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Porous medium combustion hot water boiler

A technology for porous media and hot water boilers, applied in the direction of burners, combustion methods, combustion types, etc., can solve the problems of increasing boiler flue gas resistance, increasing flue gas resistance, and large energy waste

Pending Publication Date: 2020-10-20
SONGSHAN LAKE MATERIALS LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, most of the current gas-fired hot water boilers that achieve low-nitrogen combustion use FGR flue gas external circulation technology and fully premixed surface combustion technology, which has high exhaust gas temperature, large energy waste, low thermal efficiency, and flashback or blockage. safety hazards and other defects
FGR flue gas external circulation technology is difficult to achieve low nitrogen and stability. After part of the flue gas is withdrawn, the resistance of the flue gas will increase, the power consumption rate will increase, and part of the heat will be lost.
Fully premixed surface combustion technology requires a large amount of air to cool the combustion temperature to achieve low nitrogen emissions, but providing a large amount of excess air will not only increase the resistance of the boiler flue gas, but also reduce the boiler thermal efficiency and the condensation dew point temperature of the flue gas, due to surface combustion The woven mesh is generally dense, and it is also prone to blockage, causing potential safety hazards

Method used

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Examples

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no. 1 example

[0049] See figure 1 As shown, this embodiment provides a porous media combustion hot water boiler 100, which is specifically a condensing vacuum hot water boiler. The vacuum hot water boiler forms a negative pressure vacuum environment inside the closed furnace body, fills the body with heat medium water, heats the heat medium water by combustion or other means, and then evaporates and condenses the heat medium water to the heat exchanger , and then the heat exchanger is used to heat the water that needs to be heated. Vacuum hot water boilers work by using the characteristics of water at different pressures and different boiling temperatures. In the state of negative pressure, the combustion makes the temperature of the heat medium water rise rapidly to the saturation temperature, and steam of the same temperature is generated on the water surface. To heat the cold water in the heat exchanger, the cold water in the heat exchanger tube is heated by the steam outside the tube a...

no. 2 example

[0065] See image 3 and Figure 4 As shown, this embodiment provides a porous medium combustion hot water boiler 200, which is specifically a gas-fired hot water boiler, that is, a boiler that uses the heat of gas combustion to directly heat water to obtain hot water. The porous medium combustion hot water boiler 200 specifically includes a porous medium combustion head 220 , a relatively closed combustion chamber 120 , and a water collection tank 210 surrounding the combustion chamber 120 . The porous medium combustion head 220 is installed on one end of the combustion chamber 120, and the combustion surface is vertically arranged and faces in the combustion chamber 120. The other end of the combustion chamber 120 away from the porous medium combustion head 220 is provided with a smoke outlet 121. The combustion of the combustion chamber 120 The flue gas generated on the surface flows to the smoke exhaust port 121 in the combustion chamber 120; in the combustion chamber 120,...

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Abstract

The invention provides a porous medium combustion hot water boiler, and relates to the field of hot water boilers. The porous medium combustion hot water boiler comprises a porous medium combustion head and a relatively closed combustion chamber, wherein the porous medium combustion head is mounted at one end of the combustion chamber, a combustion surface faces towards the combustion chamber, thecombustion chamber is further provided with a smoke exhaust port, and smoke generated by the combustion surface of the combustion chamber flows into the smoke exhaust port in the combustion chamber;and the combustion chamber is internally provided with a heat exchange tube for containing a heat exchange medium to realize heat exchange. The porous medium combustion hot water boiler is compact instructure, high in heat efficiency, low in NOx and Co discharge amount and high in safety, and realizes the economic and social benefits of energy conservation and emission reduction.

Description

technical field [0001] The present application relates to the field of hot water boilers, in particular to a porous medium combustion hot water boiler. Background technique [0002] A gas-fired hot water boiler is a boiler that produces hot water. It refers to a thermal energy device that uses the heat energy released by fuel combustion or other heat energy (such as electric energy, solar energy, etc.) to heat water to a rated temperature. At present, the main structure of most gas-fired hot water boilers is a horizontal internal combustion structure. The flue gas generated by fuel combustion is in the same flow direction as the water medium to be heated. In order to heat the water to the rated temperature, the size of the main structure is large to ensure The heat exchange area and time between flue gas and water medium. [0003] In addition, most of the current gas-fired hot water boilers that achieve low-nitrogen combustion use FGR flue gas external circulation technolog...

Claims

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Application Information

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IPC IPC(8): F24H1/34F24H8/00F24H9/00F24H9/18F24H9/20F28F1/12F23D14/02F23D14/66F23J15/06
CPCF23D14/02F23D14/46F23D14/66F23J15/06F24H8/00F24H9/0005F24H9/1836F24H9/2035F28B1/02F28B9/08F28F1/12F28F9/24Y02B30/00Y02E20/30Y02E20/34
Inventor 付超张振文任志恒孔凡磊王乃豪战斗
Owner SONGSHAN LAKE MATERIALS LAB