CN111059469A - Integrated space application nitrogen supply distribution control device - Google Patents
Integrated space application nitrogen supply distribution control device Download PDFInfo
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- CN111059469A CN111059469A CN201911408377.XA CN201911408377A CN111059469A CN 111059469 A CN111059469 A CN 111059469A CN 201911408377 A CN201911408377 A CN 201911408377A CN 111059469 A CN111059469 A CN 111059469A
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- detection device
- control box
- nitrogen supply
- space application
- distribution control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/16—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe the branch pipe comprising fluid cut-off means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention relates to an integrated nitrogen supply distribution control device for space application, which comprises a mainframe box, a first detection device, a second detection device and an electric control box, wherein the electric control box, the first detection device and the second detection device are respectively installed in the mainframe box; the first detection device is arranged at the gas path inlet and used for detecting a first state parameter box of gas in the total gas path; the second detection device is used for detecting second state parameters of the main gas paths; the electric control box is used for controlling the on-off of the main air path according to the first state parameter and the second state parameter. The invention has the advantages that one main gas circuit has problems, and the normal use of other main gas circuits is not influenced.
Description
Technical Field
The invention relates to the technical related field of aerospace pneumatic systems, in particular to an integrated nitrogen supply distribution control device for space application.
Background
Space laboratories and space stations have been the hot spot of competitive research in the aerospace world. China launches a Tiangong I target aircraft in 2011 and 9 months, one of the main tasks of China is to develop a space experiment and establish a space experiment platform which can operate independently and reliably without people for a long time; and a second Tiangong is also transmitted in the later period to carry out related experiments. The Chinese space station has the function of providing a safe and proper environment for engineering experiments and life research under a microgravity environment in a low earth orbit and natural scientific research, and aims to build a world-level and internationalized orbit laboratory to perform high-value scientific experiments, provide a microgravity environment, research and develop the capability of long-time life and work in space and provide an experimental platform for researching and detecting advanced technologies of the universe. Therefore, the space experiment is carried out and advanced space science and technology is developed in both space laboratories and space stations.
From the development requirements and long-term strategic plan of the research of the space science experiment in China, the space science experiment must break through the design mode of the traditional single experimental device, design a multipurpose space science experiment carrier and a multipurpose platform, and carry out uniform layout and distribution on various resources of the experiment carrier from the viewpoint of overall planning. The application system uniformly provides nitrogen resources for scientific loads with nitrogen requirements in sealed cabins of the experiment cabin I and the experiment cabin II, and simplifies system design of related loads; and the ascending, storage and supply of the applied nitrogen resources are optimized comprehensively.
The key problems to be solved are how to design a safe and reliable nitrogen supply distribution device and how to stably and efficiently supply nitrogen according to the requirements of a scientific experimental device, and meanwhile, the reliability, maintainability and safety of the whole system and the device and the occupation of space stations and scientific load resources as little as possible need to be considered.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an integrated space application nitrogen supply distribution control device.
The technical scheme for solving the technical problems is as follows: an integrated nitrogen supply distribution control device for space application is characterized by comprising a mainframe box, a first detection device, a second detection device and an electric control box, wherein the electric control box, the first detection device and the second detection device are respectively installed in the mainframe box;
the first detection device is arranged at the gas path inlet and used for detecting a first state parameter of gas in the total gas path and sending the first state parameter to the electric control box; the second detection device is used for detecting second state parameters of the main gas paths and sending the second state parameters to the electric control box; and the electric control box is used for controlling the on-off of the main air path according to the first state parameter and the second state parameter.
The invention has the beneficial effects that: the invention utilizes the electric control box to uniformly supply power to each module in the mainframe box, judges whether the device normally works according to the data of the detection device, and completes the on-off control of the main air path according to the analyzed instruction requirement. A plurality of main gas circuits are arranged, and even if one main gas circuit goes wrong, the normal use of other main gas circuits is not influenced. The invention can realize the centralized supply, the centralized monitoring and the centralized design of the nitrogen supply, is more beneficial to the installation, the replacement and the maintenance of the device compared with the distribution and the placement of each functional component in the experiment cabin of the space station, thereby ensuring longer service life and meeting the requirement of the space experiment. Meanwhile, the layout and the trend of pipelines in the system are facilitated; in addition, the pipeline system is designed and simplified in a centralized way; the length and weight of the pipeline are saved, and the cost of the supply system is reduced.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the first detection device comprises a first pressure sensor or/and a temperature sensor or/and a flow sensor, and is used for detecting a first pressure value or/and a temperature value or/and a flow value of the gas in the total gas path and sending the first pressure value or/and the temperature value or/and the flow value to the electronic control box;
the second detection device comprises a second pressure sensor and is used for detecting second pressure values in the main gas paths and sending the second pressure values to the electric control box;
the electric control box is used for controlling the opening of the main air paths with the second pressure values in the second set range and controlling the disconnection of other main air paths when the first pressure values or/and the temperature values or/and the flow values are in the first set range and the main air paths with the second pressure values in the second set range exist in the plurality of main air paths.
The beneficial effect of adopting the further scheme is that: the main gas path is provided with a pressure sensor, a temperature sensor and a flow sensor, so that the input pressure, temperature and flow parameters of nitrogen in the main gas path can be monitored in real time; through the analysis of the parameters, the safety and the reliability of nitrogen distribution can be ensured, and the normal and smooth operation of the experiment in the cabin is ensured; and even if one main air path has problems, the normal use of other main air paths is not influenced.
Furthermore, each main air path is provided with a second pressure sensor and a stop valve, the stop valves are connected with the electric control box, and the electric control box controls the on-off of the corresponding main air path by controlling the on-off of the stop valves.
The beneficial effect of adopting the further scheme is that: through the cooperation of the pressure sensor and the stop valve, the quick on-off of the corresponding main air path can be realized.
Further, the first set range comprises a first preset pressure range or/and a preset temperature range or/and a preset flow range;
the second set range includes a second preset pressure range.
Further, a safety valve is further arranged on the main gas path.
Furthermore, a check valve is arranged on the main gas path.
The beneficial effect of adopting the further scheme is that: the setting of check valve avoids nitrogen gas backward flow.
Furthermore, a plurality of installation lugs are arranged on the periphery of the external bottom plate of the mainframe box, filleting is adopted at edges and corners of the installation lugs, and non-release screws are arranged on the installation lugs.
The beneficial effect of adopting the further scheme is that: the installation lug structure ensures the installation strength, the fillet treatment is carried out, and the requirements of man-machine efficiency and on-track replacement are met. In addition, the installation lugs are provided with the release screws, so that the in-orbit dismounting, maintenance and replacement of astronauts are facilitated, and the in-orbit 15-year service life requirement can be met.
Furthermore, two ends of the bottom plate are respectively provided with three mounting lugs.
Furthermore, a DN4 self-sealing quick disconnect device connected with a pipeline of the indoor experiment cabinet is installed at the gas path outlet.
The beneficial effect of adopting the further scheme is that: the DN4 self-sealing quick disconnect is a more key component at the outlet of the gas path; the quick disconnector is a pipeline convenient for astronauts to disassemble, assemble and connect on orbit, thereby facilitating the on-orbit disassembly, assembly, maintenance and replacement of the whole device and realizing the requirements on functions and service life; secondly, when the self-sealing can ensure the quick disconnector to be disassembled and assembled, the pressure (0.6MPa) exists in the quick disconnector, nitrogen cannot be leaked, and nitrogen in a downstream pipeline cannot be leaked in an experimental cabin, so that the sealing of gas is realized. Otherwise, once leaked into the experiment chamber, the gas pressure and the oxygen concentration in the experiment chamber change, and the living environment of the astronaut is affected.
Furthermore, the inlet of the gas path is connected with a nitrogen bottle by a DN4 metal corrugated hose.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the main cabinet according to the present invention;
fig. 3 is a schematic diagram of the control device of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a main chassis; 2. an electronic control box; 3. a total gas path; 4. a main gas path; 5. a first pressure sensor; 6. a temperature sensor; 7. a flow sensor; 8. a second pressure sensor; 9. a stop valve; 10. a safety valve; 11. a one-way valve; 12. a gas path inlet; 13. an air path outlet; 14. and installing a lug.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1-3, the integrated nitrogen supply distribution control device for space application in this embodiment includes a main chassis 1, a first detection device, a second detection device, and an electronic control box 2, where the electronic control box 2, the first detection device, and the second detection device are respectively installed in the main chassis 1, a gas path inlet 12 and a plurality of gas path outlets 13 are arranged on a side wall of the main chassis 1, a main gas path 3 and a plurality of main gas paths 4 are arranged in the main chassis 1, the main gas path 3 is respectively connected to the gas path inlet 12 and the plurality of main gas paths 4, and divides the main gas path into a plurality of paths, and then flows into the plurality of main gas paths 4 in a one-to-one correspondence manner, and the plurality of main gas paths 4 are respectively connected to the plurality of gas path outlets 13 in a one-to-;
the first detection device is arranged at the gas path inlet 12 and used for detecting a first state parameter of gas in the total gas path 3 and sending the first state parameter to the electronic control box 2; the second detection device is used for detecting second state parameters of the main gas paths 4 and sending the second state parameters to the electric control box 2; and the electric control box 2 is used for controlling the on-off of the main air path 4 according to the first state parameter and the second state parameter.
The electronic control box is used for supplying power to all modules in the mainframe box in a unified mode, whether the device works normally is judged according to data of the detection device, and on-off control over the main air path is completed according to analyzed instruction requirements. A plurality of main gas circuits are arranged, and even if one main gas circuit goes wrong, the normal use of other main gas circuits is not influenced. The embodiment can realize the centralized supply, the centralized monitoring and the centralized design of the nitrogen supply, and the centralized design is distributed and placed in the experiment cabin of the space station for each functional component, so that the installation, the replacement and the maintenance of the device are more facilitated, therefore, the longer service life can be ensured, and the space experiment can be satisfied. Meanwhile, the layout and the trend of pipelines in the system are facilitated; in addition, the pipeline system is designed and simplified in a centralized way; the length and weight of the pipeline are saved, and the cost of the supply system is reduced.
As shown in fig. 2 and 3, the first detection device includes a first pressure sensor 5 or/and a temperature sensor 6 or/and a flow sensor 7, and is configured to detect a first pressure value or/and a temperature value or/and a flow value of the gas in the total gas path 3 and send the first pressure value or/and the first temperature value or/and the flow value to the electronic control box 2; the second detection device comprises a second pressure sensor 8, and is used for detecting second pressure values in the main gas paths 4 and sending the second pressure values to the electronic control box 2; the electric control box 2 is used for controlling the main gas circuits 4 with the second pressure values in the second set range to be opened and controlling other main gas circuits 4 to be disconnected when the first pressure values or/and the temperature values or/and the flow values are in the first set range and the main gas circuits with the second pressure values in the second set range exist in the plurality of main gas circuits 4. The main gas path is provided with a pressure sensor, a temperature sensor and a flow sensor, so that the input pressure, temperature and flow parameters of nitrogen in the main gas path can be monitored in real time; through the analysis of the parameters, the safety and the reliability of nitrogen distribution can be ensured, and the normal and smooth operation of the experiment in the cabin is ensured; and even if one main air path has problems, the normal use of other main air paths is not influenced.
As shown in fig. 2 and 3, each main air path 4 is provided with a second pressure sensor 8 and a stop valve 9, the stop valve 9 is connected with the electronic control box 2, and the electronic control box 2 controls the on-off of the corresponding main air path 4 by controlling the on-off of the stop valve 9. Through the cooperation of the pressure sensor and the stop valve, the quick on-off of the corresponding main air path can be realized.
One specific scheme of this embodiment is that the first setting range includes a first preset pressure range or/and a preset temperature range or/and a preset flow range; the second set range includes a second preset pressure range.
As shown in fig. 2 and 3, in a preferred embodiment of the present invention, a safety valve 10 is further disposed on the main gas path 3. And the main gas path 3 is provided with a one-way valve 11. The setting of check valve avoids nitrogen gas backward flow.
As shown in fig. 1 and 2, a plurality of installation lugs 14 are arranged on the periphery of an external bottom plate of the main cabinet 1, corners of the installation lugs 14 are rounded, and the installation lugs 14 are provided with non-detachable screws. The installation lug structure ensures the installation strength, the fillet treatment is carried out, and the requirements of man-machine efficiency and on-track replacement are met. In addition, the installation lugs are provided with the release screws, so that the in-orbit dismounting, maintenance and replacement of astronauts are facilitated, and the in-orbit 15-year service life requirement can be met.
Specifically, as shown in fig. 1 and 2, three mounting lugs are respectively arranged at two ends of the bottom plate.
In a preferred embodiment of this embodiment, a DN4 self-sealing quick disconnect device connected to a cabin interior test cabinet pipeline is installed at the air path outlet 13. The gas path inlet 12 is connected with a nitrogen bottle by a DN4 metal corrugated hose.
The specific scheme of this embodiment is that there are two main air paths, and each main air path has a stop valve and a second pressure sensor. And each main air path can also be divided into a plurality of branches, and finally, the air can be conveyed into the experiment cabinet connected with the branches. For example, the two main air paths are divided into five branches (seven branches in the cabin II), the first main air path is divided into three branches (four branches in the cabin II), the second main air path is divided into two branches (three branches in the cabin II), and each main air path is controlled to be switched on and off through a stop valve on the main air path.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An integrated nitrogen supply distribution control device for space application is characterized by comprising a mainframe box, a first detection device, a second detection device and an electric control box, wherein the electric control box, the first detection device and the second detection device are respectively installed in the mainframe box;
the first detection device is arranged at the gas path inlet and used for detecting a first state parameter of gas in the total gas path and sending the first state parameter to the electric control box; the second detection device is used for detecting second state parameters of the main gas paths and sending the second state parameters to the electric control box; and the electric control box is used for controlling the on-off of the main air path according to the first state parameter and the second state parameter.
2. The integrated space application nitrogen supply distribution control device according to claim 1, wherein the first detection device comprises a first pressure sensor or/and a temperature sensor or/and a flow sensor for detecting a first pressure value or/and a temperature value or/and a flow value of the gas in the total gas path and sending the first pressure value or/and the temperature value or/and the flow value to the electronic control box;
the second detection device comprises a second pressure sensor and is used for detecting second pressure values in the main gas paths and sending the second pressure values to the electric control box;
the electric control box is used for controlling the opening of the main air paths with the second pressure values in the second set range and controlling the disconnection of other main air paths when the first pressure values or/and the temperature values or/and the flow values are in the first set range and the main air paths with the second pressure values in the second set range exist in the plurality of main air paths.
3. The integrated space application nitrogen supply and distribution control device as claimed in claim 2, wherein each of the main air paths is provided with a second pressure sensor and a stop valve, the stop valve is connected with the electronic control box, and the electronic control box controls the on-off of the corresponding main air path by controlling the on-off of the stop valve.
4. The integrated space application nitrogen supply distribution control device according to claim 2, wherein the first set range comprises a first preset pressure range or/and a preset temperature range or/and a preset flow range;
the second set range includes a second preset pressure range.
5. The integrated space application nitrogen supply distribution control device according to any one of claims 1 to 4, wherein a safety valve is further provided on the main gas path.
6. An integrated space application nitrogen supply distribution control device according to any one of claims 1 to 4, wherein a check valve is provided on the main gas path.
7. An integrated space application nitrogen supply distribution control device according to any one of claims 1 to 4, wherein a plurality of mounting lugs are arranged on the periphery of the external bottom plate of the main cabinet, the corners of the mounting lugs are rounded, and the mounting lugs are provided with release screws.
8. An integrated space application nitrogen supply distribution control apparatus as claimed in claim 7, wherein said base plate is provided at each end thereof with three mounting lugs.
9. The integrated space application nitrogen supply distribution control device as claimed in any one of claims 1 to 4, wherein a DN4 self-sealing quick disconnect connected with a laboratory cabinet pipeline in the cabin is installed at the air path outlet.
10. The integrated space application nitrogen supply distribution control device as claimed in any one of claims 1 to 4, wherein the gas path inlet is connected with a nitrogen bottle by a DN4 metal corrugated hose.
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| CN201911408377.XA CN111059469A (en) | 2019-12-31 | 2019-12-31 | Integrated space application nitrogen supply distribution control device |
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| CN201911408377.XA CN111059469A (en) | 2019-12-31 | 2019-12-31 | Integrated space application nitrogen supply distribution control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114165731A (en) * | 2021-11-30 | 2022-03-11 | 北京航天动力研究所 | Miniature integrated module for thermal control system |
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| CN114165731B (en) * | 2021-11-30 | 2024-03-26 | 北京航天动力研究所 | Miniature integrated module for thermal control system |
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