A high pressure fan wind pressure test device

Abstract

The embodiment of the present application provides a high-pressure fan wind pressure test device, which relates to the field of fan testing technology. A high-pressure fan wind pressure test device includes an air collecting tube, both sides of the air collecting tube are fixedly connected with a spherical frame, and the top of the spherical frame is fixedly connected with a cylinder barrel, the two air intake ports of the cylinder barrel are connected with an air intake pipe, and the air intake pipe is provided with an air intake valve; the bottom of the spherical frame is fixedly connected with a fixed box through a bracket, and the right side of the top of the fixed box is fixedly connected with an exhaust tube, and the right side of the air collecting tube is provided with a partition component used in conjunction with the exhaust tube; one side of the fixed box is provided with an adjustment component, and both sides of the top of the fixed box are provided with switching components used in conjunction with the adjustment component. Based on the change of the conveying angle and the change of the channel shape, the accurate measurement effect of the wind pressure in different scenarios is achieved, and the diversity and accuracy of its measurement results are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fan testing, and in particular relates to a wind pressure testing device for a high-pressure fan. Background Art

[0002] A high-pressure fan refers to a fan with a wind pressure of 30kPa-200KPa or a compression ratio of e=1.3-3 under design conditions. The current industry generally classifies gas ring vacuum pumps as high-pressure fans. High-pressure fans, also called high-pressure blowers, are different from general centrifugal blowers. When the impeller rotates, due to the action of centrifugal force, the wind vane prompts the gas to move forward and outward, thus forming a series of spiral movements. The air between the impeller blades accelerates in a spiral shape and squeezes the gas outside the pump body into the side groove (sucked in by the air inlet). After it enters the side channel, the gas is compressed, and then returns to the impeller blades to accelerate again.

[0003] In the prior art (publication number CN118242305A, patent name is a patent application for a high-pressure fan wind pressure test device), by setting the detection head of the differential pressure gauge inside a special pipe, when the high-pressure fan continues to run and delivers airflow to the detection head of the differential pressure gauge, the detection head of the differential pressure gauge can be adjusted along the inner cavity of the special pipe according to the detection requirements. At this time, the distance between the detection head of the differential pressure gauge and the exhaust port of the high-pressure fan can be selectively adjusted. At the same time, a comparative test of wind pressure at different intervals can be performed, thereby effectively ensuring that the differential pressure gauge can adjust the wind pressure at a gradual interval in the inner cavity of the special pipe, and then the differential pressure gauge can detect the wind pressure in real time data in the DC channel. In the process of implementing this technical solution, it is found that there are at least the following problems in the prior art.

[0004] Before the high-pressure fan is produced and used, it is necessary to use a test device to measure the wind pressure coefficient generated by the high-pressure fan. Since the applicable pipes for high-pressure fans include not only circular tubes but also square tubes, and the ventilation shapes in circular tubes and square tubes are different, the pressure of the wind passing through is also different. It is not possible to accurately measure the wind pressure of the high-pressure fan through the circular channel and the square channel by switching the position of the circular tube and the square tube, which limits the measurement scenario limitations of the high-pressure fan, and the obtained wind pressure measurement coefficient is not accurate enough. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems in the prior art that the wind pressure direction of a high-pressure fan and the wind pressure through a circular channel and a square channel cannot be accurately measured according to actual application scenarios. To this end, the present application proposes a high-pressure fan wind pressure test device.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A high-pressure blower wind pressure test device comprises an air collecting cylinder, both sides of the air collecting cylinder are fixedly connected with a spherical frame, and the top of the spherical frame is fixedly connected with a cylinder barrel, two air intake ports of the cylinder barrel are connected with an air intake pipe, and an air intake valve is arranged on the air intake pipe;

[0008] The bottom of the spherical frame is fixedly connected to a fixed box through a bracket, and the right side of the top of the fixed box is fixedly connected to an exhaust duct, and a partition component used in conjunction with the exhaust duct is provided on the right side of the air collecting duct, and the partition component includes a fan motor fixed to the left side of the air collecting duct and acts on a unified driving source;

[0009] An adjusting component is arranged on one side of the fixed box, and the adjusting component comprises a main bevel gear fixed on the output shaft of the fan motor, and switching components used in conjunction with the adjusting component are arranged on both sides of the top of the fixed box.

[0010] Preferably: the partition assembly also includes a fan impeller fixed on the right side of the fan motor output shaft, and the right side of the air collecting cylinder is connected to a wind collecting hood, the right sides of the wind collecting hood are respectively connected to a lateral pipe and a central pipe, and solenoid valves are provided on the lateral pipe and the central pipe, and the right ends of the lateral pipe and the central pipe are connected to a partition plate.

[0011] Preferably: the adjustment assembly also includes a secondary bevel gear located below the main bevel gear, and the bottom of the secondary bevel gear is fixedly connected to an electric push rod, the outer side of the electric push rod is provided with a rotating rod, and the bottom of the rotating rod is fixedly connected to a driving bevel gear, the right side of the driving bevel gear is meshed with a long bevel gear rack, and the other end of the long bevel gear rack is meshed with a driven bevel gear.

[0012] Preferably: the switching assembly includes a swing arm fixed to the driven bevel gear through a fixing rod, and the other side of the swing arm is slidably connected to a swing frame through a convex head, both sides of the top of the swing frame are fixedly connected to a sliding seat that slidably cooperates with the fixed box, and the top of the sliding seat is fixedly connected to a support, both sides of the support are fixedly connected to a connecting tube that communicates and cooperates with the partition plate and the exhaust duct, and a circular channel and a square channel are respectively opened in the connecting tube.

[0013] Preferably, a first blocking disk is clamped at one end of the partition disk and the exhaust pipe facing each other, and the lateral tubes are distributed in a triangular equidistant state along the horizontal axis of the central tube.

[0014] Preferably: a sealing groove is provided on the side facing the partition plate and the exhaust tube and on both sides of the connecting tube, and a sealing ring is provided in the sealing groove on the side facing the partition plate and the exhaust tube.

[0015] Preferably, T-shaped slide grooves are provided on both sides of the inner cavity of the fixed box, and the inner cavity of the T-shaped slide groove is slidably connected with a T-shaped sliding block fixedly matched with the swing frame.

[0016] Preferably: the second blocking disks are clamped on both sides of the connecting tube, and the connecting tube is provided with guide grooves near the circular channel and the square channel.

[0017] Preferably, a wind pressure side view meter is fixedly connected to the top of the exhaust duct via a mounting seat, and a side view meter probe embedded in the exhaust duct is fixedly connected to the bottom of the wind pressure side view meter.

[0018] Preferably, an exhaust port is provided on the right side of the exhaust cylinder, and an exhaust grille is embedded in the exhaust port; an air inlet is provided on the left side of the air collecting cylinder, and an air inlet grille is embedded in the air inlet.

[0019] The high-pressure fan wind pressure testing device of the present invention has the following advantages:

[0020] 1. This kind of high-pressure fan wind pressure testing device first uses a fan motor as a unified driving source to drive the fan impeller to rotate at high speed in the wind collecting tube and generate wind force and transport it to the wind collecting cover in a concentrated manner, and by controlling the opening and closing of the solenoid valve, the wind force in the wind collecting cover is correspondingly regulated through the channels of the lateral pipes and the central pipe, so that the transmission angle of the wind pressure through the partition plate is changed, and the wind pressure can be directly transmitted or multi-directionally inclined, thereby improving the comprehensiveness and accuracy of the wind pressure measurement at different transmission angles.

[0021] 2. This high-pressure fan wind pressure testing device, first, the electric push rod in the rotating rod adjusts the meshing stroke of the main bevel gear and the auxiliary bevel gear, and then the fan motor as a unified driving source drives the main bevel gear and the auxiliary bevel gear to rotate, the auxiliary bevel gear drives the driving bevel gear to rotate through the rotating rod, and the driving bevel gear drives the driven bevel gear to rotate through the long bevel gear rack, providing driving convenience for switching the channel positions of different shapes.

[0022] 3. A high-pressure fan wind pressure testing device, and then, the driven bevel gear drives the swing frame through the swing arm to adjust the horizontal position, and the swing frame drives the two groups of connecting tubes to switch the horizontal position through the supports on the two groups of slides, so that one group of connecting tubes with a circular channel or the other group of connecting tubes with a square channel reaches the connecting end between the partition plate and the exhaust tube, so that they are connected into one channel, and then the side viewer probe on the wind pressure side viewer, based on the change of the delivery angle and the change of the channel shape, realizes the accurate measurement effect of wind pressure in different scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a structural initial state diagram of a high-pressure fan wind pressure testing device of the present invention;

[0025] Figure 2 A structural measurement state diagram of a high-pressure fan wind pressure test device of the present invention;

[0026] Figure 3 A bottom-up cross-sectional view of a high-pressure blower wind pressure testing device structure of the present invention;

[0027] Figure 4 It is a partial internal view of the structure of a high-pressure fan wind pressure testing device of the present invention;

[0028] Figure 5 It is a side exploded view of the air collecting cylinder, partition assembly, exhaust cylinder and first blocking plate structure of the present invention;

[0029] Figure 6 It is a front cross-sectional view of the air collecting tube and partition assembly structure of the present invention;

[0030] Figure 7 It is a side cross-sectional view of the exhaust duct structure of the present invention;

[0031] Figure 8 It is a structural initial state diagram of the fan motor, fan impeller, adjustment component and switching component of the present invention;

[0032] Fig. 9 It is a structural switching state diagram of the fan motor, fan impeller, adjustment component and switching component of the present invention;

[0033] Fig.10 It is a side cross-sectional view of the adjustment component and the switching component structure of the present invention;

[0034] Fig.11 It is a side cross-sectional view of the connection tube and the circular channel structure of the present invention;

[0035] Fig.12 It is a side cross-sectional view of the connection tube and the square channel structure of the present invention;

[0036] Fig.13 It is a front cross-sectional view of the cylinder barrel, fan motor, fan impeller, connecting barrel, supply assembly and interference assembly structure of the present invention;

[0037] Fig.14 It is a side cross-sectional view of the cylinder barrel, fan motor, fan impeller and supply assembly structure of the present invention;

[0038] Fig.15 It is a side cross-sectional view of the cylinder barrel, the blower motor and the supply assembly structure of the present invention;

[0039] Fig.16 It is a side exploded view of the boost tank and interference assembly structure of the present invention;

[0040] Fig.17 It is a partial front view cross-sectional view of the structure of a high-pressure fan wind pressure testing device of the present invention.

[0041] Explanation of the markings in the figure: 1. air collecting cylinder; 2. spherical frame; 3. cylinder barrel; 4. fixed box; 5. exhaust cylinder; 6. partition assembly; 61. fan motor; 62. fan impeller; 63. air collecting cover; 64. lateral pipe; 65. center pipe; 66. solenoid valve; 67. partition plate; 7. adjustment assembly; 71. main bevel gear; 72. auxiliary bevel gear; 73. electric push rod; 74. rotating rod; 75. driving bevel gear; 76. long bevel gear rack; 77. driven bevel gear; 8. switching assembly; 81. swing arm; 82. swing frame; 83. slide seat; 84. support; 85. connecting cylinder; 86. circular channel; 87. Square channel; 9. Supply component; 91. Short bevel gear rack; 92. Differential bevel gear; 93. Concave rod; 94. Connecting rod; 95. Piston; 96. Boost pipe; 97. Boost tank; 10. Interference component; 101. Three-way valve; 102. First connecting head; 103. First rotating head; 104. Telescopic tube; 105. Second rotating head; 106. Second connecting head; 107. Conveying cover; 11. First blocking disk; 12. Sealing groove; 13. Sealing ring; 14. T-type slide groove; 15. T-type slide block; 16. Second blocking disk; 17. Wind pressure side view meter; 18. Side view meter probe; 19. Exhaust grille. DETAILED DESCRIPTION

[0042] The present invention is specifically described below in conjunction with the accompanying drawings and specific embodiments:

[0043] like Figure 1-Figure 17 As shown, a high-pressure blower wind pressure test device of the present invention comprises an air collecting tube 1, both sides of the air collecting tube 1 are fixedly connected with a spherical frame 2, and the top of the spherical frame 2 is fixedly connected with a cylinder barrel 3, two air intake ports of the cylinder barrel 3 are connected with an air intake pipe, and the air intake pipe is provided with an air intake valve, the top of the exhaust tube 5 is fixedly connected with a wind pressure side view meter 17 through a mounting seat, and the bottom of the wind pressure side view meter 17 is fixedly connected with a side view meter probe 18 embedded and matched with the exhaust tube 5, so as to measure the wind pressure transmitted to the exhaust tube 5;

[0044] The bottom of the spherical frame 2 is fixedly connected to a fixed box 4 through a bracket, and the right side of the top of the fixed box 4 is fixedly connected to an exhaust tube 5, an exhaust port is opened on the right side of the exhaust tube 5, and an exhaust grille 19 is embedded in the exhaust port to evenly discharge the wind force transmitted to the exhaust tube 5 and measured, and an air inlet is opened on the left side of the wind collecting tube 1, and an air inlet grille is embedded in the air inlet to meet the air intake and suction requirements of the wind collecting tube 1;

[0045] A partitioning component 6 for use with the exhaust duct 5 is provided on the right side of the wind collecting duct 1, and the partitioning component 6 includes a fan motor 61 fixed on the left side of the wind collecting duct 1 and acts on a unified driving source, so that the wind pressure can be directly transmitted or multi-directionally inclined, thereby improving the comprehensiveness and accuracy of the wind pressure measurement at different transmission angles. An adjustment component 7 is provided on one side of the fixed box 4, and the adjustment component 7 includes a main bevel gear 71 fixed on the output shaft of the fan motor 61. Switching components 8 for use with the adjustment component 7 are provided on both sides of the top of the fixed box 4. Based on the change of the transmission angle and the change of the channel shape, the accurate measurement effect of the wind pressure in different scenarios can be achieved.

[0046] like Figure 5-Figure 12 As shown, the partition component 6 also includes a fan impeller 62 fixed to the right side of the output shaft of the fan motor 61, and the right side of the wind collecting tube 1 is connected to a wind collecting cover 63, and the fan motor 61 as a unified driving source drives the fan impeller 62 to rotate at a high speed in the wind collecting tube 1 and generate wind force and transport it to the wind collecting cover 63 in a concentrated manner, and the right side of the wind collecting cover 63 is respectively connected to a lateral pipe 64 and a central pipe 65, and the opening and closing of the electromagnetic valve 66 is controlled to correspondingly regulate the passage of the wind force in the wind collecting cover 63 through the lateral pipe 64 and the central pipe 65, and the lateral pipe 64 and the central pipe 65 are both provided with electromagnetic valves 66, and the right ends of the lateral pipe 64 and the central pipe 65 are connected to a partition plate 67, so that the conveying angle of the wind pressure through the partition plate 67 is changed, and the wind pressure can be directly conveyed or multi-directionally inclined, thereby improving the comprehensiveness and accuracy of the measurement of the wind pressure at different conveying angles;

[0047] The first blocking disk 11 is clamped on the facing end of the partition disk 67 and the exhaust duct 5. During non-measurement time, the ends of the partition disk 67 and the exhaust duct 5 are blocked to prevent dust. The lateral tubes 64 are distributed in a triangular equidistant state along the horizontal axis of the central tube 65 to meet the requirements of oblique and straight transmission of wind from different directions.

[0048] The adjusting assembly 7 also includes a secondary bevel gear 72 located below the main bevel gear 71, and the bottom of the secondary bevel gear 72 is fixedly connected to an electric push rod 73, and a rotating rod 74 is sleeved on the outer side of the electric push rod 73. The meshing stroke of the main bevel gear 71 and the secondary bevel gear 72 is first adjusted by the electric push rod 73 in the rotating rod 74, and a driving bevel gear 75 is fixedly connected to the bottom of the rotating rod 74. Then, the fan motor 61 as a unified driving source drives the main bevel gear 71 and the secondary bevel gear 72 to rotate, and the secondary bevel gear 72 drives the driving bevel gear 75 to rotate accordingly through the rotating rod 74. The right side of the driving bevel gear 75 is meshed with a long bevel gear rack 76, and the other end of the long bevel gear rack 76 is meshed with a driven bevel gear 77. The driving bevel gear 75 drives the driven bevel gear 77 to rotate through the long bevel gear rack 76, so as to provide driving convenience for switching the positions of channels of different shapes.

[0049] The switching assembly 8 includes a swing arm 81 fixed to the driven bevel gear 77 through a fixed rod, and the other side of the swing arm 81 is slidably connected to a swing frame 82 through a convex head. The driven bevel gear 77 drives the swing frame 82 to adjust its horizontal position through the swing arm 81. Both sides of the top of the swing frame 82 are fixedly connected to a slide seat 83 that slides with the fixed box 4, and the top of the slide seat 83 is fixedly connected to a support 84. Both sides of the support 84 are fixedly connected to a connecting tube 85 that communicates with the partition plate 67 and the exhaust duct 5. The swing frame 82 is connected to the partition plate 67 and the exhaust duct 5 through two sets of slide seats 83. The support 84 on 3 drives the two groups of connecting tubes 85 to switch their horizontal positions accordingly, and the connecting tubes 85 are respectively provided with a circular channel 86 and a square channel 87, so that one group of connecting tubes 85 with a circular channel 86 or another group of connecting tubes 85 with a square channel 87 reaches the connecting end between the partition plate 67 and the exhaust tube 5, so that they are connected into one channel, and then the side view instrument probe 18 on the wind pressure side view instrument 17 realizes the accurate measurement effect of wind pressure in different scenes based on the change of the conveying angle and the change of the channel shape;

[0050] Sealing grooves 12 are provided on the opposite sides of the partition disk 67 and the exhaust duct 5 and on both sides of the connecting tube 85, and a sealing ring 13 is arranged in the sealing groove 12 on the opposite sides of the partition disk 67 and the exhaust duct 5. After the connecting tube 85 is switched to its position, the two ends of the group of connecting tubes 85 and the connecting ends between the partition disk 67 and the exhaust duct 5 are sealed to avoid air leakage and pressure relief. T-shaped grooves 14 are provided on both sides of the inner cavity of the fixed box 4, and the inner cavity of the T-shaped grooves 14 is slidably connected with a T-shaped slider 15 fixedly matched with the swing frame 82, which plays a role of sliding support for both sides of the swing frame 82 and improves the horizontal swing stability of the swing frame 82. Second blocking disks 16 are clamped on both sides of the connecting tube 85, and guide grooves are provided on the connecting tube 85 near the circular channel 86 and the square channel 87, which play a role of sealing and dustproofing on both sides of the connecting tube 85 during non-measurement time.

[0051] like Figure 13-Figure 16As shown, during the measurement of the wind pressure of the high-pressure fan, due to the interference of external pressure in the use environment of the high-pressure fan, the measurement process is mostly in an ideal state without the influence of external factors, so the accuracy of the wind pressure coefficient obtained is not accurate enough, and it does not have the field strength simulation function of the external pressure factor, resulting in inaccurate wind pressure measurement results. A supply component 9 that cooperates with the cylinder barrel 3 for work is provided in the spherical frame 2, and an interference component 10 for the pressure supply of the supply component 9 is provided on the connecting cylinder 85. The supply component 9 includes a short bevel gear frame 91 meshed on both sides of the main bevel gear 71, and the outer side of the short bevel gear frame 91 is meshed with a differential bevel gear 92, and the inner cavity of the differential bevel gear 92 is fixedly connected with a concave rod 93 that rotates with the spherical frame 2. The main bevel gear 71 drives the two groups through the two short bevel gear frames 91. The differential bevel gear 92 rotates, and the two sets of differential bevel gears 92 drive the two concave rods 93 to rotate accordingly, and the center of the concave rod 93 is connected with a connecting rod 94 through a rotating sleeve, and the other end of the connecting rod 94 is hinged with a piston 95 that slides with the cylinder barrel 3. The two concave rods 93 drive the pistons 95 on the two connecting rods 94 through the two sets of rotating sleeves to perform reciprocating work in the two sets of cylinder barrels 3, and generate a pressurized air source in the two sets of cylinder barrels 3 to provide a pressure air source for subsequent simulation of external pressure factors, and the two exhaust ports of the cylinder barrel 3 are connected with a boosting pipe 96, and the outer end of the boosting pipe 96 is connected with a boosting tank 97 fixedly matched with the air collecting tube 1, and the boosting pipe 96 adopts a long and short design and is provided with an exhaust valve, and the boosting air source in the two sets of cylinder barrels 3 is supplied to the four sets of boosting tanks 97 by four boosting pipes 96 for temporary storage;

[0052] The interference component 10 includes a three-way valve 101 connected to the outer end of the boost tank 97 through a pipeline, and the outer end of the three-way valve 101 is connected to a first connecting head 102, and the first connecting head 102 is rotatably connected to a first rotating head 103. The pressurized air source in the four groups of boost tanks 97 passes through two groups of three-way valves 101 to reach the two groups of first connecting heads 102 and the first rotating head 103, and the other end of the first rotating head 103 is connected to a telescopic tube 104, and the other end of the telescopic tube 104 is connected to a second rotating head 105, and the inner cavity of the second rotating head 105 is rotatably connected to a second connecting head 106, and the bottom end of the second connecting head 106 is connected to a conveying cover 107 that is connected and matched with the connecting cylinder 85, and the pressurized air source in the two groups of first connecting heads 102 and the first rotating head 103 is then supplied to the following connecting cylinder 8 In the two telescopic tubes 104 that undergo telescopic action when switching between the 5 positions, the pressurized air source in the two telescopic tubes 104 passes through the two sets of second rotating heads 105 and the second connecting heads 106 to reach the two sets of conveying covers 107, and then reaches the circular channel 86 and the square channel 87 in the two sets of connecting tubes 85 accordingly, so as to simulate the external pressure interference environment corresponding to the wind pressure passing through the circular channel 86 or the square channel 87, and further improve the measurement accuracy of the wind pressure of the high-pressure blower, and the first connecting head 102 and the first rotating head 103 as well as the second rotating head 105 and the second connecting head 106 also maintain an intercommunication state while rotating, which is beneficial to the first connecting head 102 and the first rotating head 103 as well as the second rotating head 105 and the second connecting head 106 while rotating, and also allows the pressurized air source to be smoothly conveyed therein.

[0053] A working principle of a high-pressure fan wind pressure test device: first, the partition plate 67 and the first blocking plate 11 inside the exhaust tube 5 are pulled out, and then the second blocking plates 16 at both ends of one set of connecting tubes 85 are correspondingly pulled out, and the electric push rod 73 is controlled to open and drive the secondary bevel gear 72 to move up and get stuck in the meshing part of the main bevel gear 71, and then the fan motor 61 is controlled to open and drive the secondary bevel gear 72 to rotate through the meshing main bevel gear 71, and the secondary bevel gear 72 drives the driving bevel gear 75 to rotate through the rotating rod 74, and the driving bevel gear 75 drives the driven bevel gear 77 to rotate through the long bevel gear frame 76, and the driven bevel gear 77 drives the swing arm 81 to rotate, and the swing frame 82 is controlled by two sets of T-shaped slide grooves 14 and T-shaped sliders 15. Under the cooperation of the two ends of the sliding support, the convex head on the swing arm 81 drives the swing frame 82 to move horizontally, and the swing frame 82 is horizontally switched to the connecting end of the partition plate 67 and the exhaust duct 5 through the support 84 on the slide seat 83. One of the connecting tubes 85 with a circular channel 86 or a square channel 87 is designed, and the sealing grooves 12 at both ends of the connecting tube 85 are tightly fitted on the surface of the sealing ring 13 in the partition plate 67 and the exhaust duct 5, so that the connecting tube 85, the partition plate 67 and the exhaust duct 5 form a closed ventilation space. After the shape of the wind pressure channel is switched into place, the fan motor 61 is first controlled to pause, and then the electric push rod 73 is controlled to close and drive the secondary bevel gear 72 to move down and disengage from the meshing portion of the main bevel gear 71 to the initial position;

[0054] Next, the fan motor 61 is controlled to start and drive the fan impeller 62 to rotate at high speed in the air collecting tube 1, and before the wind force generated by the fan impeller 62 in the air collecting tube 1 is concentrated and transported to the air collecting cover 63, the solenoid valves 66 on the three lateral tubes 64 or the central tube 65 are controlled to open in advance. If the solenoid valve 66 on one of the lateral tubes 64 is opened, the solenoid valves 66 on the other lateral tubes 64 and the central tube 65 are closed, and the wind force in the air collecting cover 63 passes through the lateral tube 64 with the channel opened. At this time, the angle of the wind transmission channel is tilted, and the tilted wind force is transmitted from the partition plate 67 to one of the connecting tubes 85 in a sealed state with a circular channel 86 or a square channel 87, and then transmitted to the exhaust tube 5 through the connecting tube 85, and is detected by the wind pressure side view meter 17. The side-viewing instrument probe 18 extending downward measures the wind pressure reaching the exhaust duct 5. Similarly, after another set of connecting tubes 85 are switched to reach the partition plate 67 and the inside of the exhaust duct 5 to form a closed ventilation space, the electromagnetic valves 66 on the remaining two lateral tubes 64 or the central tube 65 are controlled to open successively, so that the wind force is obliquely transmitted or horizontally directly transmitted in another direction, and reaches the exhaust duct 5 through the channel in the other set of connecting tubes 85 after switching. The side-viewing instrument probe 18 extending downward by the wind pressure side-viewing instrument 17 measures the wind pressure reaching the exhaust duct 5 again, and multiple sets of measurement coefficients of wind pressure after the transmission inclination angle changes and the shape of the transmission channel changes can be obtained. Finally, the wind force in the exhaust duct 5 measured by the side-viewing instrument probe 18 is discharged by the exhaust grille 19.

[0055] At the same time, the fan motor 61 also drives the main bevel gear 71 to rotate synchronously with the fan impeller 62. The main bevel gear 71 drives the two sets of differential bevel gears 92 to rotate through the two short bevel gear racks 91. The two sets of differential bevel gears 92 drive the two concave rods 93 to rotate. The two concave rods 93 drive the two sets of pistons 95 to reciprocate in the two sets of cylinder barrels 3 through the connecting rods 94 on the two sets of rotating sleeves. After the pressurized air source is generated in the two sets of cylinder barrels 3, it is supplied to the four sets of booster tanks 97 for temporary storage through the four booster pipes 96. When it is necessary to simulate the interference of external pressure factors on the wind pressure in the measured state, the connecting cylinder 85 switched according to the current position controls the two sets of booster tanks 97 accordingly. The pressurized air source temporarily stored in 7 passes through the first connecting head 102 and the first rotating head 103 on the two groups of three-way valves 101, closing the channels of the pressurized air sources in the other two groups of boosting tanks 97, and the pressurized air source is then supplied to the telescopic tube 104 that follows the position switching of the group of connecting tubes 85 and performs telescopic actions successively, and then, through the second rotating head 105 and the second connecting head 106 with the opened channels, it is supplied to the conveying cover 107 at the position of the group of connecting tubes 85, and then supplied to the circular channel 86 or the square channel 87 space in the group of connecting tubes 85, causing interference with the passing wind force, and finally the side view instrument probe 18 measures the wind pressure that has passed the interference and reaches the exhaust duct 5.

[0056] It should be noted that the specific models and specifications of the fan motor 61, the electric push rod 73 and the wind pressure side view meter 17 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0057] The power supply circuits of the fan motor 61, the electric push rod 73 and the wind pressure side viewer 17 are clear to those skilled in the art and will not be described in detail here.

[0058] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A high-pressure fan wind pressure test device, comprising a wind collecting tube, characterized in that: Both sides of the air collecting cylinder are fixedly connected with a spherical frame, and the top of the spherical frame is fixedly connected with a cylinder barrel, the two air intake ports of the cylinder barrel are connected with an air intake pipe, and an air intake valve is arranged on the air intake pipe; The bottom of the spherical frame is fixedly connected to a fixed box through a bracket, and an exhaust duct is fixedly connected to the right side of the top of the fixed box, a partition component used in conjunction with the exhaust duct is provided on the right side of the air collecting duct, and the partition component includes a fan motor fixed to the left side of the air collecting duct, and the fan motor acts on a unified driving source, the partition component also includes a fan impeller fixed to the right side of the fan motor output shaft, and the right side of the air collecting duct is connected to an air collecting hood, the right sides of the air collecting hood are respectively connected to a lateral pipe and a central pipe, and solenoid valves are provided on the lateral pipe and the central pipe, and the right ends of the lateral pipe and the central pipe are connected to a partition plate; The transmission gear of the present invention is a gear shifting device, and the gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device. The gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device. The gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device.

2. A high-pressure fan wind pressure test device according to claim 1, characterized in that: The first blocking disk is clamped at one end of the partition disk and the exhaust tube facing each other, and the lateral tubes are distributed in a triangular equidistant state along the horizontal axis of the central tube.

3. A high-pressure fan wind pressure test device according to claim 2, characterized in that: The side facing the partition plate and the exhaust pipe and both sides of the connecting pipe are provided with sealing grooves, and a sealing ring is arranged in the sealing groove on the side facing the partition plate and the exhaust pipe.

4. A high-pressure fan wind pressure test device according to claim 3, characterized in that: Both sides of the inner cavity of the fixed box are provided with T-shaped sliding grooves, and the inner cavity of the T-shaped sliding groove is slidably connected with a T-shaped sliding block fixedly matched with the swing frame.

5. A high-pressure fan wind pressure test device according to claim 4, characterized in that: The second blocking disks are clamped on both sides of the connecting tube, and the connecting tube is provided with guide grooves near the circular channel and the square channel.

6. A high-pressure fan wind pressure test device according to claim 5, characterized in that: The top of the exhaust duct is fixedly connected with a wind pressure side view meter via a mounting seat, and the bottom of the wind pressure side view meter is fixedly connected with a side view meter probe which is embedded and matched with the exhaust duct.

7. A high-pressure fan wind pressure test device according to claim 6, characterized in that: An exhaust port is provided on the right side of the exhaust cylinder, and an exhaust grille is embedded in the exhaust port. An air inlet is provided on the left side of the air collecting cylinder, and an air inlet grille is embedded in the air inlet.

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