Frame filter screen

Abstract

The utility model discloses a frame filter screen which comprises a peripheral frame and an internal reinforcing frame, the internal reinforcing frame comprises transverse rods and longitudinal rods which are arranged in a crossed mode, a plurality of reinforcing rods are further arranged in the internal frame, and the reinforcing rods are crossed in the transverse direction and the longitudinal direction. The peripheral frame and the internal reinforcing frame are internally coated with a reinforcing skeleton; the reinforcing framework adopts a hollow pipe or a solid pipe; a metal reinforcing rib is arranged in the reinforcing rod; a filter screen is fixed to the top face of the peripheral frame, a supporting net is arranged at the bottom of the filter screen, and the supporting net and the filter screen are fixed to the top face of the peripheral frame in a hot-pressing mode. According to the structural arrangement, the peripheral frame and the internal reinforcing frame are combined, the reinforcing framework is arranged in the peripheral frame and the internal reinforcing frame, and the metal reinforcing ribs are arranged in the reinforcing rods, so that the overall strength of the reinforced frame can be effectively improved; the supporting net is arranged at the bottom of the filtering net, the filtering net is used for improving the filtering effect, and the supporting net only provides a supporting effect for keeping the top face of the filtering net flat.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter screen technical field, especially relate to a frame filter screen. BACKGROUND

[0002] In the oil field oil well pumping operation, in order to ensure normal operation of oil well, it needs to be equipped with well flushing fluid to supply to the inside of oil well in the working condition, and the well flushing fluid is mixed with mud and sand after being pumped to the ground, in order to avoid waste and reduce the cost of oil well operation, the sand in the well flushing fluid is usually separated by using a screen, and the separated well flushing fluid can be further recycled.

[0003] The main structure of the existing frame filter screen is a metal or non-metal frame, a screen cloth is arranged on the top surface of the frame, and the screen is shaken by an external vibration mechanical drive to realize the screening and separation of the well flushing fluid, and the specific structure of the filter screen can refer to the utility model patent publication CN216500610U.

[0004] The filter screen disclosed above has structural defects, which are as follows: 1. the overall strength of the frame structure of the screen is not enough, when a large amount of well flushing fluid falls on the screen, the screen will be deformed and bent if not filtered in time, and the screen will crack or be damaged when bent with high-frequency vibration; 2. the screen uses a multi-layer structure, but the material leakage rate is slow, which causes the well flushing fluid to be unable to drop quickly, thereby reducing the screening efficiency.

[0005] In summary, in order to solve the actual problems existing in the prior art, the best way is to improve the overall structure of the existing frame filter screen, so that the structural stability is improved, the strength can be maintained during long-time high-frequency vibration, and the filtering effect is improved on the basis of ensuring the strength. UTILITY MODEL CONTENTS

[0006] In view of the above-mentioned defects of the prior art, the utility model provides a frame filter screen, which adopts a frame structure, a metal skeleton is arranged inside the frame structure to improve the supporting strength, and a multi-layer structure is used to support the screen when the screen is arranged, so as to improve the screening effect on the basis of ensuring the fixing strength of the top screen.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A frame filter screen comprises a peripheral frame and an internal reinforcing frame, the internal reinforcing frame comprises transverse rods and longitudinal rods arranged in cross, and a plurality of reinforcing rods are arranged inside the internal frame and cross in the transverse and longitudinal directions.

[0009] The peripheral frame and the internal reinforcing frame are coated with a reinforcing skeleton; the reinforcing skeleton is a hollow pipe or a solid pipe.

[0010] The reinforcing rod is internally provided with a metal reinforcing rib;

[0011] The top surface of the peripheral frame is fixed with a filter screen, and the bottom of the filter screen is provided with a supporting screen, which is hot-pressed and fixed on the top surface of the peripheral frame.

[0012] The filter screen is provided in multiple layers, and the topmost layer is a screen with the finest mesh size, and the mesh size decreases successively from the top to the bottom.

[0013] The internal reinforcing frame comprises at least one longitudinal rod, which is provided in an integrated structure with the transverse rod.

[0014] The top surface of the peripheral frame or the internal reinforcing frame is provided with a sunken groove, and the filter screen is fixed on the top surface of the sunken groove.

[0015] The sunken groove is a T-shaped groove or a trapezoidal groove, which is used to accommodate materials during hot melting and pressing, and prevent the top surface of the peripheral frame or the internal reinforcing frame from being deformed.

[0016] The top of the internal reinforcing frame is provided with a variable-diameter supporting part, the lower part of which is a thick-diameter end, and the cross-sectional area of the thick-diameter end is larger than that of the variable-diameter supporting part; and the joint between the variable-diameter supporting part and the thick-diameter end is provided in an inclined surface.

[0017] The top of the reinforcing rod is provided with a variable-diameter supporting part, the lower part of which is a thick-diameter end, and the cross-sectional area of the thick-diameter end is larger than that of the variable-diameter supporting part; and the joint between the variable-diameter supporting part and the thick-diameter end is provided in an inclined surface.

[0018] The assembling edge of the peripheral frame is provided with a sealing gasket, and the sealing gasket is used to realize the sealing between the adjacent filter screens of the frames when the adjacent filter screens of the frames are horizontally extruded and fixed.

[0019] The sealing gasket is provided in a semicircular structure, and is internally provided with a ventilation hole.

[0020] The present invention has the following beneficial effects: the present invention includes an outer frame and an inner reinforcement frame, the inner reinforcement frame includes cross-arranged transverse rods and longitudinal rods, and a plurality of reinforcement rods are further arranged inside the inner frame, the plurality of reinforcement rods being cross-arranged in the transverse and longitudinal directions; the outer frame and the inner reinforcement frame are covered with a reinforcement skeleton; the reinforcement skeleton is made of a hollow tube or a solid tube; metal reinforcement ribs are arranged inside the reinforcement rods; a filter screen is fixed on the top surface of the outer frame, a support net is arranged at the bottom of the filter screen, and the support net and the filter screen are hot-pressed and fixed to the top surface of the outer frame. Through the above structural arrangement, the outer frame and the inner reinforcement frame are combined and a reinforcement skeleton is arranged inside, and metal reinforcement ribs are arranged inside the reinforcement rods, which can effectively improve the overall strength of the present invention; by arranging a support net at the bottom of the filter screen, the filter screen is used to improve the filtering effect, and the support net only provides a supporting function to keep the top surface of the filter screen flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the top surface structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model after removing the filter screen from the top surface;

[0024] Figure 3 This is a side view of the internal structure of the utility model (long side);

[0025] Figure 4 This is a side view of the internal structure of the utility model (short side);

[0026] Figure 5 Schematic diagram of the three-dimensional structure of the reinforcement skeleton;

[0027] Figure 6 for Figure 3 Schematic diagram of the structural development of the middle A area;

[0028] Figure 7 for Figure 4 Schematic diagram of the developed structure of the middle B area;

[0029] In the figure, 1. outer frame, 11. sunken groove, 2. filter screen, 3. reinforcement frame, 31. horizontal square tube, 32. longitudinal square tube, 4. internal reinforcement frame, 41. horizontal rod, 42. longitudinal rod, 5. reinforcement rod, 51. variable diameter support part, 52. thick diameter end, 53. metal reinforcement rib, 54. inclined surface, 6. sealing gasket, 7. support net. DETAILED DESCRIPTION

[0030] The present invention is further described below through specific implementation methods. The following description is only for illustrative purposes. Those skilled in the art can make further structural improvements based on the following description. The scope of protection of this patent shall be based on the scope recorded in the claims.

[0031] Example 1:

[0032] A frame filter screen, such as Figure 1 、 2 As shown, it includes an outer frame 1 and an inner reinforcement frame 4, and the outer frame 1 and the inner reinforcement frame 4 are arranged as an integrated structure.

[0033] The internal reinforcement frame 4 includes transverse rods 41 and longitudinal rods 42 that are cross-arranged. The longitudinal rods 42 are evenly arranged inside the internal reinforcement frame 4 .

[0034] A plurality of reinforcing rods 5 are also provided inside the internal frame, and the plurality of reinforcing rods 5 cross in the transverse and longitudinal directions; the outer frame 1 and the internal reinforcing frame 4 are covered with a reinforcing frame 3; the reinforcing frame 3 is made of a hollow tube or a solid tube; in this embodiment, the reinforcing frame 3 is made of a hollow tube, which is welded into a square frame by the hollow tube. Figure 5 As shown, during the manufacturing process, the aforementioned reinforcing frame 3 constitutes the inner frame of the outer frame 1 and the inner reinforcing frame 4, and the frame filter screen is formed by fixing the outer surface with rubber or polyurethane material.

[0035] Furthermore, the internal reinforcement frame 4 includes at least one longitudinal rod 42, which is integrated with the transverse rod 41. In this embodiment, there are three transverse rods 41 and one longitudinal rod 42, which can improve the overall strength of the frame filter screen in the transverse and longitudinal directions.

[0036] Furthermore, the present invention also provides a metal reinforcement rib 53 inside the reinforcement rod 5, such as Figure 6 、 7 As shown, the metal reinforcing ribs 53 run through the reinforcing rods 5. The utility model contains multiple reinforcing rods 5, and the several metal reinforcing ribs 53 inside the frame filter screen form an integrally reinforced mesh structure, which effectively improves the overall strength of the frame filter screen in the horizontal state.

[0037] The utility model discloses a filter screen 2 is fixed on the top surface of the peripheral frame 1, the bottom of filter screen 2 is provided with the support net 7, support net 7 and filter screen 2 hot -pressing fixed on the top surface of peripheral frame 1, the utility model discloses a filter screen is designed as multilayer structure, in this embodiment, filter screen 2 is single -layer setting, the bottom of filter screen 2 is support net 7, the mesh count of support net 7 is usually greater than the mesh count of filter screen ten times or more, and the function of support net 7 is used for supporting filter screen 2, and the plane support of filter screen 2 is realized through support net 7.

[0038] On the basis of the above embodiment, when the filter screen 2 adopts multi-layer filtering, the topmost filter screen is designed as the screen with the finest mesh number, and the mesh number of the plurality of filter screens 2 decreases in turn from the top to the bottom.

[0039] In the forming, the filter screen 2 and the support net 7 are attached to an integrated body and laid on the top surface of the peripheral frame 1 or the internal reinforcing frame 4, and when laid and fixed, in order to improve the fixing strength and stability of the filter screen 2 and the support net 7, as shown in the drawings, the utility model is provided with a sunken groove 11 on the top surface of the peripheral frame 1, the filter screen 2 is fixed on the top surface of the sunken groove 11, and the sunken groove 11 is a T-shaped groove, which is used to realize the storage of materials in the hot melting and pressing state. Figure 6 The peripheral frame 1 is made of polyurethane material, which has good fluidity in the hot melting state, and when heated, the materials flow to the inside and fill into the sunken groove 11 while extruding the filter screen 2 and the support net 7, so that the deformation of the top surface of the peripheral frame 1 or the internal reinforcing frame 4 is prevented. Through the above sunken groove 11 design, the appearance effect of the utility model can be improved, which is beneficial to commercialization.

[0040] Embodiment 2:

[0041] The top of the internal reinforcing frame 4 is provided with a variable-diameter support part 51, as shown in the drawings, the lower part of the variable-diameter support part 51 is a thick-diameter end 52, the cross-sectional area of the thick-diameter end 52 is greater than that of the variable-diameter support part 51, and the combination part of the variable-diameter support part 51 and the thick-diameter end 52 is provided with an inclined surface 54. Figure 6 、 7 The same design principle is that the top of the reinforcing rod 5 is also provided with a variable-diameter support part 51, the lower part of the variable-diameter support part 51 is a thick-diameter end 52, the cross-sectional area of the thick-diameter end 52 is greater than that of the variable-diameter support part 51, and the combination part of the variable-diameter support part 51 and the thick-diameter end 52 is provided with an inclined surface 54.

[0042] The same design principle is that the top of the reinforcing rod 5 is also provided with a variable-diameter support part 51, the lower part of the variable-diameter support part 51 is a thick-diameter end 52, the cross-sectional area of the thick-diameter end 52 is greater than that of the variable-diameter support part 51, and the combination part of the variable-diameter support part 51 and the thick-diameter end 52 is provided with an inclined surface 54.

[0043] The position combined with the variable-diameter supporting part 51 is the supporting net 7 and the filter net 2, the top section of the internal reinforcing frame 4 and the reinforcing rod 5 is refined, the blanking efficiency of the supporting net 7 and the filter net 2 can be effectively improved, and the slope 54 arranged below the variable-diameter supporting part 51 can promote the downward flow of liquid, improve the falling speed of the well washing liquid, and avoid the accumulation of materials in the area.

[0044] The assembly edge of the peripheral frame 1 is further provided with a sealing gasket 6, the long edges of the adjacent frame filter screen are in contact when the frame filter screen is installed, therefore the sealing gasket 6 is arranged on one side of the long edge, and the sealing and flexible fitting between the adjacent frame filter screens are realized through the sealing gasket 6 when the adjacent frame filter screens are horizontally pressed and fixed.

[0045] As shown in Figure 7 The sealing gasket 6 is in a semicircular structure of rubber material and is provided with a ventilation hole.

[0046] In conclusion, the overall strength of the utility model can be effectively improved through the combination of the peripheral frame 1 and the internal reinforcing frame 4 and the internal arrangement of the reinforcing framework 3 and the metal reinforcing rib 53 in the reinforcing rod 5; the supporting net 7 is arranged at the bottom of the filter net 2, the filter net 7 is used for horizontally supporting the filter net 2, and the filtering effect 7 is improved.

Claims

1. A frame filter screen, characterized by: It includes an outer frame and an internal reinforcement frame, wherein the internal reinforcement frame includes cross-arranged transverse rods and longitudinal rods, and a plurality of reinforcement rods are further arranged inside the internal frame, and the plurality of reinforcement rods cross in the transverse and longitudinal directions; The outer frame and the internal reinforcement frame are covered with a reinforcement frame; the reinforcement frame is made of a hollow tube or a solid tube; The reinforcing rod is provided with metal reinforcing ribs inside; A filter screen is fixed on the top surface of the peripheral frame, a support screen is provided at the bottom of the filter screen, and the support screen and the filter screen are fixed on the top surface of the peripheral frame by hot pressing.

2. A frame filter screen according to claim 1, characterized in that: The filter screen is arranged in multiple layers, with the top being the screen with the finest mesh, and the meshes decreasing from the top downwards.

3. The frame filter screen according to claim 1, characterized in that: The internal reinforcement frame includes at least one longitudinal rod, which is integrated with the transverse rods.

4. The frame filter screen according to claim 1, characterized in that: A sunken groove is provided on the top surface of the peripheral frame or the internal reinforcement frame, and the filter screen is fixed on the top surface of the sunken groove.

5. A frame filter screen according to claim 4, characterized in that: The sunken groove is a T-shaped groove or a trapezoidal groove.

6. The frame filter screen according to claim 1, characterized in that: The top of the internal reinforcement frame is provided with a variable diameter support part, the lower part of the variable diameter support part is a thick diameter end, the cross-sectional area of ​​the thick diameter end is larger than the cross-sectional area of ​​the variable diameter support part; the junction of the variable diameter support part and the thick diameter end is an inclined surface.

7. The frame filter screen according to claim 1, characterized in that: The top of the reinforcing rod is provided with a variable diameter support part, the lower part of the variable diameter support part is a thick diameter end, the cross-sectional area of ​​the thick diameter end is larger than the cross-sectional area of ​​the variable diameter support part; the junction of the variable diameter support part and the thick diameter end is an inclined surface.

8. The frame filter screen according to claim 1, characterized in that: A sealing gasket is provided on the assembly edge of the peripheral frame; the sealing gasket adopts a semicircular structure and is provided with a vent hole inside.

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