A core-pulling pure countercurrent heat exchanger and a heat exchange method using the heat exchanger
A heat exchanger, countercurrent technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problems of weak pressure, no pure countercurrent, no core pulling, etc., to reduce investment, The effect of facilitating equipment maintenance and reducing equipment size
Active Publication Date: 2016-06-29
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a core-pulling pure countercurrent heat exchanger and a heat exchange method using the heat exchanger, which are used to solve the problems of existing heat exchangers that cannot be core-pulled, cannot be purely countercurrent, and are under pressure. not strong
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[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0024] Such as figure 1 As shown, this embodiment provides a core-pulling pure countercurrent heat exchanger, including a left-end tube box 1, a shell-side cylinder 2 and a right-end tube box 3; the left-end tube box 1 is connected to the shell side through a left-end tube plate 4 One end of the cylinder body 2 and the other end of the shell side cylinder body 2 are connected to the right end pipe box 3 through the tube sheet flange 5 and the shell side reverse flange 6 in turn; the tube sheet flange 5 and the shell side reverse flange 6 are connected by bolts connected, and the tube sheet flange 5 is placed inside the shell side cylinder body 2; telescopic support tubes placed in the shell side cylinder body 2 are ...
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The invention relates to a core-pulling pure counterflow heat exchanger and a heat exchange method thereof. The heat exchanger comprises a left end tube box, a shell pass cylinder body and a right end tube box. The left end tube box is connected with one end of the shell pass cylinder body through a left end pipe plate, and the other end of the shell pass cylinder body is connected with the right end tube box sequentially through a tube plate flange and a shell pass reverse flange. The tube plate flange and the shell pass reverse flange are connected through a bolt, and the tube plate flange is placed on the inner side of the shell pass cylinder body. A telescopic supporting tube and a flexible tube bundle which are both arranged in the shell pass cylinder body are connected between a left end tube plate and the tube plate flange. The structure of the heat exchanger forms an independent tube pass space and a shell pass space, tube pass media conduct heat exchange in the tube pass space, and shell pass media conduct heat exchange in the shell pass space. According to the pure counterflow heat exchanger, the core-pulling structure is used, and the requirement for pure counterflow heat exchange of the tube pass media and the shell pass media can be met simultaneously.
Description
technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a core-pulling pure countercurrent heat exchanger and a heat exchange method using the heat exchanger. Background technique [0002] The pure countercurrent process means that the cold and hot fluids in the heat exchanger flow completely in opposite directions, so that the heat is transferred from the hot fluid to the cold fluid to meet the specified process requirements. Compared with the co-current or co-current process, it has the advantages of high heat exchange efficiency, large heat exchange capacity, high energy utilization rate, and reduced heat exchanger area. Shell-and-tube heat exchangers are widely used in various industries, especially in the petrochemical industry. As shown in Table 1, the fixed tube-sheet heat exchanger cannot pull the core at present, and the U-shaped tube and floating head heat exchanger cannot. To meet the pure countercurrent process re...
Claims
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IPC IPC(8): F28D7/02F28F9/06
Inventor 陈曦陈再华李静李爽张颂邓全文王丽荣
Owner BC P INC CHINA NAT PETROLEUM CORP