CN219341845U - Condensate fine treatment regeneration wastewater recycling system of thermal power plant - Google Patents
Condensate fine treatment regeneration wastewater recycling system of thermal power plant Download PDFInfo
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- CN219341845U CN219341845U CN202223290504.0U CN202223290504U CN219341845U CN 219341845 U CN219341845 U CN 219341845U CN 202223290504 U CN202223290504 U CN 202223290504U CN 219341845 U CN219341845 U CN 219341845U
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Abstract
The utility model discloses a condensate fine treatment regeneration wastewater recycling system of a thermal power plant, which comprises a separation tower (8), a female regeneration tower (9), a male regeneration tower (10), a regeneration device (11), an electromagnetic flowmeter (12), a conductivity meter (13), a resin catcher (14), a high-salt wastewater tank (15), a low-salt wastewater tank (16) and a separation tower drainage door (1), a female regeneration tower drainage door (2), a male regeneration tower drainage door (3), a regeneration device inlet door (4), a regeneration device outlet door (5), a high-salt wastewater tank inlet door (6) and a low-salt wastewater tank inlet door (7), and solves the problems that water and steam quality abnormality caused by incomplete regeneration cannot be found in time and a large amount of water resource waste is relieved when wastewater treatment is performed.
Description
Technical Field
The utility model relates to a recycling system for condensate fine treatment and regeneration wastewater of a thermal power plant, and belongs to the technical field of water treatment of power plants.
Background
The ion exchange resin in the high-speed mixed bed of the condensate polishing system of the thermal power plant needs to be regenerated by acid liquor and alkali liquor after being invalid, the regenerated resin can be continuously used, but the waste water generated during regeneration is directly discharged into a waste water pool. The wastewater produced by the steps of resin separation, resin scrubbing and resin conveying during resin regeneration has better water quality, and the water quality is close to desalted water; the waste water produced in the acid-base feeding and replacing steps has high salt content, and the waste water produced in all the steps is discharged into a waste water tank in general, so that the waste of water resources is caused.
The hydrogen conductivity reflects the total content of impurity anions in the water vapor system, can continuously monitor harmful impurities in the water vapor system, and is one of main means for ensuring the safe and economic operation of the generator set. The hydrogen conductivity measurement is to measure the conductivity of the water sample after passing through the hydrogen type cation exchange resin and then entering the on-line conductivity meter flow cell. The hydrogen ion exchange resin needs to be regenerated after it has failed.
At present, the regeneration mode of the cation exchange resin of the hydrogen conductivity meter of most of power plants in China is 5% hydrochloric acid solution static soaking. In this way, the resin cannot be 100% hydrogen form, but is a mixed form of other cations, due to the ion exchange equilibrium. Incomplete regeneration makes the measurement result of hydrogen conductivity lower, and the abnormal quality of water vapor cannot be found in time.
Disclosure of Invention
The utility model provides a condensate fine treatment regeneration wastewater recycling system of a thermal power plant.
Further, the resin regeneration device includes a separation tower, a female regeneration tower, a male regeneration tower, and a regeneration device.
Further, the separation tower, the female regeneration tower and the male regeneration tower are mutually connected through pipelines.
Further, the treated wastewater storage device comprises a high-salt wastewater tank and a low-salt wastewater tank.
Further, there are corresponding valves for controlling water flow between the various components, including a separator drain gate, a female regenerator drain gate, a male regenerator drain gate, a regenerator inlet gate, a regenerator outlet gate, a high salinity wastewater pond inlet gate, a low salinity wastewater pond inlet gate.
Further, an electromagnetic flowmeter, an electric conductivity meter and a resin catcher are arranged on the condensate outflow pipeline;
further, the regeneration device can be filled with cation exchange resin with hydrogen conductivity;
further, a liquid level probe is arranged in the resin catcher;
further, the connection relationship between the valve for controlling water flow and each device is as follows:
the wastewater flows out of the separation tower, the negative regeneration tower and the positive regeneration tower, and flows to the regeneration device and the resin catcher through the drainage gate of the separation tower, the drainage gate of the negative regeneration tower and the drainage gate of the positive regeneration tower respectively;
the waste water flows out from the outlet door of the regenerating device to the resin catcher through the inlet door of the regenerating device, the electromagnetic flowmeter and the conductivity meter;
the wastewater flows out of the resin catcher and flows into the high-salt wastewater tank and the low-salt wastewater tank through the high-salt wastewater tank inlet door and the low-salt wastewater tank inlet door.
The recycling system for the condensate fine treatment regeneration wastewater of the thermal power plant solves the problems that when resin regeneration is carried out, abnormal water vapor quality caused by incomplete regeneration cannot be found in time, and a large amount of water resources are wasted when wastewater treatment is carried out.
Drawings
FIG. 1 is a schematic diagram of a resin regeneration module structure of a condensate polishing and regenerating wastewater recycling system of a thermal power plant;
in the figure: 1. a separating tower drainage gate, a cathode regeneration tower drainage gate, a anode regeneration tower drainage gate, a regeneration device inlet gate, a regeneration device outlet gate, a high salt wastewater pond inlet gate, a low salt wastewater pond inlet gate the device comprises a separation tower 8, a negative regeneration tower 9, a positive regeneration tower 10, a regeneration device 11, an electromagnetic flowmeter 12, an electric conductivity meter 13, a resin catcher 14, a high-salt wastewater tank 15 and a low-salt wastewater tank 16.
Detailed Description
The following detailed description of the embodiments of the present utility model is given with reference to the accompanying drawings, in which illustration and description are omitted for clarity.
The utility model provides a condensate fine treatment regeneration wastewater recycling system of a thermal power plant, which sequentially comprises a condensate inflow pipeline, a resin regeneration device, a condensate outflow pipeline and a treated wastewater storage device according to the flow direction of wastewater after fine treatment; the resin regeneration device comprises a separation tower 8, a negative regeneration tower 9, a positive regeneration tower 10 and a regeneration device 11; the separation tower 8, the negative regeneration tower 9 and the positive regeneration tower 10 are connected with each other through pipelines; the treated wastewater storage device comprises a high-salt wastewater tank 15 and a low-salt wastewater tank 16; the valves for controlling water flow among the components comprise a separation tower drainage door 1, a female regeneration tower drainage door 2, a male regeneration tower drainage door 3, a regeneration device inlet door 4, a regeneration device outlet door 5, a high-salt wastewater pool inlet door 6 and a low-salt wastewater pool inlet door 7.
As shown in fig. 1, a separation tower drainage door 1, a female regeneration tower drainage door 2 and a male regeneration tower drainage door 3 are formal system valves, and are automatically opened and closed according to the system steps to control the flow direction of wastewater;
wherein, the separating tower 8 has the function that when the refined resin fails, the yin-yang mixed resin is transferred to the separating tower for separation, and the separated negative resin and positive resin are respectively transferred to the negative regeneration tower 9 and the positive regeneration tower 10 and are respectively regenerated at the same time; the resin trap 14 is a formal system, the purpose of which is to prevent resin in the regeneration tower from leaking into the wastewater tank; a liquid level probe is installed in the resin trap 14 for detecting resin leakage. The "level high" signal signals any regeneration steps that remain in progress for 5 seconds of shutdown, reducing losses. The regeneration device 11 may be filled with a cation exchange resin having a hydrogen conductivity meter.
Wherein, the resin regeneration procedure is divided into: backwash separation, cation and anion regeneration, cation regeneration tank resin mixing forward washing, resin storage tank resin mixing forward washing, cation regeneration tank to resin separation tank, and cation regeneration tank to resin separation tank. When the hydrogen conductivity meter cation exchange resin fails, the resin is taken down and filled into the regeneration device 11, and when the resin regeneration step enters into the acid feeding and replacing step, the regeneration device inlet door 4 and the regeneration device outlet door 5 are opened, and the valve opening of the regeneration device outlet door 5 can be adjusted by referring to the numerical value of the electromagnetic flowmeter 12 to adjust the regeneration flow;
wherein, when 13. The electric conductivity meter shows a value less than or equal to 0.1 mu S/cm, the regeneration is finished, the inlet door 4 and the outlet door 5 of the regeneration device are closed, the resin in the regeneration device 11 is taken out and filled into the exchange column of the hydrogen electric conductivity meter. If regeneration of the hydrogen conductivity meter cation exchange resin is not required, the regenerator inlet door 4 and the regenerator outlet door 5 remain closed.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The condensate fine treatment and regeneration wastewater recycling system of the thermal power plant is characterized by sequentially comprising a condensate inflow pipeline, a resin regeneration device, a condensate outflow pipeline and a treated wastewater storage device according to the wastewater flow direction;
the resin regeneration device comprises a separation tower (8), a negative regeneration tower (9), a positive regeneration tower (10) and a regeneration device (11);
the separation tower (8), the negative regeneration tower (9) and the positive regeneration tower (10) are connected with each other through pipelines;
the treated wastewater storage device comprises a high-salt wastewater tank (15) and a low-salt wastewater tank (16);
the valve for controlling water flow is arranged among the components and comprises a separation tower drainage door (1), a female regeneration tower drainage door (2), a male regeneration tower drainage door (3), a regeneration device inlet door (4), a regeneration device outlet door (5), a high-salt wastewater pool inlet door (6) and a low-salt wastewater pool inlet door (7).
2. The recycling system for the condensate polishing and regenerating wastewater of a thermal power plant according to claim 1, wherein an electromagnetic flowmeter (12) and a conductivity meter (13) are arranged on a condensate outflow pipeline.
3. A condensate polishing and regenerating waste water recycling system of a thermal power plant according to claim 1, wherein a resin catcher (14) is provided on the condensate outflow pipe.
4. The recycling system for condensate polishing and regenerating wastewater in a thermal power plant according to claim 1, wherein the regenerating device (11) is filled with a cation exchange resin with a hydrogen conductivity meter.
5. A condensate polishing and regenerating waste water recycling system for a thermal power plant according to claim 3, wherein a liquid level probe is installed in the resin catcher (14).
6. The recycling system of condensate polishing and regenerating waste water in a thermal power plant according to claim 1, wherein the connection relationship between the valve for controlling water flow and each device is:
the wastewater flows out of the separation tower (8), the female regeneration tower (9) and the male regeneration tower (10) and respectively flow to the regeneration device (11) and the resin catcher (14) through the separation tower drainage gate (1), the female regeneration tower drainage gate (2) and the male regeneration tower drainage gate (3);
the waste water flows out of the regenerating device outlet door (5) through the regenerating device inlet door (4), the regenerating device (11), the electromagnetic flowmeter (12) and the electric conductivity meter (13) and flows into the resin catcher (14);
the wastewater flows out of the resin catcher (14) and flows into the high-salt wastewater tank (15) and the low-salt wastewater tank (16) through the high-salt wastewater tank inlet door (6) and the low-salt wastewater tank inlet door (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223290504.0U CN219341845U (en) | 2022-12-08 | 2022-12-08 | Condensate fine treatment regeneration wastewater recycling system of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223290504.0U CN219341845U (en) | 2022-12-08 | 2022-12-08 | Condensate fine treatment regeneration wastewater recycling system of thermal power plant |
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| Publication Number | Publication Date |
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| CN219341845U true CN219341845U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223290504.0U Active CN219341845U (en) | 2022-12-08 | 2022-12-08 | Condensate fine treatment regeneration wastewater recycling system of thermal power plant |
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| CN (1) | CN219341845U (en) |
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2022
- 2022-12-08 CN CN202223290504.0U patent/CN219341845U/en active Active
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