A sliding valve for a rocket pipeline and a device for cooling the same

Abstract

The application relates to a sliding valve for a rocket pipeline and a device cooling device thereof, which comprises a valve body, a push rod and a positioning structure, the valve body is internally provided with a guide channel and a pipeline channel, one end of the guide channel is an inlet, the pipeline channel is located on one side of the guide channel and is communicated with the guide channel, a guide nozzle is arranged on one side of the valve body and is communicated with the guide channel through the pipeline channel; one end of the push rod extends into the guide channel and is slidably connected with the valve body, the push rod has a first position and a second position, when the push rod is in the first position, the pipeline channel is communicated with the guide channel, when the push rod is in the second position, the pipeline channel is separated from the guide channel, the positioning structure is arranged on the valve body and is detachably connected with one end of the push rod, when the positioning structure is connected with the push rod, the push rod is in the second position. In the application, the positioning structure, the push rod and the separating body are matched, the push rod loses the compression constraint of the separating body and slides to the first position, so that the gas or liquid flows to the next pipeline.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a sliding valve for rocket pipelines and a cooling device for the same. Background Technology

[0002] With the rapid development of the aerospace industry, various technologies involved in the rocket field have also made leaps and bounds. Valves are important components for enabling the conduction of gas-liquid pipelines on liquid rockets.

[0003] After rocket stage separation, the internal temperature of the cabin changes, and some individual pieces of equipment are highly sensitive to the ambient temperature. To ensure the temperature of these individual pieces of equipment, gases at a specific temperature are typically used to cool or heat the affected area. Currently, most spacecraft use electromagnetic valves controlled by electromagnetic force or electrically detonated valves with explosive detonation devices to achieve valve passage, both of which require electrical signals, making system control quite complex. Summary of the Invention

[0004] This application provides a sliding valve for rocket pipelines and a cooling device for the same, to solve the problem that valves in related technologies require electrical signals and the system control is relatively complex.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, a sliding valve for rocket pipelines is provided, comprising: a valve body, a push rod, and a positioning structure. The valve body has a guiding channel and a pipeline channel inside. One end of the guiding channel is an inlet. The pipeline channel is located on one side of the guiding channel and communicates with it. A guiding nozzle is provided on one side of the valve body, and the guiding nozzle communicates with the guiding channel through the pipeline channel. One end of the push rod extends into the guiding channel and is slidably connected to the valve body. The push rod has a first position and a second position. When the push rod is in the first position, the pipeline channel communicates with the guiding channel. When the push rod is in the second position, the pipeline channel is isolated from the guiding channel. The positioning structure is disposed on the valve body, and one end is detachably connected to the push rod. When the positioning structure is connected to the push rod, the push rod is in the second position.

[0006] In some embodiments, the push rod is provided with a positioning and mating structure, and when the positioning structure is connected to the positioning and mating structure, the push rod is in a second position.

[0007] In some embodiments, the valve body has a through groove, the positioning structure is a stop pin, and the positioning mating structure is a positioning groove; one end of the stop pin passes through the through groove and is inserted into the positioning groove.

[0008] In some embodiments, a limiting structure is provided inside the conduction channel. The limiting structure is used to prevent the push rod from moving axially toward the bottom of the valve body. A limiting engagement structure is provided on the surface of the push rod. When the limiting structure is connected to the limiting engagement structure, the push rod is in the first position.

[0009] In some embodiments, the limiting structure is a first step protruding from the inner wall of the conduction channel; the limiting mating structure is a second step that is recessed on the surface of the push rod and matches the first step.

[0010] In some embodiments, the other end of the push rod is threaded with a top cap.

[0011] In some embodiments, a sealing ring is fixedly connected to the surface of the push rod and / or the inner wall of the conduction channel.

[0012] In some embodiments, a sealing ring is fixedly connected between the guide nozzle and the valve body surface.

[0013] Secondly, a device for cooling equipment is provided, comprising: a sliding valve for rocket pipelines as described above, a body to be separated, and a separating body, wherein the body to be separated is connected to the valve body at the end away from the inlet, and the other end of the push rod passes through the body to be separated and is slidably connected to the body to be separated; the separating body abuts against the other end of the push rod.

[0014] In some embodiments, a flange is fixedly connected to the end of the valve body away from the inlet, and the separated body is connected to the flange by fasteners.

[0015] The beneficial effects of the technical solution provided in this application include:

[0016] This application provides a sliding valve for rocket pipelines and its equipment cooling device, which is equipped with a positioning structure, a push rod, and a separating body to achieve pipeline conduction. The structure is simple: before the separating body and the separated body are installed together, the positioning structure is connected to the push rod to ensure that the pipeline channel and the conduction channel are isolated. After the separating body and the separated body are installed together, the positioning structure is separated from the push rod, and the separating body presses the push rod to ensure that the pipeline channel and the conduction channel are isolated. The timing of pipeline conduction is related to the timing of separation of the separating body and the separated body: when the separating body is not separated, the push rod is held in the second position, and the pipeline channel and the conduction channel are isolated. When the separating body and the separated body are separated, the push rod loses the pressure constraint of the separating body, and the high-pressure gas or liquid pushes the push rod to slide to the first position inside the conduction channel, so that the conduction nozzle is unblocked and the gas or liquid can flow to the next level pipeline. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of the overall structure provided for an embodiment of this application;

[0019] Figure 2 A cross-sectional view of the overall structure provided in the embodiments of this application;

[0020] Figure 3 A top view of the overall structure provided for an embodiment of this application;

[0021] Figure 4 A schematic diagram showing the initial push rod being pressed down (the stop pin has been removed) as provided in the embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the gas path conduction state after the separator is separated, as provided in the embodiments of this application.

[0023] In the diagram: 1. Valve body; 10. Conductor channel; 11. Limiting structure; 12. Inlet; 13. Conductor nozzle; 14. Pipeline channel; 2. Push rod; 20. Limiting fit structure; 21. Positioning fit structure; 3. Top cap; 4. Sealing ring; 5. Positioning structure; 50. Stop pin; 6. Separator; 7. Separated body; 8. Fastener. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] See Figures 1 to 5 This application provides a sliding valve for rocket pipelines and a cooling device for the same, which can solve the problem in related technologies that valves require electrical signals and the system control is relatively complex.

[0026] In a first aspect, embodiments of this application provide a sliding valve for rocket pipelines, comprising: a valve body 1, a push rod 2, and a positioning structure 5. The valve body 1 has a conduction channel 10 and a pipeline channel 14 inside. One end of the conduction channel 10 is an inlet 12. The pipeline channel 14 is located on one side of the conduction channel 10 and communicates with the conduction channel 10. A conduction nozzle 13 is provided on one side of the valve body 1, and the conduction nozzle 13 communicates with the conduction channel 10 through the pipeline channel 14. One end of the push rod 2 extends into the conduction channel 10 and is slidably connected to the valve body 1. The push rod 2 has a first position and a second position. When the push rod 2 is in the first position, the pipeline channel 14 is connected to the conduction channel 10. When the push rod 2 is in the second position, the pipeline channel 14 is isolated from the conduction channel 10. The positioning structure 5 is disposed on the valve body 1, and one end is detachably connected to the push rod 2. When the positioning structure 5 is connected to the push rod 2, the push rod 2 is in the second position.

[0027] In this application, a positioning structure 5, a push rod 2, and a separating body 6 are used to achieve pipeline connection. The structure is simple: before the separating body 6 and the separated body 7 are installed together, the positioning structure 5 is connected to the push rod 2 to ensure that the pipeline channel 14 is isolated from the connection channel 10. After the separating body 6 and the separated body 7 are installed together, the positioning structure 5 is separated from the push rod 2. The separating body 6 presses the push rod 2 to ensure that the pipeline channel 14 is isolated from the connection channel 10. The timing of the connection of the pipeline channel 14 is related to the timing of the separation of the separating body 6 and the separated body 7: when the separating parts are not separated, the push rod 2 is held in the second position, and the pipeline channel 14 is isolated from the connection channel 10. When the separating body 6 and the separated body 7 are separated, the push rod 2 loses the pressing constraint of the separating body 6. High-pressure gas or liquid pushes the push rod 2 to slide to the first position inside the connection channel 10, so that the connection nozzle 13 is unblocked, and the gas or liquid flows to the next level pipeline.

[0028] Using the top of the pipeline channel 14 as the dividing line: along the direction of gas or liquid flow, when the top of the push rod 2 is upstream of the top of the pipeline channel 14, the push rod 2 is in the second position; when the top of the push rod 2 is downstream of the top of the pipeline channel 14, the push rod 2 is in the first position.

[0029] The guide nozzle 13 is connected to the valve body 1 by fasteners 8. A sealing ring 4 is fixedly connected between the guide nozzle 13 and the surface of the valve body 1, that is, the sealing ring 4 is designed for sealing on the contact surface. A sealing ring 4 is fixedly connected to the surface of the push rod 2 and / or the inner wall of the guide channel 10 to prevent gas or liquid from flowing out of the guide channel 10 through the gap between the push rod 2 and the inner wall of the guide channel 10.

[0030] Based on the above embodiments, in this embodiment, the push rod 2 is provided with a positioning and mating structure 21. When the positioning structure 5 is connected to the positioning and mating structure 21, the push rod 2 is in the second position. Furthermore, a through groove is provided on the valve body 1, the positioning structure 5 is a stop pin 50, and the positioning and mating structure 21 is a positioning groove; one end of the stop pin 50 passes through the through groove and is inserted into the positioning groove.

[0031] In this embodiment, when the push rod 2 is inserted into the conductive channel 10, the positioning groove aligns with the through groove. Based on this, a guide rail is formed on the inner wall of the conductive channel 10 along its axial direction, and a limiting rod is protruded from the surface of the push rod 2. When the push rod 2 is inserted into the conductive channel 10, the limiting rod is positioned inside the guide rail. At this time, the positioning groove aligns with the through groove, and the limiting rod, in conjunction with the guide rail, restricts the push rod 2 to move only along the axial direction of the conductive channel 10, preventing misalignment between the positioning groove and the through groove.

[0032] One end of the limit valve body 1 has a through groove that connects to the guide channel 10. After the stop pin 50 passes through the through groove, one end is inserted into the positioning groove, which limits the push rod 2. At this time, the push rod 2 is in the second position, ensuring that the guide nozzle 13 is blocked by the push rod 2. After the separator 6 and the separated body 7 are connected and installed in place, the stop pin 50 is removed, and the push rod 2 is pressed against the separation surface of the separator 6 to ensure that the pipeline channel 14 is blocked by the push rod 2.

[0033] Since the distance between the separating body 6 and the separated body 7 is a fixed value, a top cap 3 is threaded to the other end of the push rod 2. During the docking and installation of the separating body 6 and the separated body 7, the initial position and conduction stroke of the push rod 2 are ensured by the depth of the threaded part of the top cap 3: the deeper the top cap 3 is screwed in, the closer the top of the push rod 2 is to the inlet 12 and the longer the conduction stroke.

[0034] Furthermore, the top cap 3 includes a threaded portion and a top cap body. The threaded portion is threadedly connected to the push rod 2. The diameter of the top cap body is larger than the diameter of the push rod 2 to increase the contact area between the push rod 2 and the separating body 6, and also to reduce the mass of the push rod 2. The top cap 3 can be used to eliminate errors caused by the cumulative installation of the push rod 2, ensuring the initial position and conduction stroke of the push rod 2.

[0035] Based on the above embodiments, in this embodiment, a limiting structure 11 is provided inside the conduction channel 10. The limiting structure 11 is used to prevent the push rod 2 from moving axially toward the bottom of the valve body 1. A limiting fit structure 20 is provided on the surface of the push rod 2. When the limiting structure 11 is connected to the limiting fit structure 20, the push rod 2 is in the first position.

[0036] In this embodiment, to prevent the push rod 2 from sliding out of the conduction channel 10 after moving axially towards the bottom of the valve body 1, a limiting structure 11 is provided inside the conduction channel 10 to cooperate with the limiting fitting structure 20 provided on the push rod 2 to limit the push rod 2. Along the gas or liquid flow direction, the limiting structure 11 is located downstream of the pipeline channel 14, and when the limiting structure 11 is connected with the limiting fitting structure 20, the top of the push rod 2 is located downstream of the top of the pipeline channel 14.

[0037] Furthermore, the limiting structure 11 and the limiting mating structure 20 can be configured in multiple ways:

[0038] In some possible embodiments, the limiting structure 11 is a first step protruding from the inner wall of the conduction channel 10; the limiting mating structure 20 is a second step recessed on the surface of the push rod 2 that matches the first step. When the first step and the second step are in contact, the push rod 2 cannot continue to move axially toward the bottom of the valve body 1.

[0039] In some other possible embodiments, the limiting structure 11 is a rubber protrusion provided on the inner wall of the conduction channel 10, and the limiting fitting structure 20 is a groove opened on the surface of the push rod 2. When the push rod 2 moves until the rubber protrusion is stuck in the groove, the push rod 2 can no longer move along the axial direction of the valve body 1 toward the bottom of the valve body 1.

[0040] The above embodiments are merely various possible implementations of the embodiments of this application, and the embodiments of this application are not limited thereto.

[0041] Secondly, the present application provides a device for cooling equipment, which includes: a sliding valve for rocket pipelines provided in any of the above embodiments of the present application, a body to be separated 7 and a separator 6, the body to be separated 7 being connected to the end of the valve body 1 away from the inlet 12, the other end of the push rod 2 passing through the body to be separated 7 and being slidably connected to the body to be separated 7; the separator 6 abutting against the other end of the push rod 2.

[0042] A flange is fixedly connected to the end of the valve body 1 away from the inlet 12, and the separated body 7 is connected to the flange by fasteners 8.

[0043] In this application, a positioning structure 5, a push rod 2, and a separating body 6 are used to achieve pipeline connection. The structure is simple: before the separating body 6 and the separated body 7 are installed together, the positioning structure 5 is connected to the push rod 2 to ensure that the pipeline channel 14 is isolated from the connection channel 10. After the separating body 6 and the separated body 7 are installed together, the positioning structure 5 is separated from the push rod 2. The separating body 6 presses the push rod 2 to ensure that the pipeline channel 14 is isolated from the connection channel 10. The timing of the connection of the pipeline channel 14 is related to the timing of the separation of the separating body 6 and the separated body 7: when the separating parts are not separated, the push rod 2 is held in the second position, and the pipeline channel 14 is isolated from the connection channel 10. When the separating body 6 and the separated body 7 are separated, the push rod 2 loses the pressing constraint of the separating body 6. High-pressure gas or liquid pushes the push rod 2 to slide to the first position inside the connection channel 10, so that the connection nozzle 13 is unblocked, and the gas or liquid flows to the next level pipeline.

[0044] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A device for cooling equipment, characterized in that, It includes: A valve body (1) has a guide channel (10) and a pipeline channel (14) inside. One end of the guide channel (10) is an inlet (12). The pipeline channel (14) is located on one side of the guide channel (10) and is connected to the guide channel (10). A guide nozzle (13) is provided on one side of the valve body (1). The guide nozzle (13) is connected to the guide channel (10) through the pipeline channel (14). A limit structure (11) is provided inside the guide channel (10). The limiting structure (11) is used to prevent the push rod (2) from moving axially toward the bottom of the valve body (1) along the valve body (1). The surface of the push rod (2) is provided with a limiting fit structure (20). When the limiting structure (11) is connected to the limiting fit structure (20), the push rod (2) is in the first position. The limiting structure (11) is a first step protruding from the inner wall of the conduction channel (10). The limiting fit structure (20) is a second step that is recessed on the surface of the push rod (2) and matches the first step. Push rod (2), one end of push rod (2) extends into the inside of the conduction channel (10) and is slidably connected to the valve body (1). Push rod (2) has a first position and a second position. When push rod (2) is in the first position, the pipeline channel (14) is connected to the conduction channel (10). When push rod (2) is in the second position, the pipeline channel (14) is separated from the conduction channel (10). Positioning structure (5), the positioning structure (5) is set on the valve body (1), and one end is detachably connected to the push rod (2). When the positioning structure (5) is connected to the push rod (2), the push rod (2) is in the second position. The separated body (7) is connected to the valve body (1) at one end away from the inlet (12), and the other end of the push rod (2) passes through the separated body (7) and is slidably connected to the separated body (7); Separator (6), which abuts against the other end of push rod (2).

2. The equipment cooling device as described in claim 1, characterized in that: The push rod (2) is provided with a positioning and fitting structure (21). When the positioning structure (5) is connected to the positioning and fitting structure (21), the push rod (2) is in the second position.

3. The equipment cooling device as described in claim 2, characterized in that: The valve body (1) is provided with a through groove, the positioning structure (5) is a stop pin (50), and the positioning mating structure (21) is a positioning groove; One end of the stop pin (50) is provided with a through groove and is inserted into the positioning groove.

4. The equipment cooling device as described in claim 1, characterized in that: The other end of the push rod (2) is threaded with a cap (3).

5. The equipment cooling device as described in claim 1, characterized in that: A sealing ring (4) is fixedly connected to the surface of the push rod (2) and / or the inner wall of the conduction channel (10).

6. The equipment cooling device as described in claim 1, characterized in that: A sealing ring (4) is fixedly connected between the guide nozzle (13) and the surface of the valve body (1).

7. The equipment cooling device as described in claim 1, characterized in that: The valve body (1) is fixedly connected to a flange at the end away from the inlet (12), and the separated body (7) is connected to the flange by fasteners (8).

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