CN2513356Y

CN2513356Y - Negative pressure aerator

Info

Publication number: CN2513356Y
Application number: CN01273644U
Authority: CN
Inventors: 王国勋; 石志斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-03
Filing date: 2001-12-03
Publication date: 2002-10-02
Anticipated expiration: 2011-12-03

Abstract

The utility model discloses a sub pressure oxygen-supplying machine, consisting of a water pump, an ejector and pipelines. Wherein the water outlet pipe of the ejector consists of a plurality of branch pipes; the water outlet of each water outlet branch pipe is provided with a reflowing hole; an air inlet is arranged at the connecting place of the water outlet branch pipe and a flow dividing chamber; a water and gas circulating pipe is arranged between the reflowing hole and the air inlet. Adopting the structure, the utility model can realize secondary oxygen-supplying and pressure increasing and can greatly improve the pressure and the ejection of the water. The utility model also can realize more than secondary reflowing oxygen absorption of partial water rich in oxygen and improve the oxygen-supplying rate of the oxygen-supplying machine. The utility model is extremely convenient to be used and does not need to be maintained.

Description

A kind of negative pressure automatic aerator

The utility model relates to a kind of oxygen increasing equipment of fishery machinery.It is specially adapted to fresh fish transport vehicle and fish pond oxygenation

Be the oxygenation problem in the transportation that solves fish pond and fresh fish better, in recent years, the machinery that many kinds are given fish pond oxygenation also occurred.As application in: on October 26th, 1987, application number is that 87214816 Chinese utility application discloses a kind of Jet-flow oxygen increasing machine.It is made up of water pump, ejector and some pipelines, water pump can be laid on the ground, put ejector under water, one breather pipe is arranged on the ejector, air from breather pipe be inhaled into mix with jet after, shape with taper flow ejects with certain pressure and speed in the underwater, and it is also soluble in water gradually that airborne oxygen can be contacted with Chi Shui fully, reaches the purpose of oxygenation.Also had apply on 06 12nd, 1997, application number is that 97225343.2 Chinese utility application also discloses a kind of jetted self-priming formula aerator, it is made up of jet getter device, submersible pump and support three parts, and wherein the jet getter device is made up of pipe, conical nozzle, gas-vapor mix chamber, air inlet pipe, spherical air chamber and conical converging again.Characteristics simple in structure, that oxygenation speed is very fast, cost is low, easy to use that these devices have.Because above-mentioned machinery is the outlet pipe single tube, only finishes one time oxygenation from inlet water to outlet water in water, the water outlet oxygen content is lower.Also have, conical nozzle has only been realized a supercharging and has improved jet velocity that the effect of negative pressure oxygen uptake is lower.The outlet pipe single tube is when realizing the comprehensive oxygenation in fish pond, and swap time is long, and efficient is low.

The purpose of this utility model is to be to provide the negative pressure automatic aerator that a kind of oxygenation efficient is higher, install and use more convenient, energy savings, need not repair.

For achieving the above object, a kind of negative pressure automatic aerator of the present utility model, it is made up of water pump, ejector and some pipelines, and wherein ejector is made up of outlet pipe, conical nozzle, air inlet pipe and water inlet pipe.The outlet pipe of ejector is made up of some arms, and all exit branch internal diameter sectional area sums are less than the sectional area of water inlet pipe internal diameter; Delivery port one end of exit branch has a flange platform, the middle discharge orifice once of flange platform, and the junction of exit branch and diffluence room has a flange platform in addition, and an air admission hole is arranged in the middle of the flange platform; The flange that connects a band bend pipe on the flange platform of return port, the flange that connects the threeway of a band on the flange platform of air admission hole, between the flange of the flange of band bend pipe and band threeway an aqueous vapor circulation pipe is arranged, three mouths of threeway link to each other with air admission hole, aqueous vapor circulation pipe, air intake branch respectively.

As a kind of improvement of the present utility model, the air intake branch in the negative pressure automatic aerator communicates with air inlet pipe by sub-air chamber.

As a kind of improvement of the present utility model, the exit branch in the negative pressure automatic aerator links to each other with water inlet pipe by diffluence room.Exit branch is a straight tube, can also arrange at an angle between the many exit branch.

As further improvement of the utility model: the exit branch of the ejector in the negative pressure automatic aerator, diffluence room, admitting pipe joint can be cast an integral body.

After adopting this structure, do not increasing under the constant situation of pump power, water inlet pipe flow velocity, water inlet by from the diffluence room to the exit branch and conical nozzle, can realize the secondary booster speedup through ejector, can improve the pressure and the jet of water outlet greatly.In exit branch, adopt the aqueous vapor circulation pipe, can realize the above backflow oxygen uptake of secondary of part heavy-oxygen-enriched water, made the oxygenation benefit of automatic aerator higher, can improve oxygen content 15%.Adopt many exit branch to arrange at an angle, enlarged the oxygenation scope, fully increased oxygenation area and effect, realize rapid oxygenation the fish pond to the fish pond.Because exit branch, diffluence room, the admitting pipe joint of ejector are cast an integral body, and be extremely easy to use, need not maintenance and repair.

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

Fig. 1 is the front view of a kind of negative pressure automatic aerator of the utility model ejector;

Fig. 2 is the left view of a kind of negative pressure automatic aerator of the utility model ejector;

Fig. 3 is the right view of a kind of negative pressure automatic aerator of the utility model ejector;

Fig. 4 is the generalized section of Fig. 1 along the A-A direction;

Fig. 5 is the generalized section of Fig. 1 along the C-C direction;

Fig. 6 is the generalized section of Fig. 4 along the B-B direction;

Fig. 7 is the generalized section of Fig. 4 along the E-E direction.

Fig. 1, Fig. 2, Fig. 3 are front view, left view, the right views of a kind of negative pressure automatic aerator of the utility model ejector.Ejector shell 1 by

screw

61,62,63,64,65,66 be installed on the

exit branch

41,43, shell 1 has four installing

rings

51,52,53,54, admitting pipe joint 3,

exit branch

41,42,43 and air inlet pipe 2 are stretched in ejector shell 1 outside.

Fig. 4 is the generalized section of Fig. 1 along the A-A direction.Air inlet pipe 2 communicates with

air intake branch

81,82,83 by sub-air chamber 7.Air is entered in the

exit branch

41,42,43 by threeway flange 101,102,103 by

air intake branch

81,82,83, finishes in 41,42,43 and the mixing of water at pipe.Be connected with aqueous

vapor circulation pipe

91,92,93 in the middle of bend pipe flange 111,112,113 and the threeway flange 101,102,103, enter

exit branch

41,42,43 oxygen uptakes once again once again from threeway flange 101,102,103 after the part oxygenated water refluxes by aqueous

vapor circulation pipe

91,92,93 in the pipe and mix.

Exit branch

41,42,43 is installed in the diffluence room 14.

Fig. 5 is the generalized section of Fig. 1 along the C-C

direction.Exit branch

41,43 outsides have six fixed legs 151,152,153,154,155,156 respectively, and shell 1 is installed on the fixed leg 151,152,153,154,155,156 by

screw

61,62,63,64,65,66.Delivery port one end of

exit branch

41,42,43 has bend pipe flange 111,112,113, the junction of

exit branch

41,42,43 and diffluence room 14 has a threeway flange 101,102,103 in addition, between the flange 101,102,103 of bend pipe flange 111,112,113 and threeway an aqueous

vapor circulation pipe

91,92,93 is arranged.

Fig. 6 is the generalized section of Fig. 4 along the B-B direction.The

exit branch

41,42,43 of ejector, diffluence room 14, admitting pipe joint 3 and fixed leg 151,152,153,154,155,156 can be cast an integral body in the negative pressure automatic aerator.There is a conical nozzle 17 junction of

exit branch

41,42,43 and diffluence room 14.All

exit branch

41,42,43 internal diameter sectional area sums are less than the sectional area of admitting pipe joint 3 internal

diameters.Exit branch

41,42,43 links to each other with admitting pipe joint 3 by diffluence room 14, and

exit branch

41,42,43 is a straight tube, can also arrange at an angle between the

many exit branch

41,42,43.

Fig. 7 is the generalized section of Fig. 4 along the E-E direction.Delivery port one end of

exit branch

41,42,43 has a flange platform 121,122,123, flange platform 121,122,123 middle discharge orifices 181,182,183 once, the junction of

exit branch

41,42,43 and diffluence room 14 has a flange platform 131,132,133 in addition, and an air admission hole 191,192,193 is arranged in the middle of the flange platform 131,132,133; The flange 111,112,113 that connects a band bend pipe on the flange platform 121,122,123 of return port 181,182,183, the flange 101,102,103 that connects the threeway of a band on the flange platform 131,132,133 of air admission hole 191,192,193, between the flange 101,102,103 of the flange 111,112,113 of band bend pipe and band threeway an aqueous

vapor circulation pipe

91,92,93 is arranged, three mouths of threeway 101,102,103 respectively with air admission hole 191,192,193, aqueous

vapor circulation pipe

91,92,93,

air intake branch

81,82,83 links to each other.

Air intake branch

81,82,83 communicates with air inlet pipe 2 by sub-air chamber 7.

Claims

1, a kind of negative pressure automatic aerator, it is made up of water pump, ejector and some pipelines, wherein ejector is made up of outlet pipe, conical nozzle, air inlet pipe and admitting pipe joint, it is characterized in that: the outlet pipe of described ejector is made up of some arms (41,42,43), and all exit branch (41,42,43) internal diameter sectional area sum is less than the sectional area of admitting pipe joint (3) internal diameter; Delivery port one end of exit branch (41,42,43) has a flange platform (121,122,123), the middle discharge orifice (181,182,183) once of flange platform (121,122,123), exit branch (41,42,43) has a flange platform (131,132,133) in addition with the junction of diffluence room (14), and an air admission hole (191,192,193) is arranged in the middle of the flange platform (131,132,133); Return port (181,182,183) flange platform (121,122,123) go up the flange (111 that connects a band bend pipe, 112,113), air admission hole (191,192,193) flange platform (131,132, the flange (101 that connects the threeway of a band on 133,102,103), the flange (111 of band bend pipe, 112,113) with the flange (101 of being with threeway, 102, one aqueous vapor circulation pipe (91 is arranged 103), 92,93), threeway (101,102,103) three mouths respectively with air admission hole (191,192,193), aqueous vapor circulation pipe (91,92,93), air intake branch (81,82,83) link to each other.

2, a kind of negative pressure automatic aerator according to claim 1 is characterized in that: the air intake branch in the described negative pressure automatic aerator (81,82,83) communicates with air inlet pipe (2) by sub-air chamber (7).

3, a kind of negative pressure automatic aerator according to claim 1 and 2 is characterized in that: the exit branch in the described negative pressure automatic aerator (41,42,43) links to each other with admitting pipe joint (3) by diffluence room (14); Exit branch (41,42,43) is a straight tube, can also arrange at an angle between the many exit branch (41,42,43).

4, according to claim 1,2 or 3 described a kind of negative pressure automatic aerators, it is characterized in that: the exit branch of ejector (41,42,43), diffluence room (14), admitting pipe joint (3) can be cast an integral body in the described negative pressure automatic aerator.