered liquid; a liquid inlet 2-3, which is connected to the upper part of the outer wall of the cylinder 2, is located below the liquid outlet 2-1, is tangent to the cylinder 2, and is used to input the liquid to be filtered into the cylinder 2 and form a vortex; a plurality of damping baffles 2-4, which are arranged in a circumferential array at the middle and lower part of the inner wall of the cylinder 2, and are located below the liquid inlet 2-3, and are used to make the slag in the liquid to be filtered slide along the damping baffles 2-4 to the slag storage hopper 3, and the plurality of damping baffles 2-4 are inclined along the flow direction of the vortex, and the width of each damping baffle 2-4 gradually increases from top to bottom.

[0026] The base 1 plays a supporting role.

[0027] The cylinder 2, which is cylindrical in shape, is disposed on the base 1 and is used to contain the liquid to be filtered. The bottom is connected to a slag hopper 3, which is conical in shape, for example, and is used to temporarily store slag.

[0028] The liquid outlet 2-1 is connected to the top of the outer wall of the cylinder 2. A filter screen 2-2 is provided at the inner end of the liquid outlet 2-1. The filter screen 2-2 is located inside the cylinder 2. The liquid outlet 2-1 is used to output the filtered liquid. The filter screen 2-2 only plays a blocking role and does not collect solid particles, which reduces the possibility of blockage and reduces operation and maintenance costs. The liquid outlet 2-1 is set to the highest point so that as few solid particles as possible pass through the liquid outlet 2-1, extending the blockage period of the filter screen 2-2. At the same time, the filter screen 2-2 is installed at the upper liquid outlet 2-1 to filter the liquid at the liquid outlet 2-1 to further reduce the solid content.

[0029] The liquid inlet 2-3 is connected to the upper part of the outer wall of the cylinder 2, is located below the liquid outlet 2-1, and is arranged tangent to the cylinder 2. It is used to input the liquid to be filtered into the cylinder 2, so that most of the liquid moves along the cylinder wall to form a certain vortex, which provides a basis for separating solid particles. At the same time, the vortex can flush the filter screen 2-2 to prevent blockage. If the liquid inlet 2-3 and the liquid outlet 2-1 are set at the same height, the vortex flow will be weakened. If the liquid inlet 2-3 is set higher than the liquid outlet 2-1, the liquid to be filtered will be discharged without being processed by the damping baffle 2-4, thereby reducing the filtering effect.

[0030] A plurality of damping baffles 2-4 are arranged in a circumferential array at the middle and lower part of the inner wall of the cylinder 2, below the liquid inlet 2-3, to block the vortex flow, so that the solid particles in the liquid to be filtered slide along the damping baffles 2-4 to the slag storage hopper 3 under the action of gravity to form slag, and the solid content of the liquid above is greatly reduced, thereby achieving a filtering effect; Figure 3 As shown, the damping baffles 2-4 are evenly distributed along the inner wall of the cylinder 2, and the number is, for example, 2, 3, 4, 5, 6 or 8, etc., without specific limitation. The liquid inlet 2-3 can be set higher than half times the height of the cylinder 2, and the damping baffle 2-4 can be set slightly lower than half times the height of the cylinder 2. The vertical spacing between the damping baffle 2-4 and the liquid inlet 2-3 can be greater than the diameter of the liquid inlet 2-3, so as to avoid hindering the rotation effect of the liquid.

[0031] like Figure 3 As shown, direction B is the flow direction of the vortex, and multiple damping baffles 2-4 are inclined along the flow direction of the vortex. The width of each damping baffle 2-4 gradually increases from top to bottom, so that the flow channel from top to bottom gradually decreases, which increases the flow resistance of the lower liquid, reduces the vortex speed of the lower fluid, prevents the slag deposited in the slag hopper 3 from being stirred, and ensures the filtering effect; the original filtering method is changed, that is, the method of collecting slag by the filter 2-2 is changed to the bottom collection method. Due to its own weight and the upper vortex method, the filter 2-2 is continuously washed under the action of the vortex, and the slag in the filter 2-2 will not accumulate thicker with the increase of time, reducing the replacement time of the filter 2-2 and saving the replacement cost of the filter 2-2.

[0032] The swirl damping filter has a simple structure, is easy to assemble, has a good filtering effect, has a low operation and maintenance cost, and has a long service life.

[0033] In some embodiments, Figure 2 As shown, a detachably connected cylinder cover 2-7 is provided on the top of the cylinder body 2. When the filter screen 2-2 is clogged to the point where the outlet water pressure is too high, the cylinder cover 2-7 can be opened to take out the filter screen 2-2 for cleaning, thereby reducing the replacement cost of the filter screen 2-2 and shortening the maintenance time, extending the service life of the filter and improving the filtering quality.

[0034] In some embodiments, Figure 2 and Figure 4 As shown, the inner wall of the cylinder 2 is provided with a first fixing ring 2-5 and a second fixing ring 2-6, the first fixing ring 2-5 is located above the second fixing ring 2-6, one end of the damping baffle 2-4 is connected to the first fixing ring 2-5, and the other end is connected to the second fixing ring 2-6.

[0035] The damping baffle 2-4 can be welded to the first fixing ring 2-5 at one end and to the second fixing ring 2-6 at the other end, and then the first fixing ring 2-5 and the second fixing ring 2-6 are welded to the inner wall of the cylinder 2, which is convenient for processing and manufacturing.

[0036] In some embodiments, Figure 4 As shown, the distance between the first fixing ring 2 - 5 and the second fixing ring 2 - 6 is 1 / 4 to 1 / 2 of the diameter of the cylinder 2 .

[0037] like Figure 4 As shown, the distance between the first fixing ring 2-5 and the second fixing ring 2-6 is L2. Figure 3 As shown, the diameter of the cylinder 2 is R1, and L2 is set to (1 / 4 to 1 / 2) R1, such as 1 / 4R1, 1 / 3R1 or 1 / 2R1, etc., without specific limitation, which can ensure the blocking effect on the vortex and further ensure the separation effect on the solid particles.

[0038] In some embodiments, Figure 4 As shown, the inclination angle of the damping baffle 2-4 is greater than or equal to 45° and less than or equal to 75°.

[0039] like Figure 4 As shown, the inclination angle of the damping baffle 2-4 is b, and is set to 45°≤b≤75°, for example, 45°, 60° or 75°, etc., without specific limitation, to avoid too large an inclination angle, the damping baffle 2-4 is placed close to vertically, then the vertical downward resistance of the liquid will be smaller, which can easily cause the deposited slag to be stirred, resulting in excessive solid content and shortening the blocking time of the upper filter 2-2; also avoid too small an inclination angle, the damping baffle 2-4 is placed close to parallel, then the solid particles are not easy to slide off and are easy to accumulate on the damping baffle 2-4.

[0040] In some embodiments, Figure 4 As shown, the top width of the damping baffle 2 - 4 is 5 mm to 30 mm, and the bottom width of the damping baffle 2 - 4 is greater than 50 mm and less than 1 / 4 of the diameter of the cylinder 2 .

[0041] like Figure 4 As shown, the top width of the damping baffle 2-4 is D1, and D1 is set to 5mm to 30mm, for example, 5mm, 10mm, 15mm, 20mm, 25mm or 30mm, etc., without specific limitation, to ensure the connection strength and service life of the damping baffle 2-4 and avoid excessive increase in the upper resistance; the bottom width of the damping baffle 2-4 is D2, and 50mm<D2<1 / 4R1 is set, for example, 60mm, etc., to ensure that the flow resistance at the bottom is effectively increased to prevent the deposited slag from being stirred.

[0042] In some embodiments, Figure 3 As shown, the diameter of the inscribed circle formed by the bottom edges of the plurality of damping baffles 2 - 4 is 1 / 4 to 1 / 2 of the diameter of the cylinder 2 .

[0043] like Figure 3 As shown in the figure, the dotted circle is the inscribed circle formed by the bottom edges of multiple damping baffles 2-4, and the diameter of the inscribed circle is R2. It is set that R2 = (1 / 4~1 / 2)R1, for example, 1 / 4R1, 1 / 3R1 or 1 / 2R1, etc., without specific limitation, to ensure the separation effect of the slag.

[0044] In some embodiments, Figure 2 As shown, the sum of the port radius of the liquid outlet 2-1 and the port radius of the liquid inlet 2-3 is a first length, and the vertical distance between the liquid outlet 2-1 and the liquid inlet 2-3 is greater than the first length.

[0045] The liquid outlet 2-1 and the liquid inlet 2-3 are, for example, cylindrical, and the sum of the port radius of the liquid outlet 2-1 and the port radius of the liquid inlet 2-3 is a first length. Figure 2 As shown, the vertical distance between the liquid outlet 2-1 and the liquid inlet 2-3 is L1, and L1 is set to be greater than the first length to avoid the liquid outlet 2-1 affecting the swirl flow and reducing the solid particle separation effect.

[0046] In some embodiments, Figure 2 and Figure 3 As shown, the liquid outlet 2 - 1 and the liquid inlet 2 - 3 are located on the same side of the cylinder 2 , and the liquid outlet 2 - 1 is arranged perpendicular to the side wall of the cylinder 2 .

[0047] like Figure 2 As shown, the liquid outlet 2-1 and the liquid inlet 2-3 are located on the same side of the cylinder 2, which is easier to manufacture and requires less welding work. Moreover, the liquid flows out of the liquid outlet 2-1 after passing through the liquid inlet 2-3 and rotating for nearly one circle, thus promoting the swirl effect. Figure 3 As shown, the liquid outlet 2-1 is arranged perpendicular to the side wall of the cylinder 2, so that the filter screen 2-2 is also perpendicular to the cylinder wall. The swirl direction is different from the liquid outflow direction, which has a flushing and cleaning effect on the filter screen 2-2.

[0048] In some embodiments, Figure 2 As shown, a drain valve 3-1 is provided at the lower end of the slag hopper 3, a slag discharge valve 3-2 is provided at the bottom of the slag hopper 3, and the drain valve 3-1 is located above the slag discharge valve 3-2.

[0049] like Figure 2As shown, a drain valve 3-1 is provided at the lower end of the slag hopper 3, and a slag discharge valve 3-2 is provided at the bottom of the slag hopper 3. The drain valve 3-1 is located above the slag discharge valve 3-2. After a working cycle, the slag discharge valve 3-2 can be opened to discharge the slag under the action of gravity. Before discharging the slag, the drain valve 3-1 can be opened to discharge liquid, so that the liquid content of the bottom slag is lower, which is convenient for the discharge of the slag.

[0050] In some embodiments, Figure 2 As shown, the cone angle of the slag hopper 3 is 30° to 70°.

[0051] like Figure 2 As shown, the cone angle of the slag hopper 3 is a, which is set to 30°≤a≤70°, for example, 30°, 50° or 70°, etc., without specific limitation, and can guide the accumulation and discharge of slag.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of simplicity.

[0053] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A cyclone damping filter, characterized in that: include: Pedestal; The cylinder is arranged on the base and is used to contain the liquid to be filtered, and a slag storage hopper is connected to the bottom; A liquid outlet connected to the top of the outer wall of the cylinder, a filter screen is provided at one inner end of the liquid outlet, and the liquid outlet is used to output the filtered liquid; A liquid inlet, connected to the upper part of the outer wall of the cylinder, located below the liquid outlet, and arranged tangentially to the cylinder, for inputting the liquid to be filtered into the cylinder to form a vortex; A plurality of damping baffles are arranged in a circumferential array at the lower middle portion of the inner side wall of the cylinder, below the liquid inlet, and are used to allow solid particles in the liquid to be filtered to slide along the damping baffles to the slag hopper. The plurality of damping baffles are arranged obliquely along the flow direction of the vortex, and the width of each damping baffle gradually increases from top to bottom.

2. The swirl damping filter according to claim 1, characterized in that: A first fixing ring and a second fixing ring are provided on the inner side wall of the cylinder, the first fixing ring is located above the second fixing ring, one end of the damping baffle is connected to the first fixing ring, and the other end is connected to the second fixing ring.

3. The swirl damping filter according to claim 2, characterized in that: The distance between the first fixing ring and the second fixing ring is 1 / 4 to 1 / 2 of the diameter of the cylinder.

4. The swirl damping filter according to claim 1, characterized in that: The inclination angle of the damping baffle is greater than or equal to 45° and less than or equal to 75°.

5. The swirl damping filter according to claim 1, characterized in that: The top width of the damping baffle is 5 mm to 30 mm, and the bottom width of the damping baffle is greater than 50 mm and less than 1 / 4 of the diameter of the cylinder.

6. The swirl damping filter according to claim 1, characterized in that: The diameter of the inscribed circle formed by the bottom edges of the plurality of damping baffles is 1 / 4 to 1 / 2 of the diameter of the cylinder.

7. The swirl damping filter according to claim 1, characterized in that: The sum of the port radius of the liquid outlet and the port radius of the liquid inlet is a first length, and a vertical distance between the liquid outlet and the liquid inlet is greater than the first length.

8. The swirl damping filter according to claim 1, characterized in that: The liquid outlet and the liquid inlet are located on the same side of the cylinder, and the liquid outlet is arranged perpendicular to the side wall of the cylinder.

9. The swirl damping filter according to claim 1, characterized in that: A liquid discharge valve is provided at the lower end of the slag storage hopper, a slag discharge valve is provided at the bottom of the slag storage hopper, and the liquid discharge valve is located above the slag discharge valve.

10. The swirl damping filter according to claim 1, characterized in that: The cone angle of the slag hopper is 30° to 70°.

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