Overflow lifting equipment for ultrafiltration membrane pool
By introducing an overflow booster device into the ultrafiltration membrane tank, and using an overflow weir and booster pump to treat the overflow water, the problem of abnormal water level rise is solved, ensuring stable system operation and adapting to abnormal conditions such as flow fluctuations and membrane fouling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 眉山甘眉水务有限公司
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, due to factors such as fluctuations in influent flow rate and membrane fouling, the water level in the ultrafiltration membrane tank may rise abnormally. Existing methods cannot effectively and promptly treat overflow water, affecting the normal operation of the ultrafiltration membrane tank.
An ultrafiltration membrane tank overflow lifting device is adopted, including an inlet, an outlet, an inlet valve, an outlet valve, an overflow component, an overflow weir, a flow guide, a lift pump, a lift pipe, and a coarse filtration component. The overflow weir guides the water to the flow guide and the lift pump lifts the water to a suitable height. Alternatively, in abnormal circumstances, the water can directly enter the subsequent treatment unit through the overflow component, thus avoiding affecting the operation of the system.
It effectively treats overflow water in the ultrafiltration membrane tank, ensures normal system operation, avoids operational problems caused by abnormal water level rise, and adapts to abnormal situations such as flow fluctuations and membrane fouling.
Smart Images
Figure CN224113705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water treatment technology, and in particular to an overflow lifting device for an ultrafiltration membrane tank. Background Technology
[0002] Ultrafiltration membrane technology, as a highly efficient water treatment technology, has been widely used in the field of water treatment in recent years. An ultrafiltration membrane is a filter medium with precise pore size, which can effectively remove suspended solids, colloids, bacteria, viruses, and some large organic molecules from water, thereby improving water purity.
[0003] In the water treatment process, raw water first enters the ultrafiltration membrane tank, where it is forced to pass through the ultrafiltration membrane under pressure. The filtered water is clear and meets the standards for subsequent treatment or direct use. It then enters subsequent treatment processes, such as reverse osmosis and ion exchange, to further improve the water quality.
[0004] However, in actual operation, due to factors such as fluctuations in influent flow and membrane fouling, the water level in the ultrafiltration membrane tank may rise abnormally. Existing methods cannot effectively and timely handle the overflow water, which affects the normal operation of the ultrafiltration membrane tank. Utility Model Content
[0005] The purpose of this utility model is to provide an overflow lifting device for an ultrafiltration membrane tank, which aims to solve the technical problem that in the prior art, due to factors such as fluctuations in influent flow rate and membrane fouling, the water level in the ultrafiltration membrane tank will rise abnormally, and the existing methods cannot handle the overflow water in a timely and effective manner, thus affecting the normal operation of the ultrafiltration membrane tank.
[0006] To achieve the above objectives, this utility model employs an ultrafiltration membrane tank overflow lifting device, comprising an inlet, an outlet, an inlet valve, an outlet valve, a bypass component, an overflow weir, a flow guide, a lifting pump, a lifting pipe, and a coarse filtration component. The inlet and outlet are both located on the ultrafiltration membrane tank. The inlet valve and outlet valve are respectively installed on the inlet and outlet. The bypass component is located between the inlet and outlet. The overflow weir is located on the ultrafiltration membrane tank. The flow guide is fixedly connected to the ultrafiltration membrane tank. The lifting pipe communicates with the flow guide. The lifting pump is located on the flow guide. The coarse filtration component is located on the ultrafiltration membrane tank.
[0007] The bypass assembly includes a bypass pipe and a bypass valve. The two ends of the bypass pipe are connected to the inlet and the outlet, respectively, and the bypass valve is installed on the bypass pipe.
[0008] The coarse filtration assembly includes a gantry, a filter element, two sliding members, two locking members, two springs, and a power unit. The ultrafiltration membrane tank has two slots and two through holes. The gantry is placed in the two slots, and the filter element is placed on the gantry. The gantry has two locking grooves and two sliding grooves. The two sliding members are slidably connected to their corresponding sliding grooves. The two ends of the springs are fixedly connected to their corresponding sliding members and the gantry, respectively. One end of the locking member is fixedly connected to its corresponding sliding member, and the other end of the locking member passes through the corresponding through hole and is placed in the corresponding locking groove. The power unit is used to drive the two sliding members to move.
[0009] The power unit includes a rotating rod, a block, and an elliptical plate. The rotating rod is rotatably connected to the gantry, and the block and the elliptical plate are fixedly connected to the rotating rod. The elliptical plate is in contact with two sliding members.
[0010] The sliding member includes a force-bearing plate and a sliding plate. The sliding plate is slidably connected to the corresponding sliding groove. The force-bearing plate is fixedly connected to the sliding plate and is in contact with the elliptical plate.
[0011] This utility model discloses an overflow lifting device for an ultrafiltration membrane tank. In normal operation, raw water enters the ultrafiltration membrane tank through the inlet and inlet valve. Under pressure, the water passes through the coarse filtration component and then through the ultrafiltration membrane. The produced water enters the subsequent treatment process through the outlet and outlet valve. When the water level in the membrane tank rises to the overflow weir height due to factors such as the influent flow rate exceeding the produced water flow rate, the excess water enters the guide component through the overflow weir and is then lifted to a suitable height by the lift pump and lift pipe, before being transported to the subsequent treatment stage for further processing.
[0012] When the ultrafiltration membrane tank experiences problems such as severe membrane fouling or membrane module damage, resulting in poor treatment effect or inability to operate normally, or when the ultrafiltration membrane tank needs to be shut down for maintenance according to process requirements, the control system will issue an instruction to close the inlet valve and the outlet valve, allowing the raw water or water from the previous stage to directly pass through the ultrafiltration component into the subsequent treatment unit, thus avoiding affecting the normal operation of the entire water treatment system.
[0013] This approach solves the technical problem in existing technologies where abnormal rises in water level within the ultrafiltration membrane tank occur due to factors such as fluctuations in influent flow and membrane fouling. Existing methods are unable to effectively and promptly handle overflow water, thus affecting the normal operation of the ultrafiltration membrane tank. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overflow lifting device for the ultrafiltration membrane tank of this utility model.
[0016] Figure 2 This is a top view of the ultrafiltration membrane tank overflow lifting device of this utility model.
[0017] Figure 3 This is a partial structural schematic diagram of the ultrafiltration membrane tank overflow lifting device of this utility model.
[0018] Figure 4 This is the utility model Figure 3 A cross-sectional view of the AA line structure.
[0019] 100-Ultrafiltration membrane tank, 101-Inlet, 102-Outlet, 103-Inlet valve, 104-Outlet valve, 105-Overflow weir, 106-Flow guide, 107-Lift pump, 108-Lift pipe, 109-Overpass pipe, 110-Overpass valve, 111-Gantry, 112-Filter element, 113-Locking element, 114-Spring, 115-Rotating rod, 116-Block, 117-Elliptical plate, 118-Force plate, 119-Slide plate, 120-Slot, 121-Through hole, 122-Locking groove, 123-Slide groove. Detailed Implementation
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the overflow lifting device for the ultrafiltration membrane tank of this utility model. Figure 2 This is a top view of the ultrafiltration membrane tank overflow lifting device of this utility model. Figure 3 This is a partial structural schematic diagram of the ultrafiltration membrane tank overflow lifting device of this utility model. Figure 4 This is the utility model Figure 3 A cross-sectional view of the AA line structure.
[0022] This utility model provides an overflow lifting device for an ultrafiltration membrane tank, including an inlet 101, an outlet 102, an inlet valve 103, an outlet valve 104, a bypass component, an overflow weir 105, a flow guide 106, a lifting pump 107, a lifting pipe 108, and a coarse filtration component. The inlet 101 and the outlet 102 are both located on the ultrafiltration membrane tank 100. The inlet valve 103 and the outlet valve 104 are respectively located on the inlet 101 and the outlet 102. The bypass component is located between the inlet 101 and the outlet 102. The overflow weir 105 is located on the ultrafiltration membrane tank 100. The flow guide 106 is fixedly connected to the ultrafiltration membrane tank 100. The lifting pipe 108 communicates with the flow guide 106. The lifting pump 107 is located on the flow guide 106. The coarse filtration component is located on the ultrafiltration membrane tank 100.
[0023] In this specific embodiment, during normal use: raw water enters the ultrafiltration membrane tank 100 through the inlet 101 and the inlet valve 103. Under pressure, the water passes through the coarse filtration component and then through the ultrafiltration membrane. The produced water enters the subsequent treatment process through the outlet 102 and the outlet valve 104. When the water level in the membrane tank rises to the height of the overflow weir 105 due to reasons such as the inlet flow rate being greater than the produced water flow rate, the excess water enters the guide member 106 through the overflow weir 105, and is then lifted to a suitable height by the lift pump and the lift pipe 108, and transported to the subsequent treatment stage for further processing.
[0024] When the ultrafiltration membrane tank 100 experiences problems such as severe membrane fouling or membrane module damage, resulting in poor treatment effect or inability to operate normally, or when the ultrafiltration membrane tank 100 needs to be shut down for maintenance according to process requirements, the control system will issue an instruction to close the inlet valve 103 and the outlet valve 104, allowing the raw water or water from the previous stage to directly enter the subsequent treatment unit through the ultrafiltration component, thus avoiding affecting the normal operation of the entire water treatment system.
[0025] This approach solves the technical problem in the existing technology where the water level in the ultrafiltration membrane tank 100 rises abnormally due to factors such as fluctuations in influent flow and membrane fouling. The existing method cannot effectively and promptly handle the overflow water, which affects the normal operation of the ultrafiltration membrane tank 100.
[0026] The bypass assembly includes a bypass pipe 109 and a bypass valve 110. The two ends of the bypass pipe 109 are connected to the inlet 101 and the outlet 102, respectively, and the bypass valve 110 is disposed on the bypass pipe 109.
[0027] In this specific embodiment, during bypass operation, after the inlet valve 103 and the outlet valve 104 are closed, the bypass valve 110 is opened, allowing the raw water or water from the previous stage to directly enter the subsequent processing unit through the bypass pipe 109.
[0028] Secondly, the coarse filtration assembly includes a gantry 111, a filter element 112, two sliding members, two locking members 113, two springs 114, and a power unit. The ultrafiltration membrane tank 100 has two slots 120 and two through holes 121. The gantry 111 is placed in the two slots 120, and the filter element 112 is placed on the gantry 111. The gantry 111 has two locking grooves 122 and two sliding grooves 123. The two sliding members are slidably connected to the corresponding sliding grooves 123. The two ends of the springs 114 are fixedly connected to the corresponding sliding members and the gantry 111, respectively. One end of the locking member 113 is fixedly connected to the corresponding sliding member, and the other end of the locking member 113 passes through the corresponding through hole 121 and is placed in the corresponding locking groove 122. The power unit is used to drive the two sliding members to move.
[0029] In this specific embodiment, when the filter element 112 needs to be installed, the power assembly first drives the two sliding members to move relative to each other. Then, the gantry 111 is inserted into the two slots 120. Then, the power assembly is released. At this time, the two springs 114 reset and drive the two sliding members to move towards each other. The two sliding members drive the two locking members 113 to be inserted into the corresponding locking grooves 122, which can limit and fix the gantry 111, thus completing the installation of the filter element 112. Conversely, it is convenient to disassemble the filter element 112.
[0030] Meanwhile, the power unit includes a rotating rod 115, a block 116, and an elliptical plate 117. The rotating rod 115 is rotatably connected to the gantry 111, and the block 116 and the elliptical plate 117 are both fixedly connected to the rotating rod 115. The elliptical plate 117 is in contact with the two sliding members.
[0031] In this specific embodiment, the block 116 can drive the rotating rod 115 to rotate, the rotating rod 115 can drive the elliptical plate 117 to rotate, and the elliptical plate 117 can resist the relative movement of the two sliding members.
[0032] In addition, the sliding member includes a force-bearing plate 118 and a sliding plate 119. The sliding plate 119 is slidably connected to the corresponding sliding groove 123. The force-bearing plate 118 is fixedly connected to the sliding plate 119, and the force-bearing plate 118 is in contact with the elliptical plate 117.
[0033] In this specific embodiment, when the elliptical plate 117 rotates, it drives the two force plates 118 to move relative to each other, and the force plates 118 drive the corresponding slide plates 119 to slide in the corresponding slide grooves 123.
[0034] In the case of an ultrafiltration membrane tank overflow lifting device according to this invention, under normal use: raw water enters the ultrafiltration membrane tank 100 through the inlet 101 and the inlet valve 103. Under pressure, the water passes through the coarse filtration component and then through the ultrafiltration membrane. The produced water enters the subsequent treatment process through the outlet 102 and the outlet valve 104. When the water level in the membrane tank rises to the height of the overflow weir 105 due to reasons such as the inlet flow rate being greater than the produced water flow rate, the excess water enters the guide member 106 through the overflow weir 105, and is then lifted to a suitable height by the lifting pump and the lifting pipe 108, and transported to the subsequent treatment stage for further processing.
[0035] When the ultrafiltration membrane tank 100 experiences problems such as severe membrane fouling or membrane module damage, resulting in poor treatment effect or inability to operate normally, or when the ultrafiltration membrane tank 100 needs to be shut down for maintenance according to process requirements, the control system will issue an instruction to close the inlet valve 103 and the outlet valve 104, allowing the raw water or water from the previous stage to directly enter the subsequent treatment unit through the ultrafiltration component, thus avoiding affecting the normal operation of the entire water treatment system.
[0036] This approach solves the technical problem in the existing technology where the water level in the ultrafiltration membrane tank 100 rises abnormally due to factors such as fluctuations in influent flow and membrane fouling. The existing method cannot effectively and promptly handle the overflow water, which affects the normal operation of the ultrafiltration membrane tank 100.
[0037] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. An overflow lifting device for an ultrafiltration membrane tank, characterized in that, The system includes an inlet, an outlet, an inlet valve, an outlet valve, a bypass component, an overflow weir, a flow guide, a booster pump, a booster pipe, and a coarse filtration component. Both the inlet and outlet are located on the ultrafiltration membrane tank. The inlet valve and outlet valve are respectively installed on the inlet and outlet. The bypass component is located between the inlet and outlet. The overflow weir is located on the ultrafiltration membrane tank. The flow guide is fixedly connected to the ultrafiltration membrane tank. The booster pipe communicates with the flow guide. The booster pump is located on the flow guide. The coarse filtration component is located on the ultrafiltration membrane tank.
2. The ultrafiltration membrane tank overflow lifting device as described in claim 1, characterized in that, The bypass assembly includes a bypass pipe and a bypass valve. The two ends of the bypass pipe are respectively connected to the inlet and the outlet, and the bypass valve is installed on the bypass pipe.
3. The ultrafiltration membrane tank overflow lifting device as described in claim 2, characterized in that, The coarse filtration assembly includes a gantry, a filter element, two sliding members, two locking members, two springs, and a power unit. The ultrafiltration membrane tank has two slots and two through holes. The gantry is placed in the two slots, and the filter element is placed on the gantry. The gantry has two locking grooves and two sliding grooves. The two sliding members are slidably connected to their corresponding sliding grooves. The two ends of the springs are fixedly connected to their corresponding sliding members and the gantry, respectively. One end of the locking member is fixedly connected to its corresponding sliding member, and the other end of the locking member passes through the corresponding through hole and is placed in the corresponding locking groove. The power unit is used to drive the two sliding members to move.
4. The ultrafiltration membrane tank overflow lifting device as described in claim 3, characterized in that, The power unit includes a rotating rod, a block, and an elliptical plate. The rotating rod is rotatably connected to the gantry, and the block and the elliptical plate are both fixedly connected to the rotating rod. The elliptical plate is in contact with the two sliding members.
5. The ultrafiltration membrane tank overflow lifting device as described in claim 4, characterized in that, The sliding component includes a force-bearing plate and a sliding plate. The sliding plate is slidably connected to the corresponding sliding groove. The force-bearing plate is fixedly connected to the sliding plate and is in contact with the elliptical plate.