METHOD AND DEVICE FOR PREVENTING FORMATION OF HYDRATE IN NATURAL GAS Russian patent published in 2005 - IPC

FIELD: power engineering.

SUBSTANCE: method comprises heating gas, e.g., inside a case-shaped heat exchanger with the direct fire heating and decreasing heat required for heating due to reducing pressure drop at the pressure regulator mounted at the outlet of the heat exchanger by increasing gas pressure potential energy required for its flowing in the heated passages of the heat exchanger owing to the redistributing the flow rate of gas to be heated over individual heat exchanging pipes proportional to the heat-release rate of the walls with regard for the value of gas pressure available at the heat-exchanger inlet. The device has pipes of inner belt whose working spaces are connected through two branch pipes with the inlet and outlet manifolds of gas to be heated upstream of its reducing. The working spaces of the pipes of the outer belt are in communication with the manifolds, at least through one pipe, and are interconnected through one detachable branch pipe for flowing air heated in the pipe connected with the inlet manifold. The number of pipes in each belt should be multiple to two. The ring baffle which supports pipes are uniformly perforated in its bottom part between the inner wall of the casing and the openings in the outer pipe belt. The total area of the perforation should be at least no less than 50% of the cross-section area of the chimney.

EFFECT: reduced power consumptions and improved ecology.

2 cl, 1 dwg