Patent ID: 7708952

Claim:
A reaction or separation device, wherein materials circularly flow in a container and a pipe, the device being used in a case of the presence of escaping vapor due to evaporation or reaction comprising a container and an externally circulating pipe, wherein the container is a double-chamber structure; an inner chamber is installed inside the container and the continuous space of the container outside the inner chamber forms the outer chamber; the top of the inner chamber locates in the continuous space of the container from the top downwards; the inner chamber consists of an outer cylinder and an inner cylinder with the latter being jacketed with the former, and there exists a space between the walls of the outer cylinder and the inner cylinder; wherein the lower end of the outer cylinder is open and a connecting passage with a throttling controller is equipped between its upper end and the upper part of the external chamber to regulate the pressure difference between the inner and outer chambers; the outer cylinder is fixed to the wall or bottom of the container and its lower end is higher than the bottom of the container; the upper end of the inner cylinder is open and its lower end connects with the external circular pipe through the feed outlet; the inner cylinder is fixed to the bottom of the container and its upper end is higher than the lower end of the outer cylinder and lower than the top cover of the outer cylinder; a continuous passage is sequentially formed from the spaces between the wall of the outer cylinder and that of the container, between the lower end of the outer cylinder and the bottom of the container, between the wall of the outer cylinder and that of the inner cylinder, and in the inner cylinder; wherein the external circular pipe connects with the bottom of the container and leads to the inner chamber, and connects with the side wall of the lower part of the container and leads to the outer chamber, respectively.