CN221181754U - Jet-type foam removing device and aeration system - Google Patents

Abstract

The utility model relates to a jet-type foam removing device and an aeration system, wherein the jet-type foam removing device comprises: a jet cavity having a foam inlet and a jet outlet; the jet flow piece is arranged in the jet flow cavity and is provided with a jet flow nozzle, and the jet flow nozzle is opposite to the jet flow outlet; a foam inlet pipe communicated with the foam inlet; the defoaming plate is arranged at one end of the jet outlet far away from the jet cavity and is opposite to the jet outlet; and the liquid outlet pipe is arranged below the defoaming plate and is used for discharging liquid after foam is eliminated. The utility model adopts jet flow type design, has simple and reasonable structure, avoids the existence of a rotating unit, greatly reduces the failure rate and has high defoaming efficiency.

Description

Jet-type foam removing device and aeration system

Technical Field

The utility model relates to the field of sewage treatment, in particular to a jet type foam cleaning device and an aeration system.

Background

In the treatment of industrial wastewater, air floatation, aeration and other processes are often used, and a large amount of foam is easily generated in the processes, so that the refractory foam is unfavorable for accurate metering of liquid, is easy to influence environmental sanitation and pollution, and is easy to overflow to influence the operation of a system. The prior art generally adopts machinery to eliminate foam, such as a rotary circular plate type defoaming device, a rotary blade type defoaming device, a centrifugal defoaming device and the like, and the defoaming technology has certain defoaming effect, but generally adopts a motor as power, so that the defoaming efficiency is low, the wear is easy, and the maintenance amount is large.

Disclosure of utility model

The utility model aims to provide a jet flow type foam removing device and an aeration system, which adopt a jet flow type design, have simple and reasonable structure, avoid the existence of a rotating unit, greatly reduce the failure rate and have high defoaming efficiency.

A jet foam removal device comprising: a jet cavity having a foam inlet and a jet outlet; the jet flow piece is arranged in the jet flow cavity and is provided with a jet flow nozzle, and the jet flow nozzle is opposite to the jet flow outlet; a foam inlet pipe communicated with the foam inlet; the defoaming plate is arranged at one end of the jet outlet far away from the jet cavity and is opposite to the jet outlet; and the liquid outlet pipe is arranged below the defoaming plate and is used for discharging liquid after foam is eliminated.

In the technical scheme, the jet piece can spray water, water flow drives air in the jet cavity, thereby negative pressure is formed in the jet cavity, foam is sucked into the jet cavity from the foam inlet pipe through the foam inlet under the action of the negative pressure, then the foam is mixed with water, the foam is sprayed out from the jet outlet together under the pressure sprayed by the jet piece, the water mixed with the foam collides with the defoaming plate to break the foam, the broken foam is reduced into liquid and flows out from the liquid outlet pipe, the defoaming effect is realized, the whole structure is simple and reasonable, the defoaming is carried out in a jet mode, the existence of a rotating unit can be avoided, the failure rate is greatly reduced, and the defoaming efficiency is high.

Further, a water inlet pipe is arranged at one end of the jet piece, which is far away from the jet nozzle.

In the technical scheme, the jet piece can supply water through the water inlet pipe and jet water from the jet nozzle so as to form jet for defoaming.

Further, the water inlet pipe is provided with a first stop valve.

In the technical scheme, the first stop valve can control the opening and closing of the water inlet pipe, so that the working state of the jet flow piece is controlled.

Furthermore, the lower end of the defoaming plate is provided with an inclined flow guiding surface, and the flow guiding surface is connected with the liquid outlet pipe.

In the technical scheme, after the water flow mixed with the foam hits the defoaming plate, the foam is broken into liquid under the action of impulsive force, and the liquid can flow into the liquid outlet pipe along the diversion surface and be discharged. The flow velocity of liquid can be reduced through the flow guide surface, so that the liquid is prevented from forming turbulence to generate foam again, and the defoaming effect is ensured.

Further, the liquid outlet pipe is provided with at least one layer of filter screen.

In the technical scheme, the filter screen can cut foam, so that residual foam is eliminated, and the defoaming effect is further improved.

Further, a plurality of needles are arranged on the surface of one side of the defoaming plate, which faces the jet outlet.

In the technical scheme, when the foam collides with the defoaming plate, the puncture needle can puncture the foam, so that the defoaming effect is ensured.

Further, the foam inlet pipe is provided with a second stop valve.

In the technical scheme, the second stop valve can control the opening and closing of the foam inlet pipe, so that the connection and disconnection between the jet flow cavity and the device to be defoamed are controlled.

The aeration system comprises the jet type foam removing device and the aeration device, wherein the jet type foam removing device is arranged above the aeration device, and the foam inlet pipe is communicated with the aeration device.

Compared with the prior art, the utility model has the beneficial effects that: the jet flow piece can spray water, the rivers drive the air in the jet flow chamber, thereby form the negative pressure in the jet flow chamber, make foam follow bubble pipe via foam entry suction jet flow chamber under the effect of negative pressure, foam and water mix afterwards, and together spout from the jet flow export under the pressure that jet flow piece sprayed, the water that mixes the foam collides with the defoaming board and makes the foam break, foam after breaking reduces into liquid and flows out from the drain pipe, thereby realize the effect of defoaming, overall structure is simple reasonable, foam is carried out through the fluidic mode, the existence of rotation unit can be avoided, greatly reduced fault rate, and defoaming efficiency is high.

Drawings

Fig. 1 is a schematic structural view of a jet type foam removing device according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of an aeration system according to an embodiment of the present utility model.

Reference numerals illustrate:

The device comprises a jet cavity 1, a foam inlet 11, a jet outlet 12, a jet piece 2, a jet nozzle 21, a water inlet pipe 22, a foam inlet pipe 3, a defoaming plate 4, a liquid outlet pipe 5, a first stop valve 6, a diversion surface 7, a second stop valve 8, an aeration device 9, a jet foam cleaning device 10 and a filter screen 11.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, in a preferred embodiment, a jet type foam removing apparatus 10 of the present utility model mainly includes a jet cavity 1, a jet member 2, a foam inlet pipe 3, a foam removing plate 4, and a liquid outlet pipe 5. The jet cavity 1 is provided with a foam inlet 11 and a jet outlet 12, wherein the foam inlet 11 is positioned at the lower end of the jet cavity 1 and is used for extracting foam, and the jet outlet 12 is positioned at one end of the jet cavity 1 in the horizontal direction and is used for jetting jet.

The jet member 2 is disposed in the jet cavity 1, specifically, the jet member 2 has a jet nozzle 21, the jet nozzle 21 is opposite to the jet outlet 12, and water flow can be ejected through the jet nozzle 21 and flow out of the jet cavity 1 from the jet outlet 12, and it is understood that the jet member 2 can adopt an existing jet device, and the disclosure of the present application is not repeated herein.

The foam inlet pipe 3 communicates with the foam inlet 11, through which foam can be drawn into the jet cavity 1. In practice, the foam inlet pipe 3 may be connected to a device that is prone to foam generation, such as an aeration device 9 or an air flotation device.

The defoaming plate 4 is arranged at one end of the jet outlet 12 away from the jet cavity 1 and is opposite to the jet outlet 12, and the liquid outlet pipe 5 is arranged below the defoaming plate 4 and is used for discharging liquid after foam elimination.

During implementation, the jet piece 2 can spray water, water flow drives air in the jet cavity 1, thereby negative pressure is formed in the jet cavity 1, foam is sucked into the jet cavity 1 from the foam inlet pipe 3 through the foam inlet 11 under the action of the negative pressure, foam and water are mixed, the foam and the water are sprayed out from the jet outlet 12 together under the pressure sprayed by the jet piece 2, the water mixed with the foam collides with the defoaming plate 4 to break the foam, the broken foam is reduced into liquid and flows out from the liquid outlet pipe 5, the defoaming effect is realized, the whole structure is simple and reasonable, the defoaming is realized through a jet flow mode, the existence of a rotating unit can be avoided, the fault rate is greatly reduced, and the defoaming efficiency is high.

In this embodiment, the jet member 2 is provided with a water inlet pipe 22 at an end thereof remote from the jet nozzle 21, the water inlet pipe 22 being in communication with an external water supply pipe or water supply device, not shown, and the jet member 2 being capable of supplying water through the water inlet pipe 22 and ejecting water from the jet nozzle 21 to form a jet for defoaming.

The water inlet pipe 22 is provided with a first stop valve 6, and the first stop valve 6 can control the opening and closing of the water inlet pipe 22, thereby controlling the working state of the jet member 2.

The lower extreme of defoaming board 4 is equipped with inclined guide surface 7, and guide surface 7 is connected with drain pipe 5. When the water flow mixed with the foam hits the defoaming plate 4, the foam breaks into liquid under the action of impact force, and the liquid can flow into the liquid outlet pipe 5 along the flow guiding surface 7 and be discharged. The flow velocity of the liquid can be reduced through the flow guide surface 7, so that the liquid is prevented from forming turbulence to generate foam again, and the defoaming effect is ensured.

The drain pipe 5 is equipped with at least one deck filter screen 11, and the filter screen 11 can cut the foam to eliminate remaining foam, further promote defoaming effect. In this embodiment, the filter screen 11 is provided in two layers, and the two layers of filter screens 11 can further enhance the effect of eliminating foam while ensuring that liquid can be smoothly discharged from the liquid outlet pipe 5.

The defoaming plate 4 has a plurality of needles arranged on a side surface facing the jet outlet 12. When foam collides with the defoaming plate 4, the puncture needles can puncture the foam, so that the defoaming effect is ensured. In some possible embodiments, the surface of the foam breaker plate 4 facing the jet outlet 12 may be a roughened surface to ensure the effect of the foam upon impact with the foam breaker plate 4.

The liquid outlet pipe 5 is provided with a second stop valve 8, and the second stop valve 8 can control the opening and closing of the bubble inlet pipe 3, so as to control the connection and disconnection between the jet flow cavity 1 and the device to be defoamed.

The first stop valve 6 and the second stop valve 8 may be conventional liquid valves, and the present application is not described herein.

The utility model also provides an aeration system which comprises the jet flow type foam removing device 10 and the aeration device 9, wherein the jet flow type foam removing device 10 is arranged above the aeration device 9, and the foam inlet pipe 3 is communicated with the aeration device 9. Through communicating bubble inlet pipe 3 with aeration equipment 9, can inhale the efflux chamber 1 with the foam that aeration equipment 9 produced to defoaming through the efflux, thereby avoid the foam to influence the system operation.

In the description of the present utility model, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A jet foam removal apparatus, comprising:

a jet cavity having a foam inlet and a jet outlet;

The jet flow piece is arranged in the jet flow cavity and is provided with a jet flow nozzle, and the jet flow nozzle is opposite to the jet flow outlet;

a foam inlet pipe communicated with the foam inlet;

The defoaming plate is arranged at one end of the jet outlet far away from the jet cavity and is opposite to the jet outlet; and

And the liquid outlet pipe is arranged below the defoaming plate and is used for discharging liquid after foam is eliminated.

2. The jet foam removal apparatus as set forth in claim 1, wherein an end of said jet member remote from said jet nozzle is provided with a water inlet tube.

3. The jet foam removal apparatus as set forth in claim 2, wherein said inlet tube is provided with a first shut-off valve.

4. The jet-type foam removal device according to claim 1, wherein the lower end of the defoaming plate is provided with an inclined guide surface, and the guide surface is connected with the liquid outlet pipe.

5. The jet foam removal apparatus as set forth in claim 1, wherein said outlet tube is provided with at least one layer of filter mesh.

6. The jet foam removal device of claim 1, wherein a side surface of the foam removal plate facing the jet outlet is lined with a plurality of lancets.

7. The jet foam removal apparatus as set forth in claim 1, wherein said foam inlet tube is provided with a second shut-off valve.

8. An aeration system comprising a jet flow type foam removing device according to any one of claims 1 to 7, and an aeration device, wherein the jet flow type foam removing device is arranged above the aeration device, and the foam inlet pipe is communicated with the aeration device.