Here is the introduction of their company:
One, Chengdu Shoutong towerless water supply equipment, the latest product introduction:
Traditional towerless water supply equipment adopts pneumatic water supply, the use of sealed tanks, so that the local pressurization to achieve the purpose of the water supply, the process is the pump starts, the water through the check valve injected into the tank, so that the tank pressure increases, when the pressure reaches the set pressure When the pressure reaches the set pressure limit, the pressure automatic controller automatically shut down the pump, so that the pump stops running. As the pressure in the water supply tank is higher than the pressure of the water supply network, so it can automatically reduce the pressure of the water supply, when the pressure decreases to the lower limit of the set pressure, the automatic control of the pump to start automatically injecting water into the water supply tank, and so on and so forth, the first towerless water supply system in the original pneumatic water supply system on the basis of bold innovations, integration of the world's advanced frequency conversion technology, PID regulation technology, change the traditional pneumatic water supply for frequency conversion and constant pressure water supply. Replace the original must have air pressure tank. And the pump adopts frequency conversion speed control, according to the change of water consumption to adjust the speed of the pump, not only can save a lot of energy, but also reduce the pump running noise, long life of the pump.
The main principle of Chengdu Shoutong towerless water supply equipment
Towerless water supply equipment by detecting the analog signal of the pressure sensor on the pipeline, the signal P is transmitted to the microcomputer controller and compared with the set value of P0, and the result of the comparison of P as a regulating parameter to change the output frequency of the frequency converter f. Because the pump's rotational speed n and the outlet pressure P is proportional to the frequency of f. So, when P < P0, the pump speed is adjusted according to the change of the water consumption to adjust the speed of the water pump. Therefore, when P＜P0, frequency f rises, the pump speed up, P rise; when P＞P0, frequency f falls, the pump speed n slows down, P fall, so that the system pressure P always close to the set pressure P0.
Three, Chengdu Shoutong towerless water supply equipment product advantages
Solve the problem of low water pressure
Using Chengdu Shoutong towerless water supply equipment Make the whole water supply to maintain a constant pressure.
Avoiding water pollution caused by the use of pneumatic tanks
Replacing the traditional pneumatic tank water supply method necessary for pneumatic pressure type, eliminating the source of water pollution.
Save electricity, reduce the footprint
Save electricity more than 30% than the pneumatic water supply, the equipment covers a small area, simple installation, shorten the construction period.
Four, Chengdu Shoutong towerless water supply equipment and air pressure water supply equipment comparison
Operation mode comparison:
Chengdu Shoutong towerless water supply equipment frequency control is to change the speed of the pump to maintain the stability of the water supply pressure, while the pressure control is controlled by the pressure tank and the pressure switch to control the pressure.
Features: Frequency control: 1, higher than the general cost of the equipment. 2, stable water supply pressure. 3, power saving, low operating costs. 4, long life of pumps and motors. 5, no water hammer phenomenon, stable operation
Pressure control: 1, lower price. 2, water supply pressure deviation is large. 3, the control mode is simple, easy to maintain. 4, the life of pumps and motors.
Make the equipment non-stop water supply, fully automatic operation. The biggest advantage of this towerless water supply system is that it can still supply water for a short period of time under the state of power failure.
Fifth, Chengdu Shoutong towerless water supply equipment and pneumatic water supply system comparison
Variable frequency control
Adjust the speed of the pump to maintain constant pressure in the pipe network, in the system outlet water pipeline detected pressure is less than the value of the pump's start-up pressure, it can automatically regulate the speed of the pump to make the export pressure constant. Pumps reach the frequency speed operation but the pressure does not reach the set pressure, the system in order to start and stop P2, P3 pumps; with the reduction of water consumption, the export pressure rises, the pump speed is gradually reduced. If the pump speed drops to the lowest speed set by the system, the system stops the pump operation according to P3, P2, P1.
When the pipe network pressure is greater than the starting pressure setting value, the water supply from the pressure tank connected to the outlet pipe, if the pipe network pressure is equal to the starting pressure setting value to start the pump, the pump runs in the pipe network pressure reaches the stopping pressure when the pump stops running, after the pump is started, the pipe network pressure is more than the starting pressure, but does not reach the stopping pressure when the pump continues to run; the pump is running at full speed after the pipe pressure is still not reach the starting pressure, the system adds other pumps. Starting pressure when the system additional other pumps to start.
Sixth, Chengdu Shoutong towerless water supply equipment classification
Life pool self-flooding water supply
This water supply pool water surface is higher than the impeller of the pump, so that the impeller of the pump is in a fully submerged state, the pump suction is reliable. According to the actual need, 2-4 pumps can be set up in parallel constant pressure water supply, all pumps cycle soft start, according to the size of the water consumption control automatically replenish the pumps and reduce the pumps, several pumps automatically exchange the operation of the timing, according to the use of different places to realize the variable constant pressure, variable variable pressure water supply to further improve the energy-saving effect.
This type of water supply pool water surface is lower than the pump inlet, known as self-priming, pump suction is unreliable, prone to drop the phenomenon of water diversion, the solution is to set up a diversion tank, as shown in the figure, before the pump to add a diversion tank.
Well frequency conversion water supply mode.
The equipment adopts submersible pump frequency control, can be a pump, can also control multiple pumps, each pump is automatically put into operation according to changes in water consumption.
Drilling wells to repair the pool
This way is currently the most widely used way of factory community, deep wells pumped up water generally with a certain amount of sediment, the pool can play a role in sedimentation and purification, the ground 2 times the installation of water supply equipment is simple, easy to maintain the later, and has been praised by the user.
Seven, the first towerless water supply equipment technical parameters
■ Flow range 0-300 m3/h
■ Pressure range 0-7.5KG/mm2
■ Control pump single motor power ≤ 75KW
■ Pressure adjustment accuracy ≤ 0.01MP
■ Pressure adjustment accuracy ≤ 0.01MP
■ Pressure adjustment accuracy ≤ 0.01MP
■ Pressure adjustment accuracy 0.01MP
■Ambient temperature 0 ~ +40 ℃
■Relative humidity 90% or less (electric control part)
■Power supply 380V × (1 + 10%) 50Hz + 2Hz
Eight, the first through the application of towerless water supply equipment
(1) the scope of application of the region: applicable to the urban pipe network pressure of the region of adequate Pressurized water supply;
(2) Applicable project types: industrial and mining enterprises, production, domestic water, large water supply intermediate pressurization pumping station of the waterworks;
(3) Applicable project parts: water supply secondary pressurization system;
(4) Other scope of application: the new construction, alteration, expansion of residential buildings, office buildings, hotels, restaurants, and other public **** building domestic water;
(5) Type of user: design units, construction units, construction sites, etc..
We serve in Sichuan in the regional scope of:
Chengdu City Jinjiang Qingyang Jinniu Wuhou Chenghua Longquanyi Qingbaijiang Xindu Wenjiang District Dujiangyan Pengzhou Qionglai Chongzhou City Jintang Shuangliu Pixian County Dayi Pujiang Xinjin County
Zigong City Ziluijing Rong County Fushun County
Panzhihua City Xichang City Yanshibian County
Luzhou City Xuyong County Gulin County
Deyang City Guanghan City Shifang City Mianzhu
Mianyang City Jiangyou City Santai County
Guangyuan City Qingchuan County Jiange County
Suining City Shehong County Daying County
Neijiang City Weiyuan County Zizhong County Longchang County
Leshan City Shawan District Emeishan Clipper County
Nanchong City Nanchong City Nanzhong City Nanxian County Yilong County
Yibin City Yibin County Nanxi County Pingshan County
Guangan City Huayng City Yuechi County Neishui County
Dazhou City Wanyuan City Daxian County
Meishan City Renshou County Hongya County Dangleng County
Ya'an City Meishan County Hanyuan County Shimian County
Bazhong City Tongjiang County Nanyang County Pingchang County
Ziyang City Ziyang City Anyue County Lizhi County
Ababa State Malcolm Wenchuan County Li County
Ganzigang Kangding County Luding County Danba
Liangshan Prefecture Xichang City Yanyuan County Dechang County