CN212299994U - An automatic recovery device for condensed water in a power plant - Google Patents
An automatic recovery device for condensed water in a power plant Download PDFInfo
- Publication number
- CN212299994U CN212299994U CN202020923517.9U CN202020923517U CN212299994U CN 212299994 U CN212299994 U CN 212299994U CN 202020923517 U CN202020923517 U CN 202020923517U CN 212299994 U CN212299994 U CN 212299994U
- Authority
- CN
- China
- Prior art keywords
- water
- recovery
- water tank
- condenser
- ball valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 226
- 238000011084 recovery Methods 0.000 title claims abstract description 80
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000004064 recycling Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 14
- 238000005188 flotation Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000007667 floating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
本实用新型公开了一种发电厂凝杂水全自动回收装置，该回收装置包括凝杂水回收水进水管路，凝杂水通过布水管回收至回收水箱，通过实时采集水箱液位，使用PLC控制器对回收水箱至凝汽器回水电动阀、水箱高位溢流电动阀和底部排水电动阀进行自动控制，保证回收水箱液位在一定范围内；同时水箱内部设有浮筒密封件，通过软连接进行密封保证无论在何种情况下凝汽器回水管道中都不漏入空气，不影响凝汽器真空。本实用新型通过浮筒软连接密封件和液位自动联锁技术，可克服凝杂水回收水流量变化大、压力不稳定等问题，同时，PLC控制器所有信号均可引入DCS远程监视，操作简单、安全可靠，可用于分级深度节水，节能降耗。
The utility model discloses an automatic recovery device for condensed and miscellaneous water in a power plant. The recovery device comprises a water inlet pipeline for condensed and miscellaneous water recovered water. The controller automatically controls the recovery water tank to the condenser return water electric valve, the water tank high-level overflow electric valve and the bottom drain electric valve to ensure that the liquid level of the recovery water tank is within a certain range; The connection is sealed to ensure that no air leaks into the condenser return pipe under any circumstances, and does not affect the condenser vacuum. The utility model can overcome the problems of large change in the flow rate of the condensed and miscellaneous water recovery water, unstable pressure, etc. through the soft connection seal of the buoy and the liquid level automatic interlocking technology. , Safe and reliable, can be used for graded depth water saving, energy saving and consumption reduction.
Description
Technical Field
The utility model relates to a systematic hydrologic cycle technical field of power plant's steam especially relates to a full-automatic recovery unit of miscellaneous water congeals in power plant.
Background
The thermal power plant is a large household of industrial water, and the water consumption and the water discharge are very large. With the stricter wastewater discharge standards and the increasing water resource charge collection standards in various regions, deep water saving and zero discharge become hot points of concern at home and abroad. Deep water saving means that various technical means are fully utilized to ensure that water resources are used and treated and recycled to the maximum extent in a power plant, and the wastewater discharge amount can be reduced as much as possible. The heat-engine plant impurity condensing water systems are various, the difference of the water quality of each system is large, and classification and recovery of some high-quality impurity condensing water is an effective measure for realizing deep water saving.
At present, mechanical seal water of a condensate pump, drainage of a generator water cooling system and drainage of a chemical instrument water cooling system in a thermal power plant are recovered in different degrees, but most of the drainage of the thermal power plant is directly drained into a unit drainage tank and enters a wastewater treatment system, and great waste exists. In fact, the quality of the part of water is high, the quality standard of the hydrophobic water and the production water recycled to the condenser is met, and the part of water can be directly recycled to the condenser.
The mode that thermal power plant generally adopted the water tank to install level gauge interlocking export electrical control valve additional at present retrieves partial sealing water, and operating personnel need real-time supervision water tank liquid level and governing valve state, in case when the liquid level appears and hangs down or the governing valve trouble, very easily takes place the phenomenon of air of inhaling, influences the condenser vacuum when serious, brings the challenge to unit safe operation. In view of the above, there is a need for a device and a method for fully automatically recycling condensed water in a power plant.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model provides a full-automatic recovery unit of miscellaneous water congeals in power plant has realized congealing the categorised recovery of miscellaneous aquatic high-quality drainage, guarantees not to influence the condenser vacuum, realizes unit safety, economic operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a full-automatic recovery device for condensed impurity water in a power plant comprises a recovery water tank 13 communicated with the condensed impurity water recovery water tank through a water distribution pipeline 4, wherein a condensed impurity water recovery water collection main pipe water inlet stop valve 1 and a condensed impurity water recovery water collection main pipe water inlet electric ball valve 2 are arranged on the water distribution pipeline 4, a buoy 5 is arranged in the recovery water tank 13, a buoy sealing member 6 is arranged at the bottom of the buoy 5, a liquid level meter 3 is arranged on the recovery water tank 13, the bottom of the recovery water tank 13 is communicated with a condenser 14 through a condensed impurity water to condenser water return pipeline, and the condensed impurity water to condenser water return pipeline is provided with recovered water to a condenser electric ball valve 10 and recovered water to a condenser stop valve 11; the bottom of the recovery water tank 13 is also communicated with a drainage pipeline, the upper part of the recovery water tank is communicated with an overflow pipeline, a recovery water tank drainage electric ball valve 7 is arranged on the drainage pipeline, a recovery water tank overflow electric ball valve 8 is arranged on the overflow pipeline, the drainage pipeline and the overflow pipeline are communicated through a tee joint and are communicated with a unit drainage groove through a recovery water tank drainage valve 9; the device also comprises a PLC (programmable logic controller) 12 connected with the liquid level meter 3, the condensed water collecting main pipe water incoming electric ball valve 2, the recovered water to condenser electric ball valve 10, the recovered water tank drainage electric ball valve 7 and the recovered water tank overflow electric ball valve 8.
The liquid level meter 3 is a magnetic turning plate liquid level meter.
The recycled water passes through water distribution pipeline 4 and gets into recovery tank 13, and when 13 liquid levels of recovery tank rose to a take the altitude, buoy 5 slowly floated, and the recycled water gets into congeals miscellaneous water to condenser return water pipeline, gets into condenser 14 through congealing the electronic ball valve 10 of recycled water and the entering of recycled water stop valve 11 that miscellaneous water set gradually on to condenser return water pipeline.
The float sealing member 6 is buried below the float 5 all the time, and when the liquid level of the recovery water tank continuously rises until the float 5 floats, the float sealing member 6 is opened.
The magnetism that sets up on the recovery tank 13 turns over board level gauge 3 and conveys the liquid level to PLC controller 12 through 4 ~ 20mA signals, and PLC controller 12 carries out high liquid level H1, high liquid level H2 and judges, and PLC controller 12 interlocks and opens recovery water electric ball valve 10 and recovery tank overflow electric ball valve 8, guarantees that recovery tank 13 is not full of water, does not influence condenser 14 vacuum.
The control method of the full-automatic condensed water recovery device for the power plant comprises the following steps: opening a condensed water recycled water collecting main pipe incoming water stop valve 1 and a condensed water recycled water collecting main pipe incoming water electric ball valve 2, then sequentially opening a water discharge valve 9 of a recycled water tank and recycled water to a condenser stop valve 11, enabling the condensed water incoming water to enter a recycled water tank 13 through a water distribution pipeline 4, setting a high liquid level H1 and a high liquid level H2 value in a PLC (programmable logic controller) 12, judging the liquid level through an acquired liquid level meter 3 signal by the PLC 12, when the liquid level of the water tank reaches a high liquid level H1, floating a floating barrel 5 floats, opening a floating barrel sealing member 6, interlocking and opening the recycled water to the condenser electric ball valve 10 by the PLC 12, and recycling the condensed water to the condenser 14; the recovery water tank liquid level slowly descends this moment, and normal back when the water tank liquid level, flotation pontoon 5 sinks, and flotation pontoon sealing member 6 closes, and PLC controller 12 interlocking is closed and is retrieved water to condenser electric ball valve 10, and whole in-process flotation pontoon sealing member 6 is below the water level line all the time, retrieves water and can not leak into the air to condenser pipeline, does not influence the condenser vacuum.
When the recovery water tank liquid level continues to rise to high liquid level H2, recovery water tank overflow electric ball valve 8 is opened in the interlocking of PLC controller 12, and the part is congealed miscellaneous water and is passed through the drain pipe and flow into unit water drainage tank, falls back to behind high liquid level H2 below when the liquid level, and recovery water tank overflow electric ball valve 8 is closed in the interlocking of PLC controller 12, guarantees that recovery water tank 13 is not full of water.
Compared with the prior art, the utility model discloses possess following advantage:
the utility model discloses device and method simple and practical and control are reliable, can realize condensing the hierarchical recovery of miscellaneous water to high-quality, adopt flotation pontoon flexible coupling sealing technique and water tank liquid level interlocking protection technique, have improved the security and the reliability of condensing miscellaneous water recovery greatly.
Adopt the utility model discloses device and method have not only realized the degree of depth of high-quality miscellaneous water of condensing and have retrieved, have still significantly reduced operation personnel's work load, have improved thermal generator set security and the economic nature of operation.
Drawings
Fig. 1 is the utility model discloses a full-automatic recovery unit of miscellaneous water congeals in power plant schematic diagram.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model relates to a full-automatic recovery unit of power plant condensed water, including the recovery water tank 13 that communicates through water distribution pipeline 4 with the condensed water recovery water tank, be provided with condensed water recovered water on the water distribution pipeline 4 and collect female pipe incoming water stop valve 1 and condensed water recovered water and collect female pipe incoming water electric ball valve 2, be provided with flotation pontoon 5 in the recovery water tank 13, flotation pontoon 5 bottom is provided with flotation pontoon sealing member 6, set up level gauge 3 on the recovery water tank 13, recovery water tank 13 bottom is through condensing water to condenser return water pipeline intercommunication condenser 14, condensed water is provided with recovered water to condenser electric ball valve 10 and recovered water to condenser stop valve 11 on the condenser return water pipeline; the bottom of the recovery water tank 13 is also communicated with a drainage pipeline, the upper part of the recovery water tank is communicated with an overflow pipeline, a recovery water tank drainage electric ball valve 7 is arranged on the drainage pipeline, a recovery water tank overflow electric ball valve 8 is arranged on the overflow pipeline, the drainage pipeline and the overflow pipeline are communicated through a tee joint and are communicated with a unit drainage groove through a recovery water tank drainage valve 9; the device also comprises a PLC (programmable logic controller) 12 connected with the liquid level meter 3, the condensed water collecting main pipe water incoming electric ball valve 2, the recovered water to condenser electric ball valve 10, the recovered water tank drainage electric ball valve 7 and the recovered water tank overflow electric ball valve 8.
The liquid level meter 3 is a magnetic turning plate liquid level meter.
The float sealing member 6 is buried below the float 5 all the time, and when the liquid level of the recovery water tank continuously rises until the float 5 floats, the float sealing member 6 is opened.
The recycled water passes through water distribution pipeline 4 and gets into recovery tank 13, and when 13 liquid levels of recovery tank rose to a take the altitude, buoy 5 slowly floated, and the recycled water gets into congeals miscellaneous water to condenser return water pipeline, gets into condenser 14 through congealing the electronic ball valve 10 of recycled water and the entering of recycled water stop valve 11 that miscellaneous water set gradually on to condenser return water pipeline.
The magnetism that sets up on the recovery tank 13 turns over board level gauge 3 and conveys the liquid level to PLC controller 12 through 4 ~ 20mA signals, and PLC controller 12 carries out high liquid level H1, high liquid level H2 and judges, and PLC controller 12 interlocks and opens recovery water electric ball valve 10 and recovery tank overflow electric ball valve 8, guarantees that recovery tank 13 is not full of water, does not influence condenser 14 vacuum.
The drainage pipeline is provided with a drainage electric ball valve 7, when the condensed impurity water recycled water does not meet the quality standard of recycling the production water to the condenser, the drainage electric ball valve 7 on the drainage pipeline can be opened, and the condensed impurity water recycled water is directly drained into a drainage tank of the unit and enters a wastewater treatment system; when the condensed water recycled water meets the quality standard of recycling the production water to the condenser, the electric drainage ball valve 7 is closed, and the full-automatic recycling of the condensed water is realized.
As shown in fig. 1, the utility model relates to a control method of full-automatic recovery unit of power plant condensed water, the condensed water recovered water that opens condensed water recovered water tank intercommunication collects female pipe water incoming stop valve 1 and condensed water recovered water collects female pipe water incoming electric ball valve 2, open recovered water tank drain valve 9 and recovered water to condenser stop valve 11 in proper order again, condensed water incoming water gets into recovered water tank 13 through water distribution pipeline 4, set up high liquid level H1, high liquid level H2 value in PLC controller 12, PLC controller 12 carries out liquid level judgement through the level gauge 3 signal that gathers, when the water tank liquid level reaches high liquid level H1, flotation pontoon 5 floats, flotation pontoon sealing member 6 opens, PLC controller 12 interlocks and opens recovered water to condenser electric ball valve 10, condensed water is retrieved to condenser 14; the recovery water tank liquid level slowly descends this moment, and after the water tank liquid level was normal, flotation pontoon 5 sinks, and flotation pontoon sealing member 6 closes, and PLC controller 12 interlocking closes recovery water to condenser electric ball valve 10. The buoy sealing element 6 is always below the water level line in the whole process, and air cannot leak into a pipeline for recovering water to the condenser, so that the vacuum of the condenser is not influenced.
When the recovery water tank liquid level continues to rise to high liquid level H2, recovery water tank overflow electric ball valve 8 is opened in the interlocking of PLC controller 12, and the part is congealed miscellaneous water and is passed through the drain pipe and flow into unit water drainage tank, falls back to behind high liquid level H2 below when the liquid level, and recovery water tank overflow electric ball valve 8 is closed in the interlocking of PLC controller 12, guarantees that recovery water tank 13 is not full of water.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020923517.9U CN212299994U (en) | 2020-05-27 | 2020-05-27 | An automatic recovery device for condensed water in a power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020923517.9U CN212299994U (en) | 2020-05-27 | 2020-05-27 | An automatic recovery device for condensed water in a power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212299994U true CN212299994U (en) | 2021-01-05 |
Family
ID=73969930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020923517.9U Active CN212299994U (en) | 2020-05-27 | 2020-05-27 | An automatic recovery device for condensed water in a power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212299994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294339A (en) * | 2021-07-07 | 2021-08-24 | 华能(广东)能源开发有限公司汕头电厂 | Automatic water replenishing system of water-ring vacuum pump for thermal power plant |
-
2020
- 2020-05-27 CN CN202020923517.9U patent/CN212299994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294339A (en) * | 2021-07-07 | 2021-08-24 | 华能(广东)能源开发有限公司汕头电厂 | Automatic water replenishing system of water-ring vacuum pump for thermal power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203687003U (en) | Boiler regular blowdown drainage recovery system | |
| CN203880386U (en) | Automatic drain tank with middle baffle plate | |
| CN110374700A (en) | A kind of gas-steam combined cycle set drained water recovery system | |
| CN212299994U (en) | An automatic recovery device for condensed water in a power plant | |
| CN214460936U (en) | Steam turbine factory building condensate water recycle system | |
| CN207468255U (en) | A kind of Horizontal oil-water separator | |
| CN220036743U (en) | An emergency water discharge device for a shaft seal heater | |
| CN207819678U (en) | Automatic water replenishing system | |
| CN201892031U (en) | Gas pipeline drainer | |
| CN104764194B (en) | Water energy hot water engineering machine system | |
| CN215403286U (en) | Sewage treatment device for monitoring water quality | |
| CN201031154Y (en) | floating oil skimmer | |
| CN210568339U (en) | Boiler fixed-row drainage system | |
| CN208749414U (en) | A kind of turbine drain system | |
| CN214096703U (en) | Low temperature sample frame water sample drainage recovery unit | |
| CN202125939U (en) | Automatic control device for recovery of waste steam of deaerator in generating station | |
| CN212745951U (en) | Buffer device for drainage equipment | |
| CN204730456U (en) | Water energy hot water engineering machine system | |
| CN112663759A (en) | System and method for recycling condensed water of steam turbine plant | |
| CN207764053U (en) | A kind of resistance to compression detection device of pressure vessel | |
| CN209655586U (en) | A heat exchanger and a wall-hung boiler having the same | |
| CN104843897B (en) | A kind of except aluminum filter | |
| CN201280442Y (en) | Waste water reclaiming apparatus in battery separator production | |
| CN112240230A (en) | Low-position-arranged combined cycle unit drainage system and operation method | |
| CN216205429U (en) | Steam condensate recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |