PES proton exchange membrane testing device

Abstract

The utility model relates to a testing device of a PES proton exchange membrane. The testing device comprises a testing frame, the test frame is rotatably connected with the bottom of the gas spring, the top of the gas spring is rotatably connected with the cover plate, and a handle is fixed at the front end of the cover plate. According to the testing device for the PES proton exchange membrane, the air supply heating mechanism is arranged, moisture is conveyed through an air supply pipe, and the moisture is distributed through a first distribution pipe and a second distribution pipe and then is uniformly sprayed to the upper side and the lower side of the PES proton exchange membrane, so that the traditional mode of conveying the moisture through a backflow channel is changed; meanwhile, the air pipe conveys air, so that the air is shunted and conveyed into the conveying frame through the conveying pipe, and then the air is heated by the electric heating wire and then reaches the upper side and the lower side of the PES proton exchange membrane, so that the test accuracy is improved; and uniformly heating the upper side and the lower side of the PES proton exchange membrane.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of proton exchange membrane conductivity test, specifically to the testing arrangement of PES proton exchange membrane. BACKGROUND

[0002] In the field of PES proton exchange membrane fuel cell, PES proton exchange membrane is the core material of fuel cell, which plays an important role in conducting protons and isolating anode and cathode. Among them, the conductivity reflects the conductivity of PES proton exchange membrane, which is directly related to the performance of PES proton exchange membrane after preparing membrane electrode, and is the main index of the performance of PES proton exchange membrane itself. Before PES proton exchange membrane is formally put into use, the conductivity of PES proton exchange membrane under certain humidity is usually measured to screen out proton exchange membranes meeting the requirements.

[0003] However, the existing proton exchange membrane conductivity test device still has some deficiencies, for example, the literature with the announcement number CN116520024A discloses a proton exchange membrane conductivity test device. The positioning table can place the proton exchange membrane to be tested. When the proton exchange membrane is placed, the cover is placed on the base. At this time, the second air flow channel is communicated with the first air flow channel, and the communication channel of the positioning table is communicated with the first chamber and the second chamber on both sides. It can be understood that the upper and lower sides of the proton exchange membrane on the positioning table are respectively communicated with the first chamber and the second chamber. The external humidity device can be inserted into the air inlet hole of the base. The humidity can pass through the air inlet hole, the first chamber, the first air flow channel, the second air flow channel and the second chamber in turn. Since the first chamber and the second chamber have humidity, the upper and lower sides of the proton exchange membrane have humidity. At this time, the accuracy of measuring the conductivity of the proton exchange membrane under certain humidity is high.

[0004] However, when the PES proton exchange membrane is heated, since the heater is only provided at one place, the PES proton exchange membrane is prone to uneven heating. At the same time, the humidity is transported through the flow channel, which has low transport efficiency and uneven humidity transport, resulting in different wetness of the upper and lower surfaces of the PES proton exchange membrane, which affects the subsequent test. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] To solve the above technical problems, the utility model provides a testing device for PES proton exchange membrane.

[0007] II) Technical scheme

[0008] Based on this, the utility model provides the following technical scheme: a testing device for PES proton exchange membrane, comprising a testing frame;

[0009] The test frame is rotatably connected to the bottom of the gas spring, the top of the gas spring is rotatably connected to the cover plate, the front end of the cover plate is fixed with a handle, and the cover plate is hinged to the top of the test frame. A gas supply heating mechanism is installed inside the test frame.

[0010] The gas supply and heating mechanism includes a gas supply pipe, a first branch pipe, a nozzle, a second branch pipe, and a hot gas delivery mechanism. The gas supply pipe is embedded in the rear end of the test frame. The gas supply pipe is connected to the rear ends of the first branch pipe and the second branch pipe, respectively. The front ends of the first branch pipe and the second branch pipe are each provided with a nozzle, and the nozzles on the first branch pipe and the second branch pipe are arranged symmetrically. The bottom of the gas supply pipe is provided with a hot gas delivery mechanism.

[0011] Preferably, a conductive rod is embedded in the front end of the cover plate, a humidity sensor and a temperature sensor are respectively installed on the front and rear sides of the left end of the test frame, and a support rod is fixed in the middle of the test frame.

[0012] Preferably, the first and second diverter pipes are arranged symmetrically, one above the other.

[0013] Preferably, the hot gas delivery mechanism is provided in two sets, arranged opposite each other along the upper and lower parts of the gas delivery pipe.

[0014] Preferably, the hot air conveying mechanism includes a vertical rod, a fixed frame, an air duct, a conveying pipe, a conveying frame, a heating wire, a top block, and an elastic buffer. The top of the vertical rod is fixed to the air supply pipe, and the bottom of the vertical rod is fixed to the fixed frame. The top of the elastic buffer is fixed to the fixed frame, and the bottom of the elastic buffer is fixed to the top block. An air duct passes through the middle of the fixed frame. The conveying pipe is connected to the rear end of the conveying frame. A heating wire is embedded in the top of the conveying frame.

[0015] Preferably, the fixed frame has top blocks distributed at equal intervals inside, and the top blocks slide in contact with the inside of the fixed frame.

[0016] Preferably, there are two sets of conveying pipes, and the rear end of each conveying pipe is connected to the air duct. There are also two sets of hot air conveying mechanisms, which are respectively installed on the first and second branch pipes. The connection between the conveying frame and the heating wire is hollow, and there are two sets of conveying frames, which are respectively connected to the two sets of conveying pipes.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a testing device for PES proton exchange membranes, which has the following beneficial effects:

[0019] The testing device of the PES proton exchange membrane is provided with a gas feeding and heating mechanism, moisture is fed through a gas feeding pipe, the moisture is evenly sprayed on the upper and lower sides of the PES proton exchange membrane after being divided by a shunt pipe one and a shunt pipe two, the traditional moisture feeding mode through a reflux channel is changed, the moisture can be evenly sprayed on the upper and lower sides of the PES proton exchange membrane, the test accuracy is improved, and the air is fed through the air pipe, so that the air is fed into the conveying frame through the conveying pipe, then the air is heated by the electric heating wire, and then the air is heated on the upper and lower sides of the PES proton exchange membrane. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic view of the gas feeding and heating mechanism of the utility model;

[0022] Figure 3 It is a local front view structure schematic view of the gas feeding and heating mechanism of the utility model;

[0023] Figure 4 It is a three-dimensional structure schematic view of the hot gas conveying mechanism of the utility model;

[0024] Figure 5 It is an internal structure schematic view of the fixed frame of the utility model.

[0025] In the drawing: test frame-1, gas spring-2, cover plate-3, handle-4, conductive rod-5, humidity sensor-6, temperature sensor-7, gas feeding and heating mechanism-8, support rod-9, gas feeding pipe-81, shunt pipe one-82, spray head-83, shunt pipe two-84, hot gas conveying mechanism-85, vertical rod-851, fixed frame-852, air pipe-853, conveying pipe-854, conveying frame-855, electric heating wire-856, top block-857, elastic buffer-858. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figure 1The testing device of PES proton exchange membrane comprises a testing frame 1; the testing frame 1 is rotationally connected with the bottom of an air spring 2; the top of the air spring 2 is rotationally connected with a cover plate 3; the front end of the cover plate 3 is fixedly provided with a handle 4; the cover plate 3 is hingedly connected with the top of the testing frame 1; a gas feeding and heating mechanism 8 is arranged in the testing frame 1; the front end of the cover plate 3 is embeddedly provided with a conducting rod 5; a humidity sensor 6 and a temperature sensor 7 are respectively arranged on the left end of the testing frame 1; and a supporting rod 9 is fixedly arranged in the middle of the testing frame 1.

[0028] In some embodiments, the air spring 2 is an industrial accessory capable of supporting, buffering, braking, height adjusting and angle adjusting; the humidity sensor 6 is an electronic device for measuring the relative humidity of the environment; the temperature sensor 7 is a sensor capable of sensing temperature and converting it into an available output signal; the humidity sensor 6 and the temperature sensor 7 are connected with the mobile device and are used for monitoring the temperature and humidity in the testing frame 1; and the testing frame 1 can be provided with air vents for discharging air.

[0029] Please refer to Figures 2-3 The gas feeding and heating mechanism 8 comprises a gas feeding pipe 81, a shunt pipe one 82, a spray head 83, a shunt pipe two 84 and a hot gas conveying mechanism 85; the gas feeding pipe 81 is embeddedly arranged at the rear end of the testing frame 1; the gas feeding pipe 81 is in communication with the rear ends of the shunt pipe one 82 and the shunt pipe two 84; the front ends of the shunt pipe one 82 and the shunt pipe two 84 are provided with the spray head 83; the spray head 83 on the shunt pipe one 82 and the spray head 83 on the shunt pipe two 84 are symmetrically arranged; the bottom of the gas feeding pipe 81 is provided with the hot gas conveying mechanism 85; the shunt pipe one 82 and the shunt pipe two 84 are symmetrically arranged in an up-down manner; and the hot gas conveying mechanism 85 is provided with two groups which are arranged in an up-down manner relative to the gas feeding pipe 81.

[0030] In some embodiments, the gas feeding pipe 81 is connected with an external humidity conveying device which is not shown in the figure; there are many sources of humidity, such as the nitrogen humidity control device with the publication number CN212622378U which can produce humid nitrogen or a mixture of humid nitrogen and dry nitrogen; a wind pipe 853 is connected with an external air blower which is not shown in the figure; of course, the air blower can also be connected with a hair dryer and other devices capable of conveying air.

[0031] Please refer to Figures 4-5, the test device of PES proton exchange membrane, the hot air conveying mechanism 85 comprises a vertical rod 851, a fixed frame 852, an air pipe 853, a conveying pipe 854, a conveying frame 855, an electric heating wire 856, a top block 857 and an elastic buffer 858, the top of the vertical rod 851 is fixed with the air conveying pipe 81, the bottom of the vertical rod 851 is fixedly connected with the fixed frame 852, the top of the elastic buffer 858 is fixed with the fixed frame 852, and the bottom of the elastic buffer 858 is fixed with the top block 857, the middle part of the fixed frame 852 penetrates through the air pipe 853, the conveying pipe 854 is in communication with the rear end of the conveying frame 855, and the top of the conveying frame 855 is embedded with the electric heating wire 856.

[0032] In some embodiments, the inside of the fixed frame 852 is equidistantly provided with the top block 857, the top block 857 is in sliding fit with the inside of the fixed frame 852, the conveying pipe 854 is provided with two groups, the rear end of the conveying pipe 854 is in communication with the air pipe 853, the hot air conveying mechanism 85 is provided with two groups, is installed on the shunt pipe one 82 and the shunt pipe two 84 respectively, the connection part between the conveying frame 855 and the electric heating wire 856 is in a cavity shape, the conveying frame 855 is provided with two groups, is connected with the two groups of conveying pipes 854 respectively, the electric heating wire 856 is a common electric heating wire, also can be called a heating wire, is used for heating air, thereby forming hot air, heating the PES proton exchange membrane, and the elastic buffer 858 is a common elastic buffer, is used for buffering.

[0033] In summary, in use, the cover plate 3 is opened, then the PES proton exchange membrane to be tested is prevented on the bottom of the support rod 9;

[0034] Then the cover plate 3 is closed, so that the conductive rod 5 is in contact with the top of the PES proton exchange membrane;

[0035] Then the humidity is conveyed through the air conveying pipe 81, the humidity is divided through the shunt pipe one 82 and the shunt pipe two 84, then is sprayed through the nozzles 83 on the shunt pipe one 82 and the shunt pipe two 84, then is uniformly sprayed on the upper and lower sides of the PES proton exchange membrane, changes the traditional humidity conveying mode through the reflux channel, so that the humidity can be uniformly sprayed on the upper and lower sides of the PES proton exchange membrane, and the test accuracy is increased;

[0036] At the same time, the air pipe 853 conveys air, so that the air is conveyed into the conveying frame 855 through the conveying pipe 854, then the air is heated through the electric heating wire 856, then is to the upper and lower sides of the PES proton exchange membrane, uniformly heats the upper and lower sides of the PES proton exchange membrane, then the positive electrode and the negative electrode of the electrochemical workstation can be electrically connected through the conductive rod 5, when the cover plate 3 is closed on the test frame 1, the two conductive rods 5 press the PES proton exchange membrane, so as to test the conductivity of the proton exchange membrane;

[0037] When the air duct 853 transports air, the top block 857 will absorb the polarized force on the air duct 853 by pressing the elastic buffer 858, so that the air duct 853 transports air smoothly.

[0038] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply are common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the wiring arrangement of the utility model will not be explained in detail.

[0039] The control mode of the utility model is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the technical personnel in the art, and the provision of the power supply also belongs to the common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the circuit connection of the utility model will not be explained in detail.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A test device for PES proton exchange membranes, characterized by: It comprises a test frame (1); The test frame (1) is rotatably connected with the bottom of the gas spring (2), the top of the gas spring (2) is rotatably connected with the cover plate (3), the front end of the cover plate (3) is fixed with the handle (4), and the cover plate (3) is hinged with the top of the test frame (1), the inside of the test frame (1) is provided with a gas feeding and heating mechanism (8); The gas feeding and heating mechanism (8) comprises a gas feeding pipe (81), a shunt pipe I (82), a spray head (83), a shunt pipe II (84) and a hot gas conveying mechanism (85), the gas feeding pipe (81) is embeddedly installed at the rear end of the test frame (1), the gas feeding pipe (81) is respectively communicated with the rear ends of the shunt pipe I (82) and the shunt pipe II (84), the front ends of the shunt pipe I (82) and the shunt pipe II (84) are provided with the spray head (83), the spray head (83) on the shunt pipe I (82) is symmetrically arranged with the spray head (83) on the shunt pipe II (84), and the bottom of the gas feeding pipe (81) is provided with the hot gas conveying mechanism (85).

2. The test device for PES proton exchange membrane according to claim 1, characterized in that: The front end of the cover plate (3) is embeddedly installed with the conductive rod (5), the inside of the left end of the test frame (1) is respectively installed with the humidity sensor (6) and the temperature sensor (7) from front to back, and the middle of the test frame (1) is fixed with the supporting rod (9).

3. The test device for PES proton exchange membrane according to claim 1, characterized in that: The shunt pipe I (82) and the shunt pipe II (84) are symmetrically arranged above and below each other.

4. The test device for PES proton exchange membrane according to claim 1, characterized in that: The hot gas conveying mechanism (85) is provided with two groups, which are arranged opposite to each other along the upper and lower parts of the gas feeding pipe (81).

5. The test device for PES proton exchange membrane according to claim 1, characterized in that: The hot gas conveying mechanism (85) comprises a vertical rod (851), a fixed frame (852), an air pipe (853), a conveying pipe (854), a conveying frame (855), an electric heating wire (856), a top block (857) and an elastic buffer (858), the top of the vertical rod (851) is fixed with the gas feeding pipe (81), the bottom of the vertical rod (851) is fixedly connected with the fixed frame (852), the top of the elastic buffer (858) is fixed with the fixed frame (852), the bottom of the elastic buffer (858) is fixed with the top block (857), the middle of the fixed frame (852) penetrates the air pipe (853), the rear end of the conveying pipe (854) is communicated with the conveying frame (855), and the top of the conveying frame (855) is embeddedly installed with the electric heating wire (856).

6. The test device for PES proton exchange membrane according to claim 5, characterized in that: The inside of the fixed frame (852) is equidistantly distributed with the top block (857), and the top block (857) is slidingly matched with the inside of the fixed frame (852).

7. The test device for PES proton exchange membrane according to claim 5, characterized in that: The conveying pipe (854) is provided with two groups, and the rear ends of the conveying pipes (854) are communicated with the air pipe (853).

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