Roll type diffusion dialysis device

Abstract

The utility model relates to the technical field of diffusion dialysis, in particular to a roll type diffusion dialysis device. According to the roll-type diffusion dialysis device, the plurality of membrane assemblies are mounted on the support frame, and the plurality of membrane assemblies are overlapped and are connected in series or in parallel on the support frame, so that the membrane assemblies are simple to connect and convenient to mount and dismount, and the membrane assemblies can be easily increased or reduced according to actual treatment capacity requirements; meanwhile, a membrane component can be additionally arranged above the device by adopting the mounting mode, so that the occupied area is greatly saved; a water inlet, a liquid inlet and a liquid outlet are formed in the membrane component, the water inlet is communicated with a water storage tank through a pipeline, and the liquid inlet is communicated with a raw material tank through a pipeline; the liquid outlet is communicated with a collecting tank through a pipeline, and the pipeline is connected with the supporting frame, so that the device is reasonable and compact in structure, the performance and the working efficiency of the device are improved, and the requirements of diffusion dialysis functions such as acid recovery and alkali recovery are met.

Description

Technical Field

[0001] This utility model relates to the field of diffusion dialysis technology, specifically to a spiral-wound diffusion dialysis device. Background Technology

[0002] Diffusion dialysis (DD), as a novel green chemical technology, is widely considered a new separation technology and an effective means to solve major energy, resource, and environmental problems facing humanity today due to its unique advantages such as high efficiency, practicality, pollution-free operation, and simple process. Diffusion dialysis is the process of a solute in a high concentration migrating through a membrane to a solution with a low concentration; the driving force for mass transfer is the concentration difference across the membrane. However, current experimental setups for diffusion dialysis processes consist of a diffusion dialysis membrane stack, feed tank, metering pump, and valves. These components are loosely connected, making installation and debugging cumbersome, space-consuming, difficult to transport, and inconvenient for experimental operation, further affecting the reliability of experimental data. In recent years, the development of diffusion dialysis technology has mainly focused on industrial process development for the recovery of industrial waste acids and alkalis. However, existing diffusion dialysis systems are all plate-type structures, as shown in Figure 1, which have the following disadvantages: loose layout; bulky equipment; cumbersome installation and commissioning; complex assembly and numerous pipelines; limited processing capacity of a single unit; complex transportation, requiring components and frames to be transported separately; large footprint, and can only be expanded horizontally, not upwards. In view of this, this application proposes a spiral wound diffusion dialysis device with a reasonable structure and compact design, which significantly improves equipment performance and working efficiency, and can meet the needs of diffusion dialysis functions such as acid recovery and alkali recovery. Utility Model Content

[0003] The purpose of this invention is to solve at least one of the technical problems existing in the prior art and to provide a spiral diffusion dialysis device.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A spiral-wound diffusion dialysis device includes a support frame, on which a plurality of membrane modules are mounted. These membrane modules are stacked and connected in series or parallel to each other on the support frame. Each membrane module has an inlet, a liquid inlet, and a liquid outlet. The inlet is connected to a water storage tank via a pipe, and the liquid inlet is connected to a raw material tank via a pipe. The outlet is connected to a collection tank via a pipe, and the pipes are connected to the support frame. Further, a water pump mounted on a base is provided between the inlet and the water storage tank. A first thermometer, a first flow meter, and a first pressure gauge are sequentially installed on the pipe at the outlet of the water pump. Further, a first valve is provided on the pipe between the first thermometer and the first flow meter.

[0005] Furthermore, a pump mounted on a base is installed between the inlet and the raw material tank. A second thermometer, a second flow meter, and a second pressure gauge are sequentially installed on the pipe at the outlet of the pump. Furthermore, a second valve is installed on the pipe between the second thermometer and the second flow meter. Furthermore, the collection tank includes a pure acid tank and a residual acid tank, and the outlet includes a pure acid outlet and a residual acid outlet. The pure acid outlet is connected to the pure acid tank via a pipe; the residual acid outlet is connected to the residual acid tank via a pipe.

[0006] Furthermore, a third pressure gauge is installed on the pipe between the pure acid outlet and the pure acid tank; a fourth pressure gauge is installed on the pipe between the residual acid outlet and the residual acid tank.

[0007] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0008] This application simplifies the connection between membrane modules by installing several membrane modules on a support frame. These modules are stacked, connected in series, or connected in parallel on the support frame, making installation and disassembly easy. The number of membrane modules can be easily increased or decreased according to actual processing capacity requirements. This installation method also allows for the addition of membrane modules above the device, significantly saving space. Each membrane module has an inlet, a liquid inlet, and a liquid outlet. The inlet is connected to a water storage tank via a pipe, and the liquid inlet is connected to a raw material tank via a pipe. The outlet is connected to a collection tank via a pipe, and the pipes are connected to the support frame. This design makes the device structurally sound and compact, thereby improving its performance and efficiency, and meeting the needs of diffusion dialysis functions such as acid recovery and alkali recovery. Attached Figure Description

[0009] Figure 1 is a schematic diagram of the background technology;

[0010] Figure 2 is a schematic diagram of the spiral diffusion dialysis device in a preferred embodiment of the present invention.

[0011] Reference numerals in the attached diagram: 1. Water storage tank; 2. Raw material tank; 3. Collection tank; 301. Pure acid tank; 302. Residual acid tank; 4. Membrane module; 5. Water inlet; 6. Liquid inlet; 7. Pure acid outlet; 8. Pump; 9. First thermometer; 10. First valve; 11. First flow meter; 12. First pressure gauge; 13. Liquid pump; 14. Second thermometer; 15. Second valve; 16. Second flow meter; 17. Second pressure gauge; 18. Residual acid outlet; 19. Third pressure gauge; 20. Fourth pressure gauge. Detailed Implementation

[0012] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0013] Referring to Figure 2, in a preferred embodiment of this utility model, a spiral-wound diffusion dialysis device includes a support frame on which a plurality of membrane modules 4 are mounted. These membrane modules 4 are stacked and connected in series or parallel on the support frame, simplifying the connection between them and facilitating installation and disassembly. The number of membrane modules 4 can be easily increased or decreased according to actual processing capacity requirements. This installation method also allows for the addition of membrane modules above the device, significantly saving space. Each membrane module 4 has an inlet 5, a liquid inlet 6, and an outlet. The inlet 5 is connected to a water storage tank 1 via a pipe; the liquid inlet 6 is connected to a raw material tank 2 via a pipe; and the outlet is connected to a collection tank 3 via a pipe. The pipes are connected to the support frame, making the device structurally sound and compact, thereby improving its performance and efficiency and meeting the needs of diffusion dialysis functions such as acid recovery and alkali recovery.

[0014] As a preferred embodiment of this utility model, it may also have the following additional technical features: a water pump 8 mounted on a base is provided between the water inlet 5 and the water storage tank 1, and a first thermometer 9, a first valve 10, a first flow meter 11, and a first pressure gauge 12 are sequentially provided on the pipe at the water outlet of the water pump 8. This facilitates control of the water inlet flow, ensuring that the water is fully mixed with the raw materials.

[0015] In this embodiment, a pump 13 mounted on a base is provided between the liquid inlet 6 and the raw material tank 2. A second thermometer 14, a second valve 15, a second flow meter 16, and a second pressure gauge 17 are sequentially installed on the pipe at the liquid outlet of the pump 13. This facilitates control of the feed rate, ensuring that the water is fully mixed with the raw materials.

[0016] In this embodiment, the collection tank 3 includes a pure acid tank 301 and a residual acid tank 302. The outlet includes a pure acid outlet 7 and a residual acid outlet 18. The pure acid outlet 7 is connected to the pure acid tank 301 via a pipe; the residual acid outlet 18 is connected to the residual acid tank 302 via a pipe; a third pressure gauge 19 is installed on the pipe between the pure acid outlet 7 and the pure acid tank 301; a fourth pressure gauge 20 is installed on the pipe between the residual acid outlet 18 and the residual acid tank 302. This avoids waste of raw materials and facilitates the recycling of acid.

[0017] The working principle of this utility model is as follows: By installing several membrane modules 4 on the support frame, and stacking and connecting them in series or in parallel on the support frame 3, the connection between the membrane modules is convenient and can be easily expanded; and the pumps, instruments, valves and pipelines between the membrane modules 4 and the tank are all integrated on the support frame, making the device simple in structure, easy to operate, with adjustable processing capacity, high processing efficiency and easy maintenance; the device occupies little space and is easy to transport.

[0018] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0019] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A spiral wound diffusion dialysis device, characterized in that: The device includes a support frame on which several membrane modules are mounted. The membrane modules are stacked on top of each other and connected in series or in parallel on the support frame. Each membrane module has an inlet, a liquid inlet, and a liquid outlet. The inlet is connected to a water storage tank via a pipe, and the liquid inlet is connected to a raw material tank via a pipe. The outlet is connected to a collection tank via a pipe, and the pipes are connected to the support frame.

2. The spiral wound diffusion dialysis apparatus according to claim 1, characterized in that: A water pump mounted on a base is provided between the water inlet and the water storage tank. A first thermometer, a first flow meter, and a first pressure gauge are sequentially installed on the pipe at the water outlet of the water pump.

3. The spiral wound diffusion dialysis apparatus according to claim 2, characterized in that: A first valve is installed on the pipeline between the first thermometer and the first flow meter.

4. The spiral wound diffusion dialysis apparatus according to claim 1, characterized in that: A liquid pump mounted on a base is provided between the liquid inlet and the raw material tank. A second thermometer, a second flow meter, and a second pressure gauge are sequentially installed on the pipe at the liquid outlet of the liquid pump.

5. The spiral wound diffusion dialysis apparatus according to claim 4, characterized in that: A second valve is installed on the pipe between the second thermometer and the second flow meter.

6. The spiral wound diffusion dialysis apparatus according to claim 1, characterized in that: The collection tank includes a pure acid tank and a residual acid tank, and the outlet includes a pure acid outlet and a residual acid outlet. The pure acid outlet is connected to the pure acid tank through a pipe, and the residual acid outlet is connected to the residual acid tank through a pipe.

7. The spiral wound diffusion dialysis apparatus according to claim 6, characterized in that: A third pressure gauge is installed on the pipe between the pure acid outlet and the pure acid tank; a fourth pressure gauge is installed on the pipe between the residual acid outlet and the residual acid tank.

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