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Boiler blow-down water heat energy utilization system

A technology for boiler blowdown and heat energy, which is applied in boiler cleaning devices, water/sludge/sewage treatment, descaling and water softening, etc. It can solve the problems of waste of water resources, high pressure of sewage, waste of energy, etc., and achieve the goal of saving heat energy Effect

Active Publication Date: 2014-09-10
CHINA TOBACCO HENAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sewage pressure of the steam boiler is high and the temperature is very high, at least above 100°C. The direct discharge of the boiler sewage not only wastes energy, but also causes a high ambient temperature at the discharge point and a large amount of white water mist around it. If the temperature is directly cooled with tap water, it will cause A lot of water wasted

Method used

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  • Boiler blow-down water heat energy utilization system
  • Boiler blow-down water heat energy utilization system
  • Boiler blow-down water heat energy utilization system

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Embodiment Construction

[0040] figure 1 The direction indicated by the middle arrow is the flow direction of fluid (water or steam).

[0041] like Figure 1 to Figure 4 As shown, the thermal energy utilization system of boiler blowdown water of the present invention includes a softened water station, a boiler 18, a flash tank 19, a heat exchanger 20 and a cooling tank 21; the flow direction of fluid (water or steam) is forward.

[0042]The softened water station includes a water softener 22 and a water tank 23, the water softener 22 is connected to the water tank 23 through a soft water outlet pipe 24, the water tank 23 is connected with a water tank outlet pipe 25 and a water tank connection pipe 26; the water softener 22 is connected with a backwash outlet pipe 27.

[0043] The heat exchanger 20 is connected with a boiler water supply pipe 28 , a cooling tank inlet pipe 29 , a flash tank connecting pipe 30 and the water tank outlet pipe 25 .

[0044] The water inlet of the boiler 18 is connected...

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Abstract

The invention discloses a boiler blow-down water heat energy utilization system which comprises a water softening station, a boiler, a flash tank, a heat exchanger and a cooling tank. The water softening station comprises a water softener and a water tank, the water softener is connected with the water tank through a soft water outlet tube, and the water softener is connected with a backwash water outlet tube. The heat exchanger is connected with a boiler water supply tube, a cooling tank water inlet tube, a flash tank connecting tube and a water tank outlet tube. The boiler is connected with a boiler water supply tube and a boiler blowdown tube. The top of the flash tank is connected with the water tank through a water tank connecting tube, and the bottom of the flash tank is connected with the heat exchanger through the flash tank connecting tube. The cooling tank is connected with the heat exchanger through the cooling tank water inlet tube, and the bottom of the cooling tank is connected with a cooling tank blowdown tube. The side wall of the cooling tank is connected with an overflow tube, and the overflow tube is connected with a sewage pool. According to the boiler blow-down water heat energy utilization system, boiler blow-down water is used for heating boiler inlet water, flash steam is used for heating water in a hot water tank, so that the temperature of the boiler blow-down water is lowered, the temperature of the boiler inlet water is dually heated, and heat energy needed by the boiler is saved.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to the reuse of boiler blowdown water. Background technique [0002] During the operation of the boiler, as the surface water evaporates and becomes steam, the concentration of salt on the surface of the boiler water increases, and the conductivity of the boiler water increases, which is not conducive to the safe operation of the boiler. It is necessary to drain part of the water on the surface of the boiler to reduce or Maintain the salinity concentration of boiler water so that the water quality can meet the needs of boiler operation. [0003] Boiler surface sewage is automatically discharged according to the conductivity of the boiler water. If the boiler has been running for a long time or the water quality is poor, the conductivity reaches the set point, the sewage electric valve is opened, and the boiler starts to discharge sewage. The sewage pressure of the steam boiler is h...

Claims

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Application Information

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IPC IPC(8): F22B37/54F22D1/50F22B1/00C02F5/00
Inventor 王正伟胡俊华何保兵石峰郭利民许世勇马楠
Owner CHINA TOBACCO HENAN IND
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