Tube-wound heat exchanger with separated core and shell
A technology of wound-tube heat exchangers and core shells, applied in indirect heat exchangers, heat exchanger types, heat exchanger shells, etc., can solve the problems of traditional structures that are difficult to process and manufacture, so as to prevent pipe rupture and improve design The effect of precision
Active Publication Date: 2018-11-20
SHANGHAI JIAO TONG UNIV +1
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Problems solved by technology
[0007] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a coil-wound heat exchanger with separated core and shell, which solves the problem that the traditional structure is difficult to process and manufacture after the heat exchanger is miniaturized, and can be used for industrial-grade heat exchangers in natural gas liquefaction. Scale-up experiments on thermal equipment
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Embodiment 1
[0024] Such as figure 2 with image 3 As shown, this embodiment includes a central cylinder 4, a groove-type homogenizer 5, and an annular sealing section 7 arranged in the housing. The central cylinder 4 is arranged in the housing 2 to form an annular cavity between the two. The distributor 5 is nested in the housing 2 and sleeved on the central cylinder 4, the annular sealing section 7 is nested in the housing 2 and connected to the bottom of the homogenizer 5, and the sleeve 3 is disposed in the annular cavity and sleeved On the annular sealing section 7;
[0025] Such as image 3 with Figure 4 As shown, the bottom plate of the homogenizer 5 is symmetrically provided with two gas phase circulation holes 9 near the edge, and the bottom plate of the homogenizer 5 is uniformly distributed with a plurality of liquid phase circulation holes 8 except for the gas phase circulation holes 9.
[0026] The diameter of the liquid phase circulation hole 8 is 0.2 mm-2 mm; the gas phase cir...
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The invention discloses a core shell separated wound tube heat exchanger, and belongs to the technical field of low temperature heat exchange. The core shell separated wound tube heat exchanger comprises a shell, a sleeve, a center tube, a uniform distributor and an annular sealing section which are sequentially arranged from outside to inside, wherein an annular cavity is formed between the center tube and the shell; the uniform distributor of a groove-shaped disc structure and the annular sealing section are sequentially embedded at the outer part of the sleeve; the annular sealing section is connected with the bottom of the uniform distributor; a plurality of wound tubes are arranged inside the sleeve; one ends of the wound tubes directly stretch out of the bottom of the uniform distributor; the other ends of the wound tubes stretch out of the top of the uniform distributor through gas phase circulation holes; and a plurality of uniformly distributed liquid phase circulation holes and the plurality of symmetrical gas phase circulation holes are formed in the uniform distributor. According to the core shell separated wound tube heat exchanger, the problem that after the heat exchanger is miniaturized, a traditional structure is difficult to process and manufacture can be solved, and the core shell separated wound tube heat exchanger can be utilized in amplification tests of industrial heat exchange devices in natural gas liquefaction.
Description
Technical field [0001] The invention relates to a technology in the field of low-temperature heat exchange, in particular to a tube-wound heat exchanger with separated core and shell. Background technique [0002] The wound tube heat exchanger is the primary low temperature heat exchanger of choice for large onshore natural gas liquefaction plants and offshore natural gas floating platforms, with a share of over 90%. Its structure is composed of thousands of round pipes alternately wound on the central tube layer by layer and sealed by a shell. The initial investment of a single wound tube heat exchanger is large, and the reliable design method is to obtain experimental data through the amplification experiment of industrial-grade equipment to improve the design accuracy. [0003] The scale-up experiment of the wound tube heat exchanger is limited by the site and cost, and the test can only be carried out after the diameter and height are reduced based on similar criteria. The di...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F28D7/02F28F9/22F28F9/00
CPCF28D7/02F28F9/005F28F9/22
Inventor 任滔段钟弟丁国良陈杰密晓光
Owner SHANGHAI JIAO TONG UNIV