Smart and energy-saving non negative pressure water supply equipment will experience explosive growth
2025/12/10??????view:
With the active promotion of energy conservation and emission reduction, and the gradual implementation of the subsidy policy for high-efficiency and energy-saving motors, the industry of complete sets of energy-saving and non negative pressure water supply equipment will usher in explosive growth. In the next few years, the proportion of complete sets of non negative pressure water supply equipment in China's newly added small and medium-sized water supply equipment will reach over 30%, and the market size will further expand.
At present, there are various types of complete sets of equipment for non negative pressure water supply in China, but their efficiency is not high. The motor system has low efficiency and operates inefficiently for a long time. Some users who produce non negative pressure water supply complete equipment systems lack awareness of the economic benefits brought by non negative pressure complete equipment systems, or have obstacles to the technical issues of energy-saving transformation of non negative pressure complete equipment systems. The complete set of equipment for non negative pressure water supply has been in a lukewarm state. But with the promotion of low-carbon, energy-saving and emission reduction policies in China and even worldwide, there will be substantial progress in the promotion and application of complete sets of equipment for non negative pressure water supply.
The development trend of China's power industry is good, which has led to a stable growth in the demand for electric motors in the market for a considerable period of time. In the context of energy conservation and emission reduction, improving motor efficiency is undoubtedly the primary issue to be addressed in achieving energy conservation and emission reduction goals. The complete set of energy-saving and non negative pressure water supply equipment adopts new design concepts, processes, and materials, and improves output rate by reducing the loss of electromagnetic energy, thermal energy, and mechanical energy. Compared with standard non negative pressure complete sets of equipment, the use of energy-saving non negative pressure water supply complete sets of equipment has a very significant energy-saving effect, usually increasing by about 20%, and the market prospects are promising.
Introduction to the complete set of equipment for non negative pressure water supply
Water is the source of human life, and human survival cannot be without water for a day.
With the continuous improvement of urbanization level in our country, the urban population has increased sharply, and the continuous expansion and renovation of urban residential buildings have led to the continuous increase of residential floors and the expansion of urban areas. The pressure on the original municipal pipeline network is becoming increasingly insufficient, and in most areas, there is a widespread problem of low water supply pressure during peak periods, making it difficult for high-rise users to use water.
So most buildings add secondary pressurization equipment, build reservoirs and high-level water tanks, which can supply water through water pumps for secondary pressurization. However, this traditional secondary pressurization equipment has many disadvantages such as high investment and easy secondary pollution of water sources.
The fully automatic non negative pressure water supply equipment developed and produced by our company can be connected in series to the urban government pipe network for secondary pressurization of users. This water supply equipment does not require the construction of reservoirs or high-level water tanks, and can be directly connected in series to the municipal pipe network. When the equipment operates normally, it will not create negative pressure (suction) on the municipal pipe network, which meets the requirements of China's "Urban Water Supply Regulations". It can fully utilize the existing pressure of the municipal pipe network, and the energy-saving effect is extremely significant by using variable frequency speed regulation water supply method. After being introduced to the market, it has been highly favored by Fangda users.
The control system of the complete set of equipment for non negative pressure water supply automatically adjusts the operation of a single or multiple water pumps according to the amount of water used, achieving maximum rational water use, ensuring constant pressure water supply, and achieving the goal of energy saving
When the control system is working, the water pump controlled by the frequency converter starts at a low frequency and gradually accelerates. The pressure sensing device installed on the outlet pipeline detects the pressure of the pipe network in real time and converts the pressure signal into an electrical signal to output to the controller. After calculation and processing, the controller transmits the command signal to the frequency converter to adjust the output power of the frequency converter, thereby controlling the speed of the water pump motor and changing the flow rate of the water pump to meet the set pressure of the pipe network and maintain it constant. When stopping water use, the water pump motor is in a sleep and pressure maintaining state.
Working principle of complete equipment for non negative pressure water supply
When the equipment is put into normal use, water from the municipal pipeline enters the non negative pressure steady flow tank, and a large amount of air inside the tank is discharged from the exhaust valve. When the air is exhausted, the floating ball inside the valve is lifted by removing water, and the transmission plug is moved to the closed position. Slowly close the exhaust port, stop the exhaust, and prevent water from flowing out. When the water flow in the steady flow tank is normal, if a small amount of air accumulates in the valve to a considerable extent, the water level inside the valve will drop, and the floating ball will follow suit. At this time, the air will be discharged through the exhaust hole.
During the normal operation of the non negative pressure water supply equipment, when the municipal water supply network is insufficient, the water flow in the municipal inlet pipe is empty, or the water pressure in the stabilizing tank is lower than atmospheric pressure, the water level in the stabilizing tank drops, and the floating ball descends accordingly, driving the plug to open and suck in air, so as to maintain atmospheric pressure in the stabilizing tank and prevent negative pressure on the municipal water supply network.
When the pressure in the municipal pipeline network is lower than the set pressure required by the user, the water pump operates with variable frequency speed regulation to ensure that the pressure in the user's pipeline network meets the user's water requirements. The higher the water pressure in the municipal pipeline network. The lower the speed of the water pump, the lower the water pressure in the municipal pipeline network, and the higher the speed of the water pump. When the water supply pressure of the municipal pipeline network reaches the user's requirements, the equipment automatically stops working, and the water in the municipal pipeline network is directly supplied to the user through the bypass pipe.
When the municipal pipeline network stops water supply, the water level in the stabilizing tank gradually decreases. When it drops to a lower water level, the liquid level gauge on the stabilizing tank sends a shutdown signal, and the equipment automatically stops running and displays a water shortage protection signal.
When the power grid is cut off, the equipment shuts down, and the water in the municipal pipeline network is directly supplied to users through the equipment bypass pipe.
Characteristics of complete equipment for non negative pressure water supply
1. No need to set up reservoirs and high-level water tanks
The non negative pressure water supply equipment is directly connected to the municipal pipeline network, without the need to build reservoirs and high-level water tanks, saving engineering investment and reducing the occupation of building area.
When the municipal water supply network has sufficient water supply, the volume of the non negative pressure steady flow tank is small, and the entire equipment occupies a small area. The installation of the equipment only requires connecting the inlet and outlet water pipes, which is very convenient.
2. Secondary pollution without water source
The non negative pressure steady flow tank and the entire equipment pipeline are all sealed, from the municipal pipeline network to the user's faucet, they will not be subject to secondary pollution from debris and dirt in the air. The overflow part of the non negative pressure steady flow source tank is treated with anti-corrosion coating on the inner wall of the food container, and the coating and non negative pressure water supply equipment meet relevant food hygiene standards.
3. Significant energy-saving effect
The traditional secondary pressurized water supply method uses a reservoir and a high-level water tank. When the municipal pipe network water supply pressure is put into the reservoir, the energy loss is exhausted and the energy waste is serious.
After adopting a non negative pressure steady flow tank, the water supply pressure of the municipal pipeline network is directly superimposed on the inlet of the water supply pump, and the pump only needs to supplement the insufficient pressure of the municipal pipeline network, resulting in significant energy-saving effect of the whole machine.
4. No need to set up a stabilizing pump and a large volume pressure tank
Generally, variable frequency water supply equipment is equipped with low flow stabilizing pumps and large volume pressure tanks to ensure that users can avoid frequent start-up of the water supply pump in case of small or zero flow leakage into the pipeline network at night. This not only increases the one-time investment of the water supply equipment, but also increases the operating costs of the equipment (such as the power consumption of the evening stabilizing pump).
During the low peak period of water use in the evening, the water supply pressure and volume of the municipal pipeline network can basically meet the requirements of users. After adopting non negative pressure stable flow water supply equipment, the original pressure of the municipal pipeline network is fully utilized, and the water in the municipal pipeline network is directly supplied to users. The equipment does not require equipment stabilizing pumps and large volume stabilizing pressure tanks, which saves investment and significantly improves the energy-saving effect of equipment operation.
Application scope of complete equipment for non negative pressure water supply
Suitable for water supply in any area with insufficient tap water pressure
Domestic water supply for high and low rise civil and industrial buildings.
Low level tap water pressure cannot meet the requirements for various types of water use.
Transforming the existing pneumatic water supply equipment can fully utilize the existing pneumatic tank.
For those who have already built a water tank, a non negative pressure equipment can be used to share the water supply with the tank, further saving energy.
Intermediate booster pump station for water supply in the water plant.
Production and domestic water use of industrial and mining enterprises.
Various circulating water systems.
Working environment of complete equipment for non negative pressure water supply
1. Power supply voltage fluctuation ≤ ± 10%;
2. Surrounding environmental temperature: -10 ℃ -+40 ℃ (not frozen);
3. Relative humidity of the air: 20% -90% (no condensation);
4. Altitude: ≤ 1000m;
5. Places without conductive dust that can corrode metals and damage insulation gases in Egypt;
6. Places without explosion hazards;
7. Vibration:<5.9m/s2 (0.6G), inclination: ≤ 5 degrees in places;
8. Places with rain and earthquake resistant equipment and no water vapor;
At present, there are various types of complete sets of equipment for non negative pressure water supply in China, but their efficiency is not high. The motor system has low efficiency and operates inefficiently for a long time. Some users who produce non negative pressure water supply complete equipment systems lack awareness of the economic benefits brought by non negative pressure complete equipment systems, or have obstacles to the technical issues of energy-saving transformation of non negative pressure complete equipment systems. The complete set of equipment for non negative pressure water supply has been in a lukewarm state. But with the promotion of low-carbon, energy-saving and emission reduction policies in China and even worldwide, there will be substantial progress in the promotion and application of complete sets of equipment for non negative pressure water supply.
The development trend of China's power industry is good, which has led to a stable growth in the demand for electric motors in the market for a considerable period of time. In the context of energy conservation and emission reduction, improving motor efficiency is undoubtedly the primary issue to be addressed in achieving energy conservation and emission reduction goals. The complete set of energy-saving and non negative pressure water supply equipment adopts new design concepts, processes, and materials, and improves output rate by reducing the loss of electromagnetic energy, thermal energy, and mechanical energy. Compared with standard non negative pressure complete sets of equipment, the use of energy-saving non negative pressure water supply complete sets of equipment has a very significant energy-saving effect, usually increasing by about 20%, and the market prospects are promising.
Introduction to the complete set of equipment for non negative pressure water supply
Water is the source of human life, and human survival cannot be without water for a day.
With the continuous improvement of urbanization level in our country, the urban population has increased sharply, and the continuous expansion and renovation of urban residential buildings have led to the continuous increase of residential floors and the expansion of urban areas. The pressure on the original municipal pipeline network is becoming increasingly insufficient, and in most areas, there is a widespread problem of low water supply pressure during peak periods, making it difficult for high-rise users to use water.
So most buildings add secondary pressurization equipment, build reservoirs and high-level water tanks, which can supply water through water pumps for secondary pressurization. However, this traditional secondary pressurization equipment has many disadvantages such as high investment and easy secondary pollution of water sources.
The fully automatic non negative pressure water supply equipment developed and produced by our company can be connected in series to the urban government pipe network for secondary pressurization of users. This water supply equipment does not require the construction of reservoirs or high-level water tanks, and can be directly connected in series to the municipal pipe network. When the equipment operates normally, it will not create negative pressure (suction) on the municipal pipe network, which meets the requirements of China's "Urban Water Supply Regulations". It can fully utilize the existing pressure of the municipal pipe network, and the energy-saving effect is extremely significant by using variable frequency speed regulation water supply method. After being introduced to the market, it has been highly favored by Fangda users.
The control system of the complete set of equipment for non negative pressure water supply automatically adjusts the operation of a single or multiple water pumps according to the amount of water used, achieving maximum rational water use, ensuring constant pressure water supply, and achieving the goal of energy saving
When the control system is working, the water pump controlled by the frequency converter starts at a low frequency and gradually accelerates. The pressure sensing device installed on the outlet pipeline detects the pressure of the pipe network in real time and converts the pressure signal into an electrical signal to output to the controller. After calculation and processing, the controller transmits the command signal to the frequency converter to adjust the output power of the frequency converter, thereby controlling the speed of the water pump motor and changing the flow rate of the water pump to meet the set pressure of the pipe network and maintain it constant. When stopping water use, the water pump motor is in a sleep and pressure maintaining state.
Working principle of complete equipment for non negative pressure water supply
When the equipment is put into normal use, water from the municipal pipeline enters the non negative pressure steady flow tank, and a large amount of air inside the tank is discharged from the exhaust valve. When the air is exhausted, the floating ball inside the valve is lifted by removing water, and the transmission plug is moved to the closed position. Slowly close the exhaust port, stop the exhaust, and prevent water from flowing out. When the water flow in the steady flow tank is normal, if a small amount of air accumulates in the valve to a considerable extent, the water level inside the valve will drop, and the floating ball will follow suit. At this time, the air will be discharged through the exhaust hole.
During the normal operation of the non negative pressure water supply equipment, when the municipal water supply network is insufficient, the water flow in the municipal inlet pipe is empty, or the water pressure in the stabilizing tank is lower than atmospheric pressure, the water level in the stabilizing tank drops, and the floating ball descends accordingly, driving the plug to open and suck in air, so as to maintain atmospheric pressure in the stabilizing tank and prevent negative pressure on the municipal water supply network.
When the pressure in the municipal pipeline network is lower than the set pressure required by the user, the water pump operates with variable frequency speed regulation to ensure that the pressure in the user's pipeline network meets the user's water requirements. The higher the water pressure in the municipal pipeline network. The lower the speed of the water pump, the lower the water pressure in the municipal pipeline network, and the higher the speed of the water pump. When the water supply pressure of the municipal pipeline network reaches the user's requirements, the equipment automatically stops working, and the water in the municipal pipeline network is directly supplied to the user through the bypass pipe.
When the municipal pipeline network stops water supply, the water level in the stabilizing tank gradually decreases. When it drops to a lower water level, the liquid level gauge on the stabilizing tank sends a shutdown signal, and the equipment automatically stops running and displays a water shortage protection signal.
When the power grid is cut off, the equipment shuts down, and the water in the municipal pipeline network is directly supplied to users through the equipment bypass pipe.
Characteristics of complete equipment for non negative pressure water supply
1. No need to set up reservoirs and high-level water tanks
The non negative pressure water supply equipment is directly connected to the municipal pipeline network, without the need to build reservoirs and high-level water tanks, saving engineering investment and reducing the occupation of building area.
When the municipal water supply network has sufficient water supply, the volume of the non negative pressure steady flow tank is small, and the entire equipment occupies a small area. The installation of the equipment only requires connecting the inlet and outlet water pipes, which is very convenient.
2. Secondary pollution without water source
The non negative pressure steady flow tank and the entire equipment pipeline are all sealed, from the municipal pipeline network to the user's faucet, they will not be subject to secondary pollution from debris and dirt in the air. The overflow part of the non negative pressure steady flow source tank is treated with anti-corrosion coating on the inner wall of the food container, and the coating and non negative pressure water supply equipment meet relevant food hygiene standards.
3. Significant energy-saving effect
The traditional secondary pressurized water supply method uses a reservoir and a high-level water tank. When the municipal pipe network water supply pressure is put into the reservoir, the energy loss is exhausted and the energy waste is serious.
After adopting a non negative pressure steady flow tank, the water supply pressure of the municipal pipeline network is directly superimposed on the inlet of the water supply pump, and the pump only needs to supplement the insufficient pressure of the municipal pipeline network, resulting in significant energy-saving effect of the whole machine.
4. No need to set up a stabilizing pump and a large volume pressure tank
Generally, variable frequency water supply equipment is equipped with low flow stabilizing pumps and large volume pressure tanks to ensure that users can avoid frequent start-up of the water supply pump in case of small or zero flow leakage into the pipeline network at night. This not only increases the one-time investment of the water supply equipment, but also increases the operating costs of the equipment (such as the power consumption of the evening stabilizing pump).
During the low peak period of water use in the evening, the water supply pressure and volume of the municipal pipeline network can basically meet the requirements of users. After adopting non negative pressure stable flow water supply equipment, the original pressure of the municipal pipeline network is fully utilized, and the water in the municipal pipeline network is directly supplied to users. The equipment does not require equipment stabilizing pumps and large volume stabilizing pressure tanks, which saves investment and significantly improves the energy-saving effect of equipment operation.
Application scope of complete equipment for non negative pressure water supply
Suitable for water supply in any area with insufficient tap water pressure
Domestic water supply for high and low rise civil and industrial buildings.
Low level tap water pressure cannot meet the requirements for various types of water use.
Transforming the existing pneumatic water supply equipment can fully utilize the existing pneumatic tank.
For those who have already built a water tank, a non negative pressure equipment can be used to share the water supply with the tank, further saving energy.
Intermediate booster pump station for water supply in the water plant.
Production and domestic water use of industrial and mining enterprises.
Various circulating water systems.
Working environment of complete equipment for non negative pressure water supply
1. Power supply voltage fluctuation ≤ ± 10%;
2. Surrounding environmental temperature: -10 ℃ -+40 ℃ (not frozen);
3. Relative humidity of the air: 20% -90% (no condensation);
4. Altitude: ≤ 1000m;
5. Places without conductive dust that can corrode metals and damage insulation gases in Egypt;
6. Places without explosion hazards;
7. Vibration:<5.9m/s2 (0.6G), inclination: ≤ 5 degrees in places;
8. Places with rain and earthquake resistant equipment and no water vapor;
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