Abstract: A heat exchanger includes a first collecting pipe, a number of heat exchange tubes and a partition plate. The heat exchange tubes are inserted into the first collecting pipe. By means of the partition plate, a first inner cavity of the first collecting pipe is divided into a first sub-cavity and a second sub-cavity. One end of each heat exchange tube is in communication with the first sub-cavity. In the process of a refrigerant entering the first collecting pipe, the refrigerant flows into the second sub-cavity firstly, and forms a severe turbulence effect after interacting with the heat exchange tubes inserted into the second sub-cavity. Then, the refrigerant flows into the first sub-cavity through holes provided in the partition plate, and then flows into the heat exchange tubes. As a result, the uniformity of the two-phase refrigerant distribution can be relatively improved.

Abstract: A flow adjusting mechanism of a die head of a coater and a working method thereof are provided. The flow adjusting mechanism includes a coarse adjustment mechanism, a fine adjustment mechanism, and a flow choking block which are sequentially arranged from top to bottom. The flow choking block is arranged above a coating slit. A central part of a top surface of the flow choking block is vertically provided with an adjustment rod. The fine adjustment mechanism is connected between the coarse adjustment mechanism and the adjustment rod.

Abstract: A heat exchanger includes a first collecting pipe, a number of heat exchange tubes and a partition plate. The heat exchange tubes are inserted into the first collecting pipe. By means of the partition plate, a first inner cavity of the first collecting pipe is divided into a first sub-cavity and a second sub-cavity. One end of each heat exchange tube is in communication with the first sub-cavity. In the process of a refrigerant entering the first collecting pipe, the refrigerant flows into the second sub-cavity firstly, and forms a severe turbulence effect after interacting with the heat exchange tubes inserted into the second sub-cavity. Then, the refrigerant flows into the first sub-cavity through holes provided in the partition plate, and then flows into the heat exchange tubes. As a result, the uniformity of the two-phase refrigerant distribution can be relatively improved.

Abstract: The present invention relates to a protein particle with a poorly water-soluble drug encapsulated therein and a preparation method therefor. The preparation method comprises the following steps: i) dissolving a poorly water-soluble drug and a liquid solubilizer into a good solvent; ii) partially or fully removing said good solvent from the product of step i); iii) mixing the product of step ii) with a protein; and iv) dispersing the product of step iii) in a poor solvent. The preparation method is simple and is suitable for industrial production.

Abstract: The present invention relates to a protein particle with a poorly water-soluble drug encapsulated therein and a preparation method therefor. The preparation method comprises the following steps: i) dissolving a poorly water-soluble drug and a liquid solubilizer into a good solvent; ii) partially or fully removing said good solvent from the product of step i); iii) mixing the product of step ii) with a protein; and iv) dispersing the product of step iii) in a poor solvent. The preparation method is simple and is suitable for industrial production.