CN208802845U - Thermal power plant system for recycling sample water - Google Patents
Thermal power plant system for recycling sample water Download PDFInfo
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- CN208802845U CN208802845U CN201821033127.3U CN201821033127U CN208802845U CN 208802845 U CN208802845 U CN 208802845U CN 201821033127 U CN201821033127 U CN 201821033127U CN 208802845 U CN208802845 U CN 208802845U
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Abstract
The utility model provides a kind of thermal power plant system for recycling sample water, comprising: collects water tank, collects water pump and subsidiary engine cooling water tank；Wherein, the collection water tank is connect by pipeline with the collection water pump, and the collection water pump is connect by pipeline with subsidiary engine cooling water tank；The collection water tank is used for: collecting sampling water from steam and water sampling ap paratus or manual sampling point；The collection water pump is used for: sampling water is pumped into the subsidiary engine cooling water tank from the collection water tank.Due to the program by sampling water that steam and water sampling ap paratus is collected by being pumped into cooling water tank by collecting water tank, collecting water pump, add rate of water make-up for subsidiary engine cooling water, such sampling water is not discharged into trench, achievees the purpose that environmental protection of saving water and energy.
Description
Technical field
The utility model relates to power plant water-treatment technology fields, in particular to a kind of thermal power plant sampling water recycling system
System.
Background technique
Thermal power plant single-machine capacity is increasing, is increasingly stringenter to the control of steam index, steam on-line monitoring and
Manual sampling comparison has become necessary monitoring means.Currently, water, vapour using traditional steam and water sampling ap paratus to large-sized unit
It is sampled, as shown in Figure 1, about 13 water and steam sampling points, form 13 kinds of water and steam samplings (such as 1 to 13 institute in Fig. 1
Show), sample point, sampling parameters and configuration instrument are as shown in table 1.
Table 1
As shown in Figure 1, the water of high temperature, high pressure, vapour sample lead to two-stage cooler with pipeline, become 25 DEG C of water after cooling
Sample, then the water sample (demineralized water) is divided into two-way, enter in-line meter after thermostat (25 ± 0.1 DEG C) all the way, such as: sodium
Table, silicon table, conductance table, dissolved oxygen table and pH table (14 to 19 in Fig. 1) etc., are monitored on-line, into the water sample of in-line meter
After completing measurement, it is discharged into trench (21 in Fig. 1).Enter artificial sample point all the way, analyzed convenient for artificial sample, artificial sample is every
A sample about takes 500ml, takes daily 6-12 water sample (24 hours), remaining time water sample arranges trench.Water sample be it is without interruption,
Flow is 500ml-700ml/min.In-line meter is continuous monitoring, continuously display boiler water and steam quality, manual sampling formed with
The comparison of in-line meter, it is ensured that the supplement monitoring when accuracy and instrument fault of in-line meter.But though manual sampling also
It is the water sample for instrument, most of thermal power plants do not carry out classification recycling to steam and water sampling ap paratus sample water, lead to a large amount of water quality
Sampling water good, that salt content is low is discharged into wastewater collection system together with cooling water, sewerage, and industrial wastewater is finally taken as to carry out
Processing increases sewage treatment equipment load and chemicals input amount increases, not only waste money, but be unfavorable for it is energy-saving and
Environmental protection.
Utility model content
The utility model embodiment provides a kind of thermal power plant system for recycling sample water, can fill to sampling water
Divide and utilize, is conducive to energy-saving and environmental protection.
The thermal power plant system for recycling sample water includes: to collect water tank, collect water pump and subsidiary engine cooling water tank；
Wherein, the collection water tank is connect by pipeline with the collection water pump, the collection water pump pass through pipeline with it is auxiliary
The connection of machine cooling water tank；
The collection water tank is used for: collecting sampling water from steam and water sampling ap paratus or manual sampling point；
The collection water pump is used for: sampling water is pumped into the subsidiary engine cooling water tank from the collection water tank.
In one embodiment, the collection tank top is equipped with overflow pipe.
In one embodiment, liquid level sensor is installed in the collection water tank；
In one embodiment, the collection water tank bottom is equipped with sewage pipe.
The liquid level sensor is used for: the detection liquid level for collecting sampling water in water tank.
In one embodiment, the liquid level sensor includes 2.
In one embodiment, the liquid level sensor is far transmission level meter.
In one embodiment, the water pump of collecting is specifically used for: receiving the level sensing that the far transmission level meter is sent
Signal, according to the level sensing signal automatic running or stopping.
In one embodiment, the level sensing signal includes that the first level sensing signal and the second level sensing are believed
Number, wherein the first level sensing signal indicates that the liquid level of sampling water in the collection water tank is more than default high liquid level value, the second liquid
Position transducing signal indicates the liquid level of sampling water in the collection water tank lower than preset liquid level value；
The collection water pump is specifically used for: when receiving the first level sensing signal, automatic running；Receiving second
It is automatically stopped when level sensing signal.
In one embodiment, further includes: monitor controller, respectively with it is described collection water tank in liquid level sensor and
The collection water pump connection；
The monitor controller is used for: when receiving the first level sensing signal that the far transmission level meter is sent,
The collection water pump automatic running is controlled according to the first level sensing signal；Receiving what the far transmission level meter was sent
When the second level sensing signal, the collection water pump is controlled according to the second level sensing signal and is automatically stopped.
In one embodiment, further includes: control valve is installed between the collection water tank and the collection water pump,
Between the collection water pump and subsidiary engine cooling water tank.
In the utility model embodiment, by collecting water tank and collecting the water pump sampling water that acquires steam and water sampling ap paratus
It has been pumped into subsidiary engine cooling water tank, sampling water is not discharged into trench, sampling water can have been made full use of in this way, be conducive to section
It can consumption reduction and environmental protection.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of traditional steam and water sampling ap paratus structural schematic diagram provided by the embodiment of the utility model；
Wherein, 1- condensed water water sample；2- oxygen-eliminating device entrance water sample；3- oxygen-eliminating device exports water sample；4- starts separator vapour side
Water sample；5- economizer exit water sample；6- saturated vapor water sample；7- superheated steam water sample；8- reheated steam water sample；9- generator
Cooling water；10- enclosed cooling water；11- high-pressure heater is hydrophobic；12- low-pressure heater is hydrophobic；13- steam air heater is hydrophobic；14-O2
Mass concentration table；15- hydrogen conductivity table；16- is than conductivity table；17-PH table；18-Na table； 19-Si02Table；20- manually takes
Sample；21- trench.
Fig. 2 is a kind of thermal power plant system for recycling sample water structural schematic diagram provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
With making constant progress for power technology, power plant steam-water On-line monitor is horizontal and automatization level is continuously improved,
Fizzy mineral water probe tube has realized centralized arrangement, makes it possible the recycling of steam and water sampling ap paratus sample water.Meanwhile with
Industrialized development, water resource are increasingly in short supply, and the environmental consciousness of people gradually increases, the sample water low to salt content, water quality is good into
It is imperative that row recycles.The water sample that the water sample and manual sampling point that in-line meter needs need, it is final to be all discharged into ground
In ditch, the significant wastage of water sample (demineralized water) is caused, energy-saving in order to achieve the purpose that, the utility model proposes one kind
Thermal power plant system for recycling sample water, as shown in Fig. 2, the system includes: to collect water tank 22, collect water pump 23 and subsidiary engine cooling
Water tank 24；
Wherein, the collection water tank 22 can be connect by pipeline with steam and water sampling ap paratus 25；The collection water tank 22 is logical
Piping is connect with the collection water pump 23, and the collection water pump 23 is connect by pipeline with subsidiary engine cooling water tank 24；
The collection water tank 22 is used for: from 26 collecting and sampling water of steam and water sampling ap paratus 25 or manual sampling point；
The collection water pump 23 is used for: sampling water is pumped into the subsidiary engine cooling water tank 24 from the collection water tank 22.
When it is implemented, sampling water joined micro medicament when by instrument analysis, and when collecting, directly with
Air contact, dissolved oxygen become larger, and salt water quality is made to be deteriorated.Therefore, select a suitable sample water containment system especially heavy
It wants, which is drawn back condenser hotwell with negative pressure by part design, but has ignored the safety of entire condensate system.One
Aspect, the system failure or leakage can destroy condenser vacuum, and the sample water on the other hand adding medicine is likely to result in condensed water
The corrosion of system, third, sample water-soluble oxygen is big, can increase the power output of vacuum pump, not energy saving enough.In order to avoid being given after the recycling of sample water
Containment system brings insecurity factor, and the utility model spy selecting system is simple, to the lower subsidiary engine cooling water system of water quality requirement
(subsidiary engine cooling water tank 24) is united as containment system, beats the sample water of recycling by centrifugal pump (collecting water pump 23) cooling to subsidiary engine
In water tank 24, so as to avoid the waste of water sample, rate of water make-up also is added for subsidiary engine cooling water, reaches the mesh for environmental protection of saving water and energy
's.
When it is implemented, as shown in Fig. 2, the collection water tank 22 of the utility model design can be 2 meters long, 1 meter wide, height
0.5 meter, overflow pipe is arranged in the chest that volume is 1 cubic metre at the top of it, and sewage pipe is arranged in its bottom, collects in water tank 22
All components be all made of stainless steel material, avoid collect water tank corrosion after pollute water quality.Overflow pipe is usually to keep one
Determine liquid level and exclude the device of surplus liquid rapidly, is chiefly used in needing warning in time in the device of water level.Since it is desired that warning
While exclude extra liquid in time, so there is certain requirement to caliber, if using undesirable caliber
It is possible that serious consequence.For the unit run, can be placed on suitably with adaptation to local conditions by water tank 22 is collected
Position, if condition limitation can will collect the smaller of waterbox design.
In addition, collecting water tank 22 in order to detect the liquid level for collecting sampling water in water tank and being equipped with liquid level sensor, quantity can
To be 2, one is mounted on the lower part for collecting water tank 22, and for measuring low level liquid level, one is mounted on the upper of collection water tank 22
Portion, for measuring high-order liquid level.Specifically, liquid level sensor can use far transmission level meter, far transmission level meter mainly by ontology,
Magnetic float, written instructions device, sensor, transmitter composition, magnetic float are gone up and down with liquid level, so that sensor internal resistance value is changed, are led to
It crosses transmitter and exports the change transitions of resistance value at 4~20mADC normalized current, to realize to the remote aobvious of liquid level
Show, control or PID is adjusted, its advantage is that: measurement accuracy is high, and structure is simple, easy for installation.
When it is implemented, the utility model is provided with liquid level limit value: default high liquid level value (i.e. highest limit value) and presetting low
Level value (i.e. minimum limit value).When far transmission level meter detects that the liquid level for collecting sampling water in water tank is more than highest limit value, meeting
A first level sensing signal is generated, the first level sensing letter that the far transmission level meter is sent can be received by collecting water pump at this time
Number, water pump is collected according to the first level sensing signal and determines starting operation, sampling water is pumped into from the collection water tank described
Subsidiary engine cooling water tank.When far transmission level meter detects the liquid level for collecting sampling water in water tank lower than minimum limit value, one can be generated
A second level sensing signal, the second level sensing signal that the far transmission level meter is sent can be received by collecting water pump at this time, be received
Water collecting pump determines out of service according to the second level sensing signal, is no longer pumped into sampling water from the collection water tank described auxiliary
Machine cooling water tank.Specifically, default high liquid level value (i.e. highest limit value) may be set to 0.4 meter, that is, collect high water tank >=
At 0.4 meter, water pump automatic running is collected, turns water to subsidiary engine cooling water tank；Preset liquid level value (i.e. minimum limit value) can be set
It is 0.1 meter, that is, when collection high water tank≤0.1 meter, collects water pump and be automatically stopped.May be implemented by above-mentioned movement be
The automatic running of system.
When it is implemented, the thermal power plant system for recycling sample water can also include: monitor controller, respectively with institute
State liquid level sensor and the collection water pump 23 connection collected in water tank 22.Wherein, monitor controller is used for: being received
When the first level sensing signal that the far transmission level meter is sent, the collection water is controlled according to the first level sensing signal
Pump automatic running；When receiving the second level sensing signal that the far transmission level meter is sent, passed according to second liquid level
Sense signal controls the collection water pump and is automatically stopped.Whole system teletransmission to specialty chemical DCS picture, by operations staff reality
When monitor, it is safe and reliable to operation, economical, environmentally friendly.
When it is implemented, as shown in Figure 2, which can also include: control valve, peace
Loaded between the collection water tank and the collection water pump, between the collection water pump and subsidiary engine cooling water tank.Work as remote liquid level
When meter detects that the liquid level for collecting sampling water in water tank is more than highest limit value, control valve can be opened, so that collecting water pump 23 can
Sampling water to be pumped into the subsidiary engine cooling water tank from the collection water tank；It is collected in water tank when far transmission level meter detects
When the liquid level of sampling water is lower than minimum limit value, control valve can be closed, and prevent to collect water pump 23 for sampling water from the collection water
It is pumped into case in the subsidiary engine cooling water tank.
Currently, the water and steam sampling system of large-sized unit generally has 13 water samples, each water sample is divided into in-line meter and manually takes
Sample two parts, every part is sent by a root canal road to user, flow 500-700ml/min, then the water flow that every root canal is daily
Are as follows: 0.5/0.7*60*24=0.72m3/1m3, 13 water samples, 26 water sample pipelines, daily water is 18.72-26m3, use
The system of the proposition of the utility model recycles these water, can save about 5000 tons of demineralized water amount year, reach ring of saving water and energy
The purpose of guarantor.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of thermal power plant system for recycling sample water characterized by comprising it is cold to collect water tank, collection water pump and subsidiary engine
But water tank；
Wherein, the collection water tank is connect by pipeline with the collection water pump, and the collection water pump is cold by pipeline and subsidiary engine
But water tank connects；
The collection water tank is used for: collecting sampling water from steam and water sampling ap paratus or manual sampling point；
The collection water pump is used for: sampling water is pumped into the subsidiary engine cooling water tank from the collection water tank.
2. thermal power plant system for recycling sample water as described in claim 1, which is characterized in that the collection tank top peace
Equipped with overflow pipe.
3. thermal power plant system for recycling sample water as described in claim 1, which is characterized in that the collection water tank bottom peace
Equipped with sewage pipe.
4. thermal power plant system for recycling sample water as described in claim 1, which is characterized in that installed in the collection water tank
There is liquid level sensor；
The liquid level sensor is used for: the detection liquid level for collecting sampling water in water tank.
5. thermal power plant system for recycling sample water as claimed in claim 4, which is characterized in that the liquid level sensor includes
2.
6. thermal power plant system for recycling sample water as described in claim 4 or 5, which is characterized in that the liquid level sensor
For far transmission level meter.
7. thermal power plant system for recycling sample water as claimed in claim 6, which is characterized in that the collection water pump is specifically used
In: the level sensing signal of the far transmission level meter transmission is received, according to the level sensing signal automatic running or stopping.
8. thermal power plant system for recycling sample water as claimed in claim 7, which is characterized in that the level sensing signal packet
Include the first level sensing signal and the second level sensing signal, wherein the first level sensing signal indicates in the collection water tank
The liquid level of sampling water is more than default high liquid level value, and the second level sensing signal indicates that the liquid level of sampling water in the collection water tank is low
In preset liquid level value；
The collection water pump is specifically used for: when receiving the first level sensing signal, automatic running；Receiving the second liquid level
It is automatically stopped when transducing signal.
9. thermal power plant system for recycling sample water as claimed in claim 8, which is characterized in that further include: monitoring control dress
It sets, is connect respectively with the liquid level sensor collected in water tank and the collection water pump；
The monitor controller is used for: when receiving the first level sensing signal that the far transmission level meter is sent, according to
The first level sensing signal controls the collection water pump automatic running；Receiving the second of the far transmission level meter transmission
When level sensing signal, the collection water pump is controlled according to the second level sensing signal and is automatically stopped.
10. thermal power plant system for recycling sample water as described in claim 1, which is characterized in that further include: control valve,
It is installed between the collection water tank and the collection water pump, between the collection water pump and subsidiary engine cooling water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821033127.3U CN208802845U (en) | 2018-07-02 | 2018-07-02 | Thermal power plant system for recycling sample water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821033127.3U CN208802845U (en) | 2018-07-02 | 2018-07-02 | Thermal power plant system for recycling sample water |
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| CN208802845U true CN208802845U (en) | 2019-04-30 |
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| CN201821033127.3U Active CN208802845U (en) | 2018-07-02 | 2018-07-02 | Thermal power plant system for recycling sample water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345308A (en) * | 2020-11-09 | 2021-02-09 | 西安热工研究院有限公司 | Intelligent chemical water working condition control system and control method based on in-situ sampling analysis |
| CN114739734A (en) * | 2022-04-11 | 2022-07-12 | 华能左权煤电有限责任公司 | Device of unit soda sampling frame recovery water |
-
2018
- 2018-07-02 CN CN201821033127.3U patent/CN208802845U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345308A (en) * | 2020-11-09 | 2021-02-09 | 西安热工研究院有限公司 | Intelligent chemical water working condition control system and control method based on in-situ sampling analysis |
| CN114739734A (en) * | 2022-04-11 | 2022-07-12 | 华能左权煤电有限责任公司 | Device of unit soda sampling frame recovery water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200811 Address after: 033000 Chengzhuang Town, Linxian County, Luliang City, Shanxi Province Co-patentee after: Beijing Jingneng Electric Power Co.,Ltd. Patentee after: SHANXI JINGNENG LVLIN ELECTRIC POWER Co.,Ltd. Address before: 033200 Lvliang City, Shanxi City, Linxian County City Zhuang Town Patentee before: SHANXI JINGNENG LVLIN ELECTRIC POWER Co.,Ltd. |
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| TR01 | Transfer of patent right |