End plate loading and unloading device for membrane module

Abstract

The utility model relates to an end plate loading and unloading device for a membrane module. The end plate loading and unloading device comprises a supporting plate, two connecting rods, a cross rod and a rocker, the supporting plate is used for being supported on the end face of the membrane shell and limiting the connecting rods, the lower end face of the supporting plate is provided with a positioning face connected with the end face of the membrane shell, and the supporting plate is symmetrically provided with two limiting holes through which the connecting rods penetrate; the connecting rods are used for being connected with an end plate on the membrane module, one end of each connecting rod is provided with a threaded connecting section, the other end of each connecting rod is provided with a connecting ring, the connecting rings are provided with mounting holes for the cross rods to penetrate through, and the threaded connecting sections on the two connecting rods penetrate through the corresponding limiting holes in the supporting plate and correspond to the two threaded connecting holes in the end plate; the cross rod penetrates through the mounting holes of the connecting rings of the two connecting rods and can be detached, the rocker is provided with an operating handle, and the threaded adjusting section on the rocker is screwed in the threaded hole of the cross rod. The device is simple in structure, convenient to assemble and light and convenient to operate, the end plate can be conveniently disassembled, and the end plate can be installed in an auxiliary mode.

Description

Technical Field

[0001] The utility model relates to an end plate loading and unloading device for a membrane component, belonging to the technical field of membrane equipment. Background Art

[0002] In the field of water treatment, nanofiltration membrane and reverse osmosis membrane treatment methods are widely used. Nanofiltration membrane and reverse osmosis membrane are mostly tubular ultrafiltration membrane elements, which are composed of an external membrane shell and a membrane core arranged in the membrane shell. The membrane shell is provided with a raw water interface, a water production port and a concentrated liquid port. When working, raw water is passed into the membrane shell under a certain pressure, and the suspended solids, insoluble substances and other substances in the water are filtered through the membrane core.

[0003] Due to the requirements of the working characteristics of the membrane equipment, after a period of normal operation, the membrane core will be contaminated by suspended matter, insoluble substances, and water treatment chemicals in the water, causing the water output of the membrane treatment system to decrease, affecting the normal operation of the membrane system. At this time, the membrane core will be cleaned by online cleaning. If the online cleaning does not achieve the cleaning effect, it is necessary to disassemble the end plate that fixes and protects the membrane core, and then remove the membrane core from the membrane shell for offline cleaning or replacement. After cleaning, the membrane core or the new membrane core is installed back into the membrane shell, and finally installed in the end plate for fixing.

[0004] Usually, a sealing ring is installed on the outer peripheral edge of the end plate, and the end plate is sealed and installed in the membrane shell through the sealing ring. Because the gap between the end plate and the membrane shell is small, and the outer side of the end plate of the 4-inch membrane element is also provided with a plug, the end plate located in the membrane shell is not easy to be removed from the membrane shell, resulting in time-consuming and laborious removal of the end plate. The existing end plate special disassembly tool, such as a special disassembly tool for the head of a reverse osmosis water treatment equipment disclosed in CN212553608U, adopts a screw, a nut, a gasket, a beam and a joint. After the screw joint is threadedly connected to the head, the beam is pressed against the reverse osmosis membrane shell, and the nut is rotated to squeeze the beam, and the head is taken out by the reaction force. The disassembly tool adopts a single rod disassembly. When disassembling, the beam needs to be squeezed by rotating the nut along the screw. The forces that need to be overcome during the operation include the friction between the nut and the beam and the pulling force of the nut on the screw. Therefore, the force applied during the actual operation is large, and the operation is still laborious. This is also the disadvantage of the current disassembly tool. Secondly, after the disassembly of the module assembly, the nut on the disassembly tool fits tightly with the crossbeam and the lead screw, making it difficult to restore the initial state for the next membrane assembly disassembly, thus increasing the auxiliary disassembly time. In addition, this type of disassembly tool can only disassemble, and cannot assist in the installation of the disassembled end plate when it is installed in the membrane shell. Therefore, the existing disassembly tool is only used for membrane elements with a diameter of 8 inches. For 4-inch membrane elements, since the center hole of the end plate is a socket connection, it cannot be used for the installation and removal of the end plate of the 4-inch membrane element. Summary of the invention

[0005] The utility model aims to provide an end plate loading and unloading device for a membrane assembly which has a simple structure, is easy to operate, and can facilitate the disassembly of the end plate and assist in the installation of the end plate.

[0006] The utility model provides a technical solution to achieve the above-mentioned purpose: an end plate loading and unloading device for a membrane assembly, characterized in that it comprises a support plate, two connecting rods, a crossbar and a rocker;

[0007] The support plate is used to support the end surface of the membrane shell and limit the connecting rod. The lower end surface of the support plate has a positioning surface connected to the end surface of the membrane shell, and two limiting holes through which the connecting rods pass are symmetrically arranged on the support plate; the connecting rod is used to connect with the end plate on the membrane assembly, one end of the connecting rod is provided with a threaded connection section, and the other end is provided with a connecting ring, and the connecting ring has a mounting hole through which a cross bar passes, and the threaded connection sections on the two connecting rods pass through the corresponding limiting holes on the support plate and correspond to the two threaded connection holes on the end plate; the cross bar is passed through the mounting holes of the connecting rings of the two connecting rods and can be removed, and the cross bar is provided with a threaded hole in the middle; the rocker has an operating handle, and the threaded adjustment section on the rocker is screwed into the threaded hole of the cross bar.

[0008] The loading and unloading device of the utility model adopts a support plate, two connecting rods, a cross bar and a rocker, and has a light structure and is easy to assemble. The two connecting rods are limited by the limiting holes on the support plate, which is convenient for the two connecting rods to pass through the support plate and be installed at the two threaded connection holes corresponding to the end plate, and can avoid the connection rods and the end plate from being skewed during the installation and removal of the end plate. The utility model can simultaneously apply a force to the end plate of the membrane assembly through the two connecting rods, and when the rocker rotates forward, the connecting rod and the end plate are evenly subjected to the reaction force, which can keep the end plate smoothly and stably removed or loaded into the membrane shell, and avoid the phenomenon of skewness, jamming, etc. caused by uneven force when dragging the end plate. The utility model screws the rocker onto the crossbar and places the rocker against the end plate. Therefore, when operating the rocker, there is only friction between the threaded adjustment section on the rocker and the crossbar, and the force is converted into a thrust force on the support plate from the top of the rocker. The force applied during the operation is smaller and more labor-saving. After disassembling a membrane component, the initial state can be restored by rotating the rocker, and the next membrane component can be disassembled. The operation is convenient and quick. The end plate loading and unloading device of the utility model can be used to remove the end plate of a 4-inch membrane element from the membrane shell, and can also assist in installing the end plate into the membrane shell, reducing labor intensity, improving labor efficiency, and having low cost. It can be used for loading and unloading the end plate of a 4-inch membrane element. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The embodiments of the present utility model are further described in detail below in conjunction with the accompanying drawings.

[0010] Figure 1The utility model is a structural schematic diagram of an end plate loading and unloading device for a membrane module.

[0011] Figure 2 It is a schematic structural diagram of another end plate loading and unloading device for membrane components of the utility model.

[0012] Figure 3 It is a structural schematic diagram of the utility model when the end plate is disassembled.

[0013] Among them: 1—rocker, 1-1—operating handle, 1-2—threaded adjustment section, 2—connecting rod, 2-1—connecting ring, 2-2—mounting hole, 2-3—limiting step surface, 2-4—threaded connecting section, 3—cross bar, 3-1—spiral hole, 3-2—limiting convex ring, 4—support plate, 4-1—limiting hole, 5—membrane shell, 6—end plate, 7—sealing ring. Specific embodiments

[0014] See Figure 1 , 2 As shown, the utility model is an end plate loading and unloading device for a membrane assembly, comprising a support plate 4, two connecting rods 2, a crossbar 3 and a rocker 1. Figure 1 , 2 As shown, the support plate 4 of the utility model is used to support the end face of the membrane shell 5 and limit the connection rod 2. The lower end face of the support plate 4 has a positioning surface connected to the end face of the membrane shell 5. The support plate 4 is symmetrically provided with two limiting holes 4-1 through which the connection rod 2 passes. The connection rod 2 is limited by the limiting holes 4-1 on the support plate 4. During the process of removing and installing the end plate 6, the connection rod 2 is not easy to tilt. At the same time, when the end plate 6 is installed in the membrane shell 5, the limiting holes 4-1 also make it difficult for the connection rod 2 and the end plate 6 to be skewed, thereby improving the reliability of assembly and disassembly. In order to prevent the support plate 4 from moving when it is attached to the end face of the membrane shell 5, the positioning surface of the support plate 4 is also provided with an outer boss that limits the outer periphery of the membrane shell 5. The outer boss can match the outer periphery of the membrane shell 5 to reduce the movement of the support plate 4. The distance between the aperture of the limiting hole 4-1 on the support plate 4 of the utility model and the axial diameter of the connecting rod 2 is 1-5mm. If the distance is 3mm or 4mm, it is convenient for the connecting rod 2 to pass through the limiting hole 4-1 of the support plate 4, and the position of the connecting rod 2 can also be better limited to realize assembly and disassembly operations.

[0015] See Figure 1 , 2As shown, the connecting rod 2 of the utility model is used to connect with the end plate 6 on the membrane assembly, one end of the connecting rod 2 is provided with a threaded connection section 2-4, and the other end is provided with a connecting ring 2-1, and the connecting ring 2-1 has a mounting hole 2-2 through which the cross bar 3 passes, and the threaded connection sections 2-4 on the two connecting rods 2 pass through the corresponding limiting holes 4-1 on the support plate 4 and correspond to the two threaded connection holes on the end plate 6. When installing and removing the end plate 6, the threaded connection sections 2-4 on the two connecting rods 2 are screwed into the corresponding threaded connection holes, and the loading and unloading device can be installed on the membrane assembly. In order to realize that the connecting rod 2 is installed on the end plate 6 and can be quickly limited, one end of the connecting rod 2 is provided with a threaded connection section 2-4 of a small shaft and a limiting step surface 2-3, and the threaded connection section 2-4 of the connecting rod 2 is screwed into the threaded connection hole of the end plate 6, and the limiting step surface 2-3 is connected to the outer side of the end plate 6.

[0016] See Figure 1 , 2 As shown, the cross bar 3 of the utility model is passed through the mounting hole 2-2 of the connecting ring 2-1 of the two connecting rods 2 and can be removed. The rocker 1 and the two connecting rods 2 are connected by the cross bar 3. The cross bar 3 is provided with a threaded hole 3-1 in the middle. The rocker 1 has an operating handle 1-1, and the threaded adjustment section 1-2 on the rocker 1 is screwed into the threaded hole 3-1 of the cross bar 3. When the bottom of the threaded adjustment section 1-2 of the rocker 1 is against the end plate 6, after the rocker 1 is rotated, the two connecting rods 2 are subjected to the reaction force and move in the direction away from the membrane core, driving the end plate 6 to move outward, and the end plate 6 is removed from the membrane shell 5. When the rocker 1 is not installed on the cross bar 3, the cross bar 3 can be knocked, so that the two connecting rods 2 connected to the cross bar 3 drive the end plate 6 to move toward the membrane core in the membrane shell 5 to the installation position, which is easy to operate.

[0017] See Figure 2 As shown, one side of the cross bar 3 of the utility model is provided with a limiting protrusion 3-2 or a limiting protrusion ring, and the limiting protrusion 3-2 can be evenly arranged along the circumference of the cross bar 3. The limiting protrusion 3-2 or the limiting protrusion ring on the cross bar 3 is connected to the outer side surface of the connecting ring 2-1 of one of the connecting rods 2 to limit the position, so it is convenient to quickly locate the position of the cross bar 3, so that the rocker 1 screwed on the cross bar 3 is located at the center of the support plate 1. Figure 1 , 2 As shown, the connection hole on the connecting rod 2 of the utility model is a circular hole or a rectangular hole, and the cross section of the cross bar 3 is a corresponding cylindrical or rectangular column, especially as shown in FIG. Figure 2 As shown, the cross bar 3 of the rectangular column is inserted into the connecting hole of the rectangular hole on the connecting rod 2, so that the cross bar 3 will not rotate, and thus the rocker 1 connected to the cross bar 3 will not swing.

[0018] See Figures 1 to 3As shown, when the end plate 6 is disassembled, the two connecting rods 2 are respectively passed through the corresponding limiting holes 4-1 on the support plate 4, and then the threaded connection section 2-4 is rotated and connected to the corresponding threaded connection hole on the end plate 6, and then the cross bar 3 is passed through the mounting hole 2-2 of the connecting ring 2-1 of the two connecting rods 2, and the threaded adjustment section 1-2 of the rocker 1 is installed in the threaded hole 3-1 of the cross bar 3, and the rocker 1 is rotated to make the threaded connection section 2-4 of the rocker 1 move toward the center direction of the end plate 6. When the threaded adjustment section 1-2 on the rocker 1 is against the support plate 4, and the positioning surface of the support plate 4 is connected to the end face of the membrane shell 5, the rocker 1 is continued to be rotated at this time, and the two connecting rods 2 are subjected to the reaction force and move in the direction away from the membrane core, thereby moving the end plate 6 and the sealing ring 7 on the end plate out of the membrane shell 5 together. When the removed end plate 6 needs to be installed in the membrane shell 5, the two connecting rods 2 are passed through the limiting holes 4-1 on the support plate 4 and are screwed into the corresponding threaded connection holes of the end plate 6, the two connecting rods 2 are connected to the end plate 6, and then the positioning surface of the support plate 4 is connected to the end surface of the membrane shell 5, the cross bar 3 is passed through the mounting hole 2-2 of the connecting ring 2-1 of the two connecting rods 2, the cross bar 3 is installed on the two connecting rods 2, the middle part of the cross bar 3 is knocked to transfer the force to the end plate 6, and the end plate 6 and the sealing ring 7 are installed in the membrane shell 5.

Claims

1. An end plate loading and unloading device for a membrane module, characterized in that: It comprises a support plate (4), two connecting rods (2), a crossbar (3) and a rocker (1); The support plate (4) is used to support the end surface of the membrane shell (5) and limit the connection rod (2); the lower end surface of the support plate (4) has a positioning surface connected to the end surface of the membrane shell (5); the support plate (4) is symmetrically provided with two limiting holes (4-1) through which the connection rod (2) passes; the connection rod (2) is used to connect with the end plate (6) on the membrane assembly; one end of the connection rod (2) is provided with a threaded connection section (2-4) and the other end is provided with a connection ring (2-1); the connection ring (2-1) has a mounting hole (2-1) through which the cross bar (3) passes. 2-2), the threaded connection sections (2-4) on the two connecting rods (2) pass through the corresponding limiting holes (4-1) on the support plate (4) and correspond to the two threaded connection holes on the end plate (6); the cross bar (3) passes through the mounting holes (2-2) of the connecting rings (2-1) of the two connecting rods (2) and can be removed, and the cross bar (3) is provided with a threaded hole (3-1) in the middle; the rocker (1) has an operating handle (1-1), and the threaded adjustment section (1-2) on the rocker (1) is screwed into the threaded hole (3-1) of the cross bar (3).

2. The end plate loading and unloading device for a membrane module according to claim 1, characterized in that: The connecting hole on the connecting rod (2) is a circular hole or a rectangular hole, and the cross section of the cross rod (3) is a corresponding cylindrical or rectangular column.

3. An end plate loading and unloading device for a membrane module according to claim 1 or 2, characterized in that: One end of the connecting rod (2) is provided with a threaded connection section (2-4) of a small shaft and a limiting step surface (2-3); the threaded connection section (2-4) of the connecting rod (2) is screwed into the threaded connection hole of the end plate (6), and the limiting step surface (2-3) is connected to the outer side surface of the end plate (6).

4. An end plate loading and unloading device for a membrane module according to claim 1 or 2, characterized in that: A limiting convex block (3-2) or a limiting convex ring is provided on one side of the cross bar (3); the limiting convex block (3-2) or the limiting convex ring on the cross bar (3) is connected to the outer side surface of the connecting ring (2-1) of one of the connecting rods (2) to limit the position.

5. The end plate loading and unloading device for a membrane module according to claim 1, characterized in that: An outer boss for limiting the outer periphery of the membrane shell (5) is provided on the positioning surface of the support plate (4).

6. The end plate loading and unloading device for a membrane module according to claim 1, characterized in that: The distance between the aperture of the limiting hole (4-1) on the support plate (4) and the axial diameter of the connecting rod (2) is 1-5 mm.

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