summary
GBP series frequency control constant pressure water supply equipment is an automatic water supply system developed by our company. The product is advanced in technology, reasonable in design, complete in function, and fully automatic in operation. It can replace the traditional high water tower roof water tank for water supply, and avoid the possibility of secondary pollution of water quality. At the same time, it can greatly save energy consumption, and is safe and reliable. It is an ideal modern water supply equipment.
Scope of application
1. It is used for municipal construction, residential areas, high-rise buildings and other civil buildings for living and fire water supply.
2. It is used for production water of various industries and production and domestic water of airports, stations and docks.
3. It is used for the water supply of small and medium-sized water plants and rural water plants.
4. It is used for water supply of landscape architecture, tourist places, fountains and so on.
5. Other places where water supply needs to be improved.
Model description
Energy saving principle
The water pump of the water supply system always maintains the set pressure value in the process of water supply, automatically adjusts the running speed of the motor and increases or decreases the running quantity of the water pump with the change of the water consumption of the user, so as to achieve the purpose of energy saving. As the shaft power of water pump is proportional to the third power of rotation speed, the relationship is as follows:
N1=N（n1/n）3
N - rated power n - rated speed
N1 - operating shaft power N1 - operating speed
It can be seen from the above formula that when the pump speed is reduced by 20%, the shaft power is reduced by 48.8%
It can be seen from the above analysis that when the average flow of the pump is 80% of the rated flow, the frequency conversion pump can save nearly 50% of the energy, so as to achieve the purpose of high efficiency and energy saving.
working principle
The system consists of PLC controller, pressure sensor, frequency converter, water pump, etc. PLC controller samples the pipeline pressure in real time, compares it with the pressure setting value, and automatically adjusts the output frequency according to the pressure deviation, so as to control the motor speed to realize variable constant pressure water supply and meet the needs of life and fire water supply.
1. GbpA and GbpB frequency conversion and constant voltage equipment
The system is composed of several pumps, which are compared with the set pressure according to the pressure detected by the pressure sensor. Then, the PLC can automatically control the pumps to put into operation in order to ensure the constant water pressure. GbpA type is equipped with pressure stabilizing pump and air pressure tank, so as to solve the problem of small water consumption and large power consumption of large pump rotation. When the water consumption at night is less, the large pump stops running, and the pressure stabilizing pump and the air pressure tank automatically switch to run.
GbpA variable frequency constant pressure water supply equipment
| GbpB type variable frequency constant pressure water supply equipment
|
2. Gbpc type dual purpose frequency water supply equipment for living and fire fighting The system sets a variety of feed water pressure, one of which is constant domestic feed water pressure. When the equipment is supplying water in normal life, each water pump automatically sets the start and stop of the pump according to the water supply pressure. In case of fire, turn on the fire hydrant or spray system, the flow indicator will send fire signal to the controller, and raise the pressure to the pressure of fire water supply through the controller, and cut off the domestic water supply to meet the fire water consumption.
| Gbpc type dual purpose frequency water supply equipment for living and fire fighting
|
| Specification and model | Flow m3 / h | Head M | Main pump unit (high speed motor kw) | Auxiliary pump unit (kw） | Air pressure tank Φ × H (mm) | Reference volume of water storage tank M3 | ||||
| model | Power / set | Number of sets | model | Power / set | Number of sets | |||||
| GBP-6-60 | 6 | 60 | 40GDL6-12×5 | 2.2 | 1 | 1.5 | 1 | 0.4×1.2 | 5 | |
| GBP-12-60 | 12 | 50GDL12-15×4 | 4 | 8 | ||||||
| GBP-18-60 | 18 | 50GDL18-15×4 | 5.5 | 25GDL2-12×5 | 0.5×1.4 | 15 | ||||
| GBP-30-60 | 30 | 50GDL12-15×4 | 2.5 | 20 | ||||||
| 50GDL18-15×4 | 5.5 | |||||||||
| GBP-36-60 | 36 | 80GDL36-12×5 | 11 | 25 | ||||||
| GBP-48-60 | 48 | 65GDL24-12×5 | 7.5 | 2 | 30 | |||||
| GBP-60-60 | 30 | 65GDL24-12×4 | 7.5 | 1 | 35 | |||||
| 80GDL36-12×5 | 11 | |||||||||
| GBP-80-60 | 80 | 80GDL36-12×5 | 11 | 0.6×1.5 | 40 | |||||
| 80GDL54-14×4 | 15 | |||||||||
| GBP-100-50 | 100 | 50 | 80GDL54-14×4 | 15 | 2 | 25GDL4-12×5 | 50 | |||
| GBP-120-50 | 120 | 50GDL12-15×4 | 2.2 | 1 | 60 | |||||
| 80GDL54-14×4 | 15 | 2 | ||||||||
| GBP-140-50 | 140 | 80GDL36-12×5 | 11 | 1 | 70 | |||||
| 80GDL54-14×4 | 15 | 2 | ||||||||
| GBP-200-50 | 200 | 80GDL54-14×4 | 15 | 4 | 80 | |||||
| GBP-300-50 | 300 | 80GDL54-14×4 | 15 | 2 | 110 | |||||
| 100GDL72-16×4 | 18.5 | 4 | ||||||||
| GBP-400-50 | 400 | 100GDL72-16×4 | 18.5 | 6 | 150 | |||||
| GBP-500-50 | 500 | 100GDL×3 | 30 | 1 | 200 | |||||
| IS125-100-200 | 45 | 2 | ||||||||
| GBP-600-50 | 600 | IS125-100-200 | 45 | 3 | 300 | |||||
| GBP-700-50 | 700 | 100GDL×3 | 30 | 1 | 350 | |||||
| IS125-100-200 | 45 | 3 | ||||||||
| GBP-800-50 | 800 | IS125-100-200 | 45 | 4 | 400 | |||||
explain:
1. The above specifications and models are common specifications. Users can choose different pressure and flow according to the actual situation. Our company can provide users with the most appropriate equipment configuration.
2. The working pump in the table does not include standby pump. Only one working pump shall be equipped with two or more working pumps. Whether the standby pump is needed or not shall be determined by the user according to the actual situation.
3. In the model of this product, gbpA or GbpB can be used as the domestic water supply equipment and choose whether to use the pressure stabilizing pump pressure tank according to the needs. In general, when the actual water consumption varies greatly and the water consumption is lower than the lower limit flow of a working pump, it is more appropriate to use a stabilized pressure pump and a pressure tank, that is to say, gbpA type is more reasonable.
Table of selected parameters
| 2.2 | 3.7 | 7.5 | 15 | 22 | 30 | 37 | 45 | 75 | 110 | 132 | ||
| Parameters of matching transformer | Rated capacity (kVA) | 3.9 | 5.5 | 11.2 | 22 | 30 | 41 | 50 | 61 | 100 | 150 | 171 |
| Rated output power (kw) | 2.2 | 3.7 | 7.5 | 15 | 22 | 30 | 37 | 45 | 75 | 110 | 132 | |
| Rated output power (a) | 6 | 8 | 17 | 33 | 45 | 62 | 77 | 95 | 150 | 225 | 260 | |
| Rated output voltage (V) | 308v three-phase alternating current | |||||||||||
| Cooling mode | Natural cooling | Forced cooling | ||||||||||
| Electric control cabinet | Operation mode | When the pressure does not reach the set pressure, it is controlled by the controller to soft start each pump and adjust the output frequency to get the set pressure. | ||||||||||
| Protection function | Short circuit protection; overload protection; over-current protection; water shortage protection; low voltage and over-voltage protection | |||||||||||
| display | Frequency display; power supply display; inverter abnormal display; motor fault display | |||||||||||
Installation and commissioning
1. The equipment shall be placed in a ventilated and dry room without corrosive gas and excessive dust; the working environment shall be between 5 ℃ and 45 ℃, and the indoor relative humidity shall be below 90%.
2. The equipment control part shall be commissioned on site by our company, and the user shall not dismantle or commission without permission.
3. The company is responsible for training user operators.
4. The equipment must be maintained and overhauled regularly, and the faults shall be eliminated in time.
Service Information
When ordering, please provide accurate data according to the actual water supply quantity and lift or provide the maximum water consumption and maximum water supply height per hour, and our company will assist in selection.
The equipment can be supplied in sets or parts.
Our company can design and manufacture according to the requirements of users.
The company follows the principle of continuous innovation. The technical parameters and design dimensions provided in this manual are improved due to the continuous updating of technology. Please keep in touch with the company.
The company is a professional manufacturer of water treatment, environmental protection products and chemical machinery. In addition to the equipment, we also provide you with water purification equipment, ion exchange softening and desalination equipment, sewage treatment equipment, cooling tower, boiler auxiliary equipment, non-standard equipment processing, water supply and drainage engineering, environmental protection engineering design and construction. Welcome to inquire and patronize.