CN217895182U - Nuclear power warm-water drainage cooling and seawater desalination device - Google Patents
Nuclear power warm-water drainage cooling and seawater desalination device Download PDFInfo
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- CN217895182U CN217895182U CN202222240972.0U CN202222240972U CN217895182U CN 217895182 U CN217895182 U CN 217895182U CN 202222240972 U CN202222240972 U CN 202222240972U CN 217895182 U CN217895182 U CN 217895182U
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Abstract
The utility model discloses a nuclear power temperature drainage cooling and sea water desalination device, it includes at least one membrane distiller and at least one steam generator, this at least one membrane distiller includes the cavity, be equipped with the osmotic membrane in the cavity, the osmotic membrane defines the cavity and is used for supplying the first space that warm exhaust water flows and is used for supplying the second space that the medium flows, this at least one steam generator includes the casing, be equipped with a plurality of pipelines that are used for power supply station extraction steam to flow in the casing, the space that is located the pipeline periphery in the casing forms the third space that supplies the medium to flow, this second space and third space are through first pipeline and second pipe connection and intercommunication, be equipped with the driving pump on the first pipeline. The nuclear power warm-water drainage cooling and seawater desalination device adopts a membrane distillation technology, produces fresh water while cooling warm-water drainage, fully utilizes waste heat of the warm-water drainage, and reduces the influence of warm-water drainage discharge of power enterprises on surrounding sea areas.
Description
Technical Field
The utility model relates to a nuclear power technical field especially relates to a nuclear power temperature drainage cooling and sea water desalination device.
Background
Coastal power enterprises need seawater as cooling water to cool the units, and the seawater is discharged after being heated to 6-11 ℃, which is generally called warm drainage. The warm drainage takes away a large part of heat energy generated by the power station, and the part of heat energy is difficult to utilize and treat due to low temperature. The warm drainage changes the environmental temperature of a water area, so that the biomass of the water body is reduced, the variety of species is reduced, the ecological environment is seriously harmed, and the survival and the development of human beings are threatened. The discharge of a large amount of warm discharge water from a power station brings serious thermal shock to offshore sea areas, which becomes a bottleneck restricting the development of the industry and a common problem of impacting the marine environment.
The heat of warm drainage water is large, the temperature rise is low, the warm drainage water is difficult to utilize, and the defects of low thermal efficiency, high cost and the like generally exist in the current mainstream warm drainage water cooling technology. For the current seawater desalination industry, the high desalination cost is regarded as a main obstacle that the large-scale popularization and application of seawater desalination are difficult.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a nuclear power temperature drainage cooling and sea water desalination device.
The utility model provides a technical scheme that its technical problem adopted is: constructing a nuclear power warm-water drainage cooling and seawater desalination device, which comprises at least one membrane distiller and at least one steam generator;
the at least one membrane distiller comprises a cavity, wherein an osmotic membrane is arranged in the cavity, and the osmotic membrane defines a first space for flowing warm drainage water and a second space for flowing media in the cavity;
the at least one steam generator comprises a shell, a plurality of pipelines for steam extraction and flow of a power station are arranged in the shell, and a third space for medium flow is formed in a space positioned on the periphery of the pipelines in the shell;
the second space and the third space are connected and communicated through a first pipeline and a second pipeline, and a driving pump is arranged on the first pipeline.
In some embodiments, a first control valve is disposed on the first line.
In some embodiments, a second control valve is provided on the second line.
In some embodiments, a first filter is disposed on the first line.
In some embodiments, a second filter is disposed on the second line.
In some embodiments, a first temperature sensor is disposed on the first line.
In some embodiments, a second temperature sensor is disposed on the second line.
In some embodiments, the nuclear power warm water discharge, cooling and seawater desalination device is further provided with a steam discharge pipeline connected with the third space.
In some embodiments, the nuclear power warm water discharge, temperature reduction and seawater desalination device is further provided with a water inlet pipeline and a water outlet pipeline which are connected with the first space, and the water inlet pipeline is provided with a third temperature sensor and/or the water outlet pipeline is provided with a fourth temperature sensor.
In some embodiments, the medium comprises a lithium bromide solution.
Implement the utility model discloses following beneficial effect has: this nuclear power warm drainage cooling and sea water desalination device includes at least one membrane distiller and at least one steam generator, this at least one membrane distiller includes the cavity, be equipped with the osmotic membrane in the cavity, the osmotic membrane defines out the cavity and is used for supplying the first space that warm exhaust water flows and is used for supplying the second space that the medium flows, this at least one steam generator includes the casing, be equipped with in the casing and be used for a plurality of pipelines that the power supply station took out the steam and flows, the space that is located the pipeline periphery in the casing forms the third space that supplies the medium to flow, this second space and third space are through first pipeline and second pipeline connection and intercommunication, be equipped with the driving pump on the first pipeline. The nuclear power warm water discharge cooling and seawater desalting device adopts a membrane distillation technology, produces fresh water while cooling warm water discharge, fully utilizes waste heat of the warm water discharge, and reduces the influence of warm water discharge of power enterprises on surrounding sea areas.
Drawings
In order to explain the technical solution of the present invention more clearly, the present invention will be further described with reference to the accompanying drawings and examples, it should be understood that the following drawings only show some examples of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of a nuclear power warm-water discharge cooling and seawater desalination device in some embodiments of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", and the like are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.
It should also be noted that, unless expressly specified or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and encompass, for example, fixed connections as well as removable connections or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Please refer to fig. 1, which is a nuclear power warm-water-discharging temperature-reducing and seawater desalination device in some embodiments of the present invention, including at least one membrane distiller 1 and at least one steam generator 2, where the at least one membrane distiller 1 includes a cavity 11, an osmotic membrane 12 is disposed in the cavity 11, the osmotic membrane 12 defines the cavity 11 with a first space 111 for warm-water-discharging flowing and a second space 112 for medium flowing, the at least one steam generator 2 includes a casing 21, a plurality of pipes 22 for power station steam-extraction flowing are disposed in the casing 21, a space around the pipes in the casing 21 forms a third space 211 for medium flowing, the second space 112 and the third space 211 are connected and communicated through a first pipe 3 and a second pipe 4, and a driving pump 31 is disposed on the first pipe 3.
The warm water is direct-flow cooling water which is discharged to the environmental water body through a steam cooler of a power plant and has water temperature higher than the environmental water temperature, and the warm water can cause the water body temperature of a local water area to be sharply increased, the chemical reaction rate of the water body temperature is increased, the reproduction rate of aquatic organisms is reduced, dissolved oxygen in water is reduced, the density and viscosity of the produced water are reduced, the settling effect of particles can be accelerated, the settling rate of suspended matters in the water and the capability of carrying silt are influenced, and the water quality of the natural water body is changed. Meanwhile, warm drainage also affects benthonic animals, algae, fishes, corals and even shoal organisms, changes the survival, growth and reproduction habits of the benthonic animals, the algae, the fishes and the corals and even causes the death of the organisms.
The membrane distiller is a device adopting a membrane separation process with a permeable membrane and steam pressure difference on two sides of the membrane as mass transfer driving force, and can be used for distilling and desalting water and removing volatile substances from a water solution. The permeable membrane may preferably be a hydrophobic microporous membrane, which has hydrophobicity and can separate aqueous solutions of different temperatures, and the aqueous solutions on both sides cannot pass through the membrane pores into the other side, but since the water vapor pressure at the interface between the aqueous solution on the warm side and the membrane is higher than that on the cold side, the water vapor can pass through the membrane pores and enter the cold side from the warm side to be condensed.
Further, the permeable membrane 12 in the membrane distiller 1 divides the chamber 11 into a first space 111 and a second space 112, and due to the characteristics of the permeable membrane 12, water vapor can pass through the permeable membrane 12, and the warm drain water is partially evaporated and absorbed by the medium through the permeable membrane 12 under the action of osmotic pressure difference and water vapor partial pressure, and the temperature of the warm drain water is lowered due to the endothermic heat of evaporation in the process.
Preferably, the medium in the membrane distiller 1 absorbs water vapor and flows into the steam generator 2 through the second pipeline 4, the steam generator 2 may be provided with a plurality of pipes 22, which may be heat exchange pipes, and a power station steam extraction flows in the heat exchange pipes, the power station steam extraction heats the medium absorbing water vapor to raise the temperature of the medium, so that the water in the medium is evaporated to generate high-temperature steam, and the rest of the medium flows into the membrane distiller 1 through the first pipeline 3.
Further, the nuclear power warm water discharge cooling and seawater desalination device can further comprise a condenser in some embodiments, a plurality of water pipes through which cooling water flows are arranged in the condenser, the condenser is connected with the steam generator 2, and the steam generator 2 generates high-temperature steam to exchange heat with the cooling water-phase riser, so that the high-temperature steam is condensed into fresh water.
Wherein the driving pump 31 on the first pipeline 3 is used for driving the medium to flow into the membrane distiller 1 through the first pipeline 3, in some embodiments, the driving pump 31 is further provided with a driving motor 311, and the driving motor 311 is used for providing power for the driving pump 31.
It will be appreciated that the membrane still 1, the steam generator 2, the first line 3 and the second line 4 together comprise a first stage unit. Further, the nuclear power warm-water discharge cooling and seawater desalination device further comprises a second-level device in some embodiments, and the structure of the second-level device is the same as that of the first-level device. Preferably, the nuclear power warm water drainage, temperature reduction and seawater desalination plant further comprises a water drainage channel 5 connecting the first-level device and the second-level device in some embodiments. The drain pipe is connected to the first space 111, and is used for conveying the warm drain water cooled by the first-level device to the second-level device. In other embodiments, the drainage channel 5 may also be used to directly discharge the warm drainage water after the temperature reduction of the first stage device to the outside of the nuclear power warm drainage temperature reduction and seawater desalination device.
In other embodiments, the nuclear power warm-water discharge cooling and seawater desalination device can increase the number of stages of cooling equipment according to the requirement to achieve a better cooling effect, and is not limited specifically here.
In some embodiments, the medium comprises a lithium bromide solution that is odorless, non-toxic, environmentally friendly, stable, does not readily deteriorate or decompose in the atmosphere, does not substantially corrode metals after addition of a corrosion inhibitor, and has the ability to absorb water vapor at temperatures lower than that of the aqueous lithium bromide solution. In other embodiments, the medium may also be potassium sulfate solution, sodium hydroxide solution or sulfuric acid solution, and is not limited herein.
In some embodiments, a first control valve 32 is provided on the first line 3. It will be appreciated that the first control valve 32 is used to control the pressure and flow on the first line 3, and preferably the first control valve 32 may be a ball valve.
In some embodiments, a second control valve 41 is provided on the second line 4. It will be appreciated that the second control valve 41 is used to control the pressure and flow on the second line 4, and preferably the second control valve 41 may be a ball valve.
In some embodiments, a first filter 33 is provided on the first line 3. It will be appreciated that the first filter 33 is adapted to intercept various contaminants such as abrasive particles generated by the hydraulic components of the first line 3 during operation. Preferably, the first filter 33 may be a double-cylinder filter, and in other embodiments, the first filter 33 may also be a single-cylinder filter or other types of filters, which are not limited herein.
In some embodiments, a second filter 42 is provided on the second line 4. It will be appreciated that the second filter 42 serves to intercept various contaminants such as abrasive particles generated by the hydraulic components of the second line 4 during operation. Preferably, the second filter 42 may be a double-cartridge filter, and in other embodiments, the second filter 42 may also be a single-cartridge filter or other types of filters, which are not limited herein.
In some embodiments, a first temperature sensor 34 is provided on the first pipeline 3. It will be appreciated that the first temperature sensor 34 may measure the temperature on the first line 3, from which the operator may adjust the pressure and flow on the first line 3 via the first control valve 32.
In some embodiments, a second temperature sensor 43 is provided on the second line 4. It will be appreciated that the second temperature sensor 43 can measure the temperature on the second line 4, from which the operator can adjust the pressure and flow on the second line 4 via the second control valve 41.
In some embodiments, the nuclear power warm water discharge, temperature reduction and seawater desalination plant is further provided with a steam discharge pipeline 6 connected with the third space 211. The exhaust line 6 is used for discharging high-temperature steam. In other embodiments, a control valve and a temperature sensor may be provided on the exhaust line 6.
In some embodiments, the nuclear power warm water discharge, temperature reduction and seawater desalination apparatus is further provided with a water inlet pipeline 7 and a water outlet pipeline 8 connected to the first space 111, wherein the water inlet pipeline 7 is provided with the third temperature sensor 71 and/or the water outlet pipeline 8 is provided with the fourth temperature sensor 81. It will be appreciated that the third temperature sensor 71 may measure the temperature on the water inlet line 7 and the fourth temperature sensor 81 may measure the temperature on the water outlet line 8.
The nuclear power warm water discharge cooling and seawater desalination device can be used for establishing multistage distillation equipment, the membrane distillation technology is adopted, fresh water is produced while warm water is cooled, waste heat of warm water is fully utilized, the influence of warm water discharge of power enterprises on surrounding sea areas is reduced, and the nuclear power warm water discharge cooling and seawater desalination device has important significance for development of nuclear power plants. The nuclear power warm-water-discharging cooling and seawater desalting device achieves low energy consumption, utilizes the power generated by the power station and the warm-water-discharging energy as driving, uses the energy of the produced water vapor as a heat source, and is low in energy consumption cost. Fresh water is produced while warm drainage is carried out for cooling, multi-stage cooling is realized, warm drainage waste heat is fully utilized, and the resource utilization efficiency is high. And the extraction steam of the power station is reduced under the same heat supply scale, and the generated energy is improved.
The nuclear power warm water discharge cooling and seawater desalination device is high in resource utilization efficiency, can perform warm water discharge cooling, provides conditions for building a new unit for a nuclear power station, can produce fresh water by using waste heat and steam extraction of the nuclear power station, improves generated energy, and has great economic benefits. Meanwhile, the nuclear power warm water drainage and cooling and seawater desalination device carries out warm water drainage and cooling, conditions are provided for building a new unit of the nuclear power station, and the productivity of the new unit for building the nuclear power station is greatly improved.
It is understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A nuclear power warm-water drainage cooling and seawater desalination device is characterized by comprising at least one membrane distiller and at least one steam generator;
the at least one membrane distiller comprises a cavity, wherein a permeable membrane is arranged in the cavity, and the permeable membrane defines a first space for flowing of temperature supply drainage water and a second space for flowing of a medium in the cavity;
the at least one steam generator comprises a shell, a plurality of pipelines for steam extraction flow of the power station are arranged in the shell, and a third space for medium flow is formed in the space, positioned on the periphery of the pipelines, in the shell;
the second space and the third space are connected and communicated through a first pipeline and a second pipeline, and a driving pump is arranged on the first pipeline.
2. The nuclear power warm-water discharge, cooling and seawater desalination plant of claim 1, wherein the first pipeline is provided with a first control valve.
3. The nuclear power warm-water discharge cooling and seawater desalination plant as claimed in claim 1, wherein a second control valve is provided on the second pipeline.
4. The nuclear power warm-water discharge cooling and seawater desalination plant of claim 1, wherein the first pipeline is provided with a first filter.
5. The nuclear power warm-water discharge cooling and seawater desalination plant as claimed in claim 1, wherein a second filter is arranged on the second pipeline.
6. The nuclear power warm water discharge, cooling and seawater desalination plant of claim 1, wherein the first pipeline is provided with a first temperature sensor.
7. The nuclear power warm-water discharge cooling and seawater desalination plant as claimed in claim 1, wherein a second temperature sensor is provided on the second pipeline.
8. The nuclear power warm-water discharge cooling and seawater desalination plant as claimed in claim 1, wherein the nuclear power warm-water discharge cooling and seawater desalination plant is further provided with an exhaust pipeline connected with the third space.
9. The nuclear power warm-water discharge cooling and seawater desalination plant as claimed in claim 1, wherein the nuclear power warm-water discharge cooling and seawater desalination plant is further provided with a water inlet pipeline and a water outlet pipeline connected with the first space, and a third temperature sensor is arranged on the water inlet pipeline and/or a fourth temperature sensor is arranged on the water outlet pipeline.
10. The nuclear power warm water discharge, cooling and seawater desalination plant of any one of claims 1 to 9, wherein the medium comprises a lithium bromide solution.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222240972.0U CN217895182U (en) | 2022-08-24 | 2022-08-24 | Nuclear power warm-water drainage cooling and seawater desalination device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222240972.0U CN217895182U (en) | 2022-08-24 | 2022-08-24 | Nuclear power warm-water drainage cooling and seawater desalination device |
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| CN217895182U true CN217895182U (en) | 2022-11-25 |
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| CN202222240972.0U Active CN217895182U (en) | 2022-08-24 | 2022-08-24 | Nuclear power warm-water drainage cooling and seawater desalination device |
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