CN221544401U - Nuclear power station water recovery device - Google Patents
Nuclear power station water recovery device Download PDFInfo
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- CN221544401U CN221544401U CN202323493647.6U CN202323493647U CN221544401U CN 221544401 U CN221544401 U CN 221544401U CN 202323493647 U CN202323493647 U CN 202323493647U CN 221544401 U CN221544401 U CN 221544401U
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- water
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- filter
- nuclear power
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 239000002351 wastewater Substances 0.000 claims abstract description 33
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 30
- 150000002500 ions Chemical class 0.000 claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 239000003651 drinking water Substances 0.000 description 6
- 235000020188 drinking water Nutrition 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to a water recovery device of a nuclear power station, which comprises: a hydrophobic receiving tank; a filter connected to the hydrophobic collection tank for filtering the collected water for micro impurities; an ion exchanger connected with the filter and used for removing impurity ions from the collected water; and the isolation valve is connected with the ion exchanger and the condenser and used for transmitting the treated collected water to the condenser. The utility model can reduce the water consumption in the whole system of the nuclear power station, reduce the workload of the related wastewater recovery system by adding the corresponding water treatment device, improve the recovery rate of wastewater and reduce the total amount of wastewater discharged to the sea.
Description
Technical Field
The utility model relates to the field of wastewater recovery treatment, in particular to a water recovery device of a nuclear power station.
Background
Drainage of an ASG (auxiliary water supply system) pneumatic pump in the existing nuclear power plant is firstly discharged into a water collecting tank of leaked water, the discharged water is conveyed to an SEK (non-oily wastewater cooling tank) through a GB (industrial water pipe) gallery by the pump and finally discharged to an SEL (conventional island waste liquid discharge system), and the SEL is discharged to the sea. A large amount of wastewater is produced annually, about 27739m 3, and the amount of wastewater produced by a nuclear power plant is excessive and a system device for treating the wastewater is lacking at the present stage.
Disclosure of utility model
The utility model aims to solve the technical problem of how to recover the hydrophobic water after further treatment and provides a water recovery device of a nuclear power station.
The technical scheme adopted for solving the technical problems is as follows: a water recovery device for a nuclear power plant, comprising:
A hydrophobic receiving tank;
A filter connected to the drain collection tank for filtering minute impurities from the collected water;
an ion exchanger connected to the filter for removing impurity ions from the collected water;
And the isolation valve is connected with the ion exchanger and the condenser and is used for transmitting the treated collected water to the condenser.
Preferably, the filter includes a main filter, and a sub-filter juxtaposed with the main filter.
Preferably, the method further comprises:
one end of the drainage conveying pump is connected with the drainage receiving tank, and the other end of the drainage conveying pump is connected with the quick-closing valve;
One end is connected with the drainage transfer pump, and the other end is connected with the filter for close when the low liquid level of drainage receiving tank reports to the police, prevent the drainage transfer pump water level is too low closes the valve soon.
Preferably, the method further comprises:
The sampling valve is connected with the filter and the isolation valve and is used for sampling and detecting the treated collected water;
And the bypass valve is connected with the filter and the sampling valve in parallel and is used for closing the ion exchanger when the treated water in the sampling valve is detected to be qualified.
Preferably, the hydrophobic collection tank and the filter further comprise between them: the device comprises a first manual isolation valve and a second manual isolation valve, wherein the first manual isolation valve is arranged in parallel and used for starting conversion treatment of collected water, and the second manual isolation valve is used for starting direct collection of the collected water.
Preferably, the method further comprises:
And the drain valve is connected with the ion exchanger and is connected with the isolation valve in parallel and used for draining water to flush a pipeline.
Preferably, the method further comprises:
And the exhaust valve is connected with the ion exchanger and is connected with the isolation valve in parallel and used for filling water and exhausting the pipeline.
Preferably, the method further comprises:
The heating system is connected with the condenser and used for heating condensed water in the condenser into steam water and adding drain water into the drain receiving tank through the first steam-water separator and the third steam-water separator.
Preferably, the method further comprises:
The condenser is connected, the condensed water in the condenser is supplemented, and the condensed water is sent to the first auxiliary water supply pump, the second auxiliary water supply pump, the first steam-turbine driver and the second steam-turbine driver, is processed by the second steam-water separator and the fourth steam-water separator and flows into the auxiliary water supply system water storage tank in the drainage receiving tank.
Preferably, the method further comprises:
And the wastewater receiving pit is connected with the hydrophobic receiving tank in parallel and is used for receiving wastewater when the hydrophobic receiving tank is not available.
The implementation of the utility model has the following beneficial effects: provided is a nuclear power plant water recovery device, including: a hydrophobic receiving tank; a filter connected to the hydrophobic collection tank for filtering the collected water for micro impurities; an ion exchanger connected with the filter and used for removing impurity ions from the collected water; and the isolation valve is connected with the ion exchanger and the condenser and used for transmitting the treated collected water to the condenser. The utility model can reduce the water consumption in the whole system of the nuclear power station, reduce the workload of the related wastewater recovery system by adding the corresponding water treatment device, improve the recovery rate of wastewater and reduce the total amount of wastewater discharged to the sea.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of a water recovery device of a nuclear power plant according to the present utility model;
FIG. 2 is a schematic diagram of the structure in some embodiments of the utility model;
FIG. 3 is a schematic diagram of the structure in some embodiments of the utility model;
fig. 4 is a schematic diagram of the structure in some embodiments of the utility model.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, a schematic structural diagram of some embodiments of the present utility model includes:
A hydrophobic receiving tank 1;
a filter 2 connected to the drain tank 1 for filtering minute impurities from the collected water;
an ion exchanger 3 connected to the filter 2 for removing impurity ions from the collected water;
the ion exchanger 3 and the condenser 5 are connected, and the isolation valve 4 is used for transmitting the treated collected water to the condenser 5.
In an alternative embodiment, as shown in fig. 2, the apparatus further comprises:
A drain transfer pump 6 having one end connected to the drain receiving tank 1 and the other end connected to the quick-closing valve 12;
One end is connected with the drainage transfer pump 6, and the other end is connected with the filter 2, and is used for closing when the low liquid level of the drainage receiving tank 1 is alarmed, and a quick-closing valve 12 for preventing the water level of the drainage transfer pump 6 from being too low; the quick-closing valve 12 is opened when it is detected that the liquid level of the drain receiving tank 1 is higher than a preset value, and the drain transfer pump 6 is automatically started when the quick-closing valve 12 is opened, so that the drain in the drain receiving tank 1 enters the filter 2 through the quick-closing valve 12.
In an alternative embodiment, as shown in fig. 2, a first valve 7 is further included between the hydrophobic transfer pump 6 and the quick-closing valve 12 for controlling whether the hydrophobic transfer pump 6 is turned on.
In an alternative embodiment, as shown in fig. 2, the hydrophobic collection tank 1 and the filter 2 further comprise: a first manual isolation valve 11 for starting the conversion treatment of the collected water and a second manual isolation valve 8 for starting the direct collection of the collected water are arranged in parallel. The first manual isolation valve 11 is disposed between the first valve 7 and the quick-closing valve 12.
After the second manual isolation valve 8 is opened, the drain water directly enters a non-oily wastewater cooling tank 9 (SEK) through a drain transfer pump 6, and then enters a conventional island waste liquid discharge system 10 (SEL) for treatment and is discharged into the sea.
In an alternative embodiment, as shown in fig. 2, the filter 2 comprises a main filter 14 and a secondary filter 17 juxtaposed to the main filter 14, the main filter 14 and secondary filter 17 being provided one after the other, when one of the filters needs to be replaced, the other filter is activated so that the filter 2 is continuously in operation. A second valve 13 and a third valve 15 are respectively arranged at two ends of the main filter 14 and are used for starting and stopping the main filter 14; a fourth valve 16 and a fifth valve 18 are respectively arranged at two ends of the auxiliary filter 17 and are used for starting and stopping the auxiliary filter 17.
In an alternative embodiment, as shown in fig. 2, the apparatus further comprises:
a sampling valve 24 connected to the filter 2 and the isolation valve 4 for sampling and detecting the collected water after treatment;
the filter 2 and the sampling valve 24 are connected in parallel with the ion exchanger 3, and the bypass valve 21 of the ion exchanger 3 is closed when the treated water in the sampling valve 4 is detected to be qualified. A sixth valve 19 and a seventh valve 20 are respectively arranged at two ends of the ion exchanger 3 and are used for starting and stopping the ion exchanger 3; when the treated water in the sampling valve 4 is detected to be unacceptable, the bypass valve 21 is closed, and the sixth valve 19 and the seventh valve 20 are simultaneously opened, so that the drain water passes through the ion exchanger 3 to remove impurity ions.
In an alternative embodiment, as shown in fig. 2, the apparatus further comprises:
An ion exchanger 3 is connected, and a drain valve 22 for draining water and flushing the pipeline is connected in parallel with the isolation valve 4.
An ion exchanger 3 is connected and connected in parallel with the isolation valve 4, and an exhaust valve 23 for filling water into and exhausting the pipeline is provided.
In an alternative embodiment, as shown in fig. 2, the apparatus further comprises:
The condenser 5 is connected, the condensed water in the condenser 5 is supplemented, and the condensed water is sent to the first auxiliary water supply pump 27, the second auxiliary water supply pump 28, the first steam turbine driver 31 and the second steam turbine driver 36, is processed by the second steam-water separator 33 and the fourth steam-water separator 38, and flows into the auxiliary water supply system water storage tank 26 in the drainage receiving tank 1.
The condenser 5 is connected for heating the condensed water in the condenser 5 to steam water and adding the steam water to the heating system 25 in the drain receiving tank 1 through the first steam-water separator 29 and the third steam-water separator 34.
In an alternative embodiment, as shown in fig. 2, after the condensed water in the condenser 5 is heated to steam water through the condenser 5 and then passes through the first steam-water separator 29, the drain water continuously enters the first steam trap 32 through a heating pipe, and after the drain water is treated by the second steam-water separator 33, the drain water is supplemented into the drain receiving tank 1.
In an alternative embodiment, as shown in fig. 2, after the condensed water in the condenser 5 is heated to steam water through the condenser 5 and then passes through the third steam-water separator 34, the steam water continuously passes through a heating pipe and enters the second steam trap 37, and after the steam water is processed through the fourth steam-water separator 38, the steam water is supplemented into the steam water receiving tank 1.
In an alternative embodiment, as shown in fig. 2, when the first auxiliary water feed pump 27 needs to operate, a first steam inlet valve 30 between the first steam-water separator 29 and the first steam-wheel driver 31 is opened, so that steam separated in the first steam-water separator 29 enters the first steam-wheel driver 31, and the first steam-wheel driver 31 operates, bearing lubrication water which belongs to the operation and condensed water after the steam-wheel driving steam turbine enter the second steam-water separator 33 during standby, and drain water enters the drain receiving tank 1.
In an alternative embodiment, as shown in fig. 2, when the second auxiliary water supply pump 28 needs to operate, a second steam inlet valve 35 between the third steam-water separator 34 and the second steam turbine driver 36 is opened, so that steam separated in the third steam-water separator 34 enters the second steam turbine driver 36, and the second steam turbine driver 36 operates, bearing lubrication water belonging to the operation and condensed water after the steam driving steam turbine enter the fourth steam-water separator 38 during standby, and drain water enters the drain receiving tank 1.
In an alternative embodiment, as shown in fig. 2, the system further comprises a first drinking water system 39 connected with the second steam-water separator 33 in parallel and a second drinking water system 40 connected with the fourth steam-water separator 38 in parallel, wherein the high temperature in the first drinking water system 39 and the second drinking water system 40 are cooled down to the hydrophobic receiving tank 1 in a hydrophobic manner respectively.
In an alternative embodiment, as shown in fig. 2, the apparatus further comprises:
A waste water receiving pit 43 connected in parallel with the waste water receiving tank 1 for receiving waste water when the waste water receiving tank 1 is not available. The drain water in the second steam-water separator 33, the first drinking water system 39, the fourth steam-water separator 38 and the second drinking water system 40 flows to the drain receiving tank 1 by opening the eighth valve 41 and flows to the waste water receiving pit 43 by opening the ninth valve 42, respectively.
After the wastewater which cannot be treated is transferred to the wastewater receiving pit 43, the wastewater flows to the drain pump 44, and the eleventh valve 46 is opened to flow the wastewater to the wastewater collection tank 47 (TEU) and to the nuclear island wastewater discharge system 48 (TER), so that the treated wastewater flows to the sea.
In an alternative embodiment, as shown in fig. 2, a tenth valve 45 is further included between the first valve 7 and the eleventh valve 46, so that when the tenth valve 45 is opened, the wastewater flows to the first valve 7, and after passing through the second manual isolation valve 8, the wastewater is directly introduced into the non-oily wastewater cooling tank 9 (SEK) through the hydrophobic transfer pump 6, and then introduced into the conventional island wastewater discharge system 10 (SEL) for treatment, and then discharged into the sea.
In an alternative embodiment, the first hydrophobic collection tank discharges 68 tanks and the second hydrophobic collection tank discharges 76 tanks from 2022, 10, 1, 0 to 23, 10, 31. The first hydrophobic collection tank emission trend is shown in fig. 3 at 10 months 2022.
Hydrophobic collection tank one tank 15m 3, the first hydrophobic collection tank is filled with one tank about 10 hours, the first hydrophobic collection tank is filled with water about 1.5m 3 every 1 hour, the second hydrophobic collection tank is filled with water about 9 hours, and the second hydrophobic collection tank is filled with water about 1.666m 3 every 1 hour. A total of 27739m 3 of SEL wastewater was discharged from the 1/2 hydrophobic collection tank throughout the year.
The drain collection tank water is primarily used to warm the ASG turbo drive water to the two-circuit steam and to assist the water supply system reservoir 26 in supplying water to the ASG pump. As shown in fig. 4, the drain of the drain collection tank may be changed from the drain SEK to the condenser 5 (CEX) to recover water.
One tank SEL discharges about 400 cubic meters, and a 1/2 drain collection tank drains 5 tanks SEL for one month and about 69 tanks a year. Reducing the amount of operation and chemical effort (the cost of labor cannot be estimated specifically).
The time interval from the start of the half month SEL acquisition cycle to the discharge is as follows in table 1:
Table 1: during the SEL driving cycle
The average cycle time of one tank SEL was 12 hours, the SEL discharge flow was about 120m 3/h, and the one tank discharge was about 3.3 hours. One tank SEL was cycled to discharge for about 15 hours, 69 for 1035 hours. SEL pump motor power 30kw,65 tank discharge electricity 31050KWH. The SEK011/012PO power is 30KWH, and the flow rate is 150m 3/h,27739m3, and water is transmitted from the SEK to the SEL power utilization 5547KWH. Power is saved by 36597kwh each year, the life of the sel pump is prolonged by 1035 hours, and the life of the SEK pump is prolonged by 184 hours.
It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; 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 water recovery device for a nuclear power plant, comprising:
A hydrophobic receiving tank;
a filter connected to the hydrophobic receiving tank for filtering the collected water for fine impurities;
an ion exchanger connected to the filter for removing impurity ions from the collected water;
And the isolation valve is connected with the ion exchanger and the condenser and is used for transmitting the treated collected water to the condenser.
2. The nuclear power plant water recovery apparatus of claim 1 wherein the filter includes a primary filter and a secondary filter juxtaposed with the primary filter.
3. The nuclear power plant water recovery device of claim 1, further comprising:
one end of the drainage conveying pump is connected with the drainage receiving tank, and the other end of the drainage conveying pump is connected with the quick-closing valve;
One end is connected with the drainage transfer pump, and the other end is connected with the filter for close when the low liquid level of drainage receiving tank reports to the police, prevent the drainage transfer pump water level is too low closes the valve soon.
4. The nuclear power plant water recovery device of claim 1, further comprising:
The sampling valve is connected with the filter and the isolation valve and is used for sampling and detecting the treated collected water;
And the bypass valve is connected with the filter and the sampling valve in parallel and is used for closing the ion exchanger when the treated water in the sampling valve is detected to be qualified.
5. The nuclear power plant water recovery device of claim 1, further comprising between the hydrophobic receiving tank and the filter: the device comprises a first manual isolation valve and a second manual isolation valve, wherein the first manual isolation valve is arranged in parallel and used for starting conversion treatment of collected water, and the second manual isolation valve is used for starting direct collection of the collected water.
6. The nuclear power plant water recovery device of claim 1, further comprising:
And the drain valve is connected with the ion exchanger and is connected with the isolation valve in parallel and used for draining water to flush a pipeline.
7. The nuclear power plant water recovery device of claim 1, further comprising:
And the exhaust valve is connected with the ion exchanger and is connected with the isolation valve in parallel and used for filling water and exhausting the pipeline.
8. The nuclear power plant water recovery device of claim 1, further comprising:
The heating system is connected with the condenser and used for heating condensed water in the condenser into steam water and adding drain water into the drain receiving tank through the first steam-water separator and the third steam-water separator.
9. The nuclear power plant water recovery device of claim 1, further comprising:
The condenser is connected, the condensed water in the condenser is supplemented, and the condensed water is sent to the first auxiliary water supply pump, the second auxiliary water supply pump, the first steam-turbine driver and the second steam-turbine driver, is processed by the second steam-water separator and the fourth steam-water separator and flows into the auxiliary water supply system water storage tank in the drainage receiving tank.
10. The nuclear power plant water recovery device of claim 1, further comprising:
And the wastewater receiving pit is connected with the hydrophobic receiving tank in parallel and is used for receiving wastewater when the hydrophobic receiving tank is not available.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323493647.6U CN221544401U (en) | 2023-12-20 | 2023-12-20 | Nuclear power station water recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323493647.6U CN221544401U (en) | 2023-12-20 | 2023-12-20 | Nuclear power station water recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221544401U true CN221544401U (en) | 2024-08-16 |
Family
ID=92225726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323493647.6U Active CN221544401U (en) | 2023-12-20 | 2023-12-20 | Nuclear power station water recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221544401U (en) |
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2023
- 2023-12-20 CN CN202323493647.6U patent/CN221544401U/en active Active
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