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Double-heat-source heat exchanger

A heat exchanger and dual heat source technology, applied in the direction of heat exchanger types, indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of instability, poor heat taste, insufficient heat, etc., to reduce the quantity and improve Effect of heat transfer coefficient and land saving

Pending Publication Date: 2018-11-30
ANHUI SHIHUA ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Various low-temperature heat resources widely exist in oil refining enterprises, and usually have disadvantages such as poor heat quality, insufficient heat, and instability. The parts that require low-temperature heat must be supplemented by other heat sources (such as steam) at the same time, and two sets are required. or more number of heat exchangers
However, in some installations that have been completed and put into operation, there is often no place to add a new heat exchanger, resulting in a considerable part of the low-temperature heat resources that cannot be effectively used, especially those old installations that were built earlier, have high energy consumption, and tight locations. more prominent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 , image 3 with Figure 4 As shown, the heat exchanger of this embodiment includes a shell 1, a front end tube box 2, an upper tube bundle 3, a lower tube bundle 4, an upper tube inlet 21, an upper tube outlet 22, a lower tube inlet 23, The lower tube side outlet 24, the partition partition 5 and the rear end head 6; the partition partition 5 includes a horizontal partition 51 and a vertical partition, and the horizontal partition 51 and the vertical partition 52 are intersected to form ten The font is supported in the front end tube box 2, the upper tube bundle 3 is arranged on the upper part of the horizontal partition 51 along the length direction of the casing 1, and the lower tube bundle 4 is arranged on the horizontal partition along the length direction of the casing 1. The lower part of the plate 51, the front-end tube box 2 is connected to the shell 1 through a flange, the upper tube-side tube bundle 3 and the lower tube-side tube bundle 4 ar...

Embodiment 2

[0025] Such as figure 2 As shown, the upper tube-side tube bundle 3 and the lower tube-side tube bundle 4 are straight tube heat exchange tubes, the rear end head 6 of the shell 1 is detachable, and the rear end head 6 is connected to the shell 1 through a flange. At the rear end, the rear end head 6 is provided with a divider 7 for separating the tubes.

[0026] Other implementations are the same as in Example 1.

[0027] When the structure of Embodiment 1 or Embodiment 2 is used as a reboiler, the shell-side material is fed from the shell-side inlet and outlet 12 (inlet) at the bottom of the shell 1 and discharged from the upper shell-side inlet and outlet 11 (exit). To be heated, a heat source with a lower temperature circulates in the lower tube bundle 4 , and a heat source with a higher temperature circulates in the upper tube bundle 3 .

[0028] When the heat exchanger is used as a condenser, the shell-side material is fed from the shell-side inlet and outlet 11 on th...

Embodiment 3

[0030] Such as Figure 5-8 As shown, the heat exchanger of this embodiment is used as a heat exchanger with two shell sides, and a longitudinal partition 8 is provided to separate the shell 1 into upper and lower shell side structures, and the shell side materials pass through the shell side inlet and outlet 11, 12. Feeding and discharging materials can be selected from top to bottom or bottom to top, and different refrigerants or heat sources circulate in the upper tube bundle 3 and the lower tube bundle 4 respectively.

[0031] Other implementations are the same as in Example 1.

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PUM

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Abstract

The invention discloses a double-heat-source heat exchanger. A front-end tube box is connected in a shell body through a flange, a rear end socket is positioned at the rear part of the shell body, separation partition plates comprise horizontal partition plates and vertical partition plates, the horizontal partition plates and the vertical partition plates are arranged in a crossed manner and aresupported in the front-end tube box, a tube clamp is arranged in the front-end tube box and is divided into an upper tube pass and a lower tube pass through the horizontal partition plates, the uppertube pass and the lower tube pass are connected to the front-end pipe box through pipe plates, the upper tube pass and the lower tube pass are correspondingly divided into an upper left tube pass andan upper right tube pass, and a lower left tube pass and a lower right tube pass through the vertical partition plates, and a shell pass inlet and a shell pass outlet are formed in the upper portion and the lower portion of the shell body respectively. According to the heat exchanger, two heating heat sources in the same shell body can run independently and do not interfere with each other, the number and the occupied area of the heat exchanger are not increased, and the heat exchanger is particularly suitable for a working condition that a reboiler at the bottom of a tower needs increase of the low-temperature heat.

Description

technical field [0001] The invention relates to a multi-media heat transfer heat exchanger, in particular to a dual heat source heat exchanger. Background technique [0002] Various low-temperature heat resources widely exist in oil refining enterprises, and usually have disadvantages such as poor heat quality, insufficient heat, and instability. The parts that require low-temperature heat must be supplemented by other heat sources (such as steam) at the same time, and two sets are required. or more number of heat exchangers. However, in some installations that have been completed and put into operation, there is often no place to add a new heat exchanger, resulting in a considerable part of the low-temperature heat resources that cannot be effectively used, especially those old installations that were built earlier, have high energy consumption, and tight locations. more prominent. Contents of the invention [0003] The technical problem to be solved by the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28D7/06
CPCF28D7/06F28D7/1646
Inventor 吴岳林张丽君
Owner ANHUI SHIHUA ENG & TECH