Abstract: A modular heat exchanger comprises modules connected in parallel. Each module represents by itself a casing inside of which there is provided a bundle of straight pipes for the first coolant; the open ends of the straight pipes adjoin tube plates. The latter are secured on the casing which has an inlet and outlet for the second coolant coming into contact with the intertube space. The modules are arranged in a shell for a first coolant, to pass therethrough which is fed into the straight pipes and the space between said modules. The shell is provided with an inlet and outlet for the second coolant. Displacers are arranged in the space between the modules, over the entire length of the latter, which displacers ensure equality of the heat-exchange coefficient inside the straight pipes and between the modules.

Abstract: A vertical separator for liquid-gas media comprising a cylindrical housing accommodating a gas discharge pipe coaxial therewith, the pipe and the inner surface of the housing define an annular space divided by a partition wall with openings for gas passage into a liquid-gas space, and a gas space communicating with the internal space of the pipe. The liquid-gas space accommodates blocks for separating the media into liquid and gas, the blocks extending in the radial direction. Each separation block is provided with a gas discharge means accommodated in spaces between adjacent separation blocks and embracing the gas-passage openings in the partition wall.

Abstract: A heat exchanger comprising a number of interchangeable, possibly standardized sections. Each section is made in the form of a bundle of at least partly longitudinally finned tubes, and has strips which serve as spacer elements for fixing the tubes at a certain distance from one another, and bands embracing the tube bundles. The strips have alternating one-sided projections, each projection having the shape of half the perimeter of a rectilineal polygon. Each pair of strips forms cells. The tubes have non-finned portions along the widths of the strips these portions being located at the same level for all the tubes in a section. The cells embrace the non-finned portions of the tubes so that the latter are arranged in parallel rows.