Reciprocating type non-clogging continuous filtering and purifying device

Abstract

The invention discloses a reciprocating type non-clogging continuous filtering and purifying device which comprises a filtering cylinder body, a reciprocating type air stamping assembly is arranged in the filtering cylinder body, an air entraining assembly and a liquid discharging assembly are arranged on the upper side and the lower side of the filtering cylinder body, and a filtering assembly is arranged on the filtering cylinder body. The filter assembly is flushed by ram air generated by the reciprocating type air ram assembly, and meanwhile liquid is drained into the liquid drainage assembly through negative pressure generated in the reciprocating process. The device does not need to be shut down to replace and clean a filtering part, or is externally connected with a flushing device, filters and purifies water or oil through a filter screen, entrains air, discharges liquid, discharges filtered liquid and washes and removes impurities on the filter screen in the reciprocating motion process of the piston, meets the non-clogging continuous use requirement of structural filtering and purification, and is simple in structure, convenient to operate and control and high in practicability. The filtering and purifying efficiency is improved, the performance requirement of filtering and purifying is met, and the economical efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filtration and purification, and in particular to a reciprocating non-clogging continuous filtration and purification device. Background Art

[0002] Filtration and purification technology is a widely used technical means, in which the filter components are the core of filtration and purification. Common ones include filter screens, filter papers, filter membranes, porous materials, etc. It can efficiently separate, purify, and refine substances, thereby greatly improving the quality and value of products. Filtration and purification technology covers many fields such as petrochemicals, medical treatment, food, biotechnology, and environmental protection. The main problems faced by filtration and purification technology are that the filter components are easy to clog and have limited impurity tolerance. Although it can effectively separate impurities in water or oil liquids, as impurities accumulate on its surface or internal gaps, the filter components will inevitably clog, resulting in reduced filtration efficiency or even failure to work. The general solution is to regularly remove the filter components for cleaning or flush external equipment, but this will affect the continuity of filtration and purification, especially in large-scale process flows. Summary of the invention

[0003] In view of this, the present invention provides a reciprocating non-clogging continuous filtering and purification device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A reciprocating non-clogging continuous filtering and purification device comprises a filter cylinder body, a reciprocating air punching assembly is arranged in the filter cylinder body, an air induction assembly and a liquid discharge assembly are arranged on the upper and lower sides of the filter cylinder body, and a filter assembly is arranged on the filter cylinder body. The punching air generated by the reciprocating air punching assembly flushes the filter assembly, and the negative pressure drainage liquid generated during the reciprocating process enters the liquid discharge assembly.

[0006] As a further improvement of the above technical solution:

[0007] Preferably, the reciprocating air punching assembly includes a piston slidably arranged inside the filter cylinder, a plug shaft arranged at one end of the piston and passing through the filter cylinder, and a reciprocating drive assembly arranged at the other end of the plug shaft, and the plug shaft is driven to reciprocate in the filter cylinder through the reciprocating motion assembly.

[0008] Preferably, a sealing filler is provided on the outer circumferential surface of the piston, and the sealing filler is used to perform a movable seal between the piston and the inner wall of the filter cylinder.

[0009] Preferably, the reciprocating drive assembly includes a drive frame, a crankshaft arranged in a running chamber in the drive frame, a crosshead slidably arranged on a slideway in the drive frame, a connecting rod with one end rotatably arranged on the crankshaft and the other end rotatably arranged on the crosshead, the crosshead is connected to the plug shaft through a flexible sleeve, the crankshaft is non-coaxially connected to the rotating shaft on the drive mechanism, and the rotating shaft is connected to an external power part.

[0010] Preferably, a rear cover is provided at the end of the filter cylinder body, a stuffing cover is provided on the rear cover, the plug shaft passes through the stuffing cover, a sealing stuffing is provided on the inner side of the stuffing cover to cooperate with the plug shaft to form a movable seal, and a stuffing gland is provided on the upper end of the stuffing cover, and the stuffing gland is used to compress the sealing stuffing.

[0011] Preferably, the inner circle lower end of the rear end is inserted into the inner circle of the filter cylinder in a stepped shape and fixed by screws, the inner circle lower end of the stuffing cover is inserted into the inner circle of the rear cover in a stepped shape and fixed by screws, and the inner circle of the stuffing gland is inserted into the stuffing cover in a stepped shape and fixed by screws.

[0012] Preferably, the air introduction component comprises an air introduction slot hole provided at the upper end of the outer ring of the filter cylinder body, and an air introduction pipe provided at the upper end of the air introduction slot hole.

[0013] Preferably, the drainage assembly comprises a drainage slot hole provided at the upper end of the outer ring of the filter cylinder body, and a drainage pipe provided at the lower end of the drainage slot hole.

[0014] Preferably, the filter assembly comprises a first front cover arranged at the end of the filter cylinder body and a first filter screen arranged on the first front cover.

[0015] Preferably, the filter assembly includes a second front cover arranged at the end of the filter cylinder, a second filter screen arranged on the second front cover, an arc plate arranged in a plurality of long grooves on the outer ring surface of the filter cylinder, and a long filter screen arranged on the arc plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention does not require shutdown to replace and clean the filter components, or an external flushing device. It purifies water or oil through the filter screen, and at the same time, draws air and discharges liquid during the reciprocating motion of the piston, discharges the filtered liquid and flushes and removes impurities on the filter screen, thereby achieving the requirement of continuous use of structural filtration and purification without blockage. It has a simple structure, convenient operation and control, and improves the filtration and purification efficiency, which meets the performance requirements of filtration and purification and improves economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a single-acting reciprocating device according to embodiment 1 of the present invention;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the liquid drainage slot and the air guide slot of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of a double-acting reciprocating device according to Example 2 of the present invention.

[0021] In the figure: 1. crankshaft; 2. connecting rod; 3. driving frame; 4. crosshead; 5. flexible sleeve; 6. plug shaft; 7. packing gland; 8. packing cover; 9. rear cover; 10. filter cylinder; 11. drain slot; 12. drain pipe; 13. air bleed pipe; 14. air bleed slot; 15. piston; 16. sealing packing; 17. sealing ring; 18. first front cover; 19. first filter screen; 20. second front cover; 21. second filter screen; 22. arc plate; 23. long filter screen. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] This embodiment is a single-acting reciprocating device, and its specific structure is described as follows:

[0027] Attached Figure 1As shown, the driving reciprocating structure: the driving end adopts a crank connecting rod 2 mechanism, a crankshaft 1 is arranged inside the driving frame 3, the crankshaft 1 is connected to the rotating shaft on the driving frame 3 in a non-coaxial manner, and the rotating shaft is connected to the external driving motor, and a crosshead 4 is slidably connected in the driving frame 3, and the two ends of the connecting rod 2 are respectively rotatably connected to the crosshead 4 and the crankshaft 1, and the crosshead 4 is connected to the shaft 6 through a flexible sleeve 5, a piston 15, and a flexible sleeve 5 is provided with a right-side expansion structure and a screw to limit the position, and a piston 15 is arranged on the right end of the plug shaft 6 to drive the piston 15 to reciprocate.

[0028] The filter cylinder 10 structure, the piston 15 is slidably arranged in the filter cylinder 10, and the middle of the outer cylindrical surface of the piston 15 is sealed by a sealing packing 16.

[0029] A packing cap 8 is provided at the end of the filter cylinder 10 near the crankshaft 1, a rear cover 9 is provided outside the packing cap 8, a sealing packing 16 is provided inside the packing cap 8 to seal with the piston 15 shaft 6, and a packing gland 7 is provided at the rear of the packing cap 8 to compress the sealing packing 16. At the same time, it can be understood from the accompanying drawings that the packing cap 8, the rear cover 9, the packing gland 7, and the filter cylinder 10 are coaxially connected, the inner circle of the packing gland 7 is inserted into the packing cap 8 in a stepped shape and fixed with screws, the inner circle of the packing cap 8 is inserted into the rear cover 9 in a stepped shape and fixed with screws, and the inner circle of the rear cover 9 is inserted into the filter cylinder 10 in a stepped shape and fixed with screws, thereby forming a tight and stable sealing structure.

[0030] An air inlet slot 14 is opened on the upper part of the filter cylinder body 10, and an air inlet pipe 13 is provided to connect the air inlet slot 14. When the piston 15 moves backward, the cavity is under negative pressure and the filtered liquid is sucked in. When it reaches the middle section, the structure introduces air through the air inlet slot 14 and increases the pressure in the cavity, pushing the purified liquid out.

[0031] The introduced air is compressed when the piston 15 moves forward, forming an airflow to flush and remove impurities adhering to the first filter screen 19.

[0032] A drainage slot 11 is provided at the lower part of the filter cylinder body 10 , and a drainage pipe 12 is provided to connect the drainage slot 11 . When the piston 15 moves to the rear side, the purified liquid in the cavity is discharged from the drainage slot 11 .

[0033] As attached Figure 2 As shown in the figure, A represents a hole, B represents a rib, and C represents a fillet. The drainage slot 11 and the air intake slot 14 are both slot structures, and the slot forms a passage for drainage or air intake. The middle rib is parallel to the movement direction of the piston 15 to prevent the sealing packing 16 on the outside of the piston 15 from expanding outward. The rounded edge inside the slot and the rounded corner structure of the rib edge prevents the sealing packing 16 from being scratched.

[0034] A first front cover 18 is provided at the right end of the filter cylinder body 10. A shallow notch is provided on the right side of the first front cover 18 to fit with the first filter screen 19. The first front cover 18 has fine holes to form a flow path with the first filter screen 19, and the non-hole part increases the strength of the filter screen.

[0035] The right side of the filter cylinder body 10 is connected to the first front cover 18 , and the disc cover and the filter cylinder body 10 are sealed by a sealing ring 17 .

[0036] Implementation process and principle of the present invention:

[0037] The crankshaft 1 at the driving end rotates to drive the connecting rod 2 to move, and the power is transmitted from the crosshead 4 to the plug shaft 6 through the flexible sleeve 5, driving the piston 15 to reciprocate in the filter cylinder 10.

[0038] When the piston 15 moves backward, a negative pressure cavity is formed. The liquid is filtered and purified by the first filter screen 19 and then sucked into the cavity of the filter cylinder 10. After the piston 15 passes through the air inlet slot 14, air is introduced into the cavity to increase the pressure and form a positive pressure, so that the filtered and purified liquid is discharged from the liquid discharge slot 11. When the piston 15 moves forward, it compresses and discharges the air in the cavity from the first filter screen 19. The high-pressure air flushes out the impurities adhering to the first filter screen 19, so that the first filter screen 19 can be used continuously.

[0039] Example 2

[0040] This embodiment is a double-acting reciprocating device, and its specific structure is described as follows:

[0041] Attached Figure 3 As shown, the driving reciprocating structure: the driving end adopts a crank connecting rod 2 mechanism, a crankshaft 1 is arranged inside the driving frame 3, the crankshaft 1 is connected to the rotating shaft on the driving frame 3 in a non-coaxial manner, and the rotating shaft is connected to the external driving motor, and a crosshead 4 is slidably connected in the driving frame 3, and the two ends of the connecting rod 2 are respectively rotatably connected to the crosshead 4 and the crankshaft 1, and the crosshead 4 is connected to the shaft 6 through a flexible sleeve 5, a piston 15, and a flexible sleeve 5 is provided with a right-side expansion structure and a screw to limit the position, and a piston 15 is arranged on the right end of the plug shaft 6 to drive the piston 15 to reciprocate.

[0042] The filter cylinder 10 structure, the piston 15 is slidably arranged in the filter cylinder 10, and the middle of the outer cylindrical surface of the piston 15 is sealed by a sealing packing 16.

[0043] A packing cap 8 is provided at the end of the filter cylinder 10 near the crankshaft 1, a rear cover 9 is provided outside the packing cap 8, a sealing packing 16 is provided inside the packing cap 8 to seal with the piston 15 shaft 6, and a packing gland 7 is provided at the rear of the packing cap 8 to compress the sealing packing 16. At the same time, it can be understood from the accompanying drawings that the packing cap 8, the rear cover 9, the packing gland 7, and the filter cylinder 10 are coaxially connected, the inner circle of the packing gland 7 is inserted into the packing cap 8 in a stepped shape and fixed with screws, the inner circle of the packing cap 8 is inserted into the rear cover 9 in a stepped shape and fixed with screws, and the inner circle of the rear cover 9 is inserted into the filter cylinder 10 in a stepped shape and fixed with screws, thereby forming a tight and stable sealing structure.

[0044] An air inlet slot 14 is opened on the upper part of the filter cylinder body 10, and an air inlet pipe 13 is provided to connect the air inlet slot 14. When the piston 15 moves backward, the cavity is under negative pressure and the filtered liquid is sucked in. When it reaches the middle section, the structure introduces air through the air inlet slot 14 and increases the pressure in the cavity, pushing the purified liquid out.

[0045] The introduced air is compressed when the piston 15 moves forward, forming an airflow to flush and remove impurities adhering to the first filter screen 19.

[0046] A drainage slot 11 is provided at the lower part of the filter cylinder body 10 , and a drainage pipe 12 is provided to connect the drainage slot 11 . When the piston 15 moves to the rear side, the purified liquid in the cavity is discharged from the drainage slot 11 .

[0047] As attached Figure 2 As shown, both the drainage slot 11 and the air intake slot 14 are slot structures, which form a passage for drainage or air intake. The middle rib is parallel to the movement direction of the piston 15 to prevent the sealing filler 16 on the outside of the piston 15 from expanding outward. The rounded edge of the inner side of the slot and the rounded corner structure of the rib edge prevents the sealing filler 16 from being scratched.

[0048] A second front cover 20 is provided at the right end of the filter cylinder body 10. A shallow notch is provided on the right side of the second front cover 20 to fit with the second filter screen 21. The second front cover 20 has fine holes to form a flow path with the second filter screen 21, and the non-hole part increases the strength of the filter screen.

[0049] A plurality of long grooves are formed on the surface of the ring of the filter cylinder 10. The main long groove is located on the opposite side of the upper air intake slot 14 and the second filter screen 21. A matching arc plate 22 is provided on the main long groove. Fine holes are formed on the surface of the arc plate 22 to fit with and support the long filter screen 23.

[0050] The first filter screen 19 and the second filter screen 21 form a flow passage of the left and right side cavities of the double-action structure.

[0051] The right side of the filter cylinder body 10 is connected to the second front cover 20 , and the disc cover and the filter cylinder body 10 are sealed by a sealing ring 17 .

[0052] Implementation process and principle of the present invention:

[0053] The crankshaft 1 at the driving end rotates to drive the connecting rod 2 to move, and the power is transmitted from the crosshead 4 to the plug shaft 6 through the flexible sleeve 5, driving the piston 15 to perform double-acting reciprocating motion in the filter cylinder body 10.

[0054] When the piston 15 moves backward, a negative pressure cavity is formed. The liquid is filtered and purified by the second filter screen 21 and then sucked into the cavity of the filter cylinder 10. After the piston 15 passes through the air inlet slot 14, air is introduced into the cavity to increase the pressure and form a positive pressure, so that the filtered and purified liquid is discharged from the liquid discharge slot 11. When the piston 15 moves forward, it compresses and discharges the air in the cavity from the second filter screen 21. The high-pressure air washes away the impurities adhering to the second filter screen 21.

[0055] The state of the left cavity alternates with that of the right cavity. When the right cavity is compressed, the left cavity forms a negative pressure cavity to absorb liquid from the long filter screen 23 on the side, and further moves through the air inlet slots 14 and the liquid discharge slots 11 to inlet air and discharge liquid. Finally, when the left cavity is compressed, the air flushes the impurities adhering to the long filter screen 23, and the filter screens can be used continuously.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reciprocating non-clogging continuous filtering and purification device, characterized in that: The invention comprises a filter cylinder (10), wherein a reciprocating air ramming assembly is arranged in the filter cylinder (10), an air induction assembly and a liquid discharge assembly are arranged on the upper and lower sides of the filter cylinder (10), and a filter assembly is arranged on the filter cylinder (10), and the ramming air generated by the reciprocating air ramming assembly flushes the filter assembly, and the negative pressure drainage liquid generated during the reciprocating process enters the liquid discharge assembly.

2. The reciprocating non-clogging continuous filtering and purifying device according to claim 1 is characterized in that: The reciprocating air punching assembly comprises a piston (15) slidably arranged inside the filter cylinder (10), a plug shaft (6) arranged at one end of the piston (15) and penetrating the filter cylinder (10), and a reciprocating drive assembly arranged at the other end of the plug shaft (6), wherein the reciprocating motion assembly drives the plug shaft (6) to perform reciprocating motion in the filter cylinder (10).

3. The reciprocating non-clogging continuous filtering and purifying device according to claim 2 is characterized in that: The outer circumferential surface of the piston (15) is provided with a sealing filler (16), and the sealing filler (16) is used to perform a movable seal between the piston (15) and the inner wall of the filter cylinder (10).

4. The reciprocating non-clogging continuous filtering and purifying device according to claim 2 is characterized in that: The reciprocating drive assembly comprises a drive frame (3), a crankshaft (1) arranged in a running chamber in the drive frame (3), a crosshead (4) slidably arranged on a slideway in the drive frame (3), and a connecting rod (2) with one end rotatably arranged on the crankshaft (1) and the other end rotatably arranged on the crosshead (4); the crosshead (4) is connected to a plug shaft (6) via a flexible sleeve (5); the crankshaft (1) is non-coaxially connected to a rotating shaft on a drive mechanism; and the rotating shaft is connected to an external power member.

5. The reciprocating non-clogging continuous filtering and purifying device according to claim 2 is characterized in that: The end of the filter cylinder (10) is provided with a rear cover (9), a packing cover (8) is provided on the rear cover (9), the plug shaft (6) passes through the packing cover (8), a sealing packing (16) is provided on the inner side of the packing cover (8) and cooperates with the plug shaft (6) to form a movable seal, and a packing gland (7) is provided on the upper end of the packing cover (8), and the packing gland (7) is used to compress the sealing packing (16).

6. The reciprocating non-clogging continuous filtering and purifying device according to claim 4 is characterized in that: The inner circle lower end of the rear end is inserted into the inner circle of the filter cylinder (10) in a stepped shape and fixed by screws, the inner circle lower end of the packing cover (8) is inserted into the inner circle of the rear cover (9) in a stepped shape and fixed by screws, and the inner circle of the packing gland (7) is inserted into the packing cover (8) in a stepped shape and fixed by screws.

7. The reciprocating non-clogging continuous filtering and purifying device according to claim 1 is characterized in that: The air introduction component comprises an air introduction slot (14) arranged at the upper end of the circular outer surface of the filter cylinder (10), and an air introduction pipe (13) arranged at the upper end of the air introduction slot (14).

8. The reciprocating non-clogging continuous filtering and purifying device according to claim 1 is characterized in that: The liquid discharge assembly comprises a liquid discharge slot hole (11) arranged at the upper end of the circular outer surface of the filter cylinder body (10), and a liquid discharge pipe (12) arranged at the lower end of the liquid discharge slot hole (11).

9. The reciprocating non-clogging continuous filtering and purifying device according to any one of claims 1 to 8, characterized in that: The filter assembly comprises a first front cover (18) arranged at the end of the filter cylinder (10) and a first filter screen (19) arranged on the first front cover (18).

10. The reciprocating non-clogging continuous filtering and purifying device according to any one of claims 1 to 8, characterized in that: The filter assembly comprises a second front cover (20) arranged at the end of the filter cylinder (10), a second filter screen (21) arranged on the second front cover (20), an arc plate (22) arranged in a plurality of long grooves on the outer surface of the circular ring of the filter cylinder (10), and a long filter screen (23) arranged on the arc plate (22).

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