CN2472140Y - Coal heater - Google Patents

Abstract

The utility model relates to a coal-fired heater, which comprises a centrifugal ventilation fan and a chimney; wherein, a jet exhauster is positioned in the chimney, a U-shaped heat pipe is arranged on the upper side of the internal cylinder, three to six return heat exchange tubes are arranged inside the internal cylinder. The utility model provides a coal-fired heater, which has the advantages of full combustion, high heat efficiency and convenience for use.

Description

Coal-fired heater

The utility model is a kind of coal-fired heater that is applied to booth heating.

In the prior art, the boiler indirect heating is adopted in the booth heating, this heating method, and the power consumption high thermal efficiency is low and use inconvenient.

The utility model purpose provides a kind of abundant burning, directly heating, thermal efficiency height, coal-fired heater easy to use.

The purpose of this utility model realizes like this: a kind of coal-fired heater, comprise centrifugal fan, and chimney is characterized in that: be equipped with U type heat exchanger tube above inner barrel, 3-6 backhaul heat exchanger tube is arranged in inner barrel.

Compare with prior art, the utility model is equipped with the negative-pressure firing injector in chimney, make the coal in the combustion chamber obtain restraining not over-emitting black exhaust of divided combustion, above inner barrel, be equipped with U type heat exchanger tube, and turbulent flow is housed, and 3-6 backhaul heat exchanger tube is arranged in inner barrel, make heat exchange area big, the thermal efficiency improves can reach 95%, and output temperature can reach 220-260 ℃.The utility model design and installation has the negative-pressure firing induction apparatus, coal is fully burned in the heater combustion chamber, because being heated of heater, heat transfer medium (air) is heated, by the function of centrifugal fan, with a large amount of heat energy that heater produced, be transported in the room air, form a closed cycle heating system, because of heater directly to the heating that circulates of air in the booth, impel in the greenhouse to be rapidly heated.Evidence adopts the boiler indirect heating to compare with similar booth, and this fire coal heater can be saved fire coal 65%, is desirable energy-conserving product.The utility model is safe and reliable, easy to use, installation simply can be directly installed in the booth, send hot blast by the wind conveying pipe road to two ends, the heating that circulates, and the time spent can not moved the position at any time, need not the dismounting expense.The utility model can be widely used in colored cellar for storing things, vegetables and the mushroom of cold season and cultivate warmhouse booth safe overwintering and heating for residential area.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a kind of structural representation of coal-fired heater.

As shown in Figure 1, a kind of coal-fired heater, comprise centrifugal fan 1, chimney 6, lower perforated plate 3, on manage the utmost point 4, cover plate 7, outer cylinder body 9, hot blast downcomer 10, hot-blast outlet 12, firing door 13, fire bars 14, ash door 15, in chimney, be equipped with injector 5, U type heat exchanger tube 2 is arranged above inner barrel 8,3-6 backhaul heat exchanger tube is arranged in inner barrel, turbulent flow 16 is housed in U type heat exchanger tube, U type heat exchanger tube below is equipped with the anti-baking 11 of making a fire.

Coal-fired by firing door 13 addings, lighting the back makes flame long in the 2 lower end time of staying of U type heat exchanger tube by the anti-baking 11 of making a fire, fully heating U type heat exchanger tube 2, the outer cigarette of U type heat exchanger tube enters chimney 6, in the time of the some coal, centrifugal fan 1 work, negative pressure injector 5 effects that cigarette enters behind the chimney 6 are within it discharged by chimney down, centrifugal fan 1 is sent wind into heat exchanger tube, enter U type heat exchanger tube 2 again, by the turbulent period of the day from 11 p.m. to 1 a.m, the wind direction rotation, thereby fully heated, be discharged to hot-blast outlet 12 by hot blast downcomer 10 through 3-6 backhaul heat exchanger tube.

Claims (4)

1, a kind of coal-fired heater comprises centrifugal fan, and chimney is characterized in that: U type heat exchanger tube is arranged above inner barrel, 3-6 backhaul heat exchanger tube is arranged in inner barrel.

2, a kind of coal-fired heater according to claim 1, it is characterized in that: it also includes the negative-pressure firing injector, is located in the chimney.

3, a kind of coal-fired heater according to claim 1 is characterized in that: turbulent flow is housed in U type heat exchanger tube.

4, according to claim 1,2 or 3 described a kind of coal-fired heaters, it is characterized in that: below U type heat exchanger tube, be equipped with the anti-baking of making a fire.