Zhejiang Dunan Artificial Environment Co., Ltd.

Jinhua Lanhai Photoelectricity Technology Co., Ltd

Zhejiang Charioteer Pharmaceutical Co., Ltd.

Yi Fan

Wenjian Wei

Wenyong Ma

Guanjun Wang

Qing Xiao

Ming Lei

Tian Jin

Guojun Zheng

Tong Pu

Naixing Wang

Chongqiu Liu

Zhen Yang

Xinyu Liang

Tian Chen

Jianming Yang

A heat exchanger, including: a plurality of flat pipes, wherein, the plurality of flat pipes are arranged at intervals; first sealing cushion blocks, arranged between two adjacent flat pipes, wherein the first sealing cushion blocks are located on end portions of the flat pipes, so as to seal gaps between two adjacent flat pipes by means of the first sealing cushion blocks; and a flow collecting shell, provided with a first opening portion, wherein at least part of the first sealing cushion blocks and the end portions of the flat pipes are all plugged into the first opening portion, so that the flow collecting shell, the flat pipes and the first sealing cushion blocks form a flow collecting channel in an encircling manner.

Heat exchanger

Some embodiments of the present disclosure provides a heat exchanger, including: a plurality of flat pipes disposed at intervals, wherein the flat pipe is provided with an inlet portion and an outlet portion, and both the inlet portion and the outlet portion are located on a first end of the flat pipe; a first sealing cushion block, disposed between two adjacent flat pipes; and a flow collecting portion, provided with a first opening portion and a second opening portion, wherein the first opening portion is disposed opposite to the inlet portion, and the second opening portion is disposed opposite to the outlet portion. The first sealing cushion block includes a first sealing portion and a second sealing portion.

Preparation of acyclovir 2/3 hydrate comprises mixing acyclovir with water at weight ratio of 1:5&#x2dc;50, dissolving at 50&#x2dc;100&#xb0; C., filtering, cooling filtrate at 0&#x2dc;30&#xb0; C. to precipitate crystal, collecting the crystal by filtration, and drying the crystal at 0&#x2dc;150&#xb0; C. for 0.5&#x2dc;24 hours to obtain acyclovir 2/3 hydrate. The preparation process is simple and suitable for industrial production. The prepared product has good and stable crystal form.

Method for preparing acyclovir 2/3 hydrate

The present invention relates to a method for laser ranging with high precision and high efficient, a method for identifying distance mode automatically during laser ranging process, and a laser ranger with high precision, high efficient and low power waste. The accuracy of ranging is increased through multi classes of receiving process; the accuracy of ranging is further increased through the selection of distance mode and the adjustment of receiving sensitivity before the measuring steps are executed; the accuracy of ranging is further increased through executing jitter judgment on obtained distance measured values to discard the distance measured values that do not satisfy the setting conditions and judge whether the number of remaining distance measured values satisfies the setting quantity requirement; and the present invention is also of simple structure, high measurement efficiency, and low power waste.

Apparatus and method for laser ranging

Growing community of inventors

Zhejiang, China

Yi Fan