Mechanical drying equipment, the switching device of each dryer equipment must, but how the switch on the role of manipulation in the dryer rotation? This Power Machinery Manufacturing Co., Ltd. Henan capacity of technical staff and to share with you After numerous experiments, summed up the switch from the role of the rotation of the dryer control board, rotary manipulation of the board KK switch, rotary group 1, group 2, group 3 electric tube heating. At this point, KM1, KM2, KM3 pull corresponding red indicator lights, electric tube start heating, the ammeter reading with a group, Group 2, three groups of inputs increase. Circulation fan is automatically activated with the KM1 closed; heating pipe under the control of the thermostat, automatic work.
Tianjin the Meijiang living property is a high tech
Security with police patrols, electric bikes and the name of the double flash grooming vehicles, it has become a hot topic in recent the Meijiang Peninsula Heights community residents. Moreover, the introduction of small-scale clean car to improve the efficiency of residential cleaning card from the door all the way \"credit card\" to go home and so on. Property services to enhance a notch to become the district\\ s new landscape, even the residents praise again and again: now the district, playing all high-tech!
The efficiency of raising a lot
Shorten the time to solve the problem
Posts in the forum of the owners of Royal Peninsula, a security with police electric patrol moped, the name of double flash patrols at night, \"click-through rate soared, many owners are replies to ask whether the district to introduce the\" secret weapon \". Upon inquiry, the reporter finally seen near the cell door post of the new property to configure electric patrol moped.
Although electric bikes, but the appearance of ordinary electric cars are not the same. The front of the front end of the red and blue LED lights, car back-end corresponding with a more eye-catching warning light. Moreover, the original vacant rear frame fitted with a white iron box, wrench, screwdriver and other tools which placed an emergency repair. After such a \"modified\" the original ordinary electric bikes, upgraded to today\\ s electric patrol police moped. Duty security guards wear uniforms riding a patrol car, you say, really quite the spirit!
Guo Jianhua, property manager, said that for security with the police to use the electric patrol moped is just implemented in the beginning of this year, a car cost more than 3000 yuan. Security also all kind of care, usually rub ground, ground maintenance, installation of warning lights is also a need for a separate charge, but since the start using the feedback we got good and original compared to the efficiency did raise a chunk of . \"
Security Gao told reporters that now patrol riding electric bikes, but more convenient. \"On the one hand more when on patrol have deterrent effect, the other when we divert vehicles not so tired.\" Said Gao, in fact they are by walking or riding a bike, the district itself, area and embarked on ten minutes are common owners encounter and what issues need to help solve, and ride electric bikes, 23 minutes arrived at the scene of emergencies such as water pipes burst and the like, but also for the residents to save a lot of time.
Security upgrade my heart more
District scene looked very handsome
Police use electric bikes from the security riding day patrol in the district, residents on this service improvements have a good evaluation. \"Looking very convenient, is well and good order of the district, our hearts are very pleased.\" Building 8, the very fact that, after this saw lit the lights of the patrol car thief at night, certainly I whispered safety factor added layer of insurance, residents more at ease.
\"Looking at these security guards on duty uniformed riding a patrol car, think property management has a new mental outlook of the upscale district does need a fresh way, and doubtless will be more to attract high-tech elements.\" Owners Xu said the hardware level of property services to enhance the soft power is certainly at a higher level, residents and property companies will form a virtuous cycle, more and more harmonious.
The reporter learned that electric bikes are generally used by the duty squad leader on duty patrol Kong security patrols used to mainly play the role of inspections of the temporary vehicle timely follow-up.
\"Our district ID card out of the normal parking spaces for owners of credit card the management of the whole intelligent and sometimes there will be unloading the car or send the car of the front door for the elderly, we will release, but will send a timely follow-up of security guards, security guards before rely on leg muscles, or ride a bike, on the one hand, physical exertion, on the other hand deal with the problem or not timely follow-up, now deal with the problem time security work so hard not before, all very satisfied. \"property manager Guo Jianhua said that from now, the patrol electric bikes to enhance the service quality of a property, and deter the role of the outside law and order situation.
Intelligent hardware facilities
The district where the additions to many
In addition to the Royal Peninsula community recently introduced electric bikes to patrol, and many communities are also intelligent hardware has been transformation. Century the Indus apartment residents on recent residential parking lots and roads, often able to find a small-scale clean car is responsible for the daily road cleaning. Property after a reporter asked the company was informed that, which is to improve the cleaning quality of the district, specially in terms of road cleaning arrangements. With this large \"vacuum cleaner\" the road of the district clean and really a lot.
Intelligent transformation, many communities are beginning to promote the access card door, the corridor access cards, elevator cartoon with \"One Card\" service. Property to enhance service standards, the owners have higher satisfaction, and ultimately achieve a win-win results. In addition, one of a variety of intelligent information services is also the embodiment of the Intelligent Community, such as home things that need repair, or need to ask the part-time, can log on to the district website, click on the relevant services, fill in the reason, location, determine the time other relevant information, submit an application, just at home waiting for, and the persons will be able to-door services on time. Seen, this \"high tech\" intelligent \", our property management will take some time.
Belt conveyor 34 coal handling system problems and solutions
The power plant coal handling system until the coal to the boiler room of raw coal bucket, the entire production process, from the coal unloading device, the belt conveyor to the coal handling system to play a role similar to the human meridian, carry out the body. If in the process of production work, belt failure, the entire coal handling system will lead to not function properly, causing many problems. Build a comprehensive self-diagnostic intelligent diagnosis adjusted belt protection system, the boiler island construction and development must need.
Belt conveyors are widely used in coal handling systems and industrial sectors, higher transmission efficiency, provide an effective means for delivery of bulk materials. Long-term tracking and guidance of the company past the conveyor units, summed up the belt conveyor in the production failures common faults generally have slip belt, overload, pin broken. In order to solve these practical problems in the past time, the Group of Experts, technicians, engineers and front line staff, the integrated use of existing knowledge, skills, information and methods, introduce new methods, new ideas, continuous conveyor belt reform and innovation to provide solutions to practical problems in the production work to provide scientific, effective solutions to customers.
As we all know, belt conveyors in the production process will occur dowel pin fracture, the motor still running, the belt with the rollers stop stop. Due to lack of necessary measures of protection chain stop, follow-up belt continues to run, resulting in the accumulation of coal in the section on the fault belt, in addition to coal coal is too heavy, a lot of accumulation, resulting in the motor and cycloidal drum rotation and the stop belt, conveyor belt slip phenomenon, which will certainly lead to belt wear, fracture, or even a serious accident, affecting the smooth conduct of the coal handling system.
In addition, the detection of coal handling system, most of the power plant there is a lot of drawbacks, due to fuel transport belt conveyor is only the most basic overcurrent protection, and the motor current value when the analog data acquisition using the cable from the motor transmission power distribution room to monitor the operating room, the data show that using an analog current meter head, many inaccurate; know the belt is running in order to monitor the operating room (no blocking coal), also on-site installation of multiple cameras, video surveillance systems observe the functioning of the belt. The harsh conditions of such site (pulverized coal, dust and strong current interference) to some extent, result in poor image video signal propagation back, monitoring the operational status of the results are unsatisfactory.
Hualong Thermal Equipment Co., Ltd., the project team is committed to innovation and development of an intelligent protection system of belt conveyor, belt conveyor machine skid, belt, and overload, pin-off failure for automatic detection, diagnosis, and issued audible and visual alarm signal, to make a timely warning and protection. Failure to stop the implementation of the fault belt in front of the machine and interlock control, to avoid pressure coal belt happens to achieve automation, robust and intelligent control of power plant coal handling system to reduce manual saving equipment maintenance funds.
\"Quality is life, service is the soul, the user first, contributing to society\" is our aim, Zhengzhou Hualong thermal equipment Co., Ltd. is willing to help you out!
Analysis of the characteristics and performance introduction of two gear pumps
The gear pump is characterized by: small size, light weight, simple structure, easy fabrication, low price, reliable, good self-priming performance is not sensitive to oil pollution, easy maintenance.
The disadvantages are: flow and pressure fluctuation, noise, displacement immutable.
The internal gear pump gear pump with the outside compared to mainly small size, small flow pulsation, noise, etc., but processing difficulties, limited use. Engagement at the point of tooth contact line has been playing high-separated, and the role of the low pressure chamber, and therefore do not need to set up a dedicated gear pump with flow agencies.
An external gear pump flow
Displacement: V = πDhB = 2πm2zBclamp ferrule
In fact the interdental groove volume slightly larger than the size of the tooth, it is usually taken 3.33, then: V = 6.66zm2B
Flow rate: q = Vnηv = 6.66zm2Bnηv
The above calculation is the average flow of the external gear pump.
Features:
1) gear pump, the average flow and number of teeth is proportional to, but proportional to the square of the modulus.
2) gear pump flow and tooth width is proportional to the tooth width increased by the gear hydraulic radial forces suffered increased restrictions generally take the tooth width B = (6 ~ 10) m, hypertension take a small value.
3) improve the speed can increase the pump flow, but subject to the limitations of the pump suction performance. Gear pump speed is generally in the 1000 ~ 1500r/min.
4) In addition, in a positive displacement hydraulic pump, gear pump, flow pulsation.
2, the gear pump of the phenomenon of trapped oil and unloading
★ trapped oil Harm:
Closed the dead volume of the pressure in the sharp rise in the bearing to be a lot of additional load, while producing the undesirable phenomenon of power loss and liquid heat; air will precipitate was dissolved in a liquid bubble cavitation phenomenon, caused by vibration and noise.
★ eliminate the phenomenon of trapped oil:sanitary fittings
Unloading slot opening in the side plate of the gear pump or floating sleeve. Non-symmetric, we must ensure that at any time do not make the suction chamber and the pressure oil chamber of collusion; gear pump can not be reversed.
3, the gear pump leak and compensation measures
Gear pump there are three areas: the leak the gear end and end caps; between the holes and gears meshing at the top and the shell of the tooth. Leakage gear end and end caps, 75 to 80 percent of the total amount of leakage.
4, measures to improve the external gear pump pressure
End clearance compensation principle:
Pressure oil chamber pressure of the oil in the gear pump is diverted to the outside of the floating sleeve to use a special channel, the role of a certain shape and size of the area, resulting in the hydraulic force, so that the sleeve pressure to the gear face, this force must be large role in the force of the sleeve inside the gear end, in order to ensure in a variety of pressure, the sleeve is always automatically snapping the gear end, reducing by the end of the gear pump leakage and achieve the purpose of improving the pressure.
5, radial unbalanced force
★ hazards:
Radial unbalanced force should make axis bending, the tooth tip contact with the shell, and accelerated bearing wear, reduce bearing life.
★ measures:sanitary pipe fittings
In order to reduce the impact of the radial unbalanced force, usually take the approach to reduce the pressure port.
To reduce the number of teeth of the gears, so reducing the tip diameter, pressure area is reduced.
Appropriate to increase the radial clearance.
6, the internal gear pump
The internal gear pump there are two kinds of involute gear pump and cycloidal gear pumps.
Cycloidal gear pumps, also known as a rotor pump, two gears, a difference of one tooth.
The new energy market to break new grounds
New Energy is a vast step-up transformer market. New energy such as wind power and photovoltaic power stations will bring a potential market of 50,000 units per year step-up transformer, the equivalent of 1.5 times 2008 sales.
amorphous alloy step-up transformer in the new energy market will accomplish much. Despite the slightly more expensive than the silicon step-up transformer price, but considering the increase in electricity sales, and new energy tariff is expensive, the use of amorphous alloy step-up transformer to improve power generation project s internal rate of return, and 1-3 years to recover early The initial investment premium part.Isolating Transformer
The overseas has been the application case. 2008 GE shares production of amorphous step-up transformer has been the world s largest wind power operator, IBERDROLA for the four wind farms in the United States.
new energy market, there was no institutional barriers. Grid Corporation has a huge number of production silicon steel production enterprises of the step-up transformer, amorphous step-up transformer to overcome conflicts of interest, market development difficult. New energy projects developed by the large-scale Power Generation Group, Power Generation Group is the basic transmission and distribution equipment assets, there is no institutional barriers.Industrial transformer
technical reserves are mature, a significant first-mover advantage. Confidence has developed products for wind farms and photovoltaic power plants, and has installed PV power plant to Shanghai World Expo venues. In the grid on the market of first-mover advantage can be extended to the new energy market.
Welding transformer
Profit forecast only consider the contribution of the power grid market, does not contain the new energy market, will get the order progress to increase the profit forecast. This year, the stock rose only 7 percent, far behind the power equipment index rose 60 percent. We believe that the market growth prospects of the company in the grid and the new field of energy lack of knowledge, the stock also compensatory growth momentum.
The austriamicrosystems release new DC DC boost converter output voltage of 42V low voltage inputs
Communications, industrial, medical and automotive analog IC designers and manufacturers austriamicrosystems company recently released the high-voltage DC / DC boost converter AS1343, LCD or OLED display bias by the low voltage input, thereby optimizing the single-cell for the overall performance of the power application.Isolating Transformer
AS1343 by two or one AA battery-powered, respectively, can provide 24V, 40mA or 12V, 30mA drive capability, and provides an adjustable output voltage from 5.5V to 42V. AS1343 from 0.9V to 3.6V single-input power supply, a fixed switching frequency of 1MHz allows the use of miniature, low profile inductors and capacitors to minimize PCB footprint. This constant frequency switching makes the output noise low and predictable, and easy to filter out.Welding transformer
Standard Linear at austriamicrosystems Division Marketing Director Walter Moshammer, said: "currently on the market almost all the portable applications are used in LCD and OLED. These applications are battery-powered, so need to use the highly efficient boost converter to provide 12V or more high output voltage, moderate current of about 20mA. even in the case of the maximum output voltage, austriamicrosystems AS1343 is still able to achieve very high efficiency in order to meet these needs. In addition, the product directly supports single or dual battery applications. "
AS1343 can also achieve the automatic power-saving operation, in order to enhance light load efficiency. In addition, the internal micro-power design can work when the supply current to only 22? A. AS1343 power consumption is so low, greatly extending the battery life of the terminal application. , AS1343 features a shutdown mode, supply current in shutdown is less than 1? A, and completely cut off the output.Industrial transformer
AS1343 output voltage accuracy of 2% of its power ready signal indicates the actual output voltage and the nominal voltage deviation is less than 10%. It is ideal for a variety of different OLED or LCD power supply, or other applications that require high output voltage applications in handheld devices.
TBEA the first extras high voltage step up transformers is of great significance
China s first special high-voltage step-up transformer companies account for UHV commanding heights. Step-up transformer Group s Shenyang recently successfully developed China s first UHV step-up transformer, the step-up transformer rated voltage of 1100 kV, three-phase rated capacity of 1.2 million KVA can be directly output of one million kilowatts of generating units voltage is increased from 27 kV to 1100 kV. The step-up transformer to increase transmission capacity, reducing equipment investment, State Grid UHV construction speed, high-voltage step-up transformer will make special rapid increase in demand. At present, TBEA the first in the country to master the technology, the company in the competition in the initiative.Transformer company
Overseas markets to reduce the risk of price competition. Have the total package of qualifications and competence of the few companies in overseas construction projects as a domestic, Tebian electrician in overseas markets has been relatively smooth, the proportion of total company revenue of more than 20%, effectively reducing the domestic step-up transformer and other equipment prices the risk of competition.
The rapid development of new energy performance of a new growth point. Recently with the Xi an High-tech Zone "special variable electrical Xi an New Energy and Industrial Park Project contract, the park is built will have 500MW / solar cell component 500MW / year, 1000MW / high-power inverters, photovoltaic system integration 300MW / year capacity. After the company with 1500 tons / year polysilicon project is expansion in the 2015 long-term goal is 12,000 tons / year.AVR for Generator
The coal resources are the company another potential bright spot. Company holding 86% of the Tianchi Energy currently has a total of 10 mine exploration rights of the South open pit and tent ditch, the reserves of about 13 billion tons, the company expects 2012 to reach 10 million tons of mining scale uses include the pithead power stations, cogeneration and coal to gas and other coal chemical project is expected in 2012 can begin to reflect the performance.Welding transformer
Expected 2011 EPS of 1.20 yuan, maintaining an "overweight" rating. UHV construction of domestic and overseas markets are expected, under the premise of not to consider the coal resources to generate revenue, we maintain the company s earnings forecast, expected 2010/11/12 EPS were 0.90,1.20 and 1.53 yuan, an increase of clear and maintain the company to "overweight" rating.
U S LIMITOQUE electric vacuum actuators
Imported vacuum actuator debugging steps
1, the tools they need to debug: socket wrench, needle nose pliers, experience in the electric pen, multimeter,
Screwdriver, watch screwdriver, mini-dedicated within the six-party wrench.
2, first stop the vacuum actuator power, manually turning the handwheel, so that the position of the valve in 50%
(Observe the location of the sniper stem), 1,000 ohm coaxial output of the potentiometer 500
Ohms or so, if not about 500 ohms, loose coaxial screws of the potentiometers
Rotary potentiometer until you get the right readings.
3, to the vacuum actuator power transmission, vacuum actuator is in local control, press the open
On / off button, quickly press the stop button, and observe the direction of motor rotation, such as motorglow plug
Can reverse, down access to the L1, L2, L3 in two-phase.
4, the electrical limit adjustment: (first tune off the limit, after the open limit)
(1) off the electrical limit adjustment: Hand shake the hand wheel, so that the valve in the fully closed position
Fully closed valve Ban or not OK. Into the middle of the clutch, and half turn, so
Adjust the projectile, and then rotating the word "CLOSE" to adjust the screw, so off to
Limit switch, press and hold the switch to trip. Valve off place, while off the trip switchSolenoid Throttle Valve
Not action, then down off the adjustment screw to rotate off, to suppress the limit switch; if the Commissioner
Travel switch ahead of time, going against the shut off to the rotation adjustment screw to to the valve is fully closed
Off limit switch just action. After adjustment, be sure to make the clutch reset, and then
Adjust the open electrical limit.
(2) open the adjustment of electrical limit: (off electrical limit adjustment)
(3) If the limit too late, along the direction of the rotation of the adjustment screw to adjust; if the limit is premature
Going against the direction of the adjustment screw to rotate tune.
5, the torque limit switch adjustment: open, off to the torque limit switch adjustment each
A dial, the dial indicates the size, need to be adjusted to open to shut to the forceVacuum Actuator
Moment limit switch screw. (Torque limit switches for valve shut and the valve stuck,
Like no adjustments)
6, the adjustment of the feedback signal of the signal: with the general ZKJ electric vacuum actuator adjustments.
The specific models welcome calls to buy.



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