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Steam boiler sewage automatic recycling system and treatment method thereof

A steam boiler and automatic recycling technology, which is applied in the fields of water/sewage multi-stage treatment, heating water/sewage treatment, water/sludge/sewage treatment, etc. Long-term operation, the quality of boiler steam cannot be guaranteed, etc., to achieve the effect of reducing treatment costs, reducing emissions, and reducing the amount of water replenishment

Active Publication Date: 2016-07-20
SHANGHAI YOUHUA PROCESS INTEGRATED TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] Aiming at the problems in the above-mentioned prior art that the heat and water volume of continuous sewage of steam boilers are not fully utilized, the sewage discharge volume cannot be adjusted in real time, and the quality of boiler steam cannot be guaranteed and affects the safe long-term operation of steam turbines, etc., the present invention provides a Automatic recovery and utilization system of steam boiler sewage and its treatment method

Method used

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  • Steam boiler sewage automatic recycling system and treatment method thereof

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Effect test

Embodiment 1

[0058] This embodiment provides an automatic recycling system for steam boiler sewage, the system includes a sewage refining system 1, a first heat exchanger 2 and a second heat exchanger 3, the sewage outlet of the first heat exchanger 2 is connected to the The sewage inlet of the second heat exchanger 3 is connected, the sewage outlet of the second heat exchanger 3 is connected with the purified water inlet of the first heat exchanger 2 through the sewage refining system 1, and the purified water outlet of the first heat exchanger 2 is connected with the purified water inlet of the first heat exchanger 2. The deaerator 7 outside the automatic recycling system is connected.

[0059] The wastewater purification system 1 includes a filter device and a desalination device.

[0060] The automatic recycling system for steam boiler sewage also includes an automatic control system.

[0061] The cold material inlet of the second heat exchanger 3 is connected with the water outlet of...

Embodiment 2

[0064] The present embodiment provides the processing method of the system described in embodiment 1, applies the system described in embodiment 1 in a 220t / h high-pressure steam boiler, and its processing described method is:

[0065] The continuous discharge of the steam boiler is treated by the pressurized flash tank 5 and the temperature is 200-210 ° C. It enters the first heat exchanger 2 and is treated with the purified water from the sewage purification system 1 in the first heat exchanger 2. Heat exchange until the temperature is 150-160°C, and then enter the second heat exchanger 3, where the second heat exchanger 3 exchanges heat with the desalted water from the desalted water pipe network outside the system until the temperature is 35 ~37°C, enter the sewage refining system 1, carry out refining filtration and desalination treatment in the sewage refining system 1, and then enter the first heat exchanger 2 to exchange heat with the sewage until the temperature is 70-...

Embodiment 3

[0068] The present embodiment provides the processing method of the system described in embodiment 1, applies the system described in embodiment 1 in a 220t / h high-pressure steam boiler, and its processing described method is:

[0069] The continuous drainage of the steam boiler is treated by the pressure flash tank 5 and the temperature is 230-250 ° C. It enters the first heat exchanger 2 and is treated with the purified water from the sewage purification system 1 in the first heat exchanger 2. Heat exchange until the temperature is 190-200°C, and then enter the second heat exchanger 3, where the second heat exchanger 3 exchanges heat with the desalted water from the desalted water pipe network outside the system until the temperature is 38 ~40°C, enter the sewage refining system 1, perform refining filtration and desalination treatment in the sewage refining system 1, and then enter the first heat exchanger 2 to exchange heat with the sewage until the temperature is 90-95°C, ...

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Abstract

The invention provides a steam boiler sewage automatic recycling system and a treatment method thereof. The system comprises a sewage refining system, a first heat exchanger and a second heat exchanger, wherein a sewage outlet of the first heat exchanger is connected with a sewage inlet of the second heat exchanger, a sewage outlet of the second heat exchanger is connected with a refined water inlet of the first heat exchanger through the sewage refining system, and a refined water outlet of the first heat exchanger is connected with a device outside the automatic recycling system. By virtue of the system provided by the invention, on the premise that the sewage heat and the water of a boiler are fully utilized, by controlling the flow of boiler sewage and improving the quality of boiler water, the quality of steam is improved, and the safe and long-term running of a steam turbine is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of industrial steam boilers, and relates to an automatic recovery and utilization system of steam boiler sewage and a treatment method thereof. Background technique [0002] A boiler is a kind of energy conversion equipment, which mainly converts the chemical energy and electric energy in the fuel into heat energy, and outputs high-temperature and high-pressure steam or organic heat carrier through the boiler. Among them, the boiler that generates steam is called a steam boiler. It is a relatively common boiler. Existing steam boilers can usually be divided into electric steam boilers, oil-fired steam boilers, and gas-fired steam boilers according to the energy consumed. [0003] In the production process, in order to control the salt content of the boiler water, remove the slag accumulated in the boiler, and ensure the steam quality, it is necessary to continuously remove the boiler water with a large salt ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10
CPCC02F1/02C02F9/00
Inventor 周斌孙虎良
Owner SHANGHAI YOUHUA PROCESS INTEGRATED TECH CO LTD