Gas furnace applied to double heat accumulating type crucibles

Abstract

The utility model discloses a gas furnace applied to double heat storage type crucibles, which relates to the technical field of crucible gas furnaces and comprises a gas furnace, and a fire gun component is arranged in the gas furnace. The flame gun assembly comprises two large flame guns which are arranged on the two sides of the bottom in the gas furnace respectively, a small flame gun is arranged in each large flame gun, an ignition opening is formed in one end of each small flame gun, and two ignition needles are arranged in each ignition opening. By arranging the big fire gun and the small fire gun, the small fire gun is arranged in the big fire gun, the number of independent gun bodies is reduced, the structure is simplified, space is saved, integrated design is effectively achieved, and the problems that a traditional combustion gun is complex in structure, unstable in combustion, insufficient in safety and the like are effectively solved; the method is suitable for efficient and safe operation of the double-heat-storage type crucible gas furnace.

Description

Technical Field

[0001] This utility model relates to the field of crucible gas furnace technology, specifically to a dual regenerative crucible gas furnace. Background Technology

[0002] The dual regenerative crucible gas furnace is a highly efficient and energy-saving metal smelting equipment, widely used in the casting, die casting, and heat treatment industries of non-ferrous metals (such as aluminum, copper, zinc, and their alloys). Traditional gas furnaces directly heat the crucible by burning natural gas or liquefied petroleum gas, but they suffer from problems such as low thermal efficiency, high energy consumption, and large emissions. To solve these defects, regenerative combustion technology has been introduced into the design of crucible furnaces, which improves combustion efficiency and reduces fuel consumption by recovering waste heat from flue gas.

[0003] Current gas stoves still have many areas for improvement in combustion, such as complex structure and large space occupation: each burner group needs to install two independent burners (small burner + large burner), a total of four burners, resulting in a crowded rear chamber layout and inconvenient installation and maintenance; at the same time, there are also issues with flame control coordination. The small burner and large burner are installed separately, and the flame combustion may not be synchronized, affecting combustion stability. There is also the problem of low ignition reliability. If the small burner ignites independently, and ignition fails or flame detection fails, it may lead to gas leakage or incomplete combustion, posing a safety hazard.

[0004] Based on this, a gas furnace for dual regenerative crucibles is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a gas-fired furnace with a dual regenerative crucible to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gas-fired furnace for a dual regenerative crucible includes a gas furnace, wherein a torch assembly is provided inside the gas furnace.

[0008] The firearm assembly includes two large firearms, which are respectively located on both sides of the bottom of the gas furnace. Each large firearm contains a small firearm. Each small firearm has an ignition port at one end, and two ignition needles are installed inside the ignition port. Each large firearm has a muzzle at its upper end, and an ion flame detector is installed inside the muzzle.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: a gas assembly is disposed above the flare assembly.

[0011] In one alternative: the gas assembly includes a main gas pipeline, which is a tee pipe. One end of the main gas pipeline passes through the outside of the gas furnace and is fixedly connected to a main solenoid valve. The other two ends of the main gas pipeline are symmetrically arranged and fixedly connected to a gas shut-off valve, and the output end of each gas shut-off valve is fixedly connected to a large flame gun gas pipe and a small flame gun gas pipe.

[0012] In one alternative: the lower end of the gas pipe of each large fire lance is fixedly connected to one end of the adjacent large fire lance, and the lower end of the gas pipe of each small fire lance passes through the adjacent large fire lance and is fixedly connected to one end of the corresponding small fire lance.

[0013] In one alternative: a duct assembly is provided on one side of the gas assembly.

[0014] In one alternative: the air duct assembly includes a blower, which is fixedly connected to one side of the gas furnace, and a main air duct is fixedly connected to one end of the blower. Two large fire lance air ducts and two small fire lance air ducts are symmetrically arranged on both sides of the main air duct.

[0015] In one alternative: each of the large musket air ducts is fixedly connected to one side of the adjacent large musket, and each of the small musket air ducts passes through the adjacent large musket and is fixedly connected to one end of the corresponding small musket.

[0016] In one alternative: the upper surface of the gas furnace is provided with a furnace chamber, and the upper end of each of the large fire guns is disposed through the bottom of the furnace chamber.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention features a large and a small firearm, with the small firearm integrated within the large firearm. This reduces the number of individual firearms, simplifies the structure, saves space, and effectively achieves an integrated design. Simultaneously, the small firearm directly ignites the mixed combustion gas in the large firearm, ensuring stable flame combustion and avoiding the risk of ignition failure. The flame detection of the small firearm directly controls the start and stop of the large firearm; if no flame is detected, the gas supply to the large firearm is immediately cut off, improving safety. This invention effectively addresses the problems of complex structure, unstable combustion, and insufficient safety in traditional combustion guns, and is suitable for the efficient and safe operation of dual regenerative crucible gas furnaces. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0021] Figure 3This is a schematic diagram of the firearm assembly structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of the large firearm of this utility model.

[0023] Attached diagram labels: 1. Gas furnace; 2. Furnace chamber; 3. Blower; 4. Large lance; 5. Main air duct; 6. Large lance air duct; 7. Small lance air duct; 8. Main solenoid valve; 9. Main gas pipeline; 10. Gas shut-off valve; 11. Large lance gas pipe; 12. Small lance gas pipe; 13. Small lance; 14. Ignition port; 15. Large lance muzzle. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-4 As shown, a gas furnace for use in a dual regenerative crucible includes a gas furnace 1, wherein a torch assembly is provided inside the gas furnace 1.

[0026] The firearm assembly includes two large firearms 4, which are respectively located on the bottom sides of the gas furnace 1. Each large firearm 4 contains a small firearm 13. Each small firearm 13 has an ignition port 14 at one end. The ignition port 14 contains two ignition needles, one for ignition and one for detection. Each large firearm 4 has a large firearm nozzle 15 at its upper end. An ion flame detector is installed inside the large firearm nozzle 15. The ion detector monitors the ionization current of the flame of the small firearm 13 in real time.

[0027] In this embodiment, the ignition needle inside the ignition port 14 is ignited, and the small flame gun 13 ignites the large flame gun 4 on the outside to start combustion. At this time, an ion detector is set inside the muzzle 15 of the large flame gun to detect the other ignition needle inside the ignition port 14. If a problem occurs, the corresponding gas shut-off valve 10 is closed to block combustion.

[0028] In one embodiment, such as Figure 3 As shown, a gas supply assembly is provided above the musket assembly to provide gas for the large musket 4 and the small musket 13.

[0029] In one embodiment, such as Figure 3 and 4As shown, the gas assembly includes a main gas pipe 9, which is a three-way pipe. One end of the main gas pipe 9 passes through the outside of the gas furnace 1 and is fixedly connected to a main solenoid valve 8. The other two ends of the main gas pipe 9 are symmetrically arranged and fixedly connected to a gas shut-off valve 10. The output end of each gas shut-off valve 10 is fixedly connected to a large burner gas pipe 11 and a small burner gas pipe 12. The gas in the main gas pipe 9 is transmitted to the large burner gas pipe 11 and the small burner gas pipe 12 through the gas shut-off valve 10, and then to the corresponding large burner 4 and small burner 13 through the large burner gas pipe 11 and the small burner gas pipe 12. The gas can be shut off by controlling the gas shut-off valve 10, thereby controllably selecting any large burner 4 for combustion.

[0030] In one embodiment, such as Figure 4 As shown, the lower end of each of the large fire gun gas pipes 11 is fixedly connected to one end of the adjacent large fire gun 4, and the lower end of each of the small fire gun gas pipes 12 passes through the adjacent large fire gun 4 and is fixedly connected to one end of the corresponding small fire gun 13. Gas is transmitted through the large fire gun gas pipes 11 and the small fire gun gas pipes 12.

[0031] In one embodiment, such as Figure 3 As shown, a duct assembly is provided on one side of the gas assembly to transport air.

[0032] In one embodiment, such as Figure 3 As shown, the air duct assembly includes a blower 3, which is fixedly connected to one side of the gas furnace 1. One end of the blower 3 is fixedly connected to a main air duct 5. Two large flare ducts 6 and small flare ducts 7 are symmetrically arranged on both sides of the main air duct 5. When in use, the blower 3 is started to introduce air through the main air duct 5 into the large flare ducts 6 and small flare ducts 7 respectively. Then, the air is injected into each large flare 4 and small flare 13 through the large flare ducts 6 and small flare ducts 7 respectively.

[0033] In one embodiment, such as Figure 3 As shown, each of the large musket air ducts 6 is fixedly connected to one side of the adjacent large musket 4, and each of the small musket air ducts 7 passes through the adjacent large musket 4 and is fixedly connected to one end of the corresponding small musket 13. Air is transmitted into the large musket 4 and the small musket 13 through the large musket air ducts 6 and the small musket air ducts 7.

[0034] In one embodiment, such as Figure 1 As shown, the upper surface of the gas furnace 1 is provided with a furnace chamber 2, and the upper end of each of the large fire guns 4 is installed through the bottom of the furnace chamber 2 for convenient combustion.

[0035] The above embodiment discloses a gas-fired furnace applied to a dual-regenerative crucible. During operation, a blower 3 is activated, drawing air through the main air duct 5 into the large burner duct 6 and the small burner duct 7. Air is then injected into each large burner 4 and small burner 13 via the large burner duct 6 and small burner duct 7, respectively. Gas from the main gas pipe 9 is then transmitted through a gas shut-off valve 10 to the large burner gas pipe 11 and the small burner gas pipe 12, and then to the corresponding large burner 4 and small burner 13. The gas can be shut off by controlling the gas shut-off valve 10, allowing for the controllable selection of any large burner 4 for combustion. The ignition needle inside the ignition port 14 then ignites, igniting the outer large burner 4 through the small burner 13. An ion detector is installed inside the large burner muzzle 15 to detect the other ignition needle inside the ignition port 14. If a problem is detected, the corresponding gas shut-off valve 10 is closed, stopping combustion.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A gas furnace for use in a dual regenerative crucible, comprising a gas furnace (1), wherein a fire gun assembly is provided inside the gas furnace (1); Its features are, The firearm assembly includes a large firearm (4), two of which are respectively located on the bottom sides of the gas furnace (1). Each large firearm (4) has a small firearm (13) inside, and each small firearm (13) has an ignition port (14) at one end. The ignition port (14) has two ignition needles inside. Each large firearm (4) has a large firearm muzzle (15) at the top, and an ion flame detector is provided inside the large firearm muzzle (15).

2. The gas-fired furnace for use in a dual-regenerative crucible according to claim 1, characterized in that, A gas assembly is provided above the flare assembly.

3. The gas-fired furnace for use in a dual-regenerative crucible according to claim 2, characterized in that, The gas assembly includes a main gas pipe (9), which is a three-way pipe. One end of the main gas pipe (9) is installed outside the gas furnace (1) and is fixedly connected to a main solenoid valve (8). The other two ends of the main gas pipe (9) are symmetrically arranged and fixedly connected to a gas shut-off valve (10). Each gas shut-off valve (10) is fixedly connected to a large flame gun gas pipe (11) and a small flame gun gas pipe (12) at its output end.

4. A gas-fired furnace for use in a dual-regenerative crucible according to claim 3, characterized in that, The lower end of each of the large fire gun gas pipes (11) is fixedly connected to one end of the adjacent large fire gun (4), and the lower end of each of the small fire gun gas pipes (12) passes through the adjacent large fire gun (4) and is fixedly connected to one end of the corresponding small fire gun (13).

5. A gas-fired furnace for use in a dual-regenerative crucible according to claim 2, characterized in that, A duct assembly is provided on one side of the gas assembly.

6. A gas-fired furnace for use in a dual-regenerative crucible according to claim 5, characterized in that, The air duct assembly includes a blower (3), which is fixedly connected to one side of the gas furnace (1). One end of the blower (3) is fixedly connected to a main air duct (5), and two large fire lance air ducts (6) and small fire lance air ducts (7) are symmetrically arranged on both sides of the main air duct (5).

7. A gas-fired furnace for use in a dual-regenerative crucible according to claim 6, characterized in that, Each of the large musket air ducts (6) is fixedly connected to one side of the adjacent large musket (4), and each of the small musket air ducts (7) passes through the adjacent large musket (4) and is fixedly connected to one end of the corresponding small musket (13).

8. A gas-fired furnace for use in a dual-regenerative crucible according to claim 1, characterized in that, The upper surface of the gas furnace (1) is provided with a furnace chamber (2), and the upper end of each of the large fire guns (4) is provided through the bottom of the furnace chamber (2).

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