CN2050677U

CN2050677U - Composed and strengthening style oxygen-increasing machines

Info

Publication number: CN2050677U
Application number: CN89208037U
Authority: CN
Inventors: 舒涵增; 赵澍民
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-05-27
Filing date: 1989-05-27
Publication date: 1990-01-10

Abstract

The utility model discloses an oxygen-increasing device, belonging to an aquaculture machine. The utility model is composed of a motor, a gas pump, a gas-water pump (namely air-liquid two-phase flow pump) and a gas-water ejector. After air is pressurized by the gas pump, on one hand, after the air is sent to the gas-water pump and adequately stirred with a water body, the air is sent to the ejector, on the other hand, the pressurized air is directly sent to the negative-pressure cavity of the ejector via a pipeline, the pressurized air carries out strong energy exchange again with a gas-water mixture, after the pressurized air and the gas-water mixture are atomized, the atomized air and the gas-water mixture are ejected into the water body. The utility model has the advantages of good oxygen-increasing effect and energy source saving.

Description

Composed and strengthening style oxygen-increasing machines

The utility model relates to a kind of oxygen increasing equipment, with regard to its major function, belongs to aquaculture machinery, is made up of air pump, the gentle-water stream injection pump of air-water pump (being the biphase gas and liquid flow pump).Be used for water body oxygenation, use in fields such as microorganism, algae, fish carnivorism, aquaculture and purification of water qualitys.

Because the oxygen consumption of aquatic organism, perhaps because various emission impouring water bodys have caused water hypoxia, the normal growth that has influenced aquatic organism is grown, even threatens the life of aquatic organism; Water hypoxia or oxygen expenditure totally will destroy the ecological balance, make environmental deterioration.

For improving water quality condition, various oxygenation aerators have once appearred.Wherein, what have drives water pump with engine, directly water is sprayed to atmosphere with the pressure of pump, the water backwater surface that falls again under action of gravity then, in this course, the Free Surface that sprays water droplet contacts with atmosphere, increased the dissolved oxygen of water droplet, as diving injecting type aerator; What have stirs water body with runner or waterwheel (often slowing down by decelerator), makes into the spray, enlarges the contact area of water body and atmosphere, and causes local decompression to draw by rotary part and inhale little air to increase dissolved oxygen in water, as vane type or waterwheel aerator; What have is power with the press water, brings air into by jet and makes water body oxygenation, as the jetting type aerating vessel; What have directly injects air water body oxygenation with fan blower or bubble generator, or the like.The power conversion of these oxygen-increasing devices is all not ideal enough, and its investment and standing charges quite big, economy is relatively poor.

In the past, someone once tried hard to change the suction part that diving sprays aerator and pump formula aerator, in the hope of causing big negative pressure to suck more air, also the someone studies the jet pump that can suck more air, but, can not cause big pressure reduction, thereby its effect is not remarkable all because of the no pressure head of air of nature itself, the inventor attempts to stir and be detained the bubble of the different size that is admitted to water body again, also because of mechanically difficulty with energy consumption is excessive fizzles out.These all point out people not go to overcome the shortcoming that energy conversion rate is low and oxygenation effect is not good enough in the prior art in directly perceived, simple mode.Afterwards, the inventor has studied the associating superposition of air pump, Gas-liquid pump and jet pump emphatically, and solved the technology that the Gas-liquid pump pumping chamber does not have impact (few loss) input jet pump, obtain to force air to enter the efficient and inexpensive method of liquid pump and jet pump again, and then developed this device.

The purpose of this utility model is to seek a kind ofly to obtain bigger oxygenation amount with less expense, promptly improves the new equipment of water body state economically, and with the heat that energy conversion loss generated of equipment itself, reclaims to greatest extent to be used for heating of breeding water body.

The utility model, with the motor driven air pump gentle-pump working, working media is water, gas and air-water mixture, working media obtains to promote jet pump work again behind the energy.The effect of air pump is: 1, the air of certain pressure and flow is provided, and injects water pump by gas circuit, 2, with the air of certain pressure and flow by tracheae injecting jet pump (note that all it is " injection ", is not " suction "); 3, blast and the air quantity that provides cooling motor to use will be given water body from the heat that cooling motor absorbed simultaneously and support to grow and heat.Above-mentioned three effects are all very important, but the 3rd effect consumed energy not only can obtain energy on the contrary.The effect of air-water pump is: 1, make fining air bubbles and mix with water; 2, make the air-water mixture raising speed, boost; 3, provide injection power to jet pump; 4, to each jet pump reasonable distribution flow and pressure.The effect of jet pump is: make further acceleration and miscible of air-water mixture; 2, increase pressure reduction, the positive pressure gas fluid capacitance that air pump is provided easily injects, and increases air inflow; 3, gas-liquid two-phase carries out energy exchange, increases dissolved oxygen amount.

In the air by air pump output, oxygen accounts for 21%, water soluble, the nitrogen water surface of then overflowing.The best of pressure that air pump provides and flow and air-water pump and jet pump is taken tolerance and is complementary, and can obtain optimum dynamic efficiency like this.

Air pump of the present invention, air-water pump are coaxial with electromotor, are the vertical body structure that connects, and air pump is output on electromotor, and the air-water pump is at the following output of electromotor.The electromotor of conventional design, generally need the cooling of ventilating, the present invention is then with air pump impeller double as cooling fan, the motor radiating sheet is then held a concurrent post by the air pump stator that mainly plays water conservancy diversion and switching to pressure effect, simultaneously, the heat energy overwhelming majority that this dynamo-electric motivation loss and other loss are converted to is sent into water body by air pump, so that water body heats up, this is of great value to most breeding water bodies, at least can save the boiler dedicated fire coal of the water body of heating, for example: be used for the factorial seedling growth pond, close shrimp, parent population, close shellfish etc. survive the winter and situation such as Tilapia mossambica breed.

The air of air pump impeller output is after the air pump stator boosts; air scoop along the electromotor bottom imports the air-water pump inlet; air scoop is fixed on the electromotor bottom end cover; in stopped status; stop because of spray due to the stormy waves with it and to be splashed into motor cavity; for strengthening this stopping, respectively overlap a retaining ring at the upper and lower sides of the little radial clearance of air scoop and between centers.

To the air-water pump inlet, water is then imported by water guide cone and the stator that the motor cabinet bottom constitutes air pump with pneumatic transmission.Morely to the blade of import extension and formation cutting bubble, can open with former blade fragment by this blade than the one phase flow water pump for the blade of air-water impeller of pump, and at a distance of 2～6 millimeters, the number of blade also than the many 1～N sheets of one phase flow water pump, can make bubble be tending towards littleization like this.In this machine duty, when water enters impeller under self static pressure and atmospheric pressure effect, air pump is calmed the anger to the air-water pump inlet, G﹠W is accepted the active force of impeller blade together, at this moment two-phase fluid motion is very complicated, water has been eliminated substantially behind the water inlet stator and has been prewhirled, but produced little prewhirling again at nearly blade place, entering of malleation vapor phase stream can be passed to the water certain energy, like this, the pressure at impeller inlet place can not reduced at that time saturated vapour pressure, and (this is from general, the local depression district is still inevitable), thereby can not cavitate here, also be unlikely to take place vapour lock, even in that the air pump flow is excessive when causing mismatch, instantaneous cutout (be actually cut off the water supply and do not die) does not influence the operate as normal of this machine.The air-water mixture of acquisition speed energy enters pumping chamber, here only require partial velocity can be converted to the pressure energy, this is different from the liquid phase water pump, the pumping chamber reserve part speed energy of air-water pump, and the air-water mixture reasonable distribution that will have certain speed energy and pressure energy is given each jet pump, pumping chamber can be made up of 1～M volute chamber, its outlet also is 1～M accordingly, the volute chamber number of pumping chamber is by used jet pump number decision, for improving effective power, reduce shunting loss and balance radial load and axial force, each outlet of pumping chamber is symmetric arrangement, jet pump can need be made symmetry to any direction by actual use and spray, also can be on demand to carrying dissolved oxygen water symmetrically or each dead angle of Chi Shui is raised the waves nearby or at a distance.

Advantage of the present invention:

1, effectively utilized the energy, the heat that various losses become also is recovered and has utilized.

2, simple in structure, given full play to the complex function of each parts, have the motor cooling concurrently and reclaim the function of heat as air pump.

3, realized big oxygenation amount economically.

4, maneuverability, easy to use, be easy to realize automatic control.

Description of drawings is as follows:

Fig. 1 is a structure chart of the present utility model;

Fig. 2 is pumping chamber and jet pump layout drawing.

The explanation of specific embodiment (consulting accompanying drawing):

Electromotor 1 top output drives air pump impeller 2, and the bottom output drives air-water impeller of pump 3, and air pump impeller 2 enters air pump stator 4 with air.Air pump impeller 2 double as electromotor cooling fan, air pump stator 4 double as heat radiator fins of motor.Through air pump stator 4 supercharging water conservancy diversion and carrying the air that reclaimed electromotor 1 heat and guide the import A that delivers to the air-water pump and the negative pressure cavity B of jet pump 7 respectively by air scoop 5 and tracheae 6.Motor cabinet 8 bottoms also can be given birth on pumping chamber 10 for water inlet stator 9(), gas, water mixes and enter pumping chamber 10 after impeller obtains energy, after pressurizeing, air-water mixture is assigned to each jet pump 7 here, the air that is injected into negative pressure cavity B through tracheae 6 has carried out strong energy exchange at the trunnion 11 of jet pump 7 with the high speed air-water mixture that is sprayed by nozzle 12, spray into water body after the atomizing, reach the oxygenation purpose, 15 is axle among the figure, 16 is retaining ring, 14 is the air guide shell of electromotor 1 outside, double as air pump body, for ease of maintenance, the air pump body also can be made two parts with shell 14.

Complete machine is located in operation on the buoyancy aid of being made by foamed plastic, thin-walled hollow material or inflating thin film 13, can draw or grappling, also can be made into the ship machine.

When long-range injection of needs or large tracts of land oxygenation, can increase place capacity unfetteredly, also can increase air pump gentle-progression of water pump, the corresponding increase of motor power (output) certainly.Can add solid formation (as fertilizer, medicine, bait etc.) by the lower end of tracheae 6 in case of necessity, throw in the pond by spraying.It is more suitable that jet pump 7 is removed in some use occasion, for example is unable to undergo the occasion of nozzle and trunnion high velocity jet seedling or valuable aquatic organism, can certainly manufacture two independent products and wait to select for use.Stop up whole gas circuits and the tail end air flue of air pump stator 4 is connected atmosphere, stir water body, at this moment,, can be delivered to it to water again and locate to use if remove jet pump again in order to water spray.When water body has foreign material, should establish filter screen, establish filter screen and can prevent again in the big aquatic organism suction pump.

Claims

1, a kind of complex intensifying aerator, be made up of electromotor 1 and pump, it is characterized in that at an output of electromotor 1 air pump being arranged, another output of electromotor 1 has the air-water pump, air pump is gentle-and the impeller inlet of water pump has air guide shell 14 in the outside of electromotor 1 in the same way.

2, aerator according to claim 1 is characterized in that the cooling fan of air pump impeller 2 double as electromotor 1, the cold sink of air pump stator 4 double as motors 1.

3, aerator according to claim 1, the blade that it is characterized in that air-water impeller of pump 3 extends to import A, and forms the blade of cutting bubble, and this blade can be opened with former blade fragment, and at a distance of 2～6 millimeters, lobe numbers is than the many 1～N sheets of water pump blade number of conventional design.

4, aerator according to claim 1 is characterized in that the barotropic gas of air pump output is delivered to air-water impeller of pump import A by air scoop 5, at the matching part of air scoop 5 and axle 15 retaining ring 16 that is enclosed within on the axle 15 is arranged.

5, aerator according to claim 1 is characterized in that being connected with jet pump 7 in the exit of air-water water-pumping chamber 10.

6, aerator according to claim 5 is characterized in that the pumping chamber 10 of air-water pump can be made up of 1～M volute chamber, and the outlet of pumping chamber 10 also is 1～M accordingly, and the volute chamber number is by the decision of jet pump number, and all outlet ports should symmetry be arranged.

7, aerator according to claim 5 is characterized in that the barotropic gas that air pump is exported.

A, deliver to air-water impeller of pump import A by air scoop 5,

B, inject the negative pressure cavity B of each jet pump 7 by tracheae 6.

8,, it is characterized in that the cooling fan of air pump impeller 2 double as motors 1, the cold sink of air pump stator 4 double as motors 1 according to claim 5,6,7 described aerators.

9, according to claim 5,6,7 described aerators, the blade that it is characterized in that air-water impeller of pump 3 extends to import A, and forms the blade of cutting bubble, and this blade can be opened with former blade fragment, and at a distance of 2～6 millimeters, lobe numbers is than the many 1～N sheets of water pump blade number of conventional design.

10,, it is characterized in that the retaining ring 16 that is enclosed within on the axle 15 being arranged at the matching part of air scoop 5 and axle 15 according to claim 5,6,7 described aerators.