CN206369202U - Power plant steam water sampling water reclamation system - Google Patents
Power plant steam water sampling water reclamation system Download PDFInfo
- Publication number
- CN206369202U CN206369202U CN201621464092.XU CN201621464092U CN206369202U CN 206369202 U CN206369202 U CN 206369202U CN 201621464092 U CN201621464092 U CN 201621464092U CN 206369202 U CN206369202 U CN 206369202U
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- header tank
- water
- liquid level
- condenser
- sampling
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Abstract
The utility model discloses a kind of power plant steam water sampling water reclamation system, collect main pipe including what the header tank that is arranged in condensate pump melt pit and being arranged on was used to collecting steam water sampling water above header tank, the steam water sampling water collected in main pipe enters header tank by flow by gravity, the liquid level gauge for monitoring liquid level in header tank is provided with header tank, header tank is connected by outlet conduit with condenser, condenser is used to reclaim water sample in header tank, the filter and control header tank and the control valve of condenser break-make for filtering and sampling impurities in water are disposed with outlet conduit between header tank and condenser, by being disposed with filter and control valve on the outlet conduit between header tank and condenser, realize the purpose for reclaiming unit steam water sampling water and recycling, flow by gravity is relied on when collecting water sample, sucked when reclaiming water sample by condenser negative pressure, any power consumption is not increased, with obvious water saving and energy-saving effect.
Description
Technical field
The utility model belongs to power plant water-treatment technology field, and in particular to a kind of power plant steam water sampling Water Sproading system
System.
Background technology
Pass through the supervision to unit water and steam quality, it is ensured that steam purity, prevent boiler tube from corroding, so that it is guaranteed that unit is pacified
Row for the national games.At present, Once-through Boiler sampling water mainly includes condensate pump outlet sampling, mixed bed outlet sampling, precision processing outlet main pipe
Sampling, the sampling of oxygen-eliminating device entrance, oxygen-eliminating device outlet sampling, economizer import sampling, separator sampling, superheated steam are sampled, again
Vapours sampling, HP heater drainage sampling, low plus hydrophobic sampling etc., drum boiler also include stove water sampling, saturated vapor sampling etc., on
These sampling waters stated are by the way of directly discharging, the discharge of steam water sampling water, cause the waste of water resource, especially right
Become apparent in water shortage zone.Thermal power plant's water saving has been listed in emphasis research topic, by reclaiming steam water sampling water extremely
Unit condenser, can utilize steam water sampling Water Sproading, with good water saving and energy-conserving action.In addition, part power plant in order to
Water saving, often closes hand sample valve, only just opens hand sample valve in sampling, causes institute's water sampling frequently contaminated,
It has impact on the accuracy of analysis test.In consideration of it, needing a kind of method that can realize steam water sampling Water Sproading.
The content of the invention
In order to realize the recovery of steam water sampling water and recycle, the utility model provides a kind of power plant steam water sampling
Water reclamation system, it is real by being disposed with filter and control valve on the outlet conduit between header tank and condenser
Showed and reclaimed unit steam water sampling water and the purpose that recycles, flow by gravity is relied on when collecting water sample, when reclaiming water sample according to
By the suction of condenser negative pressure, any power consumption is not increased, with obvious water saving and energy-saving effect.
To achieve the above objectives, the utility model is adopted the following technical scheme that：A kind of power plant steam water sampling Water Sproading system
System, including the header tank being arranged in condensate pump melt pit are used to collect collecting for steam water sampling water with header tank top is arranged on
Main pipe, collects the steam water sampling water in main pipe and enters to be provided with header tank, header tank by flow by gravity and catchmented for monitoring
The liquid level gauge of liquid level in case, header tank is connected by outlet conduit with condenser, and condenser is used to reclaim header tank reclaimed water
Filter and the control for filtering and sampling impurities in water are disposed with sample, the outlet conduit between header tank and condenser
Header tank and the control valve of condenser break-make.
Liquid level ceiling value and liquid level lower limit value are provided with liquid level gauge.
When liquid level reaches the liquid level ceiling value of liquid level gauge setting in header tank, control valve is opened, condensing is utilized
The steam water sampling Water Sproading that the negative pressure of device collects header tank is to condenser；When liquid level reaches that liquid level gauge is set in header tank
Liquid level lower limit value when, closing control valve disconnects the connection between header tank and condenser, and condenser stops reclaiming water sample.
Protection valve is additionally provided with outlet conduit between header tank and condenser.
Liquid level in the ultralow limit value of liquid level, header tank is provided with liquid level gauge and reaches that the liquid level of setting in liquid level gauge is ultralow
During limit value, the connection closed between protection valve disconnection header tank and condenser, condenser stops reclaiming water sample.
It is protection motor-driven valve to protect valve.
Liquid level is calculated as band remote transfer signal liquid level gauge.
Control valve is control motor-driven valve.
Liquid level gauge realizes the control to control valve and protection valve by PLC.
Compared with prior art, the utility model at least has the following advantages that, the utility model is simple and practical and safety can
Lean on, collect main pipe and collect instrument sampling water sample and hand sample water sample on steam water sampling frame, collect the steam water sampling in main pipe
Water enters header tank by flow by gravity, by being disposed with filter on the outlet conduit between header tank and condenser
And control valve, the purpose for reclaiming unit steam water sampling water and recycling is realized, flow by gravity is relied on when collecting water sample,
Sucked when reclaiming water sample by condenser negative pressure, do not increase any power consumption, with obvious water saving and energy-saving effect.
Further, in order to prevent because of the vacuum of control valve fault impact condenser, between header tank and condenser
Outlet conduit on be additionally provided with protection valve, when control valve breaks down, the liquid level gauge on header tank can be caused to reach
The ultralow limit value of level set, now, protection valve are closed automatically, it is ensured that condenser vacuum is unaffected, it is ensured that unit is pacified
Full stable operation.
Further, protection valve is protection motor-driven valve, and control valve is control motor-driven valve, realizes the automatic of the system
Change control.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In accompanying drawing：1- collects main pipe, 2- header tanks, 3- liquid level gauges, 4- filters, 5- control valves, 6- protection valves, 7-
Condenser.
Embodiment
Embodiment of the present utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model includes the header tank 2 being arranged in condensate pump melt pit and is arranged on header tank 2
What top was used to collecting steam water sampling water collects main pipe 1, collects the steam water sampling water in main pipe 1 and is entered by flow by gravity and is catchmented
The liquid level gauge 3 for monitoring liquid level in header tank 2 is provided with case 2, header tank 2, liquid level gauge 3 is band remote transfer signal liquid level
Liquid level ceiling value, liquid level lower limit value and the ultralow limit value of liquid level are provided with meter, liquid level gauge 3；Header tank 2 by outlet conduit with
Condenser 7 is connected, and condenser 7 is used to reclaim on water sample in header tank 2, the outlet conduit between header tank 2 and condenser 7 successively
It is provided with the control valve 5 of the filter 4 for filtering and sampling impurities in water, control header tank 2 and the break-make of condenser 7 and protects
Protect valve 6.
When liquid level reaches the liquid level ceiling value that liquid level gauge 3 is set in header tank 2, control valve 5 is opened, using solidifying
The steam water sampling Water Sproading that the negative pressure of vapour device 7 collects header tank 2 is to condenser 7；When liquid level reaches liquid level in header tank 2
During the liquid level lower limit value of the setting of meter 3, closing control valve 5 disconnects the connection between header tank 2 and condenser 7, and condenser 7 stops
Non-return receives water sample；When liquid level reaches the ultralow limit value of the liquid level of setting in liquid level gauge 3 in header tank 2, protection valve 6 is closed
The connection between header tank 2 and condenser 7 is disconnected, condenser 7 stops reclaiming water sample.
It is protection motor-driven valve to protect valve 6, and control valve 5 is control motor-driven valve, and liquid level gauge 3 is used to obtain in header tank 2
Liquid level, is compared by liquid level with limit value, so as to be manipulated to control valve 5 and protection valve 6, in this reality
With in a new embodiment, electronic threshold switch is directly manipulated (that is, contact using the liquid level restriction signal of liquid level gauge 3
Formula, similar tongue tube control principle)；In another embodiment of the present utility model, liquid level gauge 3 is by liquid level gauge electric signal and electronic
Threshold switch signal feeds back to PLC, and control valve 5 and the protection switch motion of valve 6 are performed by PLC.
Claims (9)
1. power plant steam water sampling water reclamation system, it is characterised in that including the header tank (2) being arranged in condensate pump melt pit
It is used for the steam water sampling for collecting main pipe (1), collecting in main pipe (1) for collecting steam water sampling water above header tank (2) with being arranged on
Water enters the liquid being provided with header tank (2), header tank (2) for monitoring header tank (2) interior liquid level by flow by gravity
Position meter (3), header tank (2) is connected by outlet conduit with condenser (7), and condenser (7) is used to reclaim header tank (2) reclaimed water
The filter for filtering and sampling impurities in water is disposed with sample, the outlet conduit between header tank (2) and condenser (7)
And control header tank (2) and the control valve (5) of condenser (7) break-make (4).
2. steam water sampling water reclamation system in power plant according to claim 1, it is characterised in that set in liquid level gauge (3)
There are liquid level ceiling value and liquid level lower limit value.
3. steam water sampling water reclamation system in power plant according to claim 2, it is characterised in that when header tank (2) interior liquid
When face highly reaches the liquid level ceiling value of liquid level gauge (3) setting, control valve (5) is opened, will be collected using the negative pressure of condenser (7)
The steam water sampling Water Sproading that water tank (2) is collected is to condenser (7)；When header tank (2) interior liquid level reaches that liquid level gauge (3) is set
Liquid level lower limit value when, closing control valve (5) disconnects the connection between header tank (2) and condenser (7), condenser (7) stops
Non-return receives water sample.
4. steam water sampling water reclamation system in power plant according to claim 1, it is characterised in that header tank (2) and condensing
Protection valve (6) is additionally provided with outlet conduit between device (7).
5. steam water sampling water reclamation system in power plant according to claim 4, it is characterised in that set in liquid level gauge (3)
There is a ultralow limit value of liquid level, when header tank (2) interior liquid level reaches the liquid level of setting in liquid level gauge (3) ultralow limit value, close and protect
The connection protected between valve (6) disconnection header tank (2) and condenser (7), condenser (7) stops reclaiming water sample.
6. steam water sampling water reclamation system in power plant according to claim 4, it is characterised in that protection valve (6) is guarantor
Protect motor-driven valve.
7. steam water sampling water reclamation system in power plant according to claim 1, it is characterised in that liquid level gauge (3) is that band is remote
Pass signal liquid level gauge.
8. steam water sampling water reclamation system in power plant according to claim 1, it is characterised in that control valve (5) is control
Motor-driven valve processed.
9. steam water sampling water reclamation system in power plant according to claim 4, it is characterised in that liquid level gauge (3) passes through PLC
Realize the control to control valve (5) and protection valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621464092.XU CN206369202U (en) | 2016-12-28 | 2016-12-28 | Power plant steam water sampling water reclamation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621464092.XU CN206369202U (en) | 2016-12-28 | 2016-12-28 | Power plant steam water sampling water reclamation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206369202U true CN206369202U (en) | 2017-08-01 |
Family
ID=59392874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621464092.XU Active CN206369202U (en) | 2016-12-28 | 2016-12-28 | Power plant steam water sampling water reclamation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206369202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765032A (en) * | 2016-12-28 | 2017-05-31 | 华电电力科学研究院 | A kind of power plant steam water sampling water reclamation system and recovery method |
-
2016
- 2016-12-28 CN CN201621464092.XU patent/CN206369202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765032A (en) * | 2016-12-28 | 2017-05-31 | 华电电力科学研究院 | A kind of power plant steam water sampling water reclamation system and recovery method |
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