Page 89 - 《橡塑技术与装备》2021年17期（8月上半月 橡胶版）

设备管理与维护 宋月涛 等·轮胎厂电制冷和蒸汽制冷经济效益分析对比

节省能耗费用 49.75 万元，取整后约 50 万元。

表 1 蒸汽制冷和电制冷费用对比表
每年费用
每小时耗
设备 耗能介质 消耗量 /h 单价 / 元 能效益对 （每年开
机 30 天计
比 / 元
算）/ 元
蒸汽制冷 蒸汽 4t 300 1 200 864 000
机
电制冷机 电 760 kW 0.67 509 366 480
节约费用 691 497 520
合计

4 结论
图 3 离心式压缩机式制冷机示意图 通过对比，轮胎公司在蒸汽紧张的情况下可对制

这直接导致了蒸汽能耗的增加，经过调查，我们发现 冷机进行升级改造，淘汰溴化锂制冷机，在保障了生
.
相同制冷量的电制冷机耗电才只有 760 kW h，通过对 产工艺要求的前提下，降低了成本，经过核算每年可
比发现，电制冷节能明显。 节约 50 万元，节约了生产成本，提高了公司收益。制
相同制冷量（350 万大卡）制冷机能耗对比 ： 冷设备在轮胎行业至关重要，因橡胶对温度要求较高，
（1）蒸汽制冷机蒸汽耗量为 4 t/h，每吨蒸汽 300 对高温天气产品的质量至关重要，在满足工艺要求情
元。折合 1 200 元 /h。 况下，在气温不高于 30 ℃的天气采用余热蒸汽及热
.
（2）电压缩制冷机耗电量 760 kW h，电费单价 水制冷，充分利用蒸汽余热，节约能耗，在炎热天气，
.
0.67 元 /kW h，折合 509.2 元 /h。 在余热蒸汽不够的情况下加离心式电制冷机结合的方
电制冷机一般作为蒸汽余热制冷的补充机台使 式为轮胎行业提供最优的车间制冷解决方案，轮胎行
用，在炎热的夏季使用，每年按照开机 30 天计算，通 业可以广泛应用。
过对比，如表 1 所示，电制冷机组相比蒸汽制冷机可

Economic benefit analysis and comparison of electric refrigeration and
steam refrigeration in tire factories

Song Yuetao, Sun Jinyin, Yue Yunli, Qin Zenghui, Cheng Jianjian, Li Chaomin
(Wanda Holding Group Co. LTD., Dongying 257500, Shandong, China)

Abstract: Tire companies have very strict requirements on the environment of the workshop. Generally,
it is necessary to turn on the refrigeration unit to control the temperature of the workshop in May. Especially
in the summer, consume cold amounts is very large. Traditional lithium bromide refrigerators use steam as
an energy source, which consumes a lot of energy. With the advancement of science and technology,
electric refrigeration compressor technology, especially centrifugal compressor technology, has made
rapid development in recent years. The energy efficiency ratio is far greater than that of vapor refrigeration.
Therefore, lithium bromide refrigeration has no advantages in front of electric refrigeration. Shandong Wanda
Baotong has realized the purpose of energy saving and consumption reduction by reforming the refrigerator.
By transforming the steam refrigerator into an electric refrigerator, the operating cost is reduced, and energy
costs of about 500,000 yuan are saved every year. This article explains the working principles of steam
refrigeration and electric refrigeration units, and analyzes and compares energy efficiency at the same time,
which can be used as a reference for industry comparison.
Key words: tires; refrigerators; lithium bromide; electric refrigeration; steam
(R-03)

年
2021 第 47 卷 ·33·