CN215711898U - Pile pipe type sea surface foam defoaming device - Google Patents
Pile pipe type sea surface foam defoaming device Download PDFInfo
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- CN215711898U CN215711898U CN202121744753.5U CN202121744753U CN215711898U CN 215711898 U CN215711898 U CN 215711898U CN 202121744753 U CN202121744753 U CN 202121744753U CN 215711898 U CN215711898 U CN 215711898U
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Abstract
The utility model discloses a pile pipe type sea surface foam defoaming device, which is used for defoaming sea area foam around a surrounded pressurized water reactor drainage outlet and comprises a steel pipe pile and a pile upper nozzle; the steel pipe pile is vertically arranged in the sea area at the periphery of a pressurized water reactor water outlet, the bottom of the steel pipe pile is inserted into the sea bottom, the top of the steel pipe pile is higher than the sea level, a vertical extension section is arranged at the top of the steel pipe pile, an upper pile spray head is connected to the extension section, a submersible pump is arranged at the bottom of the steel pipe pile, a water conveying pipeline is arranged in the steel pipe pile, and the submersible pump is connected with the upper pile spray head through the water conveying pipeline; and the plurality of steel pipe piles are arranged in an array in a surrounded defoaming area of the sea area around the pressurized water reactor drainage outlet. The utility model can intensively defoam the foams gathered by enclosure.
Description
Technical Field
The utility model relates to a pile pipe type sea surface foam defoaming device used in the field of nuclear power station cooling water treatment.
Background
The existing nuclear power plant in China mainly adopts a pressurized water reactor, the pressurized water reactor is provided with three loops, a first loop is used for cooling a reactor core, a second loop is used for cooling the first loop, a third loop is used for cooling the second loop, and only the third loop can use seawater. The method mainly considers the requirements of desalting, deoxidizing and the like on cooling water, and avoids the problems of corrosion and the like on a loop. The purpose of building a nuclear power plant at sea is to be able to use the seawater directly for cooling. The number of different nuclear power plant circuits may vary, but for all nuclear power plants only the outermost circuit may be supplied with seawater.
The use of seawater cooling can be cost effective and can cause a problem in that large white bubbles can accumulate near the cooling water discharge. Foaming is caused because nuclear power plants often kill marine organisms by adding chlorine (sodium hypochlorite) to the circulating water treatment system in order to eliminate adhesion of aquatic organisms to the circulating water taking (discharging) structures and blockage of pipelines. The marine organism residues, sodium hypochlorite and other substances increase the viscosity of water, water mist can be splashed when water flow falls down in a sucking well, violent water jump entrainment is also carried out simultaneously, a large amount of bubbles are formed, the bubbles continuously rise to the water surface and are gathered to form flaky foam, and the foam is not easy to collapse.
Although the open cooling system is characterized in that the cooling water (seawater) is physically separated from the cooled medium, the inlet water and the discharge water are seawater, the main chemical components of the seawater are not changed, the temperature is increased, and the discharged cooling water and the generated foam are harmless and do not pollute the environment. However, for the discharge outlet near the scenic spot or the mariculture area, the large pieces of foam will seriously affect the appearance and visual beauty, even cause complaints and cause bad social effects. In addition, the national standard GB3097-1997 issued in 1997 has definite regulations on the first, second, third and fourth types of seawater floating substances, namely that oil films, floating foams and other floating substances cannot be generated (or are not obvious) on the sea surface, and strict regulation requirements on the foams of the sponge are also carried out, so that the foam can be eliminated slowly from any aspect. The aim of the skilled person is to intensively defoam the foam which has been trapped and pooled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a pile pipe type sea surface foam defoaming device which can intensively defoam foams gathered around.
One technical scheme for achieving the above purpose is as follows: a pile pipe type sea surface foam defoaming device is used for defoaming foam in the sea area around a surrounded pressurized water reactor water outlet and comprises a steel pipe pile and a spray head on the pile;
the steel pipe pile is vertically arranged in the sea area at the periphery of a pressurized water reactor water outlet, the bottom of the steel pipe pile is inserted into the sea bottom, the top of the steel pipe pile is higher than the sea level, a vertical extension section is arranged at the top of the steel pipe pile, an upper pile spray head is connected to the extension section, a submersible pump is arranged at the bottom of the steel pipe pile, a water conveying pipeline is arranged in the steel pipe pile, and the submersible pump is connected with the upper pile spray head through the water conveying pipeline;
and the plurality of steel pipe piles are arranged in an array in a surrounded defoaming area of the sea area around the pressurized water reactor drainage outlet.
Furthermore, the extension section is provided with a rotating mechanism which drives the spray head on the pile to rotate.
Still further, the spray head on the pile is a spray head group consisting of a top spray head facing the top and a side spray head facing the side.
Furthermore, the height of the top of the steel pipe pile is 2 meters higher than the historical high tide level of the peripheral sea area of the water outlet of the pressurized water reactor.
According to the pile-pipe type sea surface foam defoaming device, the steel pipe piles and the components of the spray heads on the piles are arranged in the array in the defoaming area surrounded by the sea area around the pressurized water reactor drainage outlet, the submersible pump at the bottom of the steel pipe piles is used for directly pumping water from seawater, and the spray heads on the piles are used for simulating a rainfall effect, so that the defoaming purpose is achieved. The utility model has the advantages of convenient arrangement, good defoaming effect and environmental friendliness.
Drawings
FIG. 1 is a schematic structural diagram of a pile-tube type sea surface foam defoaming device according to the present invention;
fig. 2 is a top view of an array arrangement of pile-tube type surface foam defoaming devices of the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
in the sea area around the pressurized water reactor outlet 4, a large amount of foam generated on the sea surface after the high-temperature cooling water is discharged from the sea has a characteristic that the foam is reduced or disappears in rainy days. This phenomenon has two causes: firstly, raindrops can contract surface tension, and the foamed surface contracts as much as possible under the action of the surface tension, so that foams are crushed quickly and accumulated foams cannot be seen; second, the bubbles are broken by the gravitational acceleration of the raindrops falling, so that the bubbles disappear. Inspired by this phenomenon, the main objective of the technicians is to pump seawater to a certain height and then spray the seawater onto the surface of the foam, so as to achieve the purpose of defoaming by simulating rainfall.
Referring to fig. 1 and 2, the pile-tube type sea surface foam defoaming device of the present invention includes a steel pipe pile 1 and a nozzle 2 on the pile.
The steel pipe pile 1 is vertically arranged in the peripheral sea area of the pressurized water reactor water outlet, the bottom of the steel pipe pile is inserted into the sea bottom, the depth of the steel pipe pile driven into the sea bottom is determined according to the geological condition of the sea area, the steel pipe pile is not inclined or displaced by wind waves under the condition of light load, the top of the steel pipe pile is higher than a sea level 5, and the height of the top of the steel pipe pile is 2 meters higher than the historical high tide level of the peripheral sea area of the pressurized water reactor water outlet. The top of the steel pipe pile is provided with a vertical extension section 11, and the extension section is connected with an upper pile nozzle 2. The spray head group on the pile is composed of a top spray head 21 facing the top and a side spray head 22 facing the side, and the extension section 11 is provided with a rotating mechanism which drives the spray head group to rotate around the center, so that 360-degree spraying is realized. The plurality of steel pipe piles are arranged in the surrounded defoaming area of the sea area around the pressurized water reactor drainage port in an array mode, and the full coverage of the spraying range 3 can be achieved. The bottom of steel-pipe pile 1 is equipped with the immersible pump, is equipped with conduit in the steel-pipe pile, and the immersible pump passes through conduit and is connected with the upper shower nozzle of stake, and the power of immersible pump is concentrated supply and control through the watertight cable by the bank electric cabinet.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. A pile pipe type sea surface foam defoaming device is used for defoaming foam in the sea area around a surrounded pressurized water reactor water outlet and is characterized by comprising a steel pipe pile and a pile upper nozzle;
the steel pipe pile is vertically arranged in the sea area at the periphery of a pressurized water reactor water outlet, the bottom of the steel pipe pile is inserted into the sea bottom, the top of the steel pipe pile is higher than the sea level, a vertical extension section is arranged at the top of the steel pipe pile, an upper pile spray head is connected to the extension section, a submersible pump is arranged at the bottom of the steel pipe pile, a water conveying pipeline is arranged in the steel pipe pile, and the submersible pump is connected with the upper pile spray head through the water conveying pipeline;
and the plurality of steel pipe piles are arranged in an array in a surrounded defoaming area of the sea area around the pressurized water reactor drainage outlet.
2. The pile-tube type sea surface foam removing device of claim 1, wherein the extension section is provided with a rotating mechanism for rotating the nozzle on the pile.
3. The pile-tube type sea surface foam defoaming apparatus of claim 2, wherein said pile nozzles are a nozzle group consisting of a top nozzle facing the top and a side nozzle facing the side.
4. The pile-pipe type sea surface foam defoaming device of claim 1, wherein the height of the top of the steel pipe pile is 2 meters higher than the historical high sea level of the peripheral sea area of the pressurized water reactor drainage outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121744753.5U CN215711898U (en) | 2021-07-29 | 2021-07-29 | Pile pipe type sea surface foam defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121744753.5U CN215711898U (en) | 2021-07-29 | 2021-07-29 | Pile pipe type sea surface foam defoaming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215711898U true CN215711898U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121744753.5U Active CN215711898U (en) | 2021-07-29 | 2021-07-29 | Pile pipe type sea surface foam defoaming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215711898U (en) |
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2021
- 2021-07-29 CN CN202121744753.5U patent/CN215711898U/en active Active
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