Surface wind speed uniformity testing device

Abstract

The utility model relates to a surface air speed uniformity testing device, which comprises a control mechanism, a testing mechanism, an air volume compensation mechanism and a bearing mechanism, and is characterized in that the testing mechanism, the air volume compensation mechanism and the bearing mechanism are electrically connected with the control mechanism; the bearing mechanism comprises a bearing part and a driving assembly used for driving the bearing part to ascend and descend, the bearing part is used for bearing a to-be-tested piece, the driving assembly is electrically connected with the control mechanism, and the output end of the air volume compensation mechanism faces the windward side of the bearing part. Compensating the air volume of the air outlet surface of the to-be-tested piece; the test end of the test mechanism is located below the air outlet surface of the to-be-tested piece, and the test mechanism is used for carrying out surface wind speed uniformity test on the to-be-tested piece on the bearing piece according to the test signal output by the control mechanism. And the test efficiency and the test accuracy can be improved.

Description

Technical Field

[0001] The present application relates to the field of clean room testing technology, and in particular to a surface wind speed uniformity testing device. Background Art

[0002] A fan filter unit (FFU) is a common terminal air purification device with a built-in fan in clean rooms. It is widely used in biotechnology research and development, semiconductor technology, precision instrument manufacturing and the medical industry. Its function is to draw air from the top and filter it through a high-efficiency filter. The filtered clean air is evenly delivered from the air outlet to ensure that the cleanliness of the clean area meets production and R&D requirements.

[0003] Among the various test parameters specified in the standard, surface air velocity uniformity is one of the most important test items, which directly affects whether there is turbulence and turbulence in the clean area and determines the cleanliness level of the clean area. At present, the industry's detection method for this project is mainly based on the T / CRAA 435-2020 standard. However, the existing test method based on the T / CRAA 435-2020 standard has the following deficiencies: On the one hand, the standard stipulates that the FFU under test is fixed vertically on the test table, but the FFUs actually used in clean rooms are mostly placed horizontally above the clean area, and thus the test results of the surface air velocity uniformity test table cannot reflect the actual operating status of the FFU; on the other hand, due to the large number of measurement points, the measurement time is long and the measurement efficiency is low. Furthermore, the existing detection method does not implement an automated test device for surface air velocity uniformity testing. Utility Model Content

[0004] In order to solve the problems of the prior art, the present application provides a technical solution for a surface wind velocity uniformity testing device, that is, the present application sets a control mechanism, a testing mechanism, an air volume compensation mechanism and a supporting mechanism, so that the air volume compensation mechanism can compensate the air volume on the air outlet surface of the test piece according to the air volume control signal output by the control mechanism, and uses the testing mechanism to perform a surface wind velocity uniformity test on the test piece on the supporting member according to the test signal output by the control mechanism, so as to realize an automated surface wind velocity uniformity testing process and improve the testing efficiency. Furthermore, by setting a supporting member, the test piece to be tested can be carried by the supporting member, so as to meet the requirements of horizontal placement testing of the test piece to be tested, fully simulate the actual use conditions of the test piece to be tested, and thus improve the test accuracy.

[0005] The present application provides a surface wind speed uniformity testing device, which includes a control mechanism, a testing mechanism, an air volume compensation mechanism, and a bearing mechanism, wherein the testing mechanism, the air volume compensation mechanism, and the bearing mechanism are all electrically connected to the control mechanism;

[0006] The carrying mechanism includes a carrying member and a driving assembly for driving the carrying member to rise and fall, the carrying member being used to carry the test piece, the driving assembly being electrically connected to the control mechanism, the output end of the air volume compensation mechanism being arranged toward the windward surface of the carrying member, and the air volume compensation mechanism being used to compensate for the air volume on the air outlet surface of the test piece according to the air volume control signal output by the control mechanism;

[0007] The testing end of the testing mechanism is located below the air outlet surface of the test piece, and the testing mechanism is used to perform a surface wind speed uniformity test on the test piece on the carrier according to the test signal output by the control mechanism.

[0008] Furthermore, the testing mechanism includes a first axial movable track, a second axial movable track, a third axial movable track, a wind speed test piece and an axial support bracket;

[0009] The first axial movable track, the second axial movable track and the third axial movable track are perpendicular to each other, the second axial movable track is arranged parallel to the axial support bracket, the first axial movable track is slidably connected to the first end of the axial support bracket, the second end of the axial support bracket is fixedly connected to the end of the third axial movable track, the second axial movable track is arranged on the third axial movable track and is slidably connected to the third axial movable track, and the wind speed test piece is arranged on the second axial movable track;

[0010] A first driving member is provided on the first axial moving track, and the driving end of the first driving member is connected to the axial support bracket. The first driving member is used to drive the axial support bracket to move axially along the first axial moving track. A second driving member is provided on the third axial moving track, and the driving end of the second driving member is connected to the second axial moving track. The second driving member is used to drive the second axial moving track to move axially along the third axial moving track. A third driving member is provided on the second axial moving track, and the driving end of the third driving member is connected to the wind speed test piece. The third driving member is used to drive the wind speed test piece to move axially along the second axial moving track.

[0011] Furthermore, the wind speed test piece includes a first wind speed test probe and a second wind speed test probe arranged in parallel, the detection end of the first wind speed test probe and the detection end of the second wind speed test probe both extend along the axial direction of the second axial movable track and extend out of the second axial movable track, and the fixed end of the first wind speed test probe and the fixed end of the second wind speed test probe are respectively fixed on both sides of the second axial movable track.

[0012] Furthermore, the air volume compensation mechanism includes an air volume output adjustment component, an air volume measurement adjustment component, an air volume measurement component, an air volume transmission pipeline, a transmission pipeline stabilization component and a static pressure box;

[0013] The output end of the air volume output regulating member is connected to the air inlet of the air volume transmission pipe, and the air outlet of the air volume transmission pipe is provided with the static pressure box, and the static pressure box is used to match the bearing member;

[0014] The air volume measurement and adjustment control unit and the air volume measurement component are both arranged in the air volume transmission pipeline, and the transmission pipeline stabilizing component is fixedly connected to the outer side wall of the air volume transmission pipeline.

[0015] Furthermore, the transmission pipeline stabilizing assembly includes a plurality of transmission pipeline stabilizing mechanisms, and the plurality of transmission pipeline stabilizing mechanisms are parallel to each other;

[0016] The transmission pipe stabilizing mechanism includes a horizontal state adjusting part and a hanging stabilizing part. The horizontal state adjusting part is arranged on the outer side wall of the air volume transmission pipe. The side of the horizontal state adjusting part away from the air volume transmission pipe is connected to one end of the hanging stabilizing part, and the other end of the hanging stabilizing part is used to be connected to an external fixed object.

[0017] Furthermore, a connecting piece is provided at the air inlet of the air volume transmission pipe, and the air volume transmission pipe is connected to the output end of the air volume output adjustment component through the connecting piece. A flow equalizing plate is provided in the air volume transmission pipe, and the flow equalizing plate is arranged between the connecting piece and the air volume measurement adjustment component.

[0018] Furthermore, the output end of the air volume measuring component is provided with a cover, the control end of the air volume measuring control unit is connected to the cover, and the air volume measuring control unit is used to control the opening and closing between the cover and the output port of the air volume measuring component.

[0019] Furthermore, the driving assembly includes a lifting driving member, the driving end of the lifting driving member is connected to the supporting member, and the control end of the lifting driving member is connected to the control mechanism. The control mechanism is used to control the lifting and lowering of the lifting driving member. The lifting and lowering of the lifting driving member can drive the supporting member to move up and down. When the supporting member moves upward a first distance, part of the structure of the supporting member is fitted with the bottom of the static pressure box through a sealing member.

[0020] Furthermore, the air volume compensation mechanism also includes a pressure difference detection device and a pressure measuring pipe. The control end of the pressure difference detection device is connected to the control mechanism, and the measuring end of the pressure difference detection device is connected to the static pressure box through the pressure measuring pipe. The pressure measuring pipe extends into the static pressure box at one end away from the pressure difference detection device.

[0021] Furthermore, the lifting drive members include four, and the connection line between every two adjacent lifting drive members among the four lifting drive members forms a rectangular structure.

[0022] The implementation of this application has the following beneficial effects:

[0023] The present application sets up a control mechanism, a testing mechanism, an air volume compensation mechanism and a supporting mechanism, so that the air volume compensation mechanism can compensate the air volume on the air outlet surface of the test piece according to the air volume control signal output by the control mechanism, and uses the testing mechanism to perform a surface wind speed uniformity test on the test piece on the supporting member according to the test signal output by the control mechanism, so as to realize an automated surface wind speed uniformity test process and improve the test efficiency. Furthermore, by setting up a supporting member, the support member can be used to carry the test piece to meet the requirements of horizontal placement test of the test piece to be tested, fully simulating the actual use conditions of the test piece to be tested, thereby also improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solution of this application, the following briefly introduces the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0025] Figure 1 A schematic structural diagram of a surface wind speed uniformity testing device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of a structure for measuring air volume provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the structure of the test mechanism provided in the embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of the supporting mechanism provided in an embodiment of the present application;

[0029] : Among them, the figure marks correspond to: 1-control mechanism; 2-test mechanism; 21-first axial movable track; 22-axial support bracket; 23-third axial movable track; 24-wind speed test piece; 241-first wind speed test probe; 242-second wind speed test probe; 25-first drive member; 26-second drive member; 27-third drive member; 28-second axial movable track; 31-air volume output adjustment member; 32-air volume measurement adjustment member; 33-air volume measurement member; 34-air volume transmission pipeline; 35-transmission pipeline stabilizing assembly; 351-horizontal state adjustment member; 352-suspension stabilizing member; 36-static pressure box; 37-pressure difference detection device; 38-pressure measuring pipeline; 39-flow equalizing plate; 41-connecting member; 42-cover body; 51-bearing member; 52-drive assembly; 521-lifting drive member; 6-piece to be tested; 7-wind speed sensor; 8-air filter; 9-baffle. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] It should be noted that, in this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or mutual communication; direct connections, indirect connections through an intermediate medium, and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] Hereinafter, embodiments will be described with reference to the accompanying drawings, which do not limit the disclosure described in the claims.

[0033] See also Figures 1 to 4 , combined with Figures 1 to 4 A surface wind speed uniformity testing device provided in an embodiment of the present application is described in detail.

[0034] The embodiment of the present application provides a surface wind speed uniformity testing device, such as Figures 1 to 4 As shown, specifically, the surface wind speed uniformity testing device includes a control mechanism 1, a testing mechanism 2, an air volume compensation mechanism and a carrying mechanism, wherein the testing mechanism 2, the air volume compensation mechanism and the carrying mechanism are all electrically connected to the control mechanism 1;

[0035] Specifically, the supporting mechanism includes a supporting member 51 and a driving assembly 52 for driving the supporting member 51 to rise and fall. The supporting member 51 is used to carry the test piece 6. The driving assembly 52 is electrically connected to the control mechanism 1. The output end of the air volume compensation mechanism is set toward the windward surface of the supporting member 51. The air volume compensation mechanism is used to compensate for the air volume on the air outlet surface of the test piece 6 according to the air volume control signal output by the control mechanism 1; the test end of the test mechanism is located below the air outlet surface of the test piece, and the test mechanism 2 is used to perform a surface wind velocity uniformity test on the test piece 6 on the supporting member 51 according to the test signal output by the control mechanism 1.

[0036] In an embodiment of the present application, the control mechanism 1 is used to control the specific operations corresponding to the testing mechanism 2, the air volume compensation mechanism and the supporting mechanism. In a specific embodiment, the control mechanism 1 can output an air volume control signal to the air volume compensation mechanism, so that the air volume compensation mechanism compensates the air volume of the air outlet surface of the test piece 6 according to the air volume control signal, so that the static pressure box maintains the operating point pressure difference required by the test piece to be tested, so as to realize automatic air volume compensation adjustment. Furthermore, the control mechanism 1 can also output a test signal to the testing mechanism 2, so that the testing mechanism 2 performs a surface wind velocity uniformity test on the test piece 6 on the supporting member 51 according to the test signal, thereby realizing an automated surface wind velocity uniformity test process, thereby improving the test efficiency.

[0037] In a specific embodiment, the test piece 6 can be placed horizontally on the carrier 51, thereby meeting the requirement of horizontal placement testing of the test piece 6, fully simulating the actual operating conditions of the test piece 6, and thus improving the test accuracy, wherein the test piece 6 can be a fan filter unit.

[0038] In actual applications, the supporting member 51 includes a supporting platform with a rectangular structure and a bracket for supporting the supporting platform, wherein the number of the brackets is 4, and the 4 brackets are respectively located at the four corners of the supporting platform, thereby improving the stability of the supporting platform.

[0039] In a specific embodiment, an air filter 8 is provided on the side of the carrier 51 away from the driving assembly 52, and a baffle 9 is provided on the side of the carrier 51 close to the driving assembly 52, which is used to simulate the actual operating conditions of the test piece according to the standard to prevent external airflow from interfering with the test probe.

[0040] In an optional embodiment, if Figure 1 and Figure 3As shown, the test mechanism 2 includes a first axial movable track 21, a second axial movable track 28, a third axial movable track 23, a wind speed test piece 24 and an axial support bracket 22; wherein, the first axial movable track 21, the second axial movable track 28 and the third axial movable track 23 are perpendicular to each other, the second axial movable track 28 is arranged parallel to the axial support bracket 22, the first axial movable track 21 is slidably connected to the first end of the axial support bracket 22, the second end of the axial support bracket 22 is fixedly connected to the end of the third axial movable track 23, the second axial movable track 28 is arranged on the third axial movable track 23, and is slidably connected to the third axial movable track 23, the wind speed test piece 24 is arranged on the second axial movable track The third axial moving track 23 is provided with a second driving member 26, and the driving end of the second driving member 26 is connected to the second axial moving track 28. The second driving member 26 is used to drive the second axial moving track 28 to move axially along the third axial moving track 23. The second axial moving track 28 is provided with a third driving member 27, and the driving end of the third driving member 27 is connected to the wind speed test piece 24. The third driving member 27 is used to drive the wind speed test piece 24 to move axially along the second axial moving track 28.

[0041] In the embodiment of the present application, the axial direction of the first axial movable rail 21 can be the x-axis direction, the axial direction of the second axial movable rail 28 can be the z-axis direction, and the axial direction of the third axial movable rail 23 can be the y-axis direction, and then by slidingly connecting the first axial movable rail 21 with the first end of the axial support bracket 22, the second end of the axial support bracket 22 is fixedly connected to the end of the third axial movable rail 23, the second axial movable rail 28 is set on the third axial movable rail 23, and is slidingly connected to the third axial movable rail 23, the wind speed test piece 24 is set on the second axial movable rail 28, so that the first driving member 25 on the first axial movable rail 21, the second driving member 26 on the third axial movable rail 23 and the third driving member 27 on the second axial movable rail 28 can be used to drive the relative movement between the axial support bracket 22, the second axial movable rail 28 and the wind speed test piece 24 respectively, and then the wind speed test piece 24 can be driven to move in multiple directions and angles, thereby realizing a comprehensive surface wind speed uniformity test, making the test results more accurate and stable.

[0042] In actual applications, the control mechanism 1 can be a host computer. Specifically, the host computer can have an automated test program that meets the standard requirements, and then the mode switching of different operating points can be realized through the automated test program, and the original data can be automatically recorded and the wind speed distribution cloud map can be output, so that the wind speed conditions of all test points of the test piece 6 can be intuitively displayed. Furthermore, the first drive member 25, the second drive member 26 and the third drive member 27 can all be drive motors, wherein the first drive member 25, the second drive member 26 and the third drive member 27 are all electrically connected to the control mechanism 1, and then the control mechanism 1 can be used to drive the operation of the first drive member 25, the second drive member 26 and the third drive member 27.

[0043] In a specific embodiment, Figure 3 As shown, the wind speed test piece 24 includes a first wind speed test probe 241 and a second wind speed test probe 242 arranged in parallel. The detection end of the first wind speed test probe 241 and the detection end of the second wind speed test probe 242 both extend along the axial direction of the second axial movable track 28 and extend out of the second axial movable track 28. The fixed end of the first wind speed test probe 241 and the fixed end of the second wind speed test probe 242 are respectively fixedly arranged on both sides of the second axial movable track 28.

[0044] Specifically, part of the structure of the first wind speed test probe 241 and part of the structure of the second wind speed test probe 242 extend from the second axial movable track 28, and then by setting the first wind speed test probe 241 and the second wind speed test probe 242, a dual wind speed test probe can be used to perform a surface wind speed uniformity test on the test piece 6 on the carrier 51, thereby improving the test efficiency and shortening the test time.

[0045] In actual applications, the first wind speed test probe 241 and the second wind speed test probe 242 are both parallel to the airflow direction of the air outlet surface of the test piece 6 .

[0046] In a specific embodiment, the testing mechanism 2 further includes a wind speed sensor 7, which is used to obtain the results detected by the wind speed testing piece 24 and upload the obtained results to the control mechanism 1, so as to obtain the surface wind speed uniformity test results.

[0047] In an optional embodiment, if Figure 1As shown, the air volume compensation mechanism includes an air volume output adjusting component 31, an air volume measuring adjusting component 32, an air volume measuring component 33, an air volume transmission duct 34, a transmission duct stabilizing component 35 and a static pressure box 36; wherein, the output end of the air volume output adjusting component 31 is connected to the air inlet of the air volume transmission duct 34, and the air outlet of the air volume transmission duct 34 is provided with a static pressure box 36, and the static pressure box 36 is used to match the bearing component 51; the air volume measuring adjusting component 32 and the air volume measuring component 33 are both arranged in the air volume transmission duct 34, and the transmission duct stabilizing component 35 is fixedly connected to the outer wall of the air volume transmission duct 34.

[0048] Specifically, the air volume output adjustment component 31 is a device for providing air volume. Exemplarily, the air volume output adjustment component 31 can be a variable frequency fan, and the air volume measurement adjustment component 32 is used to control the opening and closing of the air volume measurement component 33. Exemplarily, the air volume measurement adjustment component 32 can be a rotary telescopic cylinder, and the air volume measurement component 33 is a device for measuring the size of the air volume flowing into the static pressure box 36. Exemplarily, the air volume measurement component 33 can be an air volume measurement nozzle, and the static pressure box 36 is used to uniform the airflow, and then by setting the air volume output adjustment component 31, the air volume measurement adjustment component 32, the air volume measurement component 33, the air volume transmission pipe 34, the transmission pipe stabilization component 35 and the static pressure box 36, the real-time regulation and measurement of the test air volume can be realized, thereby improving the applicability of the surface wind speed uniformity test.

[0049] It should be noted that the air volume output adjustment component 31 and the air volume measurement adjustment component 32 are both electrically connected to the control mechanism 1, and the control mechanism 1 can be used to drive the operation of the air volume output adjustment component 31 and the air volume measurement adjustment component 32. Specifically, the control mechanism 1 can change the air volume of the air outlet surface of the test piece 6 by changing the frequency of the air volume output adjustment component 31, thereby meeting the needs of testing at multiple operating points.

[0050] In a specific embodiment, Figure 1 and Figure 2 As shown, the output end of the air volume measuring component 33 is provided with a cover 42 , the control end of the air volume measuring control 32 is connected to the cover 42 , and the air volume measuring control 32 is used to control the opening and closing between the cover 42 and the output port of the air volume measuring component 33 .

[0051] In an embodiment of the present application, the size of the cover 42 matches the size of the output port of the air volume measuring component 33. The present application sets the cover 42 at the output end of the air volume measuring component 33 so that the air volume measurement adjustment control 32 can be used to control the opening and closing between the cover 42 and the output port of the air volume measuring component 33, thereby realizing the measurement of the air volume.

[0052] In a specific embodiment, the control mechanism 1 can control the rotary telescopic cylinder to rotate and extend, and then the rotation and extension of the rotary telescopic cylinder can control the opening and closing between the cover body 42 and the output port of the air volume measuring nozzle, thereby realizing the measurement of a wide range of air volume. It should be noted that when the cover body 42 and the output port of the air volume measuring nozzle are in a closed state, the cover body 42 and the output port of the air volume measuring nozzle are in a completely blocked state. When the cover body 42 and the output port of the air volume measuring nozzle are in an open state, the cover body 42 and the output port of the air volume measuring nozzle are in a completely unblocked state, so that the air volume measuring nozzle can be used for air volume measurement.

[0053] In practical applications, such as Figure 2 As shown, the number of air volume measuring parts 33 can include multiple air volume measuring parts 33, and the air volume measuring control parts 32 are set in a one-to-one correspondence with the air volume measuring parts 33, and the sizes of the multiple air volume measuring parts 33 can be different, and then rotated and extended by different rotating and telescopic cylinders to control the corresponding air volume measuring parts 33 to output, thereby achieving different air volume measurement ranges to meet the needs of testing different working points in the surface wind velocity uniformity test, so that the surface wind velocity uniformity test device can achieve accurate measurement within a wider air volume range.

[0054] Specifically, the control mechanism 1 can select different air volume measuring components 33 to open according to the size of the air volume output by the air volume output adjusting component 31. For example, when the range of the air volume output by the air volume output adjusting component 31 is 100 cubic meters / hour-500 cubic meters / hour, an air volume measuring component 33 with a larger output port can be selected for measurement. When the range of the air volume output by the air volume output adjusting component 31 is 500 cubic meters / hour-1000 cubic meters / hour, an air volume measuring component 33 with a larger output port and multiple air volume measuring components 33 with smaller output ports can be selected and opened in combination to achieve measurement of a wide range of air volume output.

[0055] In an optional embodiment, if Figure 1 As shown, the transmission pipe stabilizing assembly 35 includes multiple transmission pipe stabilizing mechanisms, and the multiple transmission pipe stabilizing mechanisms are parallel to each other; wherein, the transmission pipe stabilizing mechanism includes a horizontal state adjustment member 351 and a hanging stabilizing member 352, the horizontal state adjustment member 351 is arranged on the outer wall of the air volume transmission pipe 34, the horizontal state adjustment member 351 is connected to one end of the hanging stabilizing member 352 on the side away from the air volume transmission pipe 34, and the other end of the hanging stabilizing member 352 is used to connect to an external fixed object.

[0056] In an embodiment of the present application, a plurality of transmission pipe stabilizing mechanisms including horizontal state adjustment members 351 and hanging stabilizing members 352 are provided to fix the air volume transmission pipe 34. At the same time, a hoisting installation method can be implemented for the air volume transmission pipe 34, thereby reducing the space occupied by the surface wind velocity uniformity test device on the ground and improving space utilization.

[0057] In actual applications, the horizontal state adjustment member 351 can be a horizontal adjuster, the suspension stabilizing member 352 can be a suspension screw, and the number of transmission pipe stabilizing mechanisms is 4. Among them, the 4 transmission pipe stabilizing mechanisms are arranged at intervals on the upper side of the air volume transmission pipe 34, thereby facilitating the suspension and fixation of the air volume transmission pipe 34.

[0058] It should be noted that if Figure 1 As shown, a plurality of transmission pipeline stabilizing mechanisms including a horizontal state adjustment member 351 and a suspension stabilizing member 352 are also provided on the side of the static pressure box 36 away from the support member 51, wherein the side of the horizontal state adjustment member 351 away from the support member 51 is connected to one end of the suspension stabilizing member 352, and the other end of the suspension stabilizing member 352 is used to be connected to an external fixed object so as to fix the static pressure box 36. In some specific embodiments, the number of transmission pipeline stabilizing mechanisms on the static pressure box 36 is 2, and the 2 transmission pipeline stabilizing mechanisms are respectively arranged at both ends of the static pressure box 36.

[0059] In an optional embodiment, if Figure 1 A connector 41 is provided at the air inlet of the air volume transmission duct 34 shown, and the air volume transmission duct 34 is connected to the output end of the air volume output adjustment component 31 through the connector 41. A flow equalizing plate 39 is provided in the air volume transmission duct 34, and the flow equalizing plate 39 is arranged between the connector 41 and the air volume measurement adjustment component 32.

[0060] Specifically, by setting a flow equalizing plate 39 in the air volume transmission duct 34, the flow equalizing plate 39 can be used to control the wind direction in the air volume transmission duct 34, improve the uniformity of the air flow in the air volume transmission duct 34, reduce turbulence and eddy currents, and thus improve the accuracy of the surface wind speed uniformity test results.

[0061] Furthermore, if Figure 1 As shown, a flow equalizing plate 39 is also provided between the air volume measuring piece 33 and the static pressure box 36. The flow equalizing plate 39 located between the air volume measuring piece 33 and the static pressure box 36 can be utilized to improve the uniformity of the air flow between the air volume measuring piece 33 and the static pressure box 36, thereby further improving the test results.

[0062] In an optional embodiment, if Figure 1As shown, the drive assembly 52 includes a lifting drive member 521, the driving end of the lifting drive member 521 is connected to the supporting member 51, and the control end of the lifting drive member 521 is connected to the control mechanism 1. The control mechanism 1 is used to control the lifting drive member 521 to lift and lower. The lifting and lowering of the lifting drive member 521 can drive the supporting member 51 to move up and down. When the supporting member 51 moves upward a first distance, part of the structure of the supporting member 51 is fitted with the bottom of the static pressure box 36 through the sealing member.

[0063] Specifically, by setting a lifting drive member 521, the lifting and lowering of the lifting drive member 521 can be used to drive the supporting member 51 to move up and down, thereby realizing an automated lifting process, and after the supporting member 51 moves upward a first distance, part of the structure of the supporting member 51 is tightly fitted with the bottom of the static pressure box 36 through the sealing member, thereby preventing the existence of an air leakage gap between the supporting member 51 and the bottom of the static pressure box 36, so as to achieve the sealing effect. Exemplarily, the sealing member can be a sealing gasket or a sealing strip, etc. In a specific embodiment, the lifting drive member 521 includes four, and the connection line between each adjacent two lifting drive members 521 in the four lifting drive members 521 forms a rectangular structure, and then the four lifting drive members 521 can be used to drive the bracket for supporting the supporting platform to lift and lower, so that part of the structure of the supporting member 51 can be tightly fitted with the bottom of the static pressure box 36.

[0064] In practical applications, the lifting drive component 521 may be a hydraulic lifting drive component.

[0065] In an optional embodiment, if Figure 1 As shown, the air volume compensation mechanism also includes a pressure difference detection device 37 and a pressure measuring pipe 38. The control end of the pressure difference detection device 37 is connected to the control mechanism 1, and the measuring end of the pressure difference detection device 37 is connected to the static pressure box 36 through the pressure measuring pipe 38. The end of the pressure measuring pipe 38 away from the pressure difference detection device 37 extends into the static pressure box 36.

[0066] Specifically, the pressure difference detection device 37 can be a pressure difference sensor, which can detect the pressure difference value in the static pressure box 36 through the pressure difference sensor, and transmit the detected pressure difference value to the control mechanism 1, so that the control mechanism 1 adjusts the air volume output size of the air volume output adjustment member 31 according to the pressure difference value, so as to realize feedback adjustment of the air volume size in the static pressure box 36.

[0067] The above embodiments of the present application have the following beneficial effects:

[0068] The present application sets up a control mechanism, a testing mechanism, an air volume compensation mechanism and a supporting mechanism, so that the air volume compensation mechanism can compensate the air volume on the air outlet surface of the test piece according to the air volume control signal output by the control mechanism, and uses the testing mechanism to perform a surface wind speed uniformity test on the test piece on the supporting member according to the test signal output by the control mechanism, so as to realize an automated surface wind speed uniformity test process and improve the test efficiency. Furthermore, by setting up a supporting member, the support member can be used to carry the test piece to meet the requirements of horizontal placement test of the test piece to be tested, fully simulating the actual use conditions of the test piece to be tested, thereby also improving the test accuracy.

[0069] The structures shown in this embodiment are merely partial structures related to the present invention and do not limit the devices to which the present invention is applied. Specific devices may include more or fewer components than shown, or combine certain components, or have different component arrangements. It should be understood that the methods, devices, etc. disclosed in this embodiment may be implemented in other ways.

[0070] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A surface wind speed uniformity testing device, characterized in that: It comprises a control mechanism (1), a testing mechanism (2), an air volume compensation mechanism and a bearing mechanism, wherein the testing mechanism (2), the air volume compensation mechanism and the bearing mechanism are all electrically connected to the control mechanism (1); The bearing mechanism comprises a bearing member (51) and a driving assembly (52) for driving the bearing member (51) to rise and fall, the bearing member (51) being used to bear the test piece (6), the driving assembly (52) being electrically connected to the control mechanism (1), the output end of the air volume compensation mechanism being arranged toward the windward surface of the bearing member (51), and the air volume compensation mechanism being used to compensate for the air volume on the air outlet surface of the test piece (6) according to the air volume control signal output by the control mechanism (1); The testing end of the testing mechanism (2) is located below the air outlet surface of the test piece (6), and the testing mechanism (2) is used to perform a surface wind speed uniformity test on the test piece (6) on the carrier (51) according to the test signal output by the control mechanism (1).

2. The surface wind speed uniformity testing device according to claim 1, characterized in that: The testing mechanism (2) comprises a first axial movable track (21), a second axial movable track (28), a third axial movable track (23), a wind speed test piece (24) and an axial support bracket (22); The first axial movable track (21), the second axial movable track (28) and the third axial movable track (23) are perpendicular to each other, the second axial movable track (28) is arranged in parallel with the axial support bracket (22), the first axial movable track (21) is slidably connected to the first end of the axial support bracket (22), the second end of the axial support bracket (22) is fixedly connected to the end of the third axial movable track (23), the second axial movable track (28) is arranged on the third axial movable track (23) and is slidably connected to the third axial movable track (23), and the wind speed test piece (24) is arranged on the second axial movable track (28); A first driving member (25) is provided on the first axial moving track (21), and a driving end of the first driving member (25) is connected to the axial support bracket (22). The first driving member (25) is used to drive the axial support bracket (22) to move axially along the first axial moving track (21). A second driving member (26) is provided on the third axial moving track (23), and a driving end of the second driving member (26) is connected to the second axial moving track (28). The second driving member (26) is used to drive the second axial moving track (28) to move axially along the third axial moving track (23). A third driving member (27) is provided on the second axial moving track (28), and a driving end of the third driving member (27) is connected to the wind speed test piece (24). The third driving member (27) is used to drive the wind speed test piece (24) to move axially along the second axial moving track (28).

3. The surface wind speed uniformity testing device according to claim 2, characterized in that: The wind speed test piece (24) comprises a first wind speed test probe (241) and a second wind speed test probe (242) arranged in parallel, wherein the detection end of the first wind speed test probe (241) and the detection end of the second wind speed test probe (242) both extend along the axial direction of the second axial movable track (28) and extend out of the second axial movable track (28), and the fixed end of the first wind speed test probe (241) and the fixed end of the second wind speed test probe (242) are respectively fixedly arranged on both sides of the second axial movable track (28).

4. The surface wind speed uniformity testing device according to claim 1, characterized in that: The air volume compensation mechanism includes an air volume output adjustment component (31), an air volume measurement adjustment component (32), an air volume measurement component (33), an air volume transmission pipeline (34), a transmission pipeline stabilization component (35), and a static pressure box (36); The output end of the air volume output regulating member (31) is connected to the air inlet of the air volume transmission pipe (34), and the air outlet of the air volume transmission pipe (34) is provided with the static pressure box (36), and the static pressure box (36) is used to match the bearing member (51); The air volume measurement and adjustment control unit (32) and the air volume measurement unit (33) are both arranged in the air volume transmission duct (34), and the transmission duct stabilizing component (35) is fixedly connected to the outer side wall of the air volume transmission duct (34).

5. The surface wind speed uniformity testing device according to claim 4, characterized in that: The transmission pipeline stabilizing assembly (35) includes a plurality of transmission pipeline stabilizing mechanisms, and the plurality of transmission pipeline stabilizing mechanisms are parallel to each other; The transmission pipe stabilizing mechanism comprises a horizontal state adjusting member (351) and a hanging stabilizing member (352); the horizontal state adjusting member (351) is arranged on the outer side wall of the air volume transmission pipe (34); the side of the horizontal state adjusting member (351) away from the air volume transmission pipe (34) is connected to one end of the hanging stabilizing member (352); and the other end of the hanging stabilizing member (352) is used to be connected to an external fixed object.

6. The surface wind speed uniformity testing device according to claim 4, characterized in that: A connecting piece (41) is provided at the air inlet of the air volume transmission pipe (34), and the air volume transmission pipe (34) is connected to the output end of the air volume output adjustment component (31) through the connecting piece (41). A flow averaging plate (39) is provided in the air volume transmission pipe (34), and the flow averaging plate (39) is arranged between the connecting piece (41) and the air volume measurement adjustment component (32).

7. The surface wind speed uniformity testing device according to claim 4, characterized in that: The output end of the air volume measuring component (33) is provided with a cover (42), the control end of the air volume measuring control unit (32) is connected to the cover (42), and the air volume measuring control unit (32) is used to control the opening and closing between the cover (42) and the output port of the air volume measuring component (33).

8. The surface wind speed uniformity testing device according to claim 4, characterized in that: The driving assembly (52) includes a lifting driving member (521), a driving end of the lifting driving member (521) is connected to the supporting member (51), and a control end of the lifting driving member (521) is connected to the control mechanism (1). The control mechanism (1) is used to control the lifting driving member (521) to lift and lower. The lifting and lowering of the lifting driving member (521) can drive the supporting member (51) to move up and down. When the supporting member (51) moves upward a first distance, a part of the structure of the supporting member (51) is fitted with the bottom of the static pressure box (36) through a sealing member.

9. The surface wind speed uniformity testing device according to claim 4, characterized in that: The air volume compensation mechanism further includes a pressure difference detection device (37) and a pressure measuring pipe (38), wherein a control end of the pressure difference detection device (37) is connected to the control mechanism (1), and a measuring end of the pressure difference detection device (37) is connected to the static pressure box (36) via the pressure measuring pipe (38), and an end of the pressure measuring pipe (38) away from the pressure difference detection device (37) extends into the static pressure box (36).

10. The surface wind speed uniformity testing device according to claim 8, characterized in that: The lifting drive members (521) include four, and the connection line between each two adjacent lifting drive members (521) among the four lifting drive members (521) forms a rectangular structure.

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