Gas wall-hanging stove capable of preventing gas leakage

Abstract

The utility model discloses a fuel gas wall-hanging stove capable of preventing fuel gas leakage, which is characterized in that a fuel gas sensor in the wall-hanging stove can detect the fuel gas leakage in time, and once the fuel gas leakage is detected, an emergency cut-off valve quickly cuts off the fuel gas supply, so that the fuel gas is prevented from further leaking, and accidents such as explosion and poisoning are avoided; meanwhile, the alarm gives an alarm to remind a user to take measures in time, and life and property safety is guaranteed. In the aspect of energy conservation, the energy-saving bin communicates with the combustion cavity through the first smoke outlet pipe, high-temperature smoke generated by combustion enters the air outlet cavity through the heat exchange pipe and the second smoke outlet pipe, in the process, the high-temperature smoke transmits heat to normal-temperature air in the energy-saving bin, excessive heat loss during combustion is avoided, and the energy utilization rate is increased. In addition, the air outlet cavity and the air inlet cavity are connected with the turbine and the pressurizing wheel through the driving shaft, high-temperature flue gas pushes the turbine to rotate, the pressurizing wheel is driven to pressurize air entering the air supply pipeline, the air and the fuel gas are mixed more sufficiently, combustion is more complete, and energy consumption is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas wall-hung boiler technology, specifically to a gas wall-hung boiler that prevents gas leakage. Background Technology

[0002] Gas-fired wall-hung boilers are a common type of household heating equipment that heats water by burning gas, providing warmth and hot water to homes. However, gas leaks pose a potential safety hazard during use. Gas leaks not only waste energy but can also cause serious accidents such as explosions and poisoning, threatening the lives and property of users.

[0003] According to patent publication number CN207527857U, a gas leak-proof wall-hung boiler includes a boiler body, an internal water tank, a circulating water pump at one end of the water tank, a three-way valve on one side of the water tank, a hot water heat exchanger on one side of the three-way valve, an exhaust fan on one side of the hot water heat exchanger, a combustion chamber at the top of the exhaust fan, and a heat exchanger at the top of the combustion chamber. The water tank, circulating water pump, three-way valve, hot water heat exchanger, and heat exchanger are all connected by water pipes. A gas-sensitive sensor is also installed on the inner wall of the boiler body. This gas leak-proof wall-hung boiler uses a gas-sensitive sensor inside the boiler body to monitor the gas concentration inside the boiler in real time. When the gas concentration inside the boiler body exceeds a specified value, the gas-sensitive sensor triggers an alarm, alerting people in the room to inspect and repair the boiler, thus preventing gas leaks from endangering their safety.

[0004] The shortcomings of the above-mentioned device are: when the gas concentration is detected to be higher than the specified value during use, it only alerts the people in the room to carry out maintenance by sounding the alarm. However, the gas is still leaking, which can easily lead to an explosion. During use, the high-temperature flue gas generated by combustion is not fully utilized, resulting in low energy efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a gas-fired wall-hung boiler that prevents gas leakage, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas-fired wall-hung boiler with gas leakage prevention, comprising a boiler body, a combustion chamber inside the boiler body, a heat exchanger installed at the top of the combustion chamber, an energy-saving compartment fixedly installed on the side of the boiler body, an alarm installed at the top of the boiler body, an air supply pipe installed at the bottom of the combustion chamber on one side of the energy-saving compartment, a gas supply pipe installed at the bottom of the combustion chamber on the other side of the combustion chamber, the gas supply pipe passing through the boiler body and having an emergency shut-off valve installed thereon, and a gas sensor installed at the bottom inside the energy-saving compartment, the gas sensor being electrically connected to the emergency shut-off valve and the alarm respectively.

[0007] As a preferred technical solution of this utility model, a first smoke outlet pipe is fixedly installed on the top of the energy-saving chamber. The first smoke outlet pipe penetrates into and connects to the combustion chamber. Multiple sets of heat exchange pipes are fixedly installed below the first smoke outlet pipe and are interconnected. A second smoke outlet pipe is fixedly installed below the heat exchange pipes and is interconnected. The bottom of the second smoke outlet pipe is connected to the air outlet chamber set inside the energy-saving chamber.

[0008] As a preferred technical solution of this utility model, the energy-saving chamber is provided with an air inlet chamber below the air outlet chamber. The air outlet chamber and the air inlet chamber pass through each other and are rotatably mounted by a bearing. The drive shaft is fixedly mounted with a turbine inside the air outlet chamber and with a booster wheel inside the air inlet chamber.

[0009] As a preferred embodiment of this utility model, the top of the air outlet cavity is connected to the outside of the energy-saving chamber through a third smoke outlet pipe, the side wall of the air inlet cavity is connected to an air supply pipe, the bottom of the air inlet cavity is connected to the energy-saving chamber through a first air inlet, and the upper side wall of the energy-saving chamber is connected to a second air inlet.

[0010] As a preferred embodiment of this utility model, a mixing chamber is fixedly installed above the air supply pipe and the gas supply pipe and is interconnected by a through hole, and a grate is fixedly installed above the mixing chamber and is interconnected by a through hole.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) The gas sensor is installed at the bottom inside the energy-saving compartment and can detect whether the gas is leaking in time. When the gas leak is detected, the gas sensor is electrically connected to the emergency shut-off valve and the alarm respectively, which can quickly cut off the gas supply of the gas supply pipeline to prevent further gas leakage and avoid safety accidents such as explosion and poisoning caused by gas leakage. At the same time, once the gas leak is detected, the alarm will sound an alarm to remind the user to take timely measures to protect the user's life and property safety.

[0013] (2) The energy-saving chamber is connected to the combustion chamber through the first flue pipe. The high-temperature flue gas generated by combustion enters the first flue pipe, then passes through multiple sets of heat exchange pipes and the second flue pipe, and finally enters the exhaust chamber. In this process, the high-temperature flue gas transfers heat to the room temperature air in the energy-saving chamber, causing its temperature to rise. Therefore, during combustion, excessive heat loss will be avoided, ensuring that most of the heat generated by combustion is used for heating, improving energy utilization and reducing energy waste.

[0014] (3) The exhaust chamber and the intake chamber are connected by a drive shaft to the turbine and the booster wheel. The high-temperature flue gas drives the turbine to rotate in the exhaust chamber, and the turbine drives the booster wheel on the drive shaft to rotate in the intake chamber, thereby boosting the air entering the air supply pipe. The boosted air can mix more fully with the gas, making the combustion more complete, further improving the energy utilization efficiency and reducing energy consumption. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall cross-section of a gas-fired wall-mounted boiler designed to prevent gas leakage, according to an embodiment of the present utility model.

[0017] Figure 2 According to this utility model Figure 1 Schematic diagram of the structure at point A;

[0018] Figure 3 According to this utility model Figure 1 A schematic diagram of the structure at point B.

[0019] Figure label:

[0020] 1. Boiler body; 2. Combustion chamber; 3. Heat exchanger; 4. Energy-saving chamber; 5. Alarm; 6. Air supply pipe; 7. Gas supply pipe; 8. Emergency shut-off valve; 9. Gas sensor; 10. First flue pipe; 11. Heat exchange pipe; 12. Second flue pipe; 13. Gas outlet chamber; 14. Air inlet chamber; 15. Drive shaft; 16. Turbine; 17. Booster wheel; 18. Third flue pipe; 19. First air inlet; 20. Second air inlet; 21. Mixing chamber; 22. Grate. Detailed Implementation

[0021] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:

[0022] Please see Figure 1-3 According to an embodiment of the present invention, a gas-fired wall-mounted boiler with gas leakage prevention includes a boiler body 1, a combustion chamber 2 inside the boiler body 1, a heat exchanger 3 installed on the top of the combustion chamber 2, an energy-saving chamber 4 fixedly installed on the side of the boiler body 1, an alarm 5 installed on the top of the boiler body 1, an air supply pipe 6 installed at the bottom of the combustion chamber 2 on one side of the energy-saving chamber 4, a gas supply pipe 7 installed at the bottom of the other side of the bottom of the combustion chamber 2, the gas supply pipe 7 passing through the boiler body 1 and having an emergency shut-off valve 8 installed thereon, and a gas sensor 9 installed at the bottom inside the energy-saving chamber 4, the gas sensor 9 being electrically connected to the emergency shut-off valve 8 and the alarm 5 respectively.

[0023] The main body 1 of the wall-hung boiler serves as the supporting foundation for the entire gas-fired wall-hung boiler, housing all components. The combustion chamber 2 provides space for gas combustion. The heat exchanger 3 performs heat exchange. When the gas sensor 9 detects a gas leak, the alarm 5 sounds an alarm. When the gas sensor 9 detects a gas leak, the emergency shut-off valve 8 quickly cuts off the gas supply.

[0024] In this embodiment, a first smoke outlet pipe 10 is fixedly installed on the top of the energy-saving chamber 4. The first smoke outlet pipe 10 penetrates into and connects to the combustion chamber 2. Multiple sets of heat exchange pipes 11 are fixedly installed below the first smoke outlet pipe 10 and are interconnected. A second smoke outlet pipe 12 is fixedly installed below the heat exchange pipes 11 and is interconnected. The bottom of the second smoke outlet pipe 12 is connected to the air outlet chamber 13 set inside the energy-saving chamber 4.

[0025] The first flue pipe 10 guides the high-temperature flue gas generated by combustion into the energy-saving chamber 4. The heat exchange pipe 11 facilitates heat exchange between the high-temperature flue gas and the ambient temperature air inside the energy-saving chamber 4. The second flue pipe 12 guides the heat-exchanged flue gas to the exhaust chamber 13. The exhaust chamber 13 receives the heat-exchanged flue gas.

[0026] In this embodiment, the energy-saving chamber 4 is provided with an air inlet chamber 14 below the air outlet chamber 13. The air outlet chamber 13 and the air inlet chamber 14 pass through each other and are rotatably mounted by a bearing. The turbine 16 is fixedly mounted in the air outlet chamber 13, and the booster wheel 17 is fixedly mounted in the air inlet chamber 14.

[0027] The intake chamber 14 provides space for air pressurization. The drive shaft 15 connects the turbine 16 and the booster wheel 17, transmitting power. The turbine 16 is driven to rotate by the high-temperature flue gas. The booster wheel 17 rotates under the drive of the turbine 16, pressurizing the air entering the air supply duct 6.

[0028] In this embodiment, the top of the air outlet chamber 13 is connected to the outside of the energy-saving chamber 4 through the third smoke outlet pipe 18, the side wall of the air inlet chamber 14 is connected to the air supply pipe 6, the bottom of the air inlet chamber 14 is connected to the first air inlet 19, and the energy-saving chamber 4 is connected to the energy-saving chamber 4 through the second air inlet 20 on the upper side wall of the energy-saving chamber 4.

[0029] The third exhaust pipe 18 discharges the treated flue gas. The first air inlet 19 supplies air to the air intake chamber 14. The second air inlet 20 supplies air to the energy-saving chamber 4.

[0030] In this embodiment, a mixing chamber 21 is fixedly installed above the air supply pipe 6 and the gas supply pipe 7 and is interconnected by through holes. A grate 22 is fixedly installed above the mixing chamber 21 and is interconnected by through holes.

[0031] The mixing chamber 21 ensures thorough mixing of air and fuel gas. The grate 22 guides the mixed fuel gas-air mixture into the combustion chamber 2.

[0032] In practical application, air first enters the energy-saving chamber 4 through the second air inlet 20, then enters the air intake chamber 14 through the first air inlet 19, and then enters the air supply pipe 6. Gas flows in from the gas supply pipe 7. Before entering the combustion chamber 2, the gas and air are mixed in the mixing chamber 21 through openings to ensure thorough and uniform mixing. The mixed gas-air mixture enters the combustion chamber 2 through openings on the grate 22, where it is burned. The heat generated by combustion is exchanged through the heat exchanger 3 to provide the user with the required heat energy. The high-temperature flue gas generated by combustion enters the energy-saving chamber 4 through the first flue pipe 10. The first flue pipe 10 guides the high-temperature flue gas to multiple sets of heat exchange tubes 11. In the heat exchange tubes 11, the high-temperature flue gas exchanges heat with the ambient temperature air in the energy-saving chamber 4, raising the temperature of the ambient temperature air and avoiding excessive heat loss during combustion, thus improving energy utilization. After heat exchange, the flue gas is guided to the exhaust chamber 13 through the second exhaust pipe 12. The high-temperature flue gas entering the exhaust chamber 13 drives the turbine 16 to rotate. The turbine 16 drives the booster wheel 17 located in the intake chamber 14 to rotate through the drive shaft 15. The booster wheel 17 pressurizes the air entering the air supply pipe 6, allowing the pressurized air to mix more fully with the gas, thus making the combustion more complete and further improving energy utilization efficiency. Finally, the flue gas is discharged outside the energy-saving chamber 4 through the third exhaust pipe 18 at the top of the exhaust chamber 13. During the entire operation, once the gas sensor 9 detects a gas leak, it will immediately send signals to the emergency shut-off valve 8 and the alarm 5 respectively. The emergency shut-off valve 8 quickly cuts off the gas supply to the gas supply pipe 7 to prevent further gas leakage and avoid safety accidents such as explosions and poisoning caused by gas leaks. The alarm 5 sounds an alarm to remind the user to take timely measures to protect the user's life and property safety.

[0033] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas-fired wall-mounted boiler with gas leakage prevention, characterized in that, The boiler includes a main body (1), a combustion chamber (2) inside the main body (1), a heat exchanger (3) installed on the top of the combustion chamber (2), an energy-saving chamber (4) fixedly installed on the side of the main body (1), an alarm (5) installed on the top of the main body (1), an air supply pipe (6) installed at the bottom of the combustion chamber (2) on one side of the energy-saving chamber (4), a gas supply pipe (7) installed at the bottom of the other side of the bottom of the combustion chamber (2), the gas supply pipe (7) passes through the main body (1) and is equipped with an emergency shut-off valve (8), a gas sensor (9) is installed at the bottom of the inner side of the energy-saving chamber (4), and the gas sensor (9) is electrically connected to the emergency shut-off valve (8) and the alarm (5) respectively.

2. A gas-fired wall-mounted boiler with gas leakage prevention according to claim 1, characterized in that, The first smoke outlet pipe (10) is fixedly installed on the top of the energy-saving chamber (4). The first smoke outlet pipe (10) penetrates into the combustion chamber (2) and is connected. Multiple sets of heat exchange pipes (11) are fixedly installed below the first smoke outlet pipe (10) and are connected to each other. The second smoke outlet pipe (12) is fixedly installed below the heat exchange pipes (11) and is connected to each other. The bottom of the second smoke outlet pipe (12) is connected to the air outlet chamber (13) set inside the energy-saving chamber (4).

3. A gas-fired wall-mounted boiler with gas leakage prevention according to claim 2, characterized in that, The energy-saving chamber (4) is provided with an air inlet chamber (14) below the air outlet chamber (13). The air outlet chamber (13) and the air inlet chamber (14) are connected through the middle and a drive shaft (15) is rotatably installed through a bearing. The drive shaft (15) is located inside the air outlet chamber (13) and a turbine (16) is fixedly installed. The drive shaft (15) is located inside the air inlet chamber (14) and a booster wheel (17) is fixedly installed.

4. A gas-fired wall-mounted boiler with gas leakage prevention according to claim 3, characterized in that, The top of the air outlet chamber (13) is connected to the outside of the energy-saving chamber (4) through the third smoke outlet pipe (18). The side wall of the air inlet chamber (14) is connected to the air supply pipe (6). The bottom of the air inlet chamber (14) is connected to the first air inlet (19) and the energy-saving chamber (4). The upper side wall of the energy-saving chamber (4) is connected to the second air inlet (20).

5. A gas-fired wall-mounted boiler with gas leakage prevention according to claim 3, characterized in that, The air supply pipe (6) and the gas supply pipe (7) are fixedly installed with a mixing chamber (21) and have through holes for interconnection. The mixing chamber (21) is fixedly installed with a grate (22) and has through holes for interconnection.

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