阅读说明：本技术 一种用于氢氧燃料电池的氢泄漏监测装置 (Hydrogen leakage monitoring device for hydrogen-oxygen fuel cell ) 是由 陈本海 秦东晨 于 2021-09-04 设计创作，主要内容包括：本发明公开了一种用于氢氧燃料电池的氢泄漏监测装置,包括外壳,外壳包括握把与筒壳,筒壳的内侧面插接有直管,直管的内侧面螺纹安装有单向阀,单向阀的外表面远离直管的一端螺纹安装有抵靠头,弯管远离直管的出口端设置有反应缸,直管的内侧面靠近弯管的一侧滑动安装有隔膜头。本发明方便更换抵靠头,能够适应漏眼分布在电池上不同位置处的情况,且抵靠头与被检测电池接触时,能够避免外部空气中的氢气也进入到直管影响检测人员对漏眼位置的判断,反应过后生成的水珠难以残留在装置内部导致其他部件的氧化速度加快,还能避免连续检测时装置内部的氢气未排出而影响到每一个燃料电池的检测结果。(The invention discloses a hydrogen leakage monitoring device for a hydrogen-oxygen fuel cell, which comprises a shell, wherein the shell comprises a handle and a cylinder shell, the inner side surface of the cylinder shell is spliced with a straight pipe, the inner side surface of the straight pipe is provided with a check valve in a threaded manner, one end of the outer surface of the check valve, which is far away from the straight pipe, is provided with a butting head in a threaded manner, the outlet end of a bent pipe, which is far away from the straight pipe, is provided with a reaction cylinder, and one side, which is close to the bent pipe, of the inner side surface of the straight pipe is provided with a diaphragm head in a sliding manner. The invention is convenient to replace the abutting head, can adapt to the condition that the leaking holes are distributed at different positions on the battery, can prevent hydrogen in the external air from entering the straight pipe to influence the judgment of a detection person on the leaking hole position when the abutting head is contacted with the detected battery, can prevent water beads generated after reaction from being difficult to remain in the device to accelerate the oxidation speed of other parts, and can also prevent hydrogen in the device from not being discharged to influence the detection result of each fuel battery during continuous detection.)

1. The utility model provides a hydrogen leakage monitoring device for oxyhydrogen fuel cell, includes shell (1), its characterized in that, shell (1) is including handle (2) and shell (3), the medial surface of shell (3) is pegged graft and is had straight tube (4), check valve (5) are installed to the medial surface screw thread of straight tube (4), the surface of check valve (5) is kept away from the one end screw thread of straight tube (4) and is installed to support and lean on head (6), the one end of keeping away from to lean on head (6) of straight tube (4) is passed through check valve (5) screw thread and is installed return bend (7), the exit end that straight tube (4) were kept away from in return bend (7) is provided with reaction cylinder (8), reaction cylinder (8) include upper cavity (9), cavity (10) down, adsorption tablet (11) and proton exchange membrane (12), upper cavity (9) all are provided with pipe (13) with the bottom of cavity (10) down, and a diaphragm head (14) is slidably mounted on one side of the inner side surface of the straight pipe (4) close to the bent pipe (7).

2. The hydrogen leakage monitoring device for the hydrogen-oxygen fuel cell according to claim 1, wherein a top rod (15) is inserted into the inner side surface of the diaphragm head (14), a power assembly (16) is arranged at the bottom of the top rod (15), and the power assembly (16) comprises a mounting seat (17), a guide rail (18), an eccentric wheel (19) and a connecting rod (20).

3. The hydrogen leakage monitoring device for hydrogen-oxygen fuel cell according to claim 1, wherein the housing (1) is made of ABS plastic, the abutment head (6) is made of silicic acid gel, and the inner side surface of the handle (2) is provided with a battery cavity (21).

4. The hydrogen leakage monitoring device for the oxyhydrogen fuel cell according to claim 1, wherein an indicator light (22) is arranged at one end of the cartridge housing (3) far away from the abutting head (6), the adsorption sheets (11) are platinum-plated sponge nickel, the number of the adsorption sheets (11) and the abutting head (6) is two, and the proton exchange membrane (12) is positioned between the two groups of the adsorption sheets (11).

5. The hydrogen leakage monitoring device for hydrogen-oxygen fuel cell according to claim 1, wherein the number of the check valves (5) is three, the diameter section of the conduit (13) is curved, and the reaction cylinder (8) is installed obliquely and fixedly connected to the inner wall of the cartridge housing (3).

6. The hydrogen leakage monitoring device for the hydrogen-oxygen fuel cell according to claim 1, wherein the outer surface of the handle (2) is threaded with a self-reset button (23), the axial section of the two sets of abutting heads (6) is circular and M-shaped, the inner wall of the barrel shell (3) is provided with a binding post (24), and the outer surface of the handle (2) is sleeved with an L-shaped plate (25).

Technical Field

The invention relates to the technical field of battery detection, in particular to a hydrogen leakage monitoring device for a hydrogen-oxygen fuel cell.

Background

The fuel cell is a new power source with a great development prospect, and generally takes hydrogen, carbon, methanol, borohydride, coal gas or natural gas as fuel, as a negative electrode, and takes oxygen in the air as a positive electrode. The main difference from a general battery is that the active material of the general battery is previously placed inside the battery, and thus the battery capacity depends on the amount of the active material stored; the active materials (fuel and oxidant) of the fuel cell are continuously supplied while reacting, and therefore, such a cell is actually only an energy conversion device. The battery has the advantages of high conversion efficiency, large capacity, high specific energy, wide power range, no need of charging and the like, but the battery is only limited to special purposes such as spaceships, submarines, military affairs, television transfer stations, lighthouses, buoys and the like due to high cost and relatively complex system. The hydrogen-oxygen fuel cell uses hydrogen as a reducing agent and oxygen as an oxidant, and the hydrogen-oxygen fuel cell converts chemical energy into electric energy through the combustion reaction of the fuel, and has the same working principle as that of the primary cell. In operation, a hydrogen-oxygen fuel cell supplies hydrogen gas to a hydrogen electrode while supplying oxygen gas to an oxygen electrode. The hydrogen and oxygen pass through the electrolyte to generate water under the action of the catalyst on the electrodes. At this time, the hydrogen electrode has excess electrons and is negatively charged, and the oxygen electrode has a positive charge due to the lack of electrons. After the circuit is completed, the combustion-like reaction process can be continuously performed.

Present hydrogen leakage monitoring devices, it makes the hydrogen reaction to inhale near the battery with the straight tube mostly, thereby judge whether the battery reveals the hydrogen, but can not influence each fuel cell's testing result when leading to continuous detection with inside hydrogen discharge during the use, and the straight tube tip can not completely cut off the outside air, let the higher hydrogen of purity and air mix and produce the explosion easily, and inhale hydrogen in the air and can't draw the concrete position of leaking the eye, simultaneously more be difficult to detect when leaking the eye when the edge of battery, the drop of water that hydrogen produced after the detection device internal reaction also is difficult to the complete outflow, can accelerate the oxidation rate of other parts in the device, adaptability is not good enough.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a hydrogen leakage monitoring device for an oxyhydrogen fuel cell, which is convenient to replace an abutting head, can adapt to the situation that leaking holes are distributed at different positions on the cell, can prevent hydrogen in external air from entering a straight pipe to influence the judgment of a detection person on the leaking hole position when the abutting head is contacted with the detected cell, can prevent water beads generated after reaction from being difficult to remain in the device to cause the acceleration of the oxidation speed of other parts, and can also prevent hydrogen in the device from not being discharged to influence the detection result of each fuel cell during continuous detection.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a hydrogen leakage monitoring devices for oxyhydrogen fuel cell, includes the shell, the shell includes handle and bobbin case, the medial surface of bobbin case is pegged graft and is had the straight tube, the check valve is installed to the medial surface screw thread of straight tube, the one end screw thread that the straight tube was kept away from to the surface of check valve is installed and is leaned on the head, the straight tube is kept away from the one end that leans on the head and is installed the return bend through the check valve screw thread, the exit end that the straight tube was kept away from to the return bend is provided with the reaction jar, the reaction jar includes cavity, lower cavity, adsorption sheet and proton exchange membrane, the bottom of going up cavity and lower cavity all is provided with the pipe, one side slidable mounting that the medial surface of straight tube is close to the return bend has the diaphragm head.

Preferably, the inner side surface of the diaphragm head is inserted with a top rod, the bottom of the top rod is provided with a power assembly, and the power assembly comprises a mounting seat, a guide rail, an eccentric wheel and a connecting rod.

Preferably, the shell is made of ABS plastic, the abutting head is made of silicic acid gel, and a battery cavity is formed in the inner side face of the handle.

Preferably, an indicator light is arranged at one end, away from the abutting head, of the cylinder shell, the adsorption pieces are platinum-plated sponge nickel, the quantity of the adsorption pieces and the quantity of the abutting head are two groups, and the proton exchange membrane is located between the two groups of the adsorption pieces.

Preferably, the number of the check valves is three, the diameter section of the guide pipe is curved, and the reaction cylinder is obliquely installed and fixedly connected to the inner wall of the cylinder shell.

Preferably, the outer surface of the handle is provided with a self-resetting button in a threaded manner, the axial section of each of the two groups of abutting heads is circular and M-shaped, the inner wall of the barrel shell is provided with a binding post, and the outer surface of the handle is sleeved with an L-shaped plate.

Compared with the prior art, the invention has the beneficial effects that:

1. be provided with the check valve, when seeking the hourglass eye at hydrogen fuel cell cambered surface or plane, can twist the axle tangent plane for the circular shape to lean on the head on the check valve that the straight tube is connected, then twist the axle tangent plane and be the head that leans on of M shape when seeking the hourglass eye in the edge, convenient the change, the adaptability is wider.

2. Be provided with and support the head, support by silicic acid gel and make and support to first texture softer, make and support the head and when being detected the surface contact of battery, can completely cut off and support the space that covers with non-covered space, avoid the hydrogen in outside air and the air also to enter into the straight tube and influence the judgement that testing personnel put to leaking the eye.

3. The reaction cylinder is obliquely installed, so that water beads generated after reaction can flow out of the device along the inner wall of the inclined conduit, and the water beads are difficult to remain in the device to accelerate the oxidation speed of other components.

4. The diaphragm head is arranged, so that gas in the straight pipe can be conveniently pressed into the reaction cylinder and discharged from the guide pipe, and purer hydrogen leaked from the leaking hole is sucked into the straight pipe, so that the danger of easy explosion due to impurity after hydrogen mixing can be reduced, and the condition that the detection result of each fuel cell is influenced because hydrogen in the device is not discharged during continuous detection can be avoided.

Drawings

FIG. 1 is a perspective view showing the construction of a hydrogen leakage monitoring device for a hydrogen-oxygen fuel cell according to the present invention;

FIG. 2 is a cross-sectional view of a check valve of a hydrogen leakage monitoring device for a hydrogen-oxygen fuel cell in accordance with the present invention;

FIG. 3 is a cross-sectional view of a hydrogen leak monitoring device for a hydrogen-oxygen fuel cell in accordance with the present invention;

FIG. 4 is an enlarged view of FIG. 3A of a hydrogen leak monitoring device for a hydrogen-oxygen fuel cell in accordance with the present invention;

FIG. 5 is a schematic diagram of the power assembly of a hydrogen leakage monitoring device for hydrogen-oxygen fuel cells in accordance with the present invention;

fig. 6 is a hydrogen reaction flow chart of a hydrogen leakage monitoring device for a hydrogen-oxygen fuel cell according to the present invention.

In the figure: 1. a housing; 2. a grip; 3. a cartridge housing; 4. a straight pipe; 5. a one-way valve; 6. abutting against the head; 7. bending the pipe; 8. a reaction cylinder; 9. an upper cavity; 10. a lower cavity; 11. an adsorption sheet; 12. a proton exchange membrane; 13. a conduit; 14. a diaphragm head; 15. a top rod; 16. a power assembly; 17. a mounting seat; 18. a guide rail; 19. an eccentric wheel; 20. a connecting rod; 21. a battery cavity; 22. an indicator light; 23. a self-reset button; 24. a binding post; 25. an L-shaped plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, a hydrogen leakage monitoring device for oxyhydrogen fuel cell, comprising a housing 1, the housing 1 comprises a handle 2 and a cylinder 3, the handle 2 is convenient for the tester to hold the device for testing, a straight pipe 4 is inserted in the inner side of the cylinder 3, the straight pipe 4 is the channel for hydrogen leaked by the tested cell to be sucked into a reaction cylinder 8, a check valve 5 is installed on the inner side of the straight pipe 4 by screw thread, the initial state of the spring in the check valve 5 is compressed, so that the air inlet is sealed by a thimble, a butt head 6 is installed on the outer surface of the check valve 5 by screw thread at the end far away from the straight pipe 4, the butt head 6 is in contact with the surface of the tested cell, the butt head 6 covers the leak hole by moving the position of the butt head 6 on the surface of the tested cell, so that the leaked hydrogen enters the straight pipe 4, a bent pipe 7 is installed on the end of the straight pipe 4 far away from the butt head 6 by screw thread of the check valve 5, the reaction cylinder 8 is obliquely arranged by the arrangement of the bent pipe 7, hydrogen lighter than air flows upwards and contacts the adsorption sheet 11 in the lower cavity 10 after the air inlet of the straight pipe 4 is stopped, the reaction cylinder 8 is arranged at the outlet end of the bent pipe 7 far away from the straight pipe 4, the reaction cylinder 8 is a place where hydrogen leaked by a detected battery reacts to generate electricity, the reaction cylinder 8 comprises an upper cavity 9, a lower cavity 10, the adsorption sheet 11 and a proton exchange membrane 12, the upper cavity 9 is a place where oxygen in the air obtains electrons and is combined with hydrogen ions, namely protons to generate water, the hydrogen enters the lower cavity 10 and then exhausts the original air in the device out of the device, the check valve 5 in the guide pipe 13 connected with the lower cavity 10 prevents external air from entering the lower cavity 10, the H-H bonds in the hydrogen are weakened by platinum (Bt) in the adsorption sheet 11, so that the hydrogen is attached to the platinum in a hydrogen atom form, and the adsorption sheet 11 is connected with the indicator lamp 22 and a circuit board by a lead wire, the hydrogen atom in the lower cavity 10 loses the electron carried by itself and then carries positive electricity, the lost electron reaches the adsorption sheet 11 in the upper cavity 9 through a loop, so that the oxygen in the upper cavity 9 obtains the electron, meanwhile, the electron transfer forms current, so that an indicator lamp lights up, the proton exchange membrane 12 only allows the hydrogen ion, namely the proton to pass through, the bottom parts of the upper cavity 9 and the lower cavity 10 are both provided with a conduit 13, the conduit 13 connected with the upper cavity 9 enables the water generated after reaction to flow out, thereby avoiding the water remaining in the device and accelerating the oxidation speed of other components, a moisture absorption material or a drying agent can be placed in the conduit 13 to accelerate the drying speed of the upper cavity 9, one side of the inner side surface of the straight pipe 4 close to the elbow pipe 7 is provided with a diaphragm head 14 in a sliding way, the diaphragm head 14 is similar to a diaphragm in the diaphragm pump, the diaphragm head 14 is matched with the inner wall of the straight pipe 4 when the volume is maximum, and the volume can change along with the movement of the ejector rod 15, therefore, the gas in the straight pipe 4 can be pressed into the reaction cylinder 8 and discharged from the conduit 13, and the relatively pure hydrogen leaked from the leaking hole is sucked into the straight pipe 4, so that the danger that the hydrogen and the air are mixed to be impure and easy to explode can be reduced, and the condition that the detection result of each fuel cell is influenced because the hydrogen in the device is not discharged during continuous detection can be avoided.

In the invention, a push rod 15 is inserted on the inner side surface of a diaphragm head 14, when the push rod 15 slides, the diaphragm head 14 compresses air or hydrogen in a straight pipe 4, when the push rod 15 is ejected, the air pressure in the straight pipe is increased, an ejector pin of a one-way valve 5 in a bent pipe 7 is retracted and is positioned in a passage, an ejector pin in the one-way valve 5 contacted with an abutting head 6 cannot retract, so that air can only enter the bent pipe 7, when the push rod 15 retracts, the ejector pin of the one-way valve 5 in the bent pipe 7 cannot retract, the ejector pin of the one-way valve 5 contacted with the abutting head 6 retracts, so that the air enters the straight pipe 4, the push rod 15 is continuously ejected and retracted, so that the hydrogen leaked by a detected battery enters a reaction cylinder 8, a power assembly 16 is arranged at the bottom of the push rod 15, the power assembly 16 provides power for the movement of the push rod 15, the power assembly 16 comprises a mounting seat 17, a guide rail 18, an eccentric wheel 19 and a connecting rod 20, the mounting seat 17 can be screwed into the inner wall of a cylinder shell 3, the guide rail 18 ensures that the movement of the push rod 15 is always in a linear motion state, the eccentric wheel 19 can be driven by a speed regulating motor, and the connecting rod 20 transmits the power generated when the eccentric wheel 19 rotates to the push rod 15.

According to the invention, the shell 1 is made of ABS plastic, the ABS plastic is hard and not easy to damage, so that the device has a long service life, the abutting head 6 is made of silicic acid gel, the silicic acid gel is very soft, so that when the abutting head 6 is in contact with the surface of a detected battery, a space covered by the abutting head 6 and a space uncovered by the abutting head 6 can be isolated, the situation that external air and hydrogen in the air also enter the straight pipe 4 to influence the judgment of monitoring personnel on the eye leakage position is avoided, the inner side surface of the handle 2 is provided with the battery cavity 21, and the battery cavity 21 is used for installing the battery and can provide power for the operation of the speed regulating motor.

In the invention, an indicator lamp 22 is arranged at one end of the cylinder shell 3 far away from the abutting head 6, when the indicator lamp 22 is lightened, a loop connected with the reaction cylinder 8 is electrified, hydrogen is contained in the straight pipe 4, namely, a leak hole is formed at the covering part of the abutting head 6, the adsorption sheet 11 is platinized sponge nickel, the sponge nickel has a porous structure, the area where hydrogen atoms can be attached is large after the platinum is plated on the surface, the quantity of the adsorption sheet 11 and the abutting head 6 is two groups, and the proton exchange membrane 12 is positioned between the two groups of adsorption sheets 11.

In the present invention, the number of the check valves 5 is three, the radial section of the conduit 13 is curved, the curved conduit 13 ensures that the air and water in the reaction cylinder 8 can flow out from the inside of the apparatus, the reaction cylinder 8 is installed in an inclined manner and fixedly connected to the inner wall of the barrel housing 3, the reaction cylinder 8 installed in an inclined manner not only enables the hydrogen lighter than the air to flow upwards, but also enables the water beads generated after the reaction to flow out of the apparatus by adhering to the inner wall of the inclined conduit 13, and the water beads are difficult to remain in the apparatus, and the apparatus is more practical.

In the invention, the outer surface of the grip 2 is provided with the self-reset button 23 by screw thread, the speed regulating motor is started when the self-reset button 23 is pressed, the speed regulating motor stops running after being loosened, the axial section of the two groups of the abutting heads 6 are respectively circular and M-shaped, so that the abutting heads 6 can be replaced when the leakage hole is at the corner or arc surface or plane, the shape of the current fuel cell can be better adapted to ensure that the gas leaked out of the non-leakage hole can not be absorbed when the detection is carried out, the inner wall of the cylinder shell 3 is provided with the wiring terminal 24, the wiring terminal 24 can be screwed in to install a circuit board, other components sensitive to current, such as a wireless transmission module, an alarm, a control module and the like, can transmit signals to monitoring personnel in time when the hydrogen is leaked in real-time monitoring, the outer surface of the grip 2 is sleeved with the L-shaped plate 25, and the screw hole on the L-shaped plate 25 can be screwed in the screw, therefore, the L-shaped plate 25 can be fixed on the shell of the fuel cell, the device can be placed at a fixed position for real-time monitoring, a leakage hole on the cell can also be taken out and searched, when the device is monitored in real time, the circuit board keeps the cell continuously providing electric energy for the speed regulating motor, and when the device is taken down, the switch connected with the control module is pressed down to enable the cell to be communicated with the speed regulating motor through the self-reset button 23.

The indicator light 22 and the self-reset button 23 of the invention are known technologies which are already disclosed and widely applied to daily life, the model of the indicator light 22 is KL0824G, and the model of the self-reset button 23 is ZB2BA 2C.

In normal times, the battery in the battery cavity 21 continuously supplies power to the speed regulation motor, when hydrogen gas leaks, an alarm connected with a circuit board starts to alarm, a wireless transmission module transmits signals to a detector to enable the detector to check the condition of the electric fuel cell in time, when a leak is found, the handle 2 is held, air around the fuel cell is detected before detection, the self-reset button 23 is pressed to enable the eccentric wheel 19 to rotate, the connecting rod 20 drives the ejector rod 15 to eject and retract in the guide rail 18, the diaphragm head 14 presses air in the straight pipe 4 into the reaction cylinder 8 and discharges the air from the guide pipe 13, external air is sucked into the reaction cylinder 8, the diaphragm head 14 is arranged to conveniently press gas in the straight pipe 4 into the reaction cylinder 8 and discharge the air from the guide pipe 13, then pure hydrogen gas leaking from the leak is sucked into the straight pipe 4, and the risk of impure and easy explosion after the hydrogen gas and the air are mixed can be reduced, the hydrogen entering the reaction cylinder 8 rises to be attached to the adsorption sheet 11 and is converted into H-H when hydrogen exists in the outside air, the hydrogen is attached to platinum of the adsorption sheet 11 in a hydrogen atom form, electrons of the hydrogen atoms enter the upper cavity 9 through the proton exchange membrane 12 in a hydrogen atom, the lost electrons pass through the circuit board, the indicator lamp 22 and the alarm through a lead and reach the adsorption sheet 11 in the upper cavity 9, oxygen in the air in the upper cavity 9 obtains electrons and is combined with hydrogen ions to generate water, meanwhile, the electrons are transferred to form current in a loop, the indicator lamp 22 lights and the alarm alarms, if the outside air does not contain hydrogen, the indicator lamp 22 does not light and the alarm does not alarm, and therefore whether the outside air contains hydrogen or not can be judged, therefore, whether detection is necessary or not is determined, when air exists outside is determined, when a leak is found on the cambered surface or the plane of the hydrogen fuel cell, the abutting head 6 with the circular shaft section can be screwed on the one-way valve 5 connected with the straight pipe 4, when the leak is found on the corner, the abutting head 6 with the M-shaped shaft section is screwed, the adaptability is wider, the abutting head 6 is made of silicate gel with soft texture, when the abutting head 6 is in contact with the surface of the cell to be detected, the space covered by the abutting head 6 and the space uncovered by the abutting head 6 can be isolated, the situation that the external air and hydrogen in the air also enter the straight pipe 4 to influence the judgment of a monitoring person on the position of the leak is avoided, in the process that the surface of the fuel cell moves to abut against the head 6, the detecting person judges the position of the leak through whether the indicator lamp 22 is on or not and whether the alarm is used for judging the position of the leak is realized, the operation is very simple, and the reaction cylinder 8 which is obliquely arranged enables water beads generated after the reaction to be attached to flow out of the inner wall of the inclined conduit 13 This device is difficult to remain inside this device, and is more practical.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.