Dyeing machine, overflow sub-bleach main pump role is to produce a certain pressure and flow of water and through the nozzle to promote the cloth cycle. Different weights of cloth need to be different pressure and flow of liquid flow to promote this adjustment is now by adjusting the pump outlet valve to achieve, we are now the weight of the cloth at the end, so the valve opening is only 30% About 80% of the energy is wasted at the valve according to the fluid mechanics and pump characteristics. (MK8C-1LT high-temperature dyeing machine, for example) The main pump current operating current is 24A, then the operating costs for one year: 12KW × 20h × 340 days × 0.7 yuan /KWh × 0.85 = 48,552 yuan After the transformation of VLT frequency conversion The annual running cost is: 12KW × 50% × 50% × 50% (the flow is 50% of the original design flow; the relation between the flow and power is the third power) × 20h × 340 days × 0.7 Yuan / Kwh = 7140 Yuan. You can save money a year: = 41412 yuan The initial investment of this project is 22000 yuan, the benefit is very significant. According to the above principle, in 2002.6 ~ 2003.9 a total of five dyeing machines, an overflow sub-drift machine was transformed to transform the total power transformation 112 KW. Conservative calculation can save 270,000 yuan. (Initial investment of 135,000 yuan).
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