CN207050496U - A kind of thermal power plant vacuumizes ammoniacal liquor recovery system - Google Patents
A kind of thermal power plant vacuumizes ammoniacal liquor recovery system Download PDFInfo
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- CN207050496U CN207050496U CN201720710419.5U CN201720710419U CN207050496U CN 207050496 U CN207050496 U CN 207050496U CN 201720710419 U CN201720710419 U CN 201720710419U CN 207050496 U CN207050496 U CN 207050496U
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- ammoniacal liquor
- water
- steam
- recovery
- vacuum pump
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Abstract
The utility model provides a kind of thermal power plant and vacuumizes ammoniacal liquor recovery system and method, wherein the system includes pumped vacuum systems and ammoniacal liquor recovery system, pumped vacuum systems includes heat exchanger, water ring vacuum pump, steam-water separator and condensate water charging system, heat exchanger is connected with the water ring vacuum pump, water ring vacuum pump is connected with steam-water separator, steam-water separator is connected with condensate water charging system, ammoniacal liquor recovery system includes PLC control system and ammoniacal liquor retracting device, steam-water separator is connected by infusion pipeline through the first magnetic valve with heat exchanger, it is connected through second solenoid valve with the ammoniacal liquor retracting device, infusion pipeline is provided with pH sensors, pH sensors, first magnetic valve, second solenoid valve is connected with PLC control system.Steam-water separator discharge pipe and Water-ring vacuum pump fluid discharge pipe are separated by the utility model, reduce the discharge capacity containing alkali waste water, the ammoniacal liquor purity of recovery is high, substantially increases the economic benefit and environmental benefit of thermal power plant's pumped vacuum systems.
Description
Technical field
The utility model belongs to thermal power plant's pumped vacuum systems technical field, more particularly to a kind of thermal power plant vacuumizes ammoniacal liquor and returned
Receipts system.
Background technology
Steam turbine of thermal power plant and condenser are in the process of running due to the imprecision of themselves structure, lacking in environment
Amount air will be entered in equipment, if not in time extracted incondensable gas out, may result in the pressure rise of device interior, right
The safety and efficiency of steam turbine can have a huge impact.
Pumped vacuum systems of the prior art is to extract the incondensable gas in condenser by water ring vacuum pump, and is led to
Over-heat-exchanger carries out cooling treatment, then carries out steam-water separation in steam-water separator, and the air in incondensable gas is from vapour
Separator upper air vent empties, and liquid is then the ammonia spirit containing high concentration ammoniacal liquor, and ammonia spirit is after y-type filter
Mix with Water-ring vacuum pump fluid, after Water-ring vacuum pump work, discharged by System drainage completely.It is of the prior art to take out
Vacuum system, the ammoniacal liquor after condensate moisturizing, steam-water separator separation and Water-ring vacuum pump fluid are not classified, not only
The ammoniacal liquor of high-purity is drained, while improves the alkalescence of System drainage, adds the processing cost of System drainage.Therefore, need
Want a kind of economical and the feature of environmental protection pumped vacuum systems ammoniacal liquor recovery scheme.
Utility model content
In order to solve the above technical problems, the purpose of this utility model, which is to provide a kind of thermal power plant, vacuumizes ammoniacal liquor recovery system
System, realizes efficient, economic, the environmentally friendly operation of pumped vacuum systems.
The utility model provides a kind of thermal power plant and vacuumizes ammoniacal liquor recovery system, including pumped vacuum systems and ammoniacal liquor recovery
System, pumped vacuum systems include heat exchanger, water ring vacuum pump, steam-water separator and condensate water charging system, heat exchanger with
Water ring vacuum pump is connected, and water ring vacuum pump is connected with steam-water separator, and steam-water separator is connected with condensate water charging system, ammoniacal liquor
Recovery system includes PLC control system and ammoniacal liquor retracting device, and steam-water separator is by infusion pipeline through the first magnetic valve and heat
Exchanger connects, and is connected through second solenoid valve with ammoniacal liquor retracting device, infusion pipeline is provided with pH sensors, pH sensors, first
Magnetic valve, second solenoid valve and PLC control system connect.
Further, steam-water separator is equipped with the first magnetic flap level gauge, and the first magnetic double level gauge is connected with liquid level
Sensor, liquid level sensor are connected with PLC control system, and condensate water charging system is connected by water pipe and steam-water separator
Connect, water pipe is equipped with the 3rd magnetic valve, and the 3rd magnetic valve is connected with PLC control system.
Further, ammoniacal liquor retracting device includes recovery ammoniacal liquor surge tank and recovery ammoniacal liquor storage tank, reclaims ammoniacal liquor surge tank
It is connected with second solenoid valve, recovery ammoniacal liquor surge tank is equipped with the second magnetic double level gauge, and the second magnetic double level gauge is connected with liquid
Level controller, fluid level controller are connected with PLC control system, and recovery ammoniacal liquor surge tank is successively through the 4th magnetic valve and recovery ammoniacal liquor
Delivery pump is connected with recovery ammoniacal liquor storage tank, and the 4th magnetic valve is connected with PLC control system.
Further, pumped vacuum systems also includes low-pressure turbine and condenser, and condenser top is equipped with and vacuumizes water seal
Valve, vacuumize water-sealed valve and be connected with air entry, air entry is true through pressure sensor, Pneumatic butterfly valve, pressure switch and water ring successively
Empty pump connection, water ring vacuum pump are connected with motor.
Further, steam-water separator top is equipped with check-valves and exhaust outlet, and water ring vacuum pump bottom is provided with discharge outlet.
Further, steam-water separator is provided with y-type filter.
By such scheme, by the thermal power plant vacuumize ammoniacal liquor recovery system can realize pumped vacuum systems it is efficient,
Economic, environmental protection operation, reclaims high concentration ammoniacal liquor, it is true that the system had both solved water ring from steam-water separator bottom liquid relief liquor
The problem of empty pump fluid System drainage alkalescence is high, ammoniacal liquor taste is pungent in working environment, while recyclable high-purity ammoniacal liquor, and
High-purity ammoniacal liquor is stored and is used for other techniques of thermal power plant, the usage amount of fresh ammoniacal liquor is reduced, has saved cost.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of thermal power plant of the utility model vacuumizes ammoniacal liquor recovery system.
Label in figure：
1- low-pressure turbines；2- condensers；3- condenser hotwells；4- water-sealed valves；5- air entries；6- pressure sensors；7-
Pneumatic butterfly valve；8- pressure switches；9- motor；10- water ring vacuum pumps；11- heat exchangers；12- steam-water separators；13- non-returns
Valve；The magnetic flap level gauges of 14- first；15- liquid level sensors；The magnetic valves of 16- the 3rd；17- condensate water charging systems；18-pH
The magnetic valves of sensor 19- first；20- second solenoid valves；21- reclaims ammoniacal liquor surge tank；The magnetic double level gauges of 22- second；23- liquid
Level controller；24-PLC control systems；The magnetic valves of 25- the 4th；26- reclaims ammoniacal liquor delivery pump；27- reclaims ammoniacal liquor storage tank；28-
Leakage.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
Join shown in Fig. 1, present embodiments provide a kind of thermal power plant and vacuumize ammoniacal liquor recovery system, including pumped vacuum systems and
Ammoniacal liquor recovery system, pumped vacuum systems include heat exchanger 11, water ring vacuum pump 10, steam-water separator 12 and condensate moisturizing system
System 17, heat exchanger 11 is connected with water ring vacuum pump 10, and water ring vacuum pump 10 is connected with steam-water separator 12, steam-water separator 12
It is connected with condensate water charging system 17, ammoniacal liquor recovery system includes PLC control system 24 and ammoniacal liquor retracting device, steam-water separator
12 are connected by infusion pipeline through the first magnetic valve 19 with heat exchanger 11, are connected through second solenoid valve 20 and ammoniacal liquor retracting device
Connect, infusion pipeline is provided with pH sensors 18, pH sensors 18, the first magnetic valve 19, second solenoid valve 20 and PLC control system 24
Connection.
The present embodiment vacuumizes ammoniacal liquor recovery system by this makes the working solution discharge opeing of water ring vacuum pump individually enter system
Draining, the liquid phase draining of steam-water separator are divided into two-way, connect all the way with Water-ring vacuum pump fluid, another way and recovery ammoniacal liquor
Surge tank connects, and is recycled to recovery ammoniacal liquor storage tank through magnetic valve, recovery recovery ammoniacal liquor delivery pump, substantially increases thermal power plant and takes out
The economic benefit and environmental benefit of vacuum system.
In the present embodiment, steam-water separator 12 is equipped with the first magnetic flap level gauge, and the first magnetic double level gauge 14 connects
Liquid level sensor 15 is connected to, liquid level sensor 15 is connected with PLC control system 24, and condensate water charging system 17 passes through water pipe
It is connected with steam-water separator 12, water pipe is equipped with the 3rd magnetic valve 16, and the 3rd magnetic valve 16 is connected with PLC control system 24.
The adjust automatically of steam-water separator water level inside can be realized by PLC control system.
In the present embodiment, ammoniacal liquor retracting device includes recovery ammoniacal liquor surge tank 21 and recovery ammoniacal liquor storage tank 27, reclaims ammonia
Liquid surge tank 21 is connected with second solenoid valve 20, and recovery ammoniacal liquor surge tank 21 is equipped with the second magnetic double level gauge 22, and the second magnetic turns over
Plate liquid level gauge 22 is connected with fluid level controller 23, and fluid level controller 23 is connected with PLC control system 24, recovery ammoniacal liquor surge tank 21
It is connected successively through the 4th magnetic valve 25 and recovery ammoniacal liquor delivery pump 26 with recovery ammoniacal liquor storage tank 27, the 4th magnetic valve 25 and PLC is controlled
System 24 processed connects.The automatic recovery of ammoniacal liquor can be realized by the ammoniacal liquor retracting device.
In the present embodiment, pumped vacuum systems also includes low-pressure turbine and condenser, and condenser top is equipped with and vacuumized
Water-sealed valve, vacuumize water-sealed valve and be connected with air entry, air entry is successively through pressure sensor, Pneumatic butterfly valve, pressure switch and water
Ring vacuum pump connects, and water ring vacuum pump is connected with motor.Steam-water separator top is equipped with check-valves and exhaust outlet, water ring vacuum pump
Bottom is provided with discharge outlet.Steam-water separator is provided with y-type filter.
Steam-water separator discharge pipe and Water-ring vacuum pump fluid discharge pipe are separated by the present embodiment, and to carbonated drink
Separator liquid phase carries out separation of having ready conditions, and has reclaimed the ammoniacal liquor in steam-water separator liquid phase, reduces the discharge capacity containing alkali waste water,
The ammoniacal liquor purity of recovery is high, can be directly used for the operating modes such as pH value regulation that feed water, this method, which substantially increases thermal power plant and vacuumized, is
The economic benefit and environmental benefit of system.
The thermal power plant vacuumizes ammoniacal liquor recovery system and extracts condenser top non-condensing gas using water ring vacuum pump first,
Then gas-liquid separation is carried out by steam-water separator, gas phase empties through steam-water separator upper check valve exhaust outlet, and liquid phase is through Y types
After filter, a part continues back at water ring vacuum pump and serves as working solution, by returning after a part of recovered ammoniacal liquor surge tank
Withdraw ammoniacal liquor delivery pump and be delivered to recovery ammoniacal liquor storage tank, the ammoniacal liquor in the liquid phase discharge of recovery steam-water separator specifically includes：
Thermal power plant's low-pressure turbine 1 is vented to condenser 2 and cooled down, and the not concretive gas being mixed into vacuum system gathers
Its signal is transferred to PLC control system 24, PLC controls system by collection in the top of condenser 2, the pressure sensor 6 of pumped vacuum systems
24 feedback signals of uniting control the unlatching of Pneumatic butterfly valve 7, pressure switch 8, and at the same time the motor 9 of water ring vacuum pump 10 starts,
Not concretive gas is successively through water-sealed valve 4, air entry 5, pressure sensor 6, Pneumatic butterfly valve 7, pressure switch 8, true into water ring
Empty pump 10, subsequently into steam-water separator 12 steam-water separation is carried out, the gas phase after steam-water separator is through being mounted in steam-water separator 12
Check-valves 13 and the exhaust outlet emptying on top, steam-water separator 12 are equipped with the first magnetic flap level gauge 14, the first magnetic flap
Liquid level gauge 14 is connected with liquid level sensor 15；Condensate water charging system 17 reaches PLC control system 24 through liquid level sensor 15
Signal controls the automatic liquid level adjustment carried out inside steam-water separator 12 of the opening and closing of the 3rd magnetic valve 16；The work of water ring vacuum pump 10
Make liquid after heat exchanger 11 carries out heat exchange, System drainage pipeline is expelled to by the bottom of water ring vacuum pump 10.
The bottom liquid of steam-water separator 12, after y-type filter filters, online pH measure is carried out, pH measurement results reach
PLC control system 24, works as pH<9.0 or the liquid level of steam-water separator 12 when being unsatisfactory for discharge opeing condition, PLC control system 24 is closed
Magnetic valve 20 and the first magnetic valve 19 is opened simultaneously, steam-water separator discharge opeing reenters water ring vacuum pump after heat exchanger 11
10 serve as its working solution；Work as pH>9.0 and the liquid level of steam-water separator 12 when meeting discharge opeing condition, PLC control system 24 closes the
One magnetic valve 19 and second solenoid valve 20 is opened simultaneously, the ammoniacal liquor being recovered enters recovery recovery ammoniacal liquor surge tank 21, reclaims back
The recovery ammoniacal liquor in ammoniacal liquor surge tank 21 is received under the signal control of fluid level controller 23, is reclaimed through the 4th magnetic valve 25 and recovery
Ammoniacal liquor delivery pump 26 enters recovery ammoniacal liquor storage tank 27, its pH of the ammoniacal liquor being recovered>9.0, ammoniacal liquor concentration>0.5mg/L.
The thermal power plant that the present embodiment provides vacuumizes ammoniacal liquor recovery system, technique effect specific as follows：
1) high concentration ammoniacal liquor can be reclaimed, and is stored by reclaiming recovery ammoniacal liquor delivery pump to recovery ammoniacal liquor storage tank, can be used
In other techniques of thermal power plant.
2) the problems such as water ring vacuum pump system draining alkalescence is high, ammoniacal liquor taste is pungent is reduced.
3) after using the system, recyclable high-purity ammoniacal liquor, the ammoniacal liquor being recovered can be used for other water chemistry works of thermal power plant
Skill, reduce the usage amount of the fresh ammoniacal liquor of thermal power plant.
4) the problem of water ring vacuum pump discharges alkaline waste water into System drainage is reduced, reduces the processing of System drainage
Cost.
5) the system has given full play to multi-purpose water, the water saving principle of sub-prime recovery, the warp to improving thermoelectricity generating set
Ji property and the feature of environmental protection are significant.
Described above is only preferred embodiment of the present utility model, is not limited to the utility model, it is noted that
For those skilled in the art, on the premise of the utility model technical principle is not departed from, can also do
Go out some improvement and modification, these improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of thermal power plant vacuumizes ammoniacal liquor recovery system, it is characterised in that including pumped vacuum systems and ammoniacal liquor recovery system, institute
Stating pumped vacuum systems includes heat exchanger, water ring vacuum pump, steam-water separator and condensate water charging system, the heat exchanger with
The water ring vacuum pump connection, the water ring vacuum pump are connected with the steam-water separator, and the steam-water separator coagulates with described
Water charging system connection is born water, the ammoniacal liquor recovery system includes PLC control system and ammoniacal liquor retracting device, the steam-water separator
It is connected with the heat exchanger through the first magnetic valve by infusion pipeline, is connected through second solenoid valve and the ammoniacal liquor retracting device
Connect, the infusion pipeline is provided with pH sensors, and the pH sensors, the first magnetic valve, second solenoid valve and PLC controls are
System connection.
2. a kind of thermal power plant according to claim 1 vacuumizes ammoniacal liquor recovery system, it is characterised in that the steam-water separation
Device is equipped with the first magnetic flap level gauge, and first magnetic double level gauge is connected with liquid level sensor, the liquid level sensor
It is connected with the PLC control system, the condensate water charging system is connected by water pipe with the steam-water separator, described
Water pipe is equipped with the 3rd magnetic valve, and the 3rd magnetic valve is connected with the PLC control system.
3. a kind of thermal power plant according to claim 1 or 2 vacuumizes ammoniacal liquor recovery system, it is characterised in that the ammoniacal liquor
Retracting device includes recovery ammoniacal liquor surge tank and recovery ammoniacal liquor storage tank, and recovery ammoniacal liquor surge tank is connected with the second solenoid valve,
The recovery ammoniacal liquor surge tank is equipped with the second magnetic double level gauge, and second magnetic double level gauge is connected with fluid level controller,
The fluid level controller is connected with the PLC control system, and the recovery ammoniacal liquor surge tank is successively through the 4th magnetic valve and recovery
Ammoniacal liquor delivery pump is connected with the recovery ammoniacal liquor storage tank, and the 4th magnetic valve is connected with the PLC control system.
4. a kind of thermal power plant according to claim 3 vacuumizes ammoniacal liquor recovery system, it is characterised in that described vacuumize be
System also includes low-pressure turbine and condenser, and the condenser top connects equipped with water-sealed valve, the water-sealed valve that vacuumizes is vacuumized
Air entry is connected to, the air entry is connected through pressure sensor, Pneumatic butterfly valve, pressure switch with the water ring vacuum pump successively,
The water ring vacuum pump is connected with motor.
5. a kind of thermal power plant according to claim 4 vacuumizes ammoniacal liquor recovery system, it is characterised in that the steam-water separation
Device top is equipped with check-valves and exhaust outlet, and the water ring vacuum pump bottom is provided with discharge outlet.
6. a kind of thermal power plant according to claim 5 vacuumizes ammoniacal liquor recovery system, it is characterised in that the steam-water separation
Device is provided with y-type filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720710419.5U CN207050496U (en) | 2017-06-19 | 2017-06-19 | A kind of thermal power plant vacuumizes ammoniacal liquor recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720710419.5U CN207050496U (en) | 2017-06-19 | 2017-06-19 | A kind of thermal power plant vacuumizes ammoniacal liquor recovery system |
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| CN207050496U true CN207050496U (en) | 2018-02-27 |
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| CN201720710419.5U Expired - Fee Related CN207050496U (en) | 2017-06-19 | 2017-06-19 | A kind of thermal power plant vacuumizes ammoniacal liquor recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179007A (en) * | 2017-06-19 | 2017-09-19 | 大唐东北电力试验研究所有限公司 | A kind of thermal power plant vacuumizes ammoniacal liquor recovery system and method |
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2017
- 2017-06-19 CN CN201720710419.5U patent/CN207050496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179007A (en) * | 2017-06-19 | 2017-09-19 | 大唐东北电力试验研究所有限公司 | A kind of thermal power plant vacuumizes ammoniacal liquor recovery system and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20180619 |