Flat shell and tube type heat exchanger
A tube-and-tube heat exchanger, flat-shaped technology, applied in the field of flat-shaped tube-and-tube heat exchangers, can solve problems such as metal plate corrosion, medium leakage, blockage, etc., and achieve the effect of simple assembly and convenient processing
Inactive Publication Date: 2016-01-06
CHONGQING ZEQINGJU SCI & TECH DEV
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Problems solved by technology
Traditional heat exchangers are mostly shell-and-tube heat exchangers, and their disadvantage is that the circulating medium requires high purity, otherwise it is easy to cause blockage
Chinese Patent Grant No. CN201740434U discloses a spiral plate heat exchanger. Metal plates are arranged in a spiral shape from the inside to the outside. On the one hand, the distance between the metal plates will be inconsistent, which will affect the heat exchange efficiency; on the other hand, the metal plates will be corroded, resulting in medium leakage, which will affect the use effect and service life of the equipment
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[0012] The present invention will be further described below in conjunction with specific examples.
[0013] like figure 1 and figure 2 As shown, a flat tube-and-tube heat exchanger includes a cylindrical shell, a cylindrical inner core, a medium inlet and outlet placed on the cylindrical shell, and stepped hollow ends installed at both ends of the cylindrical shell. , one of the stepped hollow ends is provided with an inlet, and the other stepped hollow end is provided with an outlet, the first and second steps of the stepped hollow end are provided with threads, and the cylindrical inner core is composed of two circular It consists of an end plate and a number of flat tubes fixed between the two end plates. The two ends of the flat tube are cylindrical with a length greater than the thickness of the circular end plate. The surface of the circular end plate is provided with a stepped hollow The first-order matching thread of the end, the two ends of the cylindrical shell a...
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The invention discloses a flat shell and tube type heat exchanger. The flat shell and tube type heat exchanger comprises a cylindrical shell, a cylindrical inner core, a medium access port formed in the cylindrical shell, and step-shaped hollow ends mounted at the two ends of the cylindrical shell, wherein an inlet is formed in one of the step-shaped hollow ends; an outlet is formed in the other one of the step-shaped hollow ends; threads are arranged on the first steps and the second steps of the step-shaped hollow ends; the cylindrical inner core consists of two circular end plates and multiple flat tubes fixed between the two end plates; the two ends of the flat tubes are cylinders with lengths larger than the thicknesses of the circular end plates; threads fitting the first steps of the step-shaped hollow ends are arranged on the surfaces of the circular end plates; and external threads fitting the second steps of the step-shaped hollow ends are arranged at the two ends of the cylindrical shell. The flat shell and tube type heat exchanger adopts the step-shaped hollow ends and adds the threads inside, so that the step-shaped hollow ends are tightly connected with the inner core and the cylindrical shell through the threads, the assembly is simple, and the machining is convenient.
Description
technical field [0001] The invention relates to a heat exchanger device used for heat exchange in the chemical industry, in particular to a flat tubular heat exchanger. Background technique [0002] Heat exchanger devices are widely used in the chemical industry, mainly for heat exchange between different media. Traditional heat exchangers are mostly shell-and-tube heat exchangers, and their disadvantage is that the circulating medium needs to have a high degree of purity, otherwise it is easy to cause blockage. Chinese Patent Grant No. CN201740434U discloses a spiral plate heat exchanger. Metal plates are arranged in a spiral shape from the inside to the outside. On the one hand, the distance between the metal plates will be inconsistent, which will affect the heat exchange efficiency. On the other hand, the metal plates will be corroded, resulting in medium leakage, which will affect the use effect and service life of the equipment. Contents of the invention [0003] A...
Claims
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IPC IPC(8): F28D7/16F28F9/06
Inventor 常小燕
Owner CHONGQING ZEQINGJU SCI & TECH DEV