High-pressure hydrogen storage cylinder combined control valve with pressure reduction function for unmanned aerial vehicle

Abstract

The invention discloses a high-pressure hydrogen storage cylinder combined control valve with a pressure reduction function for an unmanned aerial vehicle, and belongs to the technical field of hydrogen storage of unmanned aerial vehicles. A normally-closed manual stop valve is in threaded connection with a vertical hole IV of a main valve body; the normally open manual stop valve is in threaded connection with a vertical hole III7 of the main valve body; the electromagnetic valve is in threaded connection with the vertical hole I of the main valve body; the pressure reducing valve is in threaded connection with a vertical hole II of the main valve body; the lower end face of the connector is fixedly connected with an air pressure sensor and a temperature sensor. The upper end of the connector is communicated with the main channel of the main valve body, and the center of the lower end is communicated with a main channel hydrogen inlet, the hydrogen filter and the flow-limiting valve; the TPRDG is communicated with a left rear channel of the main valve body; and the check valve is communicated with the right front channel of the main valve body. The device highly integrates multiple functions, can reduce the risk of hydrogen leakage, can be mounted at the opening of the airborne high-pressure hydrogen storage cylinder of the hydrogen energy unmanned aerial vehicle, can directly reduce the pressure of high-pressure hydrogen in the airborne high-pressure hydrogen storage cylinder to the pressure required by a hydrogen fuel cell, and is provided for the hydrogen fuel cell of the hydrogen energy unmanned aerial vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen storage for unmanned aerial vehicles, and in particular relates to a high-pressure hydrogen storage cylinder combined control valve with a self-decompression function for unmanned aerial vehicles. Background Art

[0002] As a key carrier of the low-altitude economy, the clean energy of unmanned aerial vehicles has attracted widespread attention. Hydrogen energy is currently a clean, efficient and renewable energy source, and hydrogen fuel cells have high energy conversion efficiency, which has great application value in the field of hydrogen-powered drones. High-pressure hydrogen storage cylinders are currently the most commonly used airborne hydrogen storage equipment on hydrogen-powered drones, and the combination valve of high-pressure hydrogen storage cylinders is the key to determining whether hydrogen-powered drones can use hydrogen safely.

[0003] At present, the functional module integration of the high-pressure hydrogen storage cylinder combined control valve for hydrogen energy drones on the market is poor and has no decompression function. Hydrogen energy drones cannot be directly connected to the airborne high-pressure hydrogen storage cylinder for use, and an external hydrogen pressure reducing valve is required to achieve the required air pressure for the normal operation of the hydrogen fuel cell, which increases the risk of hydrogen leakage. The high-pressure hydrogen storage cylinder combined control valve with a self-contained decompression function for drones disclosed in the present invention can directly reduce the high-pressure hydrogen in the airborne high-pressure hydrogen storage cylinder to the pressure required by the hydrogen fuel cell, and transport it to the hydrogen fuel cell through the hydrogen outlet for use. Summary of the invention

[0004] The present invention provides a high-pressure hydrogen storage cylinder combined control valve with a self-contained pressure reducing function for use in unmanned aerial vehicles, so as to solve the problems that the functional module integration of the existing high-pressure hydrogen storage cylinder combined control valve for unmanned aerial vehicles is low, and the output hydrogen needs to be connected to an external pressure reducing device in order to be supplied to the hydrogen fuel cell, and the risk of hydrogen leakage is reduced.

[0005] The present invention discloses a high-pressure hydrogen storage cylinder combined control valve with a self-decompression function for an unmanned aerial vehicle, which is composed of a main valve body A, a normally closed manual stop valve B, a normally open manual stop valve C, a solenoid valve D, a pressure reducing valve E, a connector F, a TPRDG, a flow limiting valve H, a hydrogen filter I, a check valve J, an air pressure sensor 1 and a temperature sensor 2. The main valve body A is in the shape of a rectangular parallelepiped, and a vertical hole I3, an internal thread I3a, a vertical hole II4, an internal thread II4a, a right rear channel 5, a main channel 6, a vertical hole III7, a left rear channel 8, a vertical hole IV9, an internal thread III9a, a left front channel 10 and a right front channel 11 are arranged on its AA section; a base body 70 of the connector F is in the shape of a tube with a main channel hydrogen inlet 71, and a blind hole I72 and a blind hole II73 are arranged on the lower end surface of the base body 70; the air pressure sensor 1 is fixedly connected to the blind hole II of the connector F. 73; the temperature sensor 2 is fixedly connected to the blind hole Ⅰ72 of the connector F; the normally closed manual stop valve B is connected to the vertical hole Ⅳ9 of the left front channel 10 of the main valve body A by threading; the normally open manual stop valve C is connected to the vertical hole Ⅲ7 of the main channel 6 of the main valve body A by threading; the solenoid valve D is connected to the vertical hole Ⅰ3 of the main valve body A by threading; the pressure reducing valve E is connected to the vertical hole Ⅱ4 of the main valve body A by threading; the upper end of the connector F is fixedly connected to the lower side of the main valve body A, and the main channel hydrogen inlet 71 is connected to the main channel 6 of the main valve body A; the right part of the TPRDG is connected to the left end of the left rear channel 8 of the main valve body A by threading; the upper part of the flow limiting valve H is connected to the lower part of the hydrogen filter I by threading, and the hydrogen filter I is fixed to the main channel hydrogen inlet 71 of the connector F; the check valve J is fixedly connected to the right end of the left front channel 11 of the main valve body A.

[0006] The normally closed manual stop valve B is composed of a nut seat Ⅰ12, a connecting rod Ⅰ13, a valve body Ⅰ14, a pressure plate Ⅰ15, a positioning plate Ⅰ20 and a bolt Ⅰ21. The bolt Ⅰ21, the positioning plate Ⅰ20, the nut seat Ⅰ12, the connecting rod Ⅰ13 and the valve body Ⅰ14 are arranged in order from top to bottom; an insertion groove for the positioning plate Ⅰ20 is provided in the middle of the bolt Ⅰ21, the positioning plate Ⅰ20 is placed in the insertion groove and is slidably connected with the bolt Ⅰ21, and the lower part of the bolt Ⅰ21 is threadedly connected to the nut seat Ⅰ12; the upper end of the connecting rod Ⅰ13 is fixedly connected to the lower side of the nut seat Ⅰ12, the middle part of the connecting rod Ⅰ13 is slidably connected to the center hole of the upper plate of the valve body Ⅰ14, and a sealing ring b19 is provided in the inner ring of the center hole; the lower end of the connecting rod Ⅰ13 is fixedly connected to the upper side of the pressure plate Ⅰ15, and a sealing gasket Ⅰ18 is provided in the lower side of the pressure plate Ⅰ15; the valve body Ⅰ14 is cylindrical, and a sealing ring a17 is provided in the upper part of the outer ring of the openings at both ends, and a hydrogen port Ⅰ16 is provided in the upper inner part of the valve body Ⅰ14.

[0007] The normally open manual stop valve C is composed of a bolt II 22, a pressure plate II 29, a valve body II 30, a connecting rod II 31, a nut seat II 32 and a positioning plate II 33. The bolt II 22, the positioning plate II 33, the nut seat II 32, the connecting rod II 31 and the valve body II 30 are arranged in order from top to bottom. An insertion groove for the positioning plate II 33 is provided in the middle of the bolt II 22. The positioning plate II 33 is placed in the insertion groove and is slidably connected to the bolt II 22. The lower part of the bolt II 22 is threadedly connected to the nut seat II 32. The upper end of the connecting rod Ⅱ31 is fixedly connected to the bottom of the nut seat Ⅱ32, and the middle part of the connecting rod Ⅱ31 is slidably connected to the center hole of the upper plate of the valve body Ⅱ30, and a sealing ring c23 is provided on the inner ring of the center hole; the lower end of the connecting rod Ⅱ31 is fixedly connected to the top of the pressure plate Ⅱ29, and a sealing gasket Ⅱ28 is provided on the bottom of the pressure plate Ⅱ29; the valve body Ⅱ30 is cylindrical, and a sealing ring d24 is provided on the upper part of its outer ring, a sealing ring e26 is provided on the lower part of the outer ring, a hydrogen inlet Ⅱ27 is provided on the lower part of the inner ring, and a hydrogen outlet Ⅰ25 is provided on the right side of the valve body Ⅱ30.

[0008] The solenoid valve D is composed of a spring I34, a push rod I35, a junction box 36, a spring II37, a valve bonnet 38, a top plate 39, a valve body III40, an iron core 46, an electromagnet 47 and a push rod II48. The junction box 36, the valve bonnet 38 and the valve body III40 are arranged in sequence from top to bottom and fixedly connected. The middle of the push rod I35 is slidably connected to the center hole of the valve bonnet 38, and a sealing ring f45 is provided at the lower end of the center hole of the valve bonnet 38; the lower end of the push rod I35 is fixedly connected to the top of the top plate 39, and the spring II37 is sleeved on the push rod I35 At the lower part, the upper end of the spring II 37 is limited by the valve cap 38; a sealing gasket c43 is provided under the top plate 39; an air inlet I 42 is provided on the left side of the lower part of the valve body III 40, and a hydrogen outlet 41 is provided on the lower side of the valve body III 40; the outer ring of the electromagnet 47 is fixedly connected to the inside of the junction box 36; the upper part of the push rod I 35 is fixedly connected to the inner ring of the iron core 46, and the outer ring of the iron core 46 is slidably connected to the inner ring of the electromagnet 47; the push rod II 48 passes through the center hole of the upper plate of the junction box 36 and the spring I 34, and the lower end of the push rod II 48 is fixedly connected to the upper surface of the iron core 46.

[0009] The pressure reducing valve E is composed of a valve core 50, a valve cover 51, a spring 52, a fixed plate 53, a piston 54, a valve body IV55, a support rod pair 65 and a slide plate 69. The valve cover 51 and the valve body IV55 are arranged up and down and fixedly connected; the bottom of the fixed plate 53 is fixedly connected to the top of the valve body IV55, and a through hole is provided on the fixed plate 53. The bottom of the support rod pair 65 passes through the through hole and is fixedly connected to the top of the piston 54; the spring 52 is sleeved on the upper part of the valve core 50, and the upper end of the spring 52 is limited by the slide plate 69. The inner ring of the slide plate 69 is slidably connected to the upper part of the valve core 50, and the outer ring of the slide plate 69 is slidably connected to the inner ring of the valve cover 51. The outer ring of the slide plate 69 is provided with a sealing ring d66; a balancing chamber 68 is provided between the upper surface of the slide plate 69 and the top surface of the valve cover 51; the valve core 50 is provided with a center hole 49, the right side of the middle of the center hole 49 is connected with the air outlet channel 61, and a drainage hole 58 is provided near the lower end of the center hole 49, and the drainage hole 58 is connected with the decompression chamber 59 at the lower part of the valve body IV55; the valve core 50 is located in the valve body IV55 and the valve cover 51, and the outer ring of the valve core 50 is provided with sealing rings k67, h63 and g62 from top to bottom; the outer ring of the piston 54 is provided with a sealing ring i64 near the upper end, and the lower end of the piston 54 is provided with a sealing gasket V60; an air chamber 57 is provided between the piston 54 and the valve body IV55, and an air inlet II56 is provided on the left side of the air chamber 57; the inner ring of the piston 54 is slidably connected to the middle of the valve core 50, and the upper end of the piston 54 is fixedly connected to the fixing plate 53 through a support rod pair 65.

[0010] The TPRDG is composed of a valve body V76 and a temperature-sensitive glass ball 78. The valve body V76 is cylindrical. The temperature-sensitive glass ball 78 is fixedly connected between the positioning groove 77 on the left part of the valve body V76 and the supporting groove 80 in the middle part. A sealing ring m75 is provided at the right end of the temperature-sensitive glass ball 78 and the supporting groove 80; the right end of the valve body V76 is a hydrogen outlet III81, the outer ring of the right part of the valve body V76 is provided with a sealing ring l74, and the left part of the valve body V76 is provided with a hydrogen outlet III79.

[0011] The hydrogen filter I is composed of a hydrogen filter 83 and a valve body VI84. The valve body VI84 is in a cylindrical shape. The hydrogen filter 83 is fixedly connected to the valve body VI84. A sealing ring n82 is provided on the upper outer ring of the valve body VI84, a sealing ring o85 is provided on the lower outer ring of the valve body VI84, and an external thread V86 is provided on the lower outer ring of the valve body VI84.

[0012] The check valve J is composed of a top plate II 93, a spring V 94 and a valve body VIII 98. The valve body VIII 98 is cylindrical with a support plate 95 in the middle. The right side of the support plate 95 is connected to the top plate II 93 via the spring V 94. A sealing gasket VI 99 is provided on the right side of the top plate II 93. The left side of the valve body VIII 98 is a flow port 96, and the right side of the valve body VIII 98 is a hydrogen filling port 97.

[0013] The limiting valve H is composed of a pressure plate III 88, a spring IV 89, a valve body VII 90 and a positioning rod 91. The valve body VII 90 is an open cylinder, and its upper inner ring is provided with an internal thread IV 92; the positioning rod 91 is fixedly connected to the bottom surface of the valve body VII 90, the spring IV 89 is sleeved on the positioning rod 91, the upper end of the spring IV 89 is fixedly connected to the pressure plate III 88, the pressure plate III 88 is slidably connected to the positioning rod 91, and a flow port 87 is provided in the middle of the inner ring of the valve body VII 90.

[0014] The right rear channel 5 is communicated with the right front channel 11, and is communicated with the main channel 6 through the vertical hole III7. The left rear channel 8 is communicated with the main channel 6, and the left front channel 10 is communicated with the main channel 6. The normally closed manual stop valve B is communicated with the main channel 6 through the left front channel 10. The hydrogen outlet I25 of the normally open manual stop valve C is communicated with the right rear channel 5 and the right front channel 11, and the hydrogen outlet II27 is communicated with the main channel 6. The solenoid valve D and the pressure reducing valve E are communicated through the right rear channel 5.

[0015] A main channel is provided in the connector F, the upper end of which is communicated with the main channel 6 in the main valve body A, and the lower end of which is communicated with the main channel hydrogen inlet 71, the hydrogen filter I, and the flow limiting valve H; TPRDG is communicated with the left rear channel 8; and the check valve J is communicated with the right front channel 11.

[0016] The beneficial effects of the present invention are as follows: a high-pressure hydrogen storage cylinder combined control valve with a self-decompression function suitable for a hydrogen energy drone hydrogen supply system for drones is provided, which integrates a normally closed manual stop valve, a normally open manual stop valve, a solenoid valve, a pressure reducing valve, a TPRD, a current limiting valve, a hydrogen filter and a check valve on a valve body of a main valve body, and can directly supply the high-pressure hydrogen in the high-pressure hydrogen storage cylinder to an airborne hydrogen fuel cell after the pressure is reduced, thereby reducing the leakage points of the airborne hydrogen storage system and greatly improving the safety of the airborne hydrogen storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A top view of a combined control valve for a high-pressure hydrogen storage cylinder with a decompression function for use with drones;

[0018] Figure 2 This is a bottom view of a high-pressure hydrogen storage cylinder combined control valve with a built-in decompression function for use in drones;

[0019] Figure 3 for Figure 2 A_A section view of the main valve body A;

[0020] Figure 4 A schematic diagram of the connection relationship between some components in the A_A section of the main valve body A and the main valve body A;

[0021] Figure 5 A top view of the main valve body A;

[0022] Figure 6 for Figure 5 B_B section view of the main valve body A;

[0023] Figure 7 It is a structural schematic diagram of a normally closed manual stop valve B;

[0024] Figure 8 It is a structural schematic diagram of a normally open manual stop valve C;

[0025] Fig. 9 It is a structural schematic diagram of the solenoid valve D;

[0026] Fig.10 It is a structural schematic diagram of the pressure reducing valve E;

[0027] Fig.11 is a schematic diagram of the structure of connector F;

[0028] Fig.12 It is a schematic diagram of the structure of TPRD G;

[0029] Fig.13 Schematic diagram of the structure of the flow limiting valve H;

[0030] Fig.14 It is a structural schematic diagram of a hydrogen filter I;

[0031] Fig.15 This is a schematic diagram of the structure of the check valve J;

[0032] Fig.16 Schematic diagram of the application scenario of the high-pressure hydrogen storage cylinder combined control valve with self-decompression function for UAV, where: a is a top view, b is a bottom view, c is a side view, and d is a rear view;

[0033] Among them: A. Main valve body B. Normally closed manual stop valve C. Normally open manual stop valve D. Solenoid valve E. Pressure reducing valve F. Connector G. TPRD H. Flow limiting valve I. Hydrogen filter J. Check valve 1. Air pressure sensor 2. Temperature sensor 3. Vertical hole I 3a. Internal thread I 4. Vertical hole II 4a. Internal thread II 5. Right rear channel 6. Main channel 7. Vertical hole III 8. Left rear channel 9. Vertical hole IV 9a. Internal thread III 10. Left front channel 11. Right front channel 12. Nut seat I 13. Connecting rod I 14. Valve body I 14a. External thread I 15. Pressing plate I 16. Hydrogen outlet I 17. Sealing ring a 18. Sealing gasket I 19. Sealing ring b 20. Positioning plate I 21. Bolt I 22. Bolt II 23. Sealing ring c 24. Sealing ring d 25. Hydrogen outlet I 26. Sealing ring e 27. Hydrogen port II 28. Sealing pad II 29. Pressing plate II 30. Valve body II 30a. External thread II 31. Connecting rod II 32. Nut seat II 33. Positioning plate II 34. Spring I 35. Push rod I 36. Junction box 37. Spring II 38. Valve cap 39. Top plate I 40. Valve body III 40a. External thread III 41. Hydrogen outlet II 42. Air inlet I 43. Sealing pad III 44. Sealing pad IV 45. Sealing ring f 46. Iron core 47. Electromagnet 48. Push rod II 49. Center hole 50. Valve core 51. Valve cover 52. Spring III 53. Fixed plate 54. Piston 55. Valve body IV 55a. External thread IV 56. Air inlet II 57. Air chamber 58. Drainage hole 59. Decompression chamber 60. Sealing pad V 61. Air outlet channel 62. Sealing ring g 63. Sealing ring h 64. Sealing ring i 65. Support rod pair 66. Sealing ring j 67. Sealing ring k 68. Balance chamber 69. Constant pressure plate 70. Base 71. Main channel hydrogen inlet 72. Blind hole I 73. Blind hole II 74. Sealing ring l 75. Sealing ring m 76. Valve body V 77. Positioning groove 78. Temperature-sensitive glass ball 79. Hydrogen outlet III 80. Support groove 81. Hydrogen outlet III 82. Sealing ring n 83. Hydrogen filter 84. Valve body VI 85. Sealing ring o 86. External thread V87. Flow port88. Pressure plate III89. Spring IV90. Valve body VII91. Positioning rod92. Internal thread IV93. Top plate II94. Spring V95. Support plate96. Flow port97. Hydrogen filling port98. Valve body VIII99. Sealing gasket VI100. Hydrogen fuel cell installation position101. A high-pressure hydrogen storage cylinder combined control valve with self-decompression function for unmanned aerial vehicles102. Airborne high-pressure hydrogen storage cylinder103. Hydrogen filling port. DETAILED DESCRIPTION

[0034] The present invention is described below with reference to the accompanying drawings.

[0035] like Figure 1-Figure 6As shown, a high-pressure hydrogen storage cylinder combined control valve with a self-decompression function for an unmanned aerial vehicle of the present invention is composed of a main valve body A, a normally closed manual stop valve B, a normally open manual stop valve C, a solenoid valve D, a pressure reducing valve E, a connector F, TPRDG, a flow limiting valve H, a hydrogen filter I, a check valve J, an air pressure sensor 1 and a temperature sensor 2. The main valve body A is a rectangular parallelepiped, and its AA section is provided with a vertical hole I3, an internal thread I3a, a vertical hole II4, an internal thread II4a, a right rear channel 5, a main channel 6, a vertical hole III7, a left rear channel 8, a vertical hole IV9, an internal thread III9a, a left front channel 10 and a right front channel 11; the base 70 of the connector F is tubular with a main channel hydrogen inlet 71, and the lower end surface of the base 70 is provided with a blind hole I72 and a blind hole II73; the air pressure sensor 1 is fixedly connected to the blind hole of the connector F. Ⅱ73; the temperature sensor 2 is fixedly connected to the blind hole Ⅰ72 of the connector F; the normally closed manual stop valve B is threadedly connected to the vertical hole Ⅳ9 of the left front channel 10 of the main valve body A; the normally open manual stop valve C is threadedly connected to the vertical hole Ⅲ7 of the main channel 6 of the main valve body A; the solenoid valve D is threadedly connected to the vertical hole Ⅰ3 of the main valve body A; the pressure reducing valve E is threadedly connected to the vertical hole Ⅱ4 of the main valve body A; the upper end of the connector F is fixedly connected to the bottom of the main valve body A, and the main channel hydrogen inlet 71 is connected to the main channel 6 of the main valve body A; the right part of the TPRDG is threadedly connected to the left end of the left rear channel 8 of the main valve body A; the upper part of the flow limiting valve H is threadedly connected to the lower part of the hydrogen filter I, and the hydrogen filter I is fixedly connected to the main channel hydrogen inlet 71 of the connector F; the check valve J is fixedly connected to the right end of the left front channel 11 of the main valve body A. The right rear channel 5 of the main valve body A is in communication with the right front channel 11, and is in communication with the main channel 6 through the vertical hole III7. The left rear channel 8 is in communication with the main channel 6, and the left front channel 10 is in communication with the main channel 6. The normally closed manual stop valve B is in communication with the main channel 6 through the left front channel 10; the hydrogen outlet I25 of the normally open manual stop valve C is in communication with the right rear channel 5 and the right front channel 11, and the hydrogen outlet II27 is in communication with the main channel 6; the solenoid valve D and the pressure reducing valve E are in communication with the right rear channel 5; the main channel is provided in the connector F, the upper end of which is in communication with the main channel 6 in the main valve body A, and the lower end of which is in communication with the main channel hydrogen inlet 71, the hydrogen filter I, and the flow limiting valve H; the TPRDG is in communication with the left rear channel 8; and the check valve J is in communication with the right front channel 11.

[0036] like Figure 1 , Figure 3-7As shown, the normally closed manual stop valve B is composed of a nut seat Ⅰ12, a connecting rod Ⅰ13, a valve body Ⅰ14, a pressure plate Ⅰ15, a positioning plate Ⅰ20 and a bolt Ⅰ21. The bolt Ⅰ21, the positioning plate Ⅰ20, the nut seat Ⅰ12, the connecting rod Ⅰ13 and the valve body Ⅰ14 are arranged in order from top to bottom; an insertion groove for the positioning plate Ⅰ20 is provided in the middle of the bolt Ⅰ21, the positioning plate Ⅰ20 is placed in the insertion groove and is slidably connected with the bolt Ⅰ21, and the lower part of the bolt Ⅰ21 The nut seat Ⅰ12 is threadedly connected; the upper end of the connecting rod Ⅰ13 is fixedly connected to the bottom of the nut seat Ⅰ12, and the middle part of the connecting rod Ⅰ13 is slidably connected to the center hole of the upper plate of the valve body Ⅰ14, and a sealing ring c19 is provided in the inner ring of the center hole; the lower end of the connecting rod Ⅰ13 is fixedly connected to the upper side of the pressure plate Ⅰ15, and a sealing gasket Ⅰ17 is provided under the pressure plate Ⅰ15; the valve body Ⅰ14 is cylindrical, and a sealing ring a17 is provided on the upper part of the outer ring of the openings at both ends, and a hydrogen inlet Ⅰ16 is provided in the upper inner part of the valve body Ⅰ14. The valve body Ⅰ14 of the normally closed manual stop valve B is provided with an external thread Ⅰ14a on the outside, and the vertical hole Ⅳ9 is provided with an internal thread Ⅲ9a. The normally closed manual stop valve B is installed in the vertical hole Ⅳ9 in the main valve body A by threaded connection. The vertical hole Ⅳ9 is provided with a groove for the positioning plate Ⅰ20 to be embedded. After installation, the bolt Ⅰ21 can only rotate but not move. The left end opening of the valve body Ⅰ14 is connected to the main channel 6 through the left front channel 10, and the right end opening of the valve body Ⅰ14 is connected to the outside through the left front channel 10. The openings at both ends of the valve body Ⅰ14 are connected through the hydrogen port Ⅰ16. The sealing ring a17, the sealing gasket Ⅰ18, and the sealing ring b19 seal the normally closed manual stop valve B to ensure that hydrogen will not leak through the normally closed manual stop valve B, the left front channel 10, and the vertical hole Ⅳ9.

[0037] Under normal working conditions, the pressure plate Ⅰ15 and the hydrogen port Ⅰ16 are sealed by the sealing gasket Ⅰ1, and the hydrogen channel is blocked. The high hydrogen gas from the high-pressure hydrogen storage tank onboard the hydrogen energy drone flows into the left front channel 10 through the main channel 6, and the flow is blocked when the manual stop valve B is closed, and it cannot be discharged. When an emergency occurs and it is necessary to manually relieve the high-pressure hydrogen in the high-pressure hydrogen storage tank onboard the hydrogen energy drone in time, it is necessary to manually turn the bolt Ⅰ21 to drive the nut seat Ⅰ12 to move upward, the connecting rod Ⅰ13 and the pressure plate Ⅰ15 move upward synchronously, the hydrogen port Ⅰ16 opens, and the hydrogen flows into the left front channel 10 through the main channel 6, and the manual stop valve B is closed to flow to the outside to be discharged, completing the manual pressure relief.

[0038] like Figure 1 , Figure 3 , Figure 4 , Figure 8As shown, the normally open manual stop valve C is composed of a bolt Ⅱ22, a pressure plate Ⅱ29, a valve body Ⅱ30, a connecting rod Ⅱ31, a nut seat Ⅱ32 and a positioning plate Ⅱ33. The bolt Ⅱ22, the positioning plate Ⅱ33, the nut seat Ⅱ32, the connecting rod Ⅱ31 and the valve body Ⅱ30 are arranged in order from top to bottom. An insertion groove for the positioning plate Ⅱ33 is provided in the middle of the bolt Ⅱ22. The positioning plate Ⅱ33 is placed in the insertion groove and is slidably connected with the bolt Ⅱ22. The lower part of the bolt Ⅱ22 is threadedly connected to the nut seat Ⅱ32. The upper end of the connecting rod Ⅱ31 is fixedly connected to the bottom of the nut seat Ⅱ32, and the middle part of the connecting rod Ⅱ31 is slidably connected to the center hole of the upper plate of the valve body Ⅱ30, and a sealing ring c23 is provided on the inner ring of the center hole; the lower end of the connecting rod Ⅱ31 is fixedly connected to the top of the pressure plate Ⅱ29, and a sealing gasket Ⅱ28 is provided on the bottom of the pressure plate Ⅱ29; the valve body Ⅱ30 is cylindrical, and a sealing ring d24 is provided on the upper part of its outer ring, a sealing ring e26 is provided on the lower part of the outer ring, a hydrogen inlet Ⅱ27 is provided on the lower part of the inner ring, and a hydrogen outlet Ⅰ25 is provided on the right side of the valve body Ⅱ30.

[0039] The valve body Ⅱ30 of the normally open manual stop valve C is provided with an external thread Ⅱ30a on its periphery. The installation method is the same as that of the normally closed manual stop valve B. The normally open manual stop valve C is installed in the vertical hole Ⅲ7 by threaded connection. The vertical hole Ⅲ7 is provided with a groove for the positioning plate Ⅱ33 to be embedded. After the installation is completed, the bolt Ⅱ22 can only rotate but not move. The hydrogen outlet Ⅰ25 of the normally open manual stop valve C is communicated with the right rear channel 5 and the right front channel 11, and the hydrogen outlet Ⅱ27 is communicated with the main channel 6; the main channel 6 is communicated with the right rear channel 5 and the right front channel 11 through the normally open manual stop valve C. The sealing ring c23, the sealing ring d24, and the sealing ring e26 seal the normally open manual stop valve C to ensure that hydrogen will not leak through the normally open manual stop valve C, the main channel 6, the right rear channel 5, the right front channel 11 and the vertical hole Ⅲ7.

[0040] Under normal working conditions, the hydrogen port II27 is normally open, and the high-pressure hydrogen from the high-pressure hydrogen storage tank onboard the hydrogen energy UAV flows into the hydrogen port II27 through the main channel 6, and flows into the right rear channel 5 and the right front channel 11 through the hydrogen outlet I25. When encountering an emergency, when the right rear channel 5 and the right front channel 11 need to be closed at the same time, it is necessary to manually turn the bolt II22 to drive the nut seat II32 to move downward, and the connecting rod II31 and the pressure plate II29 move downward synchronously until the pressure plate II29 and the hydrogen port II27 are completely sealed through the sealing gasket II28, and at this time, the main channel 6 is blocked from the right rear channel 5 and the right front channel 11.

[0041] like Figure 1 , Figure 3-6 , Fig. 9As shown, the solenoid valve D is composed of a spring Ⅰ34, a push rod Ⅰ35, a junction box 36, a spring Ⅱ37, a valve bonnet 38, a top plate 39, a valve body Ⅲ40, an iron core 46, an electromagnet 47 and a push rod Ⅱ48. The junction box 36, the valve bonnet 38 and the valve body Ⅲ40 are arranged in sequence from top to bottom and fixedly connected. The middle part of the push rod Ⅰ35 is slidably connected with the center hole of the valve bonnet 38, and a sealing ring f45 is provided at the lower end of the center hole of the valve bonnet 38; the lower end of the push rod Ⅰ35 is fixedly connected to the top of the top plate 39, and the spring Ⅱ37 is sleeved under the push rod Ⅰ35 The upper end of the spring II 37 is limited by the valve cap 38; a sealing gasket c43 is provided under the top plate 39; an air inlet I 42 is provided on the left side of the lower part of the valve body III 40, and a hydrogen outlet II 41 is provided on the lower side of the valve body III 40; the outer ring of the electromagnet 47 is fixedly connected to the terminal box 36; the upper part of the push rod I 35 is fixedly connected to the inner ring of the iron core 46, and the outer ring of the iron core 46 is slidably connected to the inner ring of the electromagnet 47; the push rod II 48 passes through the central hole of the upper plate of the terminal box 36 and the spring I 34, and the lower end of the push rod II 48 is fixedly connected to the upper surface of the iron core 46.

[0042] The outer periphery of the valve body III40 of the solenoid valve D is provided with an external thread III40a, and the vertical hole I3 in the right rear channel 5 is provided with an internal thread I3a. The solenoid valve D is installed in the vertical hole I3 by threaded connection. The valve body III40 is a cylinder, and the air inlet I42 and the hydrogen outlet II41 are provided with sealing rings on the outer periphery. The sealing gasket c43, the sealing gasket IV44 and the sealing ring f45 seal the solenoid valve D to ensure that hydrogen will not leak through the solenoid valve D and the right rear channel 5.

[0043] When the hydrogen energy drone controller does not issue a power-on command to the solenoid valve D in the airborne hydrogen storage system, the spring I34 presses down the iron core 46 and the push rod I35, and the spring II37 presses down the top plate 39. At this time, the top plate 39 and the through hole in the valve body III40 are sealed by the sealing gasket c43, and the passages of the air inlet I42 and the hydrogen outlet II41 are blocked. At this time, the low-pressure hydrogen discharged through the pressure reducing valve E cannot be discharged through the solenoid valve D. When the hydrogen energy drone controller sends a power-on command to the solenoid valve D in the airborne hydrogen storage system, the electromagnet 47 is energized through the junction box 36 to generate a magnetic field, and the iron core 46 drives the push rod I35 and the top plate 39 to move upward. At this time, the channel between the air inlet I42 and the hydrogen outlet II41 of the solenoid valve D is opened, and the low-pressure hydrogen can flow out through the solenoid valve D.

[0044] like Figure 1 , Figure 3-6 , Fig.10As shown, the pressure reducing valve E is composed of a valve core 50, a valve cover 51, a spring 52, a fixed plate 53, a piston 54, a valve body IV55, a support rod pair 65 and a slide plate 69. The valve cover 51 and the valve body IV55 are arranged up and down and fixedly connected; the bottom of the fixed plate 53 is fixedly connected to the top of the valve body IV55, and a through hole is provided on the fixed plate 53. The bottom of the support rod pair 65 passes through the through hole and is fixedly connected to the top of the piston 54; the spring 52 is sleeved on the upper part of the valve core 50, and the upper end of the spring 52 is limited by the slide plate 69. The inner ring of the slide plate 69 is slidably connected to the upper part of the valve core 50, and the outer ring of the slide plate 69 is slidably connected to the inner ring of the valve cover 51. The outer ring of the slide plate 69 is provided with a sealing ring d66; a balancing chamber 68 is provided between the upper surface of the slide plate 69 and the top surface of the valve cover 51; the valve core 50 is provided with a center hole 49, the right side of the middle of the center hole 49 is connected with the air outlet channel 61, and a drainage hole 58 is provided near the lower end of the center hole 49, and the drainage hole 58 is connected with the decompression chamber 59 at the lower part of the valve body IV55; the valve core 50 is located in the valve body IV55 and the valve cover 51, and the outer ring of the valve core 50 is provided with sealing rings k67, h63 and g62 from top to bottom; the outer ring of the piston 54 is provided with a sealing ring i64 near the upper end, and the lower end of the piston 54 is provided with a sealing gasket e60; an air chamber 57 is provided between the piston 54 and the valve body IV55, and an air inlet II56 is provided on the left side of the air chamber 57; the inner ring of the piston 54 is slidably connected to the middle of the valve core 50, and the upper end of the piston 54 is fixedly connected to the fixing plate 53 through a support rod pair 65.

[0045] The valve body IV55 of the pressure reducing valve E is provided with an external thread IV55a on its periphery, and is installed in the vertical hole Ⅱ4 by threaded connection with the internal thread Ⅱ4a in the vertical hole Ⅱ4. The valve body IV55 is a cylinder, and the air inlet Ⅱ56 and the air outlet channel 61 are provided with sealing rings matching the diameter of the right rear channel 5 on their peripheries to seal the pressure reducing valve E and the right rear channel 5 to prevent hydrogen leakage. The sealing rings g62, h63 and i64 seal the valve core 50, the piston 54 and the valve body IV55 to prevent the hydrogen in the air chamber 57 and the pressure reducing chamber 59 from leaking out through any path other than the drainage hole 58.

[0046] Initially, the high-pressure hydrogen in the high-pressure hydrogen storage tank onboard the hydrogen energy UAV flows into the right rear channel 5 through the main channel 6, and the high-pressure hydrogen with a pressure of P1 enters the air chamber 57 through the air inlet II 56, and enters the decompression chamber 59 through the relatively narrow channel between the valve body IV 55 and the valve core 50. The hydrogen pressure in the decompression chamber 59 is P2, and the hydrogen pressure in the outlet channel 61 is P3, P1 = P2 = P3, achieving a pressure stabilization effect. As the hydrogen pressure in the balance chamber 68 increases, the air pressure is greater than the initial elastic force of the spring 52, and the slide plate 69 is pressed down, driving the support rod pair 65 and the piston 54 to move down along the valve core 50. The channel between the bottom of the piston 54 and the valve body IV 55 becomes narrower, and the hydrogen flow rate flowing into the decompression chamber 59 decreases, and then the pressure decreases. The hydrogen pressure in the decompression chamber 59 is P2', and the hydrogen pressure in the outlet channel 61 is P3'. At this time, P1>P2'=P3', achieving a decompression effect. The replaceable spring 52 is selected with a spring 52 of suitable elastic force to reduce the high-pressure hydrogen through the pressure reducing valve E to reach the required air pressure of the hydrogen fuel cell in the hydrogen energy UAV and discharge it into the right rear channel 5 from the air outlet channel 61. The low-pressure hydrogen enters the air inlet Ⅰ42 of the solenoid valve D through the right rear channel 5.

[0047] like Figure 2-4 , Fig.12 As shown, TPRDG consists of a valve body V76 and a temperature-sensitive glass ball 78. The valve body V76 is cylindrical. The temperature-sensitive glass ball 78 is fixed between the positioning groove 77 on the left part of the valve body V76 and the supporting groove 80 in the middle part. A sealing ring m75 is provided at the right end of the temperature-sensitive glass ball 78 and the supporting groove 80. The right end of the valve body V76 is a hydrogen outlet III81, the outer ring of the right part of the valve body V76 is provided with a sealing ring l74, and the left part of the valve body V76 is provided with a hydrogen outlet III79. The valve body V76 of TPRDG is provided with external threads on its outer periphery and is installed on the left port of the left rear channel 8 through threaded connection. The sealing ring l seals the TPRDG and the left rear channel 8 to prevent hydrogen leakage. The right end of the hydrogen port III81 is connected to the left rear channel 8, and the left end of the hydrogen port III81 is connected to the bottom of the temperature-sensitive glass ball 78 through the inside of the valve body V76. The temperature-sensitive glass ball 78 is sealed with the support groove 80 through the sealing ring m75, blocking the hydrogen port III81 and the hydrogen outlet III79.

[0048] The high-pressure hydrogen in the high-pressure hydrogen storage tank onboard the hydrogen energy UAV flows into the left rear channel 8 through the main channel 6, and enters the interior of the valve body V76 through the hydrogen port III81. When the hydrogen temperature reaches 110℃±5℃, the temperature-sensitive glass ball 78 breaks, and the high-pressure hydrogen is discharged from the hydrogen outlet III79 in the TPRDG. The fragments of the broken temperature-sensitive glass ball 78 are carried out by the high-pressure hydrogen.

[0049] like Figure 2 , Fig.11 , Fig.13As shown, the hydrogen filter I is composed of a hydrogen filter screen 83 and a valve body VI84. The valve body VI84 is in a cylindrical shape. The hydrogen filter screen 83 is fixedly connected to the valve body VI84. A sealing ring n82 is provided on the upper outer ring of the valve body VI84, a sealing ring o85 is provided on the outer ring near the lower part of the valve body VI84, and an external thread V86 is provided on the outer ring of the lower end of the valve body VI84.

[0050] The hydrogen filter I is fixedly connected to the main channel hydrogen inlet 71 of the connector F. The lower end of the hydrogen filter I is provided with a portion of the external thread V86 that exposes the main channel hydrogen inlet 71. The sealing ring n82 and the sealing ring o85 seal the hydrogen filter I and the main channel 6 to prevent hydrogen leakage. The high-pressure hydrogen in the high-pressure hydrogen storage tank onboard the hydrogen energy drone flows into the main channel 6 through the filter net 83 in the hydrogen filter I, which can filter out inclusions in the high-pressure hydrogen, and the filtering accuracy is 10μm.

[0051] like Figure 2 , Fig.11 , Fig.14 As shown, the flow limiting valve H is composed of a pressure plate III 88, a spring IV 89, a valve body VII 90 and a positioning rod 91. The valve body VII 90 is an open cylindrical shape, and its upper inner ring is provided with an internal thread IV 92. The positioning rod 91 is fixed to the bottom surface of the valve body VII 90. The spring IV 89 is sleeved on the positioning rod 91. The upper end of the spring IV 89 is fixed to the pressure plate III 88. The pressure plate III 88 is slidably connected to the positioning rod 91. The flow port 87 is provided in the middle of the inner ring of the valve body VII 90. The flow limiting valve H is threadedly connected by the internal thread IV 92 and the external thread V 86 and is installed at the bottom end of the hydrogen filter I.

[0052] Under normal working conditions, the high-pressure hydrogen flow is normal, and the high-pressure hydrogen in the high-pressure hydrogen storage tank onboard the hydrogen energy UAV enters the valve body Ⅶ90 through the bottom of the flow limiting valve H, and flows into the hydrogen filter I through the flow port 87. At this time, the pressure acting on the pressure plate III 88 is less than or equal to the elastic force of the spring IV 89, and the pressure plate III 88 will not move.

[0053] When encountering an abnormal situation, the high-pressure hydrogen flow is too large, and the pressure acting on the pressure plate III 88 is greater than the elastic force of the spring IV 89. The pressure plate III 88 moves toward the flow port 87 until the pressure plate III 88 and the flow port 87 are completely closed. The whole process gradually reduces the high-pressure hydrogen flow, thereby achieving the purpose of limiting the high-pressure hydrogen flow.

[0054] like Figure 1 , Figure 3-4 , Fig.15 As shown, the check valve J is composed of a top plate II 93, a spring V 94 and a valve body VIII 98. The valve body VIII 98 is cylindrical with a support plate 95 in the middle. The right side of the support plate 95 is connected to the top plate II 93 via the spring V 94. A sealing gasket VI 99 is provided on the right side of the top plate II 93. The left side of the valve body VIII 98 is a flow port 96, and the right side of the valve body VIII 98 is a hydrogen filling port 97.

[0055] The valve body VIII 98 of the check valve J is provided with an external thread on its periphery and is installed at the right end of the right front channel 11 by means of a threaded connection. The left end of the check valve J is connected to the right front channel 11. A sealing ring is provided on the periphery of the valve body VIII 98 to seal the check valve J and the right front channel 11 to prevent hydrogen leakage.

[0056] When there is a demand for hydrogen filling, high-pressure hydrogen flows into the check valve J through the hydrogen filling port 97, and the hydrogen pressure acts on the top plate II 93. When the hydrogen filling pressure is greater than the elastic force of the spring V 94, the top plate II 93 moves to the left, and the hydrogen passes through the flow port 96 to the right front channel 11, and through the right front channel 11 to the hydrogen outlet I 25 of the normally open manual stop valve C, and flows to the main channel 6 through the hydrogen port II 27, and flows to the hydrogen filter I through the main channel 6, and flows to the hydrogen filter I through the hydrogen filter I. The high-pressure hydrogen flows through the limiting valve H to the high-pressure hydrogen storage tank onboard the hydrogen energy UAV; when there is no need to charge hydrogen, the high-pressure hydrogen in the right front channel 11 flows into the flow port 96. At this time, the elastic force of the spring V94 acts on the top plate II93, and the top plate II93 is sealed with the valve body VIII98 by the sealing gasket VI99, thereby blocking the flow of the high-pressure hydrogen. At the same time, the pressure of the high-pressure hydrogen acts on the left end face of the top plate II93, making the top plate II93 and the valve body VIII98 more sealed.

[0057] like Figure 2 , Fig.11 As shown, the air pressure sensor 1 is fixedly connected to the blind hole II 73 of the connector F, and is used to measure the air pressure of hydrogen in the high-pressure hydrogen storage tank onboard the hydrogen energy UAV.

[0058] like Figure 2 , Fig.11 As shown, the temperature sensor 2 is fixed to the blind hole Ⅰ72 of the connector F and is used to measure the temperature inside the high-pressure hydrogen storage tank onboard the hydrogen energy UAV.

[0059] like Fig.16 As shown, the hydrogen energy UAV power system includes an airborne high-pressure hydrogen storage cylinder 102, a high-pressure hydrogen storage cylinder combination control valve 101 with a self-decompression function for the UAV, and a hydrogen fuel cell installed at the hydrogen fuel cell installation position 100. The right port of the right rear channel 5 of the high-pressure hydrogen storage cylinder combination control valve 101 with a self-decompression function for the UAV is communicated with the hydrogen fuel cell. In order to facilitate the hydrogen filling of the airborne high-pressure hydrogen storage cylinder 102, a hydrogen filling port 103 is provided at the rear end of the hydrogen energy UAV, and the hydrogen filling port 103 is connected to the hydrogen filling port 97 through a channel.

[0060] When the hydrogen-powered UAV is operating normally, the high-pressure hydrogen in the onboard high-pressure hydrogen storage cylinder 102 directly inputs the low-pressure hydrogen into the hydrogen fuel cell for direct use through a high-pressure hydrogen storage cylinder combination control valve 101 with a built-in decompression function for the UAV, so that the hydrogen-powered UAV generates electricity to drive the propeller motor to operate normally, thereby achieving the working purpose.

[0061] When the hydrogen-powered UAV needs to be filled with hydrogen, the hydrogen filling equipment is connected to the hydrogen filling port 103, and the high-pressure hydrogen enters the onboard high-pressure hydrogen storage cylinder 102 through a high-pressure hydrogen storage cylinder combination control valve 101 with a built-in decompression function for the UAV. When the hydrogen in the high-pressure hydrogen storage cylinder 102 reaches a suitable pressure, the hydrogen filling is stopped.

Claims

1. A high-pressure hydrogen storage cylinder combined control valve with a self-contained decompression function for unmanned aerial vehicles, characterized in that: The invention comprises a main valve body (A), a normally closed manual stop valve (B), a normally open manual stop valve (C), a solenoid valve (D), a pressure reducing valve (E), a connector (F), a TPRD (G), a flow limiting valve (H), a hydrogen filter (I), a check valve (J), a pressure sensor (1) and a temperature sensor (2), wherein the main valve body (A) is in the shape of a rectangular parallelepiped, and a vertical hole I (3), an internal thread I (3a), a vertical hole II (4), an internal thread II (4a), a right rear channel (5), a main channel (6), a vertical hole III (7), a left rear channel (8), a vertical hole IV (9), an internal thread III (9a), a left front channel (10) and a right front channel (11) are provided on the AA section thereof; the right rear channel (5) is communicated with the right front channel (11), and a plurality of channels are connected to each other. The main channel (6) is communicated with through the vertical hole III (7), the left rear channel (8) is communicated with the main channel (6), and the left front channel (10) is communicated with the main channel (6); the normally closed manual stop valve (B) is communicated with the main channel (6) through the left front channel (10) of the main valve body (A); the hydrogen outlet I (25) of the normally open manual stop valve (C) is communicated with the right rear channel (5) and the right front channel (11) of the main valve body (A), and the hydrogen outlet II (27) is communicated with the main channel (6) of the main valve body (A); the solenoid valve (D) and the pressure reducing valve (E) are communicated with through the right rear channel (5) of the main valve body (A); the normally closed manual stop valve (B) is composed of a nut seat I (12), a connecting rod I (13), a valve body I (14), a pressure plate I (15), and a positioning plate I The valve body Ⅰ (14) is composed of a valve body Ⅰ (20) and a bolt Ⅰ (21), wherein the bolt Ⅰ (21), the positioning plate Ⅰ (20), the nut seat Ⅰ (12), the connecting rod Ⅰ (13) and the valve body Ⅰ (14) are arranged in order from top to bottom; the middle of the bolt Ⅰ (21) is provided with an insertion groove for the positioning plate Ⅰ (20), the positioning plate Ⅰ (20) is placed in the insertion groove and is slidably connected with the bolt Ⅰ (21), and the lower part of the bolt Ⅰ (21) is threadedly connected with the nut seat Ⅰ (12); the upper end of the connecting rod Ⅰ (13) is fixedly connected to the lower side of the nut seat Ⅰ (12), and the middle part of the connecting rod Ⅰ (13) is slidably connected to the center hole of the upper plate of the valve body Ⅰ (14), and the inner part of the center hole is provided with a central hole. The valve body Ⅰ (14) is cylindrical, and a sealing ring a (17) is provided on the upper part of the outer ring of the openings at both ends. The hydrogen inlet Ⅰ (16) is provided on the upper part of the inner part of the valve body Ⅰ (14). The normally open manual stop valve (C) is composed of bolts Ⅱ (22), pressure plate Ⅱ (29), valve body Ⅱ (30), connecting rod Ⅱ (31), nut seat Ⅱ (32) and positioning plate Ⅱ (33). The bolts Ⅱ (22), positioning plate Ⅱ (33), nut seat Ⅱ (32) and positioning plate Ⅱ (33) are connected to the connecting rod Ⅰ (13) at the lower end of the connecting rod Ⅰ (13), and a sealing ring Ⅰ (18) is provided on the lower part of the pressing plate Ⅰ (15). (32), connecting rod II (31) and valve body II (30) are arranged in order from top to bottom. The middle of bolt II (22) is provided with an insertion groove for positioning plate II (33). Positioning plate II (33) is placed in the insertion groove and is slidably connected with bolt II (22). The lower part of bolt II (22) is threadedly connected with nut seat II (32). The upper end of connecting rod II (31) is fixedly connected to the lower part of nut seat II (32). The middle part of connecting rod II (31) is slidably connected to the center hole of the upper plate of valve body II (30). The inner circle of the center hole is provided with a sealing ring c (23). The lower end of connecting rod II (31) is fixedly connected to the upper part of pressure plate II (29). The lower part of pressure plate II (29) is provided with a sealing gasket II (28). Valve body II (30) is cylindrical. The upper part of its outer ring is provided with a sealing ring d (24). The lower part of the outer ring is provided with a sealing ring The solenoid valve (D) is composed of a spring I (34), a push rod I (35), a junction box (36), a spring II (37), a valve bonnet (38), a top plate (39), a valve body III (40), an iron core (46), an electromagnet (47) and a push rod II (48). The junction box (36), the valve bonnet (38) and the valve body III (40) are arranged in sequence from top to bottom and fixedly connected. The middle part of the push rod I (35) is slidably connected to the center hole of the valve bonnet (38). The lower end of the center hole of the valve bonnet (38) is provided with a sealing ring f (45); the lower end of the push rod I (35) is fixedly connected to the top of the top plate (39), and the spring II (37) is sleeved on the top of the valve bonnet (38). The lower part of the push rod I (35) and the upper end of the spring II (37) are limited by the valve cap (38); a sealing gasket c (43) is provided under the top plate (39); an air inlet I (42) is provided on the left side of the lower part of the valve body III (40), and a hydrogen outlet (41) is provided on the lower side of the valve body III (40); the outer ring of the electromagnet (47) is fixedly connected to the inside of the junction box (36); the upper part of the push rod I (35) is fixedly connected to the inner ring of the iron core (46), and the outer ring of the iron core (46) is slidably connected to the inner ring of the electromagnet (47); the push rod II (48) passes through the central hole of the upper plate of the junction box (36) and the spring I (34), and the lower end of the push rod II (48) is fixedly connected to the upper surface of the iron core (46); the pressure reducing valve (E) is composed of a valve core (50), a valve cover (51), a spring (52), a fixing plate ( 53), a piston (54), a valve body IV (55), a pair of supporting rods (65) and a slide plate (69); the valve cover (51) and the valve body IV (55) are arranged up and down and fixedly connected; the bottom of the fixed plate (53) is fixedly connected to the top of the valve body IV (55); the fixed plate (53) is provided with a through hole, and the bottom of the pair of supporting rods (65) passes through the through hole and is fixedly connected to the top of the piston (54); the spring (52) is sleeved on the upper part of the valve core (50), the upper end of the spring (52) is limited by the slide plate (69), the inner ring of the slide plate (69) is slidably connected to the upper part of the valve core (50), the outer ring of the slide plate (69) is slidably connected to the inner ring of the valve cover (51), and the outer ring of the slide plate (69) is provided with a sealing ring d (66); a balancing chamber (68) is provided between the upper surface of the slide plate (69) and the top surface of the valve cover (51);The valve core (50) is provided with a central hole (49), the right side of the central part of the central hole (49) is connected to the air outlet channel (61), a drainage hole (58) is provided near the lower end of the central hole (49), and the drainage hole (58) is connected to the pressure relief chamber (59) at the lower part of the valve body IV (55); the valve core (50) is located in the valve body IV (55) and the valve cover (51), and the outer ring of the valve core (50) is provided with a sealing ring k (67), a sealing ring h (63), and a sealing ring (64) from top to bottom. A sealing ring i (64) is provided near the upper end of the outer ring of the piston (54), and a sealing gasket V (60) is provided at the lower end of the piston (54); an air chamber (57) is provided between the piston (54) and the valve body IV (55), and an air inlet II (56) is provided on the left side of the air chamber (57); the inner ring of the piston (54) is slidably connected to the middle of the valve core (50), and the upper end of the piston (54) is fixedly connected to the fixed plate (53) via a pair of support rods (65); the connection The base body (70) of the connecting body (F) is tubular and provided with a main channel hydrogen inlet (71). The lower end surface of the base body (70) is provided with a blind hole I (72) and a blind hole II (73). The air pressure sensor (1) is fixedly connected to the blind hole II (73) of the connecting body (F). The temperature sensor (2) is fixedly connected to the blind hole I (72) of the connecting body (F). The upper end of the connecting body (F) is connected to the main channel (6) in the main valve body (A), and the lower end is connected to the main channel hydrogen inlet (71). , a hydrogen filter (I), and a flow limiting valve (H); the TPRD (G) is in communication with the left rear channel (8) of the main valve body (A); the check valve (J) is in communication with the right front channel (11) of the main valve body (A); the normally closed manual stop valve (B) is connected to the vertical hole IV (9) of the left front channel (10) of the main valve body (A) by means of threads; the normally open manual stop valve (C) is connected to the vertical hole III (7) of the main channel (6) of the main valve body (A) by means of threads; The solenoid valve (D) is connected to the vertical hole I (3) of the main valve body (A) through a thread; the pressure reducing valve (E) is connected to the vertical hole II (4) of the main valve body (A) through a thread; the upper end of the connecting body (F) is fixedly connected to the lower side of the main valve body (A), and the main channel hydrogen inlet (71) thereof is communicated with the main channel (6) of the main valve body (A); The right part of the TPRD (G) is connected to the left end of the left rear channel (8) of the main valve body (A) through a thread; the upper part of the flow limiting valve (H) is connected to the lower part of the hydrogen filter (I) through a thread, and the hydrogen filter (I) is fixed to the main channel hydrogen inlet (71) of the connector (F); the check valve (J) is fixed to the right end of the left front channel (10) of the main valve body (A).

2. The high-pressure hydrogen storage cylinder combined control valve with self-decompression function for unmanned aerial vehicles according to claim 1 is characterized in that: The TPRD (G) is composed of a valve body V (76) and a temperature-sensitive glass ball (78). The valve body V (76) is cylindrical. The temperature-sensitive glass ball (78) is fixed between a positioning groove (77) at the left part and a supporting groove (80) at the middle part of the valve body V (76). A sealing ring m (75) is provided between the right end of the temperature-sensitive glass ball (78) and the supporting groove (80). The right end of the valve body V (76) is a hydrogen inlet III (81). The outer ring of the right part of the valve body V (76) is provided with a sealing ring l (74). The left part of the valve body V (76) is provided with a hydrogen outlet III (79).

3. The high-pressure hydrogen storage cylinder combined control valve with self-decompression function for unmanned aerial vehicles according to claim 1 is characterized in that: The hydrogen filter (I) is composed of a hydrogen filter (83) and a valve body VI (84). The valve body VI (84) is in a cylindrical shape. The hydrogen filter (83) is fixedly connected to the valve body VI (84). A sealing ring n (82) is provided on the upper outer ring of the valve body VI (84). A sealing ring o (85) is provided on the lower outer ring of the valve body VI (84). An external thread V (86) is provided on the lower outer ring of the valve body VI (84).

4. The high-pressure hydrogen storage cylinder combined control valve with self-decompression function for unmanned aerial vehicles according to claim 1 is characterized in that: The check valve (J) is composed of a top plate II (93), a spring V (94) and a valve body VIII (98). The valve body VIII (98) is cylindrical with a support plate (95) in the middle. The right side of the support plate (95) is connected to the top plate II (93) via the spring V (94). A sealing gasket VI (99) is provided on the right side of the top plate II (93). The left side of the valve body VIII (98) is a flow port (96), the right side of the valve body VIII (98) is a hydrogen filling port (97), and a thread IV (92) is provided on the inner circumference of the upper part of the valve body VIII (98).

5. The high-pressure hydrogen storage cylinder combined control valve with self-decompression function for unmanned aerial vehicles according to claim 1 is characterized in that: The flow limiting valve (H) is composed of a pressure plate III (88), a spring IV (89), a valve body VII (90) and a positioning rod (91). The valve body VII (90) is an open cylindrical body, and an internal thread (92) is provided on the upper inner ring of the valve body VII (90). The positioning rod (91) is fixedly connected to the bottom surface of the valve body VII (90). The spring IV (89) is sleeved on the positioning rod (91). The upper end of the spring IV (89) is fixedly connected to the pressure plate III (88). The pressure plate III (88) is slidably connected to the positioning rod (91). A flow port (87) is provided in the middle of the inner ring of the valve body VII (90).

Images