CN216592268U

CN216592268U - Firewood burning water heater

Info

Publication number: CN216592268U
Application number: CN202121003977.0U
Authority: CN
Inventors: 侯国山; 王平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2022-05-24
Anticipated expiration: 2031-05-08

Abstract

A firewood burning water heater mainly comprises a draught fan, an induced air pipe, a water tank shell, a water tank bottom, a door frame, a hearth, a heat exchange pipe, an ash discharge pipe, a fire adjusting plate, a fire adjusting valve and an ash bucket. The biomass fuel used in the utility model belongs to renewable energy sources, and is a product with zero carbon emission. The fuel adaptability is strong. The utility model can use wood blocks, wood segments, branches, straws, sawdust, leaves, biomass molding particles and the like as fuels, and has low fuel cost. The utility model has the advantages of high reliability, low price, energy saving, no pollution, long service life, safety, simple production process, large-scale industrial production and wide market prospect.

Description

Firewood burning water heater

Technical Field

The utility model relates to the field of biomass gasification combustion appliances, in particular to a firewood-burning water heater.

Background

The most commonly used water heaters in the current market are electric water heaters, gas water heaters, solar water heaters and heat pump water heaters, which have high manufacturing cost, large power consumption and high daily running cost; the gas water heater has higher manufacturing cost, great gas consumption and high daily operation cost; solar water heaters are expensive to manufacture, often limited by installation conditions, and are rarely used. No firewood-burning water heater is sold on the market.

Disclosure of Invention

The utility model aims to provide a firewood burning water heater which has the advantages of low manufacturing cost, low daily operation cost and smokeless burning and can use various wood blocks, firewood and biomass particles as fuel.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a firewood burning water heater, by draught fan, induced duct, water tank shell, the bottom of the water tank, door frame, furnace, heat exchange tube, ash pipe, firepower regulating plate, firepower governing valve, ash bucket, water level automatic control constitute characterized by: the hearth is characterized in that a space enclosed by a hearth door, a door annular plate, a door heat-insulating refractory material, a door frame annular plate, a hearth wall and the upper bottom of the hearth is arranged in the water tank, and the lower end of the hearth wall is welded with the bottom of the water tank; the furnace cavity is enclosed by the door, the door annular plate, the door heat-insulating refractory material, the door frame annular plate, the furnace cavity wall, the upper bottom of the furnace cavity, the bottom of the water tank, the bottom heat-insulating refractory material, the ash discharging pipe, the grate and the air inlet ring; the induced draft fan is communicated with the hearth through an induced draft pipe, the upper bottom of the hearth, the heat exchange pipe and the lower bottom of the hearth; the air inlet valve is communicated with the hearth through an air inlet pipe, an air inlet ring and a lower air inlet hole; the air inlet valve is communicated with the hearth through an air inlet pipe, an air inlet ring and an inclined air inlet hole; an ash discharge pipe is fixedly arranged on the water tank bottom, a fire grate is arranged at the upper end of the ash discharge pipe, a fire adjusting plate is arranged at the lower end of the ash discharge pipe, and the hearth is communicated with the ash discharge pipe through gaps among the fire grate, the ash discharge pipe, the fire adjusting plate and the ash discharge pipe.

The heat exchange tube is one or more.

Two circles of small holes are arranged on the air inlet ring, the lower circle of small holes are lower air inlet holes, and the connecting line of the center of the lower air inlet holes and the center of the lower air inlet ring is parallel to the horizontal plane; above-mentioned round aperture is oblique fresh air inlet, and the line at oblique fresh air inlet center and lower air inlet circle center is greater than 30 degrees with the contained angle of horizontal plane, is less than 90 degrees, if the line at oblique fresh air inlet center and lower air inlet circle center is a with the contained angle of horizontal plane, then has: 30 degrees < a < 90 degrees.

Compared with the prior art, the utility model has the following advantages:

1. the biomass fuel used in the utility model belongs to renewable energy sources, and is a product with zero carbon emission.

2. The utility model has the greatest advantages of low daily operation fuel cost and low manufacturing cost.

3. The utility model has the advantages of long service life, no smoke in the room, movable property and adjustable firepower.

4. The utility model has simple production process and good practical effect. Can be used for large-scale industrial production and has wide market prospect.

Drawings

Fig. 1 is a schematic cross-sectional view of a firewood-fired water heater.

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1.

The utility model is further illustrated with reference to the following figures and examples:

in the figure, 1, legs, 2, a water tank bottom, 3, an air inlet ring, 4, a lower air inlet hole, 5, an inclined air inlet hole, 6, a door frame annular plate, 7, a door, 8, a door heat insulation fireproof material, 9, a door annular plate, 10, a hearth upper bottom, 11, a water tank shell, 12, a heat exchange pipe, 13, a water level line, 14, an induced draft fan, 15, an induced draft pipe, 16, a water level automatic controller, 17, a tap water pipe, 18, a cold water outlet pipe of the water level automatic controller, 19, a hot water outlet pipe, 20, a hearth wall, 21, an air inlet pipe, 22, an air valve, 23, a grate, 24, an ash outlet pipe, 25, a fire adjusting plate fixing angle, 26, an ash hopper, 27, a fire adjusting plate, 28, a fire adjusting rod, 29, an ash hopper pull rod, 30, an ash hopper fixing angle, 31, a connecting rod, 32, a water tank cover and 33, bottom heat insulation fireproof material.

Detailed Description

Fig. 1 and 2 together describe the structure form of a firewood burning water heater.

A firewood burning water heater comprises a draught fan, an induced draft pipe, a water tank shell, a water tank bottom, a door frame, a hearth, a heat exchange pipe, an ash discharge pipe, a fire adjusting plate, an air valve and an ash bucket, wherein legs 1 and the water tank bottom 2 are fixedly arranged together, and a bottom heat insulation refractory material 33 is arranged on the water tank bottom 2 in the hearth; the lower end of the hearth wall 20 is welded with the water tank bottom 2, the upper end of the hearth wall 20 is welded with the hearth upper bottom 10, and the door 7 is hinged with the doorframe annular plate 6; one end of the door frame annular plate 6 is welded with the hearth wall 20, and the other end of the door frame annular plate 6 is welded with the water tank shell 11; the water tank bottom 2, the water tank shell 11 and the water tank cover 32 form a water tank together; an induced draft fan 14 is fixedly arranged on the water tank cover 32, an automatic water level controller 16 is fixedly arranged on the water tank cover 32, a tap water pipe 17 is communicated with the automatic water level controller 16, and a cold water outlet pipe 18 of the automatic water level controller is communicated with the lower part of the water tank; a space enclosed by a door 7, a door annular plate 9, a door heat-insulating fireproof material 8, a door frame annular plate 6, a hearth wall 20 and a hearth upper bottom 10 is arranged in the water tank, and the lower end of the hearth wall is welded with the water tank bottom; the door 7, the door annular plate 9, the door heat-insulating fireproof material 8, the door frame annular plate 6, the hearth wall 20, the hearth upper bottom 10, the water tank bottom 2, the bottom heat-insulating fireproof material 33, the ash discharging pipe 24, the grate 23 and the air inlet ring 3 jointly enclose a hearth; therefore, the heat in the hearth can be smoothly transferred to the water tank through the hearth; the induced draft fan 14 is communicated with the hearth through an induced draft pipe 15, the heat exchange pipe 12 and the upper hearth bottom 10; the heat exchange tube 12 of the utility model is thicker and longer than the induced draft tube 15, so that the flowing speed of the high-temperature waste smoke in the heat exchange tube 12 is very slow, the contact time of the high-temperature waste smoke and the heat exchange tube 12 is longer, and the heat exchange tube 12 has better heat exchange effect, and is actually a smoke exhaust tube of the high-temperature waste smoke; the air inlet valve 22 is communicated with the hearth through an air inlet pipe 21, an air inlet ring 3 and a lower air inlet hole 4; the air inlet valve 22 is communicated with the hearth through an air inlet pipe 21, an air inlet ring 3 and an inclined air inlet hole 5; an ash discharge pipe 24 is fixedly arranged on the water tank bottom 2, a grate 23 is arranged at the upper end of the ash discharge pipe 24, a fire adjusting plate fixing angle 25 is arranged at the lower end of the ash discharge pipe 24, a fire adjusting plate 27 is fixedly arranged with a fire adjusting rod 28, the fire adjusting plate 27 is arranged on the fire adjusting plate fixing angle 25, and the fire adjusting plate 27 can move back and forth on the fire adjusting plate fixing angle 25; the hearth is communicated with the atmosphere through a fire grate 23, an ash discharge pipe 24 and a fire adjusting plate 27; an ash bucket 26 is arranged below the ash discharging pipe 24, an ash bucket pull rod 29 is fixedly arranged on the ash bucket 26, the ash bucket 26 is placed on an ash bucket fixing angle 30, the ash bucket 26 can move back and forth on the ash bucket fixing angle 30, and the ash bucket fixing angle 30 is fixedly arranged with the water tank bottom 2 through a plurality of connecting rods 31.

The heat exchange tube 12 is one or more.

The air inlet ring 3 is provided with two circles of small holes, the lower circle of small holes are lower air inlet holes 4, and the connecting line of the centers of the lower air inlet holes and the lower air inlet ring is parallel to the horizontal plane; the round aperture of the upper side is an oblique air inlet 5, the included angle between the line of the center of the oblique air inlet 5 and the center of the air inlet ring 3 and the horizontal plane is more than 30 degrees and less than 90 degrees, if the included angle between the line of the center of the oblique air inlet 5 and the center of the air inlet ring 3 and the horizontal plane is a, the angle is: a is more than 30 and less than 90, and the air supply direction of the inclined air inlet holes 5 is on the extension line of the connecting line of the centers of the inclined air inlet holes 5 and the center of the lower air inlet ring 3.

When the negative pressure type negative pressure furnace is used, the door 7 is opened to fill fuel into the furnace chamber and ignite, the firepower adjusting plate 27 is opened forwards to a proper position, the air valve 22 is adjusted to a proper position, the induced draft fan 14 is opened, the door 7 is closed tightly, and the furnace chamber is changed into negative pressure. Under the action of pressure difference, air is rapidly sprayed to the bottom of the hearth from the air valve 22, the air inlet pipe 21, the air inlet ring 3 and the plurality of lower air inlet holes 4, and fuel at the bottom of the hearth is greatly gasified; the utility model adopts a transverse air inlet mode for the lower air inlet hole 4 of the air inlet ring 3, which can ensure that the air inlet quantity is large and uniform, the fuel gasification quantity is large, and the air inlet holes can not be blocked at any time. Under the action of pressure difference, air is rapidly sprayed to the outer ring of the upper part of the hearth from the air valve 22, the air inlet pipe 21, the air inlet ring 3 and the plurality of inclined air inlet holes 5 in a circle, and a circle of air curtain is formed from the inclined air inlet holes 5 to the outer ring of the upper hearth, so that all combustible gas contacting the air curtain can be rapidly combusted, and a large amount of heat is emitted. Under the action of pressure difference, air rapidly enters a hearth from a gap between the firepower adjusting plate 27 and the ash discharging pipe 24, the ash discharging pipe 24 and the grate 23 to participate in combustion, the hearth is heated, and high-temperature waste smoke is discharged out of the hearth through the heat exchange pipe 12, the induced draft pipe 15 and the induced draft fan 14. The closing degree of the air valve 22 is adjusted, the gap between the firepower adjusting plate 27 and the ash discharging pipe 24 is adjusted, the air intake of the hearth can be adjusted, thereby controlling the gasification quantity of the fuel of the hearth and controlling the firepower of the hearth. The air valve 22 is closed, the gap between the firepower adjusting plate 27 and the ash discharging pipe 24 is closed, the induced draft fan 14 is closed, the furnace fuel is completely isolated from the air, and the combustion of the furnace can be completely stopped.

The utility model can carry out heat preservation treatment on the periphery of the glass tube according to the conventional method.

Claims

1. The utility model provides a firewood burning water heater, by draught fan, induced duct, water tank shell, the bottom of the water tank, door frame, furnace, heat exchange tube, ash pipe, firepower regulating plate, firepower governing valve, ash bucket, water level automatic control constitute characterized by: the hearth is characterized in that a space enclosed by a hearth door, a door annular plate, a door heat-insulating refractory material, a door frame annular plate, a hearth wall and the upper bottom of the hearth is arranged in the water tank, and the lower end of the hearth wall is welded with the bottom of the water tank; the furnace cavity is enclosed by the door, the door annular plate, the door heat-insulating refractory material, the door frame annular plate, the furnace cavity wall, the upper bottom of the furnace cavity, the bottom of the water tank, the bottom heat-insulating refractory material, the ash discharging pipe, the grate and the air inlet ring; the induced draft fan is communicated with the hearth through an induced draft pipe, the upper bottom of the hearth, the heat exchange pipe and the lower bottom of the hearth; the air inlet valve is communicated with the hearth through an air inlet pipe, an air inlet ring and a lower air inlet hole; the air inlet valve is communicated with the hearth through an air inlet pipe, an air inlet ring and an inclined air inlet hole; an ash discharging pipe is fixedly arranged on the water tank bottom, a fire grate is arranged at the upper end of the ash discharging pipe, a fire adjusting plate is arranged at the lower end of the ash discharging pipe, and the hearth is communicated with the ash discharging pipe through gaps among the fire grate, the ash discharging pipe, the fire adjusting plate and the ash discharging pipe.

2. The firewood burning water heater as set forth in claim 1, characterized in that: the heat exchange tube is one or more.

3. The firewood burning water heater as claimed in claim 1, characterized in that: two circles of small holes are arranged on the air inlet ring, the lower circle of small holes are lower air inlet holes, and the connecting line of the center of the lower air inlet holes and the center of the lower air inlet ring is parallel to the horizontal plane; above-mentioned round aperture is oblique fresh air inlet, and the line at oblique fresh air inlet center and lower air inlet circle center is greater than 30 degrees with the contained angle of horizontal plane, is less than 90 degrees, if the line at oblique fresh air inlet center and lower air inlet circle center is a with the contained angle of horizontal plane, then has: 30 degrees < a < 90 degrees.