Air supply components

Abstract

The present invention provides an air supply assembly. The air supply assembly includes a main structure, a gas cylinder and an air circuit control element. The main structure includes a gas cylinder mounting portion, an air circuit mounting portion and an external connection portion. The air circuit mounting portion is arranged at the upper end of the gas cylinder mounting portion, and the external connection portion is arranged at the lower end of the gas cylinder mounting portion. The gas cylinder is mounted on the gas cylinder mounting portion and is located between the gas cylinder mounting portion and the external connection portion. The gas cylinder mounting portion and the external connection portion cooperate to clamp the gas cylinder. The air circuit control element is mounted on the upper side of the gas circuit mounting portion and is connected to the gas cylinder. All the air circuit control elements and the gas cylinder of the air supply assembly are integrated into the main structure, which is convenient for the installation of the air circuit control element, so that the various components of the air supply assembly constitute an independent module, which greatly improves the overall assembly efficiency of the power system, reduces production costs, has a relatively compact structure, saves space, and enhances system reliability and maintainability.

Description

Technical Field

[0001] The present invention relates to the field of rocket technology, in particular to an air supply component. Background Art

[0002] Space orbit and attitude control engines are widely used in rocket upper stages and satellites, and are the key to the success or failure of flight missions. Bipropellant attitude and orbit control power systems are widely used in the aerospace field due to their advantages such as high specific impulse, high precision, multiple starts, and a wide thrust range.

[0003] The gas path system in the space orbit attitude control engine is an important component of the bipropellant engine. However, when the gas path system in the prior art is installed and used, the system has many components and a complicated structural layout, which leads to problems such as cumbersome installation and inconvenient maintenance. Summary of the invention

[0004] The main purpose of the present invention is to provide an air supply assembly to solve the problems of complicated installation and inconvenient maintenance caused by the complicated structure and layout of the air path system in the space orbit attitude control engine in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a gas supply assembly, comprising: a main structure, the main structure comprising: a gas cylinder mounting part; a gas path mounting part, arranged at the upper end of the gas cylinder mounting part; an external connection part, arranged at the lower end of the gas cylinder mounting part; a gas cylinder, mounted on the gas cylinder mounting part and located between the gas cylinder mounting part and the external connection part, the gas cylinder mounting part and the external connection part cooperate to clamp the gas cylinder; a gas path control element, mounted on the upper side of the gas path mounting part and connected to the gas cylinder.

[0006] In one embodiment, the gas cylinder mounting portion is a columnar structure, and the gas cylinder is an annular gas cylinder, which is sleeved on the gas cylinder mounting portion.

[0007] In one embodiment, the main structure further includes a fixing component, which is connected to the gas circuit mounting portion and / or the external connection portion and is used to fix the gas cylinder.

[0008] In one embodiment, the fixing component is a clamp for clamping the annular gas cylinder.

[0009] In one embodiment, the gas path installation portion is a first disc-shaped platform structure, and the gas path control elements are sequentially arranged on the gas path installation portion along the circumferential direction of the first disc-shaped platform structure.

[0010] In one embodiment, the gas circuit control element includes: an inflation valve, which is arranged on the gas circuit mounting portion, the inflation valve is connected to the gas cylinder through the gas cylinder interface, and the inflation valve is used to inflate the gas cylinder; an electric explosion valve, which is arranged on the gas circuit mounting portion and connected to the gas cylinder interface, and the electric explosion valve is used to control the discharge of gas from the gas cylinder; a pressure reducing valve, which is arranged on the gas circuit mounting portion and connected downstream of the electric explosion valve, and the pressure reducing valve reduces the output gas pressure of the gas cylinder to a required pressure; an output valve, which is arranged on the gas circuit mounting portion and connected downstream of the pressure reducing valve; an oxidant gas circuit interface and a fuel gas circuit interface, which are respectively arranged on the gas circuit mounting portion, and the oxidant gas circuit interface and the fuel gas circuit interface are respectively connected to the output valve, the oxidant gas circuit interface is used to connect to the oxidant storage tank, and the fuel gas circuit interface is used to connect to the fuel storage tank.

[0011] In one embodiment, the gas circuit control element further includes: a safety valve, which is arranged on the gas circuit mounting portion and connected to the output valve, and the safety valve is used to control the upper limit of the gas pressure.

[0012] In one embodiment, the air circuit control element also includes: a first pressure sensor, which is arranged on the air circuit mounting part, located near the inflation valve and connected to the inflation valve, and is used to detect the inflation pressure; a second pressure sensor, which is arranged on the air circuit mounting part, located near the output valve and connected to the output valve, and is used to detect the output gas pressure.

[0013] In one embodiment, the gas circuit control element also includes: a first test port, which is arranged on the gas circuit mounting portion and is located between the electric explosion valve and the pressure reducing valve, and the first test port is used to detect the air tightness of the high-pressure pipeline; a second test port, which is arranged on the gas circuit mounting portion, is located near the output valve and is connected to the output valve, and is used to detect the air tightness of the low-pressure pipeline.

[0014] In one embodiment, the external connection portion is a second disc-shaped platform structure, and a plurality of mechanical interfaces are arranged at intervals on the circumferential outer side of the second disc-shaped platform structure, and the mechanical interfaces are used for fixed connection with the power system.

[0015] By applying the technical solution of the present invention, all the gas circuit control components and gas cylinders of the gas supply assembly are integrated into the main structure, which is convenient for the installation of the gas circuit control components, so that the various components of the gas supply assembly constitute an independent module, which greatly improves the efficiency of the power system assembly and reduces the production cost. In addition, the structure is relatively compact, space is saved, and the system reliability and maintainability are enhanced. It can be seen that the technical solution of the present invention solves the problems of complex layout of the gas circuit system of the gas supply assembly, low space utilization, cumbersome installation and inconvenient maintenance.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A schematic diagram showing the overall structure of an embodiment of a gas supply assembly according to the present invention; and

[0019] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the main structure of the air supply component. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] Figure 1 and Figure 2The embodiment of the gas supply assembly of the present invention is shown, and the gas supply assembly includes a main structure 10, a gas cylinder 20 and a gas circuit control element. The main structure 10 includes a gas cylinder mounting portion 11, a gas circuit mounting portion 12 and an external connection portion 13. The gas circuit mounting portion 12 is arranged at the upper end of the gas cylinder mounting portion 11, and the external connection portion 13 is arranged at the lower end of the gas cylinder mounting portion 11. The gas cylinder 20 is mounted on the gas cylinder mounting portion 11 and is located between the gas cylinder mounting portion 11 and the external connection portion 13. The gas cylinder mounting portion 11 and the external connection portion 13 cooperate to clamp the gas cylinder 20. The gas circuit control element is mounted on the upper side of the gas circuit mounting portion 12 and is connected to the gas cylinder 20.

[0025] By applying the technical solution of this embodiment, all the gas circuit control components and gas cylinders of the gas supply assembly are integrated into the main structure 10, which is convenient for the installation of the gas circuit control components, so that the various components of the gas supply assembly constitute an independent module, which greatly improves the efficiency of the power system assembly and reduces the production cost. In addition, the structure is relatively compact, space is saved, and the system reliability and maintainability are enhanced. It can be seen that the technical solution of the present invention solves the problems of complex layout of the gas circuit system of the gas supply assembly, low space utilization, cumbersome installation and inconvenient maintenance.

[0026] As a preferred implementation, in the technical solution of this embodiment, the gas cylinder mounting portion 11 is a columnar structure, and the gas cylinder 20 is an annular gas cylinder, which is sleeved on the gas cylinder mounting portion 11. In this way, with the help of the columnar gas cylinder mounting portion 11, on the one hand, the gas cylinder 20 can be stably fixed, and on the other hand, the gas cylinder 20 can be installed more compactly. Preferably, the main structure 10 also includes a fixing component 40, which is connected to the gas circuit mounting portion 12 and the external connection portion 13, and is used to fix the gas cylinder 20. Figure 1 As shown, in the technical solution of this embodiment, there are two gas cylinders 20, which are stacked and installed on the gas cylinder mounting portion 11, and a fixing component 40 fixes the lower gas cylinder 20 from below, and the fixing component 40 is connected to the external connection portion 13; another fixing component 40 fixes the upper gas cylinder 20 from above, and the fixing component 40 is connected to the gas path mounting portion 12. It should be noted that in the technical solution of this embodiment, there are two gas cylinders 20; as other optional embodiments, there can be more gas cylinders 20, and the number of gas cylinders 20 can be designed according to the needs of use.

[0027] As a preferred embodiment, in the technical solution of this embodiment, the fixing component 40 is a clamp, which is used to clamp the annular gas cylinder. The shape of the clamp is compatible with the annular gas cylinder, and the annular gas cylinder can be fixed more stably. As other optional embodiments, the fixing component 40 can also be a component such as a fastener. This embodiment requires forming a corresponding fixing portion on the gas cylinder to cooperate with the fastener. In the technical solution of this embodiment, there are 4 clamps, which fix the annular gas cylinder from 4 directions respectively, so that the annular gas cylinder can be fixed stably. As other optional embodiments, there can be more clamps.

[0028] like Figure 2 As shown, in the technical solution of the present embodiment, the gas circuit mounting portion 12 is a first disc-shaped platform structure, and the gas circuit control elements are sequentially arranged on the gas circuit mounting portion 12 along the circumferential direction of the first disc-shaped platform structure. The first disc-shaped platform structure cooperates with the gas cylinder mounting portion 11 to fix the annular gas cylinder, and since the first disc-shaped platform structure is adapted to the shape of the annular gas cylinder, the overall appearance of the gas supply assembly can be more uniform and the structure can be more compact. More preferably, the external connection portion 13 is a second disc-shaped platform structure, and a plurality of mechanical interfaces 131 are arranged at intervals on the circumferential outer side of the second disc-shaped platform structure, and the mechanical interface 131 is used to be fixedly connected to the power system. In this way, the effect of the two disc-shaped platform structures clamping the annular gas cylinder in the middle is formed, making the overall structure of the gas supply assembly more compact. The mechanical interface 131 can be a screw or bolt interface.

[0029] Optionally, the gas circuit mounting portion 12 is detachably mounted on the top of the gas cylinder mounting portion 11 by bolts. Before installing the gas cylinder 20, the gas cylinder mounting portion 11 is first removed, and after the gas cylinder 20 is installed, the gas cylinder mounting portion 11 is installed by bolts. As other optional embodiments, the gas cylinder mounting portion 11, the gas circuit mounting portion 12 and the external connection portion 13 can also be fixed by screws or pins, and the material used for the main structure 10 can be aluminum alloy or other materials.

[0030] It should be noted that in the technical solution of this embodiment, the gas cylinder mounting portion 11 adopts a cylindrical structure. As another optional embodiment, a design similar to a cylindrical structure may also be adopted.

[0031] like Figure 1As shown, in the technical solution of this embodiment, the gas circuit control element includes a charging valve 31, an electric explosion valve 32, a pressure reducing valve 33, an output valve 34, an oxidant gas circuit interface 35 and a fuel gas circuit interface 36. During assembly, the charging valve 31, the electric explosion valve 32, the pressure reducing valve 33, the output valve 34, the oxidant gas circuit interface 35 and the fuel gas circuit interface 36 are sequentially arranged on the top of the gas circuit installation part 12 along the circumferential direction of the first disc-shaped platform structure, so that the layout of the gas circuit control element is simpler and more reasonable, which is convenient for the installation and later maintenance of the gas circuit control element.

[0032] During installation, the charging valve 31 is connected to the gas cylinder 20 through the gas cylinder interface 21, and the charging valve 31 is used to inflate the gas cylinder 20. The electric explosion valve 32 is connected to the gas cylinder interface 21, and the electric explosion valve 32 is used to control the discharge of gas from the gas cylinder 20. The pressure reducing valve 33 is connected to the downstream of the electric explosion valve 32, and the pressure reducing valve 33 reduces the pressure of the gas output from the gas cylinder 20 to the required pressure. The output valve 34 is connected to the downstream of the pressure reducing valve 33. The oxidant gas line interface 35 and the fuel gas line interface 36 are respectively connected to the output valve 34, and the oxidant gas line interface 35 is used to connect the oxidant tank, and the fuel gas line interface 36 is used to connect the fuel tank. The output valve 34 receives the gas discharged from the gas cylinder 20 and delivers the gas to the oxidant gas line interface 35 and the fuel gas line interface 36, and then delivers it to the oxidant tank and the fuel tank respectively.

[0033] Optionally, the gas cylinder interface 21 may be a bell-mouth interface or an interface of other shapes. When in use, the gas cylinder interface 21 may be welded to the gas cylinder by welding.

[0034] It should be noted that the gas circuit control components must meet the requirements for fixed installation of various valves and pipelines. They can be installed by bosses or threaded holes, or other installation structures or installation methods can be used. It is best to meet the lightweight design requirements while meeting the strength requirements. Optionally, the above-mentioned various gas circuit control components can be installed on the gas cylinder mounting portion 11 by screws, but are not limited to the above-mentioned mounting structures or installation methods. For example, the electric explosion valve 32 and the pressure reducing valve 160 can be fixed to the gas cylinder mounting portion 11 by clamps, or they can be installed on the gas cylinder mounting portion 11 by other threaded mounting parts.

[0035] like Figure 1As shown, as a more preferred embodiment, the gas circuit control element also includes a safety valve 37, which is arranged on the gas circuit mounting portion 12 and connected to the output valve 34. When in use, the safety valve 37 controls the upper limit of the gas pressure, thereby ensuring the safety of the operation of the gas supply component. More preferably, the gas circuit control element also includes a first pressure sensor 381 and a second pressure sensor 382, ​​the first pressure sensor 381 is arranged on the gas circuit mounting portion 12, is located near the inflation valve 31 and is connected to the inflation valve 31, and is used to detect the inflation pressure; the second pressure sensor 382 is arranged on the gas circuit mounting portion 12, is located near the output valve 34 and is connected to the output valve 34, and is used to detect the output gas pressure. By detecting the pressure of the key points in the gas circuit control element by the first pressure sensor 381 and the second pressure sensor 382, ​​the operating state of the gas circuit control element can be known, and the stability of the operation of the gas supply component can be improved.

[0036] More preferably, the gas circuit control component further includes a first test port 391 and a second test port 392. The first test port 391 is arranged on the gas circuit mounting portion 12, between the electric explosion valve 32 and the pressure reducing valve 33; the second test port 392 is arranged on the gas circuit mounting portion 12, near the output valve 34 and connected to the output valve 34. When in use, the first test port 391 is used to detect the air tightness of the high-pressure pipeline, and the second test port 392 is used to detect the air tightness of the low-pressure pipeline, so as to ensure the air tightness of the entire gas circuit control component and improve the safety of the operation of the gas supply component.

[0037] It should be noted that, in the technical solution of this embodiment, the output valve 34 is a six-way valve, and the components connected to the six-way valve are respectively connected to the interfaces of the six-way valve. Optionally, the charging valve 31 is connected to the first pressure sensor 381 and the cylinder interface 21 through a three-way valve t, the cylinder interface 21 is connected to the charging valve 31 and the electric explosion valve 32 through a three-way valve t, and the first test port 391 is also connected to the electric explosion valve 32 and the pressure reducing valve 33 through a three-way valve t.

[0038] In the technical solution of the present invention, the working process of the gas circuit control element is basically as follows: high-pressure gas is charged into the gas cylinder 20 through the charging valve 31, and the charging is stopped after the theoretical pressure is reached by reading the data of the first pressure sensor 381. After the electric explosion valve 32 is opened, the high-pressure gas passes through the pressure reducing valve 33, and the gas after pressure reduction is divided by the output valve 34, and then enters the corresponding storage tank through the oxidant gas circuit interface 35 and the fuel gas circuit interface 36 respectively.

[0039] From the above description, it can be seen that the above embodiments of the present invention solve the technical problems of complex layout of valve components and pipelines in the gas circuit system, low space utilization, cumbersome installation and inconvenient maintenance.

[0040] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air supply assembly for a space orbit attitude control engine, characterized in that: include: The main structure (10) comprises: Gas cylinder mounting portion (11); A gas circuit mounting portion (12) arranged at the upper end of the gas cylinder mounting portion (11); An external connection portion (13) arranged at the lower end of the gas cylinder mounting portion (11); A gas cylinder (20) is mounted on the gas cylinder mounting portion (11) and is located between the gas cylinder mounting portion (11) and the external connection portion (13), wherein the gas cylinder mounting portion (11) and the external connection portion (13) cooperate to clamp the gas cylinder (20); A gas circuit control element, mounted on the upper side of the gas circuit mounting portion (12) and connected to the gas cylinder (20); a fixing component (40), the fixing component (40) being connected to the gas circuit mounting portion (12) and / or the external connection portion (13) and being used to fix the gas cylinder (20); The gas cylinder mounting portion (11) is a columnar structure, and the gas cylinder (20) is an annular gas cylinder, which is sleeved on the gas cylinder mounting portion (11); The gas path installation portion (12) is a first disc-shaped platform structure, and the gas path control elements are sequentially arranged on the gas path installation portion (12) along the circumferential direction of the first disc-shaped platform structure; The external connection portion (13) is a second disc-shaped platform structure, and a plurality of mechanical interfaces (131) are arranged at intervals on the circumferential outer side of the second disc-shaped platform structure, and the mechanical interfaces (131) are used for fixed connection with the power system; The first disc-shaped platform structure and the second disc-shaped platform structure clamp the annular gas cylinder in the middle.

2. The air supply assembly according to claim 1, characterized in that: The fixing component (40) is a clamp, used to clamp the annular gas cylinder.

3. The air supply assembly according to claim 1, characterized in that: The gas path control element comprises: an air charging valve (31) disposed on the air circuit mounting portion (12), the air charging valve (31) being connected to the gas cylinder (20) via a gas cylinder interface (21), and the air charging valve (31) being used to inflate the gas cylinder (20); an electric explosion valve (32), arranged on the gas path mounting portion (12) and connected to the gas cylinder interface (21), the electric explosion valve (32) being used to control the discharge of gas from the gas cylinder (20); A pressure reducing valve (33) is arranged on the gas path mounting portion (12) and connected downstream of the electric explosion valve (32), wherein the pressure reducing valve (33) reduces the pressure of the gas output from the gas cylinder (20) to a required pressure; an output valve (34) disposed on the gas path mounting portion (12) and connected downstream of the pressure reducing valve (33); The oxidant gas circuit interface (35) and the fuel gas circuit interface (36) are respectively arranged on the gas circuit mounting portion (12), and the oxidant gas circuit interface (35) and the fuel gas circuit interface (36) are respectively connected to the output valve (34), the oxidant gas circuit interface (35) is used to connect to the oxidant storage tank, and the fuel gas circuit interface (36) is used to connect to the fuel storage tank.

4. The air supply assembly according to claim 3, characterized in that: The gas path control element also includes: A safety valve (37) is arranged on the gas path mounting portion (12) and is connected to the output valve (34). The safety valve (37) is used to control the upper limit of the gas pressure.

5. The air supply assembly according to claim 3, characterized in that: The gas path control element also includes: A first pressure sensor (381) is arranged on the gas path mounting portion (12), is located near the inflation valve (31) and is connected to the inflation valve (31), and is used to detect inflation pressure; A second pressure sensor (382) is arranged on the gas path mounting portion (12), is located near the output valve (34) and is connected to the output valve (34), and is used to detect the output gas pressure.

6. The air supply assembly according to claim 3, characterized in that: The gas path control element also includes: A first test port (391) is provided on the gas circuit installation portion (12) and is located between the electric explosion valve (32) and the pressure reducing valve (33), wherein the first test port (391) is used to detect the air tightness of the high-pressure pipeline; A second test port (392) is provided on the gas circuit mounting portion (12), is located near the output valve (34) and is connected to the output valve (34), and is used to detect the air tightness of the low-pressure pipeline.

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