CN201014441Y - Gas cooker waste heat thermal energy power generation and air-fuel ratio automatic stabilization device - Google Patents

Abstract

The utility model discloses a gas cooker waste heat thermal energy power generation device and an automatic air-fuel ratio stabilization device, which comprises a burner (2), a gas guide pipe (1) connecting the burner (2) and a gas source, and a gas cooker electrical system (5 ), one end of the heat collection block (3) is in close contact with the shell of the burner (2), and the other end is closely connected with the hot end of the semiconductor generator (4), and the semiconductor generator (4) The cold end is closely connected with the radiator (6); the semiconductor generator (4) is provided with a power storage device and is electrically connected with the gas stove power system (5). The utility model uses the residual heat of the gas cooker to generate electricity and automatically stabilizes the ratio of air and gas, and transforms the electronic ignition and safety protection system of the gas cooker into a "passive" system that does not require external power supply; Stable generation of incomplete combustion exhaust gas pollution and fuel waste makes the use of gas cookers more energy-saving, environmentally friendly, safe and convenient.

Description

Gas cooker waste heat thermal energy power generation and air-fuel ratio automatic stabilization device

technical field

The utility model relates to a gas cooker waste heat utilization power generation and air-fuel ratio automatic stabilization device.

Background technique

With the improvement of people's living standards, gas cookers have entered thousands of households. At the same time, due to the full launch of my country's West-East Gas Transmission Project, the popularity of gas cooker products has also continued to increase. The main structure of the currently used gas cooker is that there is a burner on the cooker body, an air duct connecting the burner and the gas source, and the electric system such as the electronic ignition system and the safety protection system. The electronic ignition system and the safety protection system mainly use dry batteries. powered by. But at present my country's gas cooker has the following problems: 1, electronic ignition system and safety protection system are mainly powered by dry batteries, which have limited power and short service life, so they must be replaced regularly. Huge environmental pollution. 2. During the working process of the traditional gas cooker, since the actual gas supply remains unchanged (users rarely fine-tune the size of the gas valve after turning on the gas cooker), the fresh air entering the burner is reduced due to the heating effect of the air inlet. Expansion reduces the ratio of fresh air and gas, resulting in incomplete combustion, resulting in exhaust gas pollution and fuel waste. 3. The average fuel heat utilization rate is only 55%, and the low fuel heat utilization rate has caused serious energy waste and environmental pollution.

Utility model content

The technical problem to be solved by the utility model is to overcome the above-mentioned defects of the prior art, and provide a method of generating electricity by using the waste heat of the gas cooker and automatically stabilizing the ratio of gas and air, so that the electronic ignition system and the safety protection system of the gas cooker become unnecessary. The "passive" system that provides electric energy from the outside; and the waste heat thermal energy generation and air-fuel ratio automatic stabilization device of the gas cooker to reduce the exhaust gas pollution and fuel waste caused by the incomplete combustion of the gas cooker due to the air-fuel ratio that cannot be automatically stabilized.

In order to solve the above technical problems, the utility model provides a gas cooker waste heat thermal power generation device and an automatic air-fuel ratio stabilization device, including a burner, an air guide pipe connecting the burner and the gas source, and a gas cooker power system. One end of the heat collection block is connected to the The shell of the burner is in close contact, and the other end is closely connected with the hot end of the semiconductor generator, and the cold end of the semiconductor generator is closely connected with the radiator; the semiconductor generator is provided with an electric storage device and is connected with the The gas cooker is electrically connected to the electrical system.

As an improvement of the utility model, a closely connected gas heater is provided between the cold end of the semiconductor generator and the radiator, and the gas inlet pipe of the gas heater is connected to the gas source. The outlet pipe of the gas heater is connected with the burner through an air guide pipe.

The working principle of the gas cooker waste heat thermal energy power generation and air-fuel ratio automatic stabilization device adopting the above-mentioned technical scheme is as follows:

1. Principle of waste heat thermal power generation:

A heat collecting block is installed at the lower part of the burner to absorb the heat energy generated by the burner and transfer the heat energy to the hot end of the semiconductor generator. The cold end of the semiconductor generator heats the gas to be burned through the gas heater and dissipates heat to the atmosphere through the radiator. The gas to be burned and the atmosphere fully absorb the heat energy transferred from the hot end of the semiconductor generator, so that the hot end of the semiconductor generator The temperature difference with the cold end becomes larger, so that the semiconductor generator generates electric energy externally, and the electric energy charges the battery of the gas cooker through the current limiting circuit, so that the electronic ignition system and safety protection system of the gas cooker become a "no need for external power supply". source" system.

2. Principle of automatic air-fuel ratio stabilization:

When the gas to be burnt passes through the heater, it absorbs the heat energy of the cold end of the semiconductor generator and expands; at the same time, the fresh air also absorbs heat energy and expands when it passes through the gas channel of the gas cooker. As long as the heating channel and temperature of the gas to be burned are reasonably designed, the Its heating expansion rate is equal to that of fresh air, which can automatically stabilize the air-fuel ratio of the burner.

Since the energy for generating electricity and stabilizing the air-fuel ratio above comes from the waste heat of the gas stove, after removing the waste heat of the gas stove, the temperature of the gas stove can be lowered, so the system also has the function of relatively increasing the intake of fresh air, further improving the gas consumption. stove thermal efficiency.

To sum up, the utility model is an energy-saving, environment-friendly, easy-to-use, simple-structured, and reliable gas cooker waste heat thermal energy power generation device and an automatic air-fuel ratio stabilization device.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the improved structure of the utility model;

Fig. 3 is a structural schematic diagram of the utility model gas heater.

Detailed ways

Embodiment one of the present invention is improved on the basis of the existing gas stove, referring to Fig. 1, a heat collection block 3 is installed on the gas stove burner 2; one end of the heat collection block is in close contact with the shell of the burner 2, and the other One end is closely connected with the hot end of the semiconductor generator 4 , and the cold end of the semiconductor generator 4 is closely connected with the radiator 6 ;

Referring to Fig. 1, the heat collection block 3 absorbs the waste heat heat energy of the burner 2 during combustion, and transfers the heat energy to the hot end of the semiconductor generator 4; the cold end of the semiconductor generator 4 emits heat to the atmosphere through the radiator 6, and the atmosphere Sufficiently absorb the heat energy transferred from the hot end of the semiconductor generator 4, so that the temperature difference between the hot end and the cold end of the semiconductor generator 4 becomes larger, so that the semiconductor generator 4 generates electric energy externally, and the electric energy passes through the current limiting circuit to the gas stove. The electrical storage device is charged, so that the electronic ignition system and safety protection system of the gas cooker become a "passive" system that does not require external power supply.

Embodiment 2 of the present invention is improved on the basis of Embodiment 1. Referring to FIG. 2 and FIG. 3 , a heat collection block 3 is installed on the gas stove burner 2; one end of the heat collection block is in close contact with the shell of the burner 2 , the other end is closely connected with the hot end of the semiconductor generator 4, the cold end of the semiconductor generator 4 is closely connected with the gas heater 7; the gas heater 7 is closely connected with the radiator 6, and the gas inlet pipe of the gas heater 7 is connected with the gas source Connect, the gas outlet pipe of the gas heater 7 is connected with the burner 2 through the gas pipe 1, and the semiconductor generator 4 is provided with a power storage device and is electrically connected with the gas stove power system 5.

Referring to Fig. 2 and Fig. 3, the heat collection block 3 absorbs the waste heat heat energy when the burner 2 burns, and transfers the heat energy to the hot end of the semiconductor generator 4; the cold end of the semiconductor generator 4 is heated by a gas heater 7 to be Burning gas and dissipating heat to the atmosphere through the radiator 6, the gas to be burned and the atmosphere fully absorb the heat energy transferred from the hot end of the semiconductor generator 4, so that the temperature difference between the hot end and the cold end of the semiconductor generator 4 becomes larger, so that The semiconductor generator 4 generates electric energy externally, and the electric energy charges the battery of the gas cooker through the current-limiting circuit, so that the electronic ignition system and safety protection system of the gas cooker become a "passive" system that does not need external power supply.

At the same time, when the gas to be burnt passes through the heater 7, it absorbs the heat energy of the cold end of the semiconductor generator 4 and expands; and the fresh air also absorbs heat energy and expands when it passes through the stove head airway of the gas cooker, as long as the heating channel of the gas to be burned is reasonably designed And temperature, so that its heating expansion rate is equal to that of fresh air, the air-fuel ratio of the burner can be automatically stabilized. Thereby reducing exhaust gas pollution and fuel waste caused by incomplete combustion due to the air-fuel ratio of the gas cooker cannot be automatically stabilized.

Since the energy for generating electricity and stabilizing the air-fuel ratio above comes from the waste heat of the gas stove, after removing the waste heat of the gas stove, the temperature of the gas stove can be lowered, so the system also has the function of relatively increasing the intake of fresh air, further improving the gas consumption. stove thermal efficiency.

Claims (2)

1. A gas cooker waste heat thermal energy power generation and air-fuel ratio automatic stabilization device, comprising a burner (2), a gas guide pipe (1) connecting the burner (2) and a gas source, and a gas cooker electrical system (5), its The feature is that one end of the heat collecting block (3) is in close contact with the shell of the burner (2), and the other end is closely connected with the hot end of the semiconductor generator (4), and the cold end of the semiconductor generator (4) The terminal is closely connected with the radiator (6); the semiconductor generator (4) is provided with a power storage device and is electrically connected with the gas stove power system (5). 2. The device for generating waste heat thermal energy and automatically stabilizing the air-fuel ratio of a gas cooker according to claim 1, characterized in that: a device is provided between the cold end of the semiconductor generator (4) and the radiator (6). There is a gas heater (7) closely connected, the inlet pipe of the gas heater (7) is connected to the gas source, and the gas outlet pipe of the gas heater (7) is connected to the Burner (2) connection.

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