CN2070426U

CN2070426U - Miniature hot water heating boiler

Info

Publication number: CN2070426U
Application number: CN 90209148
Authority: CN
Inventors: 胡金堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-22
Filing date: 1990-06-22
Publication date: 1991-01-30

Abstract

The utility model relates to a miniature hot water heating boiler which has a horizontal water pipe and has the advantages of no pressure and no pollution, and anthracite is mainly burnt. A body is composed of a boiler barrel, a gathering tank, a convection tube, a water screen tube, a middle shed tube and a branch tube. The utility model is matched with an elevated water tank, a temperature gauge and an over-temperature alarm device. Smoke gas in the utility model is divided into three return strokes, the part below the middle shed tube (wall) is the first return stroke which is a zone used for the heat release of fuels and the settlement of smoke dust, the second return stroke above the middle shed tube is a strengthening heat absorbing zone, and the smoke gas is discharged out of the utility model through the convection tube (the third return stroke). The utility model operates by natural ventilation, hot water is led into a circulating pump from the upper part of the boiler barrel, and the hot water returns into the utility model through the elevated water tank after heating.

Description

Small-sized hot-water heating boiler

The utility model relates to a kind of horizontal nothing and presses pollution-free anthracite to make the small-sized hot-water heating boiler of fuel.

General small size hot-water boiler all is a bearing operation, and the cost height, and smoke contamination is serious, again because of there being explosion danger also must accept the supervision of labour department, so bring certain degree of difficulty for hot-water boiler heating.

For addressing this problem, now pressure-bearing is changed into and do not have the operation of pressure, be about to circulating pump to the boiler setting-out, change in pot and drawing water, the hot water temperature still can keep 90 ℃, for preventing pump entry generating gasification under this temperature, the spy adorns an elevated tank in upper boiler, keep 5 meters hydrostatic column pressure head, change use bituminous coal as anthracite into, also adopt the interior sedimentation dedusting of stove can prevent the pollution of flue dust.Structurally by general pan shell type.The extreme misery tubular type changes horizontal water pipe into, can save steel about 1/3rd.And manufacturing process is simple, and cost is low to be perfectly safe reliably, is that the little user of heating below ten thousand square metres brings great convenience.

The purpose of this utility model is that a kind of both safety will be provided.Not only economic but also free of contamination horizontal small-sized water pipe hot-water boiler.

The purpose of this utility model is to realize like this.

Boiler body is made up of drum, collection case, convection tube, water screen tube etc., and supporting have an elevated tank, and thermometer and temperature alarming, combustion apparatus adopt fixed grate.Through three backhauls, heating surface is not established in the I backhaul basically in stove for hand firing, gravity-flow ventilation, flue gas, so that allow coal catch fire, fully emits heat, then enters and burns expansion chamber, to reach the purpose of smoke abatement and dust control.The II backhaul is to strengthen exchange heat (water absorption heat), canopy arm in water screen tube and the fin type is arranged here, it on the arm fin that is welded into little band steel, it can strengthen heat absorption and uniform flow flue gas, through turning through 180 degree the convective region that enters the left side, the cigarette temperature can be reduced to 200 ℃ to flue gas when flue gas is discharged body of heater again.

The structure of utility model is drawn by accompanying drawing.

Body equipment is by drum (1), down-comer (2), rear set box (5), about collect case (6), the right water screen tube (14), the middle canopy fin arms (3) of left side convection bank (16) and middle shielding pipe (4) etc. are formed, fire division wall (9,10) be to make coal after fire grate (11) is gone up burning, enter expansion chamber (8) to locate through turnover, as smoke abatement and dust control measure in the stove, on the front wall of furnace wall (7), having below has inspection opening (15) middle shielding pipe (4) and level to be 15 degree angles above the fire door (13), its length accounts for more than 95% of burner hearth, burner hearth is divided into two parts up and down, flue gas is divided into two backhauls of I II with partition wall (12).The 1st backhaul is a heat release zone, and the II backhaul is a reinforcement heat absorption district, and finned arm (3) is housed on the middle shielding pipe (4), and the III backhaul belongs to the convection heat transfer' heat-transfer by convection district of convection tube (16), and flue gas is discharged from afterbody.Water circulation system is hot water is received water circulating pump from hot-water boiler outlet (17) a inlet, after system's heating, get back to elevated tank (19) by return pipe (21), the water level of water tank is regulated by ball-cock assembly (20), for preventing the overtemperature gasification, thermometer and overtemperature alarm (18) are housed on drum top, water adopts dosing to handle in the pot, and medicine is directly added in the elevated tank (19).

The utility model is compared with the general capacity 600,000 kilocalorie hot-water boilers that wait, and the thermal efficiency can improve 5%, and steel can save 1/3rd, and can install Anywhere, bring great convenience to the user.

Claims

1. the body construction of small-sized hot-water heating boiler has and collects in case (6) water screen tube (14) convection tube (16) middle shielding pipe (4) canopy arm (3) down-comer (2) about drum (1) rear set box (5) and forms and it is characterized in that drum (1) is collected pipe support of case (6) composition through about down-comer (2) and rear set box (5), the right has water screen tube (14) left side that convection tube (16) is arranged, the centre has middle shielding pipe (4) and level to be 15 degree angles, lead to the preceding bottom of drum (1) from rear set box (5), its length is more than 95% of burner hearth, and middle canopy arm (3) is communicated with middle shielding pipe (4) with drum (1).

2. device according to claim 1 is characterized in that being equipped with on the middle shielding pipe (4) partition wall (12), has barricade (9,10) flue gas to enter expansion chamber (8) through turnover in I backhaul outlet.

3. according to claim 1,2 described devices is characterized in that the expansion chamber of first backhaul outlet and account for the middle shielding pipe (4) of burner hearth total length more than 95%, and middle canopy chip arm (3), and fin is welded into little band steel.