CN213454242U

CN213454242U - Environment-friendly energy-saving gas hot-blast stove

Info

Publication number: CN213454242U
Application number: CN202020879691.8U
Authority: CN
Inventors: 吴敏; 管建红
Original assignee: Fuyang Hangzhou Sida Machinery Co ltd
Current assignee: Fuyang Hangzhou Sida Machinery Co ltd
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2021-06-15
Anticipated expiration: 2030-05-23

Abstract

The utility model discloses an environmental protection and energy saving type gas hot-blast furnace, including main fan and wick, the top outer wall of main fan links up there is the air inlet system, and the tip of air inlet system is provided with outer wind channel, the bottom right side welding in outer wind channel has the frame. This environmental protection and energy saving type gas hot-blast furnace passes through the setting of air regulating pipe, can adjust the intake of main fan, make and suitably adjust according to the use needs, the air inlet spiral case gets into outer wind channel with the mode of whirl after that, can make fresh cold wind cool off the wick outer wall more evenly, avoid causing local overheat, the wick main part is makeed according to combustor flame size and length design by heat-resistant steel, peripheral heat accumulation piece is by the preparation of carbon steel sheet, the heat accumulation formula wick has guaranteed the temperature of combustion chamber furnace on the one hand, it is abundant to have guaranteed the burning, another conveniently makes the air inlet temperature more stable. The heat accumulating type furnace core is fixed in the air duct, the burner is arranged on a bottom plate in the heat accumulating type furnace core, and the bottom plate is provided with a rear heat-insulating layer, so that the first burner is prevented from being damaged due to overheating.

Description

Environment-friendly energy-saving gas hot-blast stove

Technical Field

The utility model relates to a gas hot-blast furnace technical field specifically is environmental protection and energy saving type gas hot-blast furnace.

Background

The hot blast stove as heat power machine is widely used in China in the end of the 20 th century 70 s, and has become an upgrading product of electric heat sources and traditional steam power heat sources in many industries. In the food drying industry, hot blast stoves are one of the main heat sources for dryers. And the environment-friendly energy-saving gas direct-fired furnace is used as a heat supply source, so that the environment is protected, and the heat efficiency can be improved.

At present, a heat source of a dryer in the market is converted into a natural gas direct-fired heat supply furnace at the present stage, but the natural gas is low in combustion efficiency due to the fact that a plurality of structures are unreasonably designed and can not be completely burned or potential safety hazards exist, and harmful gases such as carbon monoxide, aldehydes, phenols and benzenes are generated incidentally, and the exhaust emission exceeds the standard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an environmental protection and energy saving type gas hot-blast furnace to solve also all the transformation at present stage for the natural gas directly burns the heating furnace on the present market that proposes in the above-mentioned background art, but how much structural design unreasonably all burn unclean or have the potential safety hazard, lead to natural gas combustion efficiency low, produced some harmful gas such as carbon monoxide, aldehyde, phenols and benzenes by the way, tail gas emission exceeds standard problem.

In order to achieve the above object, the utility model provides a following technical scheme: environmental protection and energy saving type gas hot-blast furnace, including main fan and wick, the top outer wall of main fan links up has the air inlet system, and the tip of air inlet system is provided with outer wind channel, the welding of the bottom right side in outer wind channel has the frame, and the wick sets up in the outer wind channel inner wall middle part in outer wind channel, settle in the outer wind channel inner wall middle part of wick has the combustor, the right side outer wall in outer wind channel is provided with the flue.

Preferably, the air inlet system includes air inlet straight tube, air inlet return bend and air inlet spiral case, and the top outer wall of air inlet straight tube is fixed with the air inlet return bend, the right side outer wall of air inlet return bend is provided with the air inlet spiral case, the outer wall of air inlet return bend is arc column structure, and communicates each other between air inlet straight tube, air inlet return bend and the air inlet spiral case.

Preferably, the outer air duct comprises a shell, a first heat preservation layer, an inner wall of the outer air duct and an air outlet, the first heat preservation layer is bonded on the right side of the inner wall of the outer air duct of the shell, the inner wall of the outer air duct is arranged in the middle of the inner portion of the shell, and the air outlet is formed in the bottom end of the right side of the shell.

Preferably, the first heat preservation layer is closely attached to the periphery of the inner wall of the outer air duct of the shell, and the shell, the first heat preservation layer and the inner wall of the outer air duct are fixedly connected.

Preferably, the burner includes first burner and flame, and the inside of burner is provided with first burner, the top middle part of first burner has the flame, flame is the closed angle structure, and is fixed connection between first burner and the flame.

Preferably, the stove core includes stove core main part, heat accumulation piece, stove core infrabasal plate, second heat preservation and the outer bottom plate of stove core, and the outer wall right side of stove core main part links up has the heat accumulation piece, the outer wind channel inner wall bottom mounting of stove core main part has stove core infrabasal plate, and the bottom outer wall of stove core infrabasal plate is provided with the second heat preservation, the bottom outer wall parcel of second heat preservation has the stove core infrabasal plate.

Preferably, the furnace core inner bottom plate, the second heat preservation layer and the furnace core outer bottom plate are sequentially and tightly attached from top to bottom, and the heat storage sheets are symmetrically distributed about a vertical central axis of the furnace core main body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this environmental protection and energy saving type gas hot-blast furnace adjusts main fan intake through adjusting the tuber pipe, can suitably adjust according to the user demand, and the outer wind channel is got into with the mode of whirl to the air inlet spiral case after that, can make fresh cold wind cool off the stove core outer wall more evenly, avoids causing local overheat.

2. This environmental protection and energy saving type gas hot-blast furnace wick main part is by heat-resistant steel preparation according to combustor flame size and length design, and peripheral heat accumulation piece is by the preparation of carbon steel board, and the heat accumulation formula wick has guaranteed combustion chamber furnace's temperature on the one hand, has guaranteed that the burning is abundant, and another makes the air inlet temperature more stable that makes things convenient for. The heat accumulating type furnace core is fixed in the air duct, the burner is arranged on a bottom plate in the heat accumulating type furnace core, and the bottom plate is provided with a heat insulating layer with the thickness of 10cm, so that the first burner is prevented from being damaged due to overheating.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the furnace body of the present invention;

fig. 4 is a schematic view of the furnace core structure of the present invention.

In the figure: 1. a main fan; 2. an air inlet system; 201. an air inlet straight pipe; 202. an air inlet bent pipe; 203. an air inlet volute; 3. an outer air duct; 301. a housing; 302. a first insulating layer; 303. the inner wall of the outer air duct; 304. An air outlet; 4. a burner; 401. a first burner; 402. a flame; 5. a furnace core; 501. a core body; 502. a heat storage sheet; 503. a furnace core inner bottom plate; 504. a second insulating layer; 505. an outer bottom plate of the furnace core; 6. a flue; 7. a frame; 8. and (6) air adjusting pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the environment-friendly energy-saving gas hot blast stove comprises a main fan 1, an air inlet system 2, an air inlet straight pipe 201, an air inlet bent pipe 202, an air inlet volute 203, an outer air duct 3, a shell 301, a first heat preservation layer 302, an outer air duct inner wall 303, an air outlet 304, a combustor 4, a first combustor 401, flame 402, a stove core 5, a stove core main body 501, a heat accumulation sheet 502, a stove core inner bottom plate 503, a second heat preservation layer 504, a stove core outer bottom plate 505, a flue 6, a rack 7 and an air adjusting pipe 8, wherein the outer wall of the top end of the main fan 1 is connected with the air inlet system 2, the end part of the air inlet system 2 is provided with the outer air duct 3, the rack 7 is welded on the right side of the bottom end of the outer air duct 3, the stove core 5 is arranged in the middle part of the outer air duct inner wall of the outer air duct 3, the combustor 4 is arranged in the middle part of the outer air duct inner wall of the stove core, an air inlet bent pipe 202 is fixed on the outer wall of the top end of the air inlet straight pipe 201, an air inlet volute 203 is arranged on the outer wall of the right side of the air inlet bent pipe 202, the outer wall of the air inlet bent pipe 202 is of an arc-shaped structure, the air inlet straight pipe 201, the air inlet bent pipe 202 and the air inlet volute 203 are communicated with one another, the outer air duct 3 comprises a shell 301, a first heat preservation layer 302, an outer air duct inner wall 303 and an air outlet 304, the first heat preservation layer 302 is bonded on the right side of the outer air duct inner wall of the shell 301, the outer air duct inner wall 303 is arranged in the middle of the interior of the shell 301, the air outlet 304 is formed in the bottom end of the right side of the shell 301, the air inlet amount of the main fan 1 is adjusted through an air adjusting pipe 8, appropriate adjustment can be performed according to use requirements, then the;

the first heat preservation layer 302 is tightly attached to the periphery of the inner wall of the outer air duct of the shell 301, the first heat preservation layer 302 and the inner wall 303 of the outer air duct are fixedly connected, the burner 4 comprises a first burner 401 and a flame 402, the first burner 401 is arranged inside the burner 4, the flame 402 is arranged in the middle of the top end of the first burner 401 and is in a sharp-horn-shaped structure, the first burner 401 is fixedly connected with the flame 402, the furnace core 5 comprises a furnace core main body 501, a heat storage sheet 502, a furnace core inner bottom plate 503, a second heat preservation layer 504 and a furnace core outer bottom plate 505, the heat storage sheet 502 is connected to the right side of the outer wall of the furnace core main body 501, the furnace core inner bottom plate 503 is fixed to the bottom end of the inner wall of the outer air duct of the furnace core main body 501, the bottom end outer wall of the furnace core inner bottom plate 503 is provided with the second heat preservation layer 504, the furnace core inner bottom plate 503 wraps the furnace core outer wall of, The second heat preservation layer 504 and the outer bottom plate 505 of the furnace core are sequentially and tightly attached from top to bottom, the heat storage sheets 502 are symmetrically distributed about the vertical central axis of the furnace core main body 501, the furnace core main body 501 is made of heat-resistant steel and designed according to the size and the length of flame 402 of the burner 4, the peripheral heat storage sheets 502 are made of carbon steel plates, the heat storage furnace core 5 ensures the temperature of a hearth of a combustion chamber on the one hand, ensures full combustion, and ensures more stable inlet air temperature on the other hand. The heat accumulating type furnace core is fixed in the air duct, the burner 4 is arranged on a bottom plate 503 in the heat accumulating type furnace core, a heat insulating layer 504 with the thickness of 10cm is arranged on the bottom plate, the damage of the first burner 401 caused by overheating is avoided, the flue 6 is made of heat-resistant steel, the influence of the air pressure of the main fan 1 on a hearth can be reduced due to the downward design of the outlet of the flue 6, three smoke outlet square ports on the flue 6 are spliced with the furnace core 5, the size of the smoke outlet square ports is designed according to the size of the burner 4, the smoke outlet flow rate is ensured to be about 3-5m/s, so as to ensure the optimal combustion state, the invention modifies the circuit of the burner 4, changes the combustion fan of the burner 4 into a long blowing state, namely the combustion fan is always in the working state under the condition that the burner 4 is not powered off, the hearth can be cooled after the burner 4 is switched off, the burner 4 is prevented from being burnt down by hot air, the danger of using the gas furnace is reduced.

The working principle is as follows: for the environment-friendly energy-saving gas hot blast stove, firstly, fresh cold air is sucked by a main fan 1 from the outside and enters an outer air channel 3 of the hot blast stove through an air inlet system 2, meanwhile, gas is combusted in a stove core 5 through a burner 4, a small part of generated heat is transmitted to a heat storage sheet 502 through a stove core main body 501 to exchange heat with fresh cold air in the outer air channel 3, most of the heat enters a flue 6 from the stove core 5 in a high-temperature smoke mode, flows out of the flue 6, enters the outer air channel 3 to be mixed with the fresh cold air for cooling, and is blown out from an air outlet 304 to supply heat to a dryer, meanwhile, an air inlet quantity of the main fan 1 can be adjusted by an air adjusting pipe 8, the air inlet quantity can be properly adjusted according to use requirements, then an air inlet volute 203 enters the outer air channel 3 in a rotational flow mode, the fresh cold air can more uniformly cool the outer wall of the, in order to guarantee the safety of combustor 4 and production, the furnace core main part 501 is by heat resistant steel preparation according to combustor 4 flame 402 size and length design, and peripheral heat accumulation piece 502 is by carbon steel plate preparation, and heat accumulation formula furnace core 5 has guaranteed the temperature of combustion chamber furnace on the one hand, has guaranteed the burning fully, and another makes the air inlet temperature more stable conveniently. The heat accumulating type furnace core is fixed in the air channel, the burner 4 is arranged on a bottom plate 503 in the heat accumulating type furnace core, and the bottom plate is provided with a heat insulating layer 504 with the thickness of 10cm, so that the first burner 401 is prevented from being damaged due to overheating.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Environmental protection and energy saving type gas hot-blast furnace, including main fan (1) and wick (5), its characterized in that: the utility model discloses a stove, including main fan (1), air inlet system (2), and the tip of air inlet system (2) is provided with outer wind channel (3), the bottom right side welding of outer wind channel (3) has frame (7), and wick (5) set up in the outer wind channel inner wall middle part of outer wind channel (3), the arrangement of the outer wind channel inner wall middle part of wick (5) has combustor (4), the right side outer wall of outer wind channel (3) is provided with flue (6).

2. The environment-friendly energy-saving gas hot blast stove according to claim 1, characterized in that: the air inlet system (2) comprises an air inlet straight pipe (201), an air inlet bent pipe (202) and an air inlet volute (203), wherein the air inlet bent pipe (202) is fixed on the outer wall of the top end of the air inlet straight pipe (201), the outer wall of the right side of the air inlet bent pipe (202) is provided with the air inlet volute (203), the outer wall of the air inlet bent pipe (202) is of an arc-shaped structure, and the air inlet straight pipe (201), the air inlet bent pipe (202) and the air inlet volute (203) are mutually communicated.

3. The environment-friendly energy-saving gas hot blast stove according to claim 1, characterized in that: the outer air duct (3) comprises a shell (301), a first heat preservation layer (302), an outer air duct inner wall (303) and an air outlet (304), the first heat preservation layer (302) is bonded to the right side of the outer air duct inner wall of the shell (301), the outer air duct inner wall (303) is arranged in the middle of the inner portion of the shell (301), and the air outlet (304) is formed in the bottom end of the right side of the shell (301).

4. The environment-friendly energy-saving gas hot blast stove according to claim 3, characterized in that: first heat preservation (302) closely laminate around the outer wind channel inner wall of shell (301), and be fixed connection between shell (301), first heat preservation (302) and outer wind channel inner wall (303).

5. The environment-friendly energy-saving gas hot blast stove according to claim 1, characterized in that: the combustor (4) comprises a first combustor (401) and a flame (402), the first combustor (401) is arranged inside the combustor (4), the flame (402) is arranged in the middle of the top end of the first combustor (401), the flame (402) is of a pointed-angle-shaped structure, and the first combustor (401) is fixedly connected with the flame (402).

6. The environment-friendly energy-saving gas hot blast stove according to claim 1, characterized in that: the furnace core (5) comprises a furnace core main body (501), a heat storage sheet (502), a furnace core inner bottom plate (503), a second heat preservation layer (504) and a furnace core outer bottom plate (505), the outer wall right side of the furnace core main body (501) is connected with the heat storage sheet (502), the furnace core inner bottom plate (503) is fixed at the bottom end of the outer air channel inner wall of the furnace core main body (501), the second heat preservation layer (504) is arranged on the bottom outer wall of the furnace core inner bottom plate (503), and the furnace core inner bottom plate (503) is wrapped on the bottom outer wall of the second heat preservation layer (504).

7. The environment-friendly energy-saving gas hot blast stove according to claim 6, characterized in that: the furnace core inner bottom plate (503), the second heat insulation layer (504) and the furnace core outer bottom plate (505) are sequentially and tightly attached from top to bottom, and the heat storage sheets (502) are symmetrically distributed about the vertical central axis of the furnace core main body (501).