CN2117531U - Water boiler for producing steam and hot water - Google Patents

Abstract

The utility model relates to a water boiler for producing steam and hot water which comprises outer gallbladders with different structures. The utility model is characterized in that the water boiler for producing steam and hot water also comprises an inner gallbladder, a spherical surface burner and a close burning chamber. Coal gas and petroleum liquid gas can be burnt. In order to enhance thermal efficiency, the bottom of the inner gallbladder is designed into a plane, the inner wall of the outer gallbladder of a miniature water boiler is smooth, the inner wall of the outer gallbladder of a large-sized water boiler is provided with a water pipe which is communicated with the gallbladder, burning holes on the burner spherical surface are homogeneously distributed, and the close burning chamber is provided with a burning help vent. The main fire of the burner directly heatings the bottom of the inner container; outer fire heatings the inner wall of the outer gallbladder. Produced hydrotherm is absorbed by the outer wall of the inner gallbladder, the inner wall of the outer gallbladder and the water pipe of the outer gallbladder. The thermal efficiency can be reached more than 80%.

Description

Water boiler for producing steam and hot water

The utility model belongs to gas heating type steam-water dual-purpose drinking water boiler.

The steam-water dual-purpose drinking water boiler all adopts the coal-fired mode of heating of a bladder structure basically at present.Its shortcoming is that the thermal efficiency is low, the highlyest can only reach 65%; Environmental pollution is serious.Chaoyang, Beijing drinking water boiler factory produces a kind of combustion gas steam-water dual-purpose drinking water boiler.This drinking water boiler is made of outer courage, gas burner and A-frame.Outer courage is filled with water, and inwall is a heat-absorbent surface.Be positioned at the burner of outer courage bottom, the combustion tube that is tilted by main breather pipe of annular and weldering several outside courage inwall thereon constitutes.Utilize the space gravity-flow ventilation of A-frame lower end combustion-supporting, the flame of burner directly heats the inwall of outer courage.The shortcoming of this structure drinking water boiler is: 1. the space of water courage inwall is bigger, and the hot-fluid absorptivity is low; 2. the combustion chamber is not an enclosed construction, and it is big to scatter and disappear at the lower end heat.Thereby the thermal efficiency is low, can only reach about 70%.

The purpose of this utility model is to have the more combustion gas steam-water dual-purpose drinking water boiler of high thermal efficiency by adopting new parts and structure, making.

In the utility model, drinking water boiler is by outer courage 4, and inner bag 3 has sphere burner 7, closed chamber's 8 formations in even distributed combustion hole.Be connected with steam pipe 2 by water pipe 12 between the outer courage of inner bag and communicate.Its heating process is as follows: the sphere burner produces the equally distributed flame of sphere.Main flame directly heats at the bottom of the inner bag, be to improve the efficiency of heating surface, is designed to the plane at the bottom of the inner bag, the inwall of the outer courage bottom of outer flame heat, and flame is fully utilized.Owing to adopt enclosed combustion chamber, then the heat of burner generation can not conduct, spread out from the bottom, can only form hot-fluid between inside and outside courage and move upward, heat is constantly absorbed by the inwall of the outer wall of inner bag and outer courage in process of flowing, and conduction is to the water of being contained in the inside and outside courage.Because the hot-fluid stroke is long, the heating surface area that outer courage inwall and inner bladder outer wall form is bigger, so have only a spot of heat to discharge from exhanst gas outlet.In heating process, the programming rate of water is greater than the programming rate of water in the outer courage in the inner bag, and its temperature difference is carried out heat exchange by the connection water pipe 12 and the steam pipe 2 of inside and outside courage.For combustion gas is fully burned, closed chamber is provided with the air inlet 9,10,11 of band plate.For drinking water boiler capacious, because the size of inner bag is subjected to the restriction of firing rate, that can not design is very big, thereby forms bigger space between the inside and outside courage, is unfavorable for making full use of of heat.In this case, for preventing the loss of hot-fluid, be welded with the some water pipes that communicate with courage 5 outside on the courage inwall.These water pipes are except that two ends have very little sweep, and major part all is parallel between the inside and outside courage.Out-of-date when the type of thermal communication that burner produces, can heat these water pipes effectively.

The utility model effect is splendid.At first be thermal efficiency height, design load reaches more than 80%, than the high 15-20% of similar coal-fired steam-water dual-purpose drinking water boiler, compares higher more than 10% than single courage drinking water boiler of technology.It two is that water is fast on the boiling water, and diameter is that the drinking water boiler of 1m only needs 25 minutes; Less than the drinking water boiler of 1m, only need 15-20 minute; It three is that function is many, can be for 50-800 people's drinking-water, steamed rice; Can drive maximum heating area 1,200m ²Also can be used for having a shower; It four is a fuel with coal gas and oil liquefied gas, sufficient combustion, and the dirt of not discharging fume, free from environmental pollution; It five is simple in structure, and volume is little, transportation, install, operation is all very convenient.

Description of drawings: Fig. 1 combustion gas steam-water dual-purpose drinking water boiler profile, 1. exhanst gas outlet 2. connects the steam pipe of inside and outside courage, and 3, inner bag; 4. outer courage; 5. outer courage water pipe; 6. internal bladder support; 7. sphere burner; 8. closed chamber; 9.10. the combustion chamber ventilating opening of band plate; 12. inside and outside courage connects water pipe; 13. oral siphon; 14. outlet pipe; 15. steam valve.Fig. 2 combustion gas steam-water dual-purpose drinking water boiler is overlooked Figure 11, the combustion chamber ventilating opening of band plate.

The vertical drinking water boiler of embodiment 1:2.4m/1m.Outer courage external diameter 1,000mm, internal diameter 800mm, high 2400mm; Inner bag diameter 400mm, high by 1,100mm.Outer gall bladder wall iron plate thickness δ=6mm, inwall δ=8mm; Inner bag wall thickness δ=4mm; Outer courage inwall is welded with 27 water pipes of φ 38 * 3mm, and the circle row diameter that water pipe forms is 600mm.Heating surface area 8.7m ²Directly be placed on the smooth cement flooring by the combustion chamber base.The drinking water boiler 500Kg that is filled with water.Adopt coal gas to make fuel, the water time is 25 minutes on the boiling water, and Fuel Consumption is 42m ³/ h.Vapor (steam) temperature is 118 ℃, evaporation capacity 100Kg/h.The thermal efficiency is 80.8%.Can supply heating area 600m for 800 people drinking-water, steamed rice ², can supply 20 shower nozzle waters.

The vertical drinking water boiler of embodiment 2:2.1m/0.8m.Outer courage diameter 800mm, internal diameter 600mm, high 2100mm; The inner bag diameter is 400mm, and is high by 1,000mm.Outer courage inside and outside wall iron plate thickness δ=6mm, inner bag wall thickness δ=4mm.Water capacity 250Kg, the 20 minutes water time on the boiling water, 118 ℃ of vapor (steam) temperatures, evaporation capacity 50Kg/h, the thermal efficiency are 80.8%.Can be for 400 people drinking-water, steamed rice can drive heating area 300m ², can supply 10 shower nozzle waters.

Claims (6)

1, a kind of steam-water dual-purpose drinking water boiler includes the outer courage 4 of different structure, it is characterized in that it also has inner bag 3, sphere burner 7 and sealed combustion chamber 8.

2, drinking water boiler according to claim 1 is characterized in that inner bag 3 bottoms are flat.

3, drinking water boiler according to claim 1 is characterized in that equally distributed burner port is arranged on the sphere burner 7.

4, drinking water boiler according to claim 1 is characterized in that its burning coal gas and oil liquefied gas.

5, drinking water boiler according to claim 1 is characterized in that the air inlet 9.10.11 that is with plate is arranged on the combustion chamber.

6, drinking water boiler according to claim 1 is characterized in that can being welded with the some water pipes that communicate with courage 5 on the outer courage inwall.

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