CN102913955B - A kind of energy-saving gas cooker - Google Patents

Abstract

The invention provides an energy-saving gas cooker, which includes a pot, a furnace body, a burner, a regenerator, a reversing control valve, an induced draft fan and a flue exhaust duct, the pot and the furnace body are connected as a whole, The entire cooker is fully enclosed, the inside of the furnace body constitutes a combustion chamber, and a burner and a regenerator are installed in pairs on the wall of the furnace body. The air inlets are connected, and the regenerator is respectively connected with a normal-temperature combustion-supporting air inlet and a low-temperature flue gas outlet. The normal temperature combustion air inlet, the reversing control valve is arranged between the normal temperature combustion air inlet and the low temperature flue gas outlet, and the low temperature flue gas outlet is connected with a flue exhaust duct. The invention can improve the thermal efficiency of the cooker and solve the problem of kitchen pollution at the same time.

Description

An energy-saving gas cooker

technical field

The invention relates to a gas cooker, in particular to an energy-saving gas cooker.

Background technique

Commercial stoves in the catering industry in large and medium-sized cities in my country have basically completed the transformation from coal and oil as the main heat source to gas commercial stoves. Due to the limitation of business hours in the catering industry, chefs must use the shortest time to prepare meals to reduce customers' waiting time for meals. Therefore, the speed of serving dishes has become an important assessment index for the kitchen in the catering industry. The heating rate of the stove is the most direct factor affecting the speed of cooking. The most direct way most kitchen equipment manufacturers adopt to increase the heating rate is to increase the heat load of the gas cooker and increase the gas consumption. Although this method increases the speed of cooking, it also greatly reduces the heat utilization rate of the gas. Thereby causing a large amount of waste of gas. And the stove temperature of this traditional stove is generally lower than 900 ℃, and the flame is affected by the environment and diverges, and it is more serious when there is wind or the temperature is low. If the gas quality is poor and the temperature is low, the flame will be yellow or red, or even black smoke. Insufficient combustion will seriously exceed the standard of harmful gas, endangering the health of users. Today, when energy saving, emission reduction, and low-carbon environmental protection are emphasized, this method should not be advocated. Therefore, it is urgent to develop a high-efficiency, energy-saving and safe commercial gas stove.

At present, common energy-saving products in the market mainly achieve energy-saving effects by cutting off air-burning, and the energy-saving rate is not high, generally below 20%.

Contents of the invention

The invention provides an energy-saving gas cooker capable of improving the thermal efficiency of the cooker and improving kitchen pollution.

The energy-saving gas cooker device for realizing the object of the present invention includes a pot (1), a furnace body (2), burners (3A and 3B), regenerators (4A and 4B), a reversing control valve (6), and an induced draft fan (11) and exhaust duct (12), the cooker (1) and the furnace body (2) are connected into one body, so that the entire cooker becomes a fully enclosed type, and the interior of the furnace body (2) constitutes a combustion The chamber, on the wall of the furnace body (2), is equipped with burners (3A and 3B) and regenerators (4A and 4B) in pairs, and the burners and regenerators are matched and connected through the high-temperature air inlet , the regenerators (4A and 4B) are respectively connected with a normal-temperature combustion-supporting air inlet (8) and a low-temperature flue gas outlet (9). outlet, the low-temperature flue gas outlet (9) can also be used as a normal-temperature combustion-supporting air inlet, and the reversing control valve (6) is set between the normal-temperature combustion-supporting air inlet (8) and the low-temperature flue gas outlet (9), so The low-temperature flue gas outlet (9) is connected with a flue exhaust duct (12).

The furnace body (2) may be provided with multiple pairs of burners (3A and 3B).

The cooker is provided with temperature control and adjustment devices (7A and 7B).

The burners (3A and 3B) are connected to gas through gas control valves (5A and 5B).

The beneficial effects of the energy-saving gas cooker of the present invention are as follows:

The combustion-supporting air temperature of the energy-saving gas cooker of the present invention can reach more than 600°C, and the cooker temperature can reach more than 900°C, which can improve the thermal efficiency of the cooker, and can recycle the waste heat of the flue gas at the same time, so that the exhaust gas temperature of the energy-saving gas cooker can be reduced to 150°C. -200°C. And there is no open flame operation when the stove is in use, and the gas generated by the regenerative combustion in the closed system is discharged through the flue, thus providing a safer, cleaner, quieter and healthier working environment.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of an energy-saving gas cooker of the present invention.

detailed description

Its preferred specific implementation is shown in Figure 1, including a pot 1, a furnace body 2, regenerative burners 3A and 3B, regenerators 4A and 4B, gas flow control valves 5A and 5B, and a reversing control valve 6. Temperature control and adjustment devices 7A and 7B, induced draft fan 11, and flue exhaust duct 12.

The combustion air at normal temperature enters the regenerator 4A through the reversing valve 6 and the low-temperature air inlet 8 to absorb heat and generate high-temperature air above 600°C. As combustion air, it is sent to the combustion chamber in the stove body 2 to participate in combustion, and the gas passes through the gas control valve. 5A enters, is ignited by the burner 3A and burns in the combustion chamber, and the pot body 1 is heated. The heating temperature of the pot body can be controlled by the temperature control regulator 7A. At this time, the burner 3B and the gas control valve 5B are closed. After combustion, high-temperature flue gas above 900°C is produced, and then enters the regenerator 4B through the high-temperature flue gas outlet, and generates low-temperature flue gas at a temperature of 150-200°C after being absorbed by the heat-absorbing regenerator 4B. Under the action of the fan 11, the low-temperature flue gas passes through the outlet 9 and the reversing valve 6 and enters the exhaust duct 12 to be discharged. After the reversing action of the reversing valve 6, the low-temperature flue gas outlet 9 is used as the low-temperature air inlet, and the low-temperature air inlet 8 is used as the low-temperature flue gas outlet, the burner 3A and the gas control valve 5A are closed, and the burner 3B and the gas control valve 5B are closed. Open. The normal temperature combustion-supporting air enters the regenerator 4B through the reversing valve 6 and enters the combustion chamber after absorbing heat in the regenerator 4B to prepare for combustion. The gas enters through the gas control valve 5B, is ignited by the burner 3B and burns in the combustion chamber. Body heating temperature can be controlled by temperature control regulator 7B. The high-temperature flue gas generated by combustion enters the regenerator 3A and releases heat, and the temperature drops to 150-200°C, and is discharged through the low-temperature flue gas outlet. After that, the above process is repeated under the control of the reversing device.

The cooker is directly connected with the furnace body to make the whole cooker fully enclosed.

The interior of the furnace body constitutes a combustion chamber, and burners are installed on the wall of the furnace body. The furnace body is equipped with at least one pair of burners, and may be provided with multiple pairs of burners.

The high-temperature combustion-supporting air inlet is connected to a regenerator, and the regenerator is connected to a normal-temperature combustion-supporting air inlet and a low-temperature flue gas outlet. There is a flue. On the one hand, when the hot flue gas is discharged, the waste heat of the flue gas is recovered through the heat storage chamber, which greatly improves the thermal efficiency; Multiple burners adopt reversing combustion, which eliminates local high-temperature areas in the combustion chamber and makes the temperature distribution in the combustion chamber more uniform.

The burner is provided with a high-temperature combustion-supporting air inlet and a fuel inlet, wherein the high-temperature combustion-supporting air inlet is used as a high-temperature flue gas outlet when the burner stops burning. Specifically, when the burner is burning, the high-temperature combustion-supporting air inlet is used to enter high-temperature combustion-supporting air; when the burner stops burning, the high-temperature combustion-supporting air inlet is used to discharge high-temperature flue gas.

The burner is connected to the regenerator through a high-temperature air inlet, and the regenerator is connected to a normal-temperature combustion-supporting air inlet 8 and a low-temperature flue gas outlet 9 . When reversing combustion, the normal-temperature combustion-supporting air inlet 8 is used as a low-temperature flue gas outlet, and the low-temperature flue gas outlet 9 is used as a normal-temperature combustion-supporting air inlet.

When the cooker is working, in each pair of burners, when burner A is burning and burner B is off, the air at normal temperature will become high-temperature air after being preheated by regenerator A to participate in combustion, and the temperature of the preheated high-temperature combustion-supporting air can reach Above 600°C. At the same time, when the high-temperature flue gas passes through the regenerator B, it releases heat, and the temperature is lowered to 150-200°C before being discharged out of the regenerator. After burning for a period of time, when the temperature of regenerator B rises and the temperature of regenerator A drops to a certain value, burner A is turned off and burner B is started. The reversing device at the outlet connection is reversing, the normal temperature combustion-supporting air is preheated through the regenerator B to participate in the combustion, and the high-temperature flue gas passes through the regenerator A to release heat. The time of reversing is automatically adjusted according to the specific heat needs.

A reversing device is provided between the normal-temperature combustion-supporting air inlet and the low-temperature flue gas outlet. Specifically, the normal-temperature combustion-supporting air inlet pipe and the low-temperature flue gas discharge pipe connected to the regenerator can be designed as one pipe, and a reversing valve is set at the junction of the normal-temperature combustion-supporting air inlet and the low-temperature flue gas outlet. The low-temperature flue gas outlet is connected with an induced draft fan through a reversing valve. The low-temperature flue gas is sucked and discharged by the induced draft fan to keep the negative pressure in the furnace. The combustion air inlet at normal temperature is open, and the air is sucked into the furnace by the negative pressure in the furnace.

In the fully enclosed regenerative high-efficiency energy-saving cooker, after the high-temperature flue gas passes through the regenerator to release heat, the temperature of the flue gas can be reduced to 150-200°C.

The fully enclosed regenerative high-efficiency energy-saving cooker operates without an open flame, and the smoke generated by the regenerative combustion of the gas in the closed system is discharged through the flue, thereby providing a safer, cleaner, quieter and healthier working environment.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person of ordinary skill in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (3)

1. An energy-saving gas cooker, characterized in that: comprising a pot (1), a body of heater (2), a burner (3A and 3B), a regenerator (4A and 4B), a reversing control valve (6), An induced draft fan (11) and a flue exhaust duct (12), the pot (1) and the body of heater (2) are integrated into one, so that the whole cooker becomes fully enclosed, and the inside of the body of heater (2) A combustion chamber is formed, and burners (3A and 3B) and regenerators (4A and 4B) are installed in pairs on the wall of the furnace body (2). The inlets are connected, and the regenerators (4A and 4B) are respectively connected with a normal temperature combustion air inlet (8) and a low temperature flue gas outlet (9). The flue gas outlet, the low-temperature flue gas outlet (9) can also be used as a normal-temperature combustion-supporting air inlet, and the reversing control valve (6) is set between the normal-temperature combustion-supporting air inlet (8) and the low-temperature flue gas outlet (9) , the low-temperature flue gas outlet (9) is connected with a flue exhaust duct (12), and the cooker is provided with temperature control and adjustment devices (7A and 7B). 2. The energy-saving gas cooker according to claim 1, characterized in that: the furnace body (2) is provided with multiple pairs of burners (3A and 3B). 3. The energy-saving gas cooker according to any one of claims 1-2, characterized in that the burners (3A and 3B) are connected to gas through gas control valves (5A and 5B).