CN114544189A - Turbine test system device based on energy recovery and test method thereof - Google Patents
Turbine test system device based on energy recovery and test method thereof Download PDFInfo
- Publication number
- CN114544189A CN114544189A CN202210172350.0A CN202210172350A CN114544189A CN 114544189 A CN114544189 A CN 114544189A CN 202210172350 A CN202210172350 A CN 202210172350A CN 114544189 A CN114544189 A CN 114544189A
- Authority
- CN
- China
- Prior art keywords
- test
- turbine
- air
- gas
- exhaust
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 296
- 238000011084 recovery Methods 0.000 title claims abstract description 50
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 70
- 239000000446 fuel Substances 0.000 claims abstract description 63
- 239000002918 waste heat Substances 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000033228 biological regulation Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 132
- 230000006835 compression Effects 0.000 claims description 70
- 238000007906 compression Methods 0.000 claims description 70
- 238000000605 extraction Methods 0.000 claims description 52
- 238000002485 combustion reaction Methods 0.000 claims description 42
- 230000005540 biological transmission Effects 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 230000003584 silencer Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 description 16
- 230000001502 supplementing effect Effects 0.000 description 11
- 239000002699 waste material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention provides a turbine test system device based on energy recovery and a test method thereof, wherein the turbine test system device comprises an air source generating unit, a test turbine test unit, an exhaust waste heat recovery unit and a load regulation and measurement unit; the air source generating unit is used for providing a driving air source and a cooling air source for the test turbine and recovering the shaft power of the test turbine; the test turbine test unit is used for adjusting test parameters of a driving air source and a cooling air source of the test turbine; the exhaust waste heat recovery unit is used for recovering the exhaust waste heat of the test turbine and heating the air and the fuel entering the air source generating unit; and the load adjusting and measuring unit is used for adjusting and measuring the shaft power of the test turbine. The invention solves the problems of high energy consumption and low comprehensive energy utilization rate of the rotary turbine flowing and cooling test system, and has the characteristic of high economical efficiency.
Description
Technical Field
The invention belongs to the technical field of gas turbines, and relates to a turbine test system device based on energy recovery and a test method thereof.
Background
The gas turbine is used as an energy conversion device with wide application, has the advantages of less pollution, high efficiency, strong flexibility, compact structure and the like, is flexible to operate, and is widely applied to the field of power generation. In order to achieve higher gas turbine efficiency, the initial temperature of the turbine needs to be raised continuously, and then the high-temperature parts of the turbine need to be cooled effectively by air. In order to verify the influence of cooling air mixing on the aerodynamic performance of a turbine stage and the influence of a rotating state on the cooling effect of a turbine moving blade, a rotating turbine test bed needs to be established to carry out high-temperature rotating turbine flow and cooling test research.
The existing flow and cooling test of the high-temperature rotating gas turbine is developed, the pneumatic performance of a cooling air mixing turbine level and the cooling effect of a moving blade in a rotating state are measured in a high-speed rotating state, the exhaust of the test turbine is completely cooled through cooling water, high cold source loss exists, the output work of the turbine shaft end is directly consumed through a hydraulic dynamometer, effective energy recovery means and measures are not adopted for the exhaust residual energy and the shaft work of the test turbine by a test system, the test process has high energy loss, and the comprehensive energy utilization rate of the test system is low.
CN112485033A discloses a gas turbine combustion and turbine comprehensive cold effect test system and a test method, comprising a fuel system, a main air supply system, a cooling air supply system, a control system and a data acquisition system; the main air is output to the combustion test section after being subjected to pressure regulation, the fuel is also input to the combustion test section after being pressurized, the main air and the fuel are mixed and combusted in the combustion test section to generate high-temperature and high-pressure gas, the real working environment of a combustion chamber during the operation of a gas turbine is simulated, the combustion test of the gas fuel is carried out, the high-temperature exhaust of the combustion test section and the cold air of a cooling air supply system enter the comprehensive cold effect test section of the turbine blade, the actual working environment of a turbine part of the gas turbine is simulated, the cooling effect and the characteristics of the blade are obtained by measuring the gas, cold air parameters and the wall temperature of the outer surface of the blade, the high-temperature exhaust of the combustion test section is recycled by the test system, two different tests are simultaneously completed by the test system, the test efficiency is improved, and the cost of the test system is reduced.
Therefore, how to provide a turbine test device, can carry out energy recuperation to the turbine, promote turbine test device's economic nature, become the technical problem that present urgent need solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a turbine test system device based on energy recovery and a test method thereof, which are used for fully recycling the shaft power of a test turbine, solve the problems of high energy consumption and low comprehensive energy utilization rate of a rotary turbine flow and cooling test system and have the characteristic of high economical efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a turbine test system device based on energy recovery, which comprises an air source generating unit, a test turbine testing unit, an exhaust waste heat recovery unit and a load regulation and measurement unit.
And the air source generating unit is used for providing a driving air source and a cooling air source for the test turbine and recovering the shaft power of the test turbine.
And the test turbine test unit is used for adjusting test parameters of a driving air source and a cooling air source of the test turbine.
And the exhaust waste heat recovery unit is used for recovering the exhaust waste heat of the test turbine and heating the air and the fuel entering the air source generating unit.
And the load adjusting and measuring unit is used for adjusting and measuring the shaft power of the test turbine.
According to the invention, the exhaust waste heat recovery unit is adopted to carry out waste energy gradient recovery and utilization on the exhaust of the test turbine, the energy recovery rate of sensible heat of the exhaust reaches more than 60%, the cold source temperature of the test system device is greatly reduced, the absolute energy utilization efficiency of the test system device is effectively improved, the problems of high energy consumption and low comprehensive energy utilization rate of the test system device are solved, and the economy of the test system is greatly improved by innovating the waste energy utilization mode of the test system.
In addition, the air source generating unit is adopted to provide compressed air for the test system device, the test mode that the test turbine shaft power is completely consumed by the hydraulic dynamometer in the traditional mode is changed, the shaft power recovery of the test turbine is more than 40% through innovating the energy utilization mode of the test system device, the problem of low comprehensive energy utilization efficiency of the test system device is solved, the test power cost is greatly reduced, the test level of the flow and cooling of the rotary turbine is improved, and the test system device has good economy.
As a preferable technical scheme of the invention, the gas source generating unit comprises a gas compression device and a combustion generating device which are sequentially connected, the gas compression device is in transmission connection with the test turbine, and air is compressed by the gas compression device and then enters the combustion generating device to be mixed with fuel and combusted to drive the test turbine.
Preferably, the drive connection of the gas compression device to the test turbine comprises a first shifting clutch.
The gas compression unit is used for pressurizing air to certain parameters and then sending the air to the combustion generating device, and simultaneously providing low-parameter cooling air extraction and high-parameter cooling air extraction for the test turbine; and the first shifting clutch is used for connecting and disconnecting the shaft work transmission between the gas compression device and the test turbine.
Preferably, the gas compression device is also in transmission connection with a variable frequency starting device, and the variable frequency starting device is in transmission connection with a motor.
It should be noted that the variable frequency starting device is used for adjusting the rotating speed and power of the motor to meet the starting control requirement of the gas compression device.
Preferably, the transmission connection mode of the gas compression device and the variable-frequency starting device comprises a second shifting clutch.
The second shifting clutch is used for connecting and disconnecting the gas compression device and the variable frequency starting device.
As a preferred technical solution of the present invention, the pipeline connecting the gas compression device and the combustion generating device includes a compressed air shutoff valve and a compressed air regulating valve connected in sequence along the gas flow direction.
Preferably, a compressed air flow meter, a compressed air thermometer and a compressed air pressure gauge are further arranged on a pipeline connecting the gas compression device and the combustion generation device.
Preferably, the gas outlet of the gas compression device is further connected with an exhaust bypass, and the exhaust bypass is connected with a discharge device.
The exhaust device is used for meeting the requirement of environmental emission of gas in the exhaust bypass.
Preferably, the exhaust bypass comprises a bypass shutoff valve, a bypass gas regulating valve and a compressed air silencer which are arranged in sequence along the gas flow direction.
In a preferred embodiment of the present invention, the combustion generation device is provided with a fuel line, and the fuel line is provided with a fuel shut-off valve, a fuel control valve, and a fuel pre-processor in this order along an intake direction.
The fuel preprocessor is used for filtering and taking out impurities in the fuel, and provides guarantee for safe and reliable combustion of the combustion generating device, the combustion generating device is used for generating combustion reaction between compressed air and the fuel to generate high-temperature fuel gas with certain parameters (the pressure is 1.5 MPa-2.5 MPa, and the temperature is 1100-1700 ℃), and the parameter control of the high-temperature fuel gas is realized by adjusting the fuel supply amount and the excess air coefficient of the combustion reaction.
Preferably, a fuel thermometer, a fuel flow meter and a fuel pressure gauge are further arranged on the fuel pipeline.
As a preferred technical scheme of the present invention, the gas compression device is provided with at least two air extraction pipelines, the air extraction pipelines are connected to the test turbine, and the air extraction pipelines are provided with air extraction shutoff valves.
The air extraction pipeline is used for providing a low-parameter cooling air source for the test turbine, and further can adjust the air extraction parameters of the air extraction pipeline by adjusting the operation working point and the air extraction position of the gas compression device according to the requirements of test working conditions, for example, the air extraction pipeline respectively comprises a first air extraction pipeline and a second air extraction pipeline, and the cooling air source parameters provided by the first air extraction pipeline are 0.4-0.9 MPa and 140-200 ℃; the parameter of a cooling gas source provided by the second air extraction pipeline is 0.9 MPa-1.6 MPa and is 250-310 ℃.
Preferably, the gas extraction pipeline is divided into a first pipe section and a second pipe section along the gas flow direction, the gas extraction shutoff valve is arranged on the first pipe section, and the first pipe section is further provided with a gas extraction thermometer, a gas extraction pressure gauge and a gas extraction flow meter.
Preferably, the test turbine test unit comprises an air extraction cooling regulator and a cooling air regulating valve which are sequentially arranged on the second pipe section along the air inlet direction, and the air extraction cooling regulator is used for cooling and depressurizing the extracted air.
Preferably, the test turbine test unit further comprises a cooling air thermometer and a cooling air pressure gauge disposed on the second section.
Preferably, the test turbine test unit comprises a driving air source regulator, a driving air source thermometer and a driving air source pressure gauge which are arranged on a connecting pipeline of the combustion generating device and the test turbine.
The driving air source regulator is used for regulating the driving air source generated by the combustion generating device to the main air inlet parameter of the test turbine in a temperature and pressure reducing mode.
As a preferred technical scheme of the invention, the exhaust waste heat recovery unit comprises an air preheater, a fuel heater and an exhaust cooler which are sequentially arranged on an air outlet pipeline of the test turbine along the air outlet direction.
The method has the advantages that the exhaust waste heat of the test turbine is recovered, the air preheater preheats the air inlet of the gas compression device to set parameters (100-200 ℃), and the first-stage utilization of the exhaust waste heat of the test system device is carried out; further, a fuel heater recovers the exhaust enthalpy of the test turbine, preheats the inlet fuel of the combustion generating device to set parameters (120-200 ℃), and performs secondary utilization of the test system exhaust residual energy; the exhaust cooler is used for further cooling the test turbine exhaust (140-220 ℃) after heat exchange to system design parameters (50-80 ℃); in addition, the recovery rate of sensible heat of tail gas in the invention reaches more than 60%, and the recovery rate of sensible heat of tail gas can reach more than 80% by adjusting the sequence and parameters of the air and fuel complementary energy recovery heat exchanger.
Preferably, the exhaust waste heat recovery unit further comprises an exhaust silencer and an exhaust discharging device which are arranged at the tail end of the test turbine exhaust pipeline.
The exhaust silencer is used for reducing the noise level of the exhaust of the test turbine to an environmental standard allowable value; and the gas outlet discharge device is used for finishing the environmental discharge of the test turbine tail gas after the temperature reduction and silencing treatment.
According to a preferred technical scheme of the invention, the load regulation measuring unit comprises a hydraulic dynamometer, and the hydraulic dynamometer is in transmission connection with the test turbine.
Preferably, the transmission connection mode of the hydraulic dynamometer and the test turbine comprises a third gear shifting clutch.
The hydraulic power measuring device is used for consuming and balancing the surplus shaft power of the test system device and has the function of measuring the shaft power of the test turbine; the gas compression device recovers the shaft work of the test turbine, the supercharged combustion generating device needs compressed air, the recovery rate of the shaft work of the test turbine reaches 30-50%, the effective recovery and utilization of the residual work of the test turbine are realized, the shaft work load loss of the hydraulic power measuring device is reduced, and the power cost in the test process is reduced.
The invention adopts the technical scheme of three clutches, and solves the problems of gear shifting clutch among the hydraulic dynamometer, the test turbine, the gas compression device and the motor and flexible switching of shaft power transmission modes; the gas compression device has a multi-mode switching function of a motor driving mode and a test turbine driving mode; the test turbine has a multi-mode switching function of a speed-up mode and a power output mode; the hydraulic dynamometer has a multi-mode switching function of an idle load mode, a residual power consumption load mode and a full power load mode. In the shaft power measuring stage, the hydraulic dynamometer is switched to a full-power load mode, and the requirements of testing the shaft power measurement under the rated working condition and the variable working condition of the turbine are met; in the non-shaft power measurement stage, the hydraulic dynamometer is switched to a residual power consumption load mode, so that the load loss of the test system is greatly reduced. The invention creates the operation mode of the turbine test system device and solves the problem of insufficient operation flexibility of the traditional test system device.
As a preferred embodiment of the present invention, the turbine test system further includes an auxiliary unit, the auxiliary unit includes a cooling water circulation supplementary device and a lubricating oil circulation supplementary device, the cooling water circulation supplementary device is used for providing cooling water for the devices in the turbine test system, and the lubricating oil circulation supplementary device is used for providing lubricating oil for the devices in the turbine test system.
The lubricating oil circulation supplementing device is used for providing lubricating oil for each device in a turbine test system device and recovering, filtering and cooling lubricating oil return oil of each device, for example, comprises a test turbine, a gas compression device, a hydraulic power measuring device and other devices, and before each device of the turbine test system device is started, the lubricating oil circulation supplementing device is put into operation and has reliable oil supply conditions; the cooling water circulation supplementing device is used for providing circulating cooling water for a test turbine, a gas compression device, a hydraulic power measuring device, an exhaust cooler, a driving gas source regulator, an air exhaust cooling regulator and the like, and providing the circulating cooling water according to the requirements of other auxiliary devices of the test system device.
It should be noted that, in the present invention, a detection device and a control device may be further added, the detection device and the control device are respectively and independently electrically connected to the equipment in the turbine test device, the detection device respectively detects the operation parameters of the equipment, and the control device is configured to receive the operation parameters of each equipment, and adjust and control the equipment according to preset parameters, so as to implement automatic operation of the turbine test system device.
In a second aspect, the present invention provides a turbine testing method using the energy recovery based turbine testing system apparatus according to the first aspect, the turbine testing method comprising:
the air source generating unit provides an air source for the test turbine and drives the test turbine to work, after the test turbine works stably, the air source generating unit recovers shaft power of the test turbine, the load adjusting and measuring unit adjusts and measures the shaft power of the test turbine, and the exhaust waste heat recovering unit recovers exhaust of the test turbine, preheats and heats air and fuel entering the air source generating unit.
As a preferred technical solution of the present invention, the turbine test method specifically includes the steps of:
the method comprises the following steps that (I) a first gear shifting clutch and a second gear shifting clutch are closed, a third gear shifting clutch is opened, a variable frequency starting device controls a motor to drive a gas compression device to work, a motor driving mode of the gas compression device is started, the gas compression device drives a test turbine to rotate synchronously through the first gear shifting clutch, after the input power of the gas compression device is balanced with the output shaft power of the test turbine, the second gear shifting clutch is opened, the test turbine driving mode of the gas compression device is started, when the shaft power of the test turbine is larger than the input power of the gas compression device, the third gear shifting clutch is closed, and a hydraulic dynamometer tests the shaft power of the test turbine;
and (II) when the rated working condition and the variable working condition shaft power of the test turbine are measured, the first gear shifting clutch is disconnected, the second gear shifting clutch is closed, the gas compression device enters a motor driving mode, and the hydraulic dynamometer is used for testing the real-time shaft power of the test turbine.
The system refers to an equipment system, or a production equipment.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the exhaust waste heat recovery unit is adopted to carry out waste energy gradient recovery and utilization on the exhaust of the test turbine, the energy recovery rate of sensible heat of the exhaust reaches more than 60%, the cold source temperature of the test system device is greatly reduced, the absolute energy utilization efficiency of the test system device is effectively improved, the problems of high energy consumption and low comprehensive energy utilization rate of the test system device are solved, and the economy of the test system is greatly improved by innovating the waste energy utilization mode of the test system.
In addition, the air source generating unit is adopted to provide compressed air for the test system device, the test mode that the test turbine shaft power is completely consumed by the hydraulic dynamometer in the traditional mode is changed, the shaft power recovery of the test turbine is more than 40% through innovating the energy utilization mode of the test system device, the problem of low comprehensive energy utilization efficiency of the test system device is solved, the test power cost is greatly reduced, the test level of the flow and cooling of the rotary turbine is improved, and the test system device has good economy.
Furthermore, the invention adopts the technical scheme of three clutches, so that the gear shifting clutch among the hydraulic dynamometer, the test turbine, the gas compression device and the motor and the flexible switching of the shaft power transmission mode are solved; the gas compression device has a multi-mode switching function of a motor driving mode and a test turbine driving mode; the test turbine has a multi-mode switching function of a speed-up mode and a power output mode; the hydraulic dynamometer has a multi-mode switching function of an idle load mode, a residual work consumption load mode and a full power load mode. In the shaft power measuring stage, the hydraulic dynamometer is switched to a full-power load mode, and the requirements of testing the shaft power measurement under the rated working condition and the variable working condition of the turbine are met; in the non-shaft power measurement stage, the hydraulic dynamometer is switched to a residual power consumption load mode, so that the load loss of the test system is greatly reduced. The invention creates the operation mode of the turbine test system device and solves the problem of insufficient operation flexibility of the traditional test system device.
Drawings
FIG. 1 is a schematic diagram of an energy recovery based turbine test system configuration according to an embodiment of the present invention.
Wherein, 100-a gas source generating unit; 101-a first shifting clutch; 102-a gas compression device; 103-second shifting clutch; 104-an electric motor; 105-a variable frequency starting device; 106-compressed air shut-off valve; 107-compressed air regulating valve; 108-a compressed air flow meter; 109-compressed air thermometer; 110-a compressed air pressure gauge; 111-bypass shutoff valve 1; 112-bypass gas regulating valve; 113-compressed air silencer; 114-a discharge device; 115-fuel shutoff valve; 116-a fuel regulating valve; 117-fuel pre-processor; 118-a fuel flow meter; 119-fuel thermometer; 120-fuel gauge; 121-a combustion generating device; 122-first pump shut-off valve; 123-a first suction thermometer; 124-first suction pressure gauge; 125-a first extraction flow meter; 126-second bleed shutoff valve; 127-a second evacuated thermometer; 128-second suction pressure gauge; 129-a second extraction flow meter; 200-test turbine test unit; 201-test turbine; 202-driving an air source regulator; 203-driving gas source thermometer; 204-driving the air source pressure gauge; 205-a first bleed air cooling regulator; 206-first cooling air regulating valve; 207-first cooling air thermometer; 208-a first cooling air pressure gauge; 209-a second extraction cooling regulator; 210-a second cooling air adjustment valve; 211-a second cooling air thermometer; 212-a second cooling air pressure gauge; 300-an exhaust gas waste heat recovery unit; 301-air preheater; 302-a fuel heater; 303-exhaust cooling device; 304-an outlet silencer; 305-an outlet gas discharge device; 400-load adjustment measuring unit; 401-hydraulic dynamometer device; 402-a third shifting clutch; 500-an auxiliary unit; 501-lubricating oil circulation supplementing device; 502-cooling water circulation make-up.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
It should be understood by those skilled in the art that the present invention necessarily includes necessary piping, conventional valves and general pump equipment for achieving the complete process, but the above contents do not belong to the main innovation points of the present invention, and those skilled in the art can select the layout of the additional equipment based on the process flow and the equipment structure, and the present invention is not particularly limited to this.
The technical solution of the present invention is further explained by the following embodiments.
In one embodiment, the present invention provides an energy recovery based turbine test system apparatus, as shown in FIG. 1, comprising an air supply generating unit 100, a test turbine test unit 200, an exhaust heat recovery unit 300, and a load regulation measurement unit 400.
The air source generating unit 100 is configured to provide a driving air source and a cooling air source to the test turbine 201, and recover shaft power of the test turbine 201; the test turbine test unit 200 is used for adjusting test parameters of a driving air source and a cooling air source of the test turbine 201; the exhaust waste heat recovery unit 300 is configured to recover exhaust waste heat of the test turbine 201, and heat air and fuel entering the air source generating unit 100; the load adjustment measuring unit 400 is used for adjusting and measuring the shaft power of the test turbine 201.
Specifically, the air source generating unit 100 includes an air compressing device 102 and a combustion generating device 121 which are connected in sequence, the air compressing device 102 is in transmission connection with the test turbine 201, and air is compressed by the air compressing device 102 and then enters the combustion generating device 121 to be mixed with fuel and combusted to drive the test turbine 201. Furthermore, the transmission connection of the gas compression device 102 to the test turbine 201 comprises a first shifting clutch 101 for connecting and disconnecting the shaft power transmission between the gas compression device 102 and the test turbine 201.
Specifically, the gas compression device 102 is also in transmission connection with a variable frequency starting device 105, and the variable frequency starting device 105 is in transmission connection with a motor 104. Further, the transmission connection of the gas compression device 102 and the variable frequency starting device 105 comprises a second shifting clutch 103 for connecting and disconnecting the gas compression device 102 and the variable frequency starting device 105.
Specifically, the gas compression device 102 includes a compressed air shutoff valve 106 and a compressed air regulating valve 107 connected in sequence along the gas flow direction on the pipeline connecting with the combustion generating device 121. Further, a compressed air flow meter 108, a compressed air thermometer 109, and a compressed air pressure gauge 110 are also provided.
Specifically, the gas outlet of the gas compression device 102 is also connected with an exhaust bypass, and the exhaust bypass is connected with a discharge device 114. Further, the exhaust gas bypass includes a bypass shutoff valve 111, a bypass gas control valve 112, and a compressed air muffler 113, which are sequentially disposed in a gas flow direction.
Specifically, the combustion generation device 121 is provided with a fuel line on which a fuel shutoff valve 115, a fuel regulator valve 116, and a fuel pre-processor 117 are sequentially provided in the intake direction, and a fuel temperature gauge 119, a fuel flow meter 118, and a fuel pressure gauge 120 are further provided on the fuel line. The fuel preprocessor 117 is used for filtering and taking out impurities in the fuel, and provides guarantee for safe and reliable combustion of the combustion generating device 121, the combustion generating device 121 is used for generating combustion reaction between compressed air and the fuel to generate high-temperature fuel gas with certain parameters (the pressure is 1.5 MPa-2.5 MPa, and the temperature is 1100-1700 ℃), and the parameter control of the high-temperature fuel gas is realized by adjusting the fuel supply amount and the excess air coefficient of the combustion reaction.
Specifically, the gas compression device 102 is provided with at least two extraction pipelines, the extraction pipelines are connected to the test turbine 201, and the extraction pipelines are provided with extraction shutoff valves.
The air extraction pipeline is used for providing a low-parameter cooling air source for the test turbine 201, and further, the air extraction pipeline can adjust the air extraction parameters of the air extraction pipeline by adjusting the operation working point and the air extraction position of the gas compression device 102 according to the requirements of test working conditions, for example, the air extraction pipeline respectively comprises a first air extraction pipeline and a second air extraction pipeline, and the cooling air source parameters provided by the first air extraction pipeline are 0.4-0.9 MPa and 140-200 ℃; the parameters of a cooling gas source provided by the second air extraction pipeline are 0.9 MPa-1.6 MPa and 250-310 ℃.
Further, the air exhaust pipeline is divided into a first pipeline section and a second pipeline section along the air flowing direction, the air exhaust shutoff valve is arranged on the first pipeline section, the first pipeline section is also provided with an air exhaust thermometer, an air exhaust pressure gauge and an air exhaust flow meter, namely, the first air exhaust pipeline is provided with a first air exhaust shutoff valve 122, a first air exhaust thermometer 123, a first air exhaust pressure gauge 124 and a first air exhaust flow meter 125, and the second air exhaust pipeline is provided with a second air exhaust shutoff valve 126, a second air exhaust thermometer 127, a second air exhaust pressure gauge 128 and a second air exhaust flow meter 129.
Further, the test turbine test unit 200 includes an air-bleed cooling regulator and a cooling air regulating valve which are sequentially arranged on the second pipe section along the air-intake direction, and the air-bleed cooling regulator is used for cooling and depressurizing the bleed air. The test turbine test unit 200 further includes a cooling air temperature gauge and a cooling air pressure gauge disposed on the second section. The test turbine test unit 200 includes a driving air source regulator 202, a driving air source thermometer 203, and a driving air source pressure gauge 204, which are disposed on a connecting pipeline between the combustion generating device 121 and the test turbine 201. That is, the first extraction air line is provided with a first extraction air cooling regulator 205, a first cooling air adjustment valve 206, a first cooling air thermometer 207, and a first cooling air pressure gauge 208, and the second extraction air line is provided with a second extraction air cooling regulator 209, a second cooling air adjustment valve 210, a second cooling air thermometer 211, and a second cooling air pressure gauge 212.
Specifically, the exhaust gas waste heat recovery unit 300 comprises an air preheater 301, a fuel heater 302 and an exhaust gas cooler 303 which are sequentially arranged on an air outlet pipeline of the test turbine 201 along the air outlet direction; the method has the advantages that the exhaust waste heat of the test turbine 201 is recovered, the air preheater 301 preheats the air inlet of the gas compression device 102 to set parameters (100-200 ℃), and the first-stage utilization of the exhaust waste heat of the test system device is carried out; further, the fuel heater 302 recovers the exhaust enthalpy of the test turbine 201, preheats the fuel at the inlet of the combustion generating device 121 to set parameters (120-200 ℃), and performs second-stage utilization of the test system exhaust residual energy; the exhaust gas cooler 303 is used for further cooling the heat-exchanged exhaust gas (140-220 ℃) of the test turbine 201 to system design parameters (50-80 ℃); in addition, the recovery rate of sensible heat of tail gas reaches over 60 percent, and the recovery rate of sensible heat of tail gas can reach over 80 percent by adjusting the sequence and parameters of the air and fuel complementary energy recovery heat exchanger.
Further, the exhaust waste heat recovery unit 300 further comprises a gas outlet silencer 304 and a gas outlet discharge device 305, which are located at the end of the gas outlet pipeline of the test turbine 201. The exhaust silencer of the invention is used for reducing the noise level of the exhaust of the test turbine 201 to the allowable value of the environmental standard; and the exhaust gas discharge device 305 is used for finishing the environmental discharge of the tail gas of the test turbine 201 after the temperature reduction and silencing treatment.
Specifically, the load regulation measurement unit 400 includes a hydraulic dynamometer 401, the hydraulic dynamometer 401 is in transmission connection with the test turbine 201, and the transmission connection between the hydraulic dynamometer 401 and the test turbine 201 includes a third-gear shifting clutch. The hydraulic power measuring device 401 is used for consuming and balancing the surplus shaft power of the test system device and has the function of measuring the shaft power of the test turbine 201; the third gear shifting clutch 402 is used for connecting and disconnecting the shaft work transmission between the test turbine 201 and the hydraulic power measuring device 401, the gas compression device 102 recovers the shaft work of the test turbine 201, compressed air required by the supercharged combustion generating device 121, the shaft work recovery rate of the test turbine 201 reaches 30-50%, the effective recovery and utilization of the residual work of the test turbine 201 are achieved, the shaft work load loss of the hydraulic power measuring device 401 is reduced, and the power cost in the test process is reduced.
Specifically, the turbine test system device further comprises an auxiliary unit 500, wherein the auxiliary unit 500 comprises a cooling water circulation supplementing device 502 and a lubricating oil circulation supplementing device 501, the cooling water circulation supplementing device 502 is used for supplying cooling water to devices in the turbine test system device, only the circulating cooling water is supplied to the exhaust gas cooler 303 in fig. 1, the rest devices are not shown in the figure, the lubricating oil circulation supplementing device 501 is used for supplying lubricating oil to the devices in the turbine test system device, only the circulating lubricating oil is supplied to the hydraulic dynamometer 401 in fig. 1, and the rest devices are not shown in the figure.
The lubricating oil circulation supplementing device 501 is used for providing lubricating oil for each device in a turbine test system device and recovering, filtering and cooling lubricating oil return oil of each device, for example, comprises a test turbine 201, a gas compression device 102, a hydraulic power measuring device 401 and other devices, and before each device of the turbine test system device is started, the lubricating oil circulation supplementing device 501 is put into operation and has reliable oil supply conditions; the cooling water circulation supplementing device 502 is used for providing circulating cooling water for the test turbine 201, the gas compression device 102, the hydraulic dynamometer 401, the exhaust gas cooler 303, the driving air source regulator 202, the first extraction cooling regulator 205, the second extraction cooling regulator 209 and the like, and providing the circulating cooling water according to the requirements of other auxiliary devices of the test system device.
In another embodiment, the present invention further provides a turbine test method using the above turbine test system apparatus based on energy recovery, wherein the turbine test method specifically includes the following steps:
the method comprises the following steps that (I) a first shifting clutch 101 and a second shifting clutch 103 are closed, a third shifting clutch 402 is opened, a variable-frequency starting device 105 controls a motor 104 to drive a gas compression device 102 to work, a motor 104 driving mode of the gas compression device 102 is started, the gas compression device 102 drives a test turbine 201 to rotate synchronously through the first shifting clutch 101, after the input power of the gas compression device 102 is balanced with the output shaft power of the test turbine 201, the second shifting clutch 103 is opened, the test turbine 201 driving mode of the gas compression device 102 is started, when the shaft power of the test turbine 201 is larger than the input power of the gas compression device 102, the third shifting clutch 402 is closed, and a hydraulic dynamometer 401 tests the shaft power of the test turbine 201;
(II) when the rated working condition and the variable working condition shaft power of the test turbine 201 are measured, the first shifting clutch 101 is disconnected, the second shifting clutch 103 is closed, the gas compression device 102 enters the driving mode of the motor 104, and the hydraulic power measuring device 401 tests the real-time shaft power of the test turbine 201.
According to a specific embodiment, the exhaust waste heat recovery unit 300 is adopted to carry out waste energy gradient recovery and utilization on the exhaust of the test turbine 201, the energy recovery rate of sensible heat of the exhaust reaches more than 60%, the cold source temperature of a test system device is greatly reduced, the absolute efficiency of energy utilization of the test system device is effectively improved, the problems of high energy consumption and low comprehensive energy utilization rate of the test system device are solved, and the economy of the test system is greatly improved by innovating a waste energy utilization mode of the test system.
In addition, the air source generating unit 100 is adopted to provide compressed air for the test system device, the test mode that the shaft power of the test turbine 201 is completely consumed by a hydraulic dynamometer in the traditional mode is changed, the shaft power recovery of the test turbine is more than 40% through innovating the energy utilization mode of the test system device, the problem of low comprehensive energy utilization efficiency of the test system device is solved, the test power cost is greatly reduced, the flow and cooling test level of the rotary turbine is improved, and the test system device has good economy.
Furthermore, the invention adopts a three-clutch technical scheme, so that the gear shifting clutch among the hydraulic power measuring device 401, the test turbine 201, the gas compression device 102 and the motor 104 and the flexible switching of the shaft power transmission mode are solved; the gas compression device 102 has a multi-mode switching function of a driving mode of the motor 104 and a driving mode of the test turbine 201; the test turbine 201 has a multi-mode switching function of a speed-up mode and a power output mode; the hydraulic dynamometer 401 has a multi-mode switching function of an idle mode, a surplus power consumption load mode, and a full power load mode. In the shaft power measuring stage, the hydraulic dynamometer is switched to a full-power load mode, and the requirements of the test turbine 201 on the measurement of the rated working condition and the variable working condition shaft power are met; in the non-shaft power measurement stage, the hydraulic dynamometer is switched to a residual power consumption load mode, so that the load loss of the test system is greatly reduced. The invention creates the operation mode of the turbine test system device and solves the problem of insufficient operation flexibility of the traditional test system device.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. A turbine test system device based on energy recovery is characterized by comprising an air source generating unit, a test turbine test unit, an exhaust waste heat recovery unit and a load adjusting and measuring unit;
the air source generating unit is used for providing a driving air source and a cooling air source for the test turbine and recovering the shaft power of the test turbine;
the test turbine test unit is used for adjusting test parameters of a driving air source and a cooling air source of the test turbine;
the exhaust waste heat recovery unit is used for recovering the exhaust waste heat of the test turbine and heating the air and the fuel entering the air source generating unit;
and the load adjusting and measuring unit is used for adjusting and measuring the shaft power of the test turbine.
2. The turbine test system device according to claim 1, wherein the gas source generating unit comprises a gas compression device and a combustion generating device which are sequentially connected, the gas compression device is in transmission connection with the test turbine, air is compressed by the gas compression device and then enters the combustion generating device, and the air is mixed with fuel and combusted to drive the test turbine;
preferably, the transmission connection mode of the gas compression device and the test turbine comprises a first shifting clutch;
preferably, the gas compression device is also in transmission connection with a variable frequency starting device, and the variable frequency starting device is in transmission connection with a motor;
preferably, the transmission connection mode of the gas compression device and the variable-frequency starting device comprises a second shifting clutch.
3. The turbine test system device of claim 2, wherein the pipeline connecting the gas compression device and the combustion generating device comprises a compressed air shutoff valve and a compressed air regulating valve which are connected in sequence along the gas flow direction;
preferably, a compressed air flow meter, a compressed air thermometer and a compressed air pressure gauge are further arranged on a pipeline connecting the gas compression device and the combustion generating device;
preferably, the gas outlet of the gas compression device is also connected with an exhaust bypass, and the exhaust bypass is connected with a discharge device;
preferably, the exhaust bypass comprises a bypass shutoff valve, a bypass gas regulating valve and a compressed air silencer which are arranged in sequence along the gas flow direction.
4. The turbine test system device according to claim 2 or 3, wherein the combustion generating device is provided with a fuel pipeline, and the fuel pipeline is provided with a fuel shut-off valve, a fuel regulating valve and a fuel preprocessor in sequence along an air inlet direction;
preferably, a fuel thermometer, a fuel flow meter and a fuel pressure gauge are further arranged on the fuel pipeline.
5. The turbine test system device according to any one of claims 2 to 4, wherein at least two air suction pipelines are arranged on the gas compression device, the air suction pipelines are connected to the test turbine, and an air suction shut-off valve is arranged on the air suction pipeline;
preferably, the gas extraction pipeline is divided into a first pipe section and a second pipe section along the gas flowing direction, the gas extraction shutoff valve is arranged on the first pipe section, and the first pipe section is further provided with a gas extraction thermometer, a gas extraction pressure gauge and a gas extraction flow meter;
preferably, the test turbine test unit comprises an air extraction cooling regulator and a cooling air regulating valve which are sequentially arranged on the second pipe section along the air inlet direction, and the air extraction cooling regulator is used for cooling and depressurizing the extracted air;
preferably, the test turbine test unit further comprises a cooling air thermometer and a cooling air pressure gauge disposed on the second section;
preferably, the test turbine test unit comprises a driving air source regulator, a driving air source thermometer and a driving air source pressure gauge which are arranged on a connecting pipeline of the combustion generating device and the test turbine.
6. The turbine test system device according to any one of claims 1 to 5, wherein the exhaust waste heat recovery unit comprises an air preheater, a fuel heater and an exhaust gas cooler which are sequentially arranged on the test turbine air outlet pipeline along the air outlet direction;
preferably, the exhaust waste heat recovery unit further comprises an exhaust silencer and an exhaust discharging device which are arranged at the tail end of the test turbine exhaust pipeline.
7. The turbine test system apparatus of any of claims 1-6, wherein the load regulation measurement unit includes a hydraulic dynamometer, the hydraulic dynamometer drivingly coupled to the test turbine;
preferably, the transmission connection mode of the hydraulic dynamometer and the test turbine comprises a third gear shifting clutch.
8. The turbine test system assembly of any one of claims 1-7, further comprising an auxiliary unit including a cooling water circulation makeup assembly for providing cooling water to the devices in the turbine test system assembly and a lubrication oil circulation makeup assembly for providing lubrication oil to the devices in the turbine test system assembly.
9. A turbine test method using the energy recovery based turbine test system apparatus of any one of claims 1 to 8, the turbine test method comprising:
the air source generating unit provides an air source for the test turbine and drives the test turbine to work, after the test turbine works stably, the air source generating unit recovers shaft power of the test turbine, the load adjusting and measuring unit adjusts and measures the shaft power of the test turbine, and the exhaust waste heat recovering unit recovers exhaust of the test turbine, preheats and heats air and fuel entering the air source generating unit.
10. The turbine test method of claim 9, wherein the turbine test method specifically comprises the steps of:
the method comprises the following steps that (I) a first gear shifting clutch and a second gear shifting clutch are closed, a third gear shifting clutch is opened, a variable frequency starting device controls a motor to drive a gas compression device to work, a motor driving mode of the gas compression device is started, the gas compression device drives a test turbine to rotate synchronously through the first gear shifting clutch, after the input power of the gas compression device is balanced with the output shaft power of the test turbine, the second gear shifting clutch is opened, the test turbine driving mode of the gas compression device is started, when the shaft power of the test turbine is larger than the input power of the gas compression device, the third gear shifting clutch is closed, and a hydraulic dynamometer tests the shaft power of the test turbine;
and (II) when the rated working condition and the variable working condition shaft power of the test turbine are measured, the first gear shifting clutch is disconnected, the second gear shifting clutch is closed, the gas compression device enters a motor driving mode, and the hydraulic dynamometer tests the real-time shaft power of the test turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210172350.0A CN114544189A (en) | 2022-02-24 | 2022-02-24 | Turbine test system device based on energy recovery and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210172350.0A CN114544189A (en) | 2022-02-24 | 2022-02-24 | Turbine test system device based on energy recovery and test method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114544189A true CN114544189A (en) | 2022-05-27 |
Family
ID=81677741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210172350.0A Pending CN114544189A (en) | 2022-02-24 | 2022-02-24 | Turbine test system device based on energy recovery and test method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114544189A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0919707A1 (en) * | 1997-12-01 | 1999-06-02 | Asea Brown Boveri AG | Cooling-air cooling unit for gas turbines |
| CN102645339A (en) * | 2012-05-10 | 2012-08-22 | 株洲南方燃气轮机成套制造安装有限公司 | Gas turbine engine load test device and test method |
| CN105588712A (en) * | 2016-03-17 | 2016-05-18 | 上海发电设备成套设计研究院 | Turbine blade cooling effect test apparatus and method employing gas turbine compressor to extract air |
| CN110296001A (en) * | 2019-07-29 | 2019-10-01 | 上海电气燃气轮机有限公司 | The regulating system and method for combined cycle unit part-load efficiency |
| CN112360633A (en) * | 2020-11-26 | 2021-02-12 | 华能国际电力股份有限公司 | Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine |
| CN112485033A (en) * | 2020-11-23 | 2021-03-12 | 西安热工研究院有限公司 | Gas turbine combustion and turbine comprehensive cold effect test system and test method |
| CN113738687A (en) * | 2021-08-11 | 2021-12-03 | 杭州汽轮动力集团有限公司 | Gas compressor test bed with power recovery turbine |
-
2022
- 2022-02-24 CN CN202210172350.0A patent/CN114544189A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0919707A1 (en) * | 1997-12-01 | 1999-06-02 | Asea Brown Boveri AG | Cooling-air cooling unit for gas turbines |
| CN102645339A (en) * | 2012-05-10 | 2012-08-22 | 株洲南方燃气轮机成套制造安装有限公司 | Gas turbine engine load test device and test method |
| CN105588712A (en) * | 2016-03-17 | 2016-05-18 | 上海发电设备成套设计研究院 | Turbine blade cooling effect test apparatus and method employing gas turbine compressor to extract air |
| CN110296001A (en) * | 2019-07-29 | 2019-10-01 | 上海电气燃气轮机有限公司 | The regulating system and method for combined cycle unit part-load efficiency |
| CN112485033A (en) * | 2020-11-23 | 2021-03-12 | 西安热工研究院有限公司 | Gas turbine combustion and turbine comprehensive cold effect test system and test method |
| CN112360633A (en) * | 2020-11-26 | 2021-02-12 | 华能国际电力股份有限公司 | Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine |
| CN113738687A (en) * | 2021-08-11 | 2021-12-03 | 杭州汽轮动力集团有限公司 | Gas compressor test bed with power recovery turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111595605B (en) | Comprehensive experiment system for compressor and expander | |
| CN101169067A (en) | Engine apparatus with heat recovery system and relative heat recovery method | |
| CN109855147B (en) | Combined cycle device based on heat supply and power peak regulation coupling and operation method thereof | |
| CN102840026A (en) | System for recycling waste heat energy of exhaust gas of internal combustion engine by using air circulation | |
| CN104675521A (en) | Novel gas-steam combined cycle cooling, heating and power generation system | |
| CN113914951B (en) | Nuclear power plant peak shaving system based on compressed air energy storage and operation method | |
| JP2017505876A (en) | Compressor train with Stirling engine | |
| CN109869784B (en) | Combined cycle device for steam extraction integration and heat accumulation peak shaving coupling and operation method thereof | |
| CN211144758U (en) | Compressed air energy storage system | |
| CN115263476A (en) | Control method of supercritical carbon dioxide series double-turbine power generation system | |
| CN208793051U (en) | A kind of Organic Rankine Cycle and heat pump driven cogeneration system | |
| CN105065110A (en) | Organic rankine cycle and electric power dual-drive internal combustion engine pressurization system | |
| CN104564195B (en) | Afterheat of IC engine utilization system | |
| CN114544189A (en) | Turbine test system device based on energy recovery and test method thereof | |
| CN211573739U (en) | Compressed air energy storage system | |
| CN210088955U (en) | Combined cycle device for steam extraction integration and heat storage peak regulation coupling | |
| CN108087103A (en) | A kind of internal-combustion engine system | |
| CN114776411B (en) | Integrated heat storage coal-fired power generation system and working method | |
| CN210179723U (en) | Combined cycle device based on heat supply and electric power peak regulation coupling | |
| CN110685766A (en) | Engine waste heat and complementary energy comprehensive utilization system and method based on heat pump-heat engine bidirectional circulation | |
| CN104863713A (en) | Auxiliary power device for providing high-pressure gases through integration | |
| CN214221330U (en) | Biogas generator set | |
| CN107605618A (en) | Cogeneration units with heat reclaiming system | |
| CN210178429U (en) | Heating system for steam extraction integration of gas-steam combined cycle unit | |
| CN210088820U (en) | Combined cycle power peak regulation system based on steam extraction coupling heat storage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |