CN210624580U

CN210624580U - Hot air furnace

Info

Publication number: CN210624580U
Application number: CN201921709905.0U
Authority: CN
Inventors: 曾红波
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-05-26
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a warm air furnace, which comprises an inlet pipe, a furnace body, a vibrating rod, an ash receiving drawer, a smoke exhaust machine, a smoke pipeline, a water tank, a warm air pipeline and a fan heater, wherein the furnace body comprises a furnace body shell, a hearth and a fireproof heat-insulating material, the lower part of the hearth is a furnace bottom plate, the furnace bottom plate is connected with the vibrating rod, and the ash receiving drawer is arranged below the furnace bottom plate; a heat exchange tube is arranged in the upper furnace body, and the heat exchange tube sequentially penetrates through the partition plate and the top of the furnace body shell from bottom to top to communicate the hearth with an upstream flue gas pipeline; one side of the upper furnace body shell is communicated with a heating pipeline, and the other side of the upper furnace body shell is provided with a cold air inlet for allowing cold air to enter the warm air furnace; two ends of the upstream flue gas pipeline are respectively connected with the heat exchange tube and one end of a water tank heating tube in the water tank, and two ends of the downstream flue gas pipeline are respectively connected with the other end of the water tank heating tube and the smoke extractor. The utility model can absorb the heat of the flue gas pipeline for many times, and the heat efficiency can be improved to 90%; and the adding of the primary fuel can keep the combustion time long.

Description

Hot air furnace

Technical Field

The utility model belongs to the technical field of the kitchen range, concretely relates to warm braw stove.

Background

In winter, under the influence of local greenhouse effect, rural areas are often colder than cities, are limited by backward economic conditions and dispersed living environments, and are difficult to carry out overall heating arrangement. At present, heating modes in rural areas are various, natural gas, liquefied gas or various electric heaters are used, and more traditional heating modes are also provided, but the heating modes are limited to objective economic conditions, and most rural areas are heated by traditional coal or firewood. The heating stove used in the current rural area generally has the following problems: 1. the heat efficiency is low, the common heat efficiency is lower than 50%, and due to the simple structure, much heat is directly discharged to the outdoor by the smoke exhaust pipe; 2. the heating speed is slow, the heating area is limited, the air is heated by natural convection of common firewood stoves, the temperature of the stove body is very high, and the heat propagation speed is very slow; 3. the traditional firewood stove has simple structure, and a part of smoke can not be discharged outdoors, so that indoor air is polluted and the stove is not safe; 4. the traditional firewood stove needs to be added with fuel frequently, and is relatively troublesome to use.

Patent document CN201410814715 discloses a biomass energy-saving steam heating stove, which comprises: the device comprises a burner, an ignition port, a gasification fan channel, a primary air inlet, a primary W flame fire gathering cover, a secondary air inlet, a secondary W flame fire gathering cover, a feed inlet, an oven, a reactor, a gasifier, an air preheater, a tar separator, a biomass gas outlet, a disk thermometer, a water temperature, a water inlet, a water tank, a cold water valve, a heat preservation layer, a hot water pipe, a hot water boiling valve, a steam port, a kitchen cabinet, a chimney, a push-pull type furnace bridge, a drawer type ash bin, a steam instrument and a foot rest wheel. However, the heating stove needs to be frequently added with fuel, and is relatively troublesome to use.

Therefore, a new warm air furnace needs to be designed.

Disclosure of Invention

The utility model aims to provide a warm air furnace to solve the problem of low thermal efficiency of the current heating furnace used in rural areas in the background art; the heating speed is slow, and the heating area is limited; and the smoke is generated indoors, thus being neither sanitary nor safe; the traditional firewood stove needs to be added with fuel frequently, and the use is troublesome.

In order to achieve the purpose, the utility model provides a warm air furnace, the warm air furnace comprises an inlet pipe, a furnace body, a vibrating rod, an ash receiving drawer, a smoke extractor, a smoke pipeline, a water tank, a warm air pipeline and a warm air blower, the furnace body comprises a furnace body shell wrapped at the outermost side, a furnace chamber arranged at the lower part and positioned at the innermost side, and a fireproof heat insulation material filled between the furnace chamber and the furnace body shell at the lower part, the side of the furnace chamber is provided with a feed inlet, the feed inlet is communicated with the inlet pipe which extends obliquely upwards to the outside of the furnace body, the lower part of the furnace chamber is provided with a movable furnace bottom plate, the furnace bottom plate is provided with a ventilation hole, the furnace bottom plate is connected with the vibrating; the upper furnace body is hermetically surrounded by the furnace body shell, the upper furnace body and the lower furnace body are completely separated by the partition plate, a heat exchange tube is arranged in the upper furnace body, and the heat exchange tube sequentially penetrates through the partition plate and the top of the furnace body shell from bottom to top to communicate the hearth with the flue gas pipeline; one side of the upper furnace body shell is communicated with a heating pipeline, and the other side of the upper furnace body shell is provided with a cold air inlet for allowing cold air to enter the warm air furnace; the smoke pipeline comprises an upstream smoke pipeline and a downstream smoke pipeline, one end of the upstream smoke pipeline is connected with the heat exchange tube, the other end of the upstream smoke pipeline is communicated with one end of the water tank heating tube in the water tank, one end of the downstream smoke pipeline is communicated with the other end of the water tank heating tube, and the other end of the downstream smoke pipeline is connected with the smoke extractor; the cold air is preheated by a flue gas pipeline at a cold air inlet before entering the upper furnace body, then is converted into hot air through heat exchange of a heat exchange pipe in the upper furnace body, and finally is heated by a heating pipeline and a fan heater; hot flue gas enters the water tank heating pipe along the flue gas pipeline, and exchanges heat with water in the water tank through the water tank heating pipe, so that the water tank obtains hot water.

In a specific embodiment, a bracket is further arranged between the furnace bottom plate and the vibrating spear, and the furnace bottom plate is connected with the vibrating spear through the bracket.

In a specific implementation mode, the front face of the hearth is provided with a fire hole for ignition, the fire hole is provided with a fire hole cover, the fire hole cover is further provided with a fire observation window, and the fire observation window is made of refractory glass.

In a specific implementation mode, an included angle of 30-45 degrees is formed between the feeding pipe and the vertical direction of the hearth.

In a specific implementation mode, the left side and the right side of the hearth are respectively provided with a feeding pipe, and the feeding pipes are respectively provided with a feeding pipe cover plate.

In a specific embodiment, a timer for controlling the vibration of the vibration rod is connected to the vibration rod.

In a specific embodiment, the water tank heating pipe is arranged at the bottom of the water tank, and the water tank heating pipe are both made of 304 stainless steel.

In a specific embodiment, the water tank is also provided with an automatic water inlet valve or a manual water filling port; the water tank is also provided with a water outlet valve, a bottom water valve and a water outlet booster pump.

In a particular embodiment, the mid-section of the upstream flue gas duct is also disposed around the cold air inlet to heat cold air entering the furnace, and the mid-section of the downstream flue gas duct is also disposed around the cold air inlet to heat cold air entering the furnace.

In a specific embodiment, the inner wall of the heat exchange tube is provided with a heat receiving fin, and the outer wall of the heat exchange tube is provided with a heat radiating fin.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses an absorb flue gas pipeline heat many times, with flue gas pipeline temperature drop to being close the room temperature, the thermal efficiency can improve to 90%.

The utility model discloses an accelerate air cycle heating, the heating installation temperature can reach more than 80 degrees, can improve indoor temperature rapidly, heating area 100 ~ 400 square meters.

The utility model discloses a mode of extraction flue gas makes the interior negative pressure that forms of furnace, and the furnace body is totally leakproof cigarette, and the flue gas is whole to be arranged outdoor, very safety.

The utility model can continuously burn for 4 hours by adding primary fuel, and is very convenient to use.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

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

FIG. 2 is a schematic view of a rear angle of an embodiment of the present invention;

fig. 3 is a schematic partial cross-sectional view of an embodiment of the present invention;

wherein, 1, a feeding pipe; 2. a furnace body; 3. a vibration rod; 4. a dust collecting drawer; 5. a smoke extractor; 6. a flue gas duct; 7. a water tank; 8. a heating pipeline; 9. a warm air blower; 11. a feed tube cover plate; 21. a furnace body shell; 22. a hearth; 23. a furnace door; 24. a furnace floor; 25. a partition plate; 26. a heat exchange pipe; 31. a support; 71. a water tank heating pipe; 211. a cold air inlet; 221. a feed inlet; 222. a furnace mouth; 231. a fire observation window; 241. a vent hole; 261. a heat receiving sheet; 262. and a heat sink.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Example 1

The utility model provides a pair of warm air furnace, warm air furnace includes inlet pipe 1, furnace body 2, vibrting spear 3, connects grey drawer 4, smoke extractor 5, flue gas pipeline 6, water tank 7, heating pipeline 8 and heater 9, furnace body 2 is including wrapping up in the furnace body shell 21 of outside and setting up in the lower part and being in the furnace 22 of innermost side, still including filling the fire-resistant insulation material between furnace 22 and the furnace body shell 21 of lower part, furnace 22 side is provided with feed inlet 221, feed inlet 221 communicates the inlet pipe 1 that extends outside the furnace body in the slant, the furnace lower part is provided with the furnace floor 24 that can move about, be provided with ventilation hole 241 on the furnace floor 24, furnace floor 24 links to each other with vibrting spear 3, furnace floor 24 below is provided with connects grey drawer 4; the upper furnace body is hermetically surrounded by a furnace body shell 21, the upper furnace body and the lower furnace body are completely separated by a partition plate 25, a heat exchange tube 26 is arranged in the upper furnace body, and the heat exchange tube 26 sequentially penetrates through the partition plate 25 and the top of the furnace body shell 21 from bottom to top to communicate the hearth 22 with the flue gas pipeline 6; one side of the upper furnace body shell is communicated with a heating pipeline 8, and the other side of the upper furnace body shell is provided with a cold air inlet 211 for allowing cold air to enter the warm air furnace; the smoke pipeline 6 comprises an upstream smoke pipeline and a downstream smoke pipeline, one end of the upstream smoke pipeline is connected with the heat exchange tube 26, the other end of the upstream smoke pipeline is communicated with one end of a water tank heating tube 71 in the water tank 7, one end of the downstream smoke pipeline is communicated with the other end of the water tank heating tube 71, and the other end of the downstream smoke pipeline is connected with the smoke extractor 5; the cold air is preheated by the flue gas pipeline 6 at the cold air inlet 211 before entering the upper furnace body, then is changed into hot air through the heat exchange of the heat exchange pipe 26 in the upper furnace body, and finally is heated by the heating pipeline 8 and the heating fan 9; the hot flue gas enters the water tank heating pipe 71 along the flue gas duct 6, and exchanges heat with water in the water tank 7 through the water tank heating pipe 71, so that the water tank 7 obtains hot water.

The utility model discloses a with flue gas pipeline at cold wind import and the design of the heat transfer of cooling down many times of water tank, make flue gas pipeline temperature drop to room temperature by high temperature, improve nearly 30 ℃ with heating installation temperature simultaneously, the thermal efficiency improves to 90%, environmental protection and energy saving. The hearth is made of steel, the fireproof heat-insulating material filled between the hearth and the furnace body shell adopts glass fiber, the flue gas pipeline adopts an aluminum corrugated hose,

the utility model discloses an accelerate air cycle heating, the heating installation temperature can reach more than 80 ℃, can improve indoor temperature rapidly, heating area 100 ~ 400 square meters. The utility model discloses the fuel that is suitable for has firewood, charcoal and coal.

The utility model discloses a mode of extraction flue gas makes the interior negative pressure that forms of furnace, and the furnace body is totally leakproof cigarette, and the flue gas is whole to be arranged outdoor, very safety. When the smoke extractor works, the pressure in the hearth and the pressure in the feeding pipe are lower than the atmospheric pressure, primary fresh air enters the hearth from the ventilating hole of the hearth plate, secondary fresh air enters the hearth for supporting combustion through the gap of the cover plate of the feeding port and the gap of the cover plate of the furnace port, combustion is sufficient, basically no smoke exists, and the condition that waste gas does not leak is ensured. The utility model discloses a power maximum power is 120 w.

In a specific embodiment, a bracket 31 is further disposed between the furnace bottom plate 24 and the vibration rod 3, and the furnace bottom plate 24 is connected to the vibration rod 3 through the bracket 31. The bracket 31 is also provided with a vent hole. The support can prevent the vibrating spear from directly contacting high temperature.

In a specific embodiment, a fire hole 222 for ignition is arranged on the front surface of the hearth 22, the fire hole 222 is provided with a fire door 23, a fire observation window 231 is further arranged on the fire door 23, and the fire observation window 231 is made of refractory glass. The refractory glass can resist the high temperature of 800 ℃.

In a specific embodiment, the feeding pipe 1 and the hearth 22 form an included angle of 30-45 degrees in the vertical direction.

In a specific embodiment, the hearth 22 has a feeding pipe 1 on each of the left and right sides, and the feeding pipes 1 are provided with feeding pipe cover plates 11.

In a specific embodiment, a timer for controlling the vibration of the vibration rod 3 is connected to the vibration rod 3.

The utility model can continuously burn for 4 hours by adding primary fuel, and is very convenient to use. The utility model discloses a control and be 30 ~ 45 degrees contained angles between two conveying pipes and the furnace, the fuel glides under the dual effect of the vibrations power of self gravity and vibrations stick, and automatic fuel that adds need not the manpower. The vibrating rod is connected with the furnace bottom plate through the bracket, and the furnace dust is removed at regular time under the control of the timer without manpower.

In a specific embodiment, the tank heating pipe 71 is disposed at the bottom of the water tank 7, and both the water tank 7 and the tank heating pipe 71 are made of 304 stainless steel.

In a particular embodiment, said water tank 7 is also provided with an automatic water inlet valve or a manual water filling; the water tank is also provided with a water outlet valve, a bottom water valve and a water outlet booster pump. The manual water filling port and the water outlet booster pump are structures specially designed for regions without tap water. The water outlet valve is designed on the side face of the water tank and is 1-10 cm higher than the water tank heating pipe, and water is always kept beside the water tank heating pipe. The bottom water valve is designed at the bottom of the water tank and is mainly used for testing the water tank or cleaning the water tank to discharge waste water.

In a specific embodiment, the middle section of the upstream flue gas duct is also disposed around the cold air inlet 211 to heat the cold air entering the furnace, and the middle section of the downstream flue gas duct is also disposed around the cold air inlet 211 to heat the cold air entering the furnace.

In a specific embodiment, the heat exchange tube 26 is provided with heat receiving fins 261 on the inner wall thereof, and heat radiating fins 262 on the outer wall thereof.

The furnace body 2 is also provided with an automatic temperature control switch, when the temperature of the heat exchange tube 26 reaches above 50 ℃, the automatic temperature control switch automatically starts the warm air blower 9, and when the temperature of the heat exchange tube 26 is lower than 50 ℃, the automatic temperature control switch automatically closes the warm air blower 9.

The utility model discloses use the operation explanation as follows:

firstly, a power switch is turned on, ignition fine firewood is placed on a furnace bottom plate, fuel is placed in the double feed pipes, a feed pipe cover plate is covered, ignition is carried out at a furnace mouth, a furnace mouth cover plate is closed, a smoke extractor is immediately opened to discharge smoke, fresh air enters a hearth through the furnace bottom plate to burn, the ignition condition is checked through a fire observation window, and if the ignition is unsuccessful, the ignition process can be repeated. When the smoke extractor works, the pressure in the feed pipe and in the hearth is lower than the atmospheric pressure, primary fresh air enters the hearth from the ventilating hole of the hearth plate for combustion, secondary fresh air enters the hearth from the gap of the cover plate of the feed pipe and the gap of the furnace cover for combustion supporting, the combustion is very sufficient, the ash in the furnace is little, and when the temperature of the hearth reaches about 450 ℃, no smoke is generated basically. After the power supply is turned on, the timer controls the vibrating rod to work for 10 seconds at an interval of 20 minutes, the vibrating rod is linked with the furnace bottom plate to remove furnace dust to the dust receiving drawer, meanwhile, the vibrating fuel naturally slides downwards to supplement the fuel, and the working time is close to 4 hours. After the combustion is stable, the temperature of the heat exchange tube rises, when the temperature reaches 50 ℃, the automatic temperature control switch is switched on, and the warm air blower works to supply warm air. After the combustion is stable, the temperature of the flue gas pipeline is close to 300 ℃ when the flue gas pipeline is discharged, after the flue gas pipeline radiates heat around a cold air inlet of the furnace body and a water tank heating pipe radiates heat twice, the temperature of the flue gas pipeline is close to the normal temperature, the temperature of inlet air at the cold air inlet is preheated in the process, and hot water is generated.

The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions and replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A warm air furnace is characterized by comprising a feeding pipe (1), a furnace body (2), a vibration rod (3), an ash receiving drawer (4), a smoke exhaust ventilator (5), a smoke pipeline (6), a water tank (7), a warm air pipeline (8) and a warm air blower (9), the furnace body (2) comprises a furnace body shell (21) wrapped at the outermost side, a furnace hearth (22) arranged at the lower part and positioned at the innermost side, and a fireproof heat-insulating material filled between the furnace hearth (22) and the furnace body shell (21) at the lower part, a feed inlet (221) is arranged on the side surface of the furnace hearth (22), the feed inlet (221) is communicated with a feed pipe (1) which extends obliquely upwards to the outside of the furnace body, a movable furnace bottom plate (24) is arranged at the lower part of the furnace hearth, a vent hole (241) is arranged on the furnace bottom plate (24), the furnace bottom plate (24) is connected with a vibration rod (3), and an ash receiving drawer (4) is arranged below the furnace bottom; the upper furnace body is hermetically surrounded by a furnace body shell (21), the upper furnace body and the lower furnace body are completely separated by a partition plate (25), a heat exchange tube (26) is arranged in the upper furnace body, and the heat exchange tube (26) sequentially penetrates through the partition plate (25) and the top of the furnace body shell (21) from bottom to top to communicate the hearth (22) with the flue gas pipeline (6); one side of the upper furnace body shell is communicated with a heating pipeline (8), and the other side of the upper furnace body shell is provided with a cold air inlet (211) for allowing cold air to enter the hot air furnace; the smoke pipeline (6) comprises an upstream smoke pipeline and a downstream smoke pipeline, one end of the upstream smoke pipeline is connected with the heat exchange tube (26), the other end of the upstream smoke pipeline is communicated with one end of a water tank heating tube (71) in the water tank (7), one end of the downstream smoke pipeline is communicated with the other end of the water tank heating tube (71), and the other end of the downstream smoke pipeline is connected with the smoke extractor (5); the cold air is preheated by a flue gas pipeline (6) at a cold air inlet (211) before entering the upper furnace body, then is converted into hot air by heat exchange of a heat exchange pipe (26) in the upper furnace body, and finally is heated by a heating pipeline (8) and a heating fan (9); hot flue gas enters the water tank heating pipe (71) along the flue gas pipeline (6) and exchanges heat with water in the water tank (7) through the water tank heating pipe (71), so that the water tank (7) obtains hot water.

2. The warm air furnace according to claim 1, characterized in that a bracket (31) is further provided between the furnace floor (24) and the vibration rod (3), and the furnace floor (24) is connected with the vibration rod (3) through the bracket (31).

3. The warm air furnace according to claim 1, characterized in that the front of the furnace chamber (22) is provided with a fire door (222) for ignition, the fire door (222) is provided with a fire door cover (23), the fire door cover (23) is further provided with a fire window (231), and the fire window (231) is made of refractory glass.

4. The warm air furnace according to claim 1, characterized in that the feeding pipe (1) and the hearth (22) form an included angle of 30-45 degrees in the vertical direction.

5. The warm air furnace according to claim 1, characterized in that the hearth (22) has a feeding pipe (1) on each of the left and right sides, and the feeding pipes (1) are provided with feeding pipe cover plates (11).

6. The warm air furnace according to claim 1, characterized in that a timer for controlling the vibration of the vibration rod (3) is connected to the vibration rod (3).

7. The warm air furnace according to claim 1, characterized in that the water tank heating pipe (71) is arranged at the bottom of the water tank (7), and the water tank (7) and the water tank heating pipe (71) are both made of 304 stainless steel.

8. Warm air furnace according to claim 1, characterized in that the water tank (7) is further provided with an automatic water inlet valve or a manual water filling; the water tank is also provided with a water outlet valve, a bottom water valve and a water outlet booster pump.

9. The warm air furnace according to claim 1, characterized in that the middle section of the upstream flue gas duct is also arranged around the cold air inlet (211) to heat the cold air entering the furnace body, and the middle section of the downstream flue gas duct is also arranged around the cold air inlet (211) to heat the cold air entering the furnace body.

10. The warm air furnace according to claim 1, characterized in that the heat exchange pipe (26) is provided with heat receiving fins (261) on an inner wall thereof and heat radiating fins (262) on an outer wall thereof.