Loading...
RSS
Toggle navigation
Home
About Journal
Editorial Board
Editorial Board
Youth Editorial Board
Publication Ethics
Journal Online
Just Accepted
Current Issue
Archive
Most Read Articles
Most Downloaded Articles
Most Cited Articles
Subscription
Advertisement
Contact Us
中文
Table of Content
25 May 2014, Volume 36 Issue 5
Previous Issue
Next Issue
Discussion of difficulties and solutions way when low load operation in the distributed energy station
CHEN Jing 1，HE Binbin 1，FAN Jie 2
2014, 36(5): 1-2.
Asbtract
(
293
)
Related Articles
|
Metrics
Abstract:Low load operation is a common problem, as an example of affected many large scale building like distributed energy stations. With the distributed energy station in Huadian Industrial Park chosen as a typical case were analyzed, we studied the causes and potential impacts of low load operation, and then proposed resolution plan form the aspects of main machine selection, system designing, operation and management etc., serving as a reference for similar projects.
Feasibility study on the integration of distributed energy and electric automobile
RAN Zhijun，KONG Fei
2014, 36(5): 3-5.
Asbtract
(
329
)
Related Articles
|
Metrics
Abstract:The necessity of electric vehicle development, and explored the feasibility of the integration of distributed energy and electric autos were introduced. Based on a thorough investigation on the time sequence of electric automobile market development and the construction scales of distributed energy stations, the detailed integration construction plan was proposed.
Optimization of operation mode of water circulating pump
LOU Weixing
2014, 36(5): 6-7.
Asbtract
(
486
)
Related Articles
|
Metrics
Abstract:At present, in many power plants, the operation mode of the water circulating pumps is not very reasonable, and the economic efficiency of the units was affected. The startup and shutdown data of the water circulating pump under conditions of different load and different circulating water temperature were analyzed. Using the consumption analysis method, the optimized operation mode of the water circulating pump was found, which can be used as reference for energy conservation and consumption reduction in power plants.
The Construction and implementation of centralized control evaluation system for the power plant
WANG Haibo
2014, 36(5): 8-10.
Asbtract
(
362
)
Related Articles
|
Metrics
Abstract:To remedy the defects of traditional small index evaluation, some technicians designed power plant centralized control evaluation system. The practical application of the system has effectively assessed and examined power plant attendants, succeeded in stimulating those attendants to take initiatives to adjust and enhance unit operation parameters, and finally achieved energy saving and cost reduction in power plants.
Research on application of double ended ball mill to pulverize lignite for 600MW unit
WANG Shouyang
2014, 36(5): 11-13.
Asbtract
(
377
)
Related Articles
|
Metrics
Abstract:The Hunan Huadian Changsha Power Generation Company Limited had a try to use the double ended ball mill to mill the blended coal, in which the Indonesia lignite with low calorific value and high volatiles was mixed by certain ratio. A process of “to mill different coal by different mill separately and to mix and burn the different pulverized coals in furnace” was adopted. The system application features, which include how to control the explosion of the coal pulverizing system, how to ensure safety of the persons and equipments and how to prevent cooking in the boiler, were investigated. In order to improve the economic efficiency of the blended lignite combustion and to standardize the operation mode, according to actual conditions, the separately mill process, the blended mill process and the blended ratio were tested and compared with each other. The test results show that to adopt the process of “to mill different coal by different mill separately and to mix and burn the different pulverized coals in the furnace” to burn the lignite is feasible.
Study on performance of pipe in prevention of deposition of particulate matter in liquid LBE
LIU Liang, ZHOU Tao, YANG Xu, SU Ziwei
2014, 36(5): 14-16.
Asbtract
(
315
)
Related Articles
|
Metrics
Abstract:According to the characteristics of cylindrical pipe, a pipe suitable for preventing particle deposition in leadbismuth eutectic (LBE), which is used as the coolant in nuclear reactor, is proposed. With the help of thermophoresis model, the deposition prevention capacity of the pipe under different temperature difference and different particle size was calculated respectively. The calculation shows that the antideposition capacity of the pipe increases alone with increase of temperature difference between the pipe surface and the coolant, and the antideposition capacity of the pipe decreases alone with increase of diameter of the particulate matter. The temperature difference influences on the antideposition capacity more greatly than the particle size. Using the pipe, the fine particle deposition in LBE on pipe wall will decreases, the flowing property and the heat transfer performance of LBE can be improved.
Reformation of mill separator of boiler and analysis on performance test
NIU Liquan, ZHOU Chao
2014, 36(5): 17-19.
Asbtract
(
329
)
Related Articles
|
Metrics
Abstract:There were defects in the mill of Ningxia Jingneng Ningdong Power Generation Company Limited, which include the larger resistance, the poor uniformity of the pulverized coal, the insufficient output and others. It is needed to reform the mill separator to solve above problems. Combining with the features of the mill separator, the parameters of the mill separator before and after reformation, such as the fineness of the pulverized coal, the uniformity index, the power consumption of the mill and others, were compared. The feasibility of the mill separator reformation was analyzed. After the mill separator was reformed, better result was obtained.
Analysis on elimination oil leakage fault of vacuum oil purifier by new centrifugal flash dehydration technology
ZHAO Zhixiang 1, WANG Wenbing 2
2014, 36(5): 21-22.
Asbtract
(
276
)
Related Articles
|
Metrics
Abstract:In the vacuum oil purifier, the bubbles occur easily and cause the oil leakage accident. The reasons of oil leakage accident were analyzed. The insufficient of the existing oil leakage preventing measures was expounded. The basic principle of the new centrifugal flash dehydration technology was described briefly. The experiment proved that by the new technology, the fast dehydration can be realized, the oil and the gas can be separated thoroughly, and the bubble problem of the vacuum oil purifier can be solved. So the oil leakage accident potential was eliminated.
Application of variable frequency control technology in condensate pump system
WEI Shengluan
2014, 36(5): 23-27.
Asbtract
(
387
)
Related Articles
|
Metrics
Abstract:The present flow adjusting method is mostly throttling, and due to the output power of the motor can not be adjusted in large range, there is large energy dissipation in this method. The variable frequency reformation of the auxiliary machines is one of main means of power plants to save energy and reduce consumption. The AC variable frequency speed control technology is acknowledged as a most valuable speed control and power consumption reducing technology due to its excellent speed control function and remarkable energysaving effect. Combing with the application of the variable frequency speed control technology in condensate pump of 2×150MW unit of the Panzhihua Branch of Huadian Sichuan Power Generation Company Limited and the analysis on obtained energysaving effect, the function of the variable frequency speed control technology in energysaving and consumption reducing of thermal power enterprises was expounded further.
Technical reformation of circulating water system for switching over between unit system and common header system
KE Zhao
2014, 36(5): 28-29.
Asbtract
(
754
)
Related Articles
|
Metrics
Abstract:In order to achieve the goals of energy saving and consumption reducing of circulating water pump, in Hubei Xisaishan Power Generation Company Limited, a communication valve was added between the circulating water systems of two units. So the operation mode of the circulating water pumps of the two units can be switched over between the unit system and common header system, and the safety and economic efficiency of the two units were improved.
Application of sound wave gas temperature measuring technology in 600MW coalfired boiler
LI Haihao, LI Ming, WANG Gangfeng
2014, 36(5): 30-32.
Asbtract
(
422
)
Related Articles
|
Metrics
Abstract:The principle of the sound wave gas temperature measuring technology was introduced. The application of the sound wave gas temperature measuring system in a 600MW coalfired boiler was expounded. In the application process, the fault of abnormal display of measured temperature was found, and the measured data could not be introduced into DCS of the unit. The reasons of the problems were analyzed, and the relevant solutions were proposed.
Analysis on application of wiring diagram error correcting and checking system in provincelevel power dispatching center
CAO Feng1, WANG Xiang2
2014, 36(5): 33-35.
Asbtract
(
227
)
Related Articles
|
Metrics
Abstract:The security and stability of the power system are always the main objectives of the system operation. In order to ensure the power grid errorfree operation, the realtime error correcting and checking has become a key requirement. In “large operation” support system, the highsoon realtime database is used as information storage stack to record the operation status of the equipments realtime, and the wiring diagram error correcting and checking system is used to detect the faults immediately and reduce the error probability. Simultaneously, the system can provide realtime error information early warning and auxiliary judgment, which are helpful for power grid dispatchers to improve the correctness of fault information judgment.
Preparative technique and process of lime emulsion used in water treatment
LIU Jin，JIA Shuang
2014, 36(5): 36-38.
Asbtract
(
406
)
Related Articles
|
Metrics
Abstract:The lime emulsion is an important raw material of water treatment system. The technological factors and technical standard of lime emulsion preparation process were introduced in detail. Several typical preparation processes used in China were reviewed. The two current advanced preparation processes and their features were analyzed.
Analysis on vibration of drain pipe of water level valve and prevention measures
ZHANG Jinsong
2014, 36(5): 39-41.
Asbtract
(
355
)
Related Articles
|
Metrics
Abstract:According to the operation features of the oncethrough boiler startup system, combining with the pipe vibration principle and the site practical situation, the reasons causing vibration of drain pipe of water level valve were found out; and effective measures to eliminate the vibration were proposed.
Analysis on hazard of grounding fault of throughcore screw rod of drytype transformer
LI Feng, HUANG Kai
2014, 36(5): 42-42.
Asbtract
(
335
)
Related Articles
|
Metrics
Abstract:The multipoint grounding fault of transformer is one of common faults of transformer. The reason of grounding fault of throughcore screw rod of drytype transformer in SDIC Qinzhou Electric Power Company Limited was analyzed , the hazard of the grounding fault was discussed. The maintenance, repair and preventing measures were proposed.
Research and implementation of operation mode of intelligent gateway in substation
YANG Xiaofan, GAO Zhiyong
2014, 36(5): 43-46.
Asbtract
(
412
)
Related Articles
|
Metrics
Abstract:In order to meet the information transmission demand of smart grid and to ensure the massage transmission between the master station and substations of power grid to be “no omissions and no additional” as far as possible, the defects of the intelligent gateway in double main gateways operation mode were analyzed, and a logical channel redundant scheme, in which the two intelligent gateways in the substation operate in “standalone mode for lower layer and mainstandby mode for upper layer”, was proposed. The implementation mechanism of the scheme was analyzed briefly. The mainstandby mechanism between main station and substations was normalized. The reliability and the veracity of the electric power information transmission were improved.
Economic analysis on GTL technology of producing specialty oil using shale gas
HU Xiaofu, MA Yuelong, XIAO Keqin, ZHANG Xin
2014, 36(5): 47-51.
Asbtract
(
293
)
Related Articles
|
Metrics
Abstract:The important position of the shale gas in global energy resources was introduced. Considering the downstream comprehensive utilization, depending on the comparison with centralized transmission technology by pipeline and liquefied natural gas (LNG) technology, the significance of the GTL (gas to liquid) technology was pointed out, and two ways to produce specialty oil using shale gas of GTL technology were described. The classification of GTL products was summarized. The market economical efficiency of the GTL oils was analyzed, and the development direction of the GTL technology was described clear.
Reformation of adding bypass flue for booster fan
ZHANG Jianke, ZHOU Liqun
2014, 36(5): 52-55.
Asbtract
(
514
)
Related Articles
|
Metrics
Abstract:In Fujan Huadian Kemen Power Generation Company Limited, a bypass flue was added for the booster fan of unit No.3. The relevant test of booster fan bypass operation was carried out. According to the test result, the unit economical efficiency before and after reformation was evaluated, and the evaluation conclusion is that to add the bypass flue is useful for energy conservation and consumption reduction, and the cost of the reformation can be recovered for a short period.
Application of electrolyzed seawater chlorination equipment in Huizhou LNG Power Generation Company
XIA Wenwu
2014, 36(5): 56-57.
Asbtract
(
433
)
Related Articles
|
Metrics
Abstract:The sea creatures grow and adhere to inside of seawater pipe and cooling equipments, which leads to increasing of seawater flow resistance, decreasing of heat exchange efficiency and formation of biological corrosion. Taking Guangdong Huizhou LNG Power Generation Company Limited as example, the application of the electrolyzed seawater chlorination device to produce sodium hypochlorite was introduced. The application effect shows that to use the device in the seawater system of the coastal power plant can effectively prevent the adherence and growing of the sea creatures.
Technical reformation of online air and pulverized coal monitoring system of 1000MW boiler
YAO Xiujuan
2014, 36(5): 58-60.
Asbtract
(
277
)
Related Articles
|
Metrics
Abstract:In the 1000MW boiler of Huadian International Zouxian Power Plant, due to the restriction of the air and flue system structure design and the own measuring conditions of the dynamic pressure measuring device, it is difficult to measure the spout air speed of the boiler combustion system correctly. So the spout air speed of the primary air of the boiler could not be monitored correctly, and the pulverized coal combustion condition in the furnace could not be monitored effectively. The online air and pulverized coal monitoring system of the 1000MW boiler was reformed. The MVC series power plant boiler online air and pulverized coal monitoring system manufactured by Apexview Technology (Beijing) Corporation Limited. was installed in the primary air system of the boiler, and the difficulty in measuring of the spout air speed of primary air of the boiler correctly was overcome thoroughly.
Optimized operation of SCR system of 1036MW unit and deNOx efficiency diagnosis
CHEN Weiwu 1, HU Mulin 1, CHEN Min 2
2014, 36(5): 61-65.
Asbtract
(
340
)
Related Articles
|
Metrics
Abstract:In the SCR system, the nonuniformity of the ammonia spraying and the shorter catalyst life cause the local ammonia spaying in inlet to be too much, and this leads to higher ammonia escape rate and lower deNOx efficiency. The ammonia spraying device of the SCR system of the 1036MW unit in Huaneng Haimen Power Plant was reformed. The experiment of ammonia spraying optimized adjustment for the inlet ammonia injection grid was carried out. After the optimized adjustment, the distribution uniformity of NOx in SCR system outlet was improved, and the influence of the higher local ammonia escape rate on downstream air preheater was controlled effectively. Then better result was obtained.
Special stainless steel lining of wet stack in FGD system of coalfired power plant for corrosion prevention
OUYANG Minghui, LIU Huan’an, YE Jixuan
2014, 36(5): 66-71.
Asbtract
(
427
)
Related Articles
|
Metrics
Abstract:The corrosion property of wet stack and selection of anticorrosion material were discussed. Based on the experiment, the anticorrosion property, the mechanical property and the welding performance of the superaustenitic stainless steel XDS5, which is used as special anticorrosion lining of wet stack, were analyzed. The analysis result shows that XDS5 is an excellent material for anticorrosion lining of wet stack. At last, the thin plate pasting process was introduced. The widespread application of alloy in wet stack and even whole wet FGD system is useful for stability and reliability of the system operation, and the life cycle costs of the equipments can be reduced.
Reformation of electric heater for damper sealing air of flue gas desulphurization system
LI Peng
2014, 36(5): 72-73.
Asbtract
(
357
)
Related Articles
|
Metrics
Abstract:In order to prevent dew formation in flue gas, the air temperature in outlet of sealing air fan in FGD system must not be lower than 100℃, and the electric heater must run continuously, which consumes a lot of electric energy. In order to save energy and reduce consumption and reduce the operation cost of FGD system, the electric heater for damper sealing air was reformed in Xinjiang Huadian Hongyanchi Power Plant. The steam source of auxiliary service steam with poor quality was used to heat the sealing air, and the electric heater was replaced. A lot of fund can be saved in year due to this reformation.
Economy analysis and energy saving reformation of air concentrating system in the power plant
LIU Tao,CHENG Feng
2014, 36(5): 74-75.
Asbtract
(
390
)
Related Articles
|
Metrics
Abstract:Air concentrating system in a power plant had the problem of energy waste. With the premise of its safety and reliability, the air concentrating system was modified to be energy saving. After the reformation, lower energy consumption and larger economic benefits is to be realized.
Author Center
Online Submission
Citation Format
Copyright Agreement
Template
Author Guidelines
Review Center
Peer Review
Editor Work
Editor-in-Chief
Office Work
Journal Online
Just Accepted
Current Issue
Archive
Most Read Articles
Most Downloaded Articles
Most Cited Articles
