CN203772053U - Multistage steam ejector vacuum-pumping system of double backpressure condensers - Google Patents
Multistage steam ejector vacuum-pumping system of double backpressure condensers Download PDFInfo
- Publication number
- CN203772053U CN203772053U CN201420174151.4U CN201420174151U CN203772053U CN 203772053 U CN203772053 U CN 203772053U CN 201420174151 U CN201420174151 U CN 201420174151U CN 203772053 U CN203772053 U CN 203772053U
- Authority
- CN
- China
- Prior art keywords
- condenser
- steam
- jet ejector
- steam jet
- entrance
- 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.)
- Expired - Lifetime
Links
- 238000005086 pumping Methods 0.000 title abstract description 4
- 239000000498 cooling water Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000003584 silencer Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000003595 mist Substances 0.000 description 8
- 239000012224 working solution Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses a multistage steam ejector vacuum-pumping system of double backpressure condensers. The system comprises a steam turbine (1), the first condenser (2), the second condenser (3), a low-pressure condenser hot well (4), a silencer (10), a first steam ejector (11), a second steam ejector (12), a third steam ejector (13), a fourth steam ejector (14), a first steam condenser (15), a second steam condenser (16), a plurality of controlling valves and a pipeline, wherein the controlling valves and the pipeline are arranged between the parts. According to the system, one starting steam ejector is adopted, two steam ejectors are adopted for pumping on the high-pressure side and the low-pressure side respectively, high-pressure steam is adopted as power, output is stable, the best vacuum of the condensers can be maintained, and the whole system is made to run stably for a long time. High-temperature steam is adopted as power of the steam ejectors of the system, the steam ejectors are static devices, auxiliary power is not needed, and maintaining cost can also be reduced.
Description
Technical field
The utility model relates to the evacuation system for steam condenser in a kind of power plant, especially relates to a kind of double pressure condenser multistage steam injector pumped vacuum systems.
Background technology
Condenser is one of most important equipment in power plant, and back pressure of condenser has material impact to the economy of steam turbine power generation unit operation, and the quality of condensing steam turbine generator group condenser vacuum, directly affects the economical operation of power plant steam turbine.The factor that affects condenser vacuum is a lot, comprises the system layout relevant to condenser vacuum, and this design arrangement affects the quality of condenser vacuum.A plurality of condensers have the Specific Heat Consumption For Steam Turbine Unit of reduction, reduce film-cooled heat and cooling water inflow, improve the advantages such as condenser layout, the back pressure value of each condenser is under the conditions such as given Steam Turbine thermodynamic property, circulating water temperature, quantity of circulating water, heat-exchange system, by Technological Economy, relatively determines.When actual motion, the best back pressure value of each condenser is also to change at any time along with factors such as unit load, circulating water temperature and the water yield, condenser clean-up performances, and best back pressure value will be calculated just and can be drawn by the associated hot force parameter to steam turbine and condenser.
At present, the condenser of most units is two back pressure designs, and Fig. 1 has shown a kind of two back pressure designs of prior art.Wherein steam bleeding system is that the bleed steam pipework of high pressure condenser 201, low pressure condenser 101 is together in parallel and is connected by same female Guan Yusan vavuum pump 801 in parallel.Like this, all pressures effect of female pipe can make the extraction steam pipe resistance of high pressure condenser 201 and low pressure condenser 101 be tending towards equal.Due to the poor reason of condenser pressure, the bleed steam pipework amount of drawing gas that must be high pressure condenser 201 increases, the bleed steam pipework amount of drawing gas of low pressure condenser 101 is limited, article two, bleed steam pipework resistance reaches a poised state, therefore,, in the good situation of vacuum tightness, the pressure of high pressure condenser 201 and low pressure condenser 101 can be basic identical, its pressure is close to the pressure of high pressure condenser 201, the two back pressure operations that cannot realize ideal.For addressing this problem, Fig. 2 has shown two back pressure designs of another kind of prior art, wherein part of generating units is connected the exhaust pipeline 301,401 of high pressure condenser 201 and low pressure condenser 101 respectively with vavuum pump 801, although realize so two back pressure operations of unit, but there are following three problems: one, the security of unit operation declines, general three vavuum pumps of the above machine assembly of 600MW, the operation of 1-2 platform vavuum pump, all the other are standby, when a vavuum pump is connected with a condenser, when vacuum pump failure, without stand-by pump, expansion easily causes the accident; Two, the economy of unit can not keep optimum state, when circulating water temperature is lower, and the low pressure condenser vacuum that can overstep the extreme limit, high pressure condenser vacuum is on the low side, and both sides all can not be moved under optimum vacuum.Three, the sharing of load between vavuum pump is dumb, and the corresponding condenser of vavuum pump, when the vacuum power that pumps declines or when a certain side Tightness Property of Condenser Vacuum System is poor, load cannot be transferred to other vavuum pump, also can cause the rising of condenser pressure.
Also have some to comprise the power plant of 600MW and above condensing steam turbine generator group, the double pressure condenser that its condensing steam turbine generator group adopts, has single female pipe double suction vavuum pump pumped vacuum systems or two female pipe single suction vavuum pump pumped vacuum systems conventionally.The using electricity wisely of single female pipe double suction vavuum pump pumped vacuum systems energy, but the Average True sky of condenser is had a certain impact; Two female pipe single suction vavuum pump pumped vacuum systems do not affect the average vacuum of condenser, but its system complex adopts four vavuum pumps, must move by two vavuum pumps simultaneously, increases investment and electricity cost.In order to overcome this problem, prior art also provides a kind of pumped vacuum systems of double pressure condenser, and two mothers manage the pumped vacuum systems of double suction vavuum pumps, and this is to the pumped vacuum systems that two female pipes are set between water ring vacuum pump at condenser.But adopt water ring vacuum pump to have shortcoming below as pumping equipment:
One, water ring vacuum pump is usingd water as working solution, the temperature of working solution is subject to the control of cooling water (recirculated water or beginning water), cooling water temperature is subject to weather influence, variations in temperature is larger, summer particularly, circulating water temperature may reach degree more than 30, add certain heat transfer temperature difference, working solution temperature likely reaches degree more than 40, under vacuum, a large amount of vaporizations of working solution cause vavuum pump to cavitate and produce high noisy, exhaust capacity declines, and cannot maintain the minimum vacuum of condenser, has had a strong impact on economy and the safe operation of unit.
Two, water-ring vacuum pump power consumption is high, two water-ring vacuum pumps of normal need operation.
Three, water-ring vacuum pump is moving equipment, and plant maintenance amount is larger.
Therefore, a kind of two back pressure designs of condenser need to be proposed, to address the above problem.
Utility model content
The utility model provides a kind of double pressure condenser multistage steam injector pumped vacuum systems, and it adopts and two steam jet ejectors is set high and low pressure side is aspirated respectively, can address the above problem.
The utility model discloses a kind of double pressure condenser multistage steam injector double pressure condenser multistage steam injector pumped vacuum systems, described pumped vacuum systems comprises: steam turbine, the first condenser, the second condenser, low pressure condenser hotwell, muffler, the first steam jet ejector, the second steam jet ejector, the 3rd steam jet ejector, the 4th steam jet ejector, the first stram condenser, the second stram condenser, and be arranged at a plurality of control valves and the pipeline between above-mentioned all parts;
Wherein:
The outlet of steam turbine is connected with the entrance of the second condenser with the first condenser simultaneously;
The first entrance of the first steam jet ejector connects power steam source of stable pressure; The second entrance of the first steam jet ejector receives the gas from the first condenser and the second condenser; The first outlet joint noise reduction device of the first steam jet ejector;
The first entrance of the second steam jet ejector connects power steam source of stable pressure; The second entrance of the second steam jet ejector connects the first condenser; The first outlet of the second steam jet ejector connects the first stram condenser;
The first entrance of the 3rd steam jet ejector connects power steam source of stable pressure, and the second entrance of the 3rd steam jet ejector connects the second condenser, and the first outlet of the 3rd steam jet ejector connects the first stram condenser;
The first entrance of the 4th steam jet ejector connects power steam source of stable pressure; The second entrance of the 4th steam jet ejector connects the first stram condenser, and the first outlet of the 4th steam jet ejector is connected to the second stram condenser;
The first entrance of the first stram condenser connects cooling water inlet, and the first outlet of the first stram condenser connects low pressure condenser hotwell;
The first outlet of the second stram condenser connects low pressure condenser hotwell, and the second outlet of the second stram condenser is coolant outlet, and the 3rd outlet of the second stram condenser connects atmosphere.
According to double pressure condenser multistage steam injector pumped vacuum systems described in the utility model, wherein:
Between the first condenser and the second condenser outlet side pipeline, be provided with the exhaust pipe of high-low pressure condenser, on this exhaust pipe, be provided with the exhaust pipe communicating valve of high-low pressure condenser.
According to double pressure condenser multistage steam injector pumped vacuum systems described in the utility model, wherein:
Between the first condenser and the second entrance of the first steam jet ejector, be provided with the air entry valve of the first steam jet ejector;
Between the first condenser and the second entrance of the second steam jet ejector, be provided with the air entry valve of the second steam jet ejector;
Between the second condenser and the second entrance of the 3rd steam jet ejector, be provided with the air entry valve of the 3rd steam jet ejector.
According to double pressure condenser multistage steam injector pumped vacuum systems described in the utility model, wherein:
Between power steam source of stable pressure and the first entrance of the first steam jet ejector, be provided with the power steam inlet valve of the first steam jet ejector;
Between power steam source of stable pressure and the first entrance of the second steam jet ejector, be provided with the power steam inlet valve of the second steam jet ejector;
Between power steam source of stable pressure and the first entrance of the 3rd steam jet ejector, be provided with the power steam inlet valve of the 3rd steam jet ejector;
Between power steam source of stable pressure and the first entrance of the 4th steam jet ejector, be provided with the power steam inlet valve of the 4th steam jet ejector.
According to double pressure condenser multistage steam injector pumped vacuum systems described in the utility model, wherein:
Described pumped vacuum systems also comprises and is arranged on power steam source of stable pressure (6) power steam entrance isolating valve before.
According to double pressure condenser multistage steam injector pumped vacuum systems described in the utility model, wherein:
Between the first stram condenser and low pressure condenser hotwell, be provided with the condensate liquid tapping valve of the first stram condenser;
Between the second stram condenser and low pressure condenser hotwell, be provided with the condensate liquid tapping valve of the second stram condenser.
Double pressure condenser multistage steam injector pumped vacuum systems of the present utility model, adopts high-pressure side steam jet ejector and low-pressure side steam jet ejector respectively to high back pressure side condenser and the suction of low back pressure side condenser, maintains the no minimum of two condensers.The public backing condenser of high-pressure side steam jet ejector and low-pressure side steam jet ejector.During condenser forvacuum, adopt and start steam jet ejector, without water ring vacuum pump.Height back pressure side arranges communicating valve, startup stage open isolating valve, by one, start two condensers of sprayer pumps.When condenser normally moves, close communicating valve, two condensers of time height back pressure are worked respectively, are independent of each other.Adopt power steam source of stable pressure, source of stable pressure system is by pressure transmitter, admission control valve, and pressure surge tank forms.Realize and stablize inlet pressure, for steam jet ejector improves stable power, assurance steam jet ejector is stable exerts oneself.In addition, pressure buffer pot bottom is provided with automatic steam trap, avoids the aqueous water being mingled with in power steam to enter steam jet ejector and lock bad power jet.
Double pressure condenser multistage steam injector pumped vacuum systems of the present utility model, owing to having adopted two steam jet ejectors to aspirate respectively high and low pressure side, employing high-temperature steam is power, exert oneself stable, can maintain the optimum vacuum of condenser, can, as water ring vacuum pump, not exert oneself and change along with the variation of extraneous water temperature.It is power that its steam jet ejector adopts high-temperature steam, without station service.Because steam jet ejector is static equipment, be therefore almost " zero dimension is protected ", can reduce maintenance cost.
Accompanying drawing explanation
To doing according to the specific embodiment of design of the present utility model further, explain in detail below with reference to the accompanying drawings, wherein:
Fig. 1 has shown a kind of two back pressure designs of prior art;
Fig. 2 has shown two back pressure designs of another kind of prior art;
Fig. 3 shows according to the design of double pressure condenser multistage steam injector pumped vacuum systems of the present utility model.
Reference numeral annotation in figure is as follows:
1, steam turbine
2, the first condenser
3, the second condenser
4, low pressure condenser hotwell
5, power steam entrance isolating valve
6, power steam source of stable pressure
7, the power steam inlet valve of the 3rd steam jet ejector
8, the power steam inlet valve of the second steam jet ejector
9, the power steam inlet valve of the first steam jet ejector
10, muffler
11, the first steam jet ejector
111, the first entrance of the first steam jet ejector
112, the second entrance of the first steam jet ejector
113, first of the first steam jet ejector the outlet
12, the second steam jet ejector
121, the first entrance of the second steam jet ejector
122, the second entrance of the second steam jet ejector
123, first of the second steam jet ejector the outlet
13, the 3rd steam jet ejector
131, the first entrance of the 3rd steam jet ejector
132, the second entrance of the 3rd steam jet ejector
133, first of the 3rd steam jet ejector the outlet
14, the 4th steam jet ejector
141, the first entrance of the 4th steam jet ejector
142, the second entrance of the 4th steam jet ejector
143, first of the 4th steam jet ejector the outlet
15, the first stram condenser
151, the first entrance of the first stram condenser
152, first of the first stram condenser the outlet
16, the second stram condenser
161, first of the second stram condenser the outlet
162, second of the second stram condenser the outlet
163, the 3rd of the second stram condenser the outlet
164, the first entrance of the second stram condenser
17, the power steam inlet valve of the 4th steam jet ejector
18, the condensate liquid tapping valve of the first stram condenser
19, the exhaust pipe communicating valve of high-low pressure condenser
20, the air entry valve of the first steam jet ejector
21, the air entry valve of the second steam jet ejector
22, the air entry valve of the 3rd steam jet ejector
23, the condensate liquid tapping valve of the second stram condenser
The specific embodiment
Below in conjunction with the application's accompanying drawing, in the situation that conceiving with reference to the utility model, the specific embodiment is made an explanation.
With reference to figure 3, in double pressure condenser multistage steam injector pumped vacuum systems of the present utility model, the outlet of steam turbine 1 is connected with the entrance of the second condenser 3 with the first condenser 2 simultaneously.The first condenser, also referred to as high pressure condenser, the second condenser, also referred to as low pressure condenser.The first entrance 111 of the first steam jet ejector 11 connects power steam source of stable pressure 6; The gas that the second entrance 112 of the first steam jet ejector receives from the first condenser 2 and the second condenser 3; The first outlet 113 joint noise reduction devices 10 of the first steam jet ejector.The first entrance 121 of the second steam jet ejector 12, connects power steam source of stable pressure 6; .The second entrance 122 of the second steam jet ejector connects the first condenser 2; The first outlet 123 of the second steam jet ejector connects the first stram condenser 15.The first entrance 131 of the 3rd steam jet ejector 13, connects power steam source of stable pressure 6; The second entrance 132 of the 3rd steam jet ejector connects the second condenser 3; The first outlet 133 of the 3rd steam jet ejector connects the first stram condenser 15.The first entrance 141 of the 4th steam jet ejector 14, connects power steam source of stable pressure 6; The second entrance 142 of the 4th steam jet ejector connects the first stram condenser 15; The first outlet 143 of the 4th steam jet ejector is connected to the second stram condenser 16.The first entrance 151 of the first stram condenser 15 connects cooling water inlet, and the first outlet 152 of the first stram condenser connects low pressure condenser hotwell 4.The second outlet 162 that the first outlet 161 of the second stram condenser 16 connects low pressure condenser hotwell 4, the second stram condensers is coolant outlet, and the 3rd outlet 163 of the second stram condenser connects atmosphere.
Between the first condenser 2 and the outlet side pipeline of the second condenser 3, be provided with the exhaust pipe of high-low pressure condenser, on this exhaust pipe, be provided with the exhaust pipe communicating valve 19 of high-low pressure condenser.
Between the first condenser 2 and the second entrance 112 of the first steam jet ejector 11, be provided with the air entry valve 20 of the first steam jet ejector; Between the first condenser 2 and the second entrance 122 of the second steam jet ejector 12, be provided with the air entry valve 21 of the second steam jet ejector; Between the second condenser 3 and the second entrance 132 of the 3rd steam jet ejector 13, be provided with the air entry valve 22 of the 3rd steam jet ejector.
Between power steam source of stable pressure 6 and the first entrance 111 of the first steam jet ejector 11, be provided with the power steam inlet valve 9 of the first steam jet ejector; Between power steam source of stable pressure 6 and the first entrance 121 of the second steam jet ejector 12, be provided with the power steam inlet valve 8 of the second steam jet ejector; Between power steam source of stable pressure 6 and the first entrance 131 of the 3rd steam jet ejector 13, be provided with the power steam inlet valve 7 of the 3rd steam jet ejector; Between power steam source of stable pressure 6 and the first entrance 141 of the 4th steam jet ejector 14, be provided with the power steam inlet valve 17 of the 4th steam jet ejector.
Described pumped vacuum systems also comprises the power steam entrance isolating valve 5 being arranged on before power steam source of stable pressure 6.
Between the first stram condenser 15 and low pressure condenser hotwell 4, be provided with the condensate liquid tapping valve 18 of the first stram condenser; Between the second stram condenser 16 and low pressure condenser hotwell 4, be provided with the condensate liquid tapping valve 23 of the second stram condenser.
The operation of double pressure condenser multistage steam injector pumped vacuum systems of the present utility model is such, and the first steam jet ejector only puts into operation while setting up vacuum before unit commitment.When unit normally moves, second, third, the 4th steam jet ejector and first, second stram condenser move simultaneously, concrete condition is as follows:
(1), steam turbine 1 by acting after exhaust steam be discharged to the first condenser 2 and the second condenser 3, first, second condenser is by waste steam condensation, condensed fluid collection is to hot well.Remaining non-condensable gas need to be discharged by the steam jet ejector pumped vacuum systems arranging.
(2), the first steam jet ejector 11 operations: need the large quantity of air of the inside to discharge and set up vacuum environment before the first condenser 2 and the second condenser 3 systems put into operation, now need to move the first steam jet ejector 11 (claiming again to start steam jet ejector).Open the exhaust pipe communicating valve 19 of high-low pressure condenser, the air entry valve 20 of power steam inlet valve 9, the first steam jet ejectors of power steam entrance isolating valve 5, the first steam jet ejectors, other valve closings.The first steam jet ejector 11 and muffler 10 put into operation.Power steam enters the first steam jet ejector 11 by source of stable pressure 6 via the first entrance 111 of the first steam jet ejector, and the inwardly projecting orifice by the first steam jet ejector forms supersonic airstream and sets up the gas that the suction of inner vacuum environment enters first steam jet ejector the second entrance 112.First steam jet ejector the second entrance 112 connects the first condenser 2 and the second condenser 3, makes the air of two condensers constantly extract out and set up vacuum environment.The first steam jet ejector is discharged to muffler 10 by the first outlet 113 of the first steam jet ejector by mist group, is discharged to atmosphere after muffler noise-reducing again.After the forvacuum of the first steam jet ejector, steam turbine and two condensers put into operation, close the power steam inlet valve 9 of the first steam jet ejector, high and low pressure side exhaust pipe communicating valve 19, the air entry valve 20 of the first steam jet ejector, first steam jet ejector 11 of stopping transport.
(3), the second steam jet ejector operation: the power steam inlet valve 8 of opening the second steam jet ejector, the power steam inlet valve 7 of the 3rd steam jet ejector, the power steam inlet valve 17 of the 4th steam jet ejector, the air entry valve 21 of the second steam jet ejector, the air entry valve 22 of the 3rd steam jet ejector, the second steam jet ejector 12, the three steam jet ejector 13, the four steam jet ejectors 14 put into operation.
(4), power steam enters the second steam jet ejector 12 by source of stable pressure 6 via second steam jet ejector the first entrance 121, the inwardly projecting orifice by the second steam jet ejector forms supersonic airstream and sets up the gas that the suction of inner vacuum environment enters second steam jet ejector the second entrance 122.The second entrance 122 of the second steam jet ejector connects the first condenser 2, makes the not condensable gas of the first condenser 2 the insides constantly be drawn out of the vacuum that maintains the first condenser 2.The second steam jet ejector exports 123 by mist by first of the second steam jet ejector mist is discharged to the first stram condenser 15.
(5), the 3rd steam jet ejector operation: power steam enters the 3rd steam jet ejector 13 by source of stable pressure 6 via the first entrance 131 of the 3rd steam jet ejector, and the inwardly projecting orifice by the 3rd steam jet ejector forms supersonic airstream and sets up the gas that the suction of inner vacuum environment enters the 3rd steam jet ejector the second entrance 132.The 3rd steam jet ejector the second entrance 132 connects the second condenser 3, makes the not condensable gas of the second vapour device 3 the insides constantly be drawn out of the vacuum that maintains the second condenser 3.The 3rd steam jet ejector exports 133 by mist by first of the 3rd steam jet ejector and is discharged to the first stram condenser 15.
(6), the 4th steam jet ejector operation: power steam enters the 4th steam jet ejector 14 by source of stable pressure 6 via the 4th steam jet ejector the first entrance 141, sets up by the inwardly projecting orifice formation supersonic airstream of the 4th steam jet ejector the gas that the suction of inner vacuum environment enters the 4th steam jet ejector the second entrance 142.The 4th steam jet ejector the second entrance 142 connects the first stram condenser 15, the part non-condensable gas in condenser 15 is extracted out, and by the first outlet 143, mist is discharged to the second stram condenser 16.
(7), the first stram condenser 15 operations: cooling water enters the first stram condenser by cooling from the mist of the second steam jet ejector 12, the 3rd steam jet ejector 13 discharges by the first entrance 151 of the first stram condenser, condensed water is back to hot well 4 by the first outlet 152 of the first stram condenser, recycles.Remaining uncondensable mist, discharges by the second entrance 142 of the 4th steam jet ejector 14.
(8), the second stram condenser 16 operations: cooling water enters the second stram condenser by cooling from the mist of the 4th steam jet ejector 14 discharges by the first entrance 164 of the second stram condenser, condensed water is back to hot well 4 by the first outlet 161 of the second stram condenser, recycles.Remaining a small amount of uncondensable gas, the 3rd outlet 163 row's atmosphere, cooling water is discharged to cooling water system by the second outlet 162 of the second stram condenser.
When above-mentioned first steam jet ejector when operation, i.e. step (2), its advantage is: with starting steam jet ejector operation, rate of air sucked in required is large, and start-up time is short.
When above-mentioned second, third, the 4th steam jet ejector when operation, i.e. step (3), its advantage is:
1, separately suction of high-pressure side condenser and low-pressure side condenser, can maintain the high vacuum of two condensers, improves exerting oneself of condenser.
2, the ability vacuumizing improves, and condenser vacuum improves, and has reduced gross coal consumption rate.
3, safe, non-maintaining.Whole system no-rotary part, machinery-free wearing and tearing, the also operation steady in a long-term of exerting oneself of assurance system 100%.
4, former evacuation system for steam condenser need to move two water ring vacuum pumps, and every power of motor is 132kw.And two-stage exhaust of the present utility model adopts steam jet ejector system, without station service.Can be cost-saving in a large number.
It is evident that, those skilled in the art can make different modifications and variations to disclosed pumped vacuum systems.In the situation that consider description and the convention of pumped vacuum systems disclosed herein; those skilled in the art can obtain other embodiment apparently, such modification, change and other embodiment of obtaining still will be understood that and are included in protection domain of the present utility model.Be to be understood that, it is exemplary that description and embodiment are only considered to, and its real protection domain is defined by the claims.
Claims (6)
1. a double pressure condenser multistage steam injector pumped vacuum systems, described pumped vacuum systems comprises: steam turbine (1), the first condenser (2), the second condenser (3), low pressure condenser hotwell (4), muffler (10), the first steam jet ejector (11), the second steam jet ejector (12), the 3rd steam jet ejector (13), the 4th steam jet ejector (14), the first stram condenser (15), the second stram condenser (16), and be arranged at a plurality of control valves and the pipeline between above-mentioned all parts;
It is characterized in that:
The outlet of steam turbine (1) is connected with the entrance of the second condenser (3) with the first condenser (2) simultaneously;
First entrance (111) of the first steam jet ejector (11) connects power steam source of stable pressure (6), second entrance (112) of the first steam jet ejector receives the gas from the first condenser (2) and the second condenser (3), first outlet (113) joint noise reduction device (10) of the first steam jet ejector;
First entrance (121) of the second steam jet ejector (12) connects power steam source of stable pressure (6), second entrance (122) of the second steam jet ejector connects the first condenser (2), and the first outlet (123) of the second steam jet ejector connects the first stram condenser (15);
First entrance (131) of the 3rd steam jet ejector (13) connects power steam source of stable pressure (6), second entrance (132) of the 3rd steam jet ejector connects the second condenser (3), and the first outlet (133) of the 3rd steam jet ejector connects the first stram condenser (15);
First entrance (141) of the 4th steam jet ejector (14) connects power steam source of stable pressure (6), second entrance (142) of the 4th steam jet ejector connects the first stram condenser (15), and the first outlet (143) of the 4th steam jet ejector is connected to the second stram condenser (16);
First entrance (151) of the first stram condenser (15) connects cooling water inlet, and the first outlet (152) of the first stram condenser connects low pressure condenser hotwell (4);
The first outlet (161) of the second stram condenser (16) connects low pressure condenser hotwell (4), the second outlet (162) of the second stram condenser is coolant outlet, and the 3rd outlet (163) of the second stram condenser connects atmosphere.
2. double pressure condenser multistage steam injector pumped vacuum systems according to claim 1, is characterized in that:
Between the first condenser (2) and the outlet side pipeline of the second condenser (3), be provided with the exhaust pipe of high-low pressure condenser, on this exhaust pipe, be provided with the exhaust pipe communicating valve (19) of high-low pressure condenser.
3. double pressure condenser multistage steam injector pumped vacuum systems according to claim 2, is characterized in that:
Between the first condenser (2) and second entrance (112) of the first steam jet ejector (11), be provided with the air entry valve (20) of the first steam jet ejector;
Between the first condenser (2) and second entrance (122) of the second steam jet ejector (12), be provided with the air entry valve (21) of the second steam jet ejector;
Between the second condenser (3) and second entrance (132) of the 3rd steam jet ejector (13), be provided with the air entry valve (22) of the 3rd steam jet ejector.
4. double pressure condenser multistage steam injector pumped vacuum systems according to claim 3, is characterized in that:
Between power steam source of stable pressure (6) and first entrance (111) of the first steam jet ejector (11), be provided with the power steam inlet valve (9) of the first steam jet ejector;
Between power steam source of stable pressure (6) and first entrance (121) of the second steam jet ejector (12), be provided with the power steam inlet valve (8) of the second steam jet ejector;
Between power steam source of stable pressure (6) and first entrance (131) of the 3rd steam jet ejector (13), be provided with the power steam inlet valve (7) of the 3rd steam jet ejector;
Between power steam source of stable pressure (6) and first entrance (141) of the 4th steam jet ejector (14), be provided with the power steam inlet valve (17) of the 4th steam jet ejector.
5. double pressure condenser multistage steam injector pumped vacuum systems according to claim 4, is characterized in that:
Described pumped vacuum systems also comprises and is arranged on power steam source of stable pressure (6) power steam entrance isolating valve (5) before.
6. double pressure condenser multistage steam injector pumped vacuum systems according to claim 5, is characterized in that:
Between the first stram condenser (15) and low pressure condenser hotwell (4), be provided with the condensate liquid tapping valve (18) of the first stram condenser;
Between the second stram condenser (16) and low pressure condenser hotwell (4), be provided with the condensate liquid tapping valve (23) of the second stram condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174151.4U CN203772053U (en) | 2014-04-11 | 2014-04-11 | Multistage steam ejector vacuum-pumping system of double backpressure condensers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174151.4U CN203772053U (en) | 2014-04-11 | 2014-04-11 | Multistage steam ejector vacuum-pumping system of double backpressure condensers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772053U true CN203772053U (en) | 2014-08-13 |
Family
ID=51289238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420174151.4U Expired - Lifetime CN203772053U (en) | 2014-04-11 | 2014-04-11 | Multistage steam ejector vacuum-pumping system of double backpressure condensers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772053U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973023A (en) * | 2016-05-16 | 2016-09-28 | 长沙湘资生物科技有限公司 | Multi-stage backheating hot pressing type vacuum pumping system provided with low-pressure heater and shaft seal heater and adjustment method of vacuum pumping system |
| CN106917780A (en) * | 2017-03-16 | 2017-07-04 | 林文华 | Multistage steam injecting type pumped vacuum systems and its adjusting method |
| CN106949753A (en) * | 2017-04-01 | 2017-07-14 | 祝凤娟 | A kind of control method of the changeable vacuum system of Air-cooled Unit full working scope |
| CN108775822A (en) * | 2018-08-08 | 2018-11-09 | 西安西热节能技术有限公司 | A kind of high back pressure thermal power plant unit pumped vacuum systems energy saver and working method |
-
2014
- 2014-04-11 CN CN201420174151.4U patent/CN203772053U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973023A (en) * | 2016-05-16 | 2016-09-28 | 长沙湘资生物科技有限公司 | Multi-stage backheating hot pressing type vacuum pumping system provided with low-pressure heater and shaft seal heater and adjustment method of vacuum pumping system |
| CN106917780A (en) * | 2017-03-16 | 2017-07-04 | 林文华 | Multistage steam injecting type pumped vacuum systems and its adjusting method |
| CN106917780B (en) * | 2017-03-16 | 2018-01-16 | 晟源高科(北京)科技有限公司 | Multistage steam injecting type pumped vacuum systems and its adjusting method |
| CN106949753A (en) * | 2017-04-01 | 2017-07-14 | 祝凤娟 | A kind of control method of the changeable vacuum system of Air-cooled Unit full working scope |
| CN106949753B (en) * | 2017-04-01 | 2017-12-08 | 晟源高科(北京)科技有限公司 | A kind of control method of the changeable vacuum system of Air-cooled Unit full working scope |
| CN108775822A (en) * | 2018-08-08 | 2018-11-09 | 西安西热节能技术有限公司 | A kind of high back pressure thermal power plant unit pumped vacuum systems energy saver and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103940255B (en) | Double pressure condenser multistage steam sprays pumped vacuum systems | |
| CN205690909U (en) | A kind of water chiller heat pump backheat vacuum energy-saving system | |
| CN203772053U (en) | Multistage steam ejector vacuum-pumping system of double backpressure condensers | |
| CN110500148B (en) | High-back-pressure heat supply and monitoring method and system for large steam turbine generator unit | |
| CN103940256B (en) | With pressure controlled plant condenser vapor injection vacuum pumping system | |
| CN203772052U (en) | Multistage steam ejector vacuum-pumping system of double backpressure condensers | |
| CN203772051U (en) | Multistage steam ejector vacuum-pumping system of double backpressure condensers | |
| CN203772054U (en) | Vacuum-pumping system for multistage steam jet of double-backpressure condenser | |
| CN103836608B (en) | Low pressure drain cooler heat regenerative system | |
| CN203772055U (en) | Power plant condenser steam injection vacuum-pumping system with pressure control | |
| CN203259028U (en) | Double-backpressure-condenser vacuum pumping system | |
| CN105156161A (en) | Main reheat steam and main reheat steam bypass system | |
| CN206862154U (en) | A kind of energy-saving condenser steam injection vacuum system | |
| CN210768938U (en) | High back pressure heat supply and monitoring system of large-scale turbo generator set | |
| CN205049002U (en) | High -efficient vacuum economizer system of condenser | |
| CN104990427A (en) | System improving vacuum-pumping efficiency of double-backpressure condenser | |
| CN205532739U (en) | Starting bypass system of combined cycle extraction condensing and back pressure unit | |
| CN206832075U (en) | Condenser vacuumizes energy-saving driving system | |
| CN204007198U (en) | A kind of water-jet exhaust device for condenser | |
| CN203443393U (en) | Condenser vacuum system provided with steam ejectors | |
| CN209326399U (en) | Condense island system | |
| CN104329127A (en) | Multi-unit combination expansion system | |
| CN212002518U (en) | Gas and steam combined cycle unit structure | |
| CN209494773U (en) | A kind of steam turbine pumped vacuum systems | |
| CN103573308A (en) | Nine-stage regenerative extraction steam system of 1000MW thermal power generating unit turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160811 Address after: 100085, 2 International Building, 2310 floor, ten Street, Beijing, Haidian District, room 23 Patentee after: PRESEN ENERGY TECHNOLOGY (BEIJING) CO.,LTD. Address before: 100085, 2 International Building, 2310 floor, ten Street, Beijing, Haidian District, room 23 Patentee before: Zhang Shuguang Patentee before: PRESEN ENERGY TECHNOLOGY (BEIJING) CO.,LTD. |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Shuguang Document name: Notification of Passing Examination on Formalities |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100085, 2 International Building, 2310 floor, ten Street, Beijing, Haidian District, room 23 Patentee after: PRESENCE ENERGY TECHNOLOGY (BEIJING) CO.,LTD. Address before: 100085, 2 International Building, 2310 floor, ten Street, Beijing, Haidian District, room 23 Patentee before: PRESEN ENERGY TECHNOLOGY (BEIJING) CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multistage steam ejector vacuum-pumping system of double backpressure condensers Effective date of registration: 20180105 Granted publication date: 20140813 Pledgee: China Co. truction Bank Corp Beijing Zhongguancun branch Pledgor: PRESENCE ENERGY TECHNOLOGY (BEIJING) CO.,LTD.|Zhang Shuguang Registration number: 2018990000018 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190328 Granted publication date: 20140813 Pledgee: China Co. truction Bank Corp Beijing Zhongguancun branch Pledgor: PRESENCE ENERGY TECHNOLOGY (BEIJING) CO.,LTD.|Zhang Shuguang Registration number: 2018990000018 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |