WO2006086915A1

WO2006086915A1 - Multifunctional combustion furnace

Info

Publication number: WO2006086915A1
Application number: PCT/CN2005/000575
Authority: WO
Inventors: Yim Cheong Li
Original assignee: Yim Cheong Li
Priority date: 2005-02-18
Filing date: 2005-04-26
Publication date: 2006-08-24
Also published as: HK1071667A2; CN1821661A; CN100386566C

Abstract

A kind of combustion furnace having multi work modules is disclosed in the present invention. The combustion furnace comprises a case shell, a furnace body, a hot water tank, a grate, a slag-off device, a fire-leading device, an air blower, an assistant water tank, a movable furnace base, a heat collection device and etc. The low temperature water in the assistant water tank circulates to the high temperature water in the heat collection device and the hot water tank by convection between the cold water and the hot water. The combustion furnace comprises three work modules, i.e. smolder module, moderate heating module and quick heating module.

Description

Multifunctional burner technology

The invention relates to a multifunctional burner. In particular, the burner of the present invention can operate in smoldering, moderate heating, rapid heating, etc., and can provide a variety of output forms. Background technique

Burners using solid fuels such as coal, wood, charcoal, herbivore feces have long been used. Generally, a burner mainly includes a casing and a furnace body installed in the casing. The furnace body is generally made of a material resistant to high temperatures and has an upright cylindrical or frustoconical wall in which a furnace (combustion chamber) is formed. The solid fuel is placed in the furnace and burned, and the ash and residue generated by the combustion are dropped by a grate (furnace) provided at the bottom of the furnace body. Objects that need to be heated, such as kettles, cooking utensils, etc., are placed above the top of the furnace. The outer casing forms a surrounding space around the outer circumference of the furnace wall. In order to prevent the heat of the furnace body from being excessively distributed to the outer casing to cause energy loss or burns, the surrounding space may be constructed as a vacuum space, and a heat insulating layer may be applied to the inner surface (and/or the outer surface) of the outer casing. Further, in order to improve the heat efficiency, a hot water tank is sometimes disposed around the furnace body in the surrounding space to heat the water contained in the hot water tank by the heat radiated from the furnace body. In this way, the stove has both the function of cooking and providing hot water.

As is well known, many of these stoves work continuously. That is, the fuel therein remains in a burning state. In cold or cold seasons, this stove is used not only for cooking and hot water, but also for indoor heating. In this case, continuous combustion of the fuel is necessary. However, continuous combustion of the fuel does not mean that it needs to be burned at a constant burning rate. In fact, the bottom of the furnace body is usually provided with an intake valve. By adjusting the opening degree of the intake valve, the natural intake air amount can be controlled to control the combustion speed. When it is used for cooking and the like that requires concentrated heat heating, the burning speed of the fuel is required to be high. For this purpose, the intake valve can be fully opened and the top of the furnace body is also opened and directly facing the heated appliance, which provides a high output heat. In the case of indoor heating only, in order to avoid energy waste, it is not desirable to burn the fuel quickly. At this point, the intake valve can be completely closed or only a small gap can be left, and the top of the furnace body is also closed with a cover. In this way, only a small amount of air flows through the furnace, and the stove remains in a smoldering (fire) state, thereby providing low output heat.

However, the disadvantage of the prior art burner is that since the combustion speed is controlled only by adjusting the intake air amount, the adjustment range is small, and the stove can only provide two working modes, namely smoldering and natural heating mode. . Sometimes, people also need stoves to provide heat more quickly. For example, if you want to use a stove to provide bath water or directly supply a large amount of boiling water, you need a stove to quickly heat a large amount of water, and the burning speed of conventional stoves is far from this requirement. In addition, the volume of the hot water tank in the prior art burner is small, and it is also difficult to meet the requirement of supplying a large amount of hot water.

In addition, it is more troublesome to ignite the fuel after the first ignition or extinction of the fuel in the furnace. The ignition operation is time consuming and often produces heavy smoke, which can damage the environment and affect the health of the operator. Summary of the invention

The object of the present invention is to solve the problems in the prior art. In particular, the present invention contemplates providing a stove having more modes of operation, capable of outputting different amounts of heat, and having multiple functions.

In order to achieve the above object, the present invention provides a burner having a plurality of operating modes, comprising: an outer casing composed of a top wall, an inner side wall, an outer side wall, a support plate, a bottom wall, a top wall, an inner side wall, The support plate and the upper half of the outer side wall define a gas-tight vacuum space, and the lower half of the support plate, the bottom wall and the outer side wall are limited PT/CN2005/000575 defines a gas supply space below the vacuum space;

a furnace body which is installed in an upright manner in the outer casing and surrounded by the inner side wall, the bottom end of the furnace body being supported by the inner edge of the support plate, and the furnace body having a furnace composed of molded integral heat-resistant bricks a wall and a combustion chamber defined in the furnace wall, the solid fuel is placed in the combustion chamber and combusted, and the gas supply space supplies air to the combustion chamber;

a hot water tank formed around the furnace wall in the upper half of the vacuum space for heating the water contained therein by the heat conducted by the furnace wall;

a slagging device for discharging ash, the slagging device comprising a slag discharge port formed in the lower half of the side wall and a slag discharge port slidable relative to the slag discharge opening to adjust the slag discharge opening degree Board

a blower for forcibly conveying air to the furnace body; the blower has an air supply opening disposed in the lower half of the side wall, and the opening of the air supply opening is adjustable;

a heat collector detachably disposed at the top of the furnace body and having a closed annular inner chamber for accommodating water for heating the water in the annular inner chamber by heat from the top of the furnace body, the collector a plurality of supporting ribs or protrusions on the top surface for supporting the cooking appliance;

a secondary water tank disposed outside the outer casing, a portion of the secondary water tank being located higher than the heat collector and the hot water tank, the secondary water tank having a pipeline communicating with the heat collector and the hot water tank, and passing through the pipeline The low temperature water in the sub tank and the 'high temperature water in the collector and the hot water tank are circulated, thereby increasing the temperature of the water in the Chang IJ tank.

The burner of the present invention has the following three modes of operation:

The smoldering mode, wherein the slag discharge port and the air supply opening are zero or the minimum value required to maintain the solid fuel does not extinguish, the blower does not start, and the fuel burns at the slowest speed; the medium heating mode, wherein, the air supply port and The slag discharge opening is the largest; or, the slag discharge opening is zero, the blower is opened, and the air vent is adjusted to a certain opening; When the fuel is burned at a medium speed;

In the rapid heating mode, the slag opening is zero, the blower is turned on, and the air vent is adjusted to the maximum opening to allow the fuel to burn at the maximum speed.

The solid fuel used in the multifunctional burner of the present invention is selected from one of the following materials: coal, wood, charcoal, herbivore animal manure.

The multi-function burner may also include a furnace detachably disposed below the combustion chamber for supporting solid fuel in the combustion chamber.

The multifunctional burner may further include a igniting net detachably disposed under the combustion chamber for igniting solid fuel in the combustion chamber, the flammable material being placed on the igniting net, and ignitable by ignition The solid fuel in the combustion chamber is ignited, and after the solid fuel in the combustion chamber begins to burn, the ignition net is taken out.

The slagging device may further include a ash collecting tray placed on the bottom wall facing the bottom end of the furnace body.

The blower may be a continuously variable blower driven by a direct current motor, and a center line of the air supply port intersects a center line of the furnace body.

The volume of the sub tank is 20 to 30 times the volume of the hot water tank, preferably about 25 times, for example, 60 to 300 liters. The volume of the hot water tank may be 1 / 20 to 1 / 30, preferably 1 / 25 of the volume of the sub tank.

The collector has an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are made of heat resistant pipe or sheet, and may be flexible or foldable or detachable.

The heat resistant brick is made of mud resistant and can withstand temperatures of 2000 °C. The pressure in the vacuum space is preferably 6 X 10 - ³ Pa. The hot water tank is preferably arranged at the upper part of the vacuum space.

The side walls and the bottom wall of the sub tank are preferably provided with a vacuum chamber for heat insulation and heat preservation. The top wall of the secondary tank is preferably single layer and detachable. The multifunctional burner may further include a movable furnace seat, and when the heat collector is removed, the movable furnace seat is placed on the top wall of the outer casing to support the cooking appliance.

The burner according to the invention has a plurality of operating modes, the temperature in the furnace can be easily adjusted over a wide range, and the burner can have multiple functions, for example for cooking, supplying hot water or boiling water at different adjustable speeds. . Further, the burner of the present invention is easy to handle, has good versatility, is low in running cost, can supply a large amount of hot water, and can provide a practical by-product. Further, the burner of the present invention and the fuel used therefor are safe and reliable and do not explode. DRAWINGS

1 is a schematic view of a burner in accordance with a preferred embodiment of the present invention.

Figure 2 is a schematic view of the furnace.

Figure 3 is a schematic diagram of a fire-fighting net.

Figure 4 is a schematic illustration of a water pipeline system. detailed description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings.

Referring first to Figures 1 through 4, various components in a burner in accordance with a preferred embodiment of the present invention are described.

A housing 16 includes a vertical outer side wall 18, a vertical inner side wall 6 in the outer side wall, a top wall 2 connecting the top end of the inner side wall and the outer side wall, and a bottom end and an outer side wall connecting the inner side wall. A support plate 38 between the circumferences and a bottom wall 60 attached to the bottom end of the outer side wall. Most of the components of the oven are housed in a housing, preferably made of metal, for example stamped and welded from a metal sheet such as a stainless steel plate. The portion (upper half) of the top wall 2, the inner side wall 6, the support plate 38, and the outer side wall 18 between the top wall and the support plate defines a hermetic closed space. Passing through the vacuum port 30 is evacuated, and the closed space forms a vacuum space indicated by reference numeral A in the drawing. The degree of vacuum in the vacuum space A satisfies the following conditions: The pressure in the vacuum space A is 6 X 10 - ³ Pa. The vacuum port 30 is preferably provided on the outer side wall 18 and remains closed after evacuation. The function of the vacuum space A is to prevent a large amount of heat transfer from the furnace body to the outer casing. In order to further prevent the outer casing from being heated, a heat insulating layer may be formed on the inner surfaces of the top wall 2, the bottom wall 60, and the outer side wall 18. The portion (lower half) of the support plate 38, the bottom wall 60, and the outer side wall 18 between the support plate and the bottom wall defines a gas supply space B located below the vacuum space. A holder 22 is attached to the lower surface of the support plate 38.

A furnace body 14 is mounted in the outer casing 16 in an upright manner and is surrounded by the inner side wall 6. The gap between the furnace body 14 and the inner side wall 6 is extremely small so that heat can be efficiently and quickly transferred from the furnace body 14 to the inner side wall 6. The furnace body has a cylindrical or frustoconical wall and a combustion chamber (furnace) C defined in the furnace wall. The solid fuel is placed in the combustion chamber and burned. The furnace body 14 is disposed at the middle and the upper portion of the inner space of the outer casing 16. The furnace body is open up and down. When the furnace body is frustoconical, the diameter of the opening at the top end of the furnace body is smaller than the diameter of the opening at the bottom end of the furnace body to obtain heat concentration (concentration). The height of the furnace body is substantially the same as that of the inner side wall 6, and the bottom end of the furnace body is supported by the inner edge of the support plate 38. The inner edge of the support plate 38 has an opening corresponding to the opening at the bottom end of the furnace body. The air supply space B is for supplying air to the combustion chamber.

The solid fuel that can be burned in the combustion chamber C includes coal, wood, charcoal, herbivore animal waste, and the like. Ash or residue produced after combustion is also a very useful by-product. If the fuel is wood, charcoal, or herbivore animal waste, the ash or residue can be used as a farming fertilizer. If the fuel is coal, the residue can be used as a litter for poultry or livestock feeding rooms. The residue from combustion is sterile and dry, so the litter used as a poultry or livestock breeding room is hygienic. After the residue absorbs the feces of poultry or livestock, it can be used as a farming fertilizer.

The furnace wall may be constructed of heat resistant bricks. Heat-resistant bricks are molded from refractory mud by molding One piece, and has a specific thickness. Therefore, the heat-resistant brick constituting the furnace wall of the present invention not only can concentrate the combustion of the combustion chamber, but also has an integral structure to ensure a long service life. At the same time, the heat transfer performance of the heat-resistant brick is also very good, and its heat transfer efficiency can reach

More than 80%. Since the heat-resistant brick made of refractory mud can withstand higher temperatures (for example, can withstand a high temperature of 2000 ° C), although the combustion chamber temperature of the burner of the present invention can be up to 1300 ° C or higher, the refractory brick can still Has a long service life, such as 8 to 10 years.

A hot water tank 12 is formed in the vacuum space A for heating the water in the hot water tank by the heat conducted from the furnace wall to the inner side wall. The hot water tank 12 is formed with an annular space around the inner side wall 6 by the upper wall panel 12A, the side wall panel 12B, and the lower wall panel 12C. The hot water tank is preferably disposed above the vacuum space A because the upper temperature of the combustion chamber C is higher than the lower portion to help transfer more heat to the water in the hot water tank. The hot water tank has a water inlet 32 at the bottom end of the side wall panel 12B and a water outlet 34 at the top end of the side wall panel 12B. The water inlet and the water outlet communicate with the internal water storage space of the hot water tank and are respectively connected to the outer side wall. The junctions 72, 74 outside the 18, the junction between the lines 72, 74 and the outer side wall 18 are airtight to prevent air from leaking into the vacuum space A through the joint.

A slag discharge device is formed at the bottom of the casing for discharging the ash. The slagging device includes a slag discharge port formed in the lower half of the outer side wall 18 and a slag discharge port 44 which is slidable relative to the slag discharge opening to adjust the opening of the slag discharge opening. The slag discharge plate 44 is slidable left and right with respect to the slag discharge port or slides up and down. Preferably, the slagging device may further include a ash collection tray or cartridge placed on the bottom wall 60 facing the bottom end of the furnace body. After collecting a certain amount of ash, the ash collection tray or box can be removed and cleaned.

A furnace 20 (shown in Figure 2) is detachably disposed below the combustion chamber for supporting solid fuel in the combustion chamber. The furnace 20 is held by the holder 22. The furnace 20 has a plurality of (for example two) grate bars for the ash produced by the combustion The slag falls. The grate 20 can be removed from the holder 22 and taken out through the slag discharge port. It should be noted that although the case where the ignition net 36 is held on the holder 22 as described below is shown in Fig. 1, it is understood that the furnace 20 is held by the holder 22 in the same manner. Further, as shown in FIG. 1, the holder 22 is in the form of a hook suspended from the lower surface of the support plate 38. It should be noted that although the hook is directed in a direction perpendicular to the plane of the paper for convenience of illustration in Fig. 1, the hook is preferably directed to the slag discharge port so that the furnace 20 can be moved from the holder 22 by moving toward the slag discharge port. Remove it and take it out through the slag discharge port.

A igniting net 36 (shown in Figure 3) for igniting the fuel can be held by the retaining member 22 so as to be removably placed under the combustion chamber to ignite the solid fuel in the combustion chamber. That is, the holder 22 can hold one of the furnace 20 and the ignition grid 36. The igniting net 36 can also be removed from the holder 22 and taken out through the slag discharge port. When the fuel in the combustion chamber is ignited for the first time or the fuel is ignited again after the fire is extinguished, flammable solid alcohol, paraffin, small charcoal and the like may be placed on the ignition net 36. The igniting net 36 is then placed on the holder 22 through the slag discharge port. Next, the solid fuel is placed on the igniting net 36. By igniting the inflammable material on the ignition net 36, the solid fuel in the combustion chamber can be ignited. If the solid fuel is made of lighter and loose charcoal, herbivore animal manure, etc., it is not necessary to remove the ignition net 36 so that the ignition net 36 functions as a furnace. If the solid fuel is made of heavy mass of large coal, wood, etc., after the solid fuel is ignited, the bulk solid fuel may be taken out of the combustion chamber, and then the igniting net 36 is removed and replaced with the furnace 20 The burnt bulk solid fuel is then returned to the combustion chamber and placed on the furnace 20 for continuous combustion.

A blower 62 disposed outside the outer casing is used to force the delivery of air to the furnace body. The blower 62 is a continuously variable blower driven by a direct current motor, and has a supply port 52 and a movable blower plate 54 disposed in the lower half of the outer side wall 18. The opening of the air supply port 52 can be arbitrarily adjusted, whereby the amount of air input by the air blower can be adjusted. give The centerline of the tuyere 52 intersects the centerline of the furnace body 14 to facilitate the introduction of air into the combustion chamber. In the case where the solid fuel is coal, by using the blower 62, the temperature in the combustion chamber can be raised to 130 (TC or more.

A secondary water tank 46 is disposed outside the outer casing for storing hot water from the hot water tank. The sub tank 46 is composed of a top wall, a side wall and a bottom wall, wherein the bottom wall is substantially the same height as the lower wall 12C of the hot water tank 12, but the top wall is significantly higher than the upper wall 12A of the hot water tank 12. The volume of the sub tank 46 is 20 to 30 times the volume of the hot water tank 12, preferably about 25 times, for example, 60 to 300 liters. As shown in FIG. 4, the auxiliary water tank 46 has: a water inlet and outlet 50 provided at a bottom end of one side wall thereof, the height of which is substantially the same as the water inlet 32 of the hot water tank; the water inlet 48 provided on the same side wall, the height thereof It is substantially the same as the water outlet 34 of the hot water tank; a first water outlet 40 provided at the bottom end of the opposite side wall; and a second water outlet 42 provided at the top end of the opposite side wall. The water inlet 48, the water inlet and outlet 50, and the first and second water outlets 40, 42 are both in the interior water space of the secondary water tank 46.

S o

The sub tank 46 is preferably made of a metal plate provided with a heat insulating material. The side and bottom walls of the secondary tank may be provided with a vacuum chamber for further insulation and insulation. The top wall of the sub tank is single and removable. The inside of the sub tank can be cleaned by removing the top wall. In addition, items to be heated may be placed on the top wall to utilize the heat of the sub tank for heating and holding.

A heat collector 24 is removably placed on top of the furnace body 14 and is constrained from translation relative to the top of the furnace body. As shown in Figures 1 and 4, the heat collector 24 is made of metal and has a closed annular inner cavity 90 for containing water. The heat collector 24 has a water inlet 10 provided at the bottom end of its outer side wall and a water outlet 8 provided at the top end of its outer side wall. The water inlet and the water outlet communicate with the annular inner chamber 90 and are connected to the inlet pipe 26 and the outlet pipe 28, respectively. The inlet pipe 26 and the outlet pipe 28 are made of heat resistant tubing or sheet material and may be flexible or foldable or detachable. At the same time, collector 24 The top surface is provided with a plurality of support ribs or projections 4 on which the cooking utensils can be placed. Thus, the water in the annular inner chamber 90 can be heated by the heat collector 24 while the cooking operation is being performed. When the temperature in the combustion chamber is brought to a high temperature (for example, 1300 ° C or higher) by using the blower 62, it is preferable to use the heat collector 24, at which time the heat collector 24 can quickly supply a large amount of hot water. Since the cooking appliance can be placed on the heat collector 24, the water in the heat collector 24 can be heated while cooking. This provides a very convenient feature. ··

An optional movable hob 64 can be used in place of the collector 24. When the heat collector 24 is not used, the heat collector 24 can be removed, and the movable hearth 64 can be placed on the top wall 2 of the outer casing 16 for placing an object such as a cooking utensil to be heated. The upper surface of the movable hearth 64 is provided with support ribs 66 to support the cooking utensils and prevent the cooking utensils from slipping. When the solid fuel is charcoal, herbivore animal waste or the like, since the temperature in the combustion chamber is not too high, the effect of using the heat collector 24 at the same time during cooking is not optimal, and the movable furnace seat 64 can be employed at this time.

A water line system is used to supply cold water to the hot water tank 12, the heat collector 24, and the auxiliary water tank 46, establish a water circulation passage between the hot water tank 12 and the heat collector 24 and the auxiliary water tank 46, and output hot water. The water delivery pipeline system will be described in detail below with reference to FIG. A cold water source (e.g., a water pipe) is connected to the first port of the tee fitting T3 through a cold water input line 68 with a check valve 88 and a shutoff valve V3. The second port of the three-way joint T3 is connected to the inlet pipe 26 of the collector 24; the third port of the three-way joint T3 is connected to the line 80. Line 80 is connected to the first port of tee joint T2. The second port of the three-way joint T2 is connected to the water inlet 32 of the hot water tank 12 via a line 72; the third port of the three-way joint T2 is connected to the water inlet and outlet 50 of the sub tank 46 through a line 82 with a shut-off valve V5. . In addition, the outlet pipe 28 of the collector 24 is connected to the first port of the tee fitting T4 via the elbow 86 and the line 98. The second port of the three-way joint T4 is connected to the water outlet 34 of the hot water tank 12 through a line 74; the three-way joint The third port of T4 is connected to the water inlet 48 of the sub tank 46 via line 84. Further, a line 92 having a shutoff valve V4 is connected to the first water outlet 40 of the sub tank 46. Further, a line 94 is connected between the second water outlet 42 of the sub tank 46 and the first port of the tee fitting T1. The second port of the three-way joint T1 is connected to the hot water output line 70 with the shut-off valve VI; the third port of the three-way joint T1 is connected to the line 76 with the shut-off valve V2, which leads to an open to the atmosphere. The glass container 78 is evacuated and has the highest water level indicator line 96. In a state where the shutoff valves VI, V4 are closed, if the sub tank 46 is filled with water and water is continuously injected into the sub tank 46, the water in the sub tank 46 can flow into the discharge glass container 78 and reach the highest water level indication line 96. Therefore, by observing that the water surface reaches the highest water level indicating line 96, it can be known that the sub tank 46 is filled with water. Alternatively, if the water in the sub tank 46 reaches a boiling state, the steam can be discharged through the discharge glass container 78, so that the boiling state can be known.

Through the water pipeline system, the auxiliary water tanks 46 are respectively connected to the hot water tank 12 and the heat collector 24, and the water in the auxiliary water tank 46 and the water in the hot water tank 12 and the heat collector 24 are respectively circulated. At this point, it should be pointed out that the circulation of water is achieved by the convection of hot and cold water. For this reason, it is necessary to make the upper half of the sub tank 46 higher than the hot water tank 12 and the heat collector 24. Since the pressure in the lower half of the sub tank 46 is substantially equal to the pressure in the hot water tank 12 and the collector 24, the pressure in the upper half of the sub tank 46 is higher than the pressure in the lower portion thereof, so the secondary. The pressure in the upper half of the water tank 46 is also higher than the pressure in the hot water tank 12 and the heat collector 24. By this pressure difference, the circulation between the water in the sub tank 46 and the water in the hot water tank 12 and the heat collector 24 can be achieved.

The operation of the water pipeline system is described below.

(1) Add water status. At the time of initial use, before the fire is raised, the hot water tank 12, the heat collector 24, and the sub tank 46 are all empty at this time. At this point, close the shutoff valves VI and V4, The shutoff valves V2, V3 and V5 are opened, and cold water is passed through the check valve 88 from the line 68 into the three-way joint T3. A cold water output from the three-way joint Τ3 enters the heat collector 24 through the inlet pipe 26, and can enter the sub-tank 46 through the outlet pipe 28, the line 98 and the line 84 after filling the collector 24; the output is output by the three-way joint Τ3. Another cold water enters the tee joint Τ2. A cold water output by the three-way joint Τ2 enters the sub tank 46 via line 82; another cold water output by the three-way joint Τ2 enters the hot water tank 12 via line 72, and passes through the line 74 after filling the hot water tank 12 and 84 enters the sub tank 46. As the water is supplied further, the sub tank 46 is eventually filled with water. At this time, since the shutoff valve VI is closed, the water will flow into the discharge glass container 78 after filling the sub tank 46, and after the water surface reaches the highest water level indication line 96, the shutoff valve V3 can be closed to stop the water supply. . If the water level is above the highest water level indicator line 96, the shut-off valve V4 can be opened to drain excess water.

(2) Static heating. Next, using the igniting net 36 to raise the fire, the fuel in the combustion chamber is brought to a normal combustion state. At this time, since the hot water tank 12 and the heat collector 24 are heated, it is possible to form hot water convection in the hot water tank 12 and the heat collector 24 and the sub water tank 46. According to the convection characteristics of the hot and cold water, the cold water at the bottom of the sub tank 46 flows out from the inlet and outlet 50, and enters the bottom of the hot water tank 12 through the water inlet 32 through the line 82 and the line 72, and the cold water is heated and rises in the hot water tank 12, Hot water flows from the water outlet 34 and enters the sub tank 46 from the water inlet 48 via lines 74 and 84. Thus, a continuous circulation is formed between the hot water tank 12 and the sub tank 46. Similarly, the cold water at the bottom of the sub tank 46 flows out of the inlet and outlet 50 and enters the annular chamber 90 of the collector 24 through the inlet port 10 through line 82, line 80 and inlet pipe 26. The water heated in the annular inner chamber 90 flows out of the water outlet 8 and enters the sub tank 46 through the water inlet port 48 through the outlet pipe 28, the line 98 and the pipe line 84. Thus, a continuous loop is formed between the collector 24 and the sub tank 46.

Through the above two consecutive cycles, the water temperature in the sub tank 46 continues to rise until It is finally heated to a boiling state. The steam generated by boiling in the sub tank 46 can be discharged from the discharge glass container ₇₈ . In this way, hot water or even boiling water can be accumulated in the sub tank 46. When any water is needed, the shut-off valve VI or V4 can be opened to discharge the hot water or boiling water in the sub tank 46. Thereafter, the shutoff valve V3 can be opened to fill the sub tank 46 with water again.

(3) Dynamic heating. When continuous use of hot water is required (eg bathing), close the shut-off valves V2, V4 and V5 and open the shut-off valves VI and V3. Thus, cold water from the cold water source is input from line 68 and enters hot water tank 12 and collector 24 through line 72 and inlet pipe 26, respectively. The heated water is concentrated in line 84 through line 74 and outlet pipe 28 and from inlet 84 into inlet tank 46 from inlet 48. The hot water in the sub tank 46 is output through line 70 for continuous use.

The burner of the present invention can be operated in three modes of operation, which are described in detail below.

The first mode of operation is the smolder mode. This mode is adopted when it is not necessary to heat the cooking appliance or the heat collector 24 with a burner, for example, at night. At this time, both the slag discharge port and the air supply port 52 are closed (the opening degree is zero), the blower is not activated, and the air is supplied to the combustion chamber only through the gap between the air supply port and the slag discharge port, so that the fuel burns at the slowest speed and the firepower is the weakest. In order to make the burner in a smoldering (fire) state. At this point, it should be pointed out that if only the minimum amount of air necessary to maintain the fuel non-extinguishing is supplied to the combustion chamber through the slit, that is, the fuel may be extinguished due to lack of oxygen, the air supply port may be provided. And / or the slag opening opens a small gap. Based on the combustion results of the fuel to accumulate experience, the user can determine the size of the gap. In the smolder mode, the temperature of the combustion chamber is maintained above 100 °C, and the smoldering time can be as long as 10 hours. Even in the smolder mode, the water in the sub tank can be heated by a hot water tank (which can also be equipped with a collector). After 3 to 5 hours in the smoldering mode, the water temperature in the sub tank 46 can be made to be about 80 to 90 °C. After 7 to 10 hours, you can The water temperature in the sub tank 46 is brought close to 100 °C.

The second mode of operation is the moderate heating mode. When it is necessary to provide medium firepower, for example, when cooking, the air supply port and the slag discharge port can be opened to the maximum extent (maximum opening degree) to supply air to the combustion chamber in a natural air intake manner. If the user feels that there is a slight lack of firepower, the slag discharge port can be closed (opening is zero), the blower is turned on, and the air supply opening is adjusted to a satisfactory opening. In both cases, the fuel is burned at moderate speeds to provide medium fire and the temperature of the combustion chamber is above 300 。. Therefore, this mode of operation can be referred to as a moderate heating mode. This mode is suitable for general cooking in home use. The collector 24 can be used at this time to heat the water by the collector 24 and the hot water tank 12. Alternatively, the heat collector 24 may not be used to heat the water using only the hot water tank 12. In any case, in the moderate heating mode, the sub tank 46 can be used to store hot water or even boiled water. The water in the sub tank 46 can even be boiled by convection of hot and cold water.

The third mode of operation is the rapid heating mode. When it is necessary to provide a large firepower, for example, for a person to take a bath, the collector 24 is placed above the furnace body, the slag discharge port is closed (the opening degree is zero), the blower is opened, and the air supply port is adjusted to the maximum opening degree, The fuel is burned at maximum speed and thus provides maximum fire power, at which time the temperature in the combustion chamber can be raised above 1300 ° C, so that hot water can be continuously supplied quickly. This mode is suitable for bathing and the like in home use to provide a large amount of hot water or boiling water. Alternatively, it can be used for large-scale cooking in hotels and restaurants.

The hot water tank 12 in the burner of the present invention can transfer waste heat to the water in the hot water tank through the heat resistant brick in any of the operating modes, and can transfer the hot water to the secondary water tank and store it therein. Meanwhile, as described above, the burner of the present invention can provide hot water of different temperatures.

Since the volume of the hot water tank is only about 1 / 25 of the volume of the auxiliary water tank, in the smoldering mode, the hot water tank does not absorb too much heat from the furnace body, resulting in the temperature of the furnace body. Lower. In addition, since the hot water tank is disposed around the upper portion of the furnace body, the temperature of the hot water tank is not greatly affected by the fuel mainly concentrated in the lower middle portion of the combustion chamber. At the same time, if the temperature of the water in the hot water tank drops to a certain extent, only the collector may be heated, and only the collector collects heat to the auxiliary tank through the convection of the water, and conversely, the auxiliary tank passes the convection direction of the water. The hot water tank supplies heat. In this way, the temperature of the water in the hot water tank can be kept from falling too low to keep the temperature of the furnace body from being lowered too much, thereby preventing the fuel from being extinguished.

Industrial applicability

The burner according to the invention has several advantages. First, it can be used in a home or hotel restaurant. Second, it can provide a variety of outputs, including outputting heat at different intensities to perform heating, outputting hot water at different speeds and temperatures, and the like. Also. It can use a variety of different solid fuels. Further, when coal is used as a fuel, it is possible to have a low cost, and thus it is possible to replace a stove using electricity, gas, liquefied petroleum gas, natural gas, or the like. Further, the burner itself of the present invention and the fuel used therein are safe and reliable, and do not explode. The burner of the present invention can be used for both civilian and military applications.

Claims

Rights request

1. A multifunctional burner, comprising:

An outer casing consisting of a top wall, an inner side wall, an outer side wall, a support plate and a bottom wall, and the top wall, the inner side wall, the support plate and the upper half of the outer side wall define an airtight vacuum space, the support plate and the bottom The wall and the lower half of the outer side wall define a gas supply space below the vacuum space;

a secondary water tank disposed outside the outer casing, a portion of the secondary water tank being located higher than the heat collector and the hot water tank, the secondary water tank having a pipeline communicating with the heat collector and the hot water tank, and utilizing the cold through the pipeline The convection of hot water circulates the low temperature water in the sub tank and the high temperature water in the collector and the hot water tank, thereby making the water in the sub tank Increase in temperature

2. The multi-function burner according to claim 1, wherein the burner has the following three modes of operation:

The smoldering mode, wherein the slag discharge port and the air supply opening are zero or the minimum value required to maintain the solid fuel does not extinguish, the blower does not start, and the fuel burns at the slowest speed; the medium heating mode, wherein, the air supply port and The slag discharge opening is the largest; or, the slag discharge opening is zero, the blower is opened, and the air vent is adjusted to a certain opening; at this time, the fuel is burned at a medium speed;

The multifunctional burner according to claim 1, wherein the solid fuel is selected from one of the following materials: coal, wood, charcoal, herbivore animal feces.

4. The multi-function burner according to claim 1, wherein the multi-function burner further comprises a furnace detachably disposed under the combustion chamber for supporting the combustion chamber Solid fuel.

5. The multi-function burner according to claim 1, wherein the multi-function burner further comprises a igniting net detachably disposed under the combustion chamber for igniting the combustion chamber The solid fuel, the flammable material is placed on the igniting net, and the solid fuel in the combustion chamber is ignited by igniting the flammable substance. After the solid fuel in the combustion chamber begins to burn, the igniting net is taken out.

The multifunctional burner according to claim 1, wherein the slagging device further comprises a ash collecting tray placed on the bottom wall facing the bottom end of the furnace body.

7. The multifunctional burner of claim 1 wherein said blast The machine is a continuously variable air blower driven by a DC motor, and the center line of the air supply port intersects the center line of the furnace body.

The multi-function burner according to claim 1, wherein the sub tank has a volume of 60 to 300 liters.

The multi-function burner according to claim 8, wherein the volume of the hot water tank is 1 / 20 to 1 / 30 of the volume of the sub tank.

10. The multifunctional burner according to claim 1, wherein the heat collector has an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are made of heat-resistant pipe or plate, and are flexible or Foldable or detachable.

The multifunctional burner according to claim 1, wherein the heat-resistant brick is made of refractory clay and can withstand a temperature of 2000 °C.

12. The multi-function burner according to claim 1, wherein the pressure in the vacuum space is 6 X 10 - ³ Pa.

13. The multi-function burner according to claim 1, wherein the hot water tank is disposed at an upper portion of the vacuum space.

14. The multi-function burner according to claim 1, wherein the side wall and the bottom wall of the sub tank are provided with a vacuum chamber, and the top wall of the sub tank is a single layer and detachable.

15. The multi-function burner of claim 1, wherein the multi-function burner further comprises a movable furnace seat, the movable furnace seat being placed on the top wall of the outer casing when the heat collector is removed On, to support the cooking utensils.