269results about How to "No stress" patented technology

The invention relates to a round header shell-and-tube water storage central heating multi-pipe heat-conducting heat exchanger and a production technique thereof. Each header body comprises a header outer side arc plate, a header inner side arc orifice plate, and an end cover plate; a plurality of circular cold water pipes are connected between header bodies, at least one circular central heating pipe is arranged in the cavity of each circular cold water pipe, and the pipe orifices of the circular cold water pipes are connected with circular central heating pipe connecting plugging plates; hot fluid in the circular central heating pipe and a header inner cavity form a circulating heat transfer fluid channel; the pipe orifices of the circular cold water pipes insert the header inner side arc orifice plate, and the circular cold water pipes are welded and communicated with circular cold water communicating pipes; a cold water inlet pipe joint and a cold water heat exchange outlet pipe joint are communicated with the circular central heating pipe connecting plugging plate and then are welded and fixedly connected with header outer side arc plate, and form a heat transfer fluid channel together with the cavities of the circular cold water pipes. The round header shell-and-tube water storage central heating multi-pipe heat-conducting heat exchanger is large in heat exchange area increased by 45%-100%, shells and tubes are used for storing water, the multi-pipe heat conducting effect of the central heating pipes is good, no stress generates, and no water leakage exists in the cracked welding position. When people have a shower, continuous flowing hot water which is close to the temperature of a heat source can be supplied.