Heating multi-pipe heat-conducting shell-tube-type water storage heat exchanger and manufacturing process thereof

Abstract

The invention provides a heating multi-pipe heat-conducting shell-tube-type water storage heat exchanger and a manufacturing process thereof. The heating multi-pipe heat-conducting shell-tube-type water storage comprises a plurality of cold water circular tubes which are sequentially communicated with one another through straight cold water communication circular tubes; a plurality of heating circular tubes are arranged in the cold water circular tubes; the two ends of each heating circular tube are fixedly connected with a heating pipe connecting blocking board, a sealing head outer blocking board is arranged at each outer end opening of each cold water circular tube, and spaces formed by using the heating pipes to be connected with the blocking boards and the sealing head outer blocking boards are defined as heat flow distribution cavities communicated with the heating circular tubes; heating pipe communication circular tubes penetrate the straight cold water communication circular tubes to be welded and communicated with the heating pipe connecting blocking boards; joints of both heating inlet pipes and heating outlet pipes are fixedly connected with the sealing head outer blocking boards on the two sides of each cold water circular tube and are communicated with the heat flow distribution cavities. The heat exchanger is reasonable in heat transmission structure, and water leakage of a communication weld joint between a heat exchanger shell body pipe and each tube, which is caused by thermal expansion stress, is prevented; as the heating circular tubes are arranged in pipe cavities of the cold water pipes to realize multi-pipe heat conducting, the heating area is increased by 45-100% the turbulence is enhanced, and the heat energy utilization rate is improved.

Description

technical field [0001] The invention relates to a heating heat exchanger which can be installed and used on a household heating pipe network for heating and exchanging hot water for bathing, and relates to a pressure-bearing multi-pipe heat conduction water storage heat exchanger with connected pipes; especially relates to a heating system A multi-tube heat-conducting shell-and-tube water storage pressurized heat exchanger and its manufacturing process. Background technique [0002] 1. The applicant applied for the patent No. 200720019175.2 on March 10, 2007, and the utility model name is "anti-scaling type counterflow heat exchanger". The authorized announcement number is CN20102875Y, and the authorized announcement date is: 2008.02. 13. [0003] 2. On September 11, 2011, the applicant applied for a patent with the patent number 201110267666.X and the invention name "Pipe Unicom Parallel Welded Pressure Heat Exchanger", and the date of its authorization announcement was Ja...

AI Technical Summary

Problems solved by technology

[0008] At present, heat exchanger manufacturers generally solve the problem by increasing the number of cold water pipes and increasing the diameter of cold water pipes to increase the water storage capacity in order to have a sufficient amount of hot water for continuous output during bathing, which increases manufacturing costs and wastes raw materials , also increases the volume of the product, increases the transportation cost, and takes up a large space during installation. More importantly, the heat in the center of the heating circular tube is not easy to be contacted and absorbed by the cold fluid. Circulation is lost, so the heat transfer effect is poor

The above existing technical solutions have technical defects such as small heat transfer area, insufficient utilization of heat energy, poor heat transfer effect and high water leakage rate.

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