Degassing testing device for solid oxide fuel cell (SOFC) raw material water gas-permeable membrane

Abstract

The utility model relates to the technical field of SOFC (Solid Oxide Fuel Cell) cogeneration systems, in particular to an SOFC raw material water gas-permeable membrane degassing testing device, which comprises a water purification device, the water purification device is used for preparing deionized water, the output end of the water purification device is communicated with a water storage tank A, the water storage tank A is used for storing deionized water, and the water storage tank A is communicated with a water outlet of the water purification device. The output end of the water storage tank A is communicated with a booster water pump, one end of the booster water pump is communicated to the breathable film, and water is pumped into the breathable film after being pressurized by the booster water pump. The special experimental testing device is designed aiming at the degassing rate of the gas-permeable membrane, so that the model selection and development difficulty of the gas-permeable membrane is reduced, the development and verification period is shortened, the development efficiency of an SOFC (Solid Oxide Fuel Cell) system is improved, raw material water is ensured to meet the quality requirement, the service life of the system is prolonged, and the requirements of raw material water required by a natural gas and methanol reforming reactor of the SOFC system can be met; and accurate experimental data support is provided for development of natural gas and methanol reforming reactors.

Description

Technical Field

[0001] This utility model belongs to the technical field of SOFC combined heat and power system, specifically relating to a test device for degassing SOFC feed water permeable membrane. Background Technology

[0002] Feed gas pretreatment in solid oxide fuel cell (SOFC) systems, especially water-permeable membrane degassing technology, is a crucial step in ensuring battery performance and extending lifespan. This technology primarily addresses the negative impact of moisture on battery performance by selectively removing gases from the feed water using a permeable membrane.

[0003] However, the degassing effects of existing permeable membranes vary, and there is a lack of dedicated degassing performance testing devices to evaluate the stability and efficiency of degassing membranes, the balance between permeation rate and selectivity, etc. This utility model provides a degassing testing device for SOFC feed water permeable membranes, which can professionally evaluate the degassing effect of permeable membranes, including key parameters such as dissolved oxygen removal rate under different vacuum conditions and different flow rates, and flow resistance of degassing membranes at different flow rates. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a test device for degassing of SOFC feed water permeable membranes, which reduces the difficulty of selecting and developing permeable membranes, shortens the development and verification cycle, improves the development efficiency of SOFC systems, ensures that feed water meets quality requirements, and extends the service life of the system. It solves the problem that currently there is no professional testing device for performance testing and evaluation, and the actual test results of the system are generally used for reference, resulting in a long development cycle and the need for repeated development and confirmation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a SOFC raw material water permeable membrane degassing test device, comprising a water purification device for producing deionized water, an output end of which is connected to a water storage tank A for storing deionized water, an output end of which is connected to a booster pump, one end of which is connected to the permeable membrane, the booster pump pressurizes the water and pumps it into the permeable membrane, a flow regulating valve, a flow meter and a pressure gauge A are sequentially installed on the connecting pipeline between the booster pump and the permeable membrane, a vacuum pump is also connected to one side of the permeable membrane, the vacuum pump draws negative pressure to remove air from the deionized water, the degassed deionized water flows into a transparent water tank, and wastewater flows into a wastewater tank, the output end of which is connected to a water storage tank B.

[0006] Preferably, a pressure gauge B is installed on the connecting pipe between the breathable membrane and the vacuum pump.

[0007] Preferably, a pressure gauge C is installed on the connecting pipe between the breathable membrane and the transparent water tank.

[0008] Preferably, the transparent water tank is equipped with a dissolved oxygen meter and a conductivity meter. The dissolved oxygen meter is used to test the oxygen content of the deionized water, and the conductivity meter is used to test the conductivity of the deionized water.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model designs a special test device for the degassing rate of the permeable membrane, which reduces the difficulty of selecting and developing permeable membranes, shortens the development and verification cycle, improves the development efficiency of SOFC systems, ensures that the feed water meets the quality requirements, improves the service life of the system, and can meet the feed water requirements of SOFC system natural gas and methanol reforming reactors, providing accurate experimental data support for the development of natural gas and methanol reforming reactors. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the testing device of this utility model.

[0011] In the diagram: 1. Water purification device; 2. Water storage tank A; 3. Booster pump; 4. Flow regulating valve; 5. Flow meter; 6. Pressure gauge A; 7. Breathable membrane; 8. Vacuum pump; 9. Wastewater tank; 10. Pressure gauge B; 11. Transparent water tank; 12. Water storage tank B; 13. Pressure gauge C; 14. Dissolved oxygen meter; 15. Conductivity meter. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0013] The following reference Figure 1 This application describes an embodiment of an SOFC feed water permeable membrane degassing test device.

[0014] A SOFC feed water permeable membrane degassing test device includes a water purification device 1, characterized in that: the water purification device 1 is used to produce deionized water, and the output end of the water purification device 1 is connected to a water storage tank A2 for storing deionized water. The output end of the water storage tank A2 is connected to a booster pump 3, one end of which is connected to a permeable membrane 7. After boosting, the booster pump 3 pumps water into the permeable membrane 7. A flow regulating valve 4, a flow meter 5, and a pressure gauge A6 are sequentially installed on the connecting pipeline between the booster pump 3 and the permeable membrane 7. The flow rate of water flowing through the permeable membrane 7 is adjusted by the flow regulating valve 4, and the flow rate of water flowing through the permeable membrane 7 is measured by the flow meter 5. A vacuum pump 8 is also connected to one side of the permeable membrane 7. The air in the deionized water is removed by the vacuum pump 8 through negative pressure. The degassed deionized water flows into a transparent water tank 11, and the wastewater flows into a wastewater tank 9. The output end of the transparent water tank 11 is connected to a water storage tank B12.

[0015] Furthermore, a pressure gauge B10 is installed on the connecting pipe between the breathable membrane 7 and the vacuum pump 8, and the flow resistance of the breathable membrane 7 is measured by pressure gauge A6 and pressure gauge B10.

[0016] Furthermore, a pressure gauge C13 is installed on the connecting pipe between the breathable membrane 7 and the transparent water tank 11 to measure the vacuum degree of the breathable membrane 7.

[0017] In a further embodiment, a dissolved oxygen meter 14 and a conductivity meter 15 are installed on the transparent water tank 11. The dissolved oxygen meter 14 is used to test the oxygen content of the deionized water, and the conductivity meter 15 is used to test the conductivity of the deionized water.

[0018] The specific working process of a SOFC raw material water permeable membrane degassing test device according to the above embodiments is described as follows: Deionized water is prepared by water purification device 1 and stored in water storage tank A2. After being pressurized by booster water pump 3, the water is pumped into permeable membrane 7. Permeable membrane 7 is subjected to negative pressure by vacuum pump 8 to remove air from the deionized water. The degassed deionized water flows into transparent water tank 11. Whether there are obvious bubbles is observed through transparent water tank 11. Then the water flows into water storage tank B12 for storage. The flow rate of water passing through permeable membrane 7 is measured by flow meter 5, the flow resistance of permeable membrane 7 is measured by pressure gauge A6 and pressure gauge B10, the vacuum degree of permeable membrane 7 is measured by pressure gauge C13, the oxygen content of deionized water is tested by dissolved oxygen meter 14, the conductivity of deionized water is tested by conductivity meter 15, and the flow rate of water flowing through permeable membrane 7 is adjusted by flow regulating valve 4.

[0019] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0020] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A test device for degassing SOFC feed water permeable membrane, comprising a water purification device (1), characterized in that: The water purification device (1) is used to produce deionized water. The output end of the water purification device (1) is connected to a water storage tank A (2). The water storage tank A (2) is used to store deionized water. The output end of the water storage tank A (2) is connected to a booster pump (3). One end of the booster pump (3) is connected to a breathable membrane (7). After boosting the pressure, the booster pump (3) pumps the water into the breathable membrane (7). A flow regulating valve (4), a flow meter (5), and a pressure gauge A (6) are sequentially installed on the connecting pipeline between the booster pump (3) and the breathable membrane (7). A vacuum pump (8) is also connected to one side of the breathable membrane (7). The air in the deionized water is removed by the vacuum pump (8) drawing negative pressure on the breathable membrane (7). The degassed deionized water flows into a transparent water tank (11), and the wastewater flows into a wastewater tank (9). The output end of the transparent water tank (11) is connected to a water storage tank B (12).

2. The SOFC feed water permeable membrane degassing test device according to claim 1, characterized in that: A pressure gauge B (10) is installed on the connecting pipe between the breathable membrane (7) and the vacuum pump (8).

3. The SOFC feed water permeable membrane degassing test device according to claim 1, characterized in that: A pressure gauge C (13) is installed on the connecting pipe between the breathable membrane (7) and the transparent water tank (11).

4. The SOFC feed water permeable membrane degassing test device according to claim 1, characterized in that: The transparent water tank (11) is equipped with a dissolved oxygen meter (14) and a conductivity meter (15). The dissolved oxygen meter (14) is used to test the oxygen content of the deionized water, and the conductivity meter (15) is used to test the conductivity of the deionized water.

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