Heat exchangers with multiple sets of spiral tubes nested
A heat exchanger and spiral tube technology, applied in the field of heat exchange equipment, can solve the problems of low heat exchange efficiency, complex structure, and limited use of heat exchangers, and achieve simple structure, large heat transfer area, and improved exchange efficiency Effect
Active Publication Date: 2015-10-14
TIANJIN HUANENG THERMAL EQUIP
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcomings of existing heat exchangers such as low heat exchange efficiency, limited use, complex structure and high cost, and to design a heat exchanger with simple structure, full use of space, high heat exchange efficiency, wide application fields and low cost. Multiple sets of spiral tube nested heat exchangers
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[0011] In the embodiment shown in the drawings, the heat exchanger with multiple sets of spiral tube nests is mainly composed of a central straight tube, an inner spiral tube (6), an outer spiral tube (5) and a shell (14), wherein, The central straight pipe, the inner spiral pipe (6) and the outer spiral pipe (5) are arranged in the inner space of the shell (14), and the upper section (2) and the lower section (12) of the central straight pipe have inner layers respectively The interface of the spiral tube (6) and the interface of the outer spiral tube (5); the inner spiral tube (6) is nested on the periphery of the central straight tube, and there is a space between the inner spiral tube (6) and the central straight tube. The inlet (4) of the inner spiral pipe (6) is connected to the upper section (2) of the central straight pipe, and the outlet (13) of the inner spiral pipe (6) is connected to the lower section (12) of the central straight pipe; the outer layer The spiral tu...
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The invention discloses a heat exchanger nested by multiple spiral pipes and relates to a heat exchange device. The heat exchanger is mainly formed by a central straight pipe, the spiral pipes and a shell. The central straight pipe, the inner-layer spiral pipe and the outer-layer spiral pipe are arranged in an inner space of the shell. The periphery of the central straight pipe is nested by the inner-layer spiral pipe, and the periphery of the inner-layer spiral pipe is nested by the outer-layer spiral pipes. An inlet of the inner-layer spiral pipe and an inlet of the outer-layer spiral pipe are connected to the upper segment of the central straight pipe, and an outlet of the inner-layer spiral pipe and an outlet of the outer-layer spiral pipe are connected to the lower segment of the central straight pipe. The inner space of the shell forms a heat exchange chamber. An auxiliary connector a is connected into the lower portion of the shell, an auxiliary connector b is connected out from the upper portion of the shell, a main connector a is connected into the upper end of the central straight pipe, and a main connector b is connected out from the lower end of the central straight pipe. According to the heat exchanger, the multiple spiral pipes are nested, the space of the heat exchange chamber can be fully utilized, the area of a heat exchange surface is increased, and heat exchange efficiency is enhanced. Compared with an existing heat exchanger, the heat exchanger is simple in structure, low in cost and wider in use.
Description
technical field [0001] The invention relates to a heat exchange device, in particular to a spiral tube heat exchanger. Background technique [0002] A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid. It is a general-purpose equipment in chemical industry, petroleum, power, food and many other industrial sectors. It plays an important role in production. It is used as a heater, Coolers, condensers, evaporators and reboilers, etc. The current heat exchangers are divided into three categories: partition type, hybrid type, and heat storage type. The partition type has a simple structure, but its heating surface is limited by the wall of the container, so the heat transfer coefficient is not high; the hybrid type is only limited to allowing fluids to mix with each other. It is used in some occasions; the heat exchange of the regenerative heat exchanger needs to be carried out in two stages, and the heating stage and the cooling stage are carried...
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IPC IPC(8): F28D7/02
Inventor 周开根
Owner TIANJIN HUANENG THERMAL EQUIP