Outdoor flow field calibration device and equipment

Abstract

The utility model relates to the technical field of flow field calibration, in particular to an outdoor flow field calibration device and equipment, and the device comprises a test element and a frame assembly. The testing element comprises a pitot tube. The frame assembly comprises a frame tube, a tube clamp and a tube clamp guide rail. The frame pipe comprises a first strip-shaped hole and a second strip-shaped hole, the pipe clamp and the pipe clamp guide rail are arranged in the frame pipe, and the pipe clamp and the pipe clamp guide rail are detachably connected through a fastening structure; the tail end of the pitot tube is connected with the tube clamp, the front end of the pitot tube penetrates out of the frame tube through the first strip-shaped hole, and the second strip-shaped hole faces the fastening structure. The position of the pitot tube is simple and fast to adjust, so that the pitot tube can adapt to different flow field calibration requirements, the frame tube plays a role in protecting static pressure and dynamic pressure guide tubes of part of the pitot tube, the service life of the pressure guide tubes can be prolonged, the layout design of pipelines is more reasonable and more attractive, and the cost is reduced. The whole device is convenient to move, the center height is adjustable, and the device is more suitable for outdoor use scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow field calibration technology field especially relates to a kind of outdoor flow field calibration device and equipment. BACKGROUND

[0002] With the development of aero-engine industry, it is urgent to carry out large-scale crosswind test on outdoor open test bed to obtain the working characteristics of engine under different wind direction and wind speed, and to determine the ground working crosswind boundary of engine, so as to optimize the compatibility of inlet duct and engine, and provide protection for the safe operation of aircraft under crosswind conditions. The flow field range area provided by outdoor large-scale crosswind test equipment is very large, the outlet diameter can exceed 8 meters, the outlet wind speed can reach 25 meters per second, or even higher. When calibrating the flow field, calibration work needs to be carried out at certain specific positions away from the outlet of the crosswind test equipment.

[0003] Traditional flow field calibration device is usually applied in indoor environment, and its scale is small, which cannot meet the use requirements of outdoor large-scale flow field calibration. The main difficulties of outdoor flow field calibration device application include:

[0004] The calibration device is heavy, and can weigh more than 3 tons, which is difficult to move and adjust position. The calibration device is high, and can exceed 10 meters, with poor structural stability. The installation and adjustment of measuring elements (Pitot tube) are not only cumbersome and have poor adjustability, but also have high operation risk. The number of static pressure and dynamic pressure pressure pipes of measuring elements is large, and improper arrangement will interfere with the flow field, and the pressure pipes are prone to aging and failure in long-term open-air environment. UTILITY MODEL CONTENT

[0005] To solve at least the above technical problems in the prior art, the utility model provides an outdoor flow field calibration device and equipment.

[0006] The utility model provides an outdoor flow field calibration device, which comprises a test element and a frame assembly for supporting the test element. The test element comprises a Pitot tube, and the frame assembly comprises a frame tube, a tube clamp and a tube clamp guide rail. The frame tube comprises a first slot and a second slot arranged along the length direction of the frame tube. The tube clamp and the tube clamp guide rail are arranged in the frame tube, and the tube clamp and the tube clamp guide rail are detachably connected by a fastening structure. The end of the Pitot tube is connected to the tube clamp, and the front end of the Pitot tube passes through the first slot out of the frame tube. The second slot is arranged towards the fastening structure.

[0007] In some embodiments, the frame tube is a square tube, the first strip-shaped hole is arranged on the front end surface of the frame tube, and the second strip-shaped hole is arranged on the top end surface of the frame tube; the frame tube further comprises a third strip-shaped hole arranged along the length direction of the frame tube, and the third strip-shaped hole is used for mounting the pitot tube and the auxiliary pressure lead pipe of the pitot tube.

[0008] In some embodiments, the pipe clamp comprises an upper clamp part and a lower clamp part arranged in a superposed manner, and the upper clamp part and the lower clamp part are used for clamping the end of the pitot tube; the fastening structure comprises a fastening bolt, and the fastening bolt passes through the upper clamp part and the lower clamp part in sequence and is fastened and connected with the pipe clamp guide rail.

[0009] In some embodiments, the frame assembly further comprises a fairing, and the fairing comprises a windward tip surface, an upper surface and a lower surface; the upper surface and the lower surface are arranged in an inclined manner, and the upper surface and the lower surface are connected with the top end and the bottom end of the frame tube respectively.

[0010] In some embodiments, the frame tube comprises a horizontal tube and a vertical tube; the horizontal tube and the vertical tube are arranged in a cross shape, and the pipe clamp, the pipe clamp guide rail and the pitot tube are arranged on the horizontal tube and the vertical tube.

[0011] In some embodiments, the frame assembly is connected with a rack body, the rack body is used for supporting the frame assembly and the test element to a set height, the two ends of the frame tube are fixedly connected with the rack body, and the rack body is provided with a through hole in communication with the frame tube, and the auxiliary pressure lead pipe of the pitot tube is led out through the through hole.

[0012] In some embodiments, the rack body comprises an upper measuring rack and a lower measuring rack, and the frame assembly is arranged on the upper measuring rack; the bottom width of the lower measuring rack is greater than the top width, and the top end of the lower measuring rack is detachably connected with the bottom end of the upper measuring rack.

[0013] In some embodiments, the lower measuring rack is provided with a horizontal traction rack and a vertical traction rack; and / or the bottom of the lower measuring rack is provided with a wheel body structure with a self-locking function.

[0014] In some embodiments, the lower measuring rack further comprises a lifting structure; a plurality of lifting structures are arranged on the edges of the bottom of the lower measuring rack, and the lifting structures are used for adjusting the central height of the rack body.

[0015] The utility model discloses another aspect still provides a kind of outdoor flow field calibration equipment, including above-mentioned outdoor flow field calibration device.

[0016] The utility model provides a kind of outdoor flow field calibration device and equipment, the end of pitot tube is connected with pipe clamp, the end of pitot tube, pipe clamp and pipe clamp guide rail are all arranged in frame tube, when the position of pitot tube needs to be adjusted, unfasten fastening structure, by pipe clamp adjustment pitot tube to the position required, then, again using fastening structure pipe clamp is locked in current position and is attached on pipe clamp guide rail.The utility model technical scheme, the position adjustment of pitot tube is simple and fast, so that pitot tube can adapt to different flow field calibration requirements, and frame tube protects part pitot tube static pressure and dynamic pressure pressure lead pipe, can improve the service life of pressure lead pipe, and the layout design of pipeline is more reasonable, more beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the present exemplary embodiments will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example in which:

[0018] In the drawings, identical or corresponding numbers refer to identical or corresponding parts.

[0019] Figure 1 Structure schematic view of outdoor flow field calibration device provided by the utility model embodiment is provided;

[0020] Figure 2 Structure schematic view of upper measuring frame in outdoor flow field calibration device provided by the utility model embodiment is provided;

[0021] Figure 3 Structure schematic view of frame assembly in outdoor flow field calibration device provided by the utility model embodiment is provided;

[0022] Figure 4 Structure schematic view at frame tube in outdoor flow field calibration device provided by the utility model embodiment is provided;

[0023] Figure 5 Structure schematic view at pipe clamp and pipe clamp guide rail in outdoor flow field calibration device provided by the utility model embodiment is provided;

[0024] Figure 6 Sectional view of frame assembly in outdoor flow field calibration device provided by the utility model embodiment is provided.

[0025] In the drawings:

[0026] 10: test element;20: frame assembly;30: upper measuring frame;40: lower measuring frame;

[0027] 21: frame pipe; 211: first strip hole; 212: second strip hole; 213: transverse pipe; 214: vertical pipe; 215: third strip hole; 22: pipe clamp; 221: upper clamp part; 222: lower clamp part; 23: pipe clamp guide rail; 24: fastening structure; 25: fairing; 26: fastening nut;

[0028] 31: perforation;

[0029] 41: transverse traction frame; 42: longitudinal traction frame; 43: wheel body structure; 44: lifting structure. DETAILED DESCRIPTION

[0030] In order to make the purpose, characteristics and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model embodiments will be clearly and completely described below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] The utility model embodiment provides a kind of outdoor flow field calibration device, including frame body, frame body includes upper measuring frame and lower measuring frame, test element and frame assembly are set on upper measuring frame;Upper measuring frame and lower measuring frame are detachably connected, it is not necessary for the adjustment of test element Long time high-altitude work, and for the adjustment of pitot tube simple and fast, it can satisfy the flow field calibration needs of outdoor large-scale crosswind test equipment.

[0032] The various structures of the outdoor flow field calibration device provided by the utility model embodiments, the positional relationship and connection relationship between the structures will be described in detail below in combination with the drawings.

[0033] As Figures 1 to 6 Indicated in the utility model embodiment, outdoor flow field calibration device includes frame body, frame body includes upper measuring frame 30 and lower measuring frame 40, upper measuring frame 30 and lower measuring frame 40 have certain height, can satisfy outdoor flow field calibration.

[0034] Among them, frame assembly 20 and test element 10 are arranged on upper measuring frame 30;Upper measuring frame 30 and lower measuring frame 40 are detachably connected, when installing or debugging test element 10 etc., upper measuring frame 30 is removed from lower measuring frame 40, and then the height of frame assembly 20 and test element 10 supported can be reduced, to avoid long time high-altitude work of staff, and can ensure the installation accuracy of test element 10.

[0035] For example, the top of the lower measuring frame 40 is a supporting plane, and the bottom of the upper measuring frame 30 is a mounting plane; when assembling, the two parts are stacked and then fixedly connected; when the upper measuring frame 30 is removed, the mounting plane can be placed on a horizontal plane to ensure that the upper measuring frame 30 is stably placed.

[0036] In the embodiments of the utility model, the detachable connection mode of the upper measuring frame 30 and the lower measuring frame 40 is not limited, for example, the upper measuring frame 30 and the lower measuring frame 40 can be connected through bolt connection, riveting or the like.

[0037] For example, the lower measuring frame 40 is built through a plurality of steel trusses; the bottom of the lower measuring frame 40 has a trapezoidal structure with a width greater than that of the top; this structure can increase the stability of the lower measuring frame 40 and the overall stability of the frame body, preventing the flow field calibration device from toppling during movement.

[0038] For example, the two sides of the lower measuring frame 40 are respectively provided with moving structures or lifting structures 44, and no other functional structural members are arranged at the bottom of the lower measuring frame 40; in addition, the bottom of the lower measuring frame 40 is spaced apart from the plane on which the lower measuring frame 40 is located by a set interval, for example, the interval height is 200-400 mm; the interval space can improve the passability of the flow field calibration device during movement and facilitate the device to cross obstacles on the plane on which the frame body is located.

[0039] In the embodiments of the utility model, the frame body is heavy and not easy to move; therefore, an independent traction structure can be arranged on the lower measuring frame 40; a traction device is connected to the traction structure, facilitating the movement of the frame body; in addition, a wheel body structure 43 is arranged at the bottom of the lower measuring frame 40; the wheel body structure 43 cooperates with the traction device to facilitate the movement operation of the frame body. The pre-set traction structure is selected to be located at a reasonable position, for example, at the middle position of the connected side; during traction operation, the frame body tends to be stable, and the difficulty of moving the frame body is reduced.

[0040] For example, the lower measuring frame 40 is provided with a horizontal traction frame 41 and a vertical traction frame 42; the horizontal traction frame 41 is a horizontal moving force point, and the vertical traction frame 42 is a vertical moving force point. The horizontal traction frame 41 and the vertical traction frame 42 are fixedly connected to the lower measuring frame 40 and are provided with connection structures such as traction rings or traction rods thereon.

[0041] For example, the bottom of the lower measuring frame 40 is provided with a wheel body structure 43 having a self-locking function. When movement is required, the wheel body structure 43 is unlocked, and the traction device is used to move the outdoor flow field calibration device. For example, the wheel body structure 43 is a universal wheel, which has higher rotation flexibility.

[0042] Through cooperation of the traction frame and the wheel body structure 43, the outdoor flow field calibration device can be moved more simply by means of a tool such as a tractor, and effectively solves the problem that the large outdoor flow field calibration device itself is difficult to move and adjust position due to its large self weight.

[0043] In the embodiment of the utility model, the lower measuring frame 40 further comprises a lifting structure 44; a plurality of lifting structures 44 are arranged at the edge of the bottom of the lower measuring frame 40, and the lifting structures 44 are used to adjust the central height of the frame body.

[0044] For example, the lifting structure 44 is a jack, a plurality of jacks are arranged at the bottom of the lower measuring frame 40, and the height of the local frame body can be adjusted through the extension and retraction of the jacks; for example, the jacks are arranged at the four corners of the lower measuring frame 40, wherein the extension length of the jacks can be selected according to the adjustment range of the central height. When the jacks are not in use, they are in a retracted state and do not contact the ground, and the wheel body structure 43 of the lower measuring frame 40 contacts the ground; when the jacks are in use, they are in an extended state, and the length is determined according to the adjustment requirement of the central height; after extension, the jacks contact the ground, and further extension can adjust the height.

[0045] Continuing to refer to Figures 1 to 6 As shown in the figure, the test element 10 comprises a pitot tube, the frame assembly 20 comprises a frame tube 21, a tube clamp 22 and a tube clamp guide rail 23; the frame assembly 20 is arranged on the upper measuring frame 30 in a set form. For example, the frame tube 21 comprises a horizontal tube 213 and a vertical tube 214; the horizontal tube 213 and the vertical tube 214 are arranged in a cross shape, and the horizontal tube 213 and the vertical tube 214 are both provided with the tube clamp 22, the tube clamp guide rail 23 and the pitot tube.

[0046] For example, the upper measuring frame 30 comprises a plurality of sectional steels, and the frame tube 21 is installed on the upper measuring frame 30 assembled by the sectional steels.

[0047] A plurality of groups of the tube clamp 22, the tube clamp guide rail 23 and the pitot tube are arranged on the horizontal tube 213 and the vertical tube 214 for flow field calibration. In order to adapt to different flow field calibration requirements, the position of the pitot tube needs to be finely adjusted.

[0048] In the embodiment of the utility model, the frame tube 21 comprises a first strip hole 211 and a second strip hole 212 arranged along the length direction of the frame tube 21, the tube clamp 22 and the tube clamp guide rail 23 are arranged in the frame tube 21, and the tube clamp 22 and the tube clamp guide rail 23 are detachably connected through a fastening structure 24; the tail end of the pitot tube is connected with the tube clamp 22, the front end of the pitot tube passes out of the frame tube 21 through the first strip hole 211, and the second strip hole 212 is arranged towards the fastening structure 24.

[0049] When the position adjustment is needed, the fastening structure 24, for example, the bolt, is unlocked from the pipe clamp 22 and the pipe clamp guide rail 23 through the second strip-shaped hole 212, and the screwdriver is inserted into the frame pipe 21 through the second strip-shaped hole 212 to rotate the bolt. After the unlocking, the pipe clamp 22 can be moved relative to the pipe clamp guide rail 23, and after being moved to the required position, the fastening structure 24 is locked again to complete the position adjustment of the pipe clamp 22 and the pitot tube.

[0050] For example, the frame pipe 21 is a square pipe, the first strip-shaped hole 211 is arranged on the front end surface of the frame pipe 21, and the second strip-shaped hole 212 is arranged on the top end surface of the frame pipe 21; the frame pipe 21 further comprises a third strip-shaped hole 215 arranged along the length direction of the frame pipe 21, and the third strip-shaped hole 215 is used for mounting the pitot tube and the auxiliary pressure lead pipe of the pitot tube.

[0051] When the pitot tube is mounted, the pitot tube and the auxiliary pressure lead pipe of the pitot tube enter the frame pipe 21 through the third strip-shaped hole 215, and the end of the pitot tube is inserted out of the first strip-shaped hole 211, and then the end of the pitot tube is connected with the pipe clamp 22.

[0052] For example, the pipe clamp 22 comprises an upper clamp portion 221 and a lower clamp portion 222 arranged in a stack, and the upper clamp portion 221 and the lower clamp portion 222 are used for clamping the end of the pitot tube. When the upper clamp portion 221 and the lower clamp portion 222 are clamped, the end of the pitot tube is further limited.

[0053] For example, the bolt is arranged between the upper clamp portion 221 and the lower clamp portion 222, and the clamping operation between the upper clamp portion 221 and the lower clamp portion 222 is realized by rotating the bolt.

[0054] In the embodiment of the utility model, the pipe clamp guide rail 23 comprises a sliding rail arranged along the length direction of the frame pipe 21, and the bottom of the pipe clamp 22 is detachably connected with the sliding rail; the fastening structure 24 comprises a fastening bolt, and the fastening bolt is sequentially inserted through the upper clamp portion 221 and the lower clamp portion 222 and is fastened with the pipe clamp guide rail 23.

[0055] For example, the tightening and loosening of the pipe clamp 22 and the fastening of the pipe clamp 22 to the slide rail can be completed by the same fastening bolt. For example, the pipe clamp guide rail 23 is a C-shaped steel pipe structure, the C-shaped steel pipe is hollow inside and includes an opening with a certain width, the opening is the slide rail structure of the pipe clamp guide rail 23, a fastening nut 26 is arranged inside the C-shaped steel pipe, the fastening nut 26 is long strip-shaped, when the length of the fastening nut 26 is arranged along the length of the opening, the fastening nut 26 can be taken out from the opening, and when the length of the fastening nut 26 is not arranged along the length of the opening, the fastening nut 26 is clamped with the inner wall of the opening, the end of the fastening bolt is connected with the fastening nut 26 through the opening, and in the tightened state, the fastening nut 26 and the bottom of the bottom of the pipe clamp 22 are clamped on both sides of the opening, so that the pipe clamp 22 is fixed on the C-shaped steel pipe, when the position of the pipe clamp 22 needs to be adjusted, the fastening bolt is loosened, and the fastening nut 26 does not need to be separated, after the clamping is released, the pipe clamp 22 can be moved.

[0056] In the embodiment of the utility model, the frame assembly 20 further comprises a fairing 25, the fairing 25 comprises a windward tip surface, an upper surface and a lower surface; the upper surface and the lower surface are arranged obliquely, and the upper surface and the lower surface are connected with the top end and the bottom end of the frame pipe 21 respectively; for example, the included angle of the windward tip surface is 30 degrees.

[0057] The front end of the pitot tube penetrates the windward end, screw holes are arranged at the top and the bottom of the frame pipe 21 respectively, and the upper surface and the lower surface are fixedly connected with the frame pipe 21 through the screw holes. For example, the screw selected for fixed connection is a round head screw, so as to reduce the disturbance to the airflow, and the fairing 25 can be a whole structure or a segmented split structure.

[0058] In the embodiment of the utility model, the two ends of the frame pipe 21 are fixedly connected with a frame body, and the frame body is provided with a through hole 31 in communication with the frame pipe 21, and the auxiliary pressure lead pipe of the pitot tube, i.e. the static pressure and dynamic pressure lead pipes of the pitot tube, are led out through the through hole 31, wherein the frame pipe 21 is connected to the upper measuring frame 30 of the frame body. The led-out static pressure and dynamic pressure lead pipes of the pitot tube are connected to a position close to the ground along the upper measuring frame 30 and the lower measuring frame 40 for convenient operation, so as to facilitate the connection of the pressure sensor for flow field calibration. For example, the position of the through hole 31 on the frame body is the same height as the center of the transverse pipe 213, the frame pipe 21 has a protection effect on the lead pipe, which can effectively avoid the aging problem of the lead pipe under outdoor use conditions, in addition, part of the lead pipe is arranged along the frame body, which can ensure that the lead pipe is firmly installed and can avoid disorderly distribution.

[0059] The embodiment of the utility model provides an outdoor flow field calibration device, which comprises the above-mentioned outdoor flow field calibration device. The outdoor flow field calibration device is placed in an outdoor scene, and the pitot tube is used to obtain the required wind speed, wind pressure and other information.

[0060] The utility model provides a kind of outdoor flow field calibration device and equipment, frame body includes separable upper measuring frame 30 and lower measuring frame 40, upper measuring frame 30 can be adjusted to pitot tube in flat state, pitot tube is installed adjustment in place, after whole hoisting upper measuring frame 30 and lower measuring frame 40 fixed connection, this structure form effectively reduces the installation difficulty of large flow field calibration device, avoids a lot of high-altitude work, can also guarantee the position accuracy of pitot tube simultaneously;

[0061] By setting transverse traction frame 41, longitudinal traction frame 42 and universal wheel, the movement and accurate position adjustment of large flow field calibration device can be carried out by means of tractor and other tools, the problem that the large flow field calibration device itself is difficult to move and adjust position due to its large weight is solved;

[0062] By setting jack at four corner points of lower measuring frame 40, the flexible adjustment of the center height of large flow field calibration device can be realized;

[0063] The position of pitot tube can be flexibly adjusted, and different flow field calibration requirements can be adapted by simple adjustment;And by placing the static pressure and dynamic pressure pressure lead pipes of pitot tube inside frame pipe 21 and leading out from the side of upper measuring frame 30 to connect to the ground, the service life of pressure lead pipe can be greatly improved, and the whole is neat and beautiful.

[0064] In the description of the present specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0065] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited.

[0066] The above merely illustrates the specific implementation manners of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An outdoor flow field calibration device, characterized in that, The test element (10) comprises a pitot tube, and the frame assembly (20) comprises a frame tube (21), a tube clamp (22) and a tube clamp guide rail (23); The frame tube (21) comprises a first slot (211) and a second slot (212) arranged along the length direction of the frame tube (21), the tube clamp (22) and the tube clamp guide rail (23) are arranged in the frame tube (21), and the tube clamp (22) and the tube clamp guide rail (23) are detachably connected through a fastening structure (24); The end of the pitot tube is connected with the tube clamp (22), and the front end of the pitot tube passes through the first slot (211) of the frame tube (21), and the second slot (212) is arranged towards the fastening structure (24). The frame tube (21) is a square tube, the first slot (211) is arranged on the front end surface of the frame tube (21), and the second slot (212) is arranged on the top end surface of the frame tube (21); 2. The outdoor flow field calibration device of claim 1, wherein, The frame tube (21) further comprises a third slot (215) arranged along the length direction of the frame tube (21), and the third slot (215) is used for mounting the pitot tube and an auxiliary pressure lead pipe of the pitot tube. The tube clamp (22) comprises an upper clamp portion (221) and a lower clamp portion (222) arranged in layers, and the upper clamp portion (221) and the lower clamp portion (222) are used for clamping the end of the pitot tube; 3. The outdoor flow field calibration device of claim 2, wherein, The fastening structure (24) comprises a fastening bolt, the fastening bolt passes through the upper clamp portion (221) and the lower clamp portion (222) in sequence and is fastened with the tube clamp guide rail (23). The frame assembly (20) further comprises a flow deflector (25), and the flow deflector (25) comprises a windward tip surface, an upper surface and a lower surface; 4. The outdoor flow field calibration device of claim 1, wherein, The upper surface and the lower surface are arranged in an inclined manner, and the upper surface and the lower surface are connected with the top end and the bottom end of the frame tube (21) respectively. The frame tube (21) comprises a horizontal tube (213) and a vertical tube (214); 5. The outdoor flow field calibration device of claim 4, wherein, The horizontal tube (213) and the vertical tube (214) are arranged in a cross shape, and the tube clamp (22), the tube clamp guide rail (23) and the pitot tube are arranged on the horizontal tube (213) and the vertical tube (214). Further comprising a rack, the frame assembly (20) is connected with the rack, and the rack is used for supporting the frame assembly (20) and the test element (10) to a set height; 6. The outdoor flow field calibration device of claim 2, wherein, Both ends of the frame tube (21) are fixedly connected with the rack, and a through hole (31) in communication with the frame tube (21) is arranged on the rack, and an auxiliary pressure lead pipe of the pitot tube is led out through the through hole (31). The rack comprises an upper measurement rack (30) and a lower measurement rack (40), and the frame assembly (20) is arranged on the upper measurement rack (30).

7. The outdoor flow field calibration device of claim 6, wherein, ​ The bottom width of the lower measuring frame (40) is greater than the top width, and the top end of the lower measuring frame (40) is detachably connected with the bottom end of the upper measuring frame (30).

8. The outdoor flow field calibration device of claim 7, wherein, The lower measuring frame (40) is provided with a transverse traction frame (41) and a longitudinal traction frame (42); and / or The bottom of the lower measuring frame (40) is provided with a wheel body structure (43) with a self-locking function.

9. The outdoor flow field calibration device of claim 7, wherein, The lower measuring frame (40) further comprises a lifting structure (44); The edges of the bottom of the lower measuring frame (40) are provided with a plurality of lifting structures (44), which are used to adjust the central height of the frame body.

10. An outdoor flow field calibration apparatus, characterized by, The outdoor flow field calibration device comprises the outdoor flow field calibration device according to any one of claims 1 to 9.

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