Metal diaphragm storage tank for leap device and manufacturing and assembling method of metal diaphragm storage tank

Abstract

The invention provides a metal diaphragm storage box for a leap device and a manufacturing and assembling method of the metal diaphragm storage box. The metal diaphragm storage box comprises a gas path shell, a liquid path shell, a metal diaphragm, a composite material winding layer and a porous plate. The gas circuit shell is mainly integrally formed by a connecting ring, a gas circuit hemisphere and a gas circuit connecting nozzle and is provided with a perforated plate. The liquid path shell is mainly integrally formed by a shell flange, a liquid path hemisphere and a liquid path mouthpiece; the problems of metal diaphragm fatigue fracture and flange deformation caused by long-term storage and work of the leap device on the lunar surface with huge temperature change are solved, the problem of thin-wall shell force bearing design caused by flange offset design due to narrow space layout of the leap device is solved, and the requirement for light weight of a leap device propelling system is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of spacecraft tanks, and in particular, relates to a metal diaphragm tank for a spacecraft and a manufacturing and assembling method thereof. Background Art

[0002] In the field of space propulsion, the propellant tank is one of the important components of the attitude and orbit control power system. Its main function is to store propellant and provide non-air-entrained propellant for the downstream engine during operation. Metal diaphragms are widely used in various space vehicles due to their advantages such as long storage life, superior resistance to lateral acceleration, strong resistance to liquid sloshing, and light weight.

[0003] Limited by the thrust of the launch vehicle used for lunar exploration, the overall weight of the leapfrog vehicle needs to be designed to be extremely lightweight, and there are more stringent requirements on the tank performance indicators that affect the weight of the leapfrog propulsion subsystem, namely the tank weight and emission efficiency. At the same time, in order to make the spatial layout of the leapfrog propulsion system more compact and efficient, the tank shell flange needs to be adjusted from the connection ring located at the shell equator to the weak liquid circuit shell. The design requirements of the offset flange bring about a harsh stress environment for the shell, which may cause the shell to rupture. In addition, compared with the metal diaphragm tanks used for deep space exploration in the past, the leapfrog tank needs to be stored and operated for a long time on the lunar surface with huge temperature differences. The large temperature difference on the lunar surface will cause the shell flange to deform significantly and then damage the composite tank cabin. Due to the long storage and working time, the metal diaphragm will cause fatigue rupture. The existing metal diaphragm tanks cannot solve the above problems, so there is an urgent need to provide a metal diaphragm tank for a leapfrog vehicle.

[0004] Furthermore, when the metal diaphragm tank works under pressure on the lunar surface, the metal diaphragm will produce repeated fatigue under the combined effect of the pressure in the air cavity and the volume change force of the propellant caused by the alternating temperature on the lunar surface. The existing metal diaphragms have weak fatigue resistance and cannot meet the requirements of long-term storage and work on the lunar surface. When the metal diaphragm tank works on the lunar surface for a long time, it will produce large radial deformation and damage the cabin due to the large changes in ambient temperature. In addition, due to the large wall thickness at the connection ring position, the flange of the traditional metal diaphragm tank is often located near the connection ring at the equator of the shell, and the design requirements of the offset flange bring about a harsh stress environment for the shell.

[0005] In the related prior art: aerospace metal propellant tank and its manufacturing method (patent document CN104648696A), the patent document provides a space metal propellant tank and its manufacturing method, which adopts a full metal diaphragm tank, which is heavy and has poor ability to withstand damage caused by large radial deformation of the tank; and the air path nozzle in its technical solution is straight-through, when the air velocity in the air cavity is high, it may cause instability at the top of the metal diaphragm, greatly affecting safety; in addition, this manufacturing method has many shell welds, which increases manufacturing costs and reduces tank reliability, and the air cavity is inflated when the tank is working, and storage on the lunar surface causes changes in the saturated vapor pressure of the propellant; because in the technical solution disclosed in the patent document, the diaphragm has not undergone special processing technology, the diaphragm will experience repeated movement fatigue under the action of the above-mentioned multiple factors, resulting in rupture, and ultimately affecting the failure of mission completion.

[0006] In view of the technical problems existing in the prior art, the present invention provides a metal diaphragm storage tank for a leaper and a manufacturing and assembling method thereof. Summary of the invention

[0007] In view of the defects in the prior art, the object of the present invention is to provide a metal diaphragm tank for a leaper and a manufacturing and assembling method thereof.

[0008] According to the present invention, a metal diaphragm storage tank for a leaper includes: an air circuit housing 1, a liquid circuit housing 2, a metal diaphragm 3, an air circuit nozzle 6 and a porous plate 10;

[0009] The gas circuit housing 1 is provided with a gas circuit nozzle 6;

[0010] The porous plate 10 is embedded in the gas line nozzle 6;

[0011] The gas circuit housing 1 is disposed on one side of the metal diaphragm 3 , and the liquid circuit housing 2 is disposed on the other side of the metal diaphragm 3 .

[0012] Preferably, the gas circuit housing 1 further comprises: a connecting ring 4, a gas circuit hemisphere 5; an air cavity 13 is formed between the outer periphery of the metal diaphragm 3 and the gas circuit housing 1;

[0013] The liquid circuit housing 2 comprises: a housing flange 7, a liquid circuit hemisphere 8, and a liquid circuit nozzle 9; a liquid cavity 14 is formed between the inner periphery of the metal diaphragm 3 and the liquid circuit housing 2;

[0014] The connecting ring 4, the gas circuit hemisphere 5, and the gas circuit nozzle 6 are integrally formed; the housing flange 7, the liquid circuit hemisphere 8, and the liquid circuit nozzle 9 are integrally formed;

[0015] The gas line nozzle 6 is provided with a cylindrical groove, and the porous plate 10 is embedded in the cylindrical groove in the gas line nozzle 6;

[0016] The gas circuit connection nozzle 6 and the liquid circuit connection nozzle 9 are both plunger-type sealing interfaces, and are both provided with a hexagonal structure for easy clamping.

[0017] Preferably, the wall thickness of the gas circuit housing 1 is 0.7-1.0 mm.

[0018] Preferably, the inner surface of the liquid circuit housing 2 is mainly composed of a column segment, a spherical segment, and an ellipsoidal segment; the radius R2 of the spherical segment is equal to the radius R1 of the metal diaphragm; the major semi-axis a of the ellipsoidal segment is 0.9-1.4R1, and the minor semi-axis b of the ellipsoidal segment is 0.4-0.7R1; the wall thickness of the ellipsoidal segment of the liquid circuit housing 2 is 0.7-1.0mm, and the wall thickness of the housing at other positions is 1.0-1.5mm; the wall thickness of the liquid circuit housing 2 above the housing flange 7 is equal everywhere and is 1.0-1.5mm, and the transition between the housing flange 7 and the ellipsoidal segment is a spherical transition to a tangent straight line, and the wall thickness transitions from 1.0-1.5mm to 0.7-1.0mm.

[0019] Preferably, the inner surface of the metal diaphragm 3 is mainly composed of a cone segment, a transitional spherical segment, and a spherical segment, and different segments are tangentially transitioned and smoothly connected. The wall thickness of the metal diaphragm 3 gradually increases from 1.4 to 2.0 mm, and the material used is pure aluminum.

[0020] Preferably, the metal diaphragm tank for the leaper further comprises: a composite material winding layer 1112;

[0021] The composite material winding layer 1112 includes a shell winding layer 11 and a flange annular reinforcement layer 12;

[0022] The outer sides of the gas circuit housing 1 and the liquid circuit housing 2 are both wrapped with a housing wrapping layer 11;

[0023] The flange annular reinforcement layer 12 is wound around the annular outer side of the shell winding layer 11 .

[0024] Preferably, the shell winding layer 11 and the flange annular reinforcement layer 12 use fibers such as T800 or T1000; the shell winding layer 11 has a winding layer thickness of 1 to 1.5 mm; the flange annular reinforcement layer 12 is annularly wound from 20 to 30 mm away from the upper surface of the shell flange 7 to the upper surface of the shell flange 7, and the winding thickness is 4 to 6 mm.

[0025] Preferably, the porous plate 10 is provided with holes of different diameters, including a large hole in the middle and small holes evenly distributed around, and the total area of ​​the openings is not less than the channel flow area of ​​the gas path nozzle 6; the cross-section of the porous plate 10 is rectangular; the shape of the openings can be circular or elliptical.

[0026] Preferably, the present invention provides a method for manufacturing and assembling a metal diaphragm tank for a leaper according to the present invention, comprising:

[0027] Step S1: using a housing mold to form a spherical forging by die forging, and then forming a gas circuit housing 1 and a liquid circuit housing 2 by machining;

[0028] Step S2: The metal diaphragm 3 is roughly processed and formed by a forming die and a flanging die respectively by stamping and flanging the plate, and the metal diaphragm 3 is machined according to the wall thickness requirement, and the metal diaphragm 3 is heat treated;

[0029] Step S3: using the rod material to form the porous plate 10 by machining;

[0030] Step S4: The porous plate 10 is fixed in the cylindrical groove of the gas path nozzle 6 by punching, with 6 to 12 punching points, which are evenly arranged and kept tight;

[0031] Step S5: welding the flange of the metal diaphragm 3 to the connecting ring 4 on the gas circuit housing 1 after the porous plate 10 is installed;

[0032] Step S6: welding the liquid circuit housing 2 and the gas circuit housing 1 to form an inner liner housing;

[0033] Step S7: Wrap the liner shell with the shell winding layer 11 according to the winding procedure, and then circumferentially wind the flange circumferential reinforcement layer 12 around the shell flange 7.

[0034] Preferably, in the manufacturing and assembly method of the metal diaphragm tank for the leaper, in step S2, the heat treatment temperature of the metal diaphragm 3 after forming is 420-430°C, and the heat treatment time is 4-6 hours; the cylindrical groove after stamping deformation ensures that the porous plate 10 does not fall off;

[0035] The gas circuit housing 1, the liquid circuit housing 2, and the porous plate 10 are made of aluminum alloy.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The present invention improves the fatigue resistance of the metal diaphragm by improving the heat treatment parameters of the metal diaphragm, so that the metal diaphragm tank can be stored on the lunar surface for more than 30 days, alleviating the fatigue problem of the metal diaphragm in the prior art; in particular, the air cavity is inflated when the tank is working, and the storage on the lunar surface causes the saturated vapor pressure of the propellant to change. Under the action of the two, the diaphragm will experience repeated movement fatigue. The present invention sets a specific range of heat treatment temperature and time for the diaphragm to improve the fatigue resistance of the diaphragm, which can meet the long-term storage requirements on the lunar surface.

[0038] 2. The present invention adds a flange annular reinforcement layer of a certain thickness within a certain range on the upper surface of the flange so that the single-side radial deformation of the tank does not exceed 0.2% of the flange radius when the tank is stored on the lunar surface, thereby avoiding large radial deformation of the metal diaphragm tank that damages the cabin due to large changes in ambient temperature when the metal diaphragm tank works on the lunar surface for a long time.

[0039] 3. The present invention sets an offset flange located at the weak liquid circuit shell, and compensates for the harsh stress environment of the shell caused by the design requirements of the offset flange by performing transitional reinforcement design on the liquid circuit shell near the flange, thereby optimizing the spatial layout of the entire leaper.

[0040] 4. The present invention improves the inner surface shape and design parameters of the liquid circuit shell to make the discharge efficiency of the spherical metal diaphragm exceed 99%, thereby improving the discharge efficiency of the metal diaphragm tank and reducing the weight of the entire leaper.

[0041] 5. The present invention uses aluminum alloy forgings to be die-forged into spherical forgings, which are then machined to form gas and liquid path shells and then welded, so that there is only one spherical shell weld, thereby improving the reliability of the use of the metal diaphragm storage tank.

[0042] 6. The present invention solves the problem of instability of the top of the diaphragm that may be caused by rapid inflation through a straight-through nozzle by arranging a porous plate at the air path nozzle.

[0043] 7. The overall structure of the present invention solves the problems of fatigue rupture of the metal diaphragm and flange deformation caused by the long-term storage and operation of the leapfrog on the lunar surface with huge temperature changes, and the load-bearing design problem of the thin-walled shell caused by the flange offset design due to the narrow space layout of the leapfrog, and meets the lightweight requirements of the leapfrog propulsion system. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0045] Figure 1 The present invention provides a schematic structural diagram of a metal diaphragm storage tank for a leaper.

[0046] Figure 2 The metal diaphragm storage tank structure provided by the present invention Figure 1 A local enlarged view of point P in the middle.

[0047] Figure 3 This is a schematic diagram of the flange provided by the present invention.

[0048] Figure 4 This is a schematic diagram of the porous plate structure provided by the present invention.

[0049] DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0051] like Figure 1 As shown, an embodiment of the present invention provides a metal diaphragm storage tank for a leaper, comprising: an air circuit housing 1, a liquid circuit housing 2, a metal diaphragm 3, an air circuit nozzle 6 and a porous plate 10; the air circuit housing 1 is provided with an air circuit nozzle 6; the porous plate 10 is embedded in the air circuit nozzle 6; the air circuit housing 1 is arranged on one side of the metal diaphragm 3, and the liquid circuit housing 2 is arranged on the other side of the metal diaphragm 3.

[0052] The gas circuit housing 1 includes: a connecting ring 4, a gas circuit hemisphere 5; an air cavity 13 is formed between the outer periphery of the metal diaphragm 3 and the gas circuit housing 1; the liquid circuit housing 2 includes: a housing flange 7, a liquid circuit hemisphere 8, and a liquid circuit nozzle 9; a liquid cavity 14 is formed between the inner periphery of the metal diaphragm 3 and the liquid circuit housing 2; the connecting ring 4, the gas circuit hemisphere 5, and the gas circuit nozzle 6 are integrally formed; the housing flange 7, the liquid circuit hemisphere 8, and the liquid circuit nozzle 9 are integrally formed without welds between each other, with high reliability and low production cost; a cylindrical groove is provided in the gas circuit nozzle 6, and the porous plate 10 is embedded in the cylindrical groove in the gas circuit nozzle 6.

[0053] Furthermore, the wall thickness of the gas circuit housing 1 is 0.7-1.0 mm; the inner profile of the liquid circuit housing 2 is mainly composed of a column segment, a spherical segment, and an ellipsoidal segment; the radius R2 of the spherical segment is equal to the radius R1 of the metal diaphragm; the long semi-axis a of the ellipsoidal segment is 0.9-1.4R1, and the short semi-axis b of the ellipsoidal segment is 0.4-0.7R1; this structural matching value can significantly improve the metal diaphragm discharge efficiency to more than 99%. The wall thickness of the ellipsoidal segment of the liquid circuit housing 2 is 0.7-1.0 mm, and the wall thickness of the housing at other positions is 1.0-1.5 mm; the wall thickness of the liquid circuit housing 2 above the housing flange 7 is equal and 1.0-1.5 mm, and the transition from the housing flange 7 to the ellipsoidal segment is a transition from a spherical shape to a tangent straight line, and the wall thickness transitions from 1.0-1.5 mm to 0.7-1.0 mm. The above-mentioned technical features can ensure that the shell is reinforced without affecting the fiber winding, and prevent the occurrence of fiber overhead phenomenon; the shell flange 7 is set at a lower position, which has a better spatial layout for the leaper system. The technical solution of the shell reinforcement of the present invention can ensure the mechanical strength of the shell flange 7 in the mechanical environment where the shell flange 7 is located, and prevent the load-bearing capacity from being weakened due to the thin wall thickness.

[0054] Furthermore, the inner surface of the metal diaphragm 3 is mainly composed of a cone segment, a transitional spherical segment, and a spherical segment, and different segments are tangentially transitioned and smoothly connected. The wall thickness of the metal diaphragm 3 gradually increases from 1.4 to 2.0 mm, and the material used is pure aluminum.

[0055] The metal diaphragm tank for a leapfrog device also includes: a composite material winding layer 1112; the composite material winding layer 1112 includes a shell winding layer 11 and a flange annular reinforcement layer 12; the shell winding layer 11 is wound around the outer sides of the gas circuit shell 1 and the liquid circuit shell 2; the flange annular reinforcement layer 12 is wound around the annular outer side of the shell winding layer 11; further, the fiber used in the shell winding layer 11 and the flange annular reinforcement layer 12 is T800 or T1000; the thickness of the shell winding layer 11 is 1 to 1.5 mm; the flange annular reinforcement layer 12 solves the technical problem that the tank cabin of the prior art uses composite materials and therefore cannot withstand the damage caused by large radial deformation of the tank, and under the same working pressure and bursting pressure indicators, the tank weight of the embodiment of the present invention is lighter overall.

[0056] Furthermore, the porous plate 10 is provided with holes of different apertures, including a large hole in the middle and small holes evenly distributed around, and the total area of ​​the openings is not less than the channel flow area of ​​the gas circuit nozzle 6; the cross-section of the porous plate 10 is rectangular; the shape of the openings can be circular or elliptical; the gas circuit nozzle 6 and the liquid circuit nozzle 9 are both plunger-type sealing interfaces, and are both provided with a hexagonal structure for convenient clamping; the hexagonal structure of the gas circuit nozzle 6 is designed with multiple threads for welding, clamping and fixing, and the number of threads can be 6 to 8; the flange annular reinforcement layer 12 is annularly wound from 20 to 30 mm away from the upper surface of the shell flange 7 to the upper surface of the shell flange 7, and the winding thickness is 4 to 6 mm. The setting of the porous plate 10 can improve the situation where the top of the metal diaphragm becomes unstable when the gas velocity in the air cavity is high.

[0057] The present invention will be described in more detail below.

[0058] like Figure 3 As shown, the flange corners are rounded to prevent the composite fiber from being cut and damaged when it is wound around the flange; the gas circuit housing 1, the liquid circuit housing 2, and the porous plate 10 are made of aluminum alloy;

[0059] The present invention also provides a method for manufacturing and assembling a metal diaphragm tank for a leaper, comprising:

[0060] Step S1: using a housing mold to form a spherical forging by die forging, and then forming a gas circuit housing 1 and a liquid circuit housing 2 by machining;

[0061] Step S2: The metal diaphragm 3 is roughly processed and formed by a forming die and a flanging die respectively by stamping and flanging the plate, and the metal diaphragm 3 is machined according to the wall thickness requirement, and the metal diaphragm 3 is heat treated;

[0062] Step S3: using the rod material to form the porous plate 10 by machining;

[0063] Step S4: The porous plate 10 is fixed in the cylindrical groove of the gas path nozzle 6 by punching, with 6 to 12 punching points evenly distributed, and can be kept tight at this time;

[0064] Step S5: welding the flange of the metal diaphragm 3 to the connecting ring 4 on the gas circuit housing 1 after the porous plate 10 is installed;

[0065] Step S6: welding the liquid circuit housing 2 and the gas circuit housing 1 to form an inner liner housing;

[0066] Step S7: Wrap the liner shell with the shell winding layer 11 according to the winding procedure, and then circumferentially wrap the flange circumferential reinforcement layer 12 around the shell flange 7 to form the metal diaphragm tank for the leaper.

[0067] Furthermore, in step S2, the heat treatment temperature of the metal diaphragm 3 after forming is 420-430°C, and the heat treatment time is 4-6 hours; the cylindrical groove after stamping deformation ensures that the porous plate 10 does not fall off;

[0068] In summary, the present invention provides a metal diaphragm tank for a leaper and a manufacturing and assembly method thereof, comprising: an air circuit housing 1, a liquid circuit housing 2, a metal diaphragm 3, a composite material winding layer 1112 and a porous plate 10. The air circuit housing 1 includes a connecting ring 4, an air circuit hemisphere 5, and an air circuit nozzle 6, which are integrally formed and installed with a porous plate 10; the liquid circuit housing 2 includes a housing flange 7, a liquid circuit hemisphere 8, and a liquid circuit nozzle 6, which are integrally formed; the overall solution solves the problem of fatigue rupture of the metal diaphragm and flange deformation caused by the long-term storage and operation of the leaper on the lunar surface with huge temperature changes, and the problem of thin-walled shell bearing design caused by the flange offset design due to the narrow space layout of the leaper, and meets the lightweight requirements of the leaper propulsion system.

[0069] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A metal diaphragm tank for a leaper, characterized in that: include: An air circuit housing (1), a liquid circuit housing (2), a metal diaphragm (3), an air circuit nozzle (6) and a porous plate (10); The gas circuit housing (1) is provided with a gas circuit nozzle (6); The porous plate (10) is embedded in the gas line nozzle (6); The gas circuit housing (1) is arranged on one side of the metal diaphragm (3), and the liquid circuit housing (2) is arranged on the other side of the metal diaphragm (3).

2. The metal diaphragm tank for a leaper according to claim 1, characterized in that: The gas circuit housing (1) further comprises: a connecting ring (4) and a gas circuit hemisphere (5); an air cavity (13) is formed between the outer periphery of the metal diaphragm (3) and the gas circuit housing (1); The liquid circuit housing (2) comprises: a housing flange (7), a liquid circuit hemisphere (8), and a liquid circuit nozzle (9); a liquid cavity (14) is formed between the inner periphery of the metal diaphragm (3) and the liquid circuit housing (2); The connecting ring (4), the gas circuit hemisphere (5), and the gas circuit nozzle (6) are integrally formed; the housing flange (7), the liquid circuit hemisphere (8), and the liquid circuit nozzle (9) are integrally formed; The gas path nozzle (6) is provided with a cylindrical groove, and the porous plate (10) is embedded in the cylindrical groove in the gas path nozzle (6); The gas circuit connection nozzle (6) and the liquid circuit connection nozzle (9) are both plunger-type sealing interfaces, and are both provided with a hexagonal structure for easy clamping.

3. The metal diaphragm tank for a leaper according to claim 1 or claim 2, characterized in that: The wall thickness of the gas circuit housing (1) is 0.7-1.0 mm.

4. The metal diaphragm tank for a leaper according to claim 2, characterized in that: The inner profile of the liquid circuit housing (2) is mainly composed of a column segment, a spherical segment, and an ellipsoidal segment; the radius R2 of the spherical segment is equal to the radius R1 of the metal diaphragm; the major semi-axis a of the ellipsoidal segment is 0.9-1.4R1, and the minor semi-axis b of the ellipsoidal segment is 0.4-0.7R1; the wall thickness of the ellipsoidal segment of the liquid circuit housing (2) is 0.7-1.0 mm, and the wall thickness of the housing at other positions is 1.0-1.5 mm; the wall thickness of the liquid circuit housing (2) above the housing flange (7) is equal everywhere and is 1.0-1.5 mm, and the portion between the housing flange (7) and the ellipsoidal segment is a transitional spherical shape extending to a tangent straight line thereof, and the wall thickness transitions from 1.0-1.5 mm to 0.7-1.0 mm.

5. The metal diaphragm tank for a leaper according to claim 4, characterized in that: The inner profile of the metal diaphragm (3) is mainly composed of a cone segment, a transitional spherical segment, and a spherical segment. Different segments are tangentially transitioned and smoothly connected. The wall thickness of the metal diaphragm (3) gradually increases from 1.4 to 2.0 mm, and the material used is pure aluminum.

6. The metal diaphragm tank for a leaper according to claim 1, characterized in that: Also includes: A composite material winding layer (1112); The composite material winding layer (1112) comprises a shell winding layer (11) and a flange annular reinforcement layer (12); The outer sides of the gas circuit housing (1) and the liquid circuit housing (2) are both wound with a housing winding layer (11); The flange annular reinforcement layer (12) is wound around the annular outer side of the shell winding layer (11).

7. The metal diaphragm tank for a leaper according to claim 6, characterized in that: The fiber used in the shell winding layer (11) and the flange annular reinforcement layer (12) is T800 or T1000; the shell winding layer (11) has a winding layer thickness of 1 to 1.5 mm; the flange annular reinforcement layer (12) is annularly wound between 20 to 30 mm from the upper surface of the shell flange (7) and the upper surface of the shell flange (7), and the winding thickness is 4 to 6 mm.

8. The metal diaphragm tank for a leaper according to claim 1, characterized in that: The porous plate (10) is provided with holes of different diameters, including a large hole in the middle and small holes evenly distributed around the periphery, and the total area of ​​the holes is not less than the channel flow area of ​​the gas path nozzle (6); the cross-section of the porous plate (10) is rectangular; the shape of the holes can be circular or elliptical.

9. A method for manufacturing and assembling a metal diaphragm tank for a leaper according to any one of claims 1 to 8, comprising: Step S1: using a housing mold to form a spherical forging by die forging, and then forming a gas circuit housing (1) and a liquid circuit housing (2) by machining; Step S2: The metal diaphragm (3) is roughly processed and formed by using a forming die and a flanging die respectively by stamping and flanging the plate, the metal diaphragm (3) is machined according to the wall thickness requirement, and the metal diaphragm (3) is heat treated; Step S3: using the rod material to form a porous plate (10) by machining; Step S4: The porous plate (10) is fixed in the cylindrical groove of the gas path nozzle (6) by punching, with 6 to 12 punching points, which are evenly arranged and kept tight; Step S5: welding the flange of the metal diaphragm (3) to the connecting ring (4) on the gas path housing (1) after the porous plate (10) is installed; Step S6: welding the liquid circuit housing (2) and the gas circuit housing (1) to form an inner lining housing; Step S7: Wrap the liner shell with the shell winding layer (11) according to the winding procedure, and then circumferentially wind the flange circumferential reinforcement layer (12) around the shell flange (7).

10. The manufacturing and assembling method of the metal diaphragm tank for the leaper according to claim 9, characterized in that: In step S2, the metal diaphragm 3 is heat treated at a temperature of 420-430° C. after forming, and the heat treatment time is 4-6 hours; the cylindrical groove after stamping and deformation ensures that the porous plate (10) does not fall off; The raw materials for processing the gas circuit housing (1), the liquid circuit housing (2) and the porous plate (10) are aluminum alloy.

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