CN214797477U

CN214797477U - Ultrasonic fuel cell capable of preventing passivation, blocking and improving efficiency

Info

Publication number: CN214797477U
Application number: CN202120346233.2U
Authority: CN
Inventors: 彭志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-11-19
Anticipated expiration: 2031-02-05

Abstract

The utility model relates to an ultrasonic fuel cell of efficiency is carried to anti-clogging of preventing blunting, including front end plate, back end plate, set up a plurality of plate electrodes between front end plate and back end plate, press from both sides the reaction membrane between plate electrode and plate electrode, with front end plate, a plurality of plate electrodes, back end plate locking the screw-nut subassembly that makes up the galvanic pile; it is characterized by also comprising a film frame and an ultrasonic element; the reaction film is clamped in the film frame, and the ultrasonic element is arranged in the film frame; the periphery of the side surface of the electrode plate is also provided with a concave ring groove for the film frame to be embedded, and the reaction film is clamped between the electrode plate and the electrode plate through the embedding of the film frame and the concave ring groove. This ultrasonic fuel cell is through installing a membrane frame for every reaction membrane to install ultrasonic wave component among the membrane frame, make ultrasonic wave component during operation, can directly play a role to the reaction membrane, reduced ultrasonic energy's loss effectively, make the reaction membrane receive that the effect of ultrasonic energy is more direct, the effect is better.

Description

Ultrasonic fuel cell capable of preventing passivation, blocking and improving efficiency

Technical Field

The utility model relates to a fuel cell technical field, especially an ultrasonic fuel cell.

Background

A fuel cell is a chemical device that directly converts chemical energy of fuel into electric energy, and is also called an electrochemical generator. The method is a fourth novel power generation technology following hydroelectric power generation, thermal power generation and atomic power generation. The fuel cell is high in efficiency because the gibbs free energy in the chemical energy of the fuel is partially converted into electric energy through electrochemical reaction without the limitation of the carnot cycle effect. In addition, the fuel cell uses fuel and oxygen as raw materials, and has no mechanical transmission part, so that the fuel cell has no noise pollution, and discharges extremely little harmful gas which is almost ignored. From the viewpoint of energy saving and ecological environment protection, fuel cells are the most promising power generation technology.

Fuel cells have been successfully used in aerospace, marine, automotive, household power supplies, and charging equipment. However, in the process of operating the fuel cell, the fluid channels on the bipolar plates in the cell, and the carbon paper/carbon cloth, the catalyst sheet layer, the proton exchange membrane, etc. attached to the fluid channels are easy to block and gradually passivate the fluid channels, the carbon paper/carbon cloth, the catalyst sheet layer, the proton exchange membrane, etc. due to the generation and precipitation of impurities during the fuel reaction process, so that the electrical energy conversion efficiency is reduced, even the electrical energy conversion efficiency is failed. Therefore, the method solves the problem of impurity precipitation in the fuel reaction process and is a necessary means for prolonging the service life of the fuel cell.

Therefore, the applicant proposes and applies a technical scheme with patent application number 201811528683.2 and name "an ultrasonic fuel cell" to the national intellectual property office in 2018, 12 and 13, and the technical scheme comprises a front end plate, a rear end plate, a stack formed by stacking and combining a plurality of single cells in series and a screw, wherein the stack is arranged between the front end plate and the rear end plate and is fastened and fastened by the screw, and the single cells are sequentially formed by stacking a bipolar plate, carbon paper/carbon cloth, a catalyst sheet layer, a proton exchange membrane, a catalyst sheet layer, carbon paper/carbon cloth and the bipolar plate. And a plurality of ultrasonic transducers are also arranged on the back surface of the bipolar plate on the outer side of the single battery, and each ultrasonic transducer is connected with an electric wire. The high-frequency ultrasonic vibration generated by the ultrasonic transducer during working is utilized to avoid the blockage of impurities generated in the fuel reaction process on a fluid channel, carbon paper/carbon cloth, a catalyst sheet layer, a proton exchange membrane and the like due to the precipitation of the impurities, so that the passivation of the fuel cell is greatly delayed, the electric energy conversion efficiency of the fuel cell is improved, and the service life and the reliability of the fuel cell are greatly prolonged. However, since the ultrasonic transducer is disposed in the plate, the ultrasonic energy is indirectly applied to the proton exchange membrane, the carbon paper/carbon cloth, and the catalyst sheet, and some of the energy is lost. Therefore, the applicant believes that the ultrasonic wave has a certain lifting space when being used in the fuel cell, and further can better exert the performance of the fuel cell.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the above problems and deficiencies, and to provide an anti-passivation anti-clogging ultrasonic fuel cell with improved efficiency, which can directly act on the reaction membrane by installing a membrane frame on each reaction membrane and installing an ultrasonic element in the membrane frame, thereby effectively reducing the loss of ultrasonic energy, and making the reaction membrane more directly and better acted by the ultrasonic energy; and through the design of membrane frame, make the reaction membrane have great volume of grabbing, make ultrasonic fuel cell be convenient for realize intelligent equipment of robot and production, be favorable to improving fuel cell production efficiency, reduce fuel cell's manufacturing cost, make fuel cell can obtain popularizing and applying fast.

The technical scheme of the utility model is realized like this: an ultrasonic fuel cell capable of preventing passivation and blockage and improving efficiency comprises a front end plate, a rear end plate, a plurality of electrode plates arranged between the front end plate and the rear end plate, a reaction membrane clamped between the electrode plates, and a screw nut assembly for locking the front end plate, the plurality of electrode plates and the rear end plate to form a galvanic pile; it is characterized by also comprising a film frame and an ultrasonic element; the reaction film is clamped in the film frame, and the ultrasonic element is arranged in the film frame; and concave ring grooves for hiding and embedding the film frame are also formed in the periphery of the side face of the electrode plate, and the reaction film is clamped between the electrode plate and the electrode plate through the embedding of the film frame and the grooves.

Preferably, a sealing gasket is arranged between the concave ring groove and the film frame.

Preferably, the membrane frame is further provided with a containing inner cavity at the periphery, and the ultrasonic element is installed in the containing inner cavity.

Preferably, the middle part of the electrode plate is also provided with an inner chamber, and the inner chamber is also provided with an ultrasonic element.

The utility model has the advantages that: (1) the utility model installs a membrane frame on each reaction membrane and installs the ultrasonic element in the membrane frame, so that the ultrasonic element can directly act on the reaction membrane when working, thereby effectively reducing the loss of ultrasonic energy and leading the reaction membrane to be more directly acted by the ultrasonic energy and have better effect; and through the design of membrane frame, make the reaction membrane have great volume of grabbing, make ultrasonic fuel cell be convenient for realize intelligent equipment of robot and production, be favorable to improving fuel cell production efficiency, reduce fuel cell's manufacturing cost, make fuel cell can obtain popularizing and applying fast. (2) Under extremely cold environment, can also carry out the ultrasonic wave intensification to fuel cell pile body, utilize the ultrasonic vibration of high frequency, can make the inside molecule of material produce violent oscillation, produce the ultrasonic cavitation effect, the mutual frictional motion of molecule realizes the purpose of intensification to prevent that the pile from freezing, inside passageway and freezing membrane sclerosis from causing the problem of jam, influence hydrogen and passing through and unable normal start. Meanwhile, the problem that the fuel cell cannot work normally or the energy conversion efficiency is low in the extremely cold environment is avoided. (3) The utility model discloses utilize ultrasonic transducer during operation to produce high frequency ultrasonic vibration, the impurity that avoids fuel reaction process to produce deposits at fluid passage, carbon paper carbon cloth, proton exchange membrane etc. and causes the jam to them, the impurity that makes fuel reaction in-process production can not deposit, block up wherein, but along with the material outflow fuel cell after the reaction, greatly delay fluid passage, carbon paper carbon cloth, the catalyst lamella, passivation such as proton exchange membrane, block up, make the conversion efficiency of hydrogen commentaries on classics electricity obtain promoting greatly, the loss still less, energy conversion efficiency is higher, fuel cell's life and reliability have been prolonged greatly.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural view of the present invention in a disassembled state.

Fig. 3 is a schematic structural diagram of the reaction membrane and the membrane frame of the present invention.

Fig. 4 is a schematic sectional view of the electrode plate of the present invention.

Detailed Description

As shown in FIGS. 1 to 4, an ultrasonic fuel cell for preventing passivation and increasing efficiency comprises a front end plate 1, a rear end plate 2, a plurality of electrode plates 3 arranged between the front end plate 1 and the rear end plate 2, a reaction membrane 4 clamped between the electrode plates 3 and the electrode plates 3, and a screw-nut assembly 5 for locking the front end plate 1, the plurality of electrode plates 3 and the rear end plate 2 to form a stack. In order to realize the purpose provided by the utility model, the utility model also comprises a membrane frame 6 and an ultrasonic element 7; the reaction film 4 is clamped in a film frame 6, and the ultrasonic element 7 is arranged in the film frame 6; concave ring grooves 31 for the film frame 6 to be hidden and embedded are further formed in the periphery of the side face of the electrode plate 3, and the reaction film 4 is clamped between the electrode plate 3 and the electrode plate 3 through the embedding of the film frame 6 and the grooves 31. The utility model installs a membrane frame on each reaction membrane and installs the ultrasonic element in the membrane frame, so that the ultrasonic element can directly act on the reaction membrane when working, thereby effectively reducing the loss of ultrasonic energy and leading the reaction membrane to be more directly acted by the ultrasonic energy and have better effect; and through the design of membrane frame, make original diaphragm membraniform reaction membrane 4, be difficult to snatch by robotic arm and can't realize automatic production's problem, through the application of membrane frame, make the reaction membrane have great the volume of grabbing, make ultrasonic fuel cell be convenient for realize intelligent equipment of robot and production, be favorable to improving fuel cell production efficiency, reduce fuel cell's manufacturing cost, make fuel cell can get quick popularization and application.

In order to ensure the assembly tightness between the membrane frame 6 and the electrode plate 3, as shown in fig. 4, a sealing gasket 8 is further disposed between the concave ring groove 31 and the membrane frame 6. The matched locking of the sealing washer 8 and the screw nut assembly 5 enables the membrane frame 6 and the electrode plate 3 to be simply and effectively sealed and assembled together.

In order to allow the ultrasonic element 7 to be easily installed in the membrane frame 6, as shown in fig. 3, a receiving cavity 61 is further provided around the membrane frame 6, and the ultrasonic element 7 is installed in the receiving cavity 61. As shown in fig. 2, the film frame 6 generally includes a frame cover 601 and a bottom frame 602, a receiving cavity 61 is formed between the frame cover 601 and the bottom frame 602, and the reaction film 4 is sandwiched between the frame cover 601 and the bottom frame 602, and the frame cover 601 and the bottom frame 602 are sealed together by an ultrasonic sealing machine.

In order to further enhance the overall "cavitation" effect of the ultrasonic energy on the fluid channel and the reaction membrane, so that the impurities generated in the fuel reaction process cannot be precipitated and blocked in the fluid channel/on the reaction membrane, as shown in fig. 4, an inner chamber 30 is further disposed in the middle of the electrode plate 3, and an ultrasonic element 7 is further disposed in the inner chamber 30.

As shown in fig. 2, the reaction membrane 4 is composed of a proton exchange membrane 41 and carbon cloths 42 covering both side surfaces of the proton exchange membrane 41.

In order to make the utility model have better ultrasonic energy effect, the ultrasonic element is an ultrasonic transducer of 1MHz or above, or an ultrasonic vibration motor of 1 ten thousand rotational speeds or above.

The above description of the structural solution is an embodiment of the preferred embodiment of the present invention, but it does not represent a limitation to the protection scope of the technical solution of the present invention. It should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and all of the modifications and improvements belong to the protection scope of the present invention.

Claims

1. An ultrasonic fuel cell capable of preventing passivation and blocking and improving efficiency comprises a front end plate (1), a rear end plate (2), a plurality of electrode plates (3) arranged between the front end plate (1) and the rear end plate (2), a reaction film (4) clamped between the electrode plates (3) and the electrode plates (3), and a screw and nut assembly (5) for locking the front end plate (1), the plurality of electrode plates (3) and the rear end plate (2) to form a galvanic pile; the method is characterized in that: the ultrasonic film packaging device also comprises a film frame (6) and an ultrasonic element (7); the reaction film (4) is clamped in a film frame (6), and the ultrasonic element (7) is arranged in the film frame (6); the side of electrode board (3) still is equipped with all around and supplies membrane frame (6) to hide concave ring groove (31) of inlaying, reaction membrane (4) are inlayed the dress and are pressed from both sides between electrode board (3) and electrode board (3) through inlaying mutually of membrane frame (6) and concave ring groove (31).

2. The ultrasonic fuel cell of claim 1, wherein the ultrasonic fuel cell is capable of preventing passivation and clogging to improve efficiency, and further comprises: and a sealing gasket (8) is arranged between the concave ring groove (31) and the film frame (6).

3. The ultrasonic fuel cell of claim 1, wherein the ultrasonic fuel cell is capable of preventing passivation and clogging to improve efficiency, and further comprises: and an accommodating inner cavity (61) is further formed in the periphery of the membrane frame (6), and the ultrasonic elements (7) are arranged in the accommodating inner cavity (61).

4. The ultrasonic fuel cell of claim 1, wherein the ultrasonic fuel cell is capable of preventing passivation and clogging to improve efficiency, and further comprises: the electrode plate (3) middle part still is equipped with interior chamber (30), still be equipped with ultrasonic wave component (7) in interior chamber (30).

5. The ultrasonic fuel cell of claim 1, wherein the ultrasonic fuel cell is capable of preventing passivation and clogging to improve efficiency, and further comprises: the reaction membrane (4) is composed of a proton exchange membrane (41) and carbon cloth (42) covering the two side surfaces of the proton exchange membrane (41).

6. The ultrasonic fuel cell of claim 1 or 2 or 3 or 4 or 5 for preventing passivation and increasing efficiency by preventing clogging, wherein: the ultrasonic element is an ultrasonic transducer of 1MHz or more or an ultrasonic vibration motor of 1 ten thousand rotation speeds or more.