Pressing positioning device for pipe winding

Abstract

The invention relates to a pressing positioning device for pipe winding. The pressing positioning device is characterized by comprises a base frame provided with a bottom plate and a top plate which can be opened and closed relatively, a pressing wheel which is arranged in the base frame and can rotate around a first rotary shaft arranged in the center of the pressing wheel, a positioning wheel which is arranged in the base frame and can rotate around a second rotary shaft arranged in the center of the positioning wheel, and a tensile force adjusting device which is connected between the top plate and the bottom plate and used for adjusting the pressure of the pressing wheel and the positioning wheel on a heat exchange pipe, wherein the first rotary shaft is supported on the top plate; thesecond rotary shaft is supported on the bottom plate; the positioning wheel is located under the pressing wheel and provided with a peripheral positioning groove; and a space allowing the heat exchange pipe to penetrate through is formed between the pressing wheel and the positioning groove of the positioning wheel. Compared with the prior art, accurate thread pitch positioning of the heat exchange pipe and proper tensioning force can be provided, the structure is simple, and all parts are easy and convenient to replace.

Description

technical field [0001] The invention belongs to the technical field of core body preparation of a coiled heat exchanger, and in particular relates to a pressing and positioning device used for coiling a heat exchange tube. Background technique [0002] The coiled tube heat exchanger is a heat exchange device in which the heat exchange tubes are alternately wound in the shape of a helix in the space between the central tube and the outer shell. It has more prominent advantages than ordinary tube and tube heat exchangers. , such as compact structure, large heat transfer area per unit volume, wide temperature range, adaptability to thermal shock, self-elimination of thermal stress, and heat transfer of multiple media at the same time. [0003] Since the winding quality of each heat exchange tube will directly affect the heat exchange performance of the heat exchanger, the design of each device used for winding the heat exchange tube is very important. At present, the winding o...

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Problems solved by technology

At present, the winding of the core body of the domestic tube-wound heat exchanger basically relies on the operator to manually pull the heat exchange tube for winding, and basically adopts a single winding method. This operation method has the following problems: 1. Single winding Due to the large number of rotations in winding, it is easy to cause fatigue and wear between parts on the core body; 2. Manual drawing of the tube cannot accurately control the pitch, and the degree of tightness of the heat exchange tube is uneven; 3. Tube winding operation The labor intensity of personnel is high, and the safety risk is high; 4. The overall size of the core body is not easy to control

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