Multi-shell tube-shell-and-tube -type condenser with heat recoverer

Abstract

The invention relates to a multi-shell shell-and-tube-shell- type condenser with a heat recoverer. The condenser comprises a channel (16), tube plates (2 and 7), a shell (4) and an end cover (8). The tube plates are respectively arranged at both ends of the shell, the channel (16) is connected with the outer side of the tube plates (2) and internally provided with a separator to divide the channel into a heat recovery area (9) and a condensing area (14), the shell is provided with the end cover (8) at the other end and internally provided with a heat exchange pipe (5) which penetrates through the tube plates (2 and 7) and are communicated the channel and the end cover, and the shell is internally provided with a longitudinal deflectorflow-guiding plate (6) to divide the interior of the shell into the overheat steam heat recovery area and the condensing area. The heat exchanger of the invention can recover overheat steam through the separation of the overheat steam heat recovery area and the condensing area.

Description

technical field [0001] The invention relates to heat exchange equipment, especially a multi-shell-side shell-and-tube condenser combining heat recovery and condensation. Background technique [0002] The air conditioning unit with heat recovery can produce domestic hot water while cooling, saving energy and reducing the amount of cooling water, which is energy-saving and environmentally friendly. However, at present, it is mostly realized by connecting condensers in series or in parallel, which makes the control and pipeline connection complicated. , increasing the overall size of the unit and increasing the cost of the unit. Most of the condensers currently used have a single-shell shell side. When the heat transfer of the heat exchanger is large, the diameter of the shell is large and the flow cross-section of the single shell side is large, resulting in a low velocity of the fluid on the shell side, resulting in a large heat exchanger. The overall heat transfer coefficie...

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Problems solved by technology

[0002] The air conditioning unit with heat recovery can produce domestic hot water while cooling, saving energy and reducing the amount of cooling water, which is energy-saving and environmentally friendly. However, at present, it is mostly realized by connecting condensers in series or in parallel, which makes the control and pipeline connection complicated. , increasing the overall size of the unit and increasing the cost of the unit

Most of the condensers currently used have a single-shell shell side. When the heat transfer of the heat exchanger is large, the diameter of the shell is large and the flow cross-section of the single shell side is large, resulting in a low velocity of the fluid on the shell side, resulting in a large heat exchanger. The overall heat transfer coefficient of the heater is not high, and the heat transfer efficiency is low

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