CN109708486A - A kind of steam turbine condenser pumped vacuum systems and control method with cooling device - Google Patents
A kind of steam turbine condenser pumped vacuum systems and control method with cooling device Download PDFInfo
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- CN109708486A CN109708486A CN201811594032.3A CN201811594032A CN109708486A CN 109708486 A CN109708486 A CN 109708486A CN 201811594032 A CN201811594032 A CN 201811594032A CN 109708486 A CN109708486 A CN 109708486A
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Abstract
The present invention relates to a kind of generating auxiliary equipments, specially a kind of steam turbine condenser pumped vacuum systems and control method with cooling device, the steam exhaust of steam turbine of the present invention is stored in hot well after condensing within the condenser, on-condensible gas accesses the air inlet of stream-jet ejector, the jet orifice of pumping access stream-jet ejector at steam turbine penult；Aerial cooler, cooling water cooler and freezing water cooler and vacuum pump including being connected to stream-jet ejector gas outlet in turn；The first valve of gas outlet of the aerial cooler is connect with cooling water cooler air inlet, and the second valve of gas outlet of cooling water cooler is connect with freezing water cooler air inlet；The first bypass that the gas outlet of the aerial cooler is set third valve is controlled to a vacuum pump, and the second bypass that the gas outlet of the cooling water cooler is set the 4th valve is controlled to a vacuum pump.
Description
Technical field
The present invention relates to a kind of generating auxiliary equipment, specially a kind of steam turbine condenser with cooling device is vacuumized
System and control method.
Background technique
The condenser subsidiary engine equipment one of important as power plant, condenser vacuum is directly related to generating efficiency, into
And profit from power plant is influenced, in order to maintain the vacuum degree of condenser, most of power plant, which will all pass through vacuum pump, to be taken due to leakage, steam
The on-condensible gas suction that the factors such as band enter condenser is discharged into air.
In actual operation, when summer operation is lived in high back pressure pumping heat supply, since environment temperature increases, vacuum is utilized
Pumping gas reduces air partial pressure, and during improving vacuum, vacuum pump, which can not only suck more vapor and enter vacuum pump, to be made
At cavitation erosion, equipment is damaged, shortens the service life of pump, and the actual work temperature (> 20 DEG C) of vacuum pump is all generally higher than very
Sky pump design work temperature (15 DEG C), tradition cooling rely solely on single circulating water and are difficult to reach vacuum pump work temperature
Degree, makes existing unit vacuum pump suction capactity decline to a great extent, influences unit safety and economy.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of clever structure, and design rationally, effectively increases electricity
The safety of factory and the steam turbine condenser pumped vacuum systems and control method with cooling device of economy.
The present invention is to be achieved through the following technical solutions:
A kind of steam turbine condenser pumped vacuum systems with cooling device, after the steam exhaust of steam turbine condenses within the condenser
It is stored in hot well, on-condensible gas accesses the air inlet of stream-jet ejector, pumping access stream-jet ejector at steam turbine penult
Jet orifice；Aerial cooler, cooling water cooler and chilled water including being connected to stream-jet ejector gas outlet in turn are cooling
Device and vacuum pump；The first valve of gas outlet of the aerial cooler is connect with cooling water cooler air inlet, cooling water
The second valve of gas outlet of cooler is connect with freezing water cooler air inlet；
The first bypass that the gas outlet of the aerial cooler is set third valve is controlled to a vacuum pump, described
The second bypass that the gas outlet of cooling water cooler is set the 4th valve is controlled to a vacuum pump.
Preferably, the bottom of the aerial cooler, cooling water cooler and freezing water cooler is provided with hydrophobic
Pond；The hydrophobic pond for freezing the hydrophobic pond of water cooler, the hydrophobic pond of cooling water cooler and aerial cooler passes through pipeline successively
It is connected to after series connection with the hot well of condenser.
Further, aerial cooler is provided on the pipeline between the hydrophobic pond and hot well of the aerial cooler to dredge
Water pump；Cooling water cooler is provided on pipeline between the hydrophobic pond of cooling water cooler and the hydrophobic pond of aerial cooler to dredge
Water pump；It freezes and is provided with freezing water cooler on the pipeline between the hydrophobic pond of water cooler and the hydrophobic pond of cooling water cooler
Drainage pump.
Further, pacify respectively in the hydrophobic pond of the aerial cooler, cooling water cooler and freezing water cooler
Equipped with aerial cooler liquidometer, cooling water cooler liquidometer and freezing water cooler liquidometer.
Preferably, the inlet of the vacuum pump is equipped with temperature monitoring.
Preferably, the aerial cooler uses the oblique top formula finned tube exchanger cooling by cross-ventilation, air
The colling end of cooler is provided with cooling blower.
Preferably, the cooling water cooler uses the heat exchanger housing of tube of circulating water, cooling water cooler
The 5th valve is provided on chilled(cooling) water return (CWR).
Preferably, the freezing water cooler is changed using the cooling box type of Heating,Ventilating and Air Conditioning or refrigerating device refrigeration water
Hot device freezes and is provided with the 6th valve on the chilled water circuit of water cooler.
A kind of control method of the steam turbine condenser pumped vacuum systems with cooling device, includes the following steps,
When environment temperature is lower than 15 DEG C, the first valve, the second valve and the 4th valve are turned off, and third valve is opened,
Cooling water cooler and freezing water cooler do not put into operation, by the on-condensible gas containing vapor of stream-jet ejector in air
It cools in cooler, the on-condensible gas already below 15 DEG C is directly entered vacuum pump by third valve；
When the temperature that vacuum pump inlet temperature monitoring device measures is higher than 15 DEG C, the first valve, the 4th valve are opened, is closed
Third valve is closed, cooling water cooler puts into operation, by the cooling on-condensible gas of aerial cooler further in cooling water cooler
It inside cools, the on-condensible gas lower than 15 DEG C is directly entered vacuum pump by valve；
When the temperature that vacuum pump inlet temperature monitoring device measures is still higher than 15 DEG C, the second valve is opened, closes the
Four valves, freezing water cooler put into operation, by the cooling on-condensible gas of aerial cooler and cooling water cooler further cold
Freeze in water cooler and cool, the on-condensible gas lower than 15 DEG C is directly entered vacuum pump.
Preferably, the water of aerial cooler condensation returns hot well, cooling water cooling by aerial cooler drainage pump by drain pipe
But the water of device condensation returns aerial cooler drain pipe by the drain pipe water cooler drainage pump that is cooled, freezing water cooler condensation
Water water cooler drainage pump be frozen by drain pipe return cooling water cooler drain pipe.
Compared with prior art, the invention has the following beneficial technical effects:
The present invention by using by from the on-condensible gas come out in condenser after stream-jet ejector, into vacuum pump
The preceding processing mode for increasing three-level cooling device, cooperates each valve very easily to carry out cutting for cooling device according to actual needs
It changes, the temperature into steam in vacuum pump can be effectively ensured, improve security reliability；I.e. before on-condensible gas enters vacuum pump first
Successively by aerial cooler, cooling water cooler and freezing water cooler, wherein aerial cooler relies solely on sky in winter
Operating temperature needed for gas convection current can reach vacuum pump, without increasing other equipment, without increase station service；In spring and autumn
Season can put into blower when relying solely on cross-ventilation and cannot achieve vacuum pump operating temperature requirements, force pair by air
Stream cools down to realize；When to summer, when Forced Air Convection is still unable to reach vacuum pump operating temperature requirements, cooling can be put into
Water cooler realizes further cooling, final to realize when temperature requirement still reaches to that not then, freezing water cooler can be put into
The requirement of the long-term design temperature operation of vacuum pump, improves the service life of vacuum pump；Simultaneously as it is cold to have passed through front air
But the cooling of device and cooling water cooler, cooling extent can greatly reduce in freezing water cooler cooling procedure, will not make
The plant consumption of Cheng Tai great.
The present invention, which is used, is equipped with hydrophobic pond in the bottom of aerial cooler, cooling water cooler and freezing water cooler, with
Just the loss of high-quality working-medium water is reduced as far as possible, and passes through aerial cooler drainage pump, cooling water cooler drainage pump, freezing
Hydrophobic final whole is returned hot well by water cooler drainage pump, effectively reduces loss, environmental protection and saving.
The present invention by installing air in aerial cooler, cooling water cooler and freezing water cooler water-supply-pipe respectively
Cooler liquidometer, cooling water cooler liquidometer, the mode for freezing water cooler liquidometer, can effectively prevent hydrophobic water surface mistake
High bring adverse effect.
The present invention is used installs real time temperature monitoring device at vacuum pump inlet, can be in time according to vacuum pump Temperature of Working
The switching of each cooling device is carried out,.
The present invention, as aerial cooler, can have by using by the cooling oblique top formula finned tube exchanger of cross-ventilation
Effect improves heat exchange efficiency, and the colling end of aerial cooler is provided with cooling blower, aerial cooler can be cooperated to carry out cold
But operation, securely and reliably, high-efficiency and economic.
The present invention uses the heat exchanger housing of tube of circulating water as cooling water cooler, using Heating,Ventilating and Air Conditioning or system
The cooling heat exchanger housing of tube of cool equipment chilled water can effectively improve heat exchange efficiency, chilled(cooling) water return (CWR) as freezing water cooler
With the 5th valve 19 and the 6th valve 21 are respectively arranged on chilled water circuit, be convenient for control piper, it is convenient and reliable.
Detailed description of the invention
Fig. 1 is system schematic of the invention.
Fig. 2 is three-level cooling device partial schematic diagram of the present invention.
In figure: steam turbine 1, stream-jet ejector 2, condenser 3, hot well 4, aerial cooler 5, cooling water cooler 6, freezing
Water cooler 7, vacuum pump 8, aerial cooler drainage pump 9, cooling water cooler drainage pump 10, freezing water cooler drainage pump
11, aerial cooler liquidometer 12, cooling water cooler liquidometer 13, freezing water cooler liquidometer 14, temperature monitoring 15,
First valve 16, the second valve 17, third valve 18, the 5th valve 19, the 4th valve 20, the 6th valve 21.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
A kind of steam turbine condenser pumped vacuum systems with cooling device of the present invention, including vacuum pump 8 and three are successively
Connected cooling device specifically includes aerial cooler 5, cooling water cooler 6 and freezing water cooler 7；It further include steam turbine
1, stream-jet ejector 2, condenser 3, hot well 4 and the pipeline for connecting all parts；The penult high temperature of the steam turbine 1
High pressure pumping outlet is connect by pipeline with the jet orifice of stream-jet ejector 2, and the steam exhaust outlet of steam turbine 1 passes through pipeline and condensation
The entrance of device 3 connects；The outlet of the condenser 3 is connect by pipeline with the air inlet of stream-jet ejector 2, and heat is also connected with
Well 4；The work spout of the stream-jet ejector 2 is connect by pipeline with the entrance of vacuum pump 8；The stream-jet ejector 2
Cooling device is installed on pipeline between vacuum pump 8；The steam exhaust of steam turbine 1 is stored in hot well after condensing within the condenser
In, on-condensible gas enters the air inlet of stream-jet ejector 2, a small amount of high temperature at 1 penult of steam turbine under the action of vacuum pump
High pressure pumping enters the jet orifice of stream-jet ejector 2；
Wherein, the aerial cooler 5 is a kind of oblique top formula finned tube exchanger cooling by cross-ventilation, in wing
Piece heat exchanger bottom end is equipped with drain pipe, and aerial cooler liquidometer 12 is equipped in drain pipe, monitors hydrophobic liquid level position in real time
It sets；
Wherein, the hydrophobic bottom of the tube of the aerial cooler 5 is equipped with drain water piping, and drain water piping is equipped with aerial cooler
Drainage pump 9 returns hot well 4 for hydrophobic.
Wherein, the cooling water cooler 6 is a kind of heat exchanger housing of tube using circulating water, is installed in its bottom end
There is drain pipe, cooling water cooler liquidometer 13 is installed in drain pipe, monitors hydrophobic liquid level position in real time.
Wherein, the hydrophobic bottom of the tube of the cooling water cooler 6 is equipped with drain water piping, and drain water piping is equipped with cooling water cooling
But device drainage pump 10 returns aerial cooler drain pipe for hydrophobic.
Wherein, the freezing water cooler 7 is a kind of cooling using Heating,Ventilating and Air Conditioning or Special refrigerating equipment chilled water
Heat exchanger housing of tube is equipped with drain pipe in its bottom end, and freezing water cooler liquidometer 14, real time monitoring are equipped in drain pipe
Hydrophobic liquid level position.
Wherein, the hydrophobic bottom of the tube of the freezing water cooler 7 is equipped with drain water piping, and drain water piping is equipped with freezing water cooling
But device drainage pump 11 returns cooling water cooler drain pipe for hydrophobic.
Wherein, the temperature monitoring 15 is connect with master control room, and temperature feedback result determines the first valve 16, the second valve
17, third valve 18, the 5th valve 19, the 4th valve 20, the opening time of the 6th valve 21 and aerial cooler 5, cooling water
Cooler 6 puts into operation the time with freezing water cooler 7.
In this preferred embodiment, as shown in Figure 1 and Figure 2, the present invention in the process of running, is gone out by the steam exhaust of 1 one end of steam turbine
The pipeline that mouth is connect with 2 jet orifice of stream-jet ejector is another by steam turbine 1 to 2 jet orifice input service steam of stream-jet ejector
The pipeline that one end steam exhaust outlet is connect with 3 entrance of condenser handles steam exhaust feeding condenser 3, the on-condensible gas generated after processing
It is sent into stream-jet ejector 2 through 2 air inlet of stream-jet ejector, when the temperature of the surroundings is low, the first valve 16, the second valve 17, the
Five valves 19, the 6th valve 21 of the 4th valve 20 are turned off, and third valve 18 is opened, cooling water cooler 6, freezing water cooler
7 do not put into operation, cool in aerial cooler 5 by the on-condensible gas containing vapor of stream-jet ejector 2, condensation
Water returns hot well 4 by aerial cooler drainage pump 9 by drain pipe, and the on-condensible gas already below 15 DEG C is straight by third valve 18
It taps into vacuum pump 8；
When the temperature that 8 inlet temperature monitor 15 of vacuum pump measures is higher than 15 DEG C, the first valve 16, the 5th valve are opened
19, the 4th valve 20 closes third valve 18, and cooling water cooler 6 puts into operation, by the cooling on-condensible gas of aerial cooler 5
It further cools in cooling water cooler 6, the water of condensation returns sky by the drain pipe water cooler drainage pump 10 that is cooled
Gas Cooler drain pipe, the on-condensible gas lower than 15 DEG C are directly entered vacuum pump 8 by the 4th valve 20；
When the temperature that 8 inlet temperature monitor 15 of vacuum pump measures is still higher than 15 DEG C, the second valve the 17, the 6th is opened
Valve valve 21 closes the 4th valve 20, and freezing water cooler 7 puts into operation, cold by aerial cooler 5 and cooling water cooler 6
But on-condensible gas further cools in freezing water cooler 7, and the water of condensation is frozen water cooler by drain pipe and dredges
Water pump 11 returns cooling water cooler drain pipe, and the on-condensible gas lower than 15 DEG C is directly entered vacuum pump 8.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term " bottom ", "upper", "lower"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is only the present invention and simplified description for ease of description, rather than indicates
Or imply signified device or element and must have a particular orientation, construct and operate for specific orientation, thus cannot understand
For the limitation to present invention protection content.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.It should be pointed out that pair
For those skilled in the art, without departing from the inventive concept of the premise, several deformations can also be made and changed
Into all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention
Protection scope within.
Claims (10)
1. a kind of steam turbine condenser pumped vacuum systems with cooling device, the steam exhaust of steam turbine (1) condense within the condenser
After be stored in hot well, on-condensible gas accesses the air inlet of stream-jet ejector (2), and pumping access is penetrated at steam turbine (1) penult
The jet orifice of vapour air ejector (2)；It is characterized by comprising the aerial coolers for being connected to stream-jet ejector (2) gas outlet in turn
(5), cooling water cooler (6) and freezing water cooler (7) and vacuum pump (8)；The gas outlet of the aerial cooler (5) passes through
First valve (16) is connect with cooling water cooler (6) air inlet, the second valve of gas outlet (17) of cooling water cooler (6)
It is connect with freezing water cooler (7) air inlet；
The first bypass that the gas outlet of the aerial cooler (5) is set third valve (18) is connect with vacuum pump (8),
The second bypass that the gas outlet of the cooling water cooler (6) is set the 4th valve (20) is connect with vacuum pump (8).
2. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 1, it is characterised in that:
Aerial cooler (5), cooling water cooler (6) and the bottom of freezing water cooler (7) is provided with hydrophobic pond；Freezing
The hydrophobic pond in the hydrophobic pond of water cooler (7), the hydrophobic pond of cooling water cooler (6) and aerial cooler (5) by pipeline according to
It is connected to after secondary series connection with the hot well (4) of condenser (3).
3. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 2, it is characterised in that:
Aerial cooler drainage pump (9) are provided on pipeline between the hydrophobic pond and hot well (4) of the aerial cooler (5)；It is cold
But cooling water cooler is provided on the pipeline between the hydrophobic pond of water cooler (6) and the hydrophobic pond of aerial cooler (5) to dredge
Water pump (10)；It is provided on pipeline between the hydrophobic pond of freezing water cooler (7) and the hydrophobic pond of cooling water cooler (6) cold
Freeze water cooler drainage pump (11).
4. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 2, it is characterised in that:
It the aerial cooler (5), cooling water cooler (6) and freezes in the hydrophobic pond of water cooler (7) and is separately installed with air
Cooler liquidometer (12), cooling water cooler liquidometer (13) and freezing water cooler liquidometer (14).
5. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 1, it is characterised in that:
The inlet of the vacuum pump (8) is equipped with temperature monitoring (15).
6. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 1, it is characterised in that:
The aerial cooler (5) using the oblique top formula finned tube exchanger cooling by cross-ventilation, aerial cooler (5) it is cold
But end is provided with cooling blower.
7. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 1, it is characterised in that:
The cooling water cooler (6) uses the heat exchanger housing of tube of circulating water, the chilled(cooling) water return (CWR) of cooling water cooler (6)
On be provided with the 5th valve (19).
8. a kind of steam turbine condenser pumped vacuum systems with cooling device according to claim 1, it is characterised in that:
The freezing water cooler (7) heat exchanger housing of tube cooling using Heating,Ventilating and Air Conditioning or refrigerating device refrigeration water, chilled water
The 6th valve (21) is provided on the chilled water circuit of cooler (7).
9. a kind of control method of the steam turbine condenser pumped vacuum systems with cooling device, which is characterized in that be based on right
It is required that having the steam turbine condenser pumped vacuum systems of cooling device described in any one of 1-8, include the following steps,
When environment temperature is lower than 15 DEG C, the first valve (16), the second valve (17) and the 4th valve (20) are turned off, third valve
Door (18) is opened, and cooling water cooler (6) and freezing water cooler (7) do not put into operation, contains water by stream-jet ejector (2)
The on-condensible gas of steam cools in aerial cooler (5), and the on-condensible gas already below 15 DEG C passes through third valve
(18) vacuum pump (8) are directly entered；
When the temperature that vacuum pump (8) inlet temperature monitoring device (15) measures is higher than 15 DEG C, the first valve (16), the 4th are opened
Valve (20) is closed third valve (18), and cooling water cooler (6) puts into operation, by aerial cooler (5) cooling on-condensible gas
It further cools in cooling water cooler (6), the on-condensible gas lower than 15 DEG C is directly entered vacuum by valve (20)
Pump；
When the temperature that vacuum pump (8) inlet temperature monitoring device (15) measures is still higher than 15 DEG C, open the second valve (17),
The 4th valve (20) is closed, freezing water cooler (7) puts into operation, cooling by aerial cooler (5) and cooling water cooler (6)
On-condensible gas further cools in freezing water cooler (7), and the on-condensible gas lower than 15 DEG C is directly entered vacuum pump
(8)。
10. a kind of control method of steam turbine condenser pumped vacuum systems with cooling device according to claim 9,
It is characterized in that, the water of aerial cooler (5) condensation is returned hot well (4) by drain pipe by aerial cooler drainage pump (9), it is cooling
The water of water cooler (6) condensation returns aerial cooler drain pipe by the drain pipe water cooler drainage pump (10) that is cooled, and freezes
The water of water cooler (7) condensation is frozen water cooler drainage pump (11) by drain pipe and returns cooling water cooler drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594032.3A CN109708486A (en) | 2018-12-25 | 2018-12-25 | A kind of steam turbine condenser pumped vacuum systems and control method with cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594032.3A CN109708486A (en) | 2018-12-25 | 2018-12-25 | A kind of steam turbine condenser pumped vacuum systems and control method with cooling device |
Publications (1)
| Publication Number | Publication Date |
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| CN109708486A true CN109708486A (en) | 2019-05-03 |
Family
ID=66258109
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| CN201811594032.3A Pending CN109708486A (en) | 2018-12-25 | 2018-12-25 | A kind of steam turbine condenser pumped vacuum systems and control method with cooling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176319A (en) * | 2020-09-01 | 2021-01-05 | 江苏微导纳米科技股份有限公司 | Powder coating device and powder coating method |
| CN114856734A (en) * | 2022-05-11 | 2022-08-05 | 郭兴军 | Steam turbine exhaust steam condensing system based on plate heat exchanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940255A (en) * | 2014-04-11 | 2014-07-23 | 张曙光 | Multistage steam jet vacuum-pumping system with double backpressure steam condensers |
| CN104520527A (en) * | 2012-05-24 | 2015-04-15 | Fmc康斯伯格海底股份公司 | Active control of subsea coolers |
| CN106121974A (en) * | 2016-06-30 | 2016-11-16 | 日照海达尔加气设备有限公司 | A kind of cryogenic energy utilization liquefied natural gas compressor and method |
| CN106643204A (en) * | 2017-01-05 | 2017-05-10 | 陆明 | Three-stage switchable steam jetting and vacuumizing system low in steam consumption |
| CN107165687A (en) * | 2017-06-30 | 2017-09-15 | 国电科学技术研究院 | A kind of flexibility cuts off the extraction for heat supply system and control method of low pressure (LP) cylinder |
| 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 |
-
2018
- 2018-12-25 CN CN201811594032.3A patent/CN109708486A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104520527A (en) * | 2012-05-24 | 2015-04-15 | Fmc康斯伯格海底股份公司 | Active control of subsea coolers |
| CN103940255A (en) * | 2014-04-11 | 2014-07-23 | 张曙光 | Multistage steam jet vacuum-pumping system with double backpressure steam condensers |
| CN106121974A (en) * | 2016-06-30 | 2016-11-16 | 日照海达尔加气设备有限公司 | A kind of cryogenic energy utilization liquefied natural gas compressor and method |
| CN106643204A (en) * | 2017-01-05 | 2017-05-10 | 陆明 | Three-stage switchable steam jetting and vacuumizing system low in steam consumption |
| CN107165687A (en) * | 2017-06-30 | 2017-09-15 | 国电科学技术研究院 | A kind of flexibility cuts off the extraction for heat supply system and control method of low pressure (LP) cylinder |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176319A (en) * | 2020-09-01 | 2021-01-05 | 江苏微导纳米科技股份有限公司 | Powder coating device and powder coating method |
| CN114856734A (en) * | 2022-05-11 | 2022-08-05 | 郭兴军 | Steam turbine exhaust steam condensing system based on plate heat exchanger |
| CN114856734B (en) * | 2022-05-11 | 2024-05-03 | 郭兴军 | Steam turbine exhaust steam condensing system based on plate heat exchanger |
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