Novel proton exchange membrane slurry filtering device

Abstract

The utility model discloses a novel proton exchange membrane slurry filtering device which comprises a material barrel, an anti-corrosion coating is arranged inside the material barrel, a heat exchange interlayer is arranged outside the material barrel, and a circulating water bath system and a circulating filtering system are connected outside the material barrel. The circulating water bath system comprises a water bath kettle, a water inlet hose and a water return hose, a water outlet of the water bath kettle is connected with a circulating water inlet of the anti-corrosion charging basket interlayer through the water inlet hose, and a circulating water outlet of the anti-corrosion charging basket interlayer is connected with a water return port of the water bath kettle through the water return hose; the circulating filtration system comprises a polytetrafluoroethylene hose A, a pump, a polytetrafluoroethylene hose B, a filter and a polytetrafluoroethylene hose C which are connected in sequence, the polytetrafluoroethylene hose A is connected with a waste outlet pipe, and the polytetrafluoroethylene hose C is connected with a qualified slurry outlet pipe. The filtering device provided by the utility model can effectively solve the problem that the slurry cannot be subjected to heat preservation in the transfer and storage processes, realizes circulating filtration of the slurry, and is good in filtering effect and high in filtering efficiency.

Description

Technical Field

[0001] This utility model relates to a novel proton exchange membrane slurry filtration device, belonging to the field of slurry preparation technology. Background Technology

[0002] Currently, the non-renewability and environmental pollution of traditional fossil fuels are driving a global energy structure transformation. Developing and utilizing renewable resources more efficiently and cleanly is an essential path for my country and other countries worldwide to achieve this transformation. Wind and solar energy are affected by various uncontrollable factors such as time, location, and weather, requiring safe and stable energy storage systems to help them overcome the barrier of not being able to operate efficiently around the clock, thereby improving the efficiency and quality of energy structure transformation.

[0003] In the 1980s, Skyllas-Kazacos et al. first proposed the concept of vanadium redox flow batteries (VFBs). These batteries store energy in an electrolyte, and their capacity can be altered by changing the electrolyte concentration and volume. They possess the ability to charge and discharge rapidly at high currents, while also exhibiting superior safety and environmental friendliness. In recent years, numerous megawatt-scale VFB demonstration projects have been implemented, demonstrating significant social and economic benefits.

[0004] Among the various components of flow batteries, proton exchange membranes play a crucial role. Currently, the most commonly used are perfluorosulfonic acid (PFSE) proton exchange membranes, which were the first membrane materials to achieve industrial application in the VFB field, such as DuPont's Nafion membrane. However, Nafion membranes have low ion selectivity, leading to severe vanadium ion permeation, significant energy loss, shortened lifespan, and accelerated capacity decay due to self-discharge. Furthermore, their high cost restricts the large-scale application of Nafion membranes. Therefore, it is necessary to modify Nafion membranes or develop other types of proton exchange membranes.

[0005] Other materials, such as polybenzimidazole (PBI), polyetheretherketone (PEEK), and polysulfone (PSF) resins, possess excellent properties such as low cost and good mechanical properties. They can be used to prepare non-fluorinated proton exchange membranes with ion conductivity through methods such as sulfonation and quaternization. However, this type of membrane is mostly in the development stage, and its formulations and processes are not yet mature.

[0006] Currently, after the slurry for proton exchange membranes is prepared, it needs to be filtered. During the filtration process, plastic buckets are used as containers for storing and transferring the slurry. The slurry passes through the filter screen by its own gravity. The mesh size of the filter screen cannot be too large, otherwise the slurry will not be able to pass through the filter screen normally or the efficiency will be too low.

[0007] The existing filtration process is too simple. The slurry cannot be kept warm during transfer and storage, causing it to solidify and become unusable. Furthermore, the filtration process lacks power, relying solely on the slurry's own gravity to pass through the filter screen. This necessitates a low mesh size, resulting in poor filtration efficiency and the inability to filter out many impurities. Ultimately, this manifests as poor membrane surface quality, short lifespan, and, due to the lack of power support, low filtration efficiency, increasing time costs.

[0008] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0009] This invention addresses the shortcomings of the prior art by providing a novel proton exchange membrane slurry filtration device, which can effectively solve the problem of the inability to keep the slurry warm during transfer and storage, and achieve slurry circulation filtration with good filtration effect and high filtration efficiency.

[0010] To solve the above technical problems, the present invention adopts the following technical solution:

[0011] A novel proton exchange membrane slurry filtration device includes a material tank, the inside of which is provided with an anti-corrosion coating, the outside of which is provided with a heat exchange jacket, and the outside of which is connected to a circulating water bath system and a circulating filtration system.

[0012] The circulating water bath system includes a water bath, an inlet hose, and a return hose. The outlet of the water bath is connected to the circulating water inlet of the anti-corrosion material tank jacket through the inlet hose, and the circulating water outlet of the anti-corrosion material tank jacket is connected to the return water inlet of the water bath through the return hose.

[0013] The circulating filtration system includes a PTFE hose A, a pump, a PTFE hose B, a filter, and a PTFE hose C connected in sequence. A waste discharge pipe is connected to PTFE hose A, and a qualified slurry discharge pipe is connected to PTFE hose C.

[0014] Furthermore, the inlet end of the PTFE hose A is connected to the bottom of the material tank, and the outlet end of the PTFE hose A is connected to the feed inlet of the pump.

[0015] Furthermore, PTFE hose B connects the pump outlet to the filter inlet.

[0016] Furthermore, PTFE hose C connects the filter outlet to the wall of the filter tank.

[0017] Furthermore, the filter consists of an outer filter housing and an inner replaceable filter screen.

[0018] Furthermore, a hand valve A is installed on the waste outlet pipe, and the hand valve A is located at the end of the waste outlet pipe near the PTFE hose A.

[0019] Furthermore, a hand valve B is installed on the PTFE hose A, and the hand valve B is located behind the connection between the PTFE hose A and the waste outlet pipe.

[0020] Furthermore, a hand valve C is installed on the qualified slurry outlet pipe, and the hand valve C is located at the end of the qualified slurry outlet pipe near the PTFE hose C.

[0021] Furthermore, a hand valve D is installed on the PTFE hose C, and the hand valve D is located behind the connection between the PTFE hose C and the qualified slurry outlet pipe.

[0022] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0023] The circulating hot water flow system provides a stable heat source for the material tank. The inside of the material tank is coated with an anti-corrosion coating to ensure that the slurry will not corrode the material tank and can remain in a flowing state in the material tank for a long time, avoiding condensation and solidification, and effectively solving the problem of the slurry's inability to keep warm.

[0024] The material tank, pump and filter are connected by corrosion-resistant PTFE hoses. The pump provides power to achieve circulating filtration, so that the slurry has enough pressure to pass through the large mesh filter screen, while filtering out more impurities, improving filtration capacity, reducing filtration time and maximizing the overall quality of the finished membrane.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] In the diagram, 1-water bath, 2-inlet hose, 3-material tank, 4-return hose, 5-PTFE hose A, 6-waste outlet pipe, 7-pump, 8-PTFE hose B, 9-filter, 10-PTFE hose C, 11-qualified slurry outlet pipe, 12-hand valve A, 13-hand valve B, 14-hand valve C, 15-hand valve D. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0029] like Figure 1 As shown, this utility model provides a novel proton exchange membrane slurry filtration device, including a material tank 3. The material tank 3 has an anti-corrosion coating inside and a heat exchange jacket outside. The material tank 3 is connected to a circulating water bath system and a circulating filtration system. The circulating water bath system provides a heat source for the constant temperature storage of the slurry, and the circulating filtration system is used for the circulating filtration of the slurry.

[0030] The circulating water bath system includes a water bath 1, an inlet hose 2, and a return hose 4. The outlet of the water bath 1 is connected to the circulating water inlet of the anti-corrosion material tank 3 through the inlet hose 2, and the circulating water outlet of the anti-corrosion material tank 3 is connected to the return water inlet of the water bath 1 through the return hose 4.

[0031] The circulating filtration system includes a PTFE hose A5, a pump 7, a PTFE hose B8, a filter 9, and a PTFE hose C10 connected in sequence.

[0032] The inlet end of the PTFE hose A5 is connected to the bottom of the material barrel 3, and the outlet end of the PTFE hose A5 is connected to the feed inlet of the pump 7.

[0033] The PTFE hose B8 connects the outlet of the pump 7 to the inlet of the filter 9.

[0034] The PTFE hose C10 connects the outlet of filter 9 to the wall of the material tank 3.

[0035] Pump 7 provides power for the circulation and filtration of slurry, enabling the slurry to pass through the large-mesh filter screen with sufficient pressure while filtering out more impurities, thus improving filtration capacity and reducing filtration time.

[0036] The filter 9 consists of an outer filter housing and an inner replaceable filter screen.

[0037] Waste outlet pipe 6 is connected to the PTFE hose A5, and qualified slurry outlet pipe 11 is connected to the PTFE hose C10.

[0038] The waste discharge pipe 6 is used for cleaning the material bucket 3 and discharging waste. A hand valve A12 is installed on the waste discharge pipe 6, and the hand valve A12 is located at the end of the waste discharge pipe 6 near the PTFE hose A5.

[0039] A hand valve B13 is installed on the PTFE hose A5, and the hand valve B13 is located behind the connection between the PTFE hose A5 and the waste outlet pipe 6.

[0040] A hand valve C14 is installed on the qualified slurry outlet pipe 11, and the hand valve C14 is located at the end of the qualified slurry outlet pipe 11 near the PTFE hose C10.

[0041] A hand valve D15 is installed on the PTFE hose C10. The hand valve D15 is located behind the connection between the PTFE hose C10 and the qualified slurry outlet pipe 11.

[0042] The specific working principle of this utility model is as follows:

[0043] During operation, the circulating hot water system provides a stable heat source for the material tank. The inside of the material tank is coated with an anti-corrosion coating to ensure that the slurry will not corrode the material tank and can remain in a flowing state in the material tank for a long time to avoid solidification due to condensation.

[0044] The material tank, pump, and filter are connected by corrosion-resistant PTFE hoses. The pump provides power to achieve circulating filtration, allowing the slurry to pass through the large-mesh filter screen with sufficient pressure, while filtering out more impurities, improving filtration capacity, and reducing filtration time.

[0045] The filter consists of a housing and a filter screen. The filter screen is low-cost and replaceable, which reduces filtration costs. The slurry processed by the device forms a film with good surface quality and long service life, thus maximizing the overall quality of the finished membrane.

[0046] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A novel proton exchange membrane slurry filtration device, characterized in that: Includes a material tank (3), the inside of which is provided with an anti-corrosion coating, the outside of which is provided with a heat exchange jacket, and the outside of which is connected to a circulating water bath system and a circulating filtration system; The circulating water bath system includes a water bath (1), an inlet hose (2), and a return hose (4). The outlet of the water bath (1) is connected to the circulating water inlet of the anti-corrosion material tank (3) through the inlet hose (2), and the circulating water outlet of the anti-corrosion material tank (3) is connected to the return water inlet of the water bath (1) through the return hose (4). The circulating filtration system includes a PTFE hose A (5), a pump (7), a PTFE hose B (8), a filter (9), and a PTFE hose C (10) connected in sequence. A waste outlet pipe (6) is connected to the PTFE hose A (5), and a qualified slurry outlet pipe (11) is connected to the PTFE hose C (10).

2. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: The inlet end of the PTFE hose A (5) is connected to the bottom of the material barrel (3), and the outlet end of the PTFE hose A (5) is connected to the feed inlet of the pump (7).

3. The novel proton exchange membrane slurry filtration device as described in claim 2, characterized in that: PTFE hose B (8) connects the outlet of the pump (7) to the inlet of the filter (9).

4. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: The PTFE hose C (10) connects the outlet of the filter (9) to the wall of the bucket (3).

5. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: The filter (9) consists of an outer filter housing and an inner replaceable filter screen.

6. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: A hand valve A (12) is installed on the waste outlet pipe (6), and the hand valve A (12) is located at the end of the waste outlet pipe (6) near the PTFE hose A (5).

7. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: A hand valve B (13) is installed on the PTFE hose A (5), and the hand valve B (13) is located behind the connection between the PTFE hose A (5) and the waste outlet pipe (6).

8. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: A hand valve C (14) is installed on the qualified slurry outlet pipe (11), and the hand valve C (14) is located at the end of the qualified slurry outlet pipe (11) near the PTFE hose C (10).

9. The novel proton exchange membrane slurry filtration device as described in claim 1, characterized in that: A hand valve D (15) is installed on the PTFE hose C (10), and the hand valve D (15) is located behind the connection between the PTFE hose C (10) and the qualified slurry outlet pipe (11).

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