Membrane flux test experimental device

Abstract

The utility model provides a membrane flux test experimental device, and belongs to the technical field of membrane flux detection. The membrane flux test experimental device comprises a support structure and a test structure. The supporting structure comprises a supporting plate, and a sewage tank, a first supporting frame and a second supporting frame are mounted on the surface of the supporting plate; the testing structure comprises a membrane mounting frame, two membrane assemblies, a power cabinet, a water collecting tank and a driving part, the membrane mounting frame is arranged in the sewage tank, an adjusting part is mounted in the membrane mounting frame, the two membrane assemblies are mounted on the membrane mounting frame, the flow guide pipe is located above the sewage tank, and the driving part is connected with the flow guide pipe. The driving piece is mounted on the membrane component, and a backwashing component is mounted on the driving piece. According to the utility model, the disassembly and assembly can be reduced in the detection process, so that two groups can be detected repeatedly at the same time, the detection is more accurate, and meanwhile, the membrane modules with different lengths can be detected and used more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of membrane flux detection technology, and more specifically, to a membrane flux testing experimental device. Background Technology

[0002] Membrane flux is an important process operating parameter in membrane separation, referring to the amount of fluid passing through a unit membrane area per unit time. Membrane flux is determined by both the applied driving force and the membrane resistance, with the properties of the membrane itself playing a decisive role.

[0003] Currently, while it is relatively convenient to test the flux of a single membrane during the membrane flux detection process, it is inconvenient when comparing membranes of different lengths and types. Furthermore, the need to repeatedly replace membranes during the testing process undoubtedly affects the accuracy of the test, making it a relatively troublesome process. Therefore, it is necessary to develop a membrane flux testing experimental device to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a membrane flux testing experimental device, which aims to improve the membrane flux testing process. While it is convenient to test a single membrane flux, it is inconvenient to conduct comparative tests on membranes of different lengths and types. In addition, the need to repeatedly replace membranes during the testing process undoubtedly affects the accuracy of the test and is relatively troublesome.

[0005] This utility model is implemented as follows:

[0006] This invention provides a membrane flux testing experimental device, including a support structure and a testing structure.

[0007] The support structure includes a support plate, on the surface of which a wastewater tank, a first support frame, and a second support frame are mounted. The first and second support frames are located on opposite sides of the wastewater tank. The test structure includes a membrane mounting frame, two membrane modules, a power cabinet, a water collection tank, and a drive unit. The membrane mounting frame is placed inside the wastewater tank and has an adjusting component installed inside. The two membrane modules are mounted on the membrane mounting frame. The power cabinet is mounted on the second support frame. The water collection tank is mounted on the first support frame. A guide pipe is connected to one side of the water collection tank and is located above the wastewater tank. The drive unit is mounted on the membrane modules and has a backwashing component mounted on it.

[0008] In one embodiment of this utility model, the membrane mounting frame includes a lower support and an upper movable frame. A rod is fixed on the lower support and slidably inserted into the upper movable frame. Hooks are symmetrically fixed on the upper movable frame and hooked onto the sewage tank.

[0009] In one embodiment of this utility model, both the lower bracket and the upper movable frame are provided with grooves that match the membrane assembly, and the membrane assembly is placed in the grooves and fixed by clamps and bolts.

[0010] In one embodiment of this utility model, the adjusting member includes a first horizontal plate and a second horizontal plate. The first horizontal plate is fixed on the lower bracket, and the second horizontal plate is fixed on the upper movable frame. A threaded cylinder is fixed on the first horizontal plate, and a threaded rod is threadedly connected inside the threaded cylinder. The end of the threaded rod rotatably passes through the second horizontal plate, and a handwheel is keyed to the end of the threaded rod.

[0011] In one embodiment of this utility model, the driving component includes two self-priming pumps, which are mounted on the support plate. The outlets of the two self-priming pumps are connected to water delivery pipes, which pass through the first support frame and are positioned above the water collection tank. The inlets of the two self-priming pumps are connected to water inlet pipes, and the ends of the water inlet pipes are mounted on the membrane assembly.

[0012] In one embodiment of this utility model, a flow meter and a self-priming valve are installed on the water delivery pipe, and a pressure transmitter and a pressure gauge are installed on the water inlet pipe.

[0013] In one embodiment of this utility model, an aeration assembly is also installed on the sewage tank. The aeration assembly includes an aeration pump and two annular pipes. The aeration pump is installed on the support plate, and the output port of the aeration pump is connected to an air supply pipe. The two annular pipes are fixed inside the sewage tank. The air supply pipe is connected to one of the upper annular pipes. The two annular pipes are connected to each other through a vertical pipe. Two first horizontal pipes are connected and fixed on one of the lower annular pipes. Aeration holes are evenly opened on the two second horizontal pipes.

[0014] In one embodiment of this utility model, the backwashing assembly includes a backwash pump and a second horizontal pipe. The backwash pump is mounted on the support plate, and the outlet of the backwash pump is connected to a liquid outlet pipe. The liquid outlet pipe is connected to the second horizontal pipe via a connecting rod. The second horizontal pipe is connected and fixed between the two water supply pipes. A backwash valve is installed on the liquid outlet pipe, and the inlet of the backwash pump is connected to an inlet pipe. The inlet pipe is connected to the water collection tank.

[0015] In one embodiment of this utility model, the power cabinet is electrically connected to the self-priming pump, the flow meter, the pressure transmitter, and the pressure gauge.

[0016] The beneficial effects of this utility model are as follows: The membrane flux testing experimental device obtained by the above design, when in use, is operated by rotating the threaded rod via a handwheel according to the length of the membrane module. This causes the threaded cylinder to extend or retract under the action of the first horizontal plate. After extending or retracting to the appropriate height of the membrane module, the membrane module is placed in the corresponding grooves of the lower bracket and the upper movable frame, and then fixed in place using clamps and bolts. The membrane mounting frame is then placed inside the wastewater tank, with the hooks positioned on the tank. At this point, the self-priming pump operates, causing the wastewater inside the tank to quickly pass through the membrane module. The treated wastewater is then transferred to the inside of the collection tank through the inlet and outlet pipes, and then re-enters the tank through the guide pipe. The wastewater tank maintains internal water pressure. The power cabinet is used to monitor the membrane flux of the self-priming pump, flow meter, pressure transmitter, and pressure gauge. After the test is completed, the self-priming valve is closed and the backwash valve is opened. The backwash pump then transports water from the collection tank through the inlet pipe, outlet pipe, and second horizontal pipe to the inside of the delivery pipe. Since the self-priming valve is closed, the water can act in reverse through the delivery pipe and inlet pipe on the membrane module. Simultaneously, the aeration unit flushes the membrane module, which helps to conduct repeated experimental tests. This reduces disassembly and assembly during the testing process, allowing for simultaneous repeated testing of two sets, which is beneficial for more accurate testing and makes it more convenient to test membrane modules of different lengths. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a first-view structural schematic diagram of the membrane flux testing experimental device provided in this embodiment of the utility model;

[0019] Figure 2 A second-view structural schematic diagram of the membrane flux testing experimental device provided for an embodiment of this utility model;

[0020] Figure 3 A partial cross-sectional structural diagram of the membrane flux testing experimental device provided for an embodiment of this utility model;

[0021] Figure 4 A schematic diagram of the driving component of the membrane flux testing experimental device provided for an embodiment of this utility model;

[0022] Figure 5 A schematic diagram of the membrane mounting frame structure of the membrane flux testing experimental device provided for an embodiment of this utility model;

[0023] Figure 6 A schematic diagram of the aeration component structure of the membrane flux testing experimental device provided for an embodiment of this utility model.

[0024] In the diagram: 100-Support structure; 110-Support plate; 120-Sewage tank; 130-First support frame; 140-Second support frame; 200-Test structure; 210-Membrane mounting frame; 211-Lower bracket; 212-Insertion rod; 213-Upper movable frame; 214-Hook; 220-Adjusting component; 221-First horizontal plate; 222-Second horizontal plate; 223-Threaded cylinder; 224-Threaded rod; 225-Handwheel; 230-Membrane module; 240-Power cabinet; 250-Collection tank; 251-Drainage pipe; 260-Drive component; 261-Self-priming pump; 262-Water delivery pipe; 2621-Flow meter; 2622-Self-priming valve; 263-Inlet pipe; 2631-Pressure transmitter; 2632-Pressure gauge; 270-Aeration assembly; 271-Aeration pump; 272-Air delivery pipe; 273-Annular pipe; 274-Vertical pipe; 275-First horizontal pipe; 276-Aeration hole; 280-Backwash assembly; 281-Backwash pump; 282-Discharge pipe; 2821-Backwash valve; 283-Second horizontal pipe; 284-Inlet pipe. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0026] Please see Figures 1-6 This utility model provides a technical solution: a membrane flux testing experimental device, including a support structure 100 and a testing structure 200.

[0027] Please see Figures 1-3 The support structure 100 includes a support plate 110. A sewage tank 120, a first support frame 130, and a second support frame 140 are mounted on the surface of the support plate 110. The first support frame 130 and the second support frame 140 are located on both sides of the sewage tank 120. Support columns are symmetrically fixed to the bottom of the support plate 110, and support pads are fixed to the bottom of the support columns. The support columns and support pads are used to support the support plate 110.

[0028] Please see Figures 1-6The test structure 200 includes a membrane mounting frame 210, two membrane modules 230, a power cabinet 240, a water collection tank 250, and a drive unit 260. The membrane mounting frame 210 is placed inside the wastewater tank 120. An adjusting component 220 is installed inside the membrane mounting frame 210. The two membrane modules 230 are mounted on the membrane mounting frame 210. The power cabinet 240 is mounted on the second support frame 140. The water collection tank 250 is mounted on the first support frame 130. A guide pipe 251 is connected to one side of the water collection tank 250. The guide pipe 251 is located above the wastewater tank 120. The drive unit 260 is mounted on the membrane module 230. A backwashing component 280 is mounted on the drive unit 260.

[0029] The membrane mounting frame 210 includes a lower support 211 and an upper movable frame 213. A rod 212 is fixed on the lower support 211 and slidably inserted into the upper movable frame 213. The upper movable frame 213 has a matching insertion hole for the rod 212 to slide into the frame. Hooks 214 are symmetrically fixed on the upper movable frame 213 and are hooked onto the wastewater tank 120. Both the lower support 211 and the upper movable frame 213 have grooves that match the membrane module 230. The membrane module 230 is placed in the grooves and fixed by clamps and bolts. Here, the membrane mounting frame 210 can be hung on the wastewater tank 120 for positioning by hooks 214, and the membrane module 230 can be installed by clamps and bolts, which can improve the stability during testing.

[0030] The adjusting component 220 includes a first horizontal plate 221 and a second horizontal plate 222. The first horizontal plate 221 is fixed on the lower bracket 211, and the second horizontal plate 222 is fixed on the upper movable frame 213. A threaded cylinder 223 is fixed on the first horizontal plate 221. A threaded rod 224 is threadedly connected inside the threaded cylinder 223. The end of the threaded rod 224 rotates through the second horizontal plate 222. A handwheel 225 is keyed to the end of the threaded rod 224. By rotating the threaded rod 224 through the handwheel 225, the threaded cylinder 223 and the lower bracket 211 can be moved telescopically. This makes it easy to adapt to membrane modules 230 of different lengths and facilitates installation. The drive unit 260 includes two self-priming pumps 261, which are mounted on the support plate 110. The outlets of both pumps 261 are connected to water supply pipes 262, which pass through the first support frame 130 and are positioned above the water collection tank 250. The inlets of both pumps 261 are connected to inlet pipes 263, the ends of which are mounted on the membrane module 230. A flow meter 2621 and a self-priming valve 2622 are installed on the water supply pipes 262, and a pressure transmitter 2631 and a pressure gauge 2632 are installed on the inlet pipes 263. The power cabinet 24... The device is electrically connected to the self-priming pump 261, flow meter 2621, pressure transmitter 2631, and pressure gauge 2632. The self-priming pump 261 works to make the sewage inside the sewage tank 120 quickly pass through the membrane module 230. The treated sewage is transferred to the inside of the collection tank 250 through the inlet pipe 263 and the delivery pipe 262, and then re-enters the sewage tank 120 through the guide pipe 251 to maintain water pressure. The membrane flux is detected by the power cabinet 240 using the values ​​of the self-priming pump 261, flow meter 2621, pressure transmitter 2631, and pressure gauge 2632.

[0031] An aeration assembly 270 is also installed on the sewage tank 120. The aeration assembly 270 includes an aeration pump 271 and two annular pipes 273. The aeration pump 271 is mounted on the support plate 110, and its output port is connected to an air supply pipe 272. The two annular pipes 273 are fixed inside the sewage tank 120. The air supply pipe 272 is connected to one of the upper annular pipes 273, and the two annular pipes 273 are connected to each other by a vertical pipe 274. A first horizontal pipe 275 is connected and fixed to one of the lower annular pipes 273, and a section is opened on the first horizontal pipe 275. Aeration holes 276; Two first horizontal pipes 275 are provided, and the aeration holes 276 are evenly distributed on the first horizontal pipes 275. Here, the aeration pump 271 is used to blow air, and the air is delivered to the first horizontal pipes 275 by the air supply pipe 272, the annular pipe 273 and the vertical pipe 274, and output through the aeration holes 276. The air bubbles are used to wash the dirt on the surface of the membrane module 230. Here, the aeration component 270 can wash the dirt on the surface of the membrane module 230 during repeated testing, so as to facilitate the continued membrane flux testing.

[0032] The backwash assembly 280 includes a backwash pump 281 and a second horizontal pipe 283. The backwash pump 281 is mounted on the support plate 110. The outlet of the backwash pump 281 is connected to an outlet pipe 282, which is connected to the second horizontal pipe 283. The second horizontal pipe 283 is fixed between two water supply pipes 262. A backwash valve 2821 is installed on the outlet pipe 282. The inlet of the backwash pump 281 is connected to an inlet pipe 284, which is connected to a water collection tank 250. During backwashing... First, close the self-priming valve 2622 and open the backwash valve 2821. The backwash pump 281 can then transport water from the water collection tank 250 through the inlet pipe 284, outlet pipe 282, and second horizontal pipe 283 to the inside of the water delivery pipe 262. Since the self-priming valve 2622 is closed, the water can act in reverse on the membrane module 230 through the water delivery pipe 262 and inlet pipe 263, thereby rinsing the membrane module 230. This helps to repeatedly conduct experimental tests and improve the accuracy of the experiment.

[0033] Specifically, the working principle of this membrane flux testing experimental device is as follows: During use, based on the length of the membrane module 230, the threaded rod 224 is rotated via handwheel 225, causing the threaded cylinder 223 to extend and retract under the action of the first horizontal plate 221. Once the extension and retraction reaches the appropriate height for the membrane module 230, the membrane module 230 is placed in the corresponding grooves of the lower bracket 211 and the upper movable frame 213, and then fixed in place using clamps and bolts. Next, the membrane mounting bracket 210 is placed inside the wastewater tank 120, and the hook 214 is hung on the wastewater tank 120 for positioning. At this time, the self-priming pump 261 operates, causing the wastewater inside the wastewater tank 120 to quickly pass through the membrane module 230. The treated wastewater is transferred to the inside of the collection tank 250 through the inlet pipe 263 and the delivery pipe 262, and then re-enters the wastewater tank 120 through the guide pipe 251 to maintain water levels. The pressure is measured by power cabinet 240, which uses the values ​​of self-priming pump 261, flow meter 2621, pressure transmitter 2631 and pressure gauge 2632 to detect membrane flux. After the test is completed, the self-priming valve 2622 is closed and the backwash valve 2821 is opened. The backwash pump 281 works to transport water from the water collection tank 250 to the inside of the water delivery pipe 262 through the inlet pipe 284, outlet pipe 282 and the second horizontal pipe 283. Since the self-priming valve 2622 is closed, the water can act in reverse on the membrane module 230 through the water delivery pipe 262 and the inlet pipe 263. At the same time, the aeration component 270 is used to flush the membrane module 230, which helps to repeatedly conduct experimental tests. This reduces disassembly and assembly during the test, making it easier to test two sets at the same time, which is beneficial to make the test more accurate. It is also more convenient to use for testing membrane modules 230 of different lengths.

[0034] It should be noted that the specific models and specifications of the power cabinet 240, self-priming pump 261, flow meter 2621, pressure transmitter 2631, aeration pump 271 and backwash pump 281 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0035] The power supply and operating principles of the power cabinet 240, self-priming pump 261, flow meter 2621, pressure transmitter 2631, aeration pump 271 and backwash pump 281 are clear to those skilled in the art and will not be described in detail here.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A membrane flux test experimental device, comprising a support structure (100) and a test structure (200) mounted on the support structure (100), characterized in that, the support structure (100) comprises a support plate (110), the surface of the support plate (110) is mounted with a sewage tank (120), a first support frame (130) and a second support frame (140), the first support frame (130) and the second support frame (140) are located on both sides of the sewage tank (120); the test structure (200) comprises a membrane mounting frame (210), two membrane assemblies (230), a power cabinet (240), a water collecting tank (250) and a driving member (260), the membrane mounting frame (210) is placed inside the sewage tank (120), an adjusting member (220) is mounted inside the membrane mounting frame (210), the two membrane assemblies (230) are mounted on the membrane mounting frame (210), the power cabinet (240) is mounted on the second support frame (140), the water collecting tank (250) is mounted on the first support frame (130), one side of the water collecting tank (250) is communicated with a flow guide pipe (251), the flow guide pipe (251) is located above the sewage tank (120), the driving member (260) is mounted on the membrane assembly (230), and a backwashing assembly (280) is mounted on the driving member (260).

2. The membrane flux test apparatus of claim 1, wherein, The membrane mounting frame (210) comprises a lower bracket (211) and an upper movable frame (213), the lower bracket (211) is fixed with a plug rod (212), the plug rod (212) is slidingly inserted into the upper movable frame (213), the upper movable frame (213) is fixed with hooks (214) symmetrically, and the hooks (214) are hung on the sewage tank (120).

3. The membrane flux test apparatus of claim 2, wherein, The lower bracket (211) and the upper movable frame (213) are both provided with grooves matched with the membrane assemblies (230), and the membrane assemblies (230) are placed in the grooves and fixed by hoops and bolts.

4. The membrane flux test apparatus of claim 2, wherein, The adjusting member (220) comprises a first horizontal plate (221) and a second horizontal plate (222), the first horizontal plate (221) is fixed on the lower bracket (211), the second horizontal plate (222) is fixed on the upper movable frame (213), the first horizontal plate (221) is fixed with a threaded cylinder (223), the threaded cylinder (223) is internally threadedly connected with a threaded rod (224), the end of the threaded rod (224) is rotatably penetrated through the second horizontal plate (222), and the end of the threaded rod (224) is key-connected with a hand wheel (225).

5. The membrane flux test apparatus of claim 1, wherein, Said driving part (260) comprises two self-suction pumps (261), two said self-suction pumps (261) are installed on said support plate (110), the outlet of two said self-suction pumps (261) is communicated with a water delivery pipe (262), said water delivery pipe (262) penetrates through said first support frame (130) and is placed above said water collecting tank (250), the inlet of two said self-suction pumps (261) is communicated with a water inlet pipe (263), the end of said water inlet pipe (263) is installed on said membrane module (230).

6. The membrane flux test apparatus of claim 5, wherein, Flow meter (2621) and self-suction valve (2622) are installed on said water delivery pipe (262), pressure transmitter (2631) and pressure gauge (2632) are installed on said water inlet pipe (263).

7. The membrane flux test apparatus of claim 1, wherein, Aeration assembly (270) is also installed on said sewage tank (120), said aeration assembly (270) comprises aeration pump (271) and two annular pipes (273), said aeration pump (271) is installed on said support plate (110), the output port of said aeration pump (271) is communicated with a gas delivery pipe (272), two said annular pipes (273) are fixed in the inside of said sewage tank (120), said gas delivery pipe (272) is communicated with one said annular pipe (273) at the upper end, two said annular pipes (273) are communicated through a vertical pipe (274) between them, two first horizontal pipes (275) are fixed and communicated on one said annular pipe (273) at the lower end, aeration holes (276) are evenly arranged on two said first horizontal pipes (275).

8. The membrane flux test apparatus of claim 5, wherein, Backwash assembly (280) comprises backwash pump (281) and second horizontal pipe (283), said backwash pump (281) is installed on said support plate (110), the outlet of said backwash pump (281) is connected with a liquid outlet pipe (282), said liquid outlet pipe (282) is communicated with said second horizontal pipe (283), said second horizontal pipe (283) is fixed and communicated between two said water delivery pipes (262), backwash valve (2821) is installed on said liquid outlet pipe (282), the inlet of said backwash pump (281) is communicated with a liquid inlet pipe (284), said liquid inlet pipe (284) is communicated with said water collecting tank (250).

9. The membrane flux test apparatus of claim 6, wherein, Said power cabinet (240) is electrically connected with said self-suction pump (261), said flow meter (2621), said pressure transmitter (2631) and said pressure gauge (2632).

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