CN2565815Y

CN2565815Y - Pond water circulation aerator

Info

Publication number: CN2565815Y
Application number: CN02277075U
Authority: CN
Inventors: 严奉前
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-15
Filing date: 2002-08-15
Publication date: 2003-08-13
Anticipated expiration: 2012-08-15

Abstract

The utility model relates to a pond water circulation aerator, which is fixed to a supporting structure. The utility model is characterized in that a water outlet pipe of the pond water circulation aerator is axially and horizontally immersed in an axial flow submersible pump which is positioned at the proper depth of pond water, the section that the axial flow submersible pump is near to a guide blade of a water outlet pipe of an impeller is provided with an air filling hole which is communicated with an air suction pipe, and the air suction pipe is higher than water surface. Besides, an included angle formed by the axial line of the water outlet pipe opening of the submersible pump and the water surface is positioned between a plus 5 DEG and a minus 5 DEG. The supporting structure comprises a horizontal lifting beam which is fixedly connected with the submersible pump wall, floating drums which are arranged on both sides of the horizontal lifting beam, and a lifting frame which is vertically fixed to the pond bottom. Both end heads of the horizontal lifting beam are fixedly provided with vertical sliding casing tubes, the sliding casing tube is movably sheathed on two standpipes of the lifting frame, and the standpipes are arranged in parallel. The utility model can conduct gas-liquid mass transfer in closed environment, the aeration effect can be transmitted to extensive pond surface, and the utility model has better oxygenation effect.

Description

Pond water circulation oxygenating machine

Technical field: the utility model relates to water body aeration oxygen replenishing device field, relates in particular to the improvement of pond waters mechanical type aeration oxygen replenishing device.

Background technology: existing biochemical treatment tank is piscina especially, for keeping biochemical oxygen demand (BOD), adopts oxygenation in blast aeration method and the mechanical aeration normal direction pond more.The blast aeration method needs to lay complicated pipeline system in the pond, also need acquire equipment such as gas blower, and structure and construction investment are too big, has far exceeded the ability to shoulder economically of existing rural area aqiuculrue specialist; Mechanical aeration equipment is comparatively simple, investment is less, in present rural area aqiuculrue specialist, adopt more, but the existing mechanical aeration all adopts Z-axis streaming aeration impeller, the negative pressure of promptly utilizing vertical axial-flow type aeration impeller rotation of inserting appropriate depth in the water of pond to be produced, to rise to the negative pressuren zone of aeration impeller than the Chi Shui of depths, and mix with the air that inhales from top liquid level update area, get rid of again to entering the pond in the air behind the gas-liquid mass transfer; Because the mass transfer of gas-liquid is to carry out under the basic environment that opens wide, the dividing potential drop of oxygen in water droplet is difficult to improve, and sphere of action only limits to the shallow table water surface, therefore overall oxygenation effect is not satisfactory, so that the easy apocleisis of fish tail of putting in a suitable place to breed in the pond, sick, it is too slow to increase weight, and has influence on the raising of culturing economic benefit.

Summary of the invention: at the above-mentioned shortcoming of prior art, technical problem to be solved in the utility model is will provide a kind of can carry out gas-liquid mass transfer in enclosed environment, and the aeration interaction energy passes to pond face on a large scale, has the pond water circulation oxygenating machine of better oxygenation effect.

For this reason, technical solution of the present utility model is a kind of pond water circulation oxygenating machine, be to be fixed on the supporting structure, it is characterized in that: described pond water circulation oxygenating machine is the water pump that its rising pipe axially flatly immerses the pool water within appropriate depth, offers the injecting hole that is connected with the air suction pipe that is higher than the water surface at this water pump near on the water outlet pipeline section of impeller.

Described water pump is the axial-flow type submersible pump; The effluent pipe mouth axis of described submersible pump and the angle of pond horizontal plane are in ± 5 °; The place is provided with the trunnion section at rising pipe next-door neighbour impeller, the circumferential uniform injecting hole that offers at this trunnion section place, and this circle injecting hole is connected with an air suction pipe that is higher than the water surface by the gas injection circuit.

Described trunnion section is the stator district of supporting impeller bearing, and described gas injection circuit is around on the tube wall that is arranged on the stator section.

Described supporting structure comprises: with the horizontal lifting beam of the fastening banded of submersible pump wall, be attached at the floating drum on horizontal lifting beam both sides and be vertically fixed on lifting support in the base plinth of pond; And the two ends place of horizontal lifting beam is fixed with vertical sliding sleeve, and this vertical sliding sleeve is to be enclosed within on the vertical tube of two opposing parallel of described lifting support with being slidingly matched.

Injecting hole of the present utility model is opened in submersible pump impeller rising pipe trunnion section after a while, this section flow velocity is very high, The turbulent river crashes its way through, produce the intensive negative pressure, fresh air is sucked in the sealing pipeline section of trunnion section fast through air suction pipe, carry out sufficient gas-liquid mass transfer with the water droplet of trunnion section camber dispersive, improved the oxygen partial pressure in the water droplet significantly; The inlet/outlet pipe mouth that level is put can impel pool water area about 10 mu to do the annularly flow of about 0.08 meter per second, makes the oxygenation interval expand the pond to extremely on a large scale, and oxygenation effect is obviously greater than conventional oxygenating machine; Find in practice that in addition because pool water generates big area circulation, fish produces motility against the current; Under the above-mentioned various positive factor acting in conjunction, the food ration of fish has been increased more than 1～3 times, the speed of growth has increased more than 1.5 times, has increased disease resistance simultaneously; Supporting structure adopts the Float cylinder type structure of independently lifting, has alleviated management and labour intensity greatly;

The utility model adopts the axial-flow type submersible pump of typing to transform a little and forms, and is simple in structure, implements easily, and effect is obvious, has vast market prospect.

Description of drawings: now in conjunction with the accompanying drawings the utility model is explained.

Fig. 1 is the one-piece construction synoptic diagram of the utility model embodiment.

The structural representation of the pond water circulation oxygenating machine that Fig. 2 converts for the axial-flow type submersible pump.

Embodiment: as shown in Figure 1: the utility model pond water circulation oxygenating machine, be the axial-flow type submersible pump 1 that is fixed on the supporting structure, described supporting structure comprises: with the horizontal lifting beam 2 of the fastening banded of submersible pump 1 outer wall, be attached at the floating drum 3 on horizontal lifting beam 2 both sides and be vertically fixed on lifting support 4 in the base plinth of pond; And the two ends place of horizontal lifting beam 2 is fixed with vertical sliding sleeve 2-0, and this vertical sliding sleeve 2-0 is enclosed within on the vertical tube of two opposing parallel of described lifting support 4 with being slidingly matched; Also be covered with in described axial-flow type submersible pump 1 water inlet filtered water inlet trash rack cover 5.

Described axial-flow type submersible pump 1, its integral body and water inlet pipe 1-1, rising pipe 1-0 axially flatly immerse the pool water within appropriate depth, and the angle of the axial and pond horizontal plane of water inlet pipe 1-1, rising pipe 1-0 is in ± 5 °; On the water outlet pipeline section 1-0 of this axial-flow type submersible pump 1 next-door neighbour's impeller, offer the injecting hole (see figure 2) that is connected with the air suction pipe 6 that is higher than the water surface.

As shown in Figure 2: the rising pipe 1-0 front end of axial-flow type submersible pump 1 connects with the stator district 1-3 of the bearing of the described impeller 1-2 of supporting, and this stator district 1-3 promptly constitutes the trunnion section of rising pipe 1-0, the circumferential uniform injecting hole 6-0 that offers at this trunnion section place, this circle injecting hole 6-0 is by being connected with an air suction pipe 6 that is higher than the water surface around the gas injection circuit 6-1 that is arranged on the stator district 1-3 section tube wall.

Open submersible pump 1, impeller 1-2 high speed rotating, thereafter stator district 1-3 section open area shrinks, flow velocity is very high, The turbulent river crashes its way through, produce the intensive negative pressure, in the sealing pipeline section of fresh air after air suction pipe 6, gas injection circuit 6-1, injecting hole 6-0 suck stator district 1-3 fast, with high dispersing wherein water droplet carry out sufficient gas-liquid mass transfer, improved the oxygen partial pressure in the water droplet; Simultaneously, the water inlet pipe 1-1 that level is put, rising pipe 1-0 can impel pool water to do the big area annularly flow, and it is interval to the pond extremely on a large scale to enlarge oxygenation, and oxygenation effect is obviously greater than conventional oxygenating machine.

Claims

1, a kind of pond water circulation oxygenating machine, be to be fixed on the supporting structure, it is characterized in that: described pond water circulation oxygenating machine is the water pump that its rising pipe axially flatly immerses the pool water within appropriate depth, offers the injecting hole that is connected with the air suction pipe that is higher than the water surface at this water pump near on the water outlet pipeline section of impeller.

2, pond as claimed in claim 1 water circulation oxygenating machine, it is characterized in that: described water pump is the axial-flow type submersible pump, the effluent pipe mouth axis of this submersible pump and the angle of pond horizontal plane are in ± 5 °; The place is provided with the trunnion section at rising pipe next-door neighbour impeller, the circumferential uniform injecting hole that offers at this trunnion section place, and this circle injecting hole is connected with an air suction pipe that is higher than the water surface by the gas injection circuit.

3, pond as claimed in claim 2 water circulation oxygenating machine is characterized in that: described trunnion section is the stator district of supporting impeller bearing, and described gas injection circuit is around on the tube wall that is arranged on the stator section.

4, as the pond water circulation oxygenating machine of claim 2 or 3, it is characterized in that: described supporting structure comprises: with the horizontal lifting beam of the fastening banded of submersible pump wall, be attached at the floating drum on horizontal lifting beam both sides and be vertically fixed on lifting support in the base plinth of pond; And the two ends place of horizontal lifting beam is fixed with vertical sliding sleeve, and this vertical sliding sleeve is to be enclosed within on the vertical tube of two opposing parallel of described lifting support with being slidingly matched.