CN2565815Y - Pond water circulation aerator - Google Patents

Abstract

A pool water circulation aerator, which is fixed on a support structure, is characterized in that: the pool water circulation aerator is an axial-flow submersible pump whose outlet pipe is axially and horizontally immersed in an appropriate depth of pool water. The guide vane section of the outlet pipe near the impeller is provided with an air injection hole connected to the air suction pipe above the water surface; the angle between the axis of the outlet pipe of the submersible pump and the water level of the pool is within ±5°, and the supporting structure includes : The horizontal lifting beam fastened to the wall of the submersible pump, the buoys connected to both sides of the horizontal lifting beam, and the lifting frame vertically fixed in the foundation of the pool bottom; and the two ends of the horizontal lifting beam are fixed with vertical sliding sleeves , the vertical sliding sleeve is slidably fitted on the two relatively parallel vertical tubes of the lifting frame. The utility model can carry out gas-liquid mass transfer in a closed environment, and the aeration effect can be transmitted to a large-scale pool surface, and has a better oxygen increasing effect.

Description

pool water circulation aerator

Technical field: The utility model relates to the field of water body aeration and oxygenation devices, in particular to the improvement of pond water mechanical aeration and oxygenation devices.

Background technology: in the existing biochemical treatment ponds, especially fish ponds, in order to maintain the biochemical oxygen demand, the blast aeration method and the mechanical aeration method are often used to oxygenate the ponds. The blower aeration method needs to lay a complex pipeline system in the pond, and also needs to buy blowers and other equipment. The investment in structure and civil engineering is too large, which is far beyond the economic bearing capacity of the existing professional fish farming households in rural ponds; the mechanical aeration method equipment is more expensive. Simple and low investment, it is widely used in professional fish farming households in rural ponds at present, but the existing mechanical aeration methods all use vertical axial flow aeration impellers, that is, use axial flow aeration that is vertically inserted into the pond water to an appropriate depth The negative pressure generated by the rotation of the impeller lifts the deep pool water to the negative pressure area of the aeration impeller, mixes with the air sucked from the upper liquid surface renewal area, and then throws it into the air into the pool after gas-liquid mass transfer. ; Since the gas-liquid mass transfer is carried out in a basically open environment, the partial pressure of oxygen in the water droplets is difficult to increase, and the scope of action is limited to the shallow water surface, so the overall oxygenation effect is not ideal, so that the ponds stocked Fish tails are prone to anorexia, illness, and slow weight gain, which affects the improvement of economic benefits of breeding.

Summary of the invention: In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a gas-liquid mass transfer in a closed environment, and the aeration effect can be transmitted to a wide range of pool surfaces, with better Pool water circulation aerator with oxygenation effect.

For this reason, the technical solution of the utility model is a pool water circulation aerator, which is fixed on the supporting structure, and is characterized in that: the pool water circulation aerator is immersed axially and horizontally in the pool water where the outlet pipe is For a deep water pump, an air injection hole communicating with an air suction pipe above the water surface is provided on the water outlet pipe section of the water pump close to the impeller.

The water pump is an axial-flow submersible pump; the angle between the axis of the outlet pipe of the submersible pump and the water level of the pool is within ±5°; The cloth is provided with an air injection hole, and the circle of the air injection hole communicates with an air suction pipe above the water surface through the air injection ring.

The throat section is the guide vane area supporting the impeller bearing, and the gas injection ring is arranged around the pipe wall of the guide vane section.

The supporting structure includes: a horizontal lifting beam fastened to the wall of the submersible pump, buoys connected to both sides of the horizontal lifting beam, and a lifting frame vertically fixed in the foundation of the pool bottom; and the two ends of the horizontal lifting beam are fixed There is a vertical sliding sleeve, and the vertical sliding sleeve is sleeved on two relatively parallel vertical pipes of the lifting frame in a sliding fit.

The air injection hole of the utility model is opened in the throat section of the water outlet pipe behind the impeller of the submersible pump. The flow velocity of this section is very high, the water flow is turbulent, and a strong negative pressure is generated, and fresh air is quickly sucked into the closed pipe section of the throat section through the air suction pipe. The highly dispersed water droplets in the throat section carry out sufficient gas-liquid mass transfer, which greatly increases the partial pressure of oxygen in the water droplets; the horizontally placed inlet/outlet pipes can promote the pond water area of about 10 mu to be about 0.08 meters The circular flow per second expands the oxygenation range to the vast range of the pond, and the oxygenation effect is significantly greater than that of conventional aerators; in addition, it is found in practice that due to the large-area circulation of pond water, fish swim against the water; the above Under the joint action of various positive factors, the food intake of fish has increased by more than 1 to 3 times, the growth rate has increased by more than 1.5 times, and the disease resistance has been increased at the same time; Reduced management and labor intensity;

The utility model adopts a stereotyped axial-flow submersible pump and is slightly modified. The utility model has the advantages of simple structure, easy implementation, obvious effect and broad market prospect.

Description of drawings: Now, the utility model is described in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of the overall structure of an embodiment of the utility model.

Fig. 2 is a structural schematic diagram of a pool water circulation aerator converted from an axial-flow submersible pump.

Specific embodiments: As shown in Figure 1: the pool water circulation aerator of the utility model is an axial-flow submersible pump 1 fixed on a support structure, and the support structure includes: a level that is fastened to the outer wall of the submersible pump 1 Lifting beam 2, buoys 3 connected to both sides of horizontal lifting beam 2, and lifting frame 4 vertically fixed in the foundation of the pool bottom; and the two ends of horizontal lifting beam 2 are fixed with vertical sliding sleeves 2-0, The vertical sliding sleeve 2-0 is slidably fitted on the two relatively parallel vertical pipes of the lifting frame 4; the water inlet of the axial flow submersible pump 1 is also covered with a water filter Trash rack cover 5.

The axial-flow submersible pump 1, its whole body, the water inlet pipe 1-1, and the water outlet pipe 1-0 are immersed in an appropriate depth in the pool water axially and horizontally, and the axial direction of the water inlet pipe 1-1, the water outlet pipe 1-0 is in line with the The included angle of the pool level is within ±5°; the outlet pipe section 1-0 adjacent to the impeller of the axial flow submersible pump 1 is provided with an air injection hole communicated with the air suction pipe 6 above the water surface (see Figure 2).

As shown in Figure 2: the front end of the outlet pipe 1-0 of the axial flow submersible pump 1 is in contact with the guide vane area 1-3 of the bearing supporting the impeller 1-2, and the guide vane area 1-3 constitutes a In the throat section of the water pipe 1-0, air injection holes 6-0 are evenly distributed in the circumferential direction of the throat section, and the ring of air injection holes 6-0 passes through the air injection ring 6 arranged on the pipe wall of the guide vane area 1-3 -1 communicates with an air suction pipe 6 above the water surface.

Turn on the submersible pump 1, the impeller 1-2 rotates at high speed, and the flow area of the guide vane area 1-3 after that shrinks, the flow velocity is high, the water flow is turbulent, and a strong negative pressure is generated, and fresh air is injected through the air suction pipe 6. The ring road 6-1 and the air injection hole 6-0 are quickly sucked into the closed pipe section behind the guide vane area 1-3, and conduct sufficient gas-liquid mass transfer with the highly dispersed water droplets therein, increasing the oxygen partial pressure in the water droplets; at the same time , the water inlet pipe 1-1 and the water outlet pipe 1-0 placed horizontally can impel pond water to circulate in a large area, expand the oxygenation interval to the vastest range of the pond, and the oxygenation effect is obviously greater than that of conventional aerators.

Claims (4)

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.

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