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Ultra low temperature smoke-discharging heat supply boiler

A heating boiler and ultra-low temperature technology, applied in the field of boilers, can solve the problems of complex system and power consumption, and achieve the effect of improving efficiency and being beneficial to environmental protection

Inactive Publication Date: 2008-09-03
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, a heat pump can be used to recover the waste heat of low-temperature flue gas for heating, but it generally requires additional power consumption, and the system is complicated

Method used

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  • Ultra low temperature smoke-discharging heat supply boiler
  • Ultra low temperature smoke-discharging heat supply boiler

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Experimental program
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Embodiment Construction

[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0010] see figure 1 , the present invention comprises a steam generation section 1, a steam injection device 2 connected with the steam generation section 1, and a low-temperature flue gas heat energy recovery device 3 arranged in the tail flue of the boiler, and the outlet of the low-temperature flue gas heat energy recovery device 3 is also connected to the steam The inlet of the injection device 2 is connected, the low-temperature flue gas heat energy recovery device 3 can also be connected with other low-temperature waste heat working medium 8, and the outlet of the steam injection device 2 is connected with the heat exchange tube group 5 arranged in the condensation section 4 , the outlet of the heat exchange tube group 5 is divided into two paths, one path communicates with the steam generation section 1 through the circulation booster pump 7, and the o...

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Abstract

The invention discloses an ultra low temperature fume-discharging heat-supplying boiler, comprising a steam generating segment, a steam induction device, a low temperature fume heat energy recovering device, a condenser section, a heat exchange tube set, a throttling valve, a circulating working medium and a circulating booster pump. The heat exchange tube set is disposed in the condenser section, and the low temperature fume heat energy recovering device is disposed in a fume channel at the tail of the boiler. The invention solves the problem that the condensing boiler in prior art is difficult to be popularized in heat supply field since the condensing residue heat grade thereof is too low. The inventive boiler can recover residual heat of gas, fuel oil and coal-fired boilers, and also can be used for reconstructing boiler from steam heat supply to hot water supply comprising other fuels.

Description

technical field [0001] The invention relates to a boiler, in particular to a high-efficiency heating boiler capable of recovering and utilizing the thermal energy of the boiler's low-temperature flue gas. Background technique [0002] my country's heating boilers are widely used, but the overall efficiency is not high. Improving the thermal efficiency of heating boilers is of great significance for energy saving and emission reduction. Oil and gas boilers will produce a large amount of flue gas containing more water vapor during combustion. According to calculations, 1m 3 When burning natural gas, more than 1.6kg of water vapor can be produced. In order to utilize the latent heat of this part of the water vapor, a condensing boiler has appeared. In this boiler, through a condensing heat exchanger, the water vapor in the flue gas is condensed by an externally heated refrigerant to achieve recovery. purpose of heat. Usually, when this kind of condensing boiler is used, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B1/18
CPCF24H1/26F01K5/00F24D2200/12F24D2200/18Y02B10/70Y02B30/52
Inventor 刘银河车得福陈凯
Owner XI AN JIAOTONG UNIV
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