Residual pressure power generation fan

Abstract

The invention discloses a residual pressure power generation fan, and belongs to ventilation equipment manufacturing. The invention aims to convert the residual pressure (residual energy) discharged to the atmosphere by the fan into electric energy again, so as to realize energy recovery and cyclic utilization. The energy consumption of ventilation equipment is reduced by 49%-74.5%; the emission is reduced by 80%; the noise is reduced by 80%; and the efficiency is improved by 2-3 times. The residual pressure power generation fan is a necessary standard of future ventilation equipment (products).

Description

Technical field: ventilation equipment Technical Background The application of ventilation equipment is very extensive. Almost all products that emit into the atmosphere cannot do without ventilation equipment: household appliances such as range hoods, air conditioner outdoor units, ventilators, vacuum cleaners, etc.; indoor and underground places: shopping malls, hotels, restaurants, subways, mines, underground buildings, etc.; refrigeration and heat dissipation equipment such as cold storage, cold storage vehicles (ships), computers, artificial intelligence, electromechanical equipment, etc.; industrial emission equipment such as power generation, smelting, chemical industry, papermaking, pharmaceuticals, etc. The characteristics of ventilation equipment (products) are: while realizing the ventilation function, 70%-85% of the energy is discharged into the atmosphere in vain, and this part of the energy can be recovered. With the depletion of fossil energy, the popularization of artificial intelligence technology, and the advent of the era of electrification, the power gap will become larger and larger, and air pollution will become more and more serious. Human beings will face two major crises: energy shortage and air pollution. Energy conservation and emission reduction are particularly important. The residual pressure power generation fan was produced under such a background.

[0002] Working principle of residual pressure power generation fan Before understanding how the residual pressure power generation fan generates electricity, we must first popularize the principle of power generation. The working principle of wind power, hydropower, thermal power, nuclear power, solar power generation, etc. is to use residual pressure (pressure difference) to generate electricity. It can be seen that all residual pressure (pressure difference) can generate electricity. Although the forms of ventilation equipment are diverse, the working principle is exactly the same. The motor drives the impeller to rotate to form a pressure difference, so that the pressure at the intake end is lower than the atmospheric pressure (negative pressure), and the pressure at the exhaust end is higher than the atmospheric pressure (residual pressure). Since the air always moves in the direction of low pressure, the air will be sucked in from the intake end to form wind, and then discharged from the exhaust end. The energy conversion relationship is: electrical energy 1→wind energy, wind energy (residual pressure) is lost in vain (discharged into the atmosphere). The residual pressure power generation fan converts the wind energy (residual pressure) at the exhaust end of the ventilation equipment into electrical energy to achieve energy recovery. The working principle of the residual pressure power generation fan is basically the same as that of the fan. The difference is that there are four impellers on the fan shaft, both ends inhale air at the same time, and the middle impeller accelerates (to improve efficiency). The function of the generator is to convert the wind energy (excess pressure) at the exhaust end into electrical energy again. The energy conversion relationship is: electrical energy 1→wind energy→electrical energy 2. Obviously, wind energy (excess pressure) is converted into electrical energy 2, realizing energy recovery and achieving the purpose of energy conservation and emission reduction.

[0003] Technical characteristics and main technical indicators of residual pressure power generation fan 1. Technical features of the residual pressure power generation fan: summarized as "87654321". Detailed description: Eight characteristics: advancement, scientificity, feasibility, rationality, symmetry, stability, safety, and universality; Seven highs: high technology, high speed, high pressure difference, high efficiency, high energy saving, high cost performance, and high added value; Six lows: low energy consumption, low emissions, low pollution, low noise, low loss, and low cost; Five new: new technology, new power, new energy, new track, and new model; Four mutual transformations: yin and yang mutual transformation, wind power mutual transformation, electromagnetic mutual transformation, and dynamic and static mutual transformation; Three same: coaxial, concentric, and codirectional; Two unchanged: the working principle remains unchanged, and the product structure remains unchanged; One recovery: energy recovery. 2. The main technical indicators of the residual pressure power generation fan: the conversion rate of the axial flow fan is between 70% and 85% (excluding various losses), and the conversion rate of the generator is also between 70% and 85%. Therefore, the recoverable energy is between 49% and 74.5%; the air intake volume increases by 2-3 times; the emission is reduced by 80%; and the noise is reduced by 80%.

[0004] The significance of residual pressure power generation fan Energy crisis and air pollution are two major crises in today's society, and energy conservation and emission reduction are urgent tasks. Ventilation equipment is not only a large energy consumer, but also almost all equipment and products that emit into the atmosphere cannot do without ventilation equipment.

[0005] Technical solution for residual pressure power generation fan The present invention is composed of a fan and a generator and accessories. The outer cylinder contains a motor, a generator, an air duct cylinder, a cylinder cover, and four impellers on the motor shaft. The impeller is in the cylinder, and the fan sucks air from both ends of the cylinder at the same time to ensure that the air enters the cylinder to the maximum extent. The two middle impellers accelerate and change direction. The motor is fixed in the front half of the cylinder by a bracket, and the right inner impeller rotates around the motor. The outer side of the inner impeller is the air duct cylinder. There are several curved air ducts around the air duct cylinder. The bottom cover of the air duct cylinder blocks the wind from going to the other end. The outer side of the air duct cylinder is a generator driving impeller. The generator driving wheel rotates around the air duct cylinder. There is a fixed disk on the driving wheel. The fixed disk has two functions: one is to fix the driving wheel on the sleeve shaft of the generator, and the other is to separate the air intake at both ends to avoid the formation of wind force collision. There is a generator rotor on the sleeve shaft, and the motor shaft passes through the generator sleeve shaft. A motor bearing is set between the motor shaft and the sleeve shaft. Bearings are set between the sleeve shaft and the two bottom covers of the generator. The generator is fixed to the rear end of the left air duct cylinder by a bracket, the left inner impeller rotates around the generator, the left air duct cylinder is outside the left inner impeller, and the left half of the driving wheel rotates around the left air duct cylinder. The residual pressure power generation fan works like this: start the motor, the four impellers rotate at the same time, and the air is sucked into the cylinder from both ends of the outer cylinder to form wind. The acceleration and change of direction of the inner impeller form a stronger wind force, and then the change of direction of the curved air duct makes the wind force act vertically on the driving wheel of the generator, driving the driving wheel to rotate and generate electricity, which in turn provides part of the electricity for the motor. The residual wind is discharged from the side of the outer cylinder, thus realizing energy recovery. According to the different requirements of different ventilation equipment, the starting end (intake end) and the terminal end (discharge end) of the fan are connected to the corresponding supporting equipment. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 The sequence diagram of fan components Figures 2 to 12 is a component diagram, where Figure 2 :External impeller (1, 24), Figure 3 :Cylinder, air duct, air duct, Figure 4 :Stand(5,23), Figure 5 :Motor, Figure 6 :Inner impeller (7), Figure 7 :Inner impeller (19), Figure 8 :Drive impeller (11, 13), Fig. 9 :Motor shaft (9), Fig.10 :Generator sleeve shaft (15), Fig.11 :Generator fixed bottom cover, Fig.12 :Generator(18) Fig.13 The straight cross-section of the fan Fig.14 Cross-sectional view of the fan Fig.15 , 16 Product appearance picture Fig.17 The cross-sectional plan and operation diagram of the fan DETAILED DESCRIPTION like Figure 1 , twoAs shown in FIGS. 17 and 18, the outer cylinder (25) has a cylinder (2, 22) inside, the outer impeller (1, 24) is inside the cylinder (2, 22), the air duct cylinder (3, 20) is connected to the cylinder (2, 22), and a plurality of curved air ducts (4, 21) are evenly distributed around the air duct cylinder (3, 20); the front end of the motor (6) has a motor bracket (5), the motor bracket (5) is fixed in the cylinder (2), and the inner impeller (7, 19) The outer impeller (1, 24) is fixed on the motor shaft (9), the inner impeller (7) rotates around the motor (6), and the inner impeller (19) rotates around the generator (18). The fan rear cover (8, 17) is the bottom surface of the air duct cylinder (3, 20) to block the wind from going inside; the generator driving wheel (11) rotates around the air duct cylinder (3, 20), and the driving wheel (11) is provided with a fixed disc (13), and the fixed disc (13) is fixed to the generator sleeve shaft (15). The right end of the generator is provided with a plurality of air intake ports, and the air intake ports at both ends are separated to prevent wind from charging each other. The outer bearing (14) of the sleeve shaft (15) is embedded in the front and rear bottom covers of the generator (18). The motor shaft (9) passes through the sleeve shaft (15) and is connected via the bearing (12). The fixed bottom cover (17) of the generator is fixed to the rear end of the air duct cylinder (20). The motor shaft bracket (23) is fixed in the cylinder (22). The outer sleeve (25) is provided with an air outlet (26). The cylinders (2, 22) The radius is r, the height is (1 / 2) r, the height of the air duct cylinder (3, 20) is (1 / 2) r, the outer diameter of the motor (6) is (1 / 3) r, the blade length of the inner impeller (7) is (1 / 2) r, the width is (1 / 3) r, the air outlet of the air duct (4, 21) is 1 / 4 of the air inlet, the radius of the generator driving wheel (11) is r, the blade length is r, and the width is (1 / 4) r, and fans of different models are enlarged or reduced according to this ratio. The fan is suitable for all ventilation equipment. According to the different requirements of different ventilation equipment, the starting end (inlet end) and the terminal end (discharge end) of the fan are connected to the corresponding supporting equipment. The residual pressure power generation fan works as follows: the motor (6) is started, and the impellers (1, 7, 19, 24) rotate simultaneously to form negative pressure, and air is sucked into the cylinder to form wind. Through the change of direction of the curved air duct (4, 21), the wind force acts vertically on the blades of the generator drive wheel (11), and the drive wheel (11) drives the generator rotor (16) to rotate to generate electricity, and the residual wind is discharged from the cylinder through the side air outlet (26) of the outer cylinder (25).

Claims

1. A fan for generating electricity by utilizing residual pressure, characterized in that: The outer cylinder (25) contains a cylinder (2, 22), the outer impeller (1, 24) is inside the cylinder (2, 22), the air duct cylinder (3, 20) is connected to the cylinder (2, 22), and a plurality of curved air ducts (4, 21) are evenly distributed around the air duct cylinder (3, 20); the front end of the motor (6) is provided with a motor bracket (5), the motor bracket (5) is fixed in the cylinder (2), the inner impeller (7, 19) and the outer impeller (1, 24) are fixed on the motor shaft (9), the inner impeller (7) rotates around the motor (6), and the inner impeller (19) rotates around the generator (18), the fan rear cover (8, 17) is the bottom surface of the air duct cylinder (3, 20), and blocks the wind from going inside; the generator driving wheel (11) rotates around the air duct cylinder (3, 20), and the driving wheel (11) is provided with a fixed disc (13), and the fixed disc (13) is fixed on the generator shaft (9). The right end of the motor sleeve shaft (15); the outer bearing (14) of the sleeve shaft (15) is embedded in the front and rear bottom covers of the generator (18); the motor shaft (9) passes through the sleeve shaft (15) and is connected through the bearing (12); the generator fixed bottom cover (17) is fixed to the rear end of the air duct cylinder (20); the motor shaft bracket (23) is fixed in the cylinder (22); the side of the outer cylinder (25) is provided with an air outlet (26); the radius of the cylinder (2, 22) is r, and the height is (1 / 2) r; the height of the air duct cylinder (3, 20) is (1 / 2) r; the outer diameter of the motor (6) is (1 / 3) r; the blade length of the inner impeller (7) is (1 / 2) r, and the width is (1 / 3) r; the air outlet of the air duct (4, 21) is 1 / 4 of the air inlet; the radius of the generator driving wheel (11) is r, and the blade length is r, and the width is (1 / 4) r. Different types of fans are enlarged or reduced according to this ratio. This fan is suitable for all ventilation equipment. According to the different requirements of different ventilation equipment, the starting end (air inlet end) and the terminal end (air discharge end) of the fan are connected to the corresponding supporting equipment.

2. The fan according to claim 1, characterized in that: The outer cylinder (25) contains a cylinder (2, 22), the outer impeller (1, 24) is inside the cylinder (2, 22), the air duct cylinder (3, 20) is connected to the cylinder (2, 22), and a plurality of curved air ducts (4, 21) are evenly distributed around the air duct cylinder (3, 20).

3. The fan according to claim 1, characterized in that: A support (5) is provided at the front end of the motor (6), the support (5) is fixed in the cylinder (2), an inner impeller (7, 19) and an outer impeller (1, 24) are fixed on the motor shaft (9), the inner impeller (7) rotates around the motor (6), and the inner impeller (19) rotates around the generator (18), and the fan rear cover (8, 8) is the bottom surface of the air duct cylinder (3, 20).

4. The fan according to claim 1, characterized in that: The generator driving wheel (11) rotates around the air duct cylinder (3, 20), and a fixed disc (13) is arranged on the driving wheel (11), and the fixed disc (13) is fixed on the right end of the generator sleeve shaft (15).

5. The fan according to claim 1, characterized in that: the sleeve The outer bearing (14) of the shaft (15) is embedded in the front and rear bottom covers of the generator (18), the motor shaft (9) passes through the sleeve shaft (15) and is connected via the bearing (12), the generator bracket (17) is fixed at the rear end of the air duct cylinder (20), the motor shaft bracket (23) is fixed in the cylinder (22), and the outer sleeve (25) is provided with an air outlet (26).

6. The fan according to claim 1, characterized in that: The radius of (2, 22) is r, and the height is (1 / 2)r, the height of the air duct cylinder (3, 20) is (1 / 2)r, the outer diameter of the motor (6) is (1 / 3)r, the blade length of the inner impeller (7) is (1 / 2)r, and the width is (1 / 3)r, the air outlet of the air duct (4, 21) is 1 / 4 of the air inlet, the radius of the generator drive wheel (11) is r, the blade length is r, and the width is (1 / 4)r, and fans of different models are enlarged or reduced according to this ratio.

7. The fan according to claim 1, characterized in that: Fans are suitable for all ventilation equipment. According to the different requirements of different ventilation equipment, the starting end (air inlet end) and the terminal end (air discharge end) of the fan are connected to the corresponding supporting equipment.

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