CN101586816A - Energy-saving household kitchen range - Google Patents

Abstract

An energy-saving household stove, including a furnace body, a furnace, and a furnace ring for erecting a pot body. A combustion chamber is formed in the furnace, and a stove grate is arranged at the bottom of the combustion chamber. The combustion chamber passes through the stove grate It is connected to the air inlet, and the combustion chamber is also connected to the furnace for adding fuel and the flue for removing smoke, and a porous heat storage radiation is blocked between the combustion chamber and the entrance of the flue. plate. The invention has the advantages of less heat loss and high thermal efficiency.

Description

Energy-saving household stove

technical field

The invention relates to an energy-saving cooker, in particular to a household cooker using solid fuels such as firewood, straw and coal.

Background technique

The invention relates to a household stove. At present, in the vast rural areas of our country, most rural families still generally use earthen or brick-concrete stoves, which mainly burn wood, reed poles or coal. The chimney is composed of the furnace, the combustion chamber, and the flue is straight through. The air enters the combustion chamber from the stove door through the furnace to support the combustion. In this way, the flame produced by the combustion is deflected along the flue to the direction of the chimney, and the cooking utensils are heated unevenly. The heat is easily radiated to the furnace and flue, and the heat spreads over a large range, resulting in low heat energy utilization and high fuel consumption. Since the fuel is mainly wood, it seriously damages forest resources. At present, liquefied gas has been widely used in cities. Stoves, but liquefied gas is still expensive compared to rural households, and the natural villages are relatively scattered, and the transportation is inconvenient. Under such circumstances, it is a feasible way to reduce the consumption of wood fuel as much as possible so as to achieve the purpose of protecting forest resources.

my country's vast number of scientific and technological workers and enterprises have done a lot of work on energy saving and consumption reduction. The CN 2427752Y patent provides a convenient mobile household stove that is suitable for rural families. It should have high thermal energy utilization and low fuel consumption. Small pluses. The inventor's household stove adopts a frame structure, which is composed of a frame, heat insulation materials, refractory bricks, furnace passage, combustion chamber, flue, and chimney. The combustion chamber is a semi-closed form with two openings, one of which is a feeding port. It is located on the side and facing the furnace so that the furnace can be directly connected to the combustion chamber. The other opening is that the combustion port is located on the upper part of the combustion chamber and extends into the flue above the combustion chamber. The corresponding hole is also opened on the stove panel corresponding to the combustion port. , the cooker is placed in this opening, and the tail of the flue is connected to the chimney. After adopting such a structure, since the combustion chamber is a semi-closed form, after the furnace directly leads to the combustion chamber, it needs to pass upward through the combustion port to the flue. In this way, the heat generated by combustion can be concentrated under the cooker, and at the same time, the suction force of the chimney makes the flame and smoke generated by combustion flow into the flue evenly along the periphery of the combustion port, forming a circular fire path, and the flame and smoke can flow freely under the cooker. Uniform distribution, thereby improving the utilization rate of heat energy. In addition, this prior art adopts a frame-type structure, and each component is integrated into a relatively independent whole with a compact structure, so the occupied area is small and the movement is more convenient.

However, this technology still has obvious disadvantages. After passing through the bottom of the pot, a large amount of heat energy remaining in the hot flue gas is lost with the flue and is not utilized. Secondly, the combustion chamber is not closed, and the top of the combustion port is still connected to the atmosphere through the gap between the bottom of the pot and the furnace body, resulting in a large amount of heat loss, although the wind pulling effect of the flue can weaken this loss. Finally, the annular inlet of the flue is located near the bottom of the pot. Under the action of pulling the wind from the flue, the hot flue gas from the combustion chamber will first flow into the flue without passing through the bottom of the pot, thus losing the opportunity to heat the bottom of the pot and wasting heat energy.

Contents of the invention

The invention aims to solve the shortcoming of low heat efficiency of the existing household cooker, and provides a household cooker with high heat efficiency.

An energy-saving household stove, including a furnace body, a furnace, and a furnace ring for erecting a pot body. A combustion chamber is formed in the furnace, and a stove grate is arranged at the bottom of the combustion chamber. The combustion chamber passes through the stove grate It is connected to the air inlet, and the combustion chamber is also connected to the furnace for adding fuel and the flue for exhausting smoke. It is characterized in that: a multi-hole heat storage radiant panels.

Further, the furnace ring has a shape that can cooperate with the pot body to form a closed furnace, and the entrance of the flue constitutes the only flue gas outlet of the closed combustion chamber.

Further, the entrance of the flue is located at a lower position of the combustion chamber, and the heat storage radiation plate is higher than the entrance of the flue and lower than the bottom of the pot.

Further, the heat storage radiation plate is in the form of a conical ring surface with a large upper part and a smaller lower part, the upper side is connected to the side wall of the furnace, and the lower side is supported on the bottom of the furnace, and the tapered annular surface faces the bottom of the pot.

0-1 Further, the furnace and the furnace bottom are lined with a heat insulating material layer.

Further, the exhaust gas drawn from the flue passes around the water heater and exchanges heat with the cold water in the water heater.

Further, the tail gas drawn out through the flue is heat-exchanged with the cold air that will enter the furnace through a heat exchanger.

Further, the heat exchanger is arranged under the heat storage radiant plate and in the furnace space at the entrance of the flue.

Further, a blower is connected to the heat exchanger.

When the invention is in use, the law of heat rising and cooling of the airflow is utilized, the flame first rushes to the bottom of the pot, and then returns to the entrance of the flue through the heat storage radiation plate, firstly fully utilizing the heat of the flame. The heat storage radiant plate is made of high temperature resistant materials, which can withstand flame radiation and flue gas erosion at 1200-1600°C for a long time. The smoke generated by fuel combustion passes through the holes of the porous heat storage radiant plate, and the heat carried by the flue gas is partially absorbed. Absorbed by the porous heat storage radiant plate, the temperature of the heat storage plate rises to 100% after being heated, and at the same time radiate heat to the heated vessel. The radiant heat absorbed by the heated vessel can account for 20-40% of the total energy, or even higher, after a certain period of time Finally, it is in a balanced state, while absorbing the heat of the flue gas, while radiating energy to the heated vessel; the flue gas passing through the heat storage radiant plate can also transfer energy to the water heater placed on the flue flow channel, and can enter after the water heater absorbs heat. The heat exchanger transmits energy to the combustion air, and then the flue gas enters the flue and is discharged through the chimney. At this time, the temperature is already very low.

Heating the cool air that reacts with the solid fuel helps to increase the flame temperature and achieve complete combustion.

The invention has the advantages of less heat loss and high thermal efficiency.

Description of drawings

Fig. 1 is the schematic diagram of the first embodiment of the present invention

Figure 1-1 is a side view of Figure 1

Figure 1-2 is a top view of Figure 1

Fig. 1-3 is the schematic diagram that the present invention uses circular stove grate

Fig. 2 is the schematic diagram of the second embodiment of the present invention

Figure 2-1 is a side view of Figure 2

Figure 2-2 is a top view of Figure 2

Fig. 3 is the schematic diagram of the third embodiment of the present invention

Figure 3-1 is a side view of Figure 3

Figure 3-2 is a top view of Figure 3

Fig. 4 is the schematic diagram of the fourth embodiment of the present invention

Figure 4-1 is a side view of Figure 4

Figure 4-2 is a top view of Figure 4

Figure 5 is a schematic diagram of the combined use of a heat exchanger and a water heater

Figure 5-1 is a side view of Figure 5

Figure 5-2 is a top view of Figure 5

Detailed ways

Embodiment one

Refer to Figure 1, 1-1, 1-2, 1-3

The energy-saving household stove includes a furnace body 1, a furnace, and a furnace ring for erecting a pot body. A combustion chamber 2 is formed in the furnace, and a stove grate 3 is arranged at the bottom of the combustion chamber 2. The combustion chamber 2 passes through The stove grate 3 communicates with the air inlet channel 4, and the combustion chamber 2 also communicates with the furnace duct 5 for adding fuel and the flue 6 for removing smoke, and it is characterized in that: the combustion chamber 2 is connected to the A porous heat storage radiation plate 7 is blocked between the inlets of the flue 6 .

The furnace ring has a shape that can cooperate with the pot body to form a closed furnace, and the entrance of the flue 6 constitutes the only flue gas outlet of the closed combustion chamber 2 .

The entrance of the flue 6 is located at the lower position of the combustion chamber 2, and the heat storage radiation plate 7 is higher than the entrance of the flue and lower than the bottom of the pot.

The heat storage radiant plate 7 is a conical annular surface with a large upper part and a smaller lower part. Its upper side is connected to the side wall of the furnace, and its lower side is supported on the bottom of the furnace. The conical annular surface faces the bottom of the pot.

The hearth and bottom of the furnace described in 0-1 are lined with a heat insulating material layer.

Embodiment two

Refer to Figure 2, 2-1, 2-2

The difference between this embodiment and the first embodiment is that the exhaust gas drawn from the flue 6 passes around the water heater 8 and exchanges heat with the cold water in the water heater 8 . The rest is the same.

Embodiment three

Refer to Figure 3, 3-1, 3-2

The difference between the present embodiment and the first embodiment is that the tail gas drawn out through the flue 6 exchanges heat with the cold air that will enter the furnace through the heat exchanger 9 .

The heat exchanger 9 is arranged in the furnace space between the bottom of the heat storage radiant plate and the entrance of the flue 6 . The rest is the same.

Embodiment four

Refer to Figure 4, 4-1, 4-2

The difference between this embodiment and the third embodiment is that: the heat exchanger 9 is connected with a blower 10 . The rest is the same.

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. Equivalent technical means that a person can think of based on the concept of the present invention.

Claims (9)

1. energy-saving household kitchen range, comprise shaft, burner hearth, be used to set up the stove circle of pot body, form the combustion chamber in the described burner hearth, bottom, described combustion chamber is provided with the kitchen range grate, described combustion chamber is communicated with air inlet duct by described kitchen range grate, described combustion chamber also is communicated with and is used to add the combustion flue of fuel and the flue of getting rid of flue gas, it is characterized in that: block the accumulation of heat radiant panel that is provided with porous between the inlet of described combustion chamber and described flue.

2. energy-saving household kitchen range as claimed in claim 1 is characterized in that: described stove circle has the shape that can cooperate, form closed furnace with the pot body, and the inlet of described flue constitutes unique exhanst gas outlet of described closed chamber.

3. energy-saving household kitchen range as claimed in claim 2 is characterized in that: the inlet of described flue is positioned at the lower position of described combustion chamber, described accumulation of heat radiant panel be higher than flue inlet, be lower than the bottom of a pan.

4. energy-saving household kitchen range as claimed in claim 3 is characterized in that: the taper anchor ring that described accumulation of heat radiant panel is big up and small down, and its top connects the sidewall of burner hearth, and its following frame is at furnace bottom, and described taper anchor ring is in the face of the bottom of a pan.

5. energy-saving household kitchen range as claimed in claim 4 is characterized in that: described burner hearth and furnace bottom are lined with insulation material layer.

6. energy-saving household kitchen range as claimed in claim 5 is characterized in that: tail gas that described flue is drawn is through around the water heater, carries out heat exchange with cold water in the water heater.

7. as claim 5 or 6 described energy-saving household kitchen ranges, it is characterized in that: the tail gas of drawing through described flue carries out heat exchange through heat exchanger and the cold air that will enter described burner hearth.

8. energy-saving household kitchen range as claimed in claim 7 is characterized in that: described heat exchanger is arranged in the furnace cavity of the below of accumulation of heat radiant panel and flue entrance.

9. energy-saving household kitchen range as claimed in claim 8 is characterized in that: described heat exchanger be connected with air blast.

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