CN202019637U - Symmetrically-distributed propeller type self gas compressing, gas sucking and water sucking oxygen increasing machine - Google Patents

Abstract

The utility model discloses a symmetrically arranged propeller type self-pressurized air, air suction, water suction aeration machine. The motor fixed on the scale beam transmits the power to the hollow shaft through the chain, and the inner spiral blade conical compressor wheel with through holes at the bottom is installed on the upper end surface of the hollow shaft. The hollow shaft is covered with a hollow sleeve, the upper end of the hollow sleeve is connected with the beam, the other end of the beam is fixed with a floating ball, the lower end of the hollow sleeve is connected with the suction chamber, the end is equipped with a driving bevel gear, two driven The bevel gears are mounted on their respective hollow output shafts. The other end of the hollow output shaft extends out of the suction chamber, and the end is equipped with a propeller and a diffuser, and the protruding part including the propeller and the diffuser is surrounded by a shroud fixed on the suction chamber. The water suction pipe is divided into two after entering from the bottom surface of the suction chamber, and the two separated pipes stretch into the hollow output shaft respectively. The utility model adopts a compressor wheel to compress air and a propeller to inhale air, so that the air intake is large; adding a water suction pipe strengthens the gas-liquid mixing and shearing action; and improves the oxygen increasing capacity.

Description

A symmetrically arranged propeller type self-pressurized air, suction, water suction aerator

technical field

The utility model relates to an aerator, in particular to a symmetrically arranged propeller type self-pressurized air, air suction, water absorption aerator.

Background technique

Aeration machine is a kind of machine often used in fish farming, which can quickly transfer the "oxygen" in the air to the farming water. It can not only solve the problem of fish floating head caused by lack of oxygen in pond culture, but also can Eliminate harmful gases, promote convective exchange of water bodies, improve water quality conditions, reduce feed coefficient, increase fish pond activity and primary productivity, thereby increasing stocking density, increasing feeding intensity of breeding objects, promoting growth, greatly increasing yield per mu, and fully reaching the goal of breeding purpose of increasing income. The measures taken when designing the aerator include: 1) Use mechanical parts to stir the water body to promote convective exchange and interface renewal; 2) Disperse the water into fine droplets and spray them into the gas phase to increase the contact area of water-gas; 3) Through negative pressure inhalation, the gas is dispersed into micro-bubbles and pressed into the water.

The aerators currently on the market mainly include: 1) The impeller-type aerator increases the dissolved oxygen in the water by stirring the water body and the principle of aeration. The effect of promoting water mixing is generally used for large-scale pond culture with a water depth of more than 1 meter. 2) The waterwheel type aerator uses the impact of the rotating paddle when it enters the water and the centrifugal action when it exits the water to stir up water splashes on the water surface and promote the dissolution of oxygen in the air into the water, which has good oxygenation and promotion. The effect of water flow is suitable for ponds with deep silt and an area of 1000~2540㎡. 3) The jet-type aerator is composed of a submersible pump and a jet tube. Its structure is simple, and the water in the pump is ejected at high speed from the nozzle in the jet tube. Negative pressure is generated, air is sucked in, water and air are mixed in the mixing chamber, and then pressed out by the diffusion tube, and dissolved oxygen will diffuse along with the water flow in a straight line. It is very suitable for deep-water fish ponds with high fish density. 4) The water spray aerator uses a water pump to send water into the nozzles installed in the middle of the fish pond and on the shore, sprays the water and falls in the form of rainfall, and makes the water contact with the air to increase the dissolved oxygen. The machine is only suitable for small shallow ponds. At the same time, it also has an artistic ornamental effect, which is suitable for use in gardens or fish ponds in tourist areas. 5) Inflatable aerator, the host is an air compressor or blower. When the air is pressurized and passes through the sand filter core or microporous plastic pipe installed on the bottom of the water, tiny air bubbles are discharged. During the rising process of the air bubbles, part of the oxygen dissolves into the water, forming water body movement. This machine is suitable for use in deep water pools. It is characterized by a large amount of oxygen, and the disadvantage is that the cost is high. 6) The inhalation aerator uses the rotating impeller submerged in the water to stir and push the middle and lower layers of water forward, turning stagnant water into living water and generating negative pressure. The air is sucked into the middle and lower layers through the negative pressure tube oxygen-poor water. Therefore, the mixing force is strong, and the oxygenation ability to the lower water is strong.

Contents of the invention

The purpose of the utility model is to provide a symmetrically arranged propeller type self-pressurized air, air suction, water absorption aerator to improve the oxygenation efficiency.

In order to achieve the above object, the technical scheme that the utility model adopts is:

The motor transmits the power to the hollow shaft through chain transmission; the upper end surface of the hollow shaft is connected with the bottom of the compressor wheel, which is a conical body with inner helical blades, and the through hole at the bottom of the compressor wheel communicates with the hole of the hollow shaft; The shaft is covered with a hollow sleeve, the upper end of the hollow sleeve is connected to one end of the scale beams on both sides, and the other ends of the two scale beams are respectively fixed with floating balls; the motor is fixed on the scale beam; between the two ends of the hollow sleeve and the hollow shaft Rolling bearings are installed between them; the lower end surface of the hollow sleeve is connected with the suction chamber; the end of the hollow shaft is equipped with a driving bevel gear, and the driving bevel gear meshes with the driven bevel gears on both sides, and the two driven bevel gears are installed in their respective On one end of the hollow output shaft, the three bevel gears are contained in the suction chamber; the other ends of the two hollow output shafts protrude from the suction chamber, and bearings are installed between the hollow output shaft and the suction chamber, and the two hollow The other end of the output shaft is equipped with a propeller and a diffuser; the parts of the two hollow output shafts protruding from the suction chamber, including the propeller and the diffuser, are set in their respective shrouds, and the two shrouds are fixed on the sides of the suction chamber. The end face is coaxial with the respective hollow output shafts; the water suction pipe enters from the bottom surface of the suction chamber and is fixed on the suction chamber. After entering the suction chamber, the water suction pipe is divided into two parts. Inside the hollow output shaft.

The shape of the two diffusers is a cone, the diameter of the large head of the cone is equal to the diameter of the hub of the two propellers, and there is a tapered hole inside the two diffusers, the diameter of the small head of the tapered hole is the same as the inner diameter of the respective hollow output shaft Equal, there are helical blades on the conical surface of the cone hole, and the helical direction of the helical blades is opposite to that of the respective propellers.

There are eight strips at the end of the two wind deflectors close to the suction chamber, one end of the eight wind deflectors is the connecting bottom plate of the two wind deflectors, and the other end is a cylindrical tube, and there are many small holes on the cylindrical tube. After assembly, the end faces of the two shrouds are 80-150mm longer than the end faces of the two diffusers.

The beneficial effect that the utility model has is:

The utility model comprehensively utilizes various oxygen-increasing measures: the high-speed rotation of the propeller stirs the water body to promote convective exchange and the renewal of the water-air interface; the high-speed rotation of the propeller generates negative pressure, thereby producing the effect of air suction and water absorption; the high-speed rotation of the compressor wheel is used to generate compressed air, The intake volume is greatly increased; the addition of the suction pipe produces a double-layer annular gas-liquid interface, which greatly increases the contact area; the inner spiral of the diffuser is opposite to the spiral direction of the propeller, increasing the shearing effect between water and gas, with small holes The air deflector disperses the bubbles into smaller bubbles, further increases the contact area of water and air, and improves the efficiency of oxygenation. There are two sets of propellers arranged symmetrically, theoretically the aerator is balanced in the pond, reducing the difficulty of fixing the aerator in the pond.

Description of drawings

Fig. 1 is a schematic diagram of the transmission principle of the utility model. the

Fig. 2 is a cross-sectional view of the shroud along the central axis.

Fig. 3 is a cross-sectional view along line A-A of Fig. 2 .

Fig. 4 is a B-B sectional view of Fig. 2 .

Fig. 5 is a partial assembly and relative position schematic diagram of the shroud, suction pipe, hollow output shaft, propeller and diffuser.

In the figure: 1, motor, 2, hollow shaft, 3, compressor wheel, 4, hollow sleeve, 5, scale beam, 6, floating ball, 7, rolling bearing, 8, suction chamber, 9, driving bevel gear, 10, 10', two driven bevel gears, 11, 11', hollow output shaft, 12, 12', bearing, 13, 13', propeller, 14, 14', diffuser, 15, 15', shroud , 16, suction pipe.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figures 1 to 5, the motor 1 of the utility model transmits power to the hollow shaft 2 through a chain transmission; the upper end surface of the hollow shaft 2 is connected with the bottom of the compressor wheel 3, and the compressor wheel 3 is a cone with inner helical blades The bottom of the compressor wheel 3 has a through hole communicating with the hole of the hollow shaft 2; the hollow shaft 2 is covered with a hollow sleeve 4, the upper end of the hollow sleeve 4 is connected with one end of the beam 5, and the other end of the beam 5 is fixed with a floating The ball 6; the motor 1 is fixed on the beam 5; rolling bearings 7 are installed between the two ends of the hollow sleeve 4 and the hollow shaft 3; the lower end surface of the hollow sleeve 4 is connected with the suction chamber 8; the end of the hollow shaft 3 is installed There is a driving bevel gear 9, and the driving bevel gear 9 meshes with the driven bevel gears 10, 10' on the left and right sides. The bevel gears are contained in the suction chamber 8; the other ends of the hollow output shafts 11, 11' protrude from the suction chamber 8, and there are bearings 12, 12' between the hollow output shafts 11, 11' and the suction chamber 8, and the hollow output The ends of the shafts 11, 11' are equipped with propellers 13, 13' and diffusers 14, 14'; the hollow output shafts 11, 11' extend out of the suction chamber 8 and include propellers 13, 13' and diffusers 14, 14' Set in the guide cover 15, 15', the guide cover 15, 15' is fixed on the end face of the suction chamber 8, and is coaxial with the hollow output shaft 11, 11'; the water suction pipe 16 enters from the side of the suction chamber 8 And be fixed on the suction chamber 8, the water suction pipe 16 enters the suction chamber 8 and is divided into two, and the two pipes that are separated extend into the hollow output shafts 11, 11' respectively.

There are a set of driven bevel gears 10, 10', hollow output shafts 11, 11', bearings 12, 12', propellers 13, 13', diffusers 14, 14' and shrouds on the left and right ends of the suction chamber 8 15, 15', these two sets are arranged symmetrically, and the parameter dimensions are the same.

The profile of the two diffusers 14, 14' is a cone, the diameter of the big head of the cone is equal to the diameter of the hub of the two propellers 13, 13', and the inside of the two diffusers 14, 14' is a tapered hole. The diameter of the small head of the hole is the same as the inner diameter of the two hollow output shafts 11, 11'. There are helical blades on the conical surface of the taper hole, and the helical direction of the helical blades is opposite to that of the two propellers 13, 13'.

The back side of two wind deflectors 15,15' (near the end of suction chamber 8) is partly eight strips, and one end of the eight cuts is the connection base plate of two wind deflectors 15,15', and the other end is There are many small holes on the cylinder, and after assembly, the end faces of the two shrouds 15, 15' are 80-150mm longer than the end faces of the two diffusers 14, 14'.

In order to solve the sealing problem during work, there is an annular O-shaped sealing ring at the connection between the lower end surface of the hollow sleeve 4 and the suction chamber 8; two hollow output shafts 11, 11' pass through the end surface of the suction chamber 8. In addition to the two bearings 12, 12', there are also skeleton sealing rings at the two ends of the bearings.

The working principle of the utility model is as follows:

When the utility model works, the power is input by the motor 1, and the power is transmitted to the hollow shaft 2 through the chain transmission. Helical blade, high-speed rotating type, the helical blade sucks air and presses the gas into the hollow shaft 2. Hollow shaft 2 is covered with hollow sleeve 4 outside, and rolling bearing 7 is arranged between, and the upper end of hollow sleeve 4 is connected with scale beam 5, and the other end of scale beam 5 is connected with float 6, and motor 1 is fixed on scale beam 5. The weight of whole aerator is borne by the buoyancy of float 6 like this.

The lower end surface of the hollow sleeve is connected with the suction chamber 8, the lower end of the hollow shaft 2 is fixed with a driving bevel gear 9, the driving bevel gear 9 meshes with the driven bevel gears 10, 10' on the left and right sides, and the two driving bevel gears 10 , 10' are mounted on the respective two hollow output shafts 11, 11', the two hollow output shafts 11, 11' extend out of the suction chamber 8, and the other ends of the two hollow output shafts 11, 11' are equipped with Propellers 13, 13' and diffusers 14, 14', so that the power of the motor 1 is transmitted to the two propellers 13, 13' and the two diffusers 14, 14'. The profile of the two diffusers 14, 14' is a cone, the diameter of the big head of the cone is equal to the diameter of the hub of the two propellers 13, 13', and the inside of the two diffusers 14, 14' is a tapered hole. The diameter of the small head of the hole is the same as the inner diameter of the two hollow output shafts 11, 11'. There are helical blades on the conical surface of the taper hole, and the helical direction of the helical blades is opposite to that of the two propellers 13, 13'. The water suction pipe 16 enters from the side of the suction chamber 8 and is fixed on the suction chamber 8. After the water suction pipe 16 enters the suction chamber 8, it is divided into two parts, and the two separated pipes extend into the hollow output shafts 11 and 11' respectively. . The two propellers 13 and 13' rotate at high speed to generate negative pressure on the back of the blades. At the same time, the two propellers 13 and 13' push the water forward to generate a certain water flow, and also generate a pressure zone below atmospheric pressure in the wake, plus The air compression effect of the air compressor wheel 3, so through the hollow shaft 2, the suction chamber 8, the hollow output shaft 11, 11 ' gas into the water. At the same time, water is sucked into the gas ring through the water suction pipe 16 to generate a double-layer annular gas-liquid interface, which greatly increases the contact area. The helical directions of the internal helical blades of the two diffusers 14, 14' are opposite to the helical directions of the two propellers 13, 13', which greatly increases the shearing action between water and gas.

The two hollow output shafts 11, 11' extend out of the suction chamber 8, and the part includes two propellers 13, 13' and two diffusers 14, 14', which are sleeved in the two guide covers 15, 15', and the two guides The flow covers 15, 15' are fixed on the end face of the suction chamber 8, and are coaxial with the two hollow output shafts 11, 11'; The part is eight strips, and one end of the eight strips is the connection base plate of two air guide covers 15, 15 ', and the other end is a cylindrical tube, and there are many small holes on the cylindrical tube. After assembly, the two air guide covers 15, 15 ' The end face of 15' is 80-150 mm longer than the end faces of the two diffusers 14 and 14'. When the aerator is working, there is a relatively high-speed rotation between the two air deflectors 15, 15', the two propellers 13, 13' and the two diffusers 14, 14', so that the two air deflectors 15, 14 with small holes 15' further disperses the air bubbles into smaller air bubbles, further increasing the water-air contact area.

The utility model increases the contact area of water-gas by the high-speed rotation of the compressor wheel 3, two propellers 13, 13' and two diffusers 14, 14' to generate self-pressure, air suction and water absorption, and improves the oxygenation efficiency .

The above-mentioned specific embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the protection scope of the claims, any modifications and changes made to the utility model all fall into the scope of the utility model. A new type of protection.

Claims (3)

1. A symmetrically arranged propeller-type self-compressed air, air-absorbing, water-absorbing aerator, characterized in that: the motor (1) transmits power to the hollow shaft (2) through a chain drive; the upper end surface of the hollow shaft (2) and the compressed air The bottom of the wheel (3) is connected, the compressor wheel (3) is a conical body with inner helical blades, the through hole at the bottom of the compressor wheel (3) communicates with the hole of the hollow shaft (2); the outer sleeve of the hollow shaft (2) There is a hollow sleeve (4), the upper end surface of the hollow sleeve (4) is connected with one end of the scale beams on both sides, and the other ends of the two scale beams are respectively fixed with floating balls (6); the motor (1) is fixed on the scale beam; Rolling bearings (7) are installed between both ends of the sleeve (4) and the hollow shaft (3); the lower end surface of the hollow sleeve (4) is connected to the suction chamber (8); the end of the hollow shaft (3) is equipped with The driving bevel gear (9), the driving bevel gear (9) meshes with the driven bevel gears (10, 10') on both sides, and the two driven bevel gears (10, 10') are respectively mounted on the respective hollow output shafts (11 , 11'), the three bevel gears are contained in the suction chamber (8); the other ends of the two hollow output shafts (11, 11') protrude from the suction chamber (8), and the hollow output Bearings (12, 12') are installed between the shafts (11, 11') and the suction chamber (8), and the other ends of the two hollow output shafts (11, 11') are equipped with propellers (13, 13') and diffuser (14, 14'); two hollow output shafts (11, 11') protrude from the suction chamber (8), including propellers (13, 13') and diffusers (14, 14'). In the respective shrouds (15, 15'), two shrouds (15, 15') are fixed on the end face of the suction chamber (8), and are coaxial with the respective hollow output shafts (11, 11') ;The water suction pipe (16) enters from the bottom surface of the suction chamber (8) and is fixed on the suction chamber (8). After entering the suction chamber (8), the water suction pipe (16) is divided into two parts. Respectively stretch into the respective hollow output shafts (11, 11 '). 2. A symmetrically arranged propeller-type self-pressurized air, air suction, and water suction aerator according to claim 1, characterized in that: the shape of the two diffusers (14, 14') is a cone, The diameter of the big head of the cone is equal to the diameter of the hub of the two propellers (13, 13'), and there is a cone hole inside the two diffusers (14, 14'), and the diameter of the small head of the cone hole is the same as the diameter of the respective hollow output shafts (11, 11'). ') have the same inner diameter, and there are helical blades on the conical surface of the cone hole, and the helical direction of the helical blades is opposite to that of the respective propellers (13, 13'). 3. The symmetrically arranged propeller type self-compressed air, suction, and water suction aerator according to claim 1, characterized in that: the two shrouds (15, 15') are close to the suction chamber (8) There are eight strips at one end, and one end of the eight strips is the connecting bottom plate of the two shrouds (15, 15'), and the other end is a cylinder with many small holes on the cylinder. After assembly, the two shrouds The end faces of (15, 15') are 80~150mm longer than the end faces of the two diffusers (14, 14').

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