CN112924731A

CN112924731A - Blind signal separation direct current metering device of polymer hydrogen fuel cell

Info

Publication number: CN112924731A
Application number: CN202110093002.XA
Authority: CN
Inventors: 刘良江; 李庆先; 柏文琦; 向德; 王晋威; 朱宪宇; 刘青; 王柠莎
Original assignee: Hunan Institute of Metrology and Test
Current assignee: Hunan Institute of Metrology and Test
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-06-08
Anticipated expiration: 2041-01-25
Also published as: CN112924731B

Abstract

The invention discloses a blind signal separation direct current metering device of a polymer hydrogen fuel cell, and belongs to the field of hydrogen fuel motors. A blind signal separation direct current metering device of a polymer hydrogen fuel cell comprises a metering device and the hydrogen fuel cell, wherein a rectangular housing is fixedly connected to the rear side wall of the metering device, dust screens are fixedly installed in an air inlet and an air outlet of the rectangular housing, heat dissipation fan blades are rotatably installed in the air inlet through a support, a first rotating rod is rotatably connected between the inner walls of the rectangular housing, rotating shafts of the heat dissipation fan blades and the first rotating rod are respectively connected through two first gears in a meshed mode, a motor is fixedly installed on the side wall of the rectangular housing, and a self-cleaning mechanism matched with the dust screens is arranged in the air outlet; the metering device for the hydrogen fuel cell can effectively dissipate heat, so that the working precision is ensured, and the used dustproof net also has a self-cleaning function.

Description

Blind signal separation direct current metering device of polymer hydrogen fuel cell

Technical Field

The invention relates to the technical field of hydrogen fuel motors, in particular to a blind signal separation direct current metering device of a polymer hydrogen fuel cell.

Background

A hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electrical energy. The basic principle is the reverse reaction of electrolyzed water, hydrogen and oxygen are supplied to the anode and cathode respectively, and after the hydrogen diffuses out through the anode and reacts with the electrolyte, electrons are released to reach the cathode through an external load.

The hydrogen fuel cell generally measures the generated electric quantity through an electric energy metering device, and the existing electric energy metering device finds that the metering device generates a large amount of heat after long-time operation, and the metering precision of the metering device is greatly reduced due to overhigh heat, so that the metering result is influenced.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a blind signal separation direct current metering device of a polymer hydrogen fuel cell.

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

a blind signal separation direct current metering device of a polymer hydrogen fuel cell comprises a metering device and a hydrogen fuel cell, the input end of the metering device is electrically connected with the output end of the hydrogen fuel cell through a connecting wire, the front side wall of the metering device is provided with a display screen, the rear side wall of the metering device is fixedly connected with a rectangular housing, dust screens are fixedly arranged in an air inlet and an air outlet of the rectangular housing, the air inlet is internally and rotatably provided with radiating fan blades through a bracket, a first rotating rod is rotatably connected between the inner walls of the rectangular housing, the rotating shafts of the radiating fan blades are meshed and connected with the first rotating rod through two first gears, the side wall of the rectangular housing is fixedly provided with a motor, the output end of the motor is meshed with the first rotating rod through two second gears, and a self-cleaning mechanism matched with the dust screen is arranged in the air outlet.

Preferably, the self-cleaning mechanism comprises a gas storage tank fixedly mounted on the side wall of the rectangular housing, an output pipe of the gas storage tank extends into the rectangular housing, a timing solenoid valve is fixedly mounted in the output pipe, a transverse pipe parallel to the upper end of the dust screen is arranged in the air inlet, a plurality of uniformly distributed air nozzles are arranged at the lower end of the transverse pipe, an air inlet pipe of the transverse pipe is fixedly connected and communicated with the output pipe through a hose, and a reciprocating mechanism connected with the transverse pipe is arranged in the rectangular housing.

Preferably, reciprocating mechanism is including rotating the first reciprocal lead screw of connection at rectangle housing inner wall, the outer wall cover of first reciprocal lead screw be equipped with rectangle housing inner wall sliding connection's first slider, violently manage fixed connection on the lateral wall of first slider, the outer wall of rectangle housing is connected with the transfer line through the support rotation, be connected through two third gear engagement between the lower extreme of transfer line and the first reciprocal lead screw, be connected through two fourth gear engagement between the upper end of transfer line and the first transfer line.

Preferably, an inflator is fixedly mounted on the side wall of the rectangular housing, an inflation tube of the inflator is fixedly connected and communicated with an input end of the air storage tank, an output end of the motor is fixedly connected with a second reciprocating lead screw, a second sliding block in sliding connection with the outer wall of the rectangular housing is sleeved on the outer wall of the second reciprocating lead screw, and the second sliding block is fixedly connected with a push rod of the inflator through a connecting rod.

Preferably, the upper end fixed mounting of metering device has the deashing pipe, the lower extreme of deashing pipe is equipped with a plurality of shower nozzles that set up to the display screen slope, the deashing pipe passes through connecting pipe and output tube fixed connection and intercommunication.

Preferably, the upper end of the gas storage tank is fixedly connected with an overflow pipe, the tail end of the overflow pipe is fixedly connected and communicated through a connecting pipe, an overflow valve is fixedly installed in the overflow pipe, and check valves are fixedly installed in the overflow pipe and the connecting pipe.

Preferably, sliding connection has and violently manages the complex rectangular pipe in the lower port of air intake, the first magnet of upper end fixedly connected with of rectangular pipe, the lateral wall fixedly connected with of violently managing and the second magnet that first magnet attracted mutually, the lower port endotheca of rectangular pipe is equipped with the third magnet rather than magnetism, the rectangular pipe endotheca is equipped with inhales grey sponge, inhale grey sponge and third magnet fixed connection.

Preferably, both sides of the upper end of the transverse pipe are fixedly connected with rectangular telescopic pipes.

Preferably, a plurality of cooling fins extending into the rectangular housing are fixedly connected to the rear side wall of the metering device.

Preferably, the motor, the second reciprocating screw and the outer wall of the inflator are sleeved with a protective cover.

Compared with the prior art, the invention provides a blind signal separation direct current metering device of a polymer hydrogen fuel cell, which has the following beneficial effects:

1. this polymer hydrogen fuel cell's blind signal separation direct current metering device, the high-pressure gas in the gas holder regularly opens the gassing under the effect of timing solenoid valve, and high-pressure gas in the gas holder then can be carried through output tube and hose and drive in the violently pipe, then spouts the up end of dust screen from the air nozzle of violently managing the lower extreme to blow off the dust of terminal surface under the dust screen, thereby realize the automatically cleaning function of dust screen.

2. This polymer hydrogen fuel cell's blind signal separation direct current metering device, first transfer line drive the transfer line through two fourth gears and rotate, and the transfer line then can drive first reciprocal lead screw through two third gears and rotate, and first reciprocal lead screw then can drive violently the pipe through first slider and slide in the upper end of dust screen is reciprocal to make violently the air nozzle of pipe lower extreme spray the upper end at the dust screen with gaseous even.

3. This polymer hydrogen fuel cell's blind signal separation direct current metering device, the motor can drive the second slider through the reciprocal lead screw of second and slide from top to bottom, and the second slider then can drive the push rod of inflater through the connecting rod and slide from top to bottom, and the inflater then can inflate the gas holder through the gas tube to make the gas holder need not the manual work and aerify, it is more convenient to use.

4. This polymer hydrogen fuel cell's blind signal separation direct current metering device, when the output tube was discharged through timing solenoid valve, the output tube still can be intraductal through the connecting pipe with gaseous transport deashing, then spout the display screen from the shower nozzle of deashing pipe lower extreme on to clear away the dust on the display screen, guaranteed the definition of display screen.

5. This polymer hydrogen fuel cell's blind signal separation direct current metering device, during the dust screen deashing, the rectangle pipe through first magnet and second magnet the effect down with violently manage synchronous horizontal slip, when the air nozzle blows the ash downwards, the dust can drop in the rectangle pipe, then adsorb on inhaling the ash sponge, prevent that the dust from inhaling back to on the lower extreme outer wall of dust screen under the effect of heat dissipation flabellum.

Drawings

FIG. 1 is a schematic structural diagram of a blind signal separation DC metering device of a polymer hydrogen fuel cell according to the present invention;

FIG. 2 is a schematic rear view of a metering device of a blind signal separation DC metering device for a polymer hydrogen fuel cell according to the present invention;

FIG. 3 is a schematic structural diagram of the part A in FIG. 2 of a blind signal separation DC metering device of a polymer hydrogen fuel cell according to the present invention;

FIG. 4 is a schematic structural diagram at B in FIG. 2 of a blind signal separation DC metering device of a polymer hydrogen fuel cell according to the present invention;

FIG. 5 is a schematic structural diagram at C in FIG. 2 of a blind signal separation DC power metering device for a polymer hydrogen fuel cell according to the present invention;

fig. 6 is a schematic structural diagram of a blind signal separation dc power metering device of a polymer hydrogen fuel cell according to the present invention at D in fig. 2.

In the figure: 1. a metering device; 2. a hydrogen fuel cell; 3. a connecting wire; 4. a display screen; 5. a rectangular housing; 6. an air outlet; 7. an air inlet; 8. a motor; 9. a support; 10. a heat dissipation fan blade; 11. a first rotating lever; 12. a first gear; 13. a dust screen; 14. a second gear; 15. a gas storage tank; 16. an output pipe; 17. an electromagnetic valve; 18. a transverse tube; 19. an air nozzle; 20. a hose; 21. an air inlet pipe; 22. a first reciprocating screw; 23. a first slider; 24. a transmission rod; 25. a fourth gear; 26. a third gear; 27. an inflator; 28. a second reciprocating screw; 29. a second slider; 30. a connecting rod; 31. an inflation tube; 32. an overflow pipe; 33. an overflow valve; 34. a one-way valve; 35. a dust removal pipe; 36. a spray head; 37. a connecting pipe; 38. a rectangular tube; 39. a first magnet; 40. a second magnet; 41. ash-absorbing sponge; 42. a third magnet; 43. a heat sink; 44. a telescopic pipe; 45. a shield.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-6, a blind signal separation direct current metering device of a polymer hydrogen fuel cell comprises a metering device 1 and a hydrogen fuel cell 2, wherein an input end of the metering device 1 is electrically connected with an output end of the hydrogen fuel cell 2 through a connecting wire 3, a display screen 4 is arranged on a front side wall of the metering device 1, a rectangular housing 5 is fixedly connected with a rear side wall of the metering device 1, dust screens 13 are fixedly installed in an air inlet 7 and an air outlet 6 of the rectangular housing 5, heat dissipation fan blades 10 are rotatably installed in the air inlet 7 through a support 9, a first rotating rod 11 is rotatably connected between inner walls of the rectangular housing 5, rotating shafts of the heat dissipation fan blades 10 are respectively connected with the first rotating rod 11 through two first gears 12 in a meshing manner, a motor 8 is fixedly installed on a side wall of the rectangular housing 5, and an output end of the motor 8 is connected with the first rotating rod 11 through two, be equipped with in the air outlet 6 with dust screen 13 complex from cleaning mechanism, motor 8 drives first bull stick 11 through two second gears 14 and rotates, first bull stick 11 then can drive heat dissipation flabellum 10 through two first gears 12 and rotate, heat dissipation flabellum 10 then can discharge the heat that metering device 1 sent from air outlet 6, and from air intake 7 inspiratory air, can prevent that metering device 1 from reducing the precision because of the high temperature, and dust screen 13 in the air intake 7 can filter the dust in the air, and from cleaning mechanism can be to the lower terminal surface automatic clearance of dust screen 13, and it is more convenient to use.

Furthermore, a plurality of heat dissipation fins 43 extending into the rectangular housing 5 are fixedly connected to the rear side wall of the metering device 1, so that the heat dissipation capability of the metering device 1 is improved.

Example 2

Referring to fig. 2, 5 and 6, basically the same as embodiment 1, further: the self-cleaning mechanism comprises a gas storage tank 15 fixedly mounted on the side wall of the rectangular housing 5, an output pipe 16 of the gas storage tank 15 extends into the rectangular housing 5, a timing electromagnetic valve 17 is fixedly mounted in the output pipe 16, a transverse pipe 18 parallel to the upper end of the dustproof net 13 is arranged in the air inlet 7, a plurality of uniformly distributed gas nozzles 19 are arranged at the lower end of the transverse pipe 18, an air inlet pipe 21 of the transverse pipe 18 is fixedly connected and communicated with the output pipe 16 through a hose 20, a reciprocating mechanism connected with the transverse pipe 18 is arranged in the rectangular housing 5, high-pressure gas in the gas storage tank 15 is opened and deflated at regular time under the action of the timing electromagnetic valve 17, the high-pressure gas in the gas storage tank 15 is conveyed through the output pipe 16 and the hose 20 to drive the transverse pipe 18, and then is sprayed to the upper end face of the dustproof net 13 from the gas nozzles 19 at the lower end face, the reciprocating mechanism can enable the air nozzle 19 to clean the dust screen 13 more completely.

Furthermore, the reciprocating mechanism comprises a first reciprocating lead screw 22 rotatably connected to the inner wall of the rectangular housing 5, a first slider 23 slidably connected to the inner wall of the rectangular housing 5 is sleeved on the outer wall of the first reciprocating lead screw 22, the horizontal tube 18 is fixedly connected to the side wall of the first slider 23, a transmission rod 24 is rotatably connected to the outer wall of the rectangular housing 5 through a support, the lower end of the transmission rod 24 is engaged with the first reciprocating lead screw 22 through two third gears 26, the upper end of the transmission rod 24 is engaged with the first rotating rod 11 through two fourth gears 25, the first rotating rod 11 drives the transmission rod 24 to rotate through the two fourth gears 25, the transmission rod 24 drives the first reciprocating lead screw 22 to rotate through the two third gears 26, the first reciprocating lead screw 22 drives the horizontal tube 18 to slide reciprocally at the upper end of the dust screen 13 through the first slider 23, so that the air nozzle 19 at the lower end of the transverse pipe 18 sprays air uniformly on the upper end of the dustproof net 13.

Furthermore, both sides of the upper end of the horizontal tube 18 are fixedly connected with rectangular extension tubes 44, when the horizontal tube 18 slides left and right to blow soot, the extension tubes 44 can block the suction force of the radiating fan blades 10, so as to prevent blown dust from being sucked back to the dust screen 13 again, and when the horizontal tube 18 slides to the inner walls of both sides of the rectangular housing 5, the extension tubes 44 can automatically retract and release through self elasticity.

Example 3

Referring to fig. 2 and 4, basically the same as embodiment 1, further: the lateral wall fixed mounting of rectangle housing 5 has inflater 27, the gas tube 31 of inflater 27 and the input fixed connection and the intercommunication of gas holder 15, the reciprocal lead screw 28 of output end fixedly connected with second of motor 8, the outer wall cover of the reciprocal lead screw 28 of second is equipped with the second slider 29 with rectangle housing 5 outer wall sliding connection, second slider 29 passes through connecting rod 30 and inflater 27's push rod fixed connection, motor 8 can drive second slider 29 through the reciprocal lead screw 28 of second and slide from top to bottom, second slider 29 then can drive the push rod of rectangle housing 27 through connecting rod 30 and slide from top to bottom, inflater 27 then can inflate gas holder 15 through gas tube 31, thereby make gas holder 15 need not artifical the inflation, it is more convenient to use.

Furthermore, a protective cover 45 is sleeved on the outer walls of the motor 8, the second reciprocating screw 28 and the inflator 27 for protection.

Example 4

Referring to fig. 1 and 2, basically the same as the embodiment 1, further: metering device 1's upper end fixed mounting has deashing pipe 35, the lower extreme of deashing pipe 35 is equipped with a plurality of shower nozzles 36 that set up to the 4 slopes of display screen, deashing pipe 35 passes through connecting pipe 37 and output tube 16 fixed connection and intercommunication, when output tube 16 exhausts through timing solenoid valve 17, output tube 16 still can carry gas in the deashing pipe 35 through connecting pipe 37, then spout on display screen 4 from shower nozzle 36 of deashing pipe 35 lower extreme, thereby clear away the dust on the display screen 4, display screen 4's definition has been guaranteed.

Furthermore, the upper end fixedly connected with overflow pipe 32 of gas holder 15, the terminal of overflow pipe 32 is because connecting pipe 37 fixed connection and intercommunication, fixedly mounted has overflow valve 33 in the overflow pipe 32, and the equal fixed mounting in inside of overflow pipe 32 and connecting pipe 37 has check valve 34, and when the gas in the gas holder 15 was too much, can carry connecting pipe 37 through overflow pipe 32, spout the deashing on display screen 4 from shower nozzle 36 at last, prevent that unnecessary gas is extravagant.

Example 5

Referring to fig. 1 and 5, basically the same as in embodiment 1, further: a rectangular tube 38 matched with the transverse tube 18 is connected in a sliding way in the lower port of the air inlet 7, a first magnet 39 is fixedly connected at the upper end of the rectangular tube 38, a second magnet 40 attracted with the first magnet 39 is fixedly connected with the side wall of the transverse tube 18, a third magnet 42 attracted with the rectangular tube 38 is sleeved in the lower port of the rectangular tube 38, an ash absorption sponge 41 is sleeved in the rectangular tube 38, the ash absorption sponge 41 is fixedly connected with the third magnet 42, during the dust cleaning of the dust screen 13, the rectangular tube 38 slides to the left and right synchronously with the transverse tube 18 by the action of the first magnet 39 and the second magnet 40, when the air nozzle 19 blows ash downwards, dust falls into the rectangular pipe 38 and is adsorbed to the dust absorption sponge 41, the dust is prevented from being absorbed back to the outer wall of the lower end of the dust screen 13 under the action of the radiating fan blades 10, the dust absorption sponge 41 is soaked with engine oil before use, and the adsorption force of the dust absorption sponge 41 is stronger when the engine oil is used.

The working principle is as follows: in the invention, when in use, the motor 8 drives the first rotating rod 11 to rotate through the two second gears 14, the first rotating rod 11 drives the radiating fan blades 10 to rotate through the two first gears 12, the radiating fan blades 10 discharge heat emitted by the metering device 1 from the air outlet 6 and suck air from the air inlet 7, thus the precision of the metering device 1 is prevented from being reduced due to overhigh temperature, the dust screen 13 in the air inlet 7 can filter dust in the air, the high-pressure gas in the gas storage tank 15 is opened and deflated at fixed time under the action of the fixed-time solenoid valve 17, the high-pressure gas in the gas storage tank 15 is conveyed through the output pipe 16 and the hose 20 to drive the horizontal pipe 18 to be blown to the upper end surface of the dust screen 13 from the air nozzle 19 at the lower end of the horizontal pipe 18, thereby blowing off the dust at the lower end surface of the dust screen 13 and realizing the self-cleaning function of the dust screen 13, at the time, the first rotating rod 11 drives the transmission rod 24 to rotate through two fourth gears 25, the transmission rod 24 drives the first reciprocating lead screw 22 to rotate through two third gears 26, the first reciprocating lead screw 22 drives the transverse pipe 18 to slide on the upper end of the dustproof net 13 in a reciprocating manner through the first slider 23, so that the air nozzle 19 at the lower end of the transverse pipe 18 sprays air on the upper end of the dustproof net 13 uniformly, the motor 8 drives the second slider 29 to slide up and down through the second reciprocating lead screw 28 during the rotation of the motor 8, the second slider 29 drives the push rod of the air pump 27 to slide up and down through the connecting rod 30, the air pump 27 inflates the air storage tank 15 through the air inflation pipe 31, so that the air storage tank 15 does not need to be inflated manually, the use is more convenient, when the output pipe 16 exhausts through the timing electromagnetic valve 17, the output pipe 16 also conveys the air into the dust cleaning pipe 35 through the connecting pipe 37, and then sprays the air onto the display screen 4 from the nozzle 36 at, therefore, dust on the display screen 4 is removed, the definition of the display screen 4 is ensured, during dust cleaning of the dust screen 13, the rectangular pipe 38 synchronously slides left and right with the transverse pipe 18 under the action of the first magnet 39 and the second magnet 40, when the air nozzle 19 blows dust downwards, the dust falls into the rectangular pipe 38 and is adsorbed onto the dust absorption sponge 41 to prevent the dust from being absorbed back to the outer wall of the lower end of the dust screen 13 under the action of the heat dissipation fan blades 10, the dust absorption sponge 41 is soaked with engine oil before use, the adsorption force of the dust absorption sponge 41 is stronger when the engine oil is used, when the dust absorption sponge 41 adsorbs more dust, the dust absorption sponge 41 is pulled out by the third magnet 42 to be replaced and cleaned, when the transverse pipe 18 slides left and right to blow dust, the telescopic pipe 44 can block the suction force of the heat dissipation fan blades 10 to prevent the blown dust from being absorbed back to the dust screen 13 again, when the transverse pipe 18 slides to the inner walls of two sides of the rectangular cover 5, the telescopic tube 44 can be automatically retracted and released by its own elasticity.

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.

Claims

1. The utility model provides a polymer hydrogen fuel cell's blind signal separation direct current metering device, includes metering device (1) and hydrogen fuel cell (2), its characterized in that, the input of metering device (1) passes through connecting wire (3) and hydrogen fuel cell (2) output electric connection, the preceding lateral wall of metering device (1) is equipped with display screen (4), the back lateral wall fixedly connected with rectangle housing (5) of metering device (1), equal fixed mounting has dust screen (13) in air intake (7) and the air outlet (6) of rectangle housing (5), rotate through support (9) in air intake (7) and install heat dissipation flabellum (10), it is connected with first bull stick (11) to rotate between the inner wall of rectangle housing (5), and is a plurality of all connect through two first gears (12) meshing between the pivot of heat dissipation flabellum (10) and first bull stick (11), the side wall of the rectangular housing (5) is fixedly provided with a motor (8), the output end of the motor (8) is meshed with the first rotating rod (11) through two second gears (14), and a self-cleaning mechanism matched with a dust screen (13) is arranged in the air outlet (6).

2. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 1, wherein the self-cleaning mechanism comprises a gas storage tank (15) fixedly mounted on the side wall of the rectangular housing (5), an output pipe (16) of the gas storage tank (15) extends into the rectangular housing (5), a timing solenoid valve (17) is fixedly mounted in the output pipe (16), a transverse pipe (18) parallel to the upper end of the dustproof net (13) is arranged in the air inlet (7), a plurality of uniformly distributed air nozzles (19) are arranged at the lower end of the transverse pipe (18), an air inlet pipe (21) of the transverse pipe (18) is fixedly connected and communicated with the output pipe (16) through a hose (20), and a reciprocating mechanism connected with the transverse pipe (18) is arranged in the rectangular housing (5).

3. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 2, wherein the reciprocating mechanism comprises a first reciprocating lead screw (22) rotatably connected to the inner wall of the rectangular housing (5), a first sliding block (23) slidably connected to the inner wall of the rectangular housing (5) is sleeved on the outer wall of the first reciprocating lead screw (22), the horizontal pipe (18) is fixedly connected to the side wall of the first sliding block (23), a transmission rod (24) is rotatably connected to the outer wall of the rectangular housing (5) through a support, the lower end of the transmission rod (24) is meshed with the first reciprocating lead screw (22) through two third gears (26), and the upper end of the transmission rod (24) is meshed with the first rotating rod (11) through two fourth gears (25).

4. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 2, wherein an inflator (27) is fixedly mounted on a side wall of the rectangular housing (5), an inflation tube (31) of the inflator (27) is fixedly connected and communicated with an input end of the air storage tank (15), an output end of the motor (8) is fixedly connected with a second reciprocating lead screw (28), a second sliding block (29) which is slidably connected with an outer wall of the rectangular housing (5) is sleeved on an outer wall of the second reciprocating lead screw (28), and the second sliding block (29) is fixedly connected with a push rod of the inflator (27) through a connecting rod (30).

5. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 2, wherein an ash cleaning pipe (35) is fixedly installed at the upper end of the metering device (1), a plurality of nozzles (36) which are obliquely arranged towards the display screen (4) are arranged at the lower end of the ash cleaning pipe (35), and the ash cleaning pipe (35) is fixedly connected and communicated with the output pipe (16) through a connecting pipe (37).

6. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 2, wherein an overflow pipe (32) is fixedly connected to the upper end of the gas storage tank (15), the end of the overflow pipe (32) is fixedly connected and communicated through a connecting pipe (37), an overflow valve (33) is fixedly installed in the overflow pipe (32), and a check valve (34) is fixedly installed inside each of the overflow pipe (32) and the connecting pipe (37).

7. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 2, wherein a rectangular tube (38) matched with the transverse tube (18) is slidably connected in the lower port of the air inlet (7), a first magnet (39) is fixedly connected to the upper end of the rectangular tube (38), a second magnet (40) attracted with the first magnet (39) is fixedly connected to the side wall of the transverse tube (18), a third magnet (42) magnetically attracted with the rectangular tube (38) is sleeved in the lower port of the rectangular tube (38), an ash-absorbing sponge (41) is sleeved in the rectangular tube (38), and the ash-absorbing sponge (41) is fixedly connected with the third magnet (42).

8. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 2, characterized in that both sides of the upper end of the transverse tube (18) are fixedly connected with rectangular telescopic tubes (44).

9. The direct current metering device for blind signal separation of the polymer hydrogen fuel cell according to claim 1, characterized in that a plurality of cooling fins (43) extending into the rectangular housing (5) are fixedly connected to the rear side wall of the metering device (1).

10. The device for the blind signal separation direct current metering of the polymer hydrogen fuel cell according to claim 4, wherein the outer walls of the motor (8), the second reciprocating lead screw (28) and the inflator (27) are sleeved with a protective cover (45).