aab negative pressure water equipment in the construction of water supply _ _ Miluo negative pressure water equipment

 Frequency inverter for pump control principle | frequency without negative pressure pump with inverter control method introduced to achieve constant negative pressure water supply equipment, accessories, and with a regulating valve to achieve constant pressure water supply compared to energy-saving effect is very significant (according to calculated specific circumstances). Its advantages are: a, starting balance, starting current limit within the rated current, thus avoiding the impact on the grid at the start; b, because the average pump speed is reduced, and thus extend the life of pumps and valves; c can eliminate water hammer effect starting and stopping; Generally speaking, when by a frequency control a motor, just so that you can match with the drive motor capacity and the actual motor capacity. When an inverter simultaneously control two motors, in principle, with the drive motor capacity should be equal to the sum of the two motor capacity. However, if at the time of peak load water supply quantity than two pumps at full speed a lot of difference, may consider appropriate to reduce the capacity of the inverter, it should be noted that there is sufficient capacity. While the pump is running at low speed, the motor current is small. But no negative pressure water equipment, water changes when the user frequently, the motor will be in frequent acceleration and deceleration state, acceleration and deceleration of the current can be slightly more than the rated current of the motor, causing the motor to overheat. Therefore, the motor thermal protection is required. This temperature rise due to frequent acceleration and deceleration and accumulated negative pressure water equipment procurement, electronic thermal protection function within the inverter is difficult to play a protective role, it should be used for the motor thermal relay thermal protection . In the main function of the preset, the highest frequency should be rated for a maximum operating frequency of the motor frequency inverter. L, deceleration time in the case of the PID regulator, the acceleration and deceleration time should be set shorter, so as not to affect the dynamic response of the decision by the PID regulator. Such as the drive itself has PID adjustment function, simply set the preset PID function is active, the set-up and spin-down time will automatically lapse. In the construction of water supply equipment company service: 1, built in water supply equipment company for all products with a service obligation. 2, each project I will appoint a person responsible for production companies, responsible for guiding equipment installation and commissioning, on-site training. 3. The customer must entrust our commitment to equipment installation, our company will send technicians responsible for equipment installation (the demand side to cooperate). 4, after the equipment installation and operating conditions for each test data record, bound collection preservation. 5, the product quality warranty period, the manufacturer is responsible for providing free services. 6, the production company for each user to provide lifelong tracking intelligence without negative pressure water equipment, maintenance services, the use of the product for regular on-site or telephone interviews, to detect and deal with problem solving. 7, the customer calls Insider. For service, will be the first time to the site, the user will not delay the normal supply. 8, the person responsible for the establishment of customer service system, users need to fill in each service is completed by the customer service single signature recognition. 9, the service must treat the user affable attitude, service must be standardized. Users must patiently answered questions explanation will not tolerate a dispute with the user occurs. aab negative pressure water equipment in the construction of water supply _ _ Miluo negative pressure water equipment built by Hunan Water Supply Equipment Co., Ltd. Built in Hunan Water Supply Equipment Co., Ltd. (www.zjgsgs.com) (www.zjgongshui.com) is a leader in Changsha, Hunan, drinking water treatment equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , and satisfy customer needs. In the construction of the water supply led the staff warmly welcome all inquiries negotiations to create the water built a better future.