PEM electrolyzed water bipolar plate dispensing device

Abstract

The utility model provides a PEM electrolyzed water bipolar plate sealing dispensing device which comprises a machine frame body, an upper glue injection area and a lower dispensing table are arranged on the machine frame body, the lower dispensing table is used for placing a bipolar plate, a dispensing mold located over the lower dispensing table is arranged in the upper glue injection area, the dispensing mold is arranged on the machine frame body in a lifting and sliding mode, and the upper glue injection area and the lower dispensing table are arranged on the machine frame body. A glue injection mechanism is arranged right above the dispensing mold, the dispensing mold is provided with a glue outlet area which is correspondingly arranged along the position track of the bipolar plate sealing groove, and the glue outlet area is composed of a plurality of micropores which are arranged in an array; the glue dispensing device has the beneficial effects that one-time glue dispensing can be carried out on a sealing groove in a bipolar plate with a larger area, the glue dispensing efficiency is greatly improved, the problems of glue solution curing and initial setting are solved, in addition, the discharging amount can be effectively controlled, and glue overflowing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bipolar plate dispensing devices, in particular to a PEM water electrolysis bipolar plate dispensing device. Background Art

[0002] Hydrogen is considered the most ideal energy carrier due to its abundant reserves, clean, pollution-free, and high efficiency. Among the many hydrogen production technologies, water electrolysis hydrogen production technology has the advantages of pure gas, high electrolysis efficiency, simple structure, stable performance, long life, and safety. The PEM water electrolysis hydrogen production device uses a proton exchange membrane to electrolyze water to produce hydrogen. After the water reacts, hydrogen and oxygen are produced at the cathode and anode of the electrolyzer, respectively. Due to its compact structure and high gas production efficiency, PEM water electrolysis hydrogen production technology is often used in many places. During the assembly process of the PEM water electrolysis hydrogen production device, its sealing has always been a difficult problem that has plagued the industry. The quality of the sealing of the water electrolysis hydrogen production device directly affects the safety and service life of hydrogen production.

[0003] Traditional sealing of PEM electrolytic hydrogen production systems involves creating sealing grooves on both sides of the bipolar plate. This involves creating multiple symmetrical sealing grooves on the PEM bipolar plate. The grooves are then filled with glue and then the sealing strips are inserted to secure the seals within the grooves. Conventional dispensing processes involve injecting glue directly along the groove path using a dispenser. One specific method involves continuously injecting the glue into the groove, while another involves intermittently injecting the glue along the groove path. Due to the large surface area of ​​the PEM electrolytic hydrogen production bipolar plate, both methods suffer from low efficiency. Furthermore, since most glues have a short curing time, the glue applied at the front end may have already set or solidified by the time the back end is finished. Furthermore, the continuous dispensing process is more likely to result in excessive glue in the sealing groove, leading to overflow. While intermittent dispensing can control the amount of glue dispensed, it is even less efficient because the dispensing needle must be intermittently moved to achieve dispensing. Utility Model Content

[0004] In order to overcome the above problems existing in the prior art, the utility model provides a PEM water electrolysis bipolar plate dispensing device.

[0005] The utility model discloses a PEM electrolysis water bipolar plate sealing and dispensing device, comprising a frame body, an upper glue injection area and a lower glue dispensing platform provided on the frame body, the lower glue dispensing platform being used to place the bipolar plates, the upper glue injection area being provided with a glue dispensing mold located directly above the lower glue dispensing platform, the glue dispensing mold being arranged on the frame body for lifting and sliding movement, a glue injection mechanism being provided directly above the glue dispensing mold, a glue discharge area being provided on the glue dispensing mold corresponding to a position trajectory of a bipolar plate sealing groove, the glue discharge area being composed of a plurality of micropores arranged in an array.

[0006] On this basis, the glue injection mechanism includes a glue storage tank, a strip glue outlet, a liquid inlet pipe and an open closed tank. The glue storage tank is lifted and lowered on the frame body. The bottom array of the glue storage tank is provided with a strip glue outlet. The strip glue outlets are all communicated with the interior of the glue storage tank. The strip glue outlets correspond to the positions of the micropores. The top of the glue storage tank is provided with a liquid inlet pipe connected to the glue source. An open closed tank is provided on the frame body directly below the glue storage tank.

[0007] On this basis, the glue storage tank is fixed with a cross-shaped circulation pipe, the intersection of the cross-shaped circulation pipes is the center position of the glue storage tank, and the intersection of the cross-shaped circulation pipes is connected with a liquid inlet pipe that passes through the glue storage tank and communicates with the outside. The ports of the cross-shaped circulation pipes are all connected with the strip-shaped glue outlet, and the glue outlet area of ​​the long side of the cross-shaped circulation pipe is larger than the glue outlet area of ​​the short side. The outer surface of the cross-shaped circulation pipe is covered with a sealing gasket layer and is in contact with the inner wall of the glue storage tank, so that the cross-shaped circulation pipe forms multiple sealed cavities inside the glue storage tank, and pressure sensors are provided in the sealed cavities. Measuring devices are also provided in the four branches of the cross-shaped circulation pipe.

[0008] On this basis, a rotating connecting disk is rotatably provided on the frame body, and a glue injection syringe connected to the glue source and a glue spraying syringe connected to the power element are fixed on the rotating connecting disk. The glue injection syringe and the glue spraying syringe change their positions under the rotation of the rotating connecting disk and are connected to the liquid inlet pipe in turn.

[0009] On this basis, a limiting mechanism is provided on the lower dispensing table. The limiting mechanism adopts a limiting disc, and the limiting disc is arranged around the bipolar plate.

[0010] On this basis, a collection bucket is detachably provided at the bottom of the open closed tank.

[0011] On this basis, the thickness of the dispensing mold is 3-5 mm, the spacing between the micropores is 1-3 mm, and the inner circumferential walls of the micropores are coated with a hydrophobic layer.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The present invention is provided with a dispensing mold and a glue injection mechanism. After the glue liquid is injected into the micropores of the dispensing mold by the glue injection mechanism at one time, the glue liquid is transferred to the sealing groove of the bipolar plate through the micropores at one time, which has a high dispensing efficiency and a short contact time between the glue liquid and the air, effectively solving the problems of glue solidification and initial coagulation. In addition, compared with the existing continuous dispensing process, the microporous glue discharge area arranged in the array of the present device is an intermittent dispensing process, which can effectively control the glue discharge amount and avoid glue overflow. Compared with the existing intermittent dispensing method that directly uses a dispensing machine, the present invention is a one-time transfer dispensing method through the dispensing mold, so it has a higher dispensing efficiency.

[0014] (2) The present invention is designed with a glue storage tank in the glue dispensing mechanism, that is, the glue liquid can be pre-injected into the glue storage tank through the glue injection syringe, and the glue liquid can fill each strip glue outlet, and at the same time, the air and impurities at the glue storage tank and the strip glue outlet can be pre-eliminated. In this process, the open closed groove plays the role of sealing and collecting the strip glue outlet to avoid waste; therefore, each strip glue outlet has an equal amount of glue liquid at equal pressure, and finally under the direct pressure of the glue syringe, it can be ensured that the glue liquid in each strip glue outlet is injected into each micropore at the same time. The glue output is almost equal and sufficiently uniform, and after the glue dispensing mold is close to the bipolar plate, the glue liquid in the micropore falls into the sealing groove of the bipolar plate, that is, a one-time transfer of the glue liquid is achieved; in addition, the glue liquid is sealed and stored in the glue storage tank, and the glue dispensing process of multiple bipolar plates can be realized directly through the glue syringe multiple times, which further improves work efficiency;

[0015] (3) The present invention pre-adopts a glue storage tank with a strip glue outlet to realize the function of pre-discharging glue to eliminate internal air and impurities and constant pressure glue storage. Then, the strip glue outlet is connected with the micropores to realize the uniform injection of a constant amount of glue into the micropores, so as to realize the function of uniform glue dispensing to the bipolar plate sealing groove. In addition, the superimposed glue dispensing design of the strip glue outlet and the micropores has a simpler processing technology and higher controllability than the existing design of directly adding a glue dispensing head.

[0016] (4) The present invention has a high requirement for the glue injection amount in the glue dispensing process of the bipolar plate, and has the requirements of small, uniform, and almost equal glue injection amount, and the glue liquid has a certain viscosity. Therefore, the present invention simultaneously provides a glue injection syringe and a glue spraying syringe, and they are quickly connected to the liquid inlet pipe after rotating the connecting disk to move the orientation. That is, different syringes can be used to respectively realize the two processes of glue injection and glue dispensing without interfering with each other, effectively avoiding the problem that when the same syringe is used for glue injection, a large amount of glue residue is left on the inner wall of the syringe, thereby affecting the glue amount in the glue storage tank and the glue spraying pressure during the subsequent glue spraying process;

[0017] (5) The present invention sets a limiting mechanism for the bipolar plate. The limiting mechanism adopts a disc-shaped design and adopts an electric drive mechanism of a motor and a twin-rotating screw. Firstly, it can realize point-line contact limiting of the four sides of the bipolar plate. Under the premise of not affecting the limiting effect on the bipolar plate, it can minimize the contact area of ​​the bipolar plate and reduce the wear on the side of the bipolar plate. Secondly, because the two pairs of limiting discs can achieve synchronous approach and distance to the bipolar plate through the electric drive mechanism of the motor and the twin-rotating screw, the two pairs of limiting discs can automatically align the bipolar plate, so that the bipolar plate is placed in the middle position of the lower dispensing table, so that it is automatically fixed in correspondence with the position of the dispensing mold, which is convenient for the subsequent dispensing process.

[0018] (6) In the present invention, the bottom of the open closed tank is detachably provided with a collection bucket, which is convenient for collecting and reusing the glue liquid;

[0019] (7) Compared with the existing dispensing device, this device uses a nanometer-scale needle tube as a strip-shaped glue outlet. When the strip-shaped glue outlet is full of glue, the glue will not drip from the strip-shaped glue outlet under the action of the capillary principle of the glue needle tube, thereby further ensuring that under the pressure of the glue syringe, the glue in the strip-shaped glue outlet enters the dispensing mold at the same time and in equal amounts.

[0020] (8) The utility model adopts a thin plate as a dispensing mold, and the inner wall of the micropores therein is coated with a hydrophobic layer. The design of the thin plate can effectively control the amount of dispensing and avoid glue overflow. The hydrophobic layer can effectively prevent the glue from adhering to the inner wall of the micropores, and can quickly penetrate the micropores and transfer to the bipolar plate, with a high transfer rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the dispensing device of the utility model;

[0022] Figure 2 This is a structural diagram of the utility model dispensing device from another angle;

[0023] Figure 3 This is a structural diagram of the glue injection mechanism of the utility model;

[0024] In the figure: 1. Frame; 2. Lower dispensing table; 3. Dispensing mold; 3-1. Micropore; 4. Glue injection mechanism; 4-1. Glue storage tank; 4-1-1. Cross-shaped circulation channel; 4-1-2. Sealing chamber; 4-2. Strip-shaped glue outlet; 4-3. Liquid inlet pipe; 4-4. Open-type closed tank; 4-4-1. Collecting barrel; 5. Rotating connecting plate; 5-1. Glue injection syringe; 5-2. Glue syringe; 6. Limiting disc; 7. Bipolar plate. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The utility model discloses a PEM electrolysis water bipolar plate sealing glue dispensing device, referring to Figure 1 and Figure 2 , including a frame body 1, a lower dispensing platform 2 and an upper glue injection area are provided on the frame body 1, the lower dispensing platform 2 is fixedly set on the frame body 1, and its upper surface is used for placing the bipolar plate 7, and a limiting mechanism for the bipolar plate 7 is provided at the same time. In this embodiment, the limiting mechanism is two pairs of limiting discs 6 that respectively limit the four sides of the bipolar plate 7. The orientation of the four limiting discs 6 is arranged in a 90° array along the center position of the lower dispensing platform 2, and a pair of limiting discs 6 that are 180° symmetrical to each other are provided. They limit the long side or short side of the bipolar plate 7. Two sets of electric drive mechanisms are provided inside the lower dispensing platform 2. The structure (not shown in the figure) adopts the mechanism of the motor and the twin-rotation screw commonly used in the existing field. A pair of limit discs 6 are respectively threadedly connected to the left-hand section and the right-hand section of the twin-rotation screw, and under the drive of the motor, they make synchronous sliding movements toward or away from each other on the lower dispensing table 2, and can simultaneously approach or move away from the two long sides or the two short sides of the bipolar plate 7. The process of constantly approaching the bipolar plate 7 is the limiting effect on the bipolar plate 7. The setting of the limit disc 6 and the electric drive mechanism in this device can automatically make the bipolar plate 7 be located at the center position of the lower dispensing table 2 during the limiting process of the bipolar plate 7.

[0027] refer to Figure 1 and Figure 2 The upper glue injection area includes a glue dispensing mold 3 located directly above the lower glue dispensing platform 2. The glue dispensing mold 3 is in the shape of a thin plate with a thickness of 3-5 mm, and is electrically driven by a cylinder, a hydraulic cylinder, or a motor screw to achieve lifting and sliding motion on the frame 1. The glue dispensing mold 3 is provided with a glue discharge area corresponding to the position trajectory of the sealing groove of the bipolar plate 7. The glue discharge area is composed of a plurality of micropores 3-1 arranged in an array, and the inner circumferential walls of the micropores 3-1 are coated with a hydrophobic layer, which is formed by brushing with a hydrophobic coating conventionally used in the prior art.

[0028] A glue injection mechanism 4 is also provided on the frame body 1 directly above the glue dispensing mold 3. The glue injection mechanism 4 includes a glue storage tank 4-1 that is lifted and lowered on the frame body 1, and the glue storage tank 4-1 can also slide on the frame body 1 in a horizontal direction perpendicular to its lifting direction. The glue storage tank 4-1 is electrically driven by a cylinder, a hydraulic cylinder, or a motor screw to achieve lifting and horizontal sliding motion on the frame body 1 (not fully shown in the figure); Figure 3, the bottom array of the glue storage tank 4-1 is provided with a strip-shaped glue outlet 4-2 corresponding to the position of the micropores 3-1 in the glue discharge area. When the glue storage tank 4-1 is close to the dispensing mold 3, each strip-shaped glue outlet 4-2 can contain 8 micropores 3-1, which is the shape of the corresponding bipolar plate 7. The strip-shaped glue outlet 4-2 in the glue storage tank 4-1 also forms the same shape as the sealing groove trajectory of the bipolar plate 7; and a cross-shaped flow channel 4-1-1 is fixedly provided in the glue storage tank 4-1, and the intersection of the cross-shaped flow channel 4-1-1 is It is located at the center of the glue storage tank 4-1, and the intersection of the cross-shaped circulation pipe 4-1-1 is connected to a liquid inlet pipe 4-3 that passes through the glue storage tank 4-1 and communicates with the outside. The end of the cross-shaped circulation pipe 4-1-1 away from the liquid inlet pipe 4-3 is connected to the strip glue outlet 4-2. The glue outlet area of ​​the long side of the cross-shaped circulation pipe 4-1-1 is larger than the glue outlet area of ​​the short side, that is, the liquid flow is calculated based on the long and short sides of the glue storage tank 4-1, so that the glue liquid can enter the strip glue outlet 4-2 at different directions at a relatively uniform speed.

[0029] The outer surface of the cross-shaped circulation channel 4-1-1 is covered with a sealing gasket layer and contacts the inner wall of the glue storage tank 4-1, so that the cross-shaped circulation channel 4-1-1 forms multiple sealed cavities 4-1-2 inside the glue storage tank 4-1. At the same time, each sealed cavity 4-1-2 is provided with a pressure sensor, and the four branches of the cross-shaped circulation channel 4-1-1 are also provided with flow meters and other measuring devices; the glue storage volume in the glue storage tank 4-1 is guaranteed by the measuring devices, and the multiple sealed cavities 4-1-2 are connected to the strip glue outlet 4-2, so that the glue pressure in each sealed cavity 4-1-2 and the strip glue outlet 4-2 is relatively uniform, so as to control the glue output.

[0030] ,refer to Figure 1 In the present device, a rotating connecting disk 5 controlled by a servo motor is also rotatably provided on the frame body 1. A glue injection syringe 5-1 connected to the glue source and a glue spraying syringe 5-2 connected to the power element are fixed on the rotating connecting disk 5. The power element here refers to power components such as pumps commonly used in the existing field. The glue injection syringe 5-1 and the glue spraying syringe 5-2 are symmetrically arranged along the center of the rotating connecting disk 5, so that under the rotation of the rotating connecting disk 5, they can be connected to the liquid inlet pipe 4-3 in turn after changing their orientation.

[0031] On the frame body 1, there is a swinging open closed groove 4-4 located just below the glue storage tank 4-1, which acts on each strip glue outlet 4-2 at the same time. The open closed groove 4-4 is a groove body with an open upper end, which is controlled by a driving motor to swing on the frame body 1. When the open closed groove 4-4 swings to a horizontal position, the glue storage tank 4-1 can move close to the open closed groove 4-4 and make the open closed groove 4-4 close the strip glue outlet 4-2 at the bottom of the glue storage tank 4-1. In order to collect the glue pumped out of the glue storage tank 4-1, the bottom of the open closed tank 4-4 is detachably provided with a collection bucket 4-4-1, and the detachable connection method is realized by commonly used technical means in the existing technical field, such as snap-on type, magnetic type, etc. When the open closed tank 4-4 swings away from the strip glue outlet 4-2, that is, when it tends to be perpendicular to the glue storage tank 4-1, the glue accumulated in the open closed tank 4-4 flows and is collected in the collection bucket 4-4-1, which is convenient for later collection.

[0032] This device is also equipped with a p1c system. All the above components are connected to the p1c system through circuits, and the opening and closing of each component and the action sequence are controlled by programming.

[0033] The working principle of the present invention is as follows: in actual use, the bipolar plate 7 is placed on the lower dispensing table 2, and the PLC system controls the four limiting discs 6 to approach the four sides of the bipolar plate 7 at the same time and fix the bipolar plate 7 in the center position on the lower dispensing table 2. At the same time, one end of the injection syringe 5-1 is connected to the glue source through a pipeline, and the other end is connected to the liquid inlet pipe 4-3 of the glue storage tank 4-1. The injection syringe 5-1 drives the glue source into the glue storage tank 4-1 through a power component such as a pump, and the glue liquid is poured into the glue storage tank 4-1. The glue flows through the cross-shaped flow channel 4-1-1 and gradually enters the corresponding strip-shaped glue outlet 4-2, filling all the strip-shaped glue outlets 4-2 and making glue flow out of all the strip-shaped glue outlets 4-2, so as to remove the air and impurities in all the pipes and ensure the glue amount in the strip-shaped glue outlet 4-2 is constant. During this process, the discharged glue accumulates in the open closed groove 4-4, where the glue injection amount is controlled by components such as pressure sensors; then the glue injection syringe 5-1 is withdrawn from the liquid inlet pipe under the action of the rotating connecting disk 5 At 4-3, the glue syringe 5-2 is close to the liquid inlet pipe 4-3 and connected to it. At the same time, the open closed tank 4-4 rotates away from the liquid storage tank, and the glue dispensing mold 3 rises and approaches the strip glue outlet 4-2. Here, the distance between the glue dispensing mold 3 and the strip glue outlet 4-2 can be controlled by adding components such as sensors, so that the strip glue outlet 4-2 is located 1mm above each micropore 3-1. At this time, the glue syringe 5-2 is injected with a constant pressure through the power component, and each strip glue is discharged. A constant amount of glue is injected into the micropore 3-1 of the dispensing mold 3 at the port 4-2, and gradually condenses at the bottom of the micropore 3-1 along the inner wall of the micropore 3-1. When the dispensing mold 3 descends and approaches the bipolar plate 7, the glue in the micropore 3-1 contacts the sealing groove of the bipolar plate 7 and falls into the sealing groove, completing a dispensing process. Thereafter, the above process is repeated, and the dispensing process for multiple bipolar plates 7 can be quickly realized. When the glue pressure in the glue storage tank 4-1 decreases, the glue can be replenished by connecting to the glue injection syringe 5-1 again.

[0034] The utility model can realize one-time dispensing of glue on the sealing groove of the bipolar plate with a larger area, greatly improves the dispensing efficiency, solves the problems of glue solidification and initial setting, and can effectively control the discharge amount to avoid glue overflow.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw", "place" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] The foregoing description shows and describes preferred embodiments of the present invention. As previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge of the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A PEM water electrolysis bipolar plate sealing glue dispensing device, comprising a frame (1), characterized in that: The frame (1) is provided with an upper glue injection area and a lower glue dispensing platform (2), the lower glue dispensing platform (2) is used to place the bipolar plate (7), the upper glue injection area is provided with a glue dispensing mold (3) located directly above the lower glue dispensing platform (2), the glue dispensing mold (3) is arranged on the frame (1) in a lifting and sliding manner, a glue injection mechanism (4) is provided directly above the glue dispensing mold (3), and a glue dispensing area is provided on the glue dispensing mold (3) corresponding to the position trajectory of the sealing groove of the bipolar plate (7), and the glue dispensing area is composed of a plurality of micropores (3-1) arranged in an array.

2. The PEM water electrolysis bipolar plate sealing glue dispensing device according to claim 1, characterized in that: The glue injection mechanism (4) comprises a glue storage tank (4-1), a strip glue outlet (4-2), a liquid inlet pipe (4-3) and an open closed tank (4-4); the glue storage tank (4-1) is arranged on the frame body (1) in a lifting manner; the bottom of the glue storage tank (4-1) is provided with a strip glue outlet (4-2) in an array; the strip glue outlets (4-2) are all communicated with the interior of the glue storage tank (4-1); the strip glue outlets (4-2) correspond to the positions of the micropores (3-1); the top of the glue storage tank (4-1) is provided with a liquid inlet pipe (4-3) communicated with a glue source; and the frame body (1) is provided with an open closed tank (4-4) directly below the glue storage tank (4-1).

3. The PEM water electrolysis bipolar plate sealing glue dispensing device according to claim 2, characterized in that: The glue storage tank (4-1) is fixedly provided with a cross-shaped circulation pipe (4-1-1), the intersection of the cross-shaped circulation pipes (4-1-1) is at the center of the glue storage tank (4-1), and the intersection of the cross-shaped circulation pipes (4-1-1) is connected to a liquid inlet pipe (4-3) that passes through the glue storage tank (4-1) and communicates with the outside, and the ends of the cross-shaped circulation pipes (4-1-1) are all connected to the strip-shaped glue outlet (4-2). 1-1), the glue outlet area of ​​the long side is larger than the glue outlet area of ​​the short side, the outer surface of the cross-shaped circulation channel (4-1-1) is covered with a sealing gasket layer and contacts the inner wall of the glue storage tank (4-1), so that the cross-shaped circulation channel (4-1-1) forms a plurality of sealed cavities (4-1-2) inside the glue storage tank (4-1), and pressure sensors are provided in the sealed cavities (4-1-2), and measuring devices are also provided in the four branches of the cross-shaped circulation channel (4-1-1).

4. The PEM water electrolysis bipolar plate sealing glue dispensing device according to claim 1, characterized in that: A rotating connecting disk (5) is rotatably provided on the frame body (1), and a glue injection syringe (5-1) connected to a glue source and a glue application syringe (5-2) connected to a power element are fixedly provided on the rotating connecting disk (5). Under the rotation action of the rotating connecting disk (5), the glue injection syringe (5-1) and the glue application syringe (5-2) change their orientations and are respectively connected to the liquid inlet pipe (4-3) in sequence.

5. The PEM water electrolysis bipolar plate sealing glue dispensing device according to claim 1, characterized in that: A limiting mechanism is provided on the lower dispensing platform (2), wherein the limiting mechanism adopts a limiting disc (6), and the limiting disc (6) is arranged around the bipolar plate (7).

6. The PEM water electrolysis bipolar plate sealing glue dispensing device according to claim 1, characterized in that: The bottom of the open closed tank (4-4) is detachably provided with a collection bucket (4-4-1).

7. The PEM water electrolysis bipolar plate sealing glue dispensing device according to claim 1, characterized in that: The thickness of the dispensing mold (3) is 3-5 mm, the spacing between the micropores (3-1) is 1-3 mm, and the inner circumferential walls of the micropores (3-1) are coated with a hydrophobic layer.

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