Impact type bubble eliminating device

Abstract

The utility model discloses an impact type bubble eliminating device which comprises a water pipe, a spray head and an impact disc, the impact disc is located above the spray head, the spray head is located above the liquid level in an aeration chamber, and a water outlet of the water pipe is communicated to an inlet of the spray head. The nozzle is located under the impact disc, and spurs are distributed on the surface, facing the nozzle, of the impact disc. During working, the collision head sprays water, the sprayed water flow has a certain speed, the water flow is cut by the spikes distributed on the surface of the collision disc when colliding with the surface of the collision disc and collides with one another to form fine water drops, the water drops splash and are scattered on the liquid level in the aeration chamber, and bubbles are broken due to collision of the water drops, so that defoaming is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially, it relates to a kind of aeration chamber defoaming device of marine domestic sewage treatment equipment. BACKGROUND

[0002] At present, in the domestic sewage treatment system of ship, due to the high concentration of sewage and the rich organic matter content, a large amount of foam is easily generated in the biochemical treatment process. These foams not only reduce the aeration efficiency, affect the oxygen transfer in the biochemical tank, but also may cause water accumulation and blockage of the aeration pipeline, causing more complex maintenance problems. The traditional solution often relies on the addition of chemical defoaming agent, but this may adversely affect the microbial community of the biochemical system or increase the difficulty of the backend treatment. At the same time, the treatment cost increases, which also causes environmental pollution. Therefore, the development of a physical defoaming technology that does not rely on chemical additives has become an industry demand. SUMMARY

[0003] In order to solve the defects in the prior art, the utility model provides a kind of impact type water bubble elimination device, and the water droplets generated by the water flow impact mode can effectively eliminate the water bubble on the liquid surface in the aeration chamber.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical scheme:

[0005] An impact type water bubble elimination device is arranged in the aeration chamber, comprising:

[0006] A spray head is exposed to the liquid surface in the aeration chamber, and the spray head has an upward spray port.

[0007] An impact disc is located above the spray head.

[0008] A water supply pipe is connected to the spray head at one end.

[0009] The impact type water bubble elimination device of the present technical solution sprays water from the spray head, and the sprayed water flow has a certain speed. When the water flow impacts the lower surface of the impact disc, it is impacted and generates water droplets. The water droplets are splashed out and fall on the liquid surface inside the aeration chamber. Due to the impact of the water droplets, the water bubbles are broken, thereby eliminating the water bubbles on the liquid surface inside the aeration chamber.

[0010] In the specific embodiment of the utility model, the lower surface of the impact disc facing the spray head is distributed with spikes.

[0011] In the specific embodiment of the utility model, the spray head is located directly below the impact disc at a vertical angle.

[0012] In the specific embodiment of the utility model, the water pump is arranged outside the aeration chamber, and the inlet and outlet of the water pump are respectively communicated with the water inlet pipe and the water outlet pipe, and the water outlet pipe is communicated to the inlet of the water supply pipe.

[0013] In the specific embodiment of the utility model, the part of the water supply pipe outside the aeration chamber is provided with a first angle valve.

[0014] In the specific embodiment of the utility model, a water decanting chamber is further arranged beside the aeration chamber, the water inlet pipe is provided with a branch pipe communicated to the bottom of the aeration chamber and the water decanting chamber, and a second angle valve is arranged on the branch pipe.

[0015] In the specific embodiment of the utility model, the spray head is connected with the impact disc through a connecting piece, the connecting piece comprises a cross beam frame and support rods located at the two ends of the cross beam frame, the lower ends of the support rods are fixed on the opposite two side walls of the spray head, and the impact disc is fixed below the cross beam frame.

[0016] In the specific embodiment of the utility model, the support rods are arc-shaped.

[0017] In the specific embodiment of the utility model, the impact disc is circular.

[0018] The utility model has the beneficial effects that: firstly, water is pumped out by the water pump, and after being sprayed out by the spray head, the water flow is cut by the protrusions distributed on the lower surface of the impact disc to generate fine water droplets, the water droplets are splashed to the liquid surface in the aeration chamber to impact the water bubbles on the liquid surface, so that the water bubbles are broken to realize gas-liquid separation and defoaming. Secondly, the defoaming process is realized by the impact mode, which is a pure physical means without adding any chemical reagent, so the cost is low and no environmental pollution is caused. Thirdly, the water for defoaming can be pumped out from the aeration chamber and the water decanting chamber of the sewage treatment device, the water is convenient to take, can be recycled, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings:

[0020] Figure 1 It is the structure schematic drawing of the utility model;

[0021] Figure 2 It is the structure schematic drawing of the impact disc;

[0022] Figure 3 It is the structure schematic drawing of the sewage treatment device.

[0023] In the drawings:

[0024] 100. Nozzle; 101. Impact plate; 102. Water supply pipe; 103. Water pump; 104. Spike; 105. First angle valve; 106. Connecting pipe; 107. Inlet pipe; 108. Outlet pipe; 200. Sewage treatment equipment; 201. First aeration chamber; 202. Second aeration chamber; 203. Decanting chamber; 204. Second angle valve; 205. Drain valve; 300. Crossbeam frame; 301. Support rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms such as "upper," "lower," "left," "right," "top," "bottom," "side," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model.

[0027] like Figure 1 As shown, the impact-type bubble elimination device of this utility model is installed in an aeration chamber and includes a nozzle 100, an impact plate 101, and a water supply pipe 102. The nozzle 100 is exposed above the liquid surface in the aeration chamber with the nozzle opening facing upwards. The impact plate 101 is located above the nozzle 100 with the nozzle opening facing the lower surface of the impact plate 101. One end of the water supply pipe 102 is connected to the nozzle 100.

[0028] When the bubble elimination device is working, the nozzle 100 sprays water. The sprayed water has a certain speed. When the water flow impacts the lower surface of the impact plate 101, it is impacted and dispersed to generate water droplets. The water droplets splash downwards and fall onto the liquid surface in the aeration chamber. Due to the impact of the water droplets, the water bubbles on the liquid surface in the aeration chamber are broken, thereby eliminating the water bubbles on the liquid surface.

[0029] The water used for defoaming can be drawn from the water source using a pump or a high-pressure water tap. In this embodiment, a water pump 103 is installed outside the aeration chamber. The inlet and outlet of the water pump 103 are connected to an inlet pipe 107 and an outlet pipe 108, respectively. The outlet pipe 108 is connected to the other end of the water supply pipe 102, which is connected to the nozzle 100. During operation, the water pump 103 draws water from the water source through the inlet pipe 107. The drawn water has a certain speed, and the water flows through the outlet pipe 108 into the water supply pipe 102 and is sprayed out by the nozzle 100.

[0030] To improve the defoaming effect of water droplets generated after the water flow impacts the impact plate 101, in this embodiment, the nozzle 100 is positioned directly below the impact plate 101 at a vertical angle. This ensures the water flow impacts the impact plate 101 at a vertical angle, resulting in a better impact effect, higher droplet velocity, and improved defoaming. Simultaneously, the impact plate 101 has protrusions 104 distributed on its lower surface facing the nozzle 100. When the water flow impacts the impact plate 101, it is cut and collided with these protrusions, generating fine water droplets. These droplets are more uniform and denser, thus achieving a better defoaming effect.

[0031] A first angle valve 105 is installed at an appropriate location on the water supply pipe 102. The first angle valve 105 can adjust the size and speed of the water flow. By adjusting the first angle valve 105, the size, density, and speed of the water droplets generated after the water flow impacts the disc 101 can be adjusted. If necessary, the first angle valve 105 can be closed, thus stopping the bubble elimination device from working. In this embodiment, the first angle valve 105 is located on the pipe of the water supply pipe 102 located outside the aeration chamber for easy operation by personnel.

[0032] The nozzle 100 is fixed to the impact plate 101 via a connector. The connector includes a crossbeam 300 and support rods 301 located at both ends of the crossbeam 300. The lower ends of the support rods 301 are fixed to the opposite side walls of the nozzle 100, and the impact plate 101 is fixed below the crossbeam 300. The impact plate 101, nozzle 100, and connector are fixed together by welding. The connector needs to have sufficient strength to withstand the impact of high-speed water flow, and also needs to have moisture-resistant and corrosion-resistant properties to adapt to the working environment inside the aeration chamber. The number of support rods 301 should not be too large to avoid a large number of water droplets hitting the support rods 301 and not falling onto the liquid surface, thus affecting the defoaming effect. In this embodiment, there are two support rods 301 in an arc shape.

[0033] The nozzle 100 is conical at one end facing the impact plate 101 and cylindrical at the other end. The cylindrical end is connected to the water supply pipe 102 via the connecting pipe 106.

[0034] Combination Figure 2As shown, the shape of the impact disc 101 can be circular, oval, square, etc., which are not listed one by one, and in the embodiment, the impact disc 101 is circular. The size of the impact disc 101 is basically consistent with the size of the nozzle 100, so that the water droplets produced after the water flow impacts the impact disc 101 are better.

[0035] The shape of the protrusion 104 can be sawtooth, wedge, cone, square cone, triangular cone, etc., which are not listed one by one, as long as it has a sharp edge towards the direction of the nozzle 100 nozzle. In the embodiment, the shape of the protrusion 104 is sawtooth.

[0036] The impact type water bubble elimination device of the utility model can be installed in any aeration chamber of the sewage treatment equipment 200. In the embodiment, as shown, Figure 3 The sewage treatment equipment 200 has a first aeration chamber 201, a second aeration chamber 202 and a water separation chamber 203, and the water bubble elimination device is arranged in the first aeration chamber 201. The first aeration chamber 201, the second aeration chamber 202 and the water separation chamber 203 are all provided with branch pipes (not marked in the figure) at the bottom, and the branch pipes are all provided with second angle valves 204 and are communicated to the water inlet pipe 107. The water bubble elimination device needs to be continuously supplied with water source when working, which can be selected from external water source or can use the water source in the sewage treatment equipment 200. In the embodiment, the water pump 103 can take water from the first aeration chamber 201, the second aeration chamber 202 and the water separation chamber 203 through the second angle valve 204, so that the water source can be recycled, the water taking is convenient and the cost is also reduced. At the same time, the sludge in the aeration chamber (201, 202) and the water separation chamber 203 of the sewage treatment equipment 200 also needs to be discharged regularly. In order to share one water pump 103, the water outlet pipe 108 is provided with a sewage discharge valve 205, when the sewage needs to be discharged, the sewage discharge valve 205 is opened, and the first angle valve 105 is closed at the same time, so that the water pump 103 can discharge the sludge in the aeration chamber (201, 202) and the water separation chamber 203 through the outlet of the sewage discharge valve 205.

[0037] According to the technical scheme of the utility model, first, the water flow sprayed by the nozzle 100 impacts the impact disc 101, and the high-speed water flow is impacted by the lower surface of the impact disc 101 to generate water droplets, which are scattered on the liquid surface in the aeration chamber and impact the water bubbles on the liquid surface, so that the water bubbles are broken, thereby eliminating the water bubbles on the liquid surface in the aeration chamber. In order to improve the defoaming effect, the protrusions 104 can be distributed on the lower surface of the impact disc 101 towards the nozzle 100, so that the water droplets produced after the impact are more dense, and the defoaming effect is better. Secondly, the defoaming is realized by the water flow impact method, which is a pure physical means without adding any chemical reagent, and the cost is low and no environmental pollution is produced. Thirdly, the water used for defoaming can be taken from the aeration chamber (201, 202) and the water separation chamber 203 of the sewage treatment equipment 200, which is convenient to take water and can be recycled, and the cost is low.

[0038] The above has carried out the detailed description to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equal changes and improvements etc. that are made in the utility model application scope should still belong to the patent coverage scope of the utility model.

Claims

1. A bubble impingement elimination device provided in an aeration chamber, characterized by, It comprises: a spray head, which is exposed to the liquid surface in the aeration chamber, and the spray nozzle of which is upward; a baffle plate, which is located above the spray head; a water supply pipe, one end of which is connected to the spray head.

2. The impinging water bubble elimination device according to claim 1, characterized by: The baffle plate is provided with protrusions on its lower surface, which are distributed towards the spray head.

3. The impinging water bubble elimination device according to claim 1, characterized by: The spray head is located vertically below the baffle plate.

4. The impinging water bubble elimination device according to claim 1, characterized by: It further comprises a water pump, which is arranged outside the aeration chamber. The inlet and outlet of the water pump are respectively connected to the water inlet pipe and the water outlet pipe. The water outlet pipe is connected to the inlet of the water supply pipe.

5. The impinging water bubble elimination device according to claim 4, characterized by: The part of the water supply pipe outside the aeration chamber is provided with a first angle valve.

6. The impinging water bubble elimination device according to claim 4, characterized by: A water decanting chamber is arranged beside the aeration chamber, and the water inlet pipe is provided with a branch pipe, which is connected to the bottom of the aeration chamber and the water decanting chamber, and each of the branch pipes is provided with a second angle valve.

7. The impinging water bubble elimination device according to claim 1, characterized by: The spray head is connected to the baffle plate through a connecting member. The connecting member comprises a cross beam and support rods located at both ends of the cross beam. The lower ends of the support rods are fixed to the opposite side walls of the spray head. The baffle plate is fixed below the cross beam.

8. The impingement water bubble elimination device according to claim 7, characterized in that: The support rods are arc-shaped.

9. The impinging water bubble elimination device according to claim 1, characterized by: The baffle plate is circular.

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