Sewage heat exchanger with scaling function and heat-exchange scaling method

A heat exchanger and sewage technology, applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve the problems of increasing equipment space and equipment investment, loss of heat, and inability to solve heat exchange problems.

Inactive Publication Date: 2013-08-21
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current process cannot solve the heat transfer problem caused by the biological soft fouling of the sewage hea...

Method used

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  • Sewage heat exchanger with scaling function and heat-exchange scaling method
  • Sewage heat exchanger with scaling function and heat-exchange scaling method
  • Sewage heat exchanger with scaling function and heat-exchange scaling method

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Embodiment Construction

[0031] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0032] as attached figure 1 As shown, the sewage heat exchanger with descaling function includes tank heat exchanger and piping system, where:

[0033] The tank heat exchanger is composed of a tank body 18, a tank top cover 19 and a tank bottom cover 20, the tank body and the tank top cover are sealed and fixedly connected, and the tank body and the tank bottom cover are sealed and fixedly connected .

[0034] The top of the tank top cover 19 is provided with a sewage inlet 1 connected to the sewage water inlet pipeline and an exhaust port 16 for discharging gas. It is connected with the water spraying device 2, and the water spraying device is fixed above the inside of the tank body, and is used to divide the sewage flowing into the sewage water inlet pipeline into several strands for spraying; the sewage inlet 1 and the water inlet pipe (not l...

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PUM

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Abstract

The invention discloses a sewage heat exchanger with scaling function and a heat-exchange scaling method. The sewage heat exchanger comprises a tank. A water spraying device, a heat exchanging tube and a sand filtering layer are arranged in the tank from top to bottom, so that water can exchange heat with the heat exchanging tube firstly when dripping from top to bottom, and then flows through the sand filtering layer to realize sewage filtering; and a back wash method can be utilized to restore the working capacity of the sand filtering layer after a filtering layer is invalid. Dirt in the heat exchanging tube can be cleaned through the puffing action of sand back washing.

Description

technical field [0001] The invention relates to the technical field of sewage heat exchange, and more specifically relates to a sewage heat exchanger with descaling function and a heat exchange and descaling method thereof. Background technique [0002] my country began to develop water source heat pumps on a large scale around 2000, and sewage became one of the main water sources. Water intake heat exchange technology is the key technology of non-clean water heat pumps. Since sewage is easy to cause scaling on the heat exchange wall, which affects heat exchange efficiency, there is no proper solution so far. Although some technical solutions make the system achieve the purpose of application, the result is not very ideal. Not only the investment is high, the floor area is large, but also the stability is poor and the efficiency is low. The liquid-solid two-phase flow descaling technology can effectively remove the dirt deposited on the heat exchange wall due to the continu...

Claims

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Application Information

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IPC IPC(8): F28D3/02F28F19/01F28G9/00
Inventor 陈妍张于峰高军凯
Owner TIANJIN UNIV
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