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Automatic control biomass burning gas heating furnace for plastic greenhouse

A technology for plastic greenhouses and heating furnaces, which is applied in the manufacture of combustible gases, air heaters, and climate change adaptation. It can solve the problems of inability to realize automatic control, low heat utilization rate, and large heat loss, and solve the problem of frequent feeding. Improve the heat utilization rate and the effect of strong continuous working ability

Active Publication Date: 2012-01-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large heat loss, low heat utilization rate, easy to cause crop burns, frequent feeding, and inability to realize automatic control in the existing hot blast stove technology, and to provide an automatic control biomass gas-fired plastic greenhouse supply stove

Method used

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  • Automatic control biomass burning gas heating furnace for plastic greenhouse
  • Automatic control biomass burning gas heating furnace for plastic greenhouse
  • Automatic control biomass burning gas heating furnace for plastic greenhouse

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific implementation mode one: combine Figure 1-Figure 5 Describe this embodiment, the automatically controlled biomass gas-fired plastic greenhouse heating furnace of this embodiment includes a heating furnace body 5, a gas stove 6, a first blower 7, a hot air duct 8, an outlet flue 9, a hot smoke pipe row 10, A chimney 11, an induced draft fan 12 and a plurality of internally threaded and externally finned tubes 13, the heating furnace body 5 is composed of a refractory cavity 15 and a heat preservation cavity 16 from bottom to top, and the lower outer wall of the refractory cavity 15 is provided with air intake Inlet 15-1, the gas stove 6 is set in the refractory cavity 15, and is located above the air inlet 15-1, the upper outer wall of the refractory cavity 15 has an observation window 15-2, and the observation window 15-2 is located on the gas stove 6, the plurality of internally threaded outer finned tubes 13 are arranged in the heat preservation chamber 16, ...

specific Embodiment approach 2

[0010] Specific implementation mode two: combination figure 1 and Figure 5 This embodiment will be described. The female threaded outer finned tube 13 of this embodiment is made of heat-resistant cast steel or heat-resistant cast iron. With such setting, the heat resistance is strong. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0011] Specific implementation mode three: combination Figure 4 To illustrate this embodiment, the diameters of the plurality of hot air outlet holes 8 - 1 in this embodiment gradually increase from the inlet end 8 - 2 of the hot air duct 8 to the outlet end 8 - 3 of the hot air duct 8 . With such setting, hot air is evenly sent into the greenhouse. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

[0012] Specific implementation mode four: combination image 3 Describe this embodiment, the hot smoke pipe row 10 of this embodiment is composed of a plurality of hot smoke pipes 10-1 arranged side by side, the smoke inlet ends of the multiple hot smoke pipes 10-1 communicate with the outlet flue 9, and the multiple hot smoke pipes The smoke outlet of 10-1 communicates with the chimney 11. Such setting increases the heat dissipation area, which is beneficial to heat exchange. Other compositions and connections are the same as those in ...

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Abstract

The invention discloses an automatic control biomass burning gas heating furnace for a plastic greenhouse, relates to a gas heating furnace for the plastic greenhouse, and solves the problems of large heat loss, low heat utilization rate, easy cause of crop burn, frequent charging, and incapability of realizing automatic control in the conventional blast stove technology. A hot air duct is horizontally arranged along the length direction of the greenhouse; the axial direction of the pipe wall on the lower part of the hot air duct is provided with a plurality of hot air outlet holes; a biomassgasification furnace is arranged on the outer part of a heating furnace body; a thermocouple passes through the side wall of a fire-resistant cavity and penetrates the fire-resistant cavity; the external end of the thermocouple is connected with a fan through a signal wire; the signal wire between the thermocouple and the fan is provided with a fan controller; a second fan is arranged at the air inlet of the biomass gasification furnace; the outlet of the biomass gasification furnace is communicated with a gas stove inside the fire-resistant cavity through an air supply pipe; and the air supply pipe between the biomass gasification furnace and the gas stove is provided with a tar filter. The gas heating furnace is used for heating the plastic greenhouse.

Description

technical field [0001] The invention relates to a gas-fired plastic greenhouse heating furnace, in particular to an automatic control biomass-burning gas-fired plastic greenhouse heating furnace, which belongs to the technical field of heating and heating devices. Background technique [0002] At present, plastic greenhouses generally use devices such as fire walls and ground dragon flues for heating in winter. The disadvantages are that they occupy a large area, slow heating speed, low thermal efficiency, inconvenient use and maintenance, and are prone to gas poisoning accidents. Using radiators as a heating device solves the problems of large floor space and the like, but the installation cost is very high and it is not easy to popularize. [0003] The existing hot blast stove technology is usually a direct combustion method, that is, after the coal is burned in the combustion chamber, part of the heat is absorbed by the heat-absorbing pipe in the furnace, and the high-tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/24F24H3/08C10J3/20
CPCY02A40/25
Inventor 别如山董凯鄂佐星刘学忠
Owner HARBIN INST OF TECH