Submersible type impeller aeration pump
The utility model belongs to the pump class, is specifically related to a kind of submersible type impeller aeration pump.
Present all kinds of aquifer cultivation is extensive use of oxygen increasing equipment, as Waterwheel-type, impeller type, jet-type aeration pump, by the stirring to water surface, increases the area of contact and the time of water and air, reaches the purpose of water body oxygenation.Now the general volume of this class device that uses is bigger, the energy consumption height, and efficient is low, and water body oxygenation scope is little, purification of water quality and oxygenation effect is not good enough under water.
The utility model provides a kind of volume little at above deficiency, and the water body flow range is big, the submersible type impeller aeration pump that oxygenation effect is good.
Technical solution of the present utility model is: this aeration pump is made up of submersible motor and axial-flow pump, the pump shaft of axial-flow pump is a hollow shaft, hollow shaft is bearing in pump housing center by a bearing pair, hollow shaft one end is connected with the submersible motor axle by universal shaft coupling, the other end is uncovered, near open-mouth rotary blade is housed; The hollow shaft that is positioned at the bearing pair inboard is provided with inlet hole, and pump case is provided with the air-breathing mouth of pipe, on the air-breathing mouth of pipe sucking pipe is housed, and sucking pipe is through pump housing inner chamber, hollow shaft inlet hole and the hollow shaft outer end is uncovered connects.
During work, sucking pipe stretches out the water surface, and impeller is high speed rotating under water, makes the impeller front end area form high vacuum vortex district, and extraneous fresh air communicates with the swirl vacuum district by sucking pipe-pump housing inner chamber-hollow pump shaft and forms negative pressure.Condition of high vacuum degree helps sucking a large amount of fresh airs, the high speed vortex helps water and air is miscible, the impeller propelled water body is in local flow at high speed, miscible time of water and air and distance have been increased again, flowing on a large scale of water, the waste gas that water-bed biogas, Institute of Micro-biology are produced overflows on the one hand, reaches the purpose that purifies water, increased water on the other hand and contacted, more strengthened oxygenation effect with the surface of atmosphere.Having under the photosynthetic situation, because flowing of water body greatly increased the dissolved oxygen of middle lower floor water body.And the directional flow of water body, helping the water body exchange, zones of different forms the life habit that different water velocity (0.1-1 meter per second) is more suitable for fish.
Further describe the utility model below in conjunction with accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model scheme of installation.
Wherein: 1, screw rod 2, nut 3, universal shaft coupling 4, the air-breathing mouth of pipe 5, pump shaft 6, pump case 7, seal arrangement 8, ebonite cover 9, ceramic bearing 10, nylon jacket 11, rotary blade 12, submersible motor 13, submersible motor axle 14, inlet hole 15, axial-flow pump 16, buoyancy frame 17, sucking pipe
As shown in Figure 1, submersible type impeller aeration pump is made up of submersible motor 12 and axial-flow pump 15 two-part, the pump shaft 5 of axial-flow pump is a hollow shaft, be bearing in pump housing center by a bearing pair, this bearing pair is made up of ebonite cover 8 and ceramic bearing 9, ebonite cover 8 is bonded on the hollow shaft, and ceramic bearing 9 is bonded on the nylon jacket 10 of fixedlying connected with pump case 6.Bearing pair inboard at the supporting axial-flow pump is provided with seal arrangement 7, so that pump housing bore seal, current can not enter cavity.Pump case is connected with submersible motor 12 with nut 2 by screw rod 1.
One end of hollow shaft is connected with submersible motor axle 13 by universal shaft coupling 3; The other end of hollow shaft is uncovered, near open-mouth rotary blade 11 is housed.The pump case that is positioned at the bearing inboard is provided with the air-breathing mouth of pipe 4, and sucking pipe 17 is housed on the air-breathing mouth of pipe, and the hollow pump shaft that is positioned at the bearing inboard is provided with inlet hole 14, and inlet hole communicates with pump housing inner chamber.
As shown in Figure 2, sucking pipe 17 stretches out the water surface and communicates with atmosphere during installation.The pump housing is hung under water by buoyancy frame 16, becomes 10~12 ° of installations with the water surface.By submersible motor impeller high speed rotating, under the Driving force and centrifugal force double action of impeller, water is dished out at a high speed, because local velocity is high, form vortex, particularly form very high degree of vacuum at hollow pump shaft front end, miscible air suction vacuum place and water.
In sum, the utlity model has following characteristics:
1, this oxygen increasing pump has the function of stirring water, quick-fried gas, water body exchange simultaneously, increase direct dissolved oxygen, Increase water body and atmosphere Surface Contact dissolved oxygen and take full advantage of three aspects of photosynthesis dissolved oxygen, the mechanism of action Uniqueness, effect is remarkable.
2, the local flow at high speed of vortex place water is conducive to the effusion of pernicious gas.
3, the directed flow of water body is conducive to the exchange of water body, makes dissolved oxygen, temperature in the whole water body Deng physical and chemical factor, tend to balance at vertical and horizontal both direction. This advantage has for the general action radius The other types aerator of limit can't be obtained.
4, because sucking pipe can lead directly to outdoorly, be particularly conducive to the oxygenation in booth fishpond in winter, impeller type, Waterwheel-type, water jet equipment then can't be realized.