Large-scale profound hypothermia environment test system and method

Abstract

The invention relates to a large-scale deep hypothermia environment test system and method, the test system comprises a main body structure, the main body structure comprises a test section and further comprises a transfer plant, the transfer plant comprises a dry air hall communicated with the test section, the dry air hall is connected with an environment air hall through a dry-wet conversion gate, the bottom of the dry air hall communicates with a low-temperature model transformation room, and the bottom of the ambient air hall communicates with a model assembly room; a track is further arranged in the transfer plant, a model hoisting device capable of moving along the track is arranged on the track, and the model hoisting device is used for hoisting the model assembly to the test section, the low-temperature model transformation room and the model assembly room. According to the invention, the model assembly can be hoisted among the model assembly room, the low-temperature model transformation room and the test sections through the transfer plant, so that the operation safety is improved, the test efficiency is greatly improved, the model can be debugged in time in the test process, and the test effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of large-scale wind tunnel equipment, and in particular to a large-scale deep low temperature environment test system and method. Background Art

[0002] Large-scale cryogenic test systems utilize cryogenic nitrogen as the test medium, operating at temperatures as low as -163°C. Unlike conventional wind tunnels, when models need to be replaced or debugged during cryogenic testing, personnel cannot directly enter the test section, nor can they transfer the cryogenic model directly from the test section to ambient air.

[0003] At the same time, the volume and mass of the model components used to carry the model are very large, and the large-scale deep low temperature environment test system requires additional systems and equipment that are very complicated. Therefore, the reasonable configuration of the relative positions of each system and the consideration of test costs and test efficiency are also issues that need to be considered in large-scale deep low temperature environment test systems.

[0004] It can be seen that the existing conventional wind tunnels are difficult to meet the special needs of large-scale deep cryogenic environment test systems. Therefore, it is necessary to design a large-scale deep cryogenic environment test system that takes into account the special requirements of deep cryogenic environments and operates efficiently and reliably. Summary of the Invention

[0005] One purpose of the present invention is to provide a large-scale deep low temperature environment test system, which uses the rails and model lifting devices set in the transfer plant to realize the lifting of large model components between the model assembly room, the low-temperature model conversion room, and the test section. At the same time, the transfer plant is divided into an ambient air hall and a dry air hall separated by a dry-wet conversion gate, so that the staff can directly assemble the model in the model assembly room connected to the ambient air hall, and the model to be debugged in the test section can also enter the low-dew point, low carbon dioxide content low-temperature model conversion room to complete the debugging, which greatly improves the test efficiency and test effect.

[0006] The above-mentioned purpose of the present invention is achieved through the following technical solutions:

[0007] A large-scale cryogenic environment test system includes a main structure. The main structure includes a test chamber with a test section, and also includes a transfer workshop. The transfer workshop includes a dry air hall communicating with the test section. The dry air hall is connected to an ambient air hall through a dry-wet conversion gate. Among them, at least one low-temperature model conversion room is communicated at the bottom of the dry air hall, and at least one model assembly room is communicated at the bottom of the ambient air hall; An orbit is also arranged in the transfer workshop, and a model hoisting device capable of moving along the orbit is arranged on the orbit. The model hoisting device is used to hoist model components to the test section, the low-temperature model conversion room, and the model assembly room; During the operation of the system, the dew point of the air in the dry-wet conversion gate, the dry air hall, and the low-temperature model conversion room is lower than -60°C, and the carbon dioxide content is lower than 10 ppm.

[0008] In this technical solution, the test system includes a main structure. The main structure can adopt an existing wind tunnel structure, which mainly includes a diffuser section, a stabilization section, a contraction section, a test section, etc. Among them, the test section is arranged in the test chamber. In some preferred embodiments, the main structure adopts a return flow structure in the prior art.

[0009] In this technical solution, the test system also includes a transfer workshop, and the transfer workshop is a two-story structure. Among them, the upper layer of the transfer workshop is the area for the movement of the model hoisting device, mainly including a dry air hall, a dry-wet conversion gate, and an ambient air hall connected in sequence; The lower layer of the transfer workshop is the area for the assembly and debugging of model components, mainly including at least one low-temperature model conversion room and at least one model assembly room.

[0010] In this technical solution, the dry air hall on the upper layer of the transfer workshop is communicated with the test section of the test chamber, and the model components in the dry air hall can be moved into or out of the test section through the test chamber opening above the test section. The ambient air hall is communicated with the outside to move the model hoisting device into or out of the transfer workshop. In some preferred embodiments, a detachable sealing door is arranged on the south outer wall of the upper layer of the transfer workshop. After removing the detachable sealing door, the model hoisting device and the test chamber opening cover hoisting device can run along the orbit to the outdoor steel frame. The dry-wet conversion gate is used to separate the ambient air hall and the dry air hall. In some embodiments, a first gate is arranged between the dry-wet conversion gate and the ambient air hall, and a second gate is arranged between the dry-wet conversion gate and the dry air hall. The first gate and the second gate are used to block the air flow between the ambient air hall and the dry air hall, and at the same time, the dry-wet conversion gate is used as a transition area to adjust the humidity of the air.

[0011] When lifting out the model components to be debugged from the test section, the model components enter the dry-wet conversion gate along the track through the dry air hall and are warmed up to room temperature, and then enter the ambient air hall, which can ensure that the surface of the low-temperature model components removed from the test section will not freeze / frost during the transfer process. Similarly, by using the transition of the dry-wet conversion gate, the model components in the ambient air hall enter the dry-wet conversion gate to remove moisture and carbon dioxide, and then enter the dry air hall, ensuring that external moisture and carbon dioxide do not enter the dry air hall during the transfer process, thereby further improving the accuracy and safety of the test.

[0012] There is also a track provided on the upper layer of the transfer workshop. The track can be laid on the floor slab of the upper layer of the transfer workshop or on the ceiling of the upper layer of the transfer workshop. In some preferred embodiments, considering the weight of the model components and the model lifting device, the track is laid on the floor slab of the upper layer of the transfer workshop. The model lifting device provided on the track can adopt the existing gantry structure to realize the lifting of the model components. The model lifting device can move along the track between the dry air hall and the ambient air hall.

[0013] In this technical solution, the lower layer of the transfer workshop is mainly provided with a model assembly room and a low-temperature model conversion room. Among them, each model assembly room is connected to the ambient air hall above through a lifting hole, and the model lifting device can move the model components into or out of the model assembly room through the lifting hole. In the model assembly room, the staff can perform operations such as assembly, debugging, and maintenance on the model components at room temperature. After the operation is completed, they can be temporarily stored in the model assembly room or transferred to the test section according to requirements by using the model lifting device. Each low-temperature model conversion room is connected to the dry air hall above through a lifting hole, and the model lifting device can move the model components into or out of the low-temperature model conversion room through the lifting hole. In the low-temperature model conversion room, the staff can perform operations such as debugging and changing the model test conditions on the model components at low temperature, and after the operation is completed, transfer the model components to the test section.

[0014] By setting up a transfer workshop, before and during the test in the main structure, the assembly of model components can be completed in the model assembly room. After the assembly is completed, the model components can be stored in the model assembly room for standby, or lifted to the upper layer of the transfer workshop, then moved above the test section, and finally placed into the test section. During the operation of the system, when it is necessary to debug the model components at low temperature, the model lifting device lifts them into the low-temperature model conversion room. After the debugging is completed, they are lifted back into the test section for testing. During the operation of the system, the air in the wet-dry conversion gate, the dry air hall, and the low-temperature model conversion room is regulated to air with an extremely low dew point and an extremely low carbon dioxide content. In some preferred embodiments, the dew point of the air in the wet-dry conversion gate, the dry air hall, and the low-temperature model conversion room is lower than -60 °C, and the carbon dioxide content is lower than 10 ppm.

[0015] In this technical solution, the transfer workshop enables the lifting of model components between the model assembly room, the low-temperature model conversion room, and the test section. The model assembly room connected to the ambient air hall allows staff to operate the model components at normal temperature before and during the test, while the low-temperature model conversion room connected to the dry air hall allows staff to debug the model components at low temperature during the operation of the system. This not only improves the safety of operation but also greatly improves the test efficiency. Moreover, during the test process, the model can be debugged in a timely manner, effectively improving the test effect. Additionally, by maintaining the low dew point and carbon dioxide content in the wet-dry conversion gate, the dry air hall, and the low-temperature model conversion room, it can be ensured that the surface of the low-temperature model components will not freeze / frost during transportation.

[0016] Furthermore, an outdoor steel frame is provided outside the transfer workshop, and the track extends to the upper surface of the outdoor steel frame.

[0017] In this technical solution, an outdoor steel frame is also provided outside the transfer workshop, and the outdoor steel frame is located outside the sealed door of the ambient air hall. Tracks are also laid on the upper surface of the outdoor steel frame. When the outdoor steel frame is installed outside the transfer workshop, the track on the upper surface of the outdoor steel frame is aligned with the track of the transfer workshop, allowing the model lifting device in the transfer workshop to move along the track to the outdoor steel frame. By setting up the outdoor steel frame, the assembly and maintenance of the model lifting device can be carried out outside the transfer workshop, which has a larger operating space compared to inside the transfer workshop, facilitating the rapid construction of large machinery, further improving the assembly and maintenance efficiency of the model lifting device, and enhancing the overall test efficiency of the system.

[0018] Furthermore, it also includes a chamber door lifting device that can move along the track. The chamber door lifting device is used to lift the chamber door to close or open the chamber between the test section and the dry air hall.

[0019] In this technical solution, a hoisting device for the access hatch of the resident chamber is also provided on the track. The hoisting device for the access hatch of the resident chamber can be located in the dry air hall for a long time. During the operation of the system, when it is necessary to debug the model components, the model hoisting device is moved to take out the model components. Then, the hoisting device for the access hatch of the resident chamber is moved to the access hatch of the resident chamber, and the access hatch of the resident chamber is lowered to close the access hatch. By setting up the hoisting device for the access hatch of the resident chamber, the access hatch of the resident chamber can be moved more quickly and safely to open or close the access hatch of the resident chamber, further improving the test efficiency.

[0020] Furthermore, a dry system plant is provided on one side of the dry air hall, and a temperature control system plant is provided on the other side of the dry air hall. Among them, the dry system plant is used to reduce the dew point and carbon dioxide content of the air in the dry air hall, the wet-dry conversion gate, and the low-temperature model conversion room during the operation of the system, and the temperature control system plant is used to adjust the temperature in the low-temperature model conversion room during the operation of the system.

[0021] In this technical solution, the dry system plant and the temperature control system plant are respectively arranged on both sides of the dry air hall. In some embodiments, the dry system plant includes a high-pressure fan room, a refrigeration station, and a drying equipment area to reduce the dew point and carbon dioxide content of the air in the dry air hall, the wet-dry conversion gate, and the low-temperature model conversion room, so as to prevent the surface of the model components at low temperature from icing / frosting when entering the ambient air. In some preferred embodiments, the dry system plant is further provided with a second frequency converter room and a second power distribution room, so that the power distribution system is close to the dry system plant, which is one of the main power consumption loads. Similarly, the temperature control system plant includes a temperature regulation machine room, which is used to adjust the temperature in the low-temperature model conversion room. In some preferred embodiments, the temperature control system plant further includes a third power distribution room to meet the high power consumption load requirements of the temperature regulation system.

[0022] Furthermore, a test hall is further included. The main structure is arranged in the test hall. In the test hall, there is also a compressor auxiliary system equipment area and a compressor component storage area arranged around the main structure. A water pump plant area is arranged outside the test hall. The water pump plant area includes a first frequency converter room, a first power distribution room, and a water pump room.

[0023] In this technical solution, the main structure is arranged in the test hall, and an auxiliary system of a large low-temperature compressor and a related accessory storage area, such as a compressor auxiliary system equipment area and a compressor component storage area, are configured near the main structure to realize timely and convenient maintenance and debugging of the compressor, further improving the test efficiency. In addition, a water pump plant area is arranged outside the test hall, and the water pump plant area is used to supply operating water to the test system. To meet the power consumption load, a first frequency converter room and a first power distribution room are also arranged in the water pump plant area.

[0024] Furthermore, it also includes a nitrogen generation station. The liquid nitrogen produced by the nitrogen generation station is stored in the liquid nitrogen storage tank equipment area. The liquid nitrogen in the liquid nitrogen storage tank equipment area is transported to the liquid nitrogen supply system workshop and then to the main structure through a liquid nitrogen trench, and / or the liquid nitrogen in the liquid nitrogen storage tank equipment area is transported to the liquid nitrogen vaporization equipment area to be vaporized into nitrogen and stored in the nitrogen storage tank equipment area. The nitrogen storage tank equipment area is used to output nitrogen to the gas distribution bench equipment area.

[0025] In this technical solution, to ensure the supply of a large amount of high-purity liquid nitrogen and nitrogen required for the operation of the test device, a dedicated nitrogen generation station, a liquid nitrogen supply system, and a liquid nitrogen vaporization system are also configured. Specifically, the nitrogen generation station is independently arranged outside the test hall and is used to produce high-purity liquid nitrogen. The produced liquid nitrogen is stored in the liquid nitrogen storage tank equipment area. When in use, it is transported from the liquid nitrogen storage tank to the liquid nitrogen supply system workshop, and finally the liquid nitrogen is supplied to the main structure through the liquid nitrogen trench between the liquid nitrogen supply system workshop and the main structure. At the same time, the liquid nitrogen stored in the liquid nitrogen storage tank equipment area can also be transported to the liquid nitrogen vaporization equipment area to be vaporized into nitrogen and stored in the nitrogen storage tank equipment area. When nitrogen is needed, it is transported to the gas distribution bench equipment area arranged in the test hall.

[0026] As a preferred structure of the model assembly room in the present invention, specifically, the model assembly room includes a model assembly area. The top of the model assembly area is connected to the environmental air hall, and a model loading area is provided at the bottom of the model assembly area. In the model assembly area, there are a model component upper support frame and a model component lower support steel column for supporting the model components; a first guide pin is provided on the model component upper support frame, and the first guide pin matches the guide hole provided on the model component; at least two first guide sleeves are provided on the model component lower support steel column, and the at least two first guide sleeves form a limiting area, and the limiting area is used to limit the model component to move only in the vertical direction.

[0027] In this technical solution, the model assembly area in the model assembly room is used to store the model components to be assembled. The top of the model assembly area is connected to the environmental air hall through a lifting hole. The model lifting device hoists the model components into the model assembly area through the lifting hole or hoists them from the model assembly area to the environmental air hall.

[0028] The model assembly is characterized by being large in size and heavy in mass. In order to achieve stable support for the model assembly, an upper support frame for the model assembly and a lower support steel column for the model assembly are provided in the model assembly area. The upper support frame for the model assembly is used to support the upper portion of the model assembly. In some embodiments, the top surface of the upper support frame for the model assembly is the top surface of a reinforced concrete beam, on which a first embedded steel plate is pre-embedded, and a first adjustment steel plate is welded to the first embedded steel plate. In one or more embodiments, a buffer plate is also installed on the first adjustment steel plate, and the buffer plate is preferably made of polytetrafluoroethylene. In one or more embodiments, a buffer rubber block is also provided on the first adjustment steel plate to further reduce the impact on the upper support frame of the model assembly when the model assembly is hoisted and placed into position.

[0029] The lower supporting steel column of the model assembly is used to support the bottom of the model assembly. In some embodiments, a third adjustment steel plate is welded to the top surface of the lower supporting steel column of the model assembly.

[0030] In this technical solution, a first guide pin is also provided on the upper support frame of the model assembly. The first guide pin is arranged on the top surface of the upper support frame of the model assembly. At the same time, a guide hole is also provided on the upper half of the model assembly. By matching the guide hole with the first guide pin, the large model assembly can be positioned and guided during lifting, ensuring that the model assembly is placed in the desired position. In addition, at least two first guide sleeves are provided on the inner side of the upper support frame of the model assembly. When the model assembly enters the limiting area formed by the multiple first guide sleeves, the inner side of each first guide sleeve contacts the outer wall of the model assembly, so that the model assembly can only move in the vertical direction, effectively improving the stability and safety of the model assembly during lifting.

[0031] As a preferred structure of the low-temperature model conversion room in the present invention, specifically, the low-temperature model conversion room includes an operation chamber installation well, the top of the operation chamber installation well is connected to the dry air hall, and a low-temperature model operation chamber for placing model components is provided in the operation chamber installation well, and an outer ring support frame, an inner ring support column, and a bottom support frame are used to support the model components. An internal insulation structure is provided on the inner wall of the low-temperature model operation chamber; wherein, the low-temperature model operation chamber includes a model component accommodating area, and a model operation room and a model support plate accommodating area that are interconnected are provided below the model component accommodating area, a vertical partition door is provided between the model operation room and the model support plate accommodating area, and a horizontal partition door is provided between the model operation room and the model component accommodating area.

[0032] In this technical solution, the low-temperature model transformation chamber includes an operation chamber installation well. The top of the operation chamber installation well is connected to the dry air hall through a hoisting hole. The model hoisting device hoists the model components into the operation chamber installation well through the hoisting hole, or hoists them from the operation chamber installation well to the dry air hall.

[0033] In this technical solution, in order to keep the model components in air with an extremely low dew point and an extremely low carbon dioxide content during transportation and maintain the low temperature of the model components, a low-temperature model operation chamber is provided in the operation chamber installation well. An internal heat insulation structure, such as a heat insulation layer, is provided in the low-temperature model operation chamber to greatly reduce the temperature change in the low-temperature model operation chamber. The low-temperature model operation chamber includes three parts: a model component accommodation area, a model support plate accommodation area, and a model operation room. Among them, the model component accommodation area is used to accommodate the main structure of the model components, the model support plate accommodation area is used to accommodate the model support plates at the bottom of the model components, and the two areas of the model component accommodation area and the model support plate accommodation area are always in a low-temperature environment during the debugging process. The model operation room is used to accommodate the model, and its temperature is close to that of the entrance gate and the transition chamber, so as to facilitate the staff to debug the model after entering.

[0034] In this technical solution, a horizontal partition door is provided between the model operation room and the model component accommodation area above it, and a vertical partition door is provided between the operation room and the adjacent model support plate accommodation area. When the model components need to be put into the low-temperature model operation chamber, both the horizontal and vertical partition doors are opened, and the working door between the transition chamber and the model operation room is closed. After the model components are fixed in the low-temperature model operation chamber, both the horizontal and vertical partition doors are closed, separating the model operation room from the model component accommodation area and the model support plate accommodation area. The staff can enter the model operation room to debug the model.

[0035] Through the above settings, when the model components need to be debugged during the operation of the system, the model components can be put into the low-temperature model operation chamber, and then the staff can operate the model in the model operation room. This not only enables the model components to maintain their temperature during the test process, reducing the cold loss, but also keeps the model components in air with an extremely low dew point and carbon dioxide content during debugging without being polluted, further improving the test efficiency and effect. At the same time, the staff can complete the test in an environment with a relatively higher temperature, improving the safety and convenience of debugging.

[0036] In this technical solution, a bottom support frame for supporting the bottom of the model support plate accommodation area, an inner ring support column for supporting the bottom of the model components, and an outer ring support frame for supporting the upper part of the model components are also provided in the operation chamber installation well. The inner ring support column and the outer ring support frame are used to stably support the large-volume and high-self-weight model components.

[0037] Another object of the present invention is to provide a large-scale cryogenic environment test method based on any of the aforementioned large-scale cryogenic environment test systems.

[0038] Specifically, the above object of the invention is achieved by the following technical solutions:

[0039] A large-scale cryogenic environment test method specifically includes the following steps:

[0040] Assemble the model in the model assembly room;

[0041] The model hoisting device hoists the assembled model components from the model assembly room, moves along the track to above the test section of the main structure, and places the model components into the test section;

[0042] During the operation of the system when the model needs to be debugged, the model hoisting device hoists the model components to be debugged, moves along the track to above the cryogenic model transformation room, places the model components to be debugged into the cryogenic model transformation room for debugging. After debugging, the model hoisting device hoists the debugged model components to the test section.

[0043] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0044] 1. The present invention can realize the hoisting of model components among the model assembly room, the cryogenic model transformation room, and the test section through the transfer workshop. The model assembly room connected to the environmental air hall allows workers to operate the model components at normal temperature before and during the test, while the cryogenic model transformation room connected to the dry air hall allows workers to debug the model components at low temperature during the operation of the system. This not only improves the operation safety but also greatly improves the test efficiency. Moreover, the model can be debugged in a timely manner during the test process, effectively improving the test effect;

[0045] 2. By maintaining low dew point and carbon dioxide content in the wet-dry conversion gate, the dry air hall, and the cryogenic model transformation room, the present invention can ensure that the surface of the cryogenic model components will not freeze / frost during the transfer process;

[0046] 3. The present invention is independently equipped with a dedicated nitrogen production station, a liquid nitrogen supply system, and a liquid nitrogen vaporization system outside the test hall, effectively ensuring a large amount of high-purity liquid nitrogen and nitrogen supply required for the operation of the test system;

[0047] 4. The outdoor steel frame provided by the present invention can extend the track in the transfer workshop to the outdoor steel frame, so that the model hoisting device can be assembled and repaired outside the transfer workshop. Compared with the operation space inside the transfer workshop, it is larger, which is conducive to the rapid construction of large machinery, further improving the assembly and repair efficiency of the model hoisting device and enhancing the overall test efficiency of the system;

[0048] 5. The structure of the model assembly room of the present invention not only facilitates the formation of stable support for large-volume and high-self-weight model components, but also effectively improves the stability and safety of the model components during hoisting through the matching of the guide pins and guide holes and the limiting area formed by the guide sleeves.

[0049] 6. When the model components need to be debugged during the operation of the system of the present invention, the model components can be placed in the low-temperature model operation chamber, and then the staff can operate the model in the model operation room. This not only enables the model components to maintain their temperature during the test process and reduces the cold loss, but also the model components are always in the air with extremely low dew point and carbon dioxide content during debugging and are not contaminated, further improving the test efficiency and effect. At the same time, the staff can complete the test in an environment with a relatively higher temperature, improving the safety and convenience of debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not constitute a limitation on the embodiments of the present invention. In the drawings:

[0051] Figure 1 It is a schematic diagram of the first layer of the large-scale deep low-temperature environment test system in the specific embodiment of the present invention;

[0052] Figure 2 It is a schematic diagram of the second layer of the large-scale deep low-temperature environment test system in the specific embodiment of the present invention;

[0053] Figure 3 It is a schematic diagram of the structure of the model hoisting device moving along the track in the specific embodiment of the present invention;

[0054] Figure 4 It is a schematic diagram of the structure of the model assembly room in the specific embodiment of the present invention;

[0055] Figure 5 It is a schematic diagram of the structure of the low-temperature model transformation room in the specific embodiment of the present invention;

[0056] Figure 6 It is a schematic diagram of the structure of the first layer of the low-temperature model transformation room in the specific embodiment of the present invention;

[0057] Figure 7 It is a schematic diagram of the structure of the second layer of the low-temperature model transformation room in the specific embodiment of the present invention;

[0058] Marks in the drawings and corresponding component names:

[0059] 1 - Main body structure, 101 - Residence room, 1011 - Residence room entrance;

[0060] 2 - Test Hall, 21 - East Area of the Hall, 211 - Motor Frequency Converter Room, 212 - Liquid Nitrogen Pipe Trench, 213 - Compressor Auxiliary System Equipment Area, 214 - Compressor Component Storage Area, 22 - Middle Area of the Hall, 23 - West Area of the Hall, 24 - North Area of the Hall, 241 - Test Device Storage Area, 242 - Gas Distribution Station Equipment Area, 243 - Dry Sealing Gas Compressor Equipment Area;

[0061] 4 - Vacuum Pump Room, 5 - Sound Insulation Wall of the Exhaust Tower, 6 - Water Pump Factory Area, 61 - First Frequency Converter Room, 62 - First Power Transformation and Distribution Room, 63 - Water Pump Room, 7 - Drying System Workshop, 71 - High - Pressure Blower Room, 72 - Second Frequency Converter Room, 73 - Second Power Transformation and Distribution Room, 74 - Refrigeration Station, 75 - Drying Equipment Area, 76 - Second Corridor, 8 - Temperature Control System Workshop, 81 - Temperature Regulation Machine Room, 82 - Third Power Transformation and Distribution Room, 9 - Measurement and Control Building, 10 - Supporting Equipment Building, 11 - Liquid Nitrogen Supply System Workshop, 12 - Nitrogen Generation Station, 13 - Liquid Nitrogen Storage Tank Equipment Area, 14 - Liquid Nitrogen Vaporization Equipment Area, 15 - Nitrogen Storage Tank Equipment Area, 16 - Cooling Tower Equipment Area, 17 - Dry Sealing Gas Equipment Area, 18 - Outdoor Steel Frame;

[0062] 3 - Transfer Workshop, 311 - First Model Assembly Room, 312 - Second Model Assembly Room, 313 - Third Model Assembly Room, 314 - First Corridor, 315 - Model Access Control Room, 316 - First Low - Temperature Model Transformation Room, 317 - Second Low - Temperature Model Transformation Room, 318 - Third Low - Temperature Model Transformation Room, 321 - Ambient Air Hall, 322 - Dry - Wet Conversion Gate, 323 - Dry Air Hall, 324 - First Gate, 325 - Second Gate, 326 - Model Hoisting Device, 327 - Hatch Hoisting Device for the Stationary Room, 328 - Track, 329 - Demountable Sealing Door, 3211 - Hoisting Hole I, 3212 - Hoisting Hole II, 3213 - Hoisting Hole III, 3231 - Hoisting Hole IV, 3232 - Hoisting Hole V, 3233 - Hoisting Hole VI, 3234 - Hoisting Hole VII, 330 - Model Components, 34 - Model;

[0063] 801 - Model Preparation Area, 802 - Model Assembly Area, 804 - Model Storage Area, 805 - Model Loading Area, 821 - Upper Support Frame for Model Components, 822 - Lower Support Steel Column for Model Components, 8211 - First Embedded Steel Plate, 8212 - First Adjusting Steel Plate, 8213 - Buffer Plate, 8215 - First Guide Pin, 8216 - First Operating Platform, 8218 - Second Embedded Steel Plate, 8219 - Second Adjusting Steel Plate, 8220 - First Guide Sleeve, 8221 - Second Operating Platform, 8223 - Third Adjusting Steel Plate, 8224 - Rubber Block;

[0064] 901 - Entrance gate, 902 - Transition bin, 903 - Low - temperature model operation bin, 904 - Operation bin installation well, 911 - First sealing door, 912 - Second sealing door, 921 - Bottom support frame, 922 - Outer ring support frame, 923 - Inner ring support column, 924 - Bin body, 925 - Horizontal partition door, 926 - Vertical partition door, 927 - Model operation room, 928 - Model support plate accommodation area, 929 - Bottom wall panel, 931 - Second guide pin, 932 - Second guide sleeve, 951 - Inner heat insulation structure, 961 - Model component accommodation area, 971 - Support column, 972 - First - layer support beam, 973 - Second - layer support beam, 974 - Top support ring beam, 975 - Top operation platform, 982 - Buffer support block, 991 - Working door, 992 - Third steel ladder. Detailed implementation mode

[0065] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention.

[0067]

Embodiment 1

[0068] As Figures 1 to 3 shown, a large - scale deep - low - temperature environment test system includes a main structure 1. The main structure 1 includes a test section and also includes a transfer workshop 3. The transfer workshop 3 includes a dry air hall 323 communicating with the test section. The dry air hall 323 is connected to an ambient air hall 321 through a dry - wet conversion gate 322. Among them, at least one low - temperature model conversion room is communicated with the bottom of the dry air hall 323, and at least one model assembly room is communicated with the bottom of the ambient air hall 321; A track 328 is also provided in the transfer workshop 3, and a model hoisting device 326 capable of moving along the track 328 is provided on the track 328. The model hoisting device 326 is used to hoist model components 330 to the test section, the low - temperature model conversion room, and the model assembly room; During the operation of the system, the dew point of the air in the dry - wet conversion gate 322, the dry air hall 323, and the low - temperature model conversion room is lower than - 60°C, and the carbon dioxide content is lower than 10 ppm.

[0069] In some preferred embodiments, a detachable sealing door 329 is provided on the south outer wall of the upper layer of the transfer workshop. After removing the detachable sealing door, the model hoisting device and the chamber door cover hoisting device can run along the track to the outdoor steel frame.

[0070] In some embodiments, a first gate is provided between the dry-wet conversion gate and the ambient air hall, and a second gate is provided between the dry-wet conversion gate and the dry air hall. The first gate and the second gate are used to block the air circulation between the ambient air hall and the dry air hall, and at the same time, the dry-wet conversion gate is used as a transition area to adjust the humidity of the air. In one or more embodiments, the first gate provided between the dry-wet conversion gate and the ambient air hall can be turned up and opened towards the ambient air hall side. Similarly, the second gate provided between the dry-wet conversion gate and the dry air hall can be turned up and opened towards the dry air hall side.

[0071] In one or more embodiments, the top surface of the track is flush with the floor surface of the upper layer of the transfer workshop.

[0072] In one or more embodiments, multiple model assembly rooms and low-temperature model transformation rooms can be provided on the lower layer of the transfer workshop. In some embodiments, a model access control room is further provided on the lower layer of the transfer workshop to control the opening and closing of the first and second gates and the humidity of the air in the dry-wet conversion gate.

[0073] In some preferred embodiments, as Figure 2 shown, an outdoor steel frame 18 is further provided outside the transfer workshop 3, and the track 328 extends to the upper surface of the outdoor steel frame 18. By providing the outdoor steel frame, the model hoisting device can be assembled and repaired outside the transfer workshop. Compared with the operation space inside the transfer workshop, it is larger, which is beneficial to the rapid construction of large machinery, further improves the assembly and repair efficiency of the model hoisting device, and enhances the overall test efficiency of the system.

[0074] In some preferred embodiments, it further includes a chamber door cover hoisting device 327 capable of moving along the track 328. The chamber door cover hoisting device 327 is used to hoist the chamber door cover to close or open the chamber door 1011 between the test section and the dry air hall 323. By providing the chamber door cover hoisting device, the chamber door cover can be moved more quickly and safely, and the chamber door can be opened or closed, further improving the test efficiency.

[0075] In some preferred embodiments, as Figure 1As shown in the figure, a drying system plant 7 is provided on one side of the dry air hall 323, and a temperature control system plant 8 is provided on the other side of the dry air hall 323. Among them, the drying system plant 7 is used to reduce the dew point and carbon dioxide content of the air in the dry air hall 323, the wet-dry conversion gate 322, and the low-temperature model conversion room during system operation, and the temperature control system plant 8 is used to adjust the temperature in the low-temperature model conversion room during system operation. In one or more embodiments, the drying system plant 7 includes a high-pressure fan room 71, a second frequency converter room 72, a second power distribution room 73, a refrigeration station 74, and a drying equipment area 75, and the temperature control system plant 8 includes a temperature regulation machine room 81 and a third power distribution room 82.

[0076] In this embodiment, the transfer plant can be used to hoist model components between the model assembly room, the low-temperature model conversion room, and the test section. Moreover, the model assembly room connected to the ambient air hall allows staff to operate the model components at normal temperature before and during the test, while the low-temperature model conversion room connected to the dry air hall allows staff to debug the model components at low temperature during system operation. This not only improves the safety of operation but also greatly improves the test efficiency. Additionally, the model can be debugged in a timely manner during the test process, effectively improving the test effect.

[0077] In addition, by maintaining a low dew point and carbon dioxide content in the wet-dry conversion gate, the dry air hall, and the low-temperature model conversion room, it can be ensured that the surface of the low-temperature model components will not freeze / frost during transportation.

[0078]

Embodiment 2

[0079] Based on Embodiment 1, as Figures 1 to 3 shown, it further includes a test hall 2. The main structure 1 is arranged in the test hall 2. A compressor auxiliary system equipment area 213 and a compressor component storage area 214 are also arranged around the main structure 1 in the test hall 2. A water pump plant area 6 is arranged outside the test hall 2. The water pump plant area 6 includes a first frequency converter room 61, a first power distribution room 62, and a water pump room 63.

[0080] In this embodiment, the test hall 2 is used to install the main structure 1 of the test device. In some preferred embodiments, as Figure 1 shown, the test hall 2 includes an east hall area 21, a middle hall area 22, a west hall area 23, and a north hall area 24. Among them, a motor frequency converter room 211, a liquid nitrogen pipe trench 212, a compressor auxiliary system equipment area 213, and a compressor component storage area 214 are arranged in the east hall area 21, and a test device storage area 241, a gas distribution station equipment area 242, and a dry seal gas compressor equipment area 243 are arranged in the north hall area 24.

[0081] In some preferred embodiments, the test hall and the transfer workshop are arranged in a "T" shape. For example, the north side of the transfer workshop is connected to the test hall, and the lower area on the north side of the transfer workshop overlaps spatially with a part of the test hall, such as the central area of the test hall.

[0082] In one or more embodiments, measurement and control buildings 9 and auxiliary equipment buildings 10 are also arranged on the left and right sides of the transfer workshop. The measurement and control building 9 is a two-story building used to arrange functional rooms such as measurement and control rooms. The auxiliary equipment building 10 is also a two-story building used to arrange functional rooms for test auxiliary equipment.

[0083] In some preferred embodiments, as Figure 1 shown, the test hall 2, the vacuum pump room 4, and the exhaust tower sound insulation wall 5 are arranged in sequence from east to west; the nitrogen production station 12, the liquid nitrogen storage tank equipment area 13, the liquid nitrogen supply system workshop 11, the east area of the test hall 21, the temperature control system workshop 8, and the auxiliary equipment building 10 are arranged in sequence from north to south; the cooling tower equipment area 16, the water pump plant area 6, the north area of the hall 24, the west area of the test hall 23, the drying system workshop 7, and the measurement and control building 9 are arranged in sequence from north to south. This layout enables the power distribution system to be close to the main power-consuming loads such as motors, drying systems, and temperature regulation systems that account for more than 80% of the total power consumption of the entire test system.

[0084] In some preferred embodiments, the ambient air hall is respectively connected to the first to third model assembly rooms through hoisting holes I, II, and III. The dry air hall 323 is respectively connected to the first to third low-temperature model conversion rooms through hoisting holes IV, V, and VI. The enclosing wall of the low-temperature model conversion room reaches the lower surface of the floor of the dry air hall 323 in height.

[0085] In some preferred embodiments, as Figure 1 shown, it further includes a nitrogen production station 12. The liquid nitrogen produced by the nitrogen production station 12 is stored in the liquid nitrogen storage tank equipment area 13. The liquid nitrogen in the liquid nitrogen storage tank equipment area 13 is transported to the liquid nitrogen supply system workshop 11 and then transported to the main structure 1 through the liquid nitrogen trench 212, and / or the liquid nitrogen in the liquid nitrogen storage tank equipment area 13 is transported to the liquid nitrogen vaporization equipment area 14 to be vaporized into nitrogen and stored in the nitrogen storage tank equipment area 15. The nitrogen storage tank equipment area 15 is used to output nitrogen to the gas distribution platform equipment area 242. In one or more embodiments, the nitrogen production station 12 is independently arranged on the northeast side of the site. The liquid nitrogen storage tank equipment area 13, the liquid nitrogen supply system workshop 11 are arranged in sequence from north to south between the nitrogen production station and the test hall. The liquid nitrogen vaporization equipment area 14 is arranged on the west side of the liquid nitrogen storage tank equipment area 13, and the nitrogen storage tank equipment area 15 is arranged on the south side. The dry and sealed gas equipment area 17 is arranged on the north side of the test hall and the west side of the nitrogen storage tank equipment area, which not only makes rational use of the terrain conditions but also realizes the reasonable layout of process equipment.

[0086]

Embodiment 3

[0087] Based on the above embodiments, as Figure 4 shown, the model assembly room includes a model assembly area 802. The top of the model assembly area 802 communicates with the ambient air hall 321. A model loading area 805 is provided at the bottom of the model assembly area 802. In the model assembly area 802, there are a model component upper support frame 821 and a model component lower support steel column 822 for supporting the model component 330; a first guide pin 8215 is provided on the model component upper support frame 821, and the first guide pin 8215 matches the guide hole provided on the model component 330; at least two first guide sleeves 8220 are further provided on the model component upper support frame 821, and the at least two first guide sleeves 8220 form a limiting area for restricting the model component 330 to move only in the vertical direction.

[0088] In some embodiments, the top surface of the model component upper support frame for supporting the upper part of the model component is the top surface of a reinforced concrete beam, and a first embedded steel plate is embedded on the top surface, and a first adjustment steel plate is welded on the first embedded steel plate. In one or more embodiments, a buffer plate is further installed on the first adjustment steel plate, and the buffer plate is preferably made of polytetrafluoroethylene. In one or more embodiments, a buffer rubber block is further provided on the first adjustment steel plate to further reduce the impact on the model component upper support frame when the model component is hoisted and positioned.

[0089] In one or more embodiments, a first operation platform and a second operation platform are further provided outside the model component upper support frame to facilitate the staff to assemble and debug the upper part of the model component.

[0090] In some embodiments, a third adjustment steel plate is welded on the top surface of the model component lower support steel column. In one or more embodiments, a support block is further installed on the third adjustment steel plate, and the support block can be made of polytetrafluoroethylene.

[0091] In one or more embodiments, the model component upper support frame includes a two-layer frame structure. Among them, the first guide pin is provided on the top layer frame of the model component upper frame, and the first guide sleeve is provided on the bottom layer frame of the model component upper frame. In some preferred embodiments, a second embedded steel plate is provided on the upper surface of the bottom layer frame, a second adjustment steel plate is provided on the second embedded steel plate, and the first guide sleeve is provided on the second adjustment steel plate.

[0092] In some embodiments, a model loading area is further provided at the bottom of the model assembly area. The model loading area is an area lower than the ground and is mainly used for loading the model, such as hanging weights, etc.

[0093] [Example 4]

[0094] Based on the above embodiments, Figures 5 to 7 As shown, the low-temperature model conversion room includes an operation chamber installation well 904, the top of which is connected to the dry air hall 323, and a low-temperature model operation chamber 903 for placing a model assembly 330 is provided in the operation chamber installation well 904, an outer ring support frame 922, an inner ring support column 923, and a bottom support frame 921 for supporting the model assembly 330, and an inner insulation structure 951 is provided on the inner wall of the low-temperature model operation chamber 903; wherein, the low-temperature model operation chamber 903 includes a model assembly accommodating area 961, below which are provided a model operation room 927 and a model support plate accommodating area 928 that are interconnected, a vertical partition door 926 is provided between the model operation room 927 and the model support plate accommodating area 928, and a horizontal partition door 925 is provided between the model operation room 927 and the model assembly accommodating area 961.

[0095] In some preferred embodiments, a top support ring beam is provided on the top surface of the outer ring support frame, and a second guide pin is provided on the top support ring beam. The second guide pin matches the guide hole on the model assembly, so that when the model assembly is hoisted into the low-temperature model operation chamber, the matching between the second guide pin and the guide hole can be used to position the model assembly to the desired position. In some preferred embodiments, at least two second guide sleeves are also provided on the top surface of the second support beam of the outer ring support frame. When the model assembly enters the limiting zone formed by the multiple second guide sleeves, the inner side of each second guide sleeve contacts the outer wall of the model assembly, so that the model assembly can only move in the vertical direction, thereby improving the stability and safety of the model assembly during hoisting.

[0096] [Example 5]

[0097] Based on the above embodiment, a large-scale deep low temperature environment test method is provided, which comprises the following steps:

[0098] Assembling the model 34 in the model assembly room;

[0099] The model lifting device 326 lifts the assembled model assembly 330 from the model assembly room and moves it along the track 328 to the top of the test section of the main structure 1, and places the model assembly 330 into the test section;

[0100] When the model needs to be debugged during system operation, the model lifting device 326 lifts the model component 330 to be debugged, moves it along the track 328 to the top of the low-temperature model transformation room, and places the model component 330 to be debugged into the low-temperature model transformation room for debugging. After the debugging is completed, the model lifting device 326 lifts the debugged model component 330 to the test section.

[0101] In the present invention, the terms "first", "second", etc. (such as the first model assembly room, the second model assembly room, the first embedded steel plate, the second embedded steel plate, etc.) are only used to distinguish the corresponding components for the sake of clear description, and are not intended to limit any order or emphasize importance, etc. In addition, the term "connection" used in the present invention, without special explanation, can be directly connected or indirectly connected via other components.

[0102] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large-scale cryogenic environment test system, comprising a main structure (1), wherein the main structure (1) includes a resident chamber (101) provided with a test section, characterized in that, It further includes a transfer workshop (3), and the transfer workshop (3) includes a dry air hall (323) communicated with the test section. The dry air hall (323) is connected to an ambient air hall (321) through a dry-wet conversion gate (322). Among them, at least one low-temperature model conversion room is communicated with the bottom of the dry air hall (323), and at least one model assembly room is communicated with the bottom of the ambient air hall (321); A track (328) is further arranged in the transfer workshop (3), and a model hoisting device (326) capable of moving along the track (328) is arranged on the track (328). The model hoisting device (326) is used to hoist model components (330) to the test section, the low-temperature model conversion room, and the model assembly room; During the operation of the system, the dew point of the air in the dry-wet conversion gate (322), the dry air hall (323), and the low-temperature model conversion room is lower than -60°C, and the carbon dioxide content is lower than 10 ppm.

2. The large-scale cryogenic environment test system according to claim 1, wherein, An outdoor steel frame (18) is further arranged outside the transfer workshop (3), and the track (328) extends to the upper surface of the outdoor steel frame (18).

3. A large-scale deep low-temperature environment test system according to claim 1, characterized in that It further includes a chamber door cover hoisting device (327) capable of moving along the track (328). The chamber door cover hoisting device (327) is used to hoist the chamber door cover to close or open the chamber door (1011) between the test section and the dry air hall (323).

4. A large-scale cryogenic environment test system according to claim 1, characterized in that A dry system workshop (7) is arranged on one side of the dry air hall (323), and a temperature control system workshop (8) is arranged on the other side of the dry air hall (323). Among them, the dry system workshop (7) is used to reduce the dew point and carbon dioxide content of the air in the dry air hall (323), the dry-wet conversion gate (322), and the low-temperature model conversion room during the operation of the system, and the temperature control system workshop (8) is used to adjust the temperature in the low-temperature model conversion room during the operation of the system.

5. A large-scale cryogenic environment test system according to claim 4, characterized in that The dry system workshop (7) includes a high-pressure fan room (71), a second frequency converter room (72), a second power distribution room (73), a refrigeration station (74), and a dry equipment area (75). The temperature control system workshop (8) includes a temperature adjustment machine room (81) and a third power distribution room (82).

6. A large-scale cryogenic environment test system according to claim 1, characterized in that It further includes a test hall (2). The main structure (1) is arranged in the test hall (2). A compressor auxiliary system equipment area (213) and a compressor component storage area (214) are further arranged in the test hall (2) around the main structure (1). A water pump factory area (6) is arranged outside the test hall (2). The water pump factory area (6) includes a first frequency converter room (61), a first power distribution room (62), and a water pump house (63).

7. A large-scale deep low-temperature environment test system according to claim 1, characterized in that, It further includes a nitrogen production station (12). The liquid nitrogen produced by the nitrogen production station (12) is stored in the liquid nitrogen storage tank equipment area (13). The liquid nitrogen in the liquid nitrogen storage tank equipment area (13) is transported to the liquid nitrogen supply system workshop (11) and then transported to the main structure (1) through the liquid nitrogen pipe trench (212), and / or the liquid nitrogen in the liquid nitrogen storage tank equipment area (13) is transported to the liquid nitrogen vaporization equipment area (14) to be vaporized into nitrogen and stored in the nitrogen storage tank equipment area (15). The nitrogen storage tank equipment area (15) is used to output nitrogen to the gas distribution bench equipment area (242).

8. A large-scale cryogenic environment test system according to any one of claims 1 to 7, characterized in that The model assembly room includes a model assembly area (802). The top of the model assembly area (802) is connected to the ambient air hall (321). A model loading area (805) is provided at the bottom of the model assembly area (802). A model component upper support frame (821) and a model component lower support steel column (822) for supporting the model component (330) are arranged in the model assembly area (802). A first guide pin (8215) is arranged on the model component upper support frame (821), and the first guide pin (8215) matches the guide hole arranged on the model component (330). At least two first guide sleeves (8220) are further arranged on the model component upper support frame (821). The at least two first guide sleeves (8220) form a limiting area, and the limiting area is used to limit the model component (330) to move only in the vertical direction.

9. A large-scale cryogenic environment test system according to any one of claims 1 to 7, characterized in that The low-temperature model transformation room includes an operation chamber installation well (904). The top of the operation chamber installation well (904) is connected to the dry air hall (323). A low-temperature model operation chamber (903) for placing the model component (330), an outer ring support frame (922), an inner ring support column (923), and a bottom support frame (921) for supporting the model component (330) are arranged in the operation chamber installation well (904). An inner heat insulation structure (951) is arranged on the inner wall of the low-temperature model operation chamber (903). Among them, the low-temperature model operation chamber (903) includes a model component accommodation area (961). A model operation room (927) and a model support plate accommodation area (928) which are communicated with each other are arranged below the model component accommodation area (961). A vertical partition door (926) is arranged between the model operation room (927) and the model support plate accommodation area (928). A horizontal partition door (925) is arranged between the model operation room (927) and the model component accommodation area (961).

10. A large-scale cryogenic environment test method, characterized in that, Adopt a large-scale deep low-temperature environment test system as described in any one of claims 1 to 9. The test method includes the following steps: Assemble the model (34) in the model assembly room; The model lifting device (326) lifts the assembled model component (330) from the model assembly room, moves it along the track (328) to above the test section of the main structure (1), and places the model component (330) into the test section. When the model needs to be debugged during the operation of the system, the model hoisting device (326) hoists the model component (330) to be debugged, moves it along the track (328) to above the low-temperature model conversion room, puts the model component (330) to be debugged into the low-temperature model conversion room for debugging. After the debugging is completed, the model hoisting device (326) hoists the debugged model component (330) into the test section.

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