許多深（shēn）井泵、深（shēn）井潛水泵沒有選用恒壓控製，而是水泵直接供水，當用（yòng）水負荷減少時(用戶用水少（shǎo）)，管網壓力（lì）會（huì）升（shēng）高（gāo），常常引起閥門和接頭等處爆裂，讓費大量的水，也增（zēng）加了（le）維修成本，特別是很多（duō）農村采（cǎi）用的（de）是增強塑（sù）料管，更加容易造成爆管的可能（néng）。

Many deep-well pumps and deep-well submersible pumps do not use constant pressure control, but direct water supply by pumps. When the water load is reduced (users use less water), the pressure of the pipeline network will rise, which often causes bursts at valves and joints, which will cost a lot of water and increase maintenance costs. Especially in many rural areas, reinforced plastic pipes are used. Increased risk of tube explosion.

恒壓供水的方式有水塔供水和氣壓供水及變（biàn）頻恒壓供水三種方式，變頻恒壓供水（shuǐ）控製方式（shì）是投資比較少，也是省電的控製（zhì）方式（shì），沒有水塔供水的占地問題和氣壓供水水泵頻繁啟停問題，實踐檢驗，變頻恒壓供水控製（zhì）方式是好的恒壓控製方式。能夠（gòu）節省電（diàn）能，降低供水成本。

There are three ways of constant pressure water supply: water tower water supply, air pressure water supply and variable frequency constant pressure water supply. Frequency conversion constant pressure water supply control mode is the least investment and the most energy-saving control mode. There are no problems of water tower water supply area and frequent start-up and shutdown of air pressure water supply pump. Practice proves that variable frequency constant pressure water supply control mode is the best one. Constant voltage control mode. It can save electricity and reduce the cost of water supply.

一、變頻（pín）控製可以讓深井泵在用水量小的時候，降低水泵的（de）轉速，從而（ér）消耗的電能也隨之降低，深井（jǐng）泵是平方轉矩負載，其功率和轉速的三次方成正（zhèng）比，當（dāng）轉速降為額定轉速的（de）60%時，其功率是額定的21.6%，可節省78%的電能，此外，采用變頻調速，可以提高功率因數，把無功的電能（néng）轉化為有功的電能，實踐證明，采用變頻控製節電率至少在（zài）30%提高（gāo）水泵的使用壽命。

1. Frequency conversion control can reduce the speed of deep well pump when the water consumption is small, and consequently reduce the energy consumption. The deep well pump is a square torque load. Its power is proportional to the cubic power of the speed. When the speed is reduced to 60% of the rated speed, its power is 21.6% of the rated speed, which can save 78% of the power. In addition, when the speed is reduced to 60% of the rated speed, it can save 78% of the power. The application of frequency conversion speed regulation can improve the power factor and convert reactive power into active power. Practice has proved that the use of frequency conversion control power saving rate is at least 30% to improve the service life of the pump.

二、變頻器具有很強的保護功（gōng）能，水泵過載、過流、失（shī）速、欠電壓、過電壓等引起水泵損壞的（de）因素（sù）及時保護，不引起水泵燒壞。

2. Frequency converter has strong protection function. The factors causing pump damage, such as pump overload, over-current, stall, under-voltage and over-voltage, are protected in time so as not to cause pump burnout.

變頻器（qì）使水泵啟動時軟啟動，即水泵由（yóu）0轉（zhuǎn）速按照加速時間，緩慢地增加（jiā）轉速，這樣，減少了水泵啟動時大電流的衝（chōng）擊，也（yě）減（jiǎn）少了啟動時水泵極聯間迅速啟動時的磨損。

Frequency converter makes the pump start soft, that is, the speed of the pump increases slowly according to the acceleration time from zero speed. This reduces the impact of large current when the pump starts, and also reduces the wear and tear when the pump poles start rapidly.

水泵停機時變頻器讓水泵按照（zhào）減（jiǎn）速（sù）時間，逐步停機，這樣，減少了因為突然停機，滯留在管（guǎn）網的水形成水錘，對（duì）水泵造成很大的損傷。

When the pump stops, the frequency converter lets the pump stop gradually according to the deceleration time, thus reducing the water hammer caused by the sudden shutdown and the water staying in the pipeline network, which causes great damage to the pump.

實踐證（zhèng）明，采用變頻恒壓控製能（néng）使水泵的使用（yòng）壽命提高一倍以上，也能有效地（dì）減少水泵的維護次數。

Practice has proved that frequency conversion constant pressure control can improve the service life of the pump more than double, and can effectively reduce the number of pump maintenance.

三、智能化控製（zhì）全（quán）自動運（yùn）行：

3. Intelligent control and full automatic operation:

供水設備采用（yòng）PID閉環調節，恒壓（yā）精度高，水壓波動小。具有過載、短路、過流等（děng）各種自動（dòng）保護功能（néng），設備運行穩定、可靠，方（fāng）便使（shǐ）用和維護。具（jù）有缺水停（tíng）泵、定時（shí）自動切換水（shuǐ）泵運轉等功能，可以實現無人職守。可建（jiàn）立（lì）遠程監（jiān）控係統，實時（shí）監控設備的運行情況。

The water supply equipment adopts PID closed-loop regulation, which has high constant pressure precision and small fluctuation of water pressure. It has various automatic protection functions such as overload, short circuit, over current, etc. The equipment runs stably and reliably, and is convenient to use and maintain. The utility model has the functions of water shortage, water shutdown, timing automatic switching of water pump operation, etc., and can realize no duty. The remote monitoring system can be established to monitor the operation of the equipment in real time.