Energy-saving rotary fan

Abstract

The application relates to the field of rotary blowers, and discloses an energy-saving rotary blower which comprises a support, a driving motor is fixedly connected to one side of the top end of the support, a blower shell is fixedly connected to the top end of the outer wall of the support, a belt pulley a is fixedly connected to the output shaft of the driving motor, the belt pulley a is connected with a belt pulley b through a belt transmission, an air inlet is arranged at the top end of the blower shell, a drainage assembly is arranged on the inner wall of the bottom end of the blower shell, and an adjustable impeller mechanism is arranged on the inner wall of the blower shell. In the application, the motor b at the center of the impeller disc drives the rotation of the adjusting disc, the angle of the adjusting plate is flexibly switched between a straight line and a twisted type, different working condition requirements can be accurately matched, when high air volume is needed, the adjusting plate is in a straight line state, air flow resistance is reduced, and ventilation efficiency is improved; when high air pressure is needed, the adjusting plate is converted into a twisted type, and air compression capacity is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of rotary blowers, in particular to an energy-saving rotary blower. BACKGROUND

[0002] The rotary blower is a volumetric gas compression machine for conveying gas by periodically changing the volume of the gas chamber through the rotating motion of the impeller, and belongs to a type of blower, which is widely used in industrial ventilation, material conveying and other fields.

[0003] However, the high energy consumption problem of the traditional rotary blower has long restricted its development. Specifically, the impeller angle of the traditional blower is fixed, and the operating parameters cannot be adjusted according to the actual working conditions, resulting in a large amount of power waste when running at low load; in addition, when conveying humid air, water vapor condensation is easy to occur in the blower, which not only increases the resistance of the impeller rotation, but also aggravates the wear of the parts, reduces the efficiency of the blower, and significantly increases the unit energy consumption. Therefore, it is urgent to develop an energy-saving rotary blower to solve the above problems. SUMMARY

[0004] The purpose of the present application is to solve the problems raised in the background art, and then an energy-saving rotary blower is proposed. The present application improves the problem that the impeller angle of the traditional blower in the prior art is fixed and the operating parameters cannot be adjusted according to the actual working conditions, and the blower still maintains high speed when running at low load, resulting in a large amount of power waste, by setting the impeller mechanism. By changing the state of the adjusting plate, different working condition requirements can be accurately matched, the energy conversion efficiency is improved, and the energy consumption is reduced.

[0005] The technical scheme adopted by the present application to solve its technical problems is:

[0006] An energy-saving rotary blower, comprising a support, one side of the top end of the support is provided with a driving motor, the other side of the top end of the support is provided with a support frame, the top end of the support frame is provided with a blower shell, the outer side wall of the blower shell is provided with an exhaust tank, the output shaft end of the driving motor is provided with a belt pulley a, the belt pulley a is connected with a belt pulley b through a belt transmission, the top end of the blower shell is provided with an air inlet, the inner wall of the bottom end of the blower shell is provided with a drainage assembly, the inner wall of the blower shell is provided with an adjustable impeller mechanism, and the output shaft end of the adjustable impeller mechanism is fixedly connected with the belt pulley b; the adjustable impeller mechanism comprises an impeller disc, a motor b is fixedly connected at the center of the impeller disc, an adjusting disc is arranged at the rotating center shaft end of the motor b, a fixed plate is fixedly connected to the inner arc surface of the impeller disc, a seat is hingedly connected to the inner wall of the top end of the fixed plate, an adjusting plate is slidably connected to the inner wall of the seat, a convex rod is fixedly connected to the outer side wall of the adjusting plate, and a water scraping assembly is arranged on the inner side wall of the adjusting plate.

[0007] As preferred, the wiper assembly comprises a motor a, the output shaft of the motor a is fixedly connected with a rotating rod, the surface of the rotating rod is rotatably connected with a hinged rod, and the end of the hinged rod away from the rotating rod is hingedly connected with a wiper plate.

[0008] As preferred, the drainage assembly comprises a drainage pipe, the inner side wall of the bottom end of the drainage pipe is in contact with a blocking ball, the outer wall of the blocking ball is fixedly connected with two groups of sliding rods at the bottom end, the sliding rods are slidingly connected with the inner wall of a fixed column, the bottom end of the outer wall of the two groups of sliding rods is elastically connected with the fixed column through a return spring, one end of the return spring is fixedly connected with the bottom end of the inner wall of the fixed column, the other end of the return spring is fixedly connected with the bottom end of the outer wall of the sliding rod, a vertical rod is fixedly connected with the center of the blocking ball, and the end of the vertical rod away from the blocking ball is fixedly connected with a contact ball.

[0009] As preferred, the belt pulley b is fixedly connected with the rotating center shaft of the impeller disc, the inner side surface of the adjusting disc is provided with a hole groove, the end of the convex rod away from the adjusting plate is hingedly connected with the inner wall of the hole groove of the adjusting disc, the adjusting disc is rotatably connected with the surface of the impeller disc, and the impeller disc is rotatably connected with the inner wall of the fan shell.

[0010] As preferred, the motor a is fixedly connected with the inner side wall of the adjusting plate, the surface of the rotating rod is provided with three groups of concave rods, and the hinged rod is hinged at the bottom end horizontal rod of the concave rod of the rotating rod.

[0011] As preferred, the wiper plate penetrates and is slidingly connected with the inner wall of the top end of the adjusting plate.

[0012] As preferred, the outer wall of the wiper plate is in contact with the inner side wall of the fan shell, and the outer wall of the wiper plate is in contact with the surface of the top end of the contact ball.

[0013] As preferred, the drainage pipe penetrates and is fixedly connected with the inner wall of the support frame, the fixed column is fixedly connected with the surface of the support frame, and the drainage pipe is fixedly connected with the inner wall of the bottom end of the fan shell.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1、In the present application, the motor b at the center of the impeller disc drives the rotation of the adjusting disc, the angle of the adjusting plate is flexibly switched between straight line and twisted type, different working condition requirements can be accurately matched, when high air volume is needed, the adjusting plate is in a straight line state, the air flow resistance is reduced, and the ventilation efficiency is improved; when high air pressure is needed, the adjusting plate is turned into a twisted type, the air compression capacity is enhanced, the intelligent adjustment enables the fan to maintain high-efficiency operation under different working conditions, and compared with the traditional fixed-impeller fan, the energy consumption can be effectively reduced.

[0016] 2、 In the application, the motor a in the wiper assembly drives the rotating rod, drives the wiper along the inner wall of the fan shell through the articulated rod, removes the attached water vapor in time, avoids the problem of increased impeller resistance and corrosion caused by water vapor.

[0017] 3、 In the application, when the wiper rotates to the contact ball position, the blocked ball is pushed to open the drain pipe, and the accumulated water is discharged; after the accumulated water is discharged, the reset spring drives the blocked ball to automatically reset, preventing air leakage. This automatic drainage mechanism ensures that the inside of the fan is always dry, prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall three-dimensional structure schematic diagram of the disclosed device;

[0019] Figure 2 It is the overall rear view structure schematic diagram of the disclosed device;

[0020] Figure 3 It is the support partial cross-section structure schematic diagram of the disclosed device;

[0021] Figure 4 It is the fan shell partial cross-section structure schematic diagram of the disclosed device;

[0022] Figure 5 It is the rear view separation state structure schematic diagram of the impeller disc and the adjusting disc of the disclosed device;

[0023] Figure 6 It is the front view separation state structure schematic diagram of the impeller disc and the adjusting disc of the disclosed device;

[0024] Figure 7 It is the impeller disc straight line state structure schematic diagram of the disclosed device;

[0025] Figure 8 It is the impeller disc twisted state structure schematic diagram of the disclosed device;

[0026] Figure 9 It is the adjusting disc partial cross-section structure schematic diagram of the disclosed device;

[0027] Figure 10 It is the Figure 4 A portion of the enlarged structure schematic diagram of the disclosed device.

[0028] Among them: 1, support; 2, drive motor; 3, fan shell; 4, air inlet; 5, exhaust tank; 6, pulley a; 7, pulley b;

[0029] 9, drainage assembly; 91, drain pipe; 92, blocked ball; 93, vertical rod; 94, contact ball; 95, sliding rod; 96, reset spring; 97, fixed column;

[0030] 10. Adjustable impeller mechanism; 101. Impeller disk; 102. Adjusting disk; 103. Fixing plate; 104. Connecting seat; 105. Adjusting plate; 106. Protruding rod; 107. Squeegee assembly; 1071. Motor a; 1072. Rotating rod; 1073. Hinge rod; 1074. Squeegee; 108. Motor b;

[0031] 11. Support frame. Detailed Implementation

[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0033] like Figures 1-3 As shown, one embodiment of the present invention provides an energy-saving rotary fan, including a bracket 1. Mounting holes are provided at the four corners of the bottom of the bracket 1, allowing for installation and fixation of the entire unit. A drive motor 2 is fixedly connected to one side of the top of the bracket 1, and a support frame 11 is fixedly connected to the other side of the top of the bracket 1. A fan housing 3 is fixedly connected to the top of the outer wall of the support frame 11. An exhaust tank 5 is provided on the outer side wall of the fan housing 3, and a pressure gauge is installed at the upper end of the exhaust tank 5. Through the rotation of the adjustable impeller mechanism 10 inside the fan housing 3, external air can be... The air enters the interior of the fan housing 3 through the air inlet 4 and then into the interior of the exhaust tank 5. The output shaft of the drive motor 2 is fixedly connected to a pulley a6, and the pulley a6 is connected to a pulley b7 via a belt drive. The top of the fan housing 3 is provided with an air inlet 4, which is existing technology. When the outside air is drawn into the interior of the fan housing 3, it can filter the dust and impurities in the air. The inner wall of the bottom of the fan housing 3 is provided with a drainage component 9, and the inner wall of the fan housing 3 is provided with an adjustable impeller mechanism 10. The end of the output shaft of the adjustable impeller mechanism 10 is fixedly connected to the pulley b7.

[0034] like Figures 4-6As shown, the adjustable impeller mechanism 10 includes an impeller disc 101 rotatably connected to the inner wall of the fan shell 3, a belt pulley b7 fixedly connected to the rotation center axis of the impeller disc 101, and the belt pulley b7 is driven to rotate synchronously with the impeller disc 101 when rotating, so as to suck external air into the inside of the fan shell 3. The center of the impeller disc 101 is fixedly connected with a motor b108, and the output shaft of the motor b108 is fixedly connected with an adjusting disc 102. The motor b108 is an induction motor, and its working principle is that the stator coil generates a rotating magnetic field through alternating current, and the rotor rotates under the action of the rotating magnetic field to obtain a rotating torque. The motor b108 is in a rotating environment, and its working principle is still applicable. The inner surface of the adjusting disc 102 is provided with a hole groove, and the end of the protruding rod 106 away from the adjusting plate 105 is hingedly connected to the inner wall of the hole groove of the adjusting disc 102. When the adjusting disc 102 is driven to rotate by the motor b108, the protruding rod 106 is driven to rotate synchronously, and when the protruding rod 106 rotates with the adjusting disc 102, the adjusting plate 105 is extended in the inner wall of the connecting seat 104, and the connecting seat 104 is rotated in the inner wall of the fixed plate 103, so as to adjust the overall impeller angle to be straight or twisted, so as to adjust different working conditions.

[0035] Referring to Figures 6-8 , the adjusting disc 102 is rotatably connected to the surface of the impeller disc 101, the inner arc surface of the impeller disc 101 is fixedly connected with a fixed plate 103, the inner wall of the top end of the fixed plate 103 is hingedly connected with a connecting seat 104, the inner wall of the connecting seat 104 is slidingly connected with an adjusting plate 105, the outer side wall of the adjusting plate 105 is fixedly connected with a protruding rod 106, and the adjusting disc 102 is driven to rotate, which drives the protruding rod 106 to rotate synchronously, and the protruding rod 106 drives the adjusting plate 105 to extend in the inner wall of the connecting seat 104, and also drives the connecting seat 104 to rotate around the rotation center point of the fixed plate 103, so as to adjust the angle of the overall impeller. The inner side wall of the adjusting plate 105 is provided with a wiper assembly 107.

[0036] Referring to Figure 8 and Figure 9The wiper assembly 107 comprises a motor a 1071, the output shaft of the motor a 1071 is fixedly connected with a rotating rod 1072, the motor a 1071 adopts the same model as the motor b 108, the motor a 1071 is fixedly connected to the inner side wall of the adjusting plate 105, the surface of the rotating rod 1072 is provided with three groups of concave rods, the articulated rod 1073 is articulated to the cross rod at the bottom end of the concave rod of the rotating rod 1072, when the rotating rod 1072 rotates, the concave rods on the surface thereof rotate around the center of the output shaft of the motor a 1071, so that the articulated rod 1073 can be pushed by the rotating rod 1072 to move the scraper 1074 upward on the inner wall of the adjusting plate 105, so that the water vapor and the like attached in the inside of the fan shell 3 can be scraped off, so as to avoid being adsorbed in the inside of the fan shell 3, affecting the overall rotating energy consumption, the surface of the rotating rod 1072 is rotatably connected with the articulated rod 1073, one end of the articulated rod 1073 away from the rotating rod 1072 is articulated with the scraper 1074, the outer wall of the scraper 1074 is in contact with the inner side wall of the fan shell 3, a groove is formed at the center of the bottom end of the fan shell 3, so that when the scraper 1074 is scraped, the water vapor in the inside is pushed into the groove at the bottom end of the fan shell 3, the scraper 1074 penetrates and is slidably connected to the inner wall of the top end of the adjusting plate 105, only the inside of one group of adjusting plates 105 of the wiper assembly 107 is provided.

[0037] With reference to Figures 3-4 and Figure 10The drainage assembly 9 comprises a drainage pipe 91 which is fixedly connected through the inner wall of the support frame 11, fixedly connected to the inner wall of the bottom end of the fan housing 3, and has a blocking ball 92 in contact with the inner side wall of the bottom end of the drainage pipe 91. The drainage pipe 91 is arranged so that the water vapor and precipitated water in the fan housing 3 fall into the interior of the drainage pipe 91, and the position of the drainage pipe 91 corresponds to the groove at the bottom of the fan housing 3. The top end of the blocking ball 92 is provided with a spherical shape and fits the inner diameter of the bottom end of the drainage pipe 91. Two groups of sliding rods 95 are fixedly connected to the outer wall of the bottom end of the blocking ball 92 and are slidingly connected to the inner wall of the fixed column 97. The outer wall of the scraper 1074 is in contact with the surface of the top end of the contact ball 94. When the scraper 1074 moves outward and rotates with the impeller disc 101, it will contact the contact ball 94, thereby pushing the contact ball 94 to move synchronously with the vertical rod 93 and the blocking ball 92, so as to open the water outlet at the bottom end of the drainage pipe 91, thereby discharging the water scraped by the scraper 1074 from the fan housing 3 outward along the gap of the drainage pipe 91. The fixed column 97 is fixedly connected to the surface of the support 1. The bottom end of the outer wall of the two groups of sliding rods 95 is elastically connected to the fixed column 97 through the return spring 96. One end of the return spring 96 is fixedly connected to the bottom end of the inner wall of the fixed column 97, and the other end of the return spring 96 is fixedly connected to the bottom end of the outer wall of the sliding rod 95. The return spring 96 automatically resets the position of the blocking ball 92 after it is lowered to drive the sliding rod 95 to descend. The vertical rod 93 is fixedly connected to the center of the blocking ball 92, and the contact ball 94 is fixedly connected to the end of the vertical rod 93 away from the blocking ball 92.

[0038] Working principle: After the driving motor 2 is started, the output shaft drives the belt pulley a6 to rotate, which drives the belt pulley b7 to rotate synchronously through the belt drive. The belt pulley b7 is fixedly connected to the rotating center shaft of the impeller disc 101, thereby driving the impeller disc 101 to rotate in the inner wall of the fan housing 3. When the impeller disc 101 rotates, a negative pressure is formed in the fan housing 3. Under the action of the pressure difference, the external air enters the fan housing 3 after filtering dust and impurities through the air inlet 4, accelerates under the action of the impeller disc 101, and flows to the exhaust tank 5, and finally is discharged through the exhaust tank 5, completing the air conveying process. The pressure gauge on the exhaust tank 5 can monitor the internal pressure in real time to ensure that the fan works within a safe pressure range.

[0039] When the motor b108 is started, the output shaft drives the adjusting disc 102 to rotate, the inner hole groove of the adjusting disc 102 is hinged with the convex rod 106, the convex rod 106 is driven to move synchronously when the adjusting disc 102 rotates, the other end of the convex rod 106 is connected with the adjusting plate 105, the adjusting plate 105 is driven to slide in the inner wall of the connecting seat 104 and extend, at the same time, the connecting seat 104 rotates in the inner wall of the fixed plate 103, so as to change the angle of the adjusting plate 105, through the forward and reverse rotation of the adjusting disc 102, the angle of the adjusting plate 105 can be switched between the straight line and the twisted type, so as to adapt to different working conditions, when high air flow is needed, the angle of the adjusting plate 105 is adjusted to the straight line state, the air flow is increased; when high air pressure is needed, the angle of the adjusting plate 105 is adjusted to the twisted type, the air pressure is increased, so as to realize the dynamic optimization of the fan performance and reduce the energy consumption.

[0040] When there is condensed water or water vapor in the inner wall of the fan shell 3, the motor a1071 is started to drive the rotating rod 1072 to rotate, the concave rod on the surface of the rotating rod 1072 drives the hinged rod 1073 to move, the hinged rod 1073 drives the scraper 1074 to slide upward in the inner wall of the adjusting plate 105, the outer wall of the scraper 1074 is in contact with the inner side wall of the fan shell 3, the attached water vapor is scraped off, with the rotation of the impeller disc 101, the scraper 1074 pushes the water vapor to the groove at the bottom end of the fan shell 3, so as to avoid the accumulation of water vapor affecting the efficiency of the fan, since only one adjusting plate 105 is provided with the water scraping assembly 107, in the process of one rotation of the impeller disc 101, the scraper 1074 can complete the water vapor cleaning of the entire inner wall of the fan shell 3.

[0041] When the scraper 1074 rotates to the contact ball 94 position with the impeller disc 101, the scraper 1074 pushes the contact ball 94 to move downward, the contact ball 94 drives the plug ball 92 to descend synchronously through the vertical rod 93, the plug ball 92 descending makes the water outlet at the bottom end of the drain pipe 91 open, the accumulated water in the groove at the bottom of the fan shell 3 is discharged through the drain pipe 91 under the action of gravity, when the plug ball 92 descends, the sliding rod 95 slides in the inner wall of the fixed column 97 and compresses the return spring 96, when the scraper 1074 moves away from the contact ball 94, the elastic force of the return spring 96 makes the sliding rod 95 rise, drives the plug ball 92 to reset, reseals the drain pipe 91, prevents air leakage, this drainage control mode ensures that the fan automatically removes the accumulated water during operation, and maintains the internal pressure stable.

[0042] In the description of the application, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the application and not requiring the application to be necessarily constructed or operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In the application, "connected" and "connected" should be understood broadly, for example, it can be connected, or it can be detachable; it can be directly connected, or indirectly connected through intermediate components, and the specific meaning of the above terms can be understood according to the specific circumstances for those skilled in the art.

[0043] The above is the preferred operation mode of the application, and the description of the specific operation mode is only for better understanding the idea of the application. For those skilled in the art, according to the principles of the application, several improvements or equivalent replacements can also be made, which are also considered to fall within the scope of protection of the application.

Claims

1. An energy saving rotary blower comprising a support (1), characterized in that: The side of the top end of the support (1) is provided with a driving motor (2), and the other side of the top end of the support (1) is provided with a support frame (11), and the top end of the support frame (11) is provided with a fan shell (3), and the outer side wall of the fan shell (3) is provided with an exhaust tank (5), and the output shaft end of the driving motor (2) is provided with a belt pulley a (6), and the belt pulley a (6) is connected with a belt pulley b (7) through a belt drive, and the top end of the fan shell (3) is provided with an air inlet (4), and the inner wall of the bottom end of the fan shell (3) is provided with a drainage assembly (9), and the inner wall of the fan shell (3) is provided with an adjustable impeller mechanism (10), and the rotating center shaft end of the adjustable impeller mechanism (10) is fixedly connected with the belt pulley b (7). The adjustable impeller mechanism (10) comprises an impeller disc (101), a motor b (108) is fixedly connected at the center of the impeller disc (101), an adjusting disc (102) is arranged at the output shaft end of the motor b (108), a fixed plate (103) is fixedly connected to the inner arc surface of the impeller disc (101), a connecting seat (104) is hingedly connected to the inner wall of the top end of the fixed plate (103), an adjusting plate (105) is slidably connected to the inner wall of the connecting seat (104), a protruding rod (106) is fixedly connected to the outer side wall of the adjusting plate (105), and a water scraping assembly (107) is arranged on the inner side wall of the adjusting plate (105).

2. The energy-saving rotary fan according to claim 1, characterized in that: The water scraping assembly (107) comprises a motor a (1071), a rotating rod (1072) is fixedly connected to the output shaft of the motor a (1071), a hinged rod (1073) is rotatably connected to the surface of the rotating rod (1072), and a scraper (1074) is hinged to the end of the hinged rod (1073) away from the rotating rod (1072).

3. The energy-saving rotary fan according to claim 1, characterized in that: The drainage assembly (9) comprises a drainage pipe (91), a blocking ball (92) is in contact with the inner side wall of the bottom end of the drainage pipe (91), two groups of sliding rods (95) are fixedly connected to the bottom end of the outer wall of the blocking ball (92), the sliding rods (95) are slidably connected to the inner wall of a fixed column (97), the bottom ends of the outer walls of the two groups of sliding rods (95) are elastically connected to the fixed column (97) through a reset spring (96), one end of the reset spring (96) is fixedly connected to the bottom end of the inner wall of the fixed column (97), the other end of the reset spring (96) is fixedly connected to the bottom end of the outer wall of the sliding rod (95), a vertical rod (93) is fixedly connected to the center of the blocking ball (92), and the end of the vertical rod (93) away from the blocking ball (92) is fixedly connected to a contact ball (94).

4. The energy-saving rotary fan according to claim 1, characterized in that: The rotating center shaft of the belt pulley b (7) and the impeller disc (101) is fixedly connected, the inner side surface of the adjusting disc (102) is provided with a hole groove, the end of the protruding rod (106) away from the adjusting plate (105) is hinged to the inner wall of the hole groove of the adjusting disc (102), the adjusting disc (102) is rotatably connected to the surface of the impeller disc (101), and the impeller disc (101) is rotatably connected to the inner wall of the fan shell (3).

5. The energy saving rotary fan according to claim 2, wherein: The motor a (1071) is fixedly connected to the inner side wall of the adjusting plate (105), the surface of the rotating rod (1072) is provided with three groups of concave rods, and the hinged rod (1073) is hinged to the horizontal rod at the bottom end of the concave rod of the rotating rod (1072).

6. The energy-saving rotary fan according to claim 2, characterized in that: The scraper (1074) is penetratingly and slidingly connected to the inner wall of the top end of the adjusting plate (105).

7. The energy-saving rotary fan according to claim 2, wherein: The outer wall of the scraper (1074) is in contact with the inner side wall of the fan shell (3), and the outer wall of the scraper (1074) is in contact with the surface of the top end of the contact ball (94).

8. The energy-saving rotary fan according to claim 3, characterized in that: The drain pipe (91) is penetratingly and fixedly connected to the inner wall of the support frame (11), the fixed column (97) is fixedly connected to the surface of the support frame (1), and the drain pipe (91) is fixedly connected to the inner wall of the bottom end of the fan shell (3).

Images