CN2145956Y

CN2145956Y - Verticle 3-return boiler

Info

Publication number: CN2145956Y
Application number: CN 92238768
Authority: CN
Inventors: 张治安
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-27
Filing date: 1992-10-27
Publication date: 1993-11-10
Anticipated expiration: 2002-10-27

Abstract

The utility model relates to a verticle three-return boiler, comprising a ring-shaped cylinder body, an inner ring-shaped furnace, a combustion-chamber, chimneys, inlet pipes, and outlet pipes. The verticle three-return boiler is characterized in that the structure of the verticle three-return boiler makes fuel gas run three returns inside the boiler and then be blowed off; a secondary air device and a flue dust abating device are arranged in the boiler. The utility model has the advantages of small size, large heat transferring area, long flow path of fuel gas inside the boiler, high thermal efficiency, conservation of fuel, and low pollution. The utility model can be used as a multipurpose boiler for drinking tea, heating and bathing, and can be widely used in the offices, armies, enterprises and institutions, households, etc.

Description

Verticle 3-return boiler

The utility model belongs to water heater.

Existing vertical boiler is generally the cylindrical shell and the inner bag of a cylinder cartridge type, and the bottom is a burner hearth, and top connects chimney and constitutes.The boiler thermal output of this kind structure is low, and is seriously polluted.For overcoming the deficiency of this boiler, the CN2090498U Chinese patent has proposed " vertical water screen tube three-purpose cooker stove ", and this boiler has certain effect to the raising thermal efficiency, minimizing pollution.Though be provided with header tank as crown in this boiler, flue gas is risen certain inhibition, because flue dust stroke in stove falls short of, can not make the abundant sedimentation of flue dust, and smoke contamination is still arranged.Be that its heat transfer time falls short of, and makes the thermal efficiency of stove still not high enough because combustion gas stroke in stove is shorter again.

The purpose of this utility model provide a kind of simple in structure, volume is little, makes combustion gas long flow path in stove, thermal efficiency height, oligosaprobic vertical three-pass boiler.

The utility model is achieved in that vertical three-pass boiler is by circular cylinder, interior annular courage, the combustion chamber, chimney and water inlet pipe and outlet pipe constitute, the gap that it is characterized in that circular cylinder and interior annular courage is divided into Room 1 and Room 2 by plate washer, Room 1 and top, Room 2 are communicated with, and Room 2 are communicated with ring bottom in the interior annular courage, and ring top is communicated with chimney in the interior annular courage.

1 chamber cross-section of above-mentioned boiler is long-pending long-pending greater than 2 chamber cross-sections, at the middle part of Room 1 two air-intake devices is set, and the bottom at the ring place of communicating is provided with the device of removing flue dust in Room 2 and interior annular courage.

Specifically explain the utility model below in conjunction with drawings and Examples.

Fig. 1 is the basic structure schematic diagram of vertical three-pass boiler.

Fig. 2 is the A-A cutaway view of Fig. 1.

Among the figure, 1 is circular cylinder, and 2 is two to blow into wind apparatus, and 3 is

Room

1, and 4 is water inlet pipe, and 5 is the combustion chamber, and 6 for removing the flue apparatus for ash, and 7 is outlet pipe, and 8 is interior annular courage, and 9 is

Room

2, and 10 is chimney, and 11 is communicating pipe, and 12 is plate washer.

Interior annular courage 8 is positioned among the circular cylinder 1, between circular cylinder and the interior annular courage by being communicated with communicating pipe 11, water in circular cylinder and the interior annular courage is flowed mutually, the gap of circular cylinder and interior annular courage is divided into Room 31 and Room 92 by plate washer 12, Room 31 and 9 tops, Room 2 are communicated with, the interior ring of Room 92 and interior annular courage 8 bottoms is communicated with, and ring top is communicated with chimney 10 in the interior annular courage 8, and the bottom of circular cylinder 1 is provided with water inlet pipe 4 and the middle part is provided with outlet pipe 7.Cold water enters boiler by water inlet pipe 4, flows outlet pipe 7 control hot water emissions mutually by the water that makes circular cylinder and interior annular courage communicating pipe.

According to above structure, the fuel high-temperature fuel gas that 5 internal combustion form in the combustion chamber enters Room 31, and the interconnecting part by Room 31 and 9 tops, Room 2 enters Room 92 then.The interior ring arrival chimney 10 of annular courage 8 is discharged from entering by 9 bottoms, Room 2 again.In this process, the interior ring of annular courage 8 formed three backhauls in combustion gas arrived by Room 93,2, Room 1, and the stroke of combustion gas in stove greatly prolonged, and had promptly prolonged the heat transfer time of combustion gas to water.Simultaneously, combustion gas is by three backhauls the time, make heating surface be almost the internal ring wall surface of full annular cylindrical shell 1 and the whole external annulus and the internal ring wall surface of interior annular courage, heating surface area is greatly increased, that is to say that vertical three-pass boiler had both prolonged the heat transfer time, greatly increased heating surface area again, made the thermal efficiency that significant raising arranged.

Pass through smoothly for making the combustion gas of the utility model boiler follow three backhauls, it is long-pending greater than Room 2 to be designed to 1 chamber cross-section.Room 1 directly is communicated with the combustion chamber, when combustion gas enters Room 2 by Room 1, its heat is constantly passed to wall and then water is heated, and the gas-flow temperature constantly descends, volume constantly dwindles, 1 chamber cross-section is long-pending greater than Room 2, fuel gas flow just more smooth and easy (present embodiment is that the ratio that 1 chamber cross-section is long-pending and 2 chamber cross-sections are long-pending equals 10:8).

For just the utility model is more perfect, be provided with the secondary air device 2 that to control in the middle part of Room 31, because fuel is when combustion chambers burn, the high-temperature fuel gas that forms also is being mingled with the not cigarette ash of combustion of part, be because the oxygen deficiency again, also has the part imflammable gas, as carbon monoxide etc., if burn incompletely, they are discharged from outside the stove, flue dust and toxic gas are entered cause environmental pollution in the atmosphere, be provided with the secondary air device at the middle part of Room 31, cover suitable oxygen, make combustible gas that high-temperature fuel gas is mingled with and the flue dust that in combustion process, is reduced run into the oxygen that covers after, can fully burn.Just formed the combustion chamber on the top of Room 31 like this, fuel is fully burned, thereby has improved the thermal efficiency of the utility model boiler, can realize the purpose of smoke abatement and dust control again, because of fuel is able to the heat energy that completing combustion has made full use of burning, can save a large amount of fuel.

Because the burning chamber on 3 tops, Room 1 makes temperature still very high, it is except the wall surface that heats Room 31, it also heats the chimney 10 that passes

Room

1 and 2 Room passages, thereby more having increased the chimney draft makes the combustion gas of Room 31 enter Room 92 smoothly through burning chamber, interior ring of annular courage 8 discharges out of the furnace by chimney in entering bottom it again.When combustion gas enters Room 92, its direction of motion is downward, add the effect of gravity, make communicate with ring in the interior annular courage 8 in Room 2 bottom at place of the ash fall of carrying secretly in the combustion gas, discharge out of the furnace by the flue apparatus for ash that removes that is located at the there, thereby what discharge by chimney mainly is waste gas after burning, has greatly reduced the pollution of harmful gas and flue dust.

Remove the flue apparatus for ash and be the bottom of in Room 92 and interior annular courage 8, encircling the place of communicating and establish a funnel-form circular hole, on have diameter to let out the heavy ball in grey hole greater than circle.Heavy ball is subjected to the effect of gravity, makes circular hole blocked.When long-pending certain dust is arranged after, by letting out grey hole heavy ball is opened, dust is fallen, behind the dust that fallen heavy ball is returned to original position, block and let out grey hole.

Just produced simple in structurely according to above narration, volume is little, and heat transfer area is big, makes combustion gas long flow path in stove, thermal efficiency height, and fuel saving pollutes extremely low vertical three-pass boiler.

Boiler of the present utility model is the normal pressure plain cylindrical furnace, and suitably control water inlet and water outlet can be used as tea, warm, bath multipurpose boiler, therefore, can be widely used in office, army, enterprises and institutions and home-use.

Claims

1, a kind of boiler, by circular cylinder, interior annular courage, the combustion chamber, chimney and water inlet pipe and outlet pipe constitute, and it is characterized in that the gap of circular cylinder and interior annular courage is divided into Room 1 and Room 2 by plate washer, and Room 1 and top, Room 2 are communicated with, Room 2 are communicated with the interior ring bottom of interior annular courage, and the interior ring top of interior annular courage is communicated with chimney.

2, boiler as claimed in claim 1 is characterized in that 1 chamber cross-section is long-pending long-pending greater than 2 chamber cross-sections.

3, boiler according to claim 1 is characterized in that being provided with the secondary air device at the middle part of Room 1.

4, boiler according to claim 1 is characterized in that the bottom at the ring place of communicating in Room 2 and interior annular courage is provided with the device of removing flue dust.