◎水面shuǐlián
[nappe] The water that hangs down like a curtain refers to waterfalls, dense eaves flowing water, etc. (1). It refers to the water that flows down like a curtain from a high place. Many refers to waterfalls. Song Ouyang Xiu's poem "Recalling the Mountain to Reveal Saint Yu": "The shrimps spray the water curtain, and the sweet liquid is better than drinking it." Jin Yuanhaowen's poem "Visiting the Huanghua Mountain": "The Huanghua Water Curtain is unique in the world, and I first heard of the Snow Creek Weng. "Shi Wulian's "Endless Spring": "I overlook the water curtain of the spillway empty of snow waves."
(2). The sign of the old teahouse. Decorate the head of the pole with cloth and hang it on the door of the shop to attract tea customers. Also called Wangzi. "Water Margin" Chapter 24: "Wang Pozi saw it under the water curtain in the teahouse."
1. Characteristics of the water curtain:
1. The thickness of the cooling water curtain is important There are three types: 10 cm, 15 cm and 20 cm. We use 150mm odorless cooling material.
2. We use 150mm thick evaporative cooling medium CELdek (honeycomb filter layer of special material, Swedish high-tech patented product), which can fully exchange heat with water, so the cooling effect can reach the optimal level. .
3. The material imported from Sweden actually has a better cooling effect than the domestic one, and the price is relatively higher;
4. The outer frame material of the cooling water curtain should be determined. There are mainly aluminum alloys, stainless steel, and aluminum alloy materials. There are two types of special profiles and aluminum plate processing. The quality of special profiles is better than that of aluminum plate processing. Stainless steel is made of plate processing, and the stainless steel frame needs to be identified to identify the authenticity of the stainless steel.
5. Determine the quality of the water curtain paper. Place your hand flat on the water curtain sheet and touch it back and forth. The quality of high hardness is better than the quality of low hardness. Distinguish dark materials better than light materials based on color.
6. In order to deceive customers, some manufacturers use domestic water curtains as imported materials for sale, which shortens the service life of the water curtains (the service life of regular water curtains is 5-10 years).