A pipeline filtering device

Abstract

The present invention discloses a pipeline filtering device, comprising: a pipeline body, the pipeline body comprising a sequentially connected medium inlet, a hollow medium passage cavity and a medium outlet; a rotatable filter plate, the rotatable filter plate can be circumferentially rotated at a center position, the rotatable filter plate is arranged in the medium passage cavity, and covers the entire cross-section of the cavity, the rotatable filter plate comprises a plurality of filter blades uniformly arranged in the circumferential direction, the angle between each of the filter blades and the direction of the medium passage cavity is less than 90°, and each of the filter blades is provided with a first medium passage hole. The pipeline filtering device of the present invention does not change the composition of the water body during filtering work, does not add chemical agents, does not consume energy during operation, has high filtering efficiency, and is energy-saving and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of filtration, and in particular to a pipeline filtration device. Background Art

[0002] Scaling problems occur widely in petroleum, thermal power and other industrial and civil fields. Therefore, a descaling solution has been sought. At present, the commonly used descaling solutions are: 1. Chemical descaling; 2. Electromagnetic field treatment; 3. Physical filtration. Chemical descaling is to change the composition, pH and ion concentration of the water body by adding agents to produce a descaling effect. Since it changes the composition of the water body and does not meet the requirements of environmental protection, its application is subject to more and more constraints; electromagnetic field treatment is to use electric energy to generate a magnetic field, and the ferromagnetic elements and compounds in the water body are adsorbed by the magnetic field, while other impurities that cannot be adsorbed by the magnetic field cannot be processed, so the descaling effect is low. At the same time, since it consumes a lot of electric energy, the descaling cost increases; physical filtration is usually a filter with a certain mesh number. The scale larger than the mesh number is intercepted, and the scale smaller than the mesh number still exists in the water body, and the filtration effect is not ideal. In addition, if the filtration effect is further pursued, a filter with a smaller mesh number must be used. However, at this time, it will form a greater resistance to the flow of the water body, and the filtration speed is slow. At the same time, since the filter mesh is small and easy to clog, it is necessary to frequently replace and clean the filter mesh, and the operability is poor. Therefore, a pipeline filtration device that takes into account the filtration effect, operating cost and filtration efficiency is needed to solve or at least reduce the occurrence of the above problems. Summary of the invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the background technology, the present invention discloses a pipeline filtering device that takes into account filtering effect, operating cost and filtering efficiency.

[0004] Technical solution: The pipeline filtering device of the present invention comprises:

[0005] A pipeline body, the pipeline body comprising a medium inlet, a hollow medium passage cavity and a medium outlet which are connected in sequence;

[0006] A rotatable filter plate, which can rotate circumferentially at a center position, is arranged in the medium passing cavity, covering the entire cross-section of the cavity, and includes a plurality of filter blades evenly arranged circumferentially, and the angle between each of the filter blades and the direction of the medium passing cavity is less than 90°, and a first medium passing hole is provided on each of the filter blades.

[0007] Since the angle between the filter blade and the direction of the medium through the cavity is less than 90°, that is, the angle is maintained between the two, the impact force of the oncoming water on the filter blade can be decomposed into the axial component of the rotatable filter plate and the rotational component driving the filter blade to rotate. The rotation of the rotatable filter plate reduces the resistance to the water body, thereby improving the filtration efficiency.

[0008] Furthermore, a plurality of rotatable filter plates are evenly spaced axially in the medium passage cavity, and cover any cross section of the cavity.

[0009] Furthermore, the rotatable filter plate includes a central mounting portion, a mounting hole is provided on the central mounting portion, the filter blades are evenly distributed on the outer periphery of the central mounting portion, and the outer ring of the filter blades is surrounded by the outer ring of the filter plate.

[0010] Taking the flow of water into consideration, the filtering blades are in the shape of a flat plate or a curved spiral, and the curved spiral shape has a better effect.

[0011] The connection method between the rotatable filter plate and the pipeline body is specifically as follows:

[0012] A rotating shaft is provided at the axial center of the pipe body, and the rotatable filter plate is fixed on the rotating shaft through the mounting hole. In this way, the rotatable filter plate is directly driven to rotate by the rotating shaft;

[0013] Alternatively, a fixed shaft is provided at the axial center of the pipe body, the rotatable filter plate is sleeved on the rotating shaft through a mounting hole, and the mounting hole and the fixed shaft are connected through a bearing. In this way, the rotatable filter plate can rotate directly under the impact of the water flow.

[0014] Alternatively, a roller bearing is provided on the inner wall of the medium passage cavity, and the outer ring of the filter plate is fixed to the inner ring of the roller bearing to realize the connection between the rotatable filter plate and the pipeline body. In this way, the rotatable filter plate can be rotated directly under the impact of the water flow. At this time, the mounting hole in the center of the rotatable filter plate serves as the medium passage hole.

[0015] Furthermore, it also includes a quick-connect fitting and a guide ring bolted to the medium inlet, the caliber of the quick-connect fitting is smaller than the caliber of the medium passage cavity, the caliber of the guide ring is larger than the caliber of the quick-connect fitting, the guide ring is fixed to the medium inlet, the guide ring is attached to the end surface of the quick-connect fitting facing the medium passage cavity, and the distance from the side of the guide ring facing the medium passage cavity to the inner wall of the medium passage cavity gradually decreases in the direction away from the quick-connect fitting.

[0016] Furthermore, the pipe body forms a neck portion at one end close to the medium outlet, and the pipe body extends outward at the medium outlet to form a docking portion.

[0017] Furthermore, the medium passes through the cavity and gradually expands outward from the medium inlet toward the medium outlet.

[0018] Furthermore, the device also includes a fixed filter plate, which is fixed to any cross section of the medium passing cavity, and a plurality of second medium passing holes are evenly opened circumferentially on the fixed filter plate.

[0019] Furthermore, the rotatable filter plate and the fixed filter plate are respectively provided in plurality and arranged in sequence from the end of the medium inlet to the end of the medium outlet. The angle of the rotatable filter plate can be adjusted so that the first medium passage hole and the second medium passage hole are in a straight line, that is, when the medium passage cavity gradually expands outward from the medium inlet toward the medium outlet, the distance between the medium passage hole and the central rotation axis gradually increases.

[0020] Wherein, the rotatable filter plate and the fixed filter plate are both made of a copper-based catalyst alloy with anti-scaling function.

[0021] The copper-based catalyst alloy comprises the following materials in weight percentage: Cu: 40%-70%, Ni: 5%-20%, Zn: 10%-35%, Sn: 5%-30%, Ag: 0.5%-20%, Fe: 0.1-8%, Sb: 0.01%-2%, Mn: 0.05%-5%, and each component is combined to form a columnar crystal alloy that grows along the S100 crystal axis. The preparation method comprises the following steps: (1) preparing raw materials according to the weight percentage of each component, the raw material purity is 99.9% or more, and the volume is less than or equal to 2cm 3 (2) Place 1 cm to 3 cm thick charcoal in the crucible of the induction furnace, evenly place half of the Cu material on the charcoal by weight, then evenly place all the Ni blocks on the Cu material, and then place 1 cm to 3 cm thick charcoal, open the furnace and heat it to 900°C-1100°C. After all the metals are melted, add all the Fe and Sb blocks, stir until the metals are completely dissolved, then add all the Mn blocks, and keep warm for 3 minutes to 8 minutes to degas the molten metal; (3) Then add Zn, Sn, Ag and the remaining Cu in order, stir slowly, and after all the metals are melted, remove the scum, reduce the melt temperature to 1150°C-1280°C, and pour the molten metal into a casting mold. Cool for 5 minutes to 15 minutes until a crust forms on the surface of the metal to form a metal ingot, then water-cool it to room temperature, take out the metal ingot, and obtain a copper-based catalyst alloy.

[0022] Beneficial effects: Compared with the prior art, the advantages of the present invention are: first, the use of a rotatable filter plate does not change the composition of the water body, does not add chemical agents, does not require energy consumption during operation, has high filtration efficiency, and is energy-saving and environmentally friendly; second, because the angle between the filter blade and the direction of the medium through the cavity is less than 90°, that is, the angle is maintained between the two, the impact force of the oncoming water on the filter blade can be decomposed into the axial component of the rotatable filter plate and the rotational component driving the filter blade to rotate, and the rotation of the rotatable filter plate reduces the resistance to the water body, thereby improving the filtration efficiency; third, the first medium through hole on each filter blade further reduces the resistance to the water body, improves the filtration efficiency, and at the same time, increases the contact area with the water body, further improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic cross-sectional view of the first connection mode of the rotatable filter plate of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of a rotatable filter plate with flat blades of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of a rotatable filter plate with spiral blades of the present invention;

[0026] Figure 4 It is a cross-sectional structural schematic diagram of a second connection mode of the rotatable filter plate of the present invention;

[0027] Figure 5 It is a schematic cross-sectional structure diagram of a third connection mode of the rotatable filter plate of the present invention;

[0028] Figure 6 yes Figure 5 A partial enlarged view of the middle Z;

[0029] Figure 7 It is a schematic diagram of the structure of the outward expansion type pipeline filtering device of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the fixed filter plate of the present invention. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] like Figure 1 and Figure 2 The pipeline filtering device shown comprises:

[0033] A pipeline body 1, wherein the pipeline body 1 comprises a medium inlet 101, a hollow medium passage cavity 102 and a medium outlet 103 which are connected in sequence;

[0034] A rotatable filter plate 2, which can rotate circumferentially at a center position, is arranged in the medium passing cavity 102, covering the entire cross-section of the cavity, and includes a plurality of filter blades 201 uniformly arranged circumferentially, and the angle between each of the filter blades 201 and the direction of the medium passing cavity 102 is less than 90°, and each of the filter blades 201 is provided with a first medium passing hole 202.

[0035] The rotatable filter plate 2 is made of a copper-based catalyst alloy with anti-scaling function. It does not change the composition of the water body during filtration, does not add chemical agents, does not consume energy during operation, has high filtration efficiency, and is energy-saving and environmentally friendly.

[0036] Since the angle between the filter blade 201 and the direction of the medium through the cavity 102 is less than 90°, that is, the angle is maintained between the two, the impact force of the oncoming water on the filter blade 201 can be decomposed into the axial component of the rotatable filter plate 2 and the rotational component driving the filter blade 201 to rotate. The rotation of the rotatable filter plate 2 reduces the resistance to the water body, thereby improving the filtration efficiency. The first medium through hole 202 on each filter blade 201 further reduces the resistance to the water body, improves the filtration efficiency, and at the same time, increases the contact area with the water body, further improving the filtration efficiency.

[0037] The rotatable filter plates 2 are arranged evenly in the axial direction in the medium passage cavity 102, and cover any cross section of the cavity. In this embodiment, six rotatable filter plates 2 are arranged at intervals, and each covers the cross section.

[0038] The rotatable filter plate 2 includes a central mounting portion 203 , a mounting hole 204 is provided on the central mounting portion 203 , the filter blades 201 are evenly distributed on the outer periphery of the central mounting portion 203 , and the outer ring of the filter blades 201 is surrounded by a filter plate outer ring 205 .

[0039] like Figure 2 and Figure 3 As shown, the shape of the filtering blade 201 can be a flat plate or a curved spiral.

[0040] The connection modes of the rotatable filter plate 2 and the pipeline body 1 include but are not limited to the following three modes, specifically:

[0041] like Figure 1 In the first connection method shown, a rotating shaft 104 is provided at the axial position of the pipe body 1, and the rotatable filter plate 2 is fixed on the rotating shaft 104 through a mounting hole 204. A motor is provided at the end of the rotating shaft 104 to fix it to the center of the fixed filter plate 5. When this connection method is working, the motor drives the rotating shaft 104 to rotate, thereby driving the rotatable filter plate 2 to rotate.

[0042] like Figure 4 The second connection method shown is that a fixed shaft 105 is provided at the axial position of the pipe body 1, and the fixed shaft 105 can be directly fixedly connected to the inner wall of the pipe body through multiple radial brackets. The rotatable filter plate 2 is sleeved on the rotating shaft 104 through the mounting hole 204, and the mounting hole 204 is connected to the fixed shaft 105 through a bearing. When this connection method is working, the rotatable filter plate 2 can be directly rotated under the impact of water, and the fixed shaft 105 is stationary, which is used to fix the position of the rotatable filter plate 2.

[0043] like Figure 5 The third connection method shown is that a roller bearing 106 is provided on the inner wall of the medium passing cavity 102, and the filter plate outer ring 205 is fixed to the inner ring of the roller bearing 106, so as to realize the connection between the rotatable filter plate 2 and the pipe body 1. When this connection method is working, the position of the rotatable filter plate 2 is directly fixed by the pipe body 1, and it can be directly rotated under the impact of water, without setting a central axis, and the middle mounting hole 204 can be used as the medium passing hole.

[0044] like Figure 6 As shown, the pipeline filtering device also includes a quick-connect fitting 3 and a guide ring 4 bolted to the medium inlet 101, the caliber of the quick-connect fitting 3 is smaller than the caliber of the medium passage cavity 102, the caliber of the guide ring 4 is larger than the caliber of the quick-connect fitting 3, the guide ring 4 is fixed to the medium inlet 101, the guide ring 4 is attached to the end face of the quick-connect fitting 3 facing the medium passage cavity 102, and the distance from the side of the guide ring 4 facing the medium passage cavity 102 to the inner wall of the medium passage cavity 102 gradually decreases in the direction away from the quick-connect fitting 3, forming an arc-shaped guide surface 401. By setting the guide surface 401, the sudden change of the flow direction of the water body when it flows from the medium inlet quick-connect fitting 3 into the medium inlet 101 is reduced, which plays a guiding role on the water body, facilitates the smooth flow of the water body, further reduces the flow resistance of the water body, and thus improves the filtration efficiency.

[0045] The pipe body 1 forms a neck portion 113 at one end close to the medium outlet 103, and the pipe body extends outward at the medium outlet to form a docking portion 123. The neck portion 113 is provided to facilitate the installation of the hose. Specifically, during installation, the hose is first squeezed or softened at low temperature so that the hose can be easily put on the docking portion 123 and the neck portion 113 in sequence. After the hose is cooled, it can be firmly and tightly put on the medium docking portion 123.

[0046] like Figure 7As shown, the medium passage cavity 102 gradually expands outward from the medium inlet 101 to the medium outlet 103. Due to the centrifugal effect of the rotatable filter plate 2 on the water body, the water body has a tendency to flow laterally outward (toward the direction close to the inner wall of the medium passage cavity 102). Therefore, the pipe body 1 gradually expands outward, and the water body with a tendency to flow laterally outward is smoothly guided, which is further beneficial to the flow of the water body, avoiding or at least reducing the loss of kinetic energy of the centrifugal moving water body due to the constraint of the inner wall of the pipe body 1, thereby further improving the filtering efficiency.

[0047] like Figure 8 As shown, at the same time, the pipeline filter plate device also includes a fixed filter plate 5, which is fixed to any cross section of the medium passage cavity 102 (can be directly bolted or welded to the pipeline body), and a plurality of second medium passage holes 501 are evenly opened circumferentially on the fixed filter plate 5. Since the fixed filter plate 5 is simpler in structure and easier to install and maintain than the rotatable filter plate 2, the rotatable filter plate 2 is used in conjunction with the fixed filter plate 6, which meets the filtering effect while reducing the product manufacturing, installation and maintenance costs.

[0048] The rotatable filter plates 2 and the fixed filter plates 5 are provided in plurality, and preferably, six rotatable filter plates 2 and two fixed filter plates 5 are selected in this embodiment, and are arranged in sequence from the end of the medium inlet 101 to the end of the medium outlet 103, and the first medium through hole 202 and the second medium through hole 501 can be arranged in a straight line by adjusting the angle of the rotatable filter plate 2. That is, when the medium through cavity 102 gradually expands from the medium inlet 101 to the medium outlet 103, the distance between the medium through hole and the central rotation axis gradually increases.

[0049] The rotatable filter plate 2 and the fixed filter plate 5 are both made of a copper-based catalyst alloy with anti-scaling function.

[0050] It should be noted that the above-mentioned copper-based catalyst alloy with anti-scaling function forms a columnar crystal structure with consistent orientation inside the copper-based catalyst alloy by strictly controlling the composition ratio of various elements and adopting a heat treatment process, so that the copper-based catalyst alloy exhibits a unique function of extremely strong release of free electrons to the water medium and polarization effect on the water medium. When the water flows through the copper-based catalyst alloy at a certain flow rate, the copper-based catalyst alloy can release electrons to the water, change the electrostatic potential of the fluid, polarize the water, and make it difficult for anions and cations in the water to combine to form scale. The copper-based catalyst alloy includes the following materials in weight percentage: Cu: 40%-70%, Ni: 5%-20%, Zn: 10%-35%, Sn: 5%-30%, Ag: 0.5%-20%, Fe: 0.1-8%, Sb: 0.01%-2%, Mn: 0.05%-5%, and each component is combined to form a columnar crystal alloy that grows along the S100 crystal axis. It achieves the purpose of scale inhibition by continuously releasing free electrons and reducing the cation concentration of the water body without changing the composition and pH of the water body, thereby reducing the scale index. The Cu-Ni binary alloy has excellent chemical stability, excellent corrosion resistance in various environments, excellent cold and hot processing performance, and moderate cost. Although the Cu-Ni alloy system has less electronegativity than the solution, its ability to lose electrons is not strong due to its good chemical stability. Therefore, on the basis of the Cu-Ni binary alloy, Zn and Ag elements are selected as alloying elements for addition. Among them, the electronegativity of Zn is 1.65, which is one of the metal elements with the lowest electronegativity among common elements, and can form a stable ternary alloy with Cu-Ni alloy. The electronegativity of Ag is 2.34, which is one of the alloy elements with the highest electronegativity among common elements except for rare earths and radioactive elements. Ag is almost insoluble in Cu-Ni-Zn alloy and mainly appears in a free state. Through reasonable composition control and heat treatment process, an ideal distribution state can be obtained, which is an ideal positive electrode material. As the Ag content increases, the activation current gradually increases. The larger the activation current, the stronger the ability to release electrons, the less the amount of copper-based catalyst alloy used per unit flow, and the more advantageous the overall cost.

[0051] The preparation method of the copper-based catalyst alloy comprises the following steps:

[0052] 1. Prepare raw materials according to the weight percentage of each component. The raw material purity is 99.9% or more in the form of blocks, and its volume is less than or equal to 2cm 3 ;

[0053] 2. Place 1cm to 3cm thick charcoal in the crucible of the induction furnace, evenly place half of the Cu material on the charcoal by weight, then evenly place all the Ni blocks on the Cu material, and then place 1cm to 3cm thick charcoal, open the furnace and raise the temperature to 900℃-1100℃, after all the metals are melted, add all the Fe and Sb blocks, stir until all the metals are melted, then add all the Mn blocks, keep warm for 3 minutes to 8 minutes to degas the molten metal;

[0054] 3. Then add Zn, Sn, Ag and the remaining Cu in order, stir slowly, and after all the metals are melted, remove the scum, reduce the melt temperature to 1150℃~1280℃, inject the molten metal into the casting mold, cool for 5 minutes to 15 minutes until the metal surface forms a crust to form a metal ingot, then cool it to room temperature with water, take out the metal ingot, and obtain the copper-based catalyst alloy.

Claims

1. A pipeline filtering device, characterized in that: include: A pipeline body (1), the pipeline body (1) comprising a medium inlet (101), a hollow medium passage cavity (102), and a medium outlet (103) which are connected in sequence; A rotatable filter plate (2), the rotatable filter plate (2) being capable of circumferential rotation at a central position, the rotatable filter plate (2) being arranged in the medium passage cavity (102) and covering the entire cross section of the medium passage cavity, the rotatable filter plate (2) comprising a plurality of filter blades (201) uniformly arranged in the circumferential direction, the angle between each of the filter blades (201) and the direction of the medium passage cavity (102) being less than 90°, and each of the filter blades (201) being provided with a first medium passage hole (202); It also comprises a quick-connect fitting (3) and a guide ring (4) bolted to the medium inlet (101); the caliber of the quick-connect fitting (3) is smaller than the caliber of the medium passage cavity (102); the caliber of the guide ring (4) is larger than the caliber of the quick-connect fitting (3); the guide ring (4) is fixed to the medium inlet (101); the guide ring (4) is attached to the end surface of the quick-connect fitting (3) facing the medium passage cavity (102); the distance from the side surface of the guide ring (4) facing the medium passage cavity (102) to the inner wall of the medium passage cavity (102) gradually decreases in a direction away from the quick-connect fitting (3); The pipe body (1) forms a neck portion (113) at one end close to the medium outlet (103), and the pipe body extends outward at the medium outlet to form a docking portion (123); The medium passes through the cavity (102) and gradually expands outward from the medium inlet (101) toward the medium outlet (103); It also includes a fixed filter plate (5), the fixed filter plate (5) being fixed to any cross section of the medium passage cavity (102), and a plurality of second medium passage holes (501) being uniformly provided on the fixed filter plate (5) in a circumferential direction; The rotatable filter plates (2) and the fixed filter plates (5) are respectively provided in plurality and arranged in sequence from the end of the medium inlet (101) to the end of the medium outlet (103), and the first medium passage hole (202) and the second medium passage hole (501) can be arranged in a straight line by adjusting the angle of the rotatable filter plates (2).

2. The pipeline filtering device according to claim 1, characterized in that: A plurality of rotatable filter plates (2) are evenly spaced axially in the medium passing cavity (102), and cover any cross section of the medium passing cavity (102).

3. The pipeline filtering device according to claim 1, characterized in that: The rotatable filter plate (2) comprises a central mounting portion (203), a mounting hole (204) is provided on the central mounting portion (203), the filter blades (201) are evenly distributed on the outer periphery of the central mounting portion (203), and the outer ring of the filter blades (201) is surrounded by a filter plate outer ring (205).

4. The pipeline filtering device according to claim 1, characterized in that: The filtering blade (201) is in the shape of a flat plate or a curved spiral.

5. The pipeline filtering device according to claim 3, characterized in that: The connection method of the rotatable filter plate (2) and the pipeline body (1) is specifically as follows: A rotating shaft (104) is provided at the axial center of the pipeline body (1), and the rotatable filter plate (2) is fixed on the rotating shaft (104) via a mounting hole (204); Alternatively, a fixed shaft (105) is provided at the axis center of the pipeline body (1), the rotatable filter plate (2) is sleeved on the rotating shaft (104) through the mounting hole (204), and the mounting hole (204) and the fixed shaft (105) are connected via a bearing; Alternatively, a roller bearing (106) is provided on the inner wall of the medium passage cavity (102), and the filter plate outer ring (205) is fixed to the inner ring of the roller bearing (106), thereby achieving connection between the rotatable filter plate (2) and the pipeline body (1).

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