CN107036454A - The vacuum regulator and its control method of turbine condenser - Google Patents
The vacuum regulator and its control method of turbine condenser Download PDFInfo
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- CN107036454A CN107036454A CN201710295371.0A CN201710295371A CN107036454A CN 107036454 A CN107036454 A CN 107036454A CN 201710295371 A CN201710295371 A CN 201710295371A CN 107036454 A CN107036454 A CN 107036454A
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 58
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 230000009467 reduction Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
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- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010977 unit operation Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/10—Auxiliary systems, arrangements, or devices for extracting, cooling, and removing non-condensable gases
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- Control Of Turbines (AREA)
Abstract
The present invention relates to a kind of vacuum regulator of turbine condenser and its control method, in a kind of vacuum regulator of turbine condenser of the present invention, due to being connected with vacuum measurement instrument and the first vacuum regulating valve on condenser, the vacuum measurement instrument, first vacuum regulating valve is connected with control device, so, when air exhauster in condenser to vacuumizing, vacuum measurement instrument detects the vacuum in condenser and metrical information is issued into control device, control device adjusts the aperture size of the first air inlet of the first vacuum regulating valve according to the metrical information received, so as to adjust the vacuum in condenser to desired value.As can be seen here, the vacuum regulator and its control method of a kind of turbine condenser of the invention can automatically regulate the vacuum in condenser, and process safety, result are accurate.
Description
Technical field
The present invention relates to a kind of vacuum regulator of turbine condenser and its control method, belong to steam turbine power generation skill
Art field.
Background technology
Vacuum system is the important accessory system of steam turbine, and turbine vacuum system is mainly by condenser, water circulating pump, condensation
Water pump, air exhauster etc. are constituted.
The effect of condenser is：The pressure at expulsion for reducing steam turbine is to form high vacuum, to increase steam in steam turbine
Interior isentropic enthalpy drop；Turbine discharge is cooled into condensate, working medium and a part of heat is reclaimed；Returned in unit is opened, stopped
Receive hydrophobic；One-level deaeration in condenser is carried out to condensate and condenser water replenishing.
The effect of air exhauster has two：One is during unit is opened, stopped, to extract the air in condenser out, sets up and starts very
It is empty；Two be in unit operation, continuously to extract incondensable gas and the steam such as leaked-in air in condenser out, remains solidifying
Vacuum in vapour device, to ensure the operating efficiency of condenser and improve unit economy.
The effect of water circulating pump is：Continuously provided to condenser and other coolers (air cooler, oil cooler) etc.
The cooling water of certain pressure and flow, to ensure their needs of work.
The effect of condensate pump is：Condensate in condenser is continuously transferred out, oxygen-eliminating device conduct is delivered to
Boiler feedwater, to reach the effect for reclaiming working medium.
Reduce the coasting time under some operating modes, after such as steam turbine startup stage medium-speed warming or steam turbine off-the-line, it is necessary to
A certain degree of destruction is carried out to the vacuum set up, conventional way is：Adjusted by running operating personnel's manual unlocking vacuum
Valve is saved, the working effect of air exhauster is reduced, slowly vacuum is adjusted by leaked-in air in condenser or non-condensing steam.It is this
The shortcoming of method is：Adjust vacuum value of velocity slow, regulating measure is passive；Purely manual operation, increases misoperation probability, to unit operation
There is certain security risk.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of vacuum of turbine condenser
Adjusting means and its control method, can safely and accurately adjust the vacuum in turbine condenser.
To achieve the above object, the present invention provides a kind of vacuum regulator of turbine condenser, using following technology
Scheme：A kind of vacuum regulator of turbine condenser, the condenser is connected to the steam drain of steam turbine, the condenser
It is connected to by connecting pipe on the air entry of air exhauster, connecting pipe is provided with vacuum insulating valve；It is also associated with condenser
Vacuum measurement instrument and the first vacuum regulating valve, the first vacuum regulating valve have the first air inlet connected with ambient atmosphere
Mouthful, the vacuum measurement instrument, the first vacuum regulating valve are connected with control device, in vacuum measurement instrument detection condenser
Vacuum and metrical information is issued into control device, control device adjusts the first vacuum according to the metrical information received
The aperture size of first air inlet of regulating valve.
Preferably, the first vacuum regulating valve is connected on condenser by the first connecting tube；On the condenser
Be also associated with air admission valve, air admission valve is connected on condenser by the second connecting tube, air admission valve have with it is outer
Second air inlet of boundary's atmosphere；The diameter of second connecting tube is more than the diameter of the first connecting tube.
Preferably, air admission valve is also associated with the condenser, air admission valve is connected to by the second connecting tube
On condenser, air admission valve has the second air inlet connected with ambient atmosphere；The first vacuum regulating valve passes through
One connecting tube is connected in the second connecting tube；The diameter of second connecting tube is more than the diameter of the first connecting tube.
Preferably, the gas outlet of the air exhauster is connected with moisture trap, and moisture trap has to be connected with ambient atmosphere
Logical outlet.
It is further preferable that the moisture trap is provided with tributary interface, the air entry of vacuum insulating valve and air exhauster it
Between connecting pipe be provided with connector, be connected with bypass line, bypass line and set between connector and the tributary interface
There is the second vacuum regulating valve.
With the present invention a kind of turbine condenser vacuum regulator correspondingly, the present invention a kind of steam turbine is also provided
The control method of the vacuum regulator of condenser, is adopted the following technical scheme that：A kind of vacuum conditions dress of turbine condenser
The control method put, is adjusted using the vacuum of the turbine condenser described in above-mentioned technical proposal or its any preferred technical scheme
Regulating device carries out operation, including following job step：1) when air exhauster is vacuumized to condenser, vacuum insulating valve is opened,
Close the first vacuum regulating valve；2) when needing vacuum in reduction condenser, control device adjusts the first vacuum regulating valve
Increase the aperture of the first air inlet, outside air enters condenser from the first air inlet and reduces vacuum in condenser；
Control device obtains the vacuum in condenser from vacuum measurement instrument；When the vacuum in condenser is reduced to the first desired value
When, control device stops the first air inlet aperture of the first vacuum regulating valve of regulation；3) vacuum in rise condenser is needed
When, control device, which adjusts the first vacuum regulating valve, makes the aperture of the first air inlet reduce so that vacuum liter in condenser
It is high；Control device obtains the vacuum in condenser from vacuum measurement instrument；When the vacuum up in condenser to the second phase
During prestige value, control device stops the first air inlet aperture of the first vacuum regulating valve of regulation.
Preferably, it is connected with air admission valve on the condenser, air admission valve has the connected with ambient atmosphere
Two air inlets, the second air inlet is more than first air inlet；Also include following job step：4) need to abolish true in condenser
During reciprocal of duty cycle, opening the air admission valve makes ambient atmosphere enter condenser from the second air inlet.
Preferably, the gas outlet of the air exhauster is connected with moisture trap, and moisture trap has to be connected with ambient atmosphere
Logical gas outlet；The moisture trap is provided with tributary interface, the connection between vacuum insulating valve and the air entry of air exhauster
Pipeline is provided with connector, and bypass line is connected between connector and the tributary interface, and bypass line is true provided with second
Reciprocal of duty cycle regulating valve；Also comprise the following steps：5) when needing vacuum in reduction condenser, the second vacuum breaker can also be adjusted
Turn on bypass line.
As described above, the vacuum regulator and its control method of a kind of turbine condenser of the present invention, have
Following beneficial effect：In a kind of vacuum regulator of turbine condenser of the present invention, due to being connected with condenser
Vacuum measurement instrument and the first vacuum regulating valve, the vacuum measurement instrument, the first vacuum regulating valve are and control device
Connection, so, when air exhauster in condenser to vacuumizing, vacuum measurement instrument detects the vacuum in condenser and will
Metrical information issues control device, and control device adjusts the first of the first vacuum regulating valve according to the metrical information received
The aperture size of air inlet, so as to adjust vacuum in condenser to desired value.As can be seen here, a kind of steam turbine of the invention
The vacuum regulator and its control method of condenser can automatically regulate the vacuum in condenser, process safety, result
Accurately.
Brief description of the drawings
Fig. 1 show a kind of schematic diagram of type of attachment of the equipment such as condenser and steam turbine in power plant system.
Fig. 2 is shown as a kind of structural representation of the vacuum regulator of turbine condenser of the present invention.
Component label instructions
The vacuum regulating valve of 1 steam inlet pipe road 14 first
The air inlet of 2 bypass duct 15 first
The connecting tube of 3 bypass control valve 16 first
The air admission valve of 4 steam turbine 17
The connecting tube of 5 generator 18 second
The air inlet of 6 steam drain 19 second
The gas outlet of 7 condenser 20
The moisture trap of 8 feedwater piping 21
9 connecting pipes 22 are exported
The tributary interface of 10 air exhauster 23
The connector of 11 air entry 24
The bypass line of 12 vacuum insulating valve 25
The vacuum regulating valve of 13 vacuum measurement instrument 26 second
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate specification to be taken off
The content shown, so that those skilled in the art is understood with reading, is not limited to enforceable qualifications of the invention, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing the present invention
Under the effect that can be generated and the purpose that can reach, it all should still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile, the term of cited such as " on ", " under " in this specification, "left", "right", " centre " and " one " is also only
It is easy to understanding for narration, and is not used to limit enforceable scope of the invention, its relativeness is altered or modified, without essence
Change under technology contents, when being also considered as enforceable category of the invention.
In the power plant using steam turbine power generation, condenser is one of important equipment, and Fig. 1 is shown as condenser in steamer
A kind of relatively conventional attachment structure in the power plant of machine 4, steam inlet pipe road 1 and boiler connection, the high temperature flowed out from boiler are high
Pressure steam, which enters, to do work in steam turbine 4 and is finally flowed out from the steam drain 6 of steam turbine 4, the steam discharge of steam inlet pipe road 1 and steam turbine 4
It is provided between mouth 6 on bypass duct 2, bypass duct 2 and is connected with bypass control valve 3, in the startup stage of steam turbine 4, steam inlet pipe road 1
In some vapor enter steam turbine 4 warm cylinder carried out to steam turbine 4 and steam turbine 4 is slowly run, another part steam passes through
Bypass duct 2 is drained into condenser 7, and the aperture of bypass control valve 3 is gradually reduced, then is increased into the steam in steam turbine 4,
The faster rotational speed of steam turbine 4, until generating electricity by way of merging two or more grid systems.The turbine of steam turbine 4 rotates and drives generator 5 to generate electricity；Condenser 7 is connected to
On the steam drain 6 of steam turbine 4, steam condensation in condenser 7 is flowed into water and by feed pump from the steam drain 6 of steam turbine 4
Boiler is depressed into through feedwater piping 8, the aqueous water that boiler will go into boiler is heated into high temperature and high pressure steam and inputted again to steamer
Machine 4 is done work.
As shown in Fig. 2 the present invention provides a kind of vacuum regulator of turbine condenser, the condenser 7 is connected to
The steam drain 6 of steam turbine 4, the condenser 7 is connected on the air entry 11 of air exhauster 10 by connecting pipe 9, connecting pipe 9
It is provided with vacuum insulating valve 12；The vacuum regulating valve 14 of vacuum measurement instrument 13 and first is also associated with condenser 7, first is true
Reciprocal of duty cycle regulating valve 14 has the first air inlet 15 connected with ambient atmosphere, and the vacuum measurement instrument 13, the first vacuum are adjusted
Section valve 14 is connected with control device, and metrical information is simultaneously issued control by the vacuum in the detection condenser 7 of vacuum measurement instrument 13
Device processed, control device adjusts opening for the first air inlet 15 of the first vacuum regulating valve 14 according to the metrical information received
Spend size.Due to being connected with the vacuum regulating valve 14 of vacuum measurement instrument 13 and first, the vacuum measurement on condenser 7
Instrument 13, the first vacuum regulating valve 14 are connected with control device, so, when air exhauster 10 in condenser 7 to vacuumizing
When, vacuum measurement instrument 13 detects the vacuum in condenser 7 and metrical information is issued into control device, and control device is according to institute
The metrical information of reception adjusts the aperture size of the first air inlet 15 of the first vacuum regulating valve 14, so as to adjust condenser
Vacuum in 7 is to desired value.As can be seen here, a kind of vacuum regulator of turbine condenser of the invention can be automatically
The vacuum in condenser 7 is adjusted, process safety, result are easily-controllable and accurate.
In the opening of the unit of steam turbine 4, stop during, the air that air exhauster 10 is extracted out in condenser 7 makes holding in condenser 7
Higher vacuum；In unit operation, air exhauster 10 continuously extracts the non-condensing gas such as leaked-in air in condenser 7 out
Body and steam, maintain the vacuum in condenser 7, to ensure the operating efficiency of condenser 7 and improve unit economy.In this hair
In a kind of vacuum regulator of bright turbine condenser, when air exhauster 10 is vacuumized to condenser 7, vacuum insulating
Valve 12 is opened and turns on connecting pipe 9.As shown in Fig. 2 as a preferred mode, the first vacuum regulating valve 14
It is connected to by the first connecting tube 16 on condenser 7；Some in emergency circumstances, it is necessary to rapidly abolish true in condenser 7
Reciprocal of duty cycle, makes the vacuum in condenser 7 promptly reduce, therefore, being broken as shown in Fig. 2 being also associated with vacuum on the condenser 7
Bad valve 17, air admission valve 17 is connected on condenser 7 by the second connecting tube 18, and air admission valve 17 has and ambient atmosphere
Second air inlet 19 of connection；The diameter of second connecting tube 18 is more than the diameter of the first connecting tube 16, air admission valve 17
The maximum opening that can open of the second air inlet 19 be more than the first air inlet 15 of the first vacuum regulating valve 14 can
The maximum opening of opening, so, the vacuum in condenser 7 can be rapidly abolished by opening air admission valve 17, makes to coagulate
Vacuum in vapour device 7 is promptly reduced.As a preferred mode, the first vacuum regulating valve 14 can be passed through
First connecting tube 16 is connected in the second connecting tube 18., can be by first in order to prevent the vacuum in condenser 7 from reducing too fast
It is smaller that the caliber of connecting tube 16 is set, and can thus limit the flow velocity that outside air is entered in condenser 7, the first connection
The diameter of pipe 16 is set according to the vacuum ranges of required regulation, equally, true from maximum valve port opening less first
Reciprocal of duty cycle regulating valve 14 can also limit the flow velocity that outside air is entered in condenser 7, prevent the vacuum in condenser 7 from reducing
It is too fast.
Entrained steam extraction in condenser 7 is kept preferable vacuum by air exhauster 10 so that condenser 7 is interior, in order that
These entrained steams condense, as shown in Fig. 2 the gas outlet 20 of the air exhauster 10 is connected with moisture trap 21, air water
Separator 21 has the outlet 22 connected with ambient atmosphere, and entrained steam is extracted out and be emitted into by air exhauster 10 out of condenser 7
In moisture trap 21, entrained steam temperature in moisture trap 21 reduces and condenses into water and be stored in moisture trap 21
In, during the residual air for failing to condense in entrained steam drains into air from the outlet 22 of moisture trap 21.As a kind of preferred
Mode, as shown in Fig. 2 the moisture trap 21 is provided with tributary interface 23, the suction of vacuum insulating valve 12 and air exhauster 10
Connecting pipe 9 between gas port 11 is provided with connector 24, and bypass duct is connected between connector 24 and the tributary interface 23
Road 25, bypass line 25 is provided with the second vacuum regulating valve 26, and the second vacuum regulating valve 26, which is opened, can make bypass duct
Road 25 is turned on, then moisture trap 21 is connected with the air entry 11 of air exhauster 10, the gas of the suction of air entry 11 of air exhauster 10
Body is the gas summation entered from condenser 7 and moisture trap 21 in the air entry 11 of air exhauster 10, so, in air exhauster
In the case that 10 power is constant, the aperture increase of the second vacuum regulating valve 26, then air exhauster 10 is aspirated from condenser 7
Steam will be reduced, and the vacuum in condenser 7 will be reduced.If desired to the vacuum up in condenser 7, then by second
The valve port opening of vacuum regulating valve 26 is turned down until completely closing.So, also can by adjusting the second vacuum regulating valve 26
It is enough that adjustment effect is played to the vacuum in condenser 7.
With the present invention a kind of turbine condenser vacuum regulator correspondingly, the present invention a kind of steam turbine is also provided
The control method of the vacuum regulator of condenser, is adopted the following technical scheme that：A kind of vacuum conditions dress of turbine condenser
The control method put, is adjusted using the vacuum of the turbine condenser described in above-mentioned technical proposal or its any preferred technical scheme
Regulating device carries out operation, including following job step：
1) when air exhauster 10 is vacuumized to condenser 7, vacuum insulating valve 12 is opened, the first vacuum regulating valve is closed
14；
2) when needing vacuum in reduction condenser 7, control device, which adjusts the first vacuum regulating valve 14, makes the first air inlet
The aperture increase of mouth 15, outside air enters condenser 7 from the first air inlet 15 and reduces vacuum in condenser 7；Control
Device obtains the vacuum in condenser 7 from vacuum measurement instrument 13；When the vacuum in condenser 7 is reduced to the first desired value
When, control device stops the aperture of the first air inlet 15 of the first vacuum regulating valve 14 of regulation；
3) when needing vacuum in rise condenser 7, control device, which adjusts the first vacuum regulating valve 14, makes the first air inlet
The aperture of mouth 15 reduces so that vacuum up in condenser 7；Control device is obtained in condenser 7 from vacuum measurement instrument 13
Vacuum；When the vacuum up in condenser 7 to the second desired value, control device stops regulation the first vacuum regulation
The aperture of the first air inlet 15 of valve 14.
In above-mentioned steps 2) and step 3) in, the first desired value and the second desired value are set in advance in control device, the
The concrete numerical value of one desired value and the second desired value is determined according to actual conditions, can not be enumerated here.With this hair
Correspondingly, a kind of vacuum conditions of turbine condenser of the invention are filled a kind of vacuum regulator of bright turbine condenser
The control method put has a kind of advantageous effects of the vacuum regulator of turbine condenser of the invention described above certainly,
Here is omitted.
As shown in Fig. 2 being connected with air admission valve 17 on the condenser 7, air admission valve 17 has big with the external world
Second air inlet 19 of gas connection, the second air inlet 19 is more than first air inlet 15；As a preferred mode, this hair
A kind of control method of the vacuum regulator of bright turbine condenser also includes following job step：
4) when needing to abolish vacuum in condenser 7, opening the air admission valve 17 makes ambient atmosphere from the second air inlet
Mouth 19 enters condenser 7, so that reducing vacuum in condenser 7.So, when some emergencies occur, Ke Yitong
Cross opening air admission valve 17 and abolish the vacuum in condenser 7.
As shown in Fig. 2 the gas outlet 20 of the air exhauster 10 is connected with moisture trap 21, moisture trap 21 have with
The gas outlet 20 of ambient atmosphere connection；The moisture trap 21 is provided with tributary interface 23, vacuum insulating valve 12 and air exhauster
Connecting pipe 9 between 10 air entry 11 is provided with connector 24, is connected between connector 24 and the tributary interface 23
Bypass line 25, bypass line 25 is provided with the second vacuum regulating valve 26；A kind of vacuum of turbine condenser of the present invention
The control method of adjusting means also comprises the following steps：
5) when needing vacuum in reduction condenser 7, can also adjust the second vacuum breaker turns on bypass line 25.
So, in the case where the power of air exhauster 10 is constant, the aperture increase of the second vacuum regulating valve 26 is then evacuated
The steam that machine 10 is aspirated from condenser 7 will be reduced, and the vacuum in condenser 7 will be reduced.If desired in condenser 7
Vacuum up, then the valve port opening of the second vacuum regulating valve 26 is turned down until completely close.So, pass through regulation the
Two vacuum regulating valves 26 also can play adjustment effect to the vacuum in condenser 7.
Technical scheme based on above-described embodiment, a kind of vacuum regulator of turbine condenser of the invention and its control
Method processed can automatically regulate the vacuum in condenser, and process safety, result are accurate.
In summary, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of vacuum regulator of turbine condenser, the condenser (7) is connected to the steam drain (6) of steam turbine (4),
It is characterized in that：The condenser (7) is connected on the air entry of air exhauster (10) (11) by connecting pipe (9), connecting pipe
(9) it is provided with vacuum insulating valve (12)；Vacuum measurement instrument (13) and the first vacuum regulating valve are also associated with condenser (7)
(14), the first vacuum regulating valve (14) has the first air inlet (15) connected with ambient atmosphere, the vacuum measurement instrument
(13), the first vacuum regulating valve (14) is connected with control device, true in vacuum measurement instrument (13) detection condenser (7)
Metrical information is simultaneously issued control device by reciprocal of duty cycle, and control device adjusts the regulation of the first vacuum according to the metrical information received
The aperture size of the first air inlet (15) of valve (14).
2. the vacuum regulator of turbine condenser according to claim 1, it is characterised in that：First vacuum
Regulating valve (14) is connected on condenser (7) by the first connecting tube (16)；Vacuum breaking is also associated with the condenser (7)
Valve (17), air admission valve (17) is connected on condenser (7) by the second connecting tube (18), air admission valve (17) have with
The second air inlet (19) of ambient atmosphere connection；The diameter of second connecting tube (18) is more than the straight of the first connecting tube (16)
Footpath.
3. the vacuum regulator of turbine condenser according to claim 1, it is characterised in that：The condenser (7)
On be also associated with air admission valve (17), air admission valve (17) is connected on condenser (7) by the second connecting tube (18), very
Empty destructive valve (17) has the second air inlet (19) connected with ambient atmosphere；The first vacuum regulating valve (14) passes through
One connecting tube (16) is connected in the second connecting tube (18)；The diameter of second connecting tube (18) is more than the first connecting tube (16)
Diameter.
4. the vacuum regulator of turbine condenser according to claim 1, it is characterised in that：The air exhauster (10)
Gas outlet (20) be connected with moisture trap (21), moisture trap (21) has the outlet (22) connected with ambient atmosphere.
5. the vacuum regulator of turbine condenser according to claim 4, it is characterised in that：The moisture trap
(21) tributary interface (23), the connecting pipe between vacuum insulating valve (12) and the air entry (11) of air exhauster (10) are provided with
(9) connector (24) is provided with, bypass line (25), bypass duct are connected between connector (24) and the tributary interface (23)
Road (25) is provided with the second vacuum regulating valve (26).
6. a kind of control method of the vacuum regulator of turbine condenser, using the steam turbine condensing described in claim 1
The vacuum regulator of device carries out operation, including following job step：
1) when air exhauster (10) is vacuumized to condenser (7), vacuum insulating valve (12) is opened, the regulation of the first vacuum is closed
Valve (14)；
2) when needing reduction condenser (7) interior vacuum, control device, which adjusts the first vacuum regulating valve (14), makes the first air inlet
The aperture increase of mouth (15), outside air enters condenser (7) from the first air inlet (15) and makes the interior vacuum drop of condenser (7)
It is low；Control device obtains the vacuum in condenser (7) from vacuum measurement instrument (13)；When the vacuum drop in condenser (7)
During as little as the first desired value, control device stops the first air inlet (15) aperture of the first vacuum regulating valve (14) of regulation；
3) when needing vacuum in rise condenser, control device, which adjusts the first vacuum regulating valve (14), makes the first air inlet
(15) aperture reduces so that condenser (7) interior vacuum up；Control device obtains condensing from vacuum measurement instrument (13)
Vacuum in device (7)；When vacuum up to the second desired value in condenser (7), control device stops regulation first
The first air inlet (15) aperture of vacuum regulating valve (14).
7. the control method of the vacuum regulator of turbine condenser as claimed in claim 6, it is characterized in that, the condensing
Air admission valve (17) is connected with device (7), air admission valve (17) has the second air inlet (19) connected with ambient atmosphere,
Second air inlet (19) is more than first air inlet (15)；Also include following job step：
4) when needing to abolish condenser (7) interior vacuum, opening the air admission valve (17) makes ambient atmosphere from the second air inlet
Mouth (19) enters condenser (7).
8. the control method of the vacuum regulator of turbine condenser as claimed in claim 6, it is characterized in that, the pumping
The gas outlet (20) of machine (10) is connected with moisture trap (21), and moisture trap (21) has the outlet connected with ambient atmosphere
Mouth (20)；The moisture trap (21) is provided with tributary interface (23), the air-breathing of vacuum insulating valve (12) and air exhauster (10)
Connecting pipe (9) between mouth (11) is provided with connector (24), is connected between connector (24) and the tributary interface (23)
There is bypass line (25), bypass line (25) is provided with the second vacuum regulating valve (26)；Also comprise the following steps：
5) when needing reduction condenser (7) interior vacuum, can also adjust the second vacuum breaker turns on bypass line (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295371.0A CN107036454B (en) | 2017-04-28 | 2017-04-28 | Vacuum adjusting device of steam turbine condenser and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295371.0A CN107036454B (en) | 2017-04-28 | 2017-04-28 | Vacuum adjusting device of steam turbine condenser and control method thereof |
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| CN107036454A true CN107036454A (en) | 2017-08-11 |
| CN107036454B CN107036454B (en) | 2023-02-17 |
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| CN201710295371.0A Active CN107036454B (en) | 2017-04-28 | 2017-04-28 | Vacuum adjusting device of steam turbine condenser and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020076368A (en) * | 2018-11-08 | 2020-05-21 | 株式会社東芝 | Direct contact condenser |
| CN114812925A (en) * | 2022-05-05 | 2022-07-29 | 国电内蒙古东胜热电有限公司 | Vacuum identification, calculation and detection device and method for power plant condenser |
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| JP7086821B2 (en) | 2018-11-08 | 2022-06-20 | 株式会社東芝 | Direct contact type condenser |
| CN114812925A (en) * | 2022-05-05 | 2022-07-29 | 国电内蒙古东胜热电有限公司 | Vacuum identification, calculation and detection device and method for power plant condenser |
| CN114812925B (en) * | 2022-05-05 | 2023-08-22 | 国电内蒙古东胜热电有限公司 | Power plant condenser vacuum recognition, calculation and detection device and method |
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