Novel integrated filter

Abstract

The application discloses an integrated novel filter and relates to the technical field of filtering equipment.The technical scheme is as follows: a tank body with open upper and lower ends, an upper end cover arranged at the upper end of the tank body, and a lower end cover integrally formed at the lower end of the tank body; a sealing assembly is further arranged inside the tank body and close to the upper end; the sealing assembly is horizontally arranged and comprises a bottom plate integrally connected with the inner wall of the tank body, a detachable cover plate arranged above the bottom plate, and a silica gel plate arranged between the bottom plate and the cover plate; a filter screen is further vertically arranged between the bottom plate and the silica gel plate; a plurality of locking members penetrating through the cover plate are arranged above the cover plate, and the locking members can press the cover plate towards the bottom plate direction. According to the technical scheme, the sealing property between the filter screen and the bottom plate can be improved, the filtrate is prevented from being polluted by the filter residue in the raw material liquid, the downstream filtering system is prevented from being blocked, and the use amount of filter material is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtering equipment, in particular to an integrated novel filter. BACKGROUND

[0002] Filtering is an operation that liquid (or gas) in suspension (or containing solid particles) is filtered through a medium under the action of a driving force or other external force, and solid particles and other substances are intercepted by the filtering medium, so that the solid and other substances are separated from the liquid (or gas). The filtering equipment can be divided into gravity filter, pressure filter and vacuum filter according to the filtering driving force; can be divided into granular medium filter, filter cloth medium filter, porous ceramic medium filter and semi-permeable membrane medium filter according to the nature of the filtering medium; and can be divided into intermittent filter and continuous filter according to the operation method.

[0003] In the current egg yolk lecithin extraction process, the raw material used is egg yolk powder. When the egg yolk powder is filtered after extraction, it is difficult to filter. Since the egg yolk powder is in a very fine powder state, and the flowability of the wet egg yolk powder is very poor, the filter screen is easily blocked during the filtering process, and the filtering is slow. Therefore, we change the traditional filtering method and use vacuum filtering, which can realize rapid and efficient filtering. However, the sealing performance of the filter is very high for vacuum filtering. However, the filter tank used at present often has leakage problems, the raw material liquid is mixed with the filtrate, the filtrate is contaminated by the filter residue in the raw material liquid, the downstream filtration system is blocked, the use amount of filter material is increased, and the time cost, manpower and material resources of production are increased. SUMMARY

[0004] The purpose of the present application is to provide an integrated novel filter to solve the problem that the sealing structure design of the existing filter tank is not reasonable, the filter residue in the raw material liquid leaks, the downstream filtration system is blocked, and the use amount of filter material is increased.

[0005] To achieve the above purpose, the basic technical scheme of the present application is as follows: an integrated novel filter, comprising an open tank body at the upper and lower ends, an upper end cover located at the upper end of the tank body, and a lower end cover integrally formed with the tank body at the lower end of the tank body, the tank body is further provided with a sealing assembly inside the tank body close to the upper end, the sealing assembly is horizontally arranged, the sealing assembly comprises a bottom plate integrally connected with the inner wall of the tank body, a detachable cover plate above the bottom plate, and a silica gel plate between the bottom plate and the cover plate, a filter screen is further vertically arranged between the bottom plate and the silica gel plate, a plurality of locking members penetrating through the cover plate are arranged above the cover plate, and the locking members can press the cover plate towards the bottom plate.

[0006] The principle of the scheme is: the technical scheme cooperates with the vacuum suction mode to filter, needs to keep the pressure difference between the two sides of the filter screen, keeps the filtrate in a sealed state, so that the filtering is smoothly carried out, the silica gel plate is located above the edge of the filter screen, when the cover plate presses the silica gel plate downward, the silica gel plate will be deformed, then the silica gel plate will be closely attached to the edge of the filter screen, preventing the filter residue in the raw material liquid from polluting the filtrate through the edge of the filter screen, the locking piece penetrates the cover plate and the bottom plate to be connected, and the rotation of the locking piece can realize the opening and closing of the cover plate.

[0007] Further, the cover plate, the silica gel plate and the bottom plate are respectively provided with a plurality of circular ports in the same vertical direction, and the circular ports are sequentially a first circular port, a second circular port and a third circular port, the upper end opening of the filter screen is communicated with the third circular port, and the bottom end of the filter screen extends to the lower end surface of the tank body.

[0008] By adopting the above technical scheme, the upper end opening edge of the filter screen is clamped at the third circular port, the upper end opening of the filter screen is sequentially the third circular port, the second circular port and the first circular port from top to bottom, the raw material liquid enters the filter screen from the first circular port for filtering, and the silica gel plate is pressed downward to ensure the sealing between the filter screen and the third circular port.

[0009] Further, the hole diameters of the first circular port, the second circular port and the third circular port are sequentially the second circular port, the first circular port and the third circular port from small to large.

[0010] By adopting the above technical scheme, the hole diameter of the second circular port is smaller than the hole diameters of the first circular port and the third circular port, so that the silica gel plate can be closely attached to the third circular port and the first circular port, and the sealing between the second circular port and the first circular port and between the second circular port and the third circular port is ensured.

[0011] Further, the inner wall of the first circular port is fixedly connected with an annular circle strip, and the upper surface of the circle strip is higher than the upper surface of the cover plate, and the lower surface of the circle strip is lower than the lower surface of the cover plate.

[0012] By adopting the above technical scheme, the circle strip is closely attached to the inner wall of the first circular port, the structure of the circle strip plays a limiting role, the inner diameter of the first circular port is smaller than the inner diameter of the third circular port, when the circle strip applies pressure to the silica gel plate, the circle strip indirectly clamps the third circular port through the silica gel plate, so that the third circular port is limited by the silica gel plate, the silica gel plate is limited in the direction of the third circular port, the movement of the silica gel plate is prevented, and when the cover plate applies downward pressure, the silica gel plate will deform to a certain extent, so that the upper edge of the filter screen clamped in the third circular port is closely attached to the silica gel plate, thereby improving the sealing between the third circular port and the filter screen.

[0013] Further, the cover plate is also vertically provided with a plurality of through holes, and the locking member is used to press the bottom plate, the silica gel plate and the cover plate through the through holes, and the locking member comprises a threaded rod which is vertically integrated with the bottom plate and a horn nut which is matched with the threaded rod, and the horn nut is located above the cover plate and is threadedly connected with the threaded rod.

[0014] By adopting the above technical scheme, the through holes are uniformly distributed on the cover plate, and the through holes are located between the adjacent two first circular ports, so that the cover plate uniformly applies pressure downward, and the sealing effect of the silica gel plate is consistent. In addition, by adjusting the tightness of the horn nut, the cover plate and the silica gel plate can be disassembled and fastened.

[0015] Further, the longitudinal section between the adjacent two third circular ports is a "convex" structure, and the upper edge of the filter screen can be matched with the third circular port, so that the upper edge of the filter screen is clamped between the silica gel plate and the bottom plate. An annular gasket with a right angle longitudinal section is also arranged between the filter screen and the bottom plate, and the gasket can assist the adhesion between the filter screen and the bottom plate.

[0016] By adopting the above technical scheme, the annular gasket is matched with the third circular port and the filter screen, which can transition the clamping between the filter screen and the third circular port, and further improve the sealing between the filter screen and the third circular port.

[0017] Further, the upper end of the upper head is vertically fixed with a lifting assembly, and the lifting assembly can move the upper head in the vertical direction.

[0018] By adopting the above technical scheme, the lifting assembly is integrally formed with the upper head, and the lifting assembly comprises a threaded rod which is fixed with the upper head and a hand wheel which drives the threaded rod to rotate. The up-down movement of the upper head can be realized by rotating the hand wheel, the opening and closing of the upper head can be achieved, the operation is convenient, and the labor is saved.

[0019] Further, a rocker arm is vertically fixed to the outer side wall of the tank body near the upper port, one end of the rocker arm is fixed with the tank body, and the other end is fixed with the lifting assembly.

[0020] By adopting the above technical scheme, the rocker arm can rotate in the horizontal direction, and then drive the upper head to move away from the side, so as to realize the opening and closing between the upper head and the tank body, and facilitate the cleaning and maintenance of the tank body.

[0021] Further, a locking device is arranged on the outer side wall of the tank body near the upper head, the locking device comprises a screw rod which can rotate in the vertical direction, a limiting piece is threadedly connected with the screw rod, a clamping groove is arranged on the side wall of the limiting piece, and the clamping groove can press the upper head downward from above.

[0022] By adopting the technical scheme, when the upper head is aligned and attached to the upper end of the tank body, the locking device is matched and buckled to realize the sealed connection between the upper head and the tank body, the locking device has multiple sets and the multiple sets of locking devices are evenly distributed on the outer lateral wall of the tank body, so that the downward pressure of the upper head is evenly distributed, which is more conducive to the sealing of the tank body.

[0023] Further, the outer lateral wall of the tank body is provided with a feed inlet near the upper end, and the feed inlet is located above the cover plate in the vertical direction; and the lower head is provided with a liquid outlet at the middle of the bottom end.

[0024] By adopting the technical scheme, the feed inlet facilitates the filling of raw liquid into the filter screen for filtration, and the liquid outlet facilitates the communication with the vacuum suction equipment for filtration.

[0025] In summary, compared with the original filter tank, the beneficial effects of the present application are as follows: 1. The silica gel plate is added between the cover plate and the bottom plate, and the silica gel plate is deformed downward to tightly contact the upper surface of the filter screen, thereby improving the sealing performance of the contact position between the filter screen and the bottom plate. 2. The annular gasket is added between the filter screen and the bottom plate, and the gasket is tightly contacted with the filter screen and the bottom plate, which can further improve the sealing performance between the filter screen and the bottom plate based on the silica gel plate. 3. The design of the sealing assembly avoids the leakage of filter residue in the raw liquid, which causes the blockage of the rear-end filtration system and the increase of filter material usage. At the same time, by increasing the number of filter screens and the amount of filter material of the filter, the filtration efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application;

[0027] Figure 2 is a schematic diagram of the longitudinal section of embodiment 1 of the present application;

[0028] Figure 3 is a top view of the overall structure of embodiment 1 of the present application;

[0029] Figure 4 is a schematic diagram of the top view of the internal structure of the tank body of embodiment 1 of the present application;

[0030] Figure 5 is a schematic diagram of the top view of the internal structure of the tank body of embodiment 2 of the present application;

[0031] Figure 6 is a schematic diagram of the longitudinal section structure of the sealing area in embodiment 1 of the present application;

[0032] Figure 7 is a schematic diagram of the longitudinal section structure of the sealing area in embodiment 1 of the present application;

[0033] Figure 8 is the structure diagram of the locking device in embodiment 1 of the present application.

[0034] In the figure: 1, tank body; 2, upper end cover; 3, lower end cover; 4, bottom plate; 5, cover plate; 6, silica gel plate; 7, filter screen; 8, locking piece; 9, first round port; 10, second round port; 11, third round port; 12, handle; 13, round bar; 14, through hole; 15, annular gasket; 16, lifting assembly; 17, rocker arm; 18, locking device; 19, clamping groove; 20, feed port; 21, liquid outlet; 22, support column; 23, emptying port; 24, screw; 25, limiting piece. DETAILED DESCRIPTION

[0035] The following is further described in detail by Figures 1-8 and the detailed description:

[0036] Embodiment 1

[0037] The integrated novel filter comprises a tank body 1 with openings at the upper and lower ends, an upper end cover 2 located at the upper end of the tank body 1, and a lower end cover 3 integrally formed with the tank body 1 at the lower end of the tank body 1. The upper end cover 2 and the lower end cover 3 are both bowl-shaped structures, and a sealing assembly can be detachably connected inside the tank body 1 near the upper end. The sealing assembly is horizontally arranged and comprises a bottom plate 4 integrally formed with the inner wall of the tank body 1, a cover plate 5 detachably arranged above the bottom plate 4, and a silica gel plate 6 between the bottom plate 4 and the cover plate 5. A filter screen 7 is also vertically clamped and installed between the bottom plate 4 and the silica gel plate 6. The bottom plate 4 receives the upper end surface edge of the filter screen 7, and the filter screen 7 is arranged with its bottom portion extending downward near the lower end opening of the tank body 1. A plurality of locking pieces 8 are detachably installed above the cover plate 5. The locking piece 8 comprises a threaded rod vertically penetrating the cover plate 5 and integrally formed with the bottom plate 4, and a horn nut matched with the threaded rod. The horn nut is located above the cover plate 5 and is threadedly connected with the threaded rod. The locking piece 8 can press the cover plate 5 and the silica gel plate 6 towards the bottom plate 4.

[0038] The cover plate 5, the silica gel plate 6 and the bottom plate 4 are respectively perforated with a plurality of round openings in the same vertical direction, which are sequentially a first round opening 9, a second round opening 10 and a third round opening 11, and each of the first round opening 9, the second round opening 10 and the third round opening 11 has six openings. The upper end opening of the filter screen 7 is communicated with the third round opening 11, and the upper end edge of the filter screen 7 is in the form of a ring-shaped plate structure, and the bottom end of the filter screen 7 extends towards the lower end surface of the tank body 1. The upper end opening edge of the filter screen 7 is clamped at the third round opening 11, and the upper end opening of the filter screen 7 is sequentially the third round opening 11, the second round opening 10 and the first round opening 9 from top to bottom, and the raw material liquid enters the filter screen 7 for filtration from the first round opening 9, and the silica gel plate 6 is pressed downwards to ensure the sealing between the filter screen 7 and the third round opening 11. The diameters of the first round opening 9, the second round opening 10 and the third round opening 11 are sequentially the second round opening 10, the first round opening 9 and the third round opening 11 from small to large. The diameter of the second round opening 10 is smaller than the diameters of the first round opening 9 and the third round opening 11, so that the silica gel plate 6 can be closely attached to the third round opening 11 and the first round opening 9, and the sealing between the second round opening 10 and the first round opening 9 and between the second round opening 10 and the third round opening 11 is ensured. The inner wall of the first round opening 9 is also tightly welded with a ring-shaped circle strip 13, and the upper surface of the circle strip 13 is higher than the upper surface of the cover plate 5, and the lower surface of the circle strip 13 is lower than the lower surface of the cover plate 5. The circle strip 13 is closely attached to the inner wall of the first round opening 9, the structure of the circle strip 13 plays a limiting role, and the circle strip 13 can further deform the silica gel plate 6 below the circle strip 13. In combination with the fact that the inner diameter of the first round opening 9 is smaller than the inner diameter of the third round opening 11, when the circle strip 13 applies pressure to the silica gel plate 6, the circle strip 13 indirectly clamps the third round opening 11 through the silica gel plate 6, so that the silica gel plate 6 limits the third round opening 11, and at the same time, the third round opening 11 limits the silica gel plate 6, so as to ensure that the silica gel plate 6 does not move, and when the cover plate 5 applies downward pressure, the silica gel plate 6 will deform to a certain extent, so that the upper edge of the filter screen 7 clamped at the third round opening 11 is closely attached to the silica gel plate 6, thereby improving the sealing between the third round opening 11 and the filter screen 7. The cover plate 5 is also vertically perforated with five through holes 14, and the locking member 8 tightly presses the bottom plate 4, the silica gel plate 6 and the cover plate 5 together through the through holes 14. The through holes 14 are uniformly distributed on the cover plate 5, and the through holes 14 are arranged between the adjacent two first round openings 9, so as to ensure that the cover plate 5 uniformly applies downward pressure, and then the sealing effect of the silica gel plate 6 is consistent.

[0039] The longitudinal section between two adjacent third circular openings 11 is a "convex" structure, and the upper edge of the filter screen 7 can match the third circular opening 11, so as to clamp the upper edge of the filter screen 7 between the silica gel plate 6 and the bottom plate 4. An annular gasket 15 with a right angle longitudinal section is further arranged between the filter screen 7 and the bottom plate 4, which can assist the close fit between the filter screen 7 and the bottom plate 4. The annular gasket 15 is also matched with the third circular opening 11 and the filter screen 7, which can transition the clamping between the filter screen 7 and the third circular opening 11, and further improve the sealing between the filter screen 7 and the third circular opening 11.

[0040] The upper end of the upper head 2 is integrally connected with a vertical lifting assembly 16, which can move the upper head 2 in the vertical direction. The lifting assembly 16 includes a threaded rod and a hand wheel. The threaded rod is integrally formed with the upper head 2, and the hand wheel is connected with the threaded rod through the threaded hole 14 on the hand wheel. The outer wall of the tank body 1 is vertically welded with a rocker arm 17 near the upper port. One end of the rocker arm 17 is welded with the tank body 1, and the other end is threadedly connected with the lifting assembly 16. When it is necessary to open or close the tank body 1, the upper head 2 can be lifted upward by rotating the hand wheel. At this time, the rocker arm 17 temporarily supports the weight of the upper head 2. The rocker arm 17 can rotate in the horizontal direction, thereby moving the upper head 2 away from the side, realizing the opening and closing between the upper head 2 and the tank body 1, facilitating the cleaning and maintenance of the tank body 1, and being convenient to operate without the need to design additional space for placing the upper head 2. Eight matched locking devices 18 are welded on the outer wall of the tank body 1. The locking device 18 includes a screw rod 24 which can rotate in the vertical direction and a limiting piece 25 which is threadedly connected with the screw rod 24. The side wall of the limiting piece 25 is provided with a clamping groove 19 which is downwardly opened. The structure of the clamping groove 19 is matched with the opening of the upper head 2. When the upper head 2 is aligned and attached with the upper port of the tank body 1, eight sets of locking devices 18 are matched and buckled, realizing the sealed connection between the upper head 2 and the tank body 1. The eight sets of locking devices 18 are evenly distributed on the outer wall of the tank body 1, so that the downward pressure of the upper head 2 is evenly distributed, which is more conducive to the sealing of the tank body 1. The locking device 18 is connected with the tank body 1 through the base welded on the side wall of the tank body 1. The base includes a U-shaped frame with an upward opening and a horizontal rod which is arranged through the two side walls of the U-shaped frame. One end of the screw rod 24 is sleeved on the horizontal rod, realizing the rotation of the horizontal rod in the vertical direction. The end of the limiting piece 25 away from the base is processed into a ring structure, which is convenient for use of the locking device 18.

[0041] The tank body 1 is provided with an inlet 20 near the upper end of the outer side wall, and the inlet 20 is located above the cover plate 5 in the vertical direction; the lower end of the lower head 3 is integrally cast with a liquid outlet 21; the inlet 20 facilitates the filling of raw liquid into the tank body 1, and then into the filter screen 7 for filtration; the liquid outlet 21 facilitates communication with a vacuum pumping device for filtration. The upper head 2 is also provided with a vent 23, which is closed when the raw liquid is filled into the filter tank, so as to ensure that the amount of each filtration is the same. When the filling of raw liquid into the filter tank is completed, the vent 23 is opened, and the vacuum pump can be used to smoothly perform the filtration. The tank body 1 is also welded with support columns 22 for supporting the tank body 1. The support columns 22 are four in total and are evenly distributed in several directions of the tank body 1. The bottom end of the support column 22 is also provided with a round hole for facilitating the fixation of the support column 22 to the ground. The upper surface of the cover plate 5 is also welded with a plurality of vertically arranged handles 12. When the tank body 1 needs to be cleaned and maintained, the cover plate 5 can be easily removed through the handles 12, which is convenient and labor-saving.

[0042] The technical solution needs to be combined with the vacuum suction method for filtration, and the pressure difference between the inside and outside of the filter screen 7 needs to be maintained to keep the filtrate in a sealed state, so as to smoothly perform the filtration. The silica gel plate 6 is located above the edge of the filter screen 7. When the cover plate 5 presses the silica gel plate 6 downward, the silica gel plate 6 will be deformed, and then the silica gel plate 6 will be tightly attached to the edge of the filter screen 7 to prevent the filter residue in the raw liquid from contaminating the filtrate through the edge of the filter screen 7. The locking member 8 penetrates the cover plate 5 and is connected to the bottom plate 4. Rotating the locking member 8 can realize the opening and closing of the cover plate 5. The design of the circular bar 13 can further improve the sealing performance of the contact part of the filter screen 7 and the bottom plate 4.

[0043] Example 2

[0044] The difference between example 2 and example 1 is that, as shown in Figure 5 the filter screen 7 is provided with 8 filter screens, and the corresponding first circular port 9, second circular port 10 and third circular port 11 are also 8 in total. Meanwhile, the cover plate 5 is provided with 10 sets of locking members 8. This embodiment is suitable for use when the single filtration of raw liquid is increased, and the working efficiency of single filtration is improved.

[0045] Sealing performance test

[0046] After the actual application of the technical solution, the filtrate is subjected to secondary filtration using the same filter equipment at the back end. The use of filter materials before and after the improvement (example 1) is recorded, and the results are shown in table 1.

[0047] Table 1: Filter material use

[0048]

[0049]

[0050] Conclusion: From the filter material usage before the improvement, it can be seen that the filter material needs to be replaced daily. From the filter material usage after the improvement, it can be seen that at least 2-5 days can be used for each replacement of the filter material. After the improvement, the filter material usage is reduced by 30-40% compared to before the improvement. And since 2022, compared with before, the cost is expected to be reduced by about 70,000 yuan per year.

[0051] The specific embodiments are only an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make modifications to the embodiments according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the Patent Law.

Claims

1. A novel integrated filter, comprising a tank body (1) with openings at both upper and lower ends, an upper sealing head (2) located at the upper end of the tank body (1), and a lower sealing head (3) located at the lower end of the tank body (1) and integrally formed with the tank body (1), characterized in that: A sealing assembly is further provided inside the tank body (1) near the upper end. The sealing assembly is arranged transversely and comprises a bottom plate (4) integrally connected to the inner wall of the tank body (1), a detachable cover plate (5) above the bottom plate (4), and a silicone plate (6) between the bottom plate (4) and the cover plate (5). A filter screen (7) is further vertically provided between the bottom plate (4) and the silicone plate (6). A plurality of locking members (8) penetrating the cover plate (5) are provided above the cover plate (5). The locking members (8) can press the cover plate (5) and the silicone plate (6) toward the bottom plate (4). The cover plate (5), the silica gel plate (6), and the bottom plate (4) are respectively provided with a plurality of circular openings in the same vertical direction, namely the first circular opening (9), the second circular opening (10), and the third circular opening (11). The upper opening of the filter screen (7) is connected to the third circular opening (11), and the bottom end of the filter screen (7) extends toward the bottom end surface of the tank body (1); The apertures of the first circular opening (9), the second circular opening (10) and the third circular opening (11) are arranged in descending order: the second circular opening (10), the first circular opening (9), the third circular opening (11); The longitudinal section between two adjacent third circular openings (11) is a "convex" structure, and the upper edge of the filter screen (7) can match the third circular opening (11), so that the upper edge of the filter screen (7) is clamped between the silica gel plate (6) and the bottom plate (4); an annular gasket (15) with a right-angled longitudinal section is also provided between the filter screen (7) and the bottom plate (4), and the gasket can assist in the fitting between the filter screen (7) and the bottom plate (4).

2. The integrated novel filter according to claim 1, characterized in that: An annular ring strip (13) is fixedly connected to the inner wall of the first circular opening (9), and the upper surface of the ring strip (13) is higher than the upper surface of the cover plate (5), and the lower surface of the ring strip (13) is lower than the lower surface of the cover plate (5).

3. The integrated novel filter according to claim 1, characterized in that: The cover plate (5) is also vertically penetrated by a plurality of through holes (14), and the locking member (8) presses the base plate (4), the silicone plate (6) and the cover plate (5) through the through holes (14). The locking member (8) includes a threaded rod vertically penetrated by the through holes (14) and integrally formed with the base plate (4) and a bull horn nut matched with the threaded rod. The bull horn nut is located above the cover plate (5) and is threadedly connected to the threaded rod.

4. The integrated novel filter according to claim 1, characterized in that: A lifting assembly (16) is also vertically fixed to the middle of the top end of the upper sealing head (2), and the lifting assembly (16) can enable the upper sealing head (2) to move in a vertical direction.

5. The integrated novel filter according to claim 1, characterized in that: A rocker arm (17) is vertically fixed to the outer wall of the tank body (1) near the upper port. One end of the rocker arm (17) is fixed to the tank body (1), and the other end is fixed to the lifting assembly (16).

6. The integrated novel filter according to claim 1, characterized in that: A locking device (18) is provided on the outer wall of the tank body (1) near the upper sealing head (2). The locking device (18) comprises a screw (24) that can rotate in a vertical direction. A limit member (25) is threadedly connected to the screw (24). A clamping groove (19) is provided on the side wall of the limit member (25). The clamping groove (19) can press the upper sealing head (2) downward from above.

7. The integrated novel filter according to claim 1, characterized in that: A feed port (20) is provided through the outer wall of the tank body (1) near the upper port, and the feed port (20) is located above the cover plate (5) in the vertical direction; a liquid outlet (21) is provided in the middle of the bottom end of the lower head (3).

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