Drop foam eliminating device

Abstract

The utility model relates to a drop foam eliminating device which comprises a spiral pipe and a water outlet pipe, the spiral pipe is provided with a water inlet and a water outlet; the section of the spiral pipe is spiral; a water inlet of the spiral pipe extends outwards to form a water inlet unit, and the water inlet unit is in sealed connection with the spiral pipe; the water inlet unit is provided with a water receiving opening and is hermetically communicated with the water inlet of the spiral pipe; a hot air unit is arranged in the water inlet unit; a hot air outlet of the hot air unit faces a water inlet of the spiral pipe; a plurality of water inlet holes are formed in the pipe wall of the water outlet pipe and are communicated with the water outlet of the spiral pipe; the water outlet pipe is provided with a water outlet and communicated with the outside; and the water outlet pipe is filled with a turbulent flow retarder. By the adoption of the drop foam eliminating device, foam can be effectively eliminated in a drop foam scene, the situation that the landscape and the sight are affected by the foam is avoided, and the ecological environment of the drop foam scene is improved.

Description

Technical Field

[0001] This utility model relates to a device for eliminating foam in waterfalls, belonging to the field of water treatment technology. Background Technology

[0002] In the field of water treatment, environments with cascading water from high to low levels are encountered. If these cascades contain surfactants and / or high-molecular-weight organic compounds, the water's potential energy is converted into kinetic energy during its descent. Upon contact with the water surface, the high-speed falling water carries a large amount of air, colliding violently and introducing air bubbles into the water. Due to the presence of surfactants and / or high-molecular-weight organic compounds, these bubbles do not dissipate quickly, resulting in a large amount of foam and creating a foamy cascade scenario. In this scenario, the foam spreads with the wind, polluting the air environment, and accumulates on the water surface, affecting the landscape and visibility. Simultaneously, the foam also prevents mass transfer between the water surface and the air, preventing oxygen from entering the water and causing the death of aquatic organisms. Currently, there are no known technologies for defoaming in this scenario. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by proposing a foam elimination device for waterfalls, specifically designed for foam waterfall scenarios, which can effectively eliminate foam in such scenarios.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A cascading foam elimination device includes a spiral tube and a horizontally arranged outlet pipe; the spiral tube has an inlet and an outlet. The cross-section of the spiral tube is helical, with the inlet located at the outer end of the helix and the outlet at the inner end. An inlet unit extends outward from the inlet of the spiral tube and is sealed to the spiral tube. The inlet unit is sealed by a side wall, with a water inlet at one end away from the inlet of the spiral tube, and the other end of the inlet unit near the inlet of the spiral tube is sealed to the inlet of the spiral tube. The side wall includes a base plate directly opposite the water inlet. A hot air unit is located inside the inlet unit, with its hot air outlet facing the inlet of the spiral tube. The outlet pipe extends perpendicular to the cross-section of the spiral tube. It is divided into a first section and a second section. The first section is located at the center of the spiral tube and is sealed and fixedly connected to it. The wall of the first section has several inlet holes that communicate with the outlet of the spiral tube. The second section has an outlet located outside the spiral tube and communicates with the outside environment through the outlet. The interior of the outlet pipe is filled with a turbulence damper.

[0006] In use, the upstream falling water flows into the inlet unit through the inlet, then through the spiral tube, and finally through the inlet hole into the outlet pipe, before flowing into the downstream water body. Because the water itself carries significant kinetic energy, it spirals forward at high speed upon entering the spiral tube. Due to centrifugal separation, a small amount of air bubbles carried in the water are separated and released to the surface. The foam separated by the spiral centrifugal force continuously accumulates in the spiral tube and eventually overflows into the inlet unit. Hot air continuously blown from the hot air unit comes into contact with the foam in the inlet unit, causing some of the water in the foam to vaporize and eliminate the foam. The unvaporized water then enters the water flow, effectively eliminating the foam accumulated within the device. The water flows into the outlet pipe through the inlet hole, which consumes the kinetic energy of the water flow, transforming it into turbulent flow entering the outlet pipe. The turbulence damper inside the outlet pipe dissipates the turbulence energy, enabling the outlet pipe to discharge defoamed water.

[0007] The present invention may also adopt the following preferred embodiments:

[0008] Preferably, the cascading foam elimination device has the following characteristics: the water inlet of the water inlet unit is located obliquely above the water inlet of the spiral tube; the bottom plate of the water inlet unit is arranged obliquely and the angle formed with the upstream cascading water flow is 5° to 15°; the water inlet hole is located at the top or obliquely above the first section of the water outlet pipe; and the lower edge of the water outlet of the second section of the water outlet pipe is flush with the downstream water surface line.

[0009] By adopting this preferred scheme, the specific state of the waterfall foam elimination device can be further optimized.

[0010] Preferably, the cross-section of the spiral tube is a helix with more than 1 turn; the spiral tube is formed by a spiral wall plate.

[0011] By adopting this preferred scheme, the specific structural features of the spiral tube can be further optimized.

[0012] Preferably, the sidewall of the water inlet unit is composed of a bottom plate, a top plate, a left side plate, and a right side plate.

[0013] More preferably, the top ends of the bottom plate, top plate, left side plate, and right side plate form the water inlet of the water inlet unit, the bottom end of the bottom plate is sealed to the water inlet of the spiral tube, and the bottom ends of the top plate, left side plate, and right side plate are respectively sealed to the outer wall of the spiral tube.

[0014] By adopting the above preferred scheme, the specific structural features of the water inlet unit can be further optimized.

[0015] Preferably, the hot air unit includes a hot air blower, the outlet of which is connected to a hot air duct, and the hot air unit has a set of hot air outlets located on the hot air duct, with the hot air outlets facing the water inlet of the spiral tube; the hot air duct is arranged horizontally, and the water inlet of the spiral tube is located within the coverage area of ​​all the hot air outlets.

[0016] More preferably, the hot air blower and the hot air pipe are fixedly supported on the side wall of the water inlet unit.

[0017] By adopting the above preferred scheme, the specific structural features of the hot air unit can be further optimized.

[0018] Preferably, the diameter of the inlet hole of the outlet pipe is 5-20mm.

[0019] Preferably, the water inlet holes are arranged in at least one row along the extension direction of the water outlet pipe.

[0020] By adopting the above preferred scheme, the specific technical features of the water inlet hole of the water outlet pipe can be further optimized.

[0021] Preferably, the turbulence reducer is a Pall ring, a Raschig ring, or a multifaceted hollow sphere.

[0022] By adopting the above preferred scheme, the specific technical features of the turbulence reducer in the outlet pipe can be further optimized.

[0023] The foam elimination device of this utility model can effectively eliminate foam in foam waterfall scenarios, prevent foam from affecting the landscape and sightline, and improve the ecological environment. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0026] Figure 2 for Figure 1 A schematic diagram of AA.

[0027] Figure 3 This is a schematic diagram illustrating a specific implementation of Embodiment 1 of this utility model. Detailed Implementation

[0028] Example 1

[0029] like Figures 1 to 3 As shown, the water drop foam elimination device of this embodiment includes a spiral tube 01 and a horizontally arranged water outlet tube 02; the spiral tube 01 has a water inlet and a water outlet.

[0030] The cross-section of the spiral tube 01 is a spiral with more than one turn. The inlet of the spiral tube 01 is located at the outer end of the spiral, and the outlet of the spiral tube 01 is located at the inner end of the spiral. The spiral tube 01 is formed by a spiral wall plate.

[0031] The water inlet of the spiral tube 01 extends outward to form a water inlet unit 03, which is sealed to the spiral tube 01.

[0032] The water inlet unit 03 is sealed by a side wall. The end of the water inlet unit 03 away from the water inlet of the spiral tube 01 has a water inlet 35, and the other end of the water inlet unit 03 near the water inlet of the spiral tube 01 is sealed and connected to the water inlet of the spiral tube 01. In this way, a sealed receiving space is formed inside the water inlet unit 03 to contain water flow and foam, preventing direct flow to the outside.

[0033] Specifically, the sidewall of the water inlet unit 03 is composed of a bottom plate 31, a top plate 32, a left side plate 33, and a right side plate 34. The bottom plate 31 is directly connected to the water inlet 35. The tops of the bottom plate 31, top plate 32, left side plate 33, and right side plate 34 form the water inlet 35 of the water inlet unit. The bottom end of the bottom plate 31 is sealed to the water inlet of the spiral tube 01. The bottom ends of the top plate 32, left side plate 33, and right side plate 34 are respectively sealed to the outer wall of the spiral tube 01.

[0034] The water inlet unit 03 is equipped with a hot air unit 04. The hot air unit 04 includes a hot air blower 41, the outlet of which is connected to a hot air duct 42. The hot air duct 42 has a set of hot air outlets 43, which face the water inlet of the spiral tube 01. The hot air duct 42 is arranged horizontally, and the water inlet of the spiral tube 01 is located within the coverage area of ​​all the hot air outlets 43. The hot air blower 41 and the hot air duct 42 are respectively fixedly supported on the side wall of the water inlet unit 03. Note: The power supply for the hot air blower 41 can be AC ​​mains power. A cable can be used to connect the hot air blower 41 to AC mains power by passing through the top plate 32 of the water inlet unit. Commercially available waterproof hot air blowers can be used for the hot air blower 41; these are existing technologies and will not be described in detail here.

[0035] The extension direction of the water outlet pipe 02 is perpendicular to the cross-section of the spiral pipe 01. The water outlet pipe 02 is divided into a first section water outlet pipe 21 and a second section water outlet pipe 22. The first section water outlet pipe 21 is located at the center of the spiral pipe 01 and is sealed and fixedly connected to the spiral pipe 01. The pipe wall of the first section water outlet pipe 21 has several water inlet holes 23 (diameter 5-20mm). The water inlet holes 23 are arranged in at least one row along the extension direction of the water outlet pipe 02. These water inlet holes 23 are connected to the water outlet of the spiral pipe 01. The second section water outlet pipe 22 has a water outlet. The second section water outlet pipe 22 is located outside the spiral pipe 01 and is connected to the outside through the water outlet.

[0036] The inside of the water outlet pipe 02 is filled with a turbulence reducer 24, which is a Pall ring, Raschig ring, multifaceted hollow sphere, etc.

[0037] The water inlet foam elimination device of this embodiment has the following features: the water inlet 35 of the water inlet unit is located obliquely above the water inlet of the spiral tube 01; the bottom plate 31 of the water inlet unit 03 is arranged obliquely and the angle formed with the upstream falling water flow is 5° to 15°; the water inlet hole 23 is located at the top or obliquely above the first section of the water outlet pipe 21; and the lower edge of the outlet of the second section of the water outlet pipe 22 is flush with the downstream water surface line.

[0038] The usage process of this embodiment is as follows:

[0039] like Figure 3 As shown, the device of this embodiment is placed downstream of the target waterfall scene. The water inlet 35 of the water inlet unit is aligned with the upstream waterfall flow 51. The angle is adjusted so that the bottom plate 31 of the water inlet unit 03 is arranged obliquely and forms an angle of 5° to 15° with the waterfall flow. At the same time, the lower edge of the outlet of the water outlet pipe 02 is adjusted to be flush with the downstream water surface line.

[0040] The upstream water flows into the inlet unit 03 through the inlet 35, then through the spiral pipe 01, and then through the inlet hole 23 into the outlet pipe 02, before flowing into the downstream water body.

[0041] The relative angle between the upstream falling water flow and the bottom plate 31 of the water inlet unit is small, which greatly reduces the generation of water droplets and water mist during the contact process. Furthermore, when the water flow comes into contact with the surface of the water body 52 in the water inlet unit 03, it can avoid the generation of water droplets and water mist due to intense air exchange. Since the water flow itself has a lot of kinetic energy, it moves forward at high speed in a spiral after entering the spiral tube 01. At this time, due to the centrifugal separation effect, a small amount of air bubbles carried in the water will be separated to the outside of the water surface.

[0042] Subsequently, on the one hand, the foam separated by the spiral centrifugal separator continuously accumulates in the spiral tube 01 (the boundary between the foam and the water body, i.e., the water surface line 54, such as...). Figure 3 As shown in the diagram, the water eventually overflows into the water inlet unit 03. The hot air continuously blown out by the hot air unit 04 comes into contact with the foam 53 in the water inlet unit 03. The water in the foam will partially vaporize, thus eliminating the foam. The unvaporized water will enter the water flow, thereby effectively eliminating the foam accumulated in the device. On the other hand, the water flow enters the water outlet pipe 02 through the water inlet holes 23. These water inlet holes 23 with a diameter of 5-20mm can consume the kinetic energy of the water flow, turning the water flow into turbulence entering the water outlet pipe 02. The turbulence damper 24 installed in the water outlet pipe 02 plays a role in turbulence energy dissipation. After most of the energy of the water flow is eliminated, the possibility of subsequent air bubbles being introduced can be greatly reduced, so that the water outlet pipe 02 can achieve defoamed water discharge. Moreover, the water outlet pipe 02 enters the downstream water body from the downstream water surface line, avoiding the generation of foam again due to the drop.

[0043] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A device for eliminating foam in waterfalls, characterized in that, The device includes a spiral tube and a laterally arranged outlet pipe. The spiral tube has an inlet and an outlet. The cross-section of the spiral tube is helical, with the inlet located at the outer end of the helix and the outlet located at the inner end. An inlet unit extends outward from the inlet of the spiral tube and is sealed to the spiral tube. The inlet unit is sealed by a side wall, with a water inlet at one end away from the inlet of the spiral tube, and the other end of the inlet unit near the inlet of the spiral tube is sealed to the inlet of the spiral tube. The side wall includes a base plate directly opposite the water inlet. The water inlet unit is equipped with a hot air unit, the hot air outlet of which faces the water inlet of the spiral tube. The water outlet pipe extends perpendicularly to the cross-section of the spiral tube and is divided into a first section and a second section. The first section is located at the center of the spiral tube and is sealed and fixedly connected to it. The wall of the first section has several inlet holes, which communicate with the water outlet of the spiral tube. The second section has an outlet located outside the spiral tube and communicates with the outside through the outlet. The inside of the water outlet pipe is filled with a turbulence damper.

2. The water-splash foam elimination device according to claim 1, characterized in that, The water-fall foam elimination device has the following features: the water inlet of the water inlet unit is located obliquely above the water inlet of the spiral tube; the bottom plate of the water inlet unit is arranged obliquely and the angle formed with the upstream falling water flow is 5° to 15°; the water inlet hole is located at the top or obliquely above the first section of the water outlet pipe; and the lower edge of the water outlet of the second section of the water outlet pipe is flush with the downstream water surface line.

3. The foam elimination device for waterfalls according to claim 1, characterized in that, The cross-section of the spiral tube is a spiral with more than 1 turn; the spiral tube is surrounded by a spiral wall plate.

4. The foam elimination device for waterfalls according to claim 1, characterized in that, The sidewall of the water inlet unit is composed of a bottom plate, a top plate, a left side plate, and a right side plate.

5. A foam elimination device for waterfalls according to claim 4, characterized in that, The top ends of the bottom plate, top plate, left side plate, and right side plate form the water inlet of the water inlet unit. The bottom end of the bottom plate is sealed to the water inlet of the spiral tube, and the bottom ends of the top plate, left side plate, and right side plate are respectively sealed to the outer wall of the spiral tube.

6. A foam elimination device for waterfalls according to any one of claims 1 to 5, characterized in that, The hot air unit includes a hot air blower, the outlet of which is connected to a hot air duct. The hot air unit has a set of hot air outlets located on the hot air duct, and the hot air outlets face the water inlet of the spiral tube. The hot air duct is arranged horizontally, and the water inlet of the spiral tube is located within the coverage area of ​​all the hot air outlets.

7. A foam elimination device for waterfalls according to claim 6, characterized in that, The hot air blower and hot air pipe are fixedly supported on the side wall of the water inlet unit.

8. A foam elimination device for waterfalls according to any one of claims 1 to 5, characterized in that, The diameter of the inlet hole of the outlet pipe is 5-20mm.

9. A foam elimination device for waterfalls according to any one of claims 1 to 5, characterized in that, The water inlet holes are arranged in at least one row along the extension direction of the water outlet pipe.

10. A foam elimination device for waterfalls according to any one of claims 1 to 5, characterized in that, The turbulence reducer is a Pall ring, a Raschig ring, or a multifaceted hollow sphere.

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