Protect doctor’s PTI series frequency converter of tile

Jan 13th, 2012

Brand: Protect the tile doctor

Name: Protect doctor’s PTI series frequency converter of tile

Type: PTI

About products:

In the traditional boiler water level control system, the feed water pump runs constantly continuously, and the control of flow is that regulating valve and reflux access road were realized through regulating in water pipeline. These two kinds of methods both have obvious defects.

The products are detailed:

1,The frequency conversion of the boiler adjusts and supplies water of the control system rapidly
In the traditional boiler water level control system, the feed water pump runs constantly continuously, and the control of flow is that regulating valve and reflux access road were realized through regulating in water pipeline. These two kinds of methods both have obvious defects. Adopt regulating valve regulate, because of decrease of opening of valve, water pump export the intersection of valve and both sides press difference and increase in will rise by pressure, and then the life-span is shortened. While adopting the access road of reflux to adjust, a large amount of water reflux causes the consumption of energy too.
Operation principle of the water pump
Can know flow is proportional to rotational speed N, the lift H is proportional to square of the rotational speed N by the operation principle of the water pump, the axle power P is proportional to rotational speed N three powers, the rotational speed of the electrical machinery is proportional to frequency F of the power, so change the power frequency, it is the rotational speed of the feed water pump to change the motor, thus achieve the purpose to regulate and supply water the flow.
The system makes up and the principle
This system is mainly made up of an one-chip computer and a frequency converter, the steam dome water level here is to accuse of the variable, supply water quantity and evaporation capacity two auxiliary impulse, three variable these to press changer, go on, measure by electronic difference, then control the frequency converter in order to realize the regulation of the feed water pump rotational speed through the electric current signal of calculation output 4-20mA of the one-chip computer.
While designing the system, should confirm the output frequency of the frequency converter at first, because the choice of this parameter concerns that exactly passes the systematic control result, should follow the water pump flow, parameters such as the lift,etc. and maximum water consumption and minimum water consumption are confirmed.
Working state of the frequency converter
The frequency converter is set up through the input output end son linking with external circuit. The working state of manual and automatic two kinds, the designated frequency converter output frequency through regulating the potentiometer of the manual working state, this kind of working state is operated when the unit is inactive because of a certain situation, controlled by the output signal of the one-chip computer at the time of the automatic working state.
In practical application, the intersection of system and traditional the intersection of regulating valve and advantage that control method produce in fact most this economize on electricity in the same term rate up to nearly 20% and can improve automatic level of system better.
2,The frequency conversion of the boiler transfers the drum of the speed ‘ Guide) Wind control system
In addition, the drum of the boiler (guide) Air volume of air blower be changed often too, because vapour quantity change to change often, so air volume needs regulating frequently regulated by the valve, the control room of the boiler is relatively far to the distance of the valve, operation is very inconvenient, can not regulate aptly either, air volume is regulated too big, the air oxygen content exceeds standard, having wasted heat energy, air volume is regulated too small, residual carbon share of cinder exceeds standard, has wasted the coal, so control competence in order to improve, guarantee the air oxygen content and residual carbon one of cinder are up to standard, must carry on the effective regulation to air volume, the way to regulate must be convenient, sensitive, reliable.
In order to improve the control level of the boiler air volume, can reach the energy-conserving result, adopt frequency conversion to adjust speed way to regulate air volume, it is a first-selected scheme. Because it can be according to using the change that the vapour measures, adjust the rotational speed of the drum air-introduced machine to employ frequency conversion to adjust speed technology at any time, have reduced the pollution (electrical machinery is operated of the noise under the specified rotational speed, the noise of the wind is thereupon decline) Play a role in suring in improving the industrial hygiene level, because the drum air-introduced machine is lower than the state of the specified rotational speed to run for a long time the bearings of electrical machinery and air blower are difficult to damage, having lengthened service life, the caloric value of the electrical machinery has been reduced too, the maintaining amount drops. The time of shutting down is reduced, save a large amount of maintenance cost.
In a word:
Adopt, protect PTI series air blowers, energy-efficient frequency converters of water pump, Dr. of tile, in the drum ‘ Guide) Very effective after employing on the air blower, worth popularizing.
Guangzhou protect tile electronic Science Technologies Co., Ltd.
Contact: Li is good (commercial manager)
Tel.: 020-39388408-803; 18925118560
Fax: 020-39388125
Customer service QQ: 125974921 1370187322
Transfer by telegram: [email protected]
Enterprise’s official site: http://www.powertechnic.com
Trade websites: http://www.zgjn888.com http://www.jiedian8.com http://www.bianpin8.com
China advertise for agent sincerely, distributor, the intersection of project and cooperation, intend, please call to consult.

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