CN211502763U - Siphon type self-pressurizing flame-throwing furnace core - Google Patents
Siphon type self-pressurizing flame-throwing furnace core Download PDFInfo
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- CN211502763U CN211502763U CN201922405762.0U CN201922405762U CN211502763U CN 211502763 U CN211502763 U CN 211502763U CN 201922405762 U CN201922405762 U CN 201922405762U CN 211502763 U CN211502763 U CN 211502763U
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Abstract
The utility model discloses a siphon type self-supercharging flaming furnace core, which comprises a mixing cavity, a supercharging cavity and a constant-pressure supercharging bin, wherein the constant-pressure supercharging bin is arranged in the supercharging cavity; the constant-pressure pressurizing bin gas inlet is formed in the pressurizing cavity and is communicated with the constant-pressure pressurizing bin through a pipeline; the gas nozzles are connected to the top of the pressurizing cavity and are provided with a plurality of gas nozzles; the nozzle gas channel is arranged in the gas nozzle and communicated with the outside and the constant-pressure pressurizing bin; the gas mixing chamber is opened in the mixing chamber, and link up the mixing chamber, and gas mixing chamber quantity corresponds with gas nozzle quantity, and in the gas mixing chamber is stretched into to the gas nozzle, the gas mixing chamber upper end is the bocca. The high-speed gas jet flow is formed when gas passes through a nozzle gas channel in the gas nozzle, and the high-speed gas jet flow drives air at the siphon type oxygen increasing port to enter the gas mixing cavity, so that the oxygen supply amount in the gas mixing cavity is increased, and a larger heat value is generated.
Description
Technical Field
The utility model belongs to the gas stove field, concretely relates to hydrocone type is from pressure boost flame projecting wick.
Background
At present, the known household stove core or portable outdoor stove core is composed of a connecting pipe, a combustible gas mixing mechanism, a mixed gas burner, a stove nozzle, a stove fire cover, a flameout protection mechanism and the like, and the structure is very complex. However, in the process of practical use, because the household stove core or the portable outdoor stove core adopts zero-pressure mixed combustion, the heat value of flame during combustion is relatively small, the wind resistance during combustion is relatively poor, if wind exists during indoor or outdoor use, the combustion heat value of the flame is not only reduced, but also the flame is easily blown out by the wind because of the zero-pressure mixed combustion. Particularly, when the stove is used in a high-altitude area, the oxygen content in the air is low due to high altitude, and the heat value generated by combustion is smaller because the oxygen content in the air is too low in a stove for zero-pressure mixed combustion, so that excessive waste of a combustion gas source is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a siphon type self-pressurizing flaming furnace core which can provide more oxygen for the furnace core by utilizing siphon.
The utility model aims to realize the technical means that the siphon type self-pressurizing flaming furnace core comprises a mixing cavity and a pressurizing cavity,
the constant-pressure pressurizing bin is arranged in the pressurizing cavity;
the constant-pressure pressurizing bin gas inlet is formed in the pressurizing cavity and is communicated with the constant-pressure pressurizing bin through a pipeline;
the gas nozzles are connected to the top of the pressurizing cavity and are provided with a plurality of gas nozzles;
the nozzle gas channel is arranged in the gas nozzle and communicated with the outside and the constant-pressure pressurizing bin;
the gas mixing cavity is arranged in the mixing cavity and is communicated with the mixing cavity, the number of the gas mixing cavities corresponds to that of the gas nozzles, the gas nozzles extend into the gas mixing cavity, and the upper end of the gas mixing cavity is provided with a flame jet;
the connecting column is connected to the lower surface of the mixing cavity, and the other end of the connecting column is connected to the upper surface of the pressurizing cavity;
the siphon type oxygen increasing port is a gap between the mixing cavity and the pressurizing cavity.
Furthermore, the number of the gas nozzles and the number of the gas mixing cavities are four.
Further, the diameter of the gas mixing cavity is 20mm, and the length is 40 mm.
Further, the diameter of the gas channel of the nozzle is equal to or less than 0.8 mm.
Furthermore, a plurality of mounting screw holes are formed in the surface of the mixing cavity.
Further, the height of the connecting column is 5mm, and the diameter of the connecting column is 10 mm.
Furthermore, the gas nozzle extends into the gas mixing cavity for 3 mm.
Further, the diameter of a fuel gas inlet of the constant-pressure pressurizing bin is 6 mm.
The beneficial effects of the utility model reside in that: 1. the high-speed gas jet flow is formed when gas passes through a nozzle gas channel in the gas nozzle, and the high-speed gas jet flow drives air at the siphon type oxygen increasing port to enter the gas mixing cavity, so that the oxygen supply amount in the gas mixing cavity is increased, and a larger heat value is generated.
2. The temperature of the constant-pressure pressurizing bin rises, and secondary heat pressurization is carried out on fuel gas in the constant-pressure pressurizing bin, so that the fuel gas pressure is further increased.
3. The air at the siphon type oxygen increasing port driven by the high-speed gas jet flow cools the furnace body nearby, and the constant-pressure pressurizing bin, the gas nozzle and the gas mixing cavity are continuously cooled while the gas in the gas mixing cavity is oxygenated.
Drawings
FIG. 1 is a top view of a mixing chamber;
FIG. 2 is a cross-sectional view of a siphonic self-pressurizing flaming wick;
FIG. 3 is a schematic view of a screw hole structure;
FIG. 1, a mixing chamber; 2. a pressurizing cavity; 2-E, a gas mixing cavity; 2-F, a gas nozzle; 2-G, a siphon type oxygen increasing port; 2-H, a nozzle gas channel; 2-I, a constant-pressure pressurizing bin; 2-J, a constant pressure pressurizing bin gas inlet; 3. installing a screw hole; 4. connecting columns; 5. and a flame-throwing port.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
[ example 1 ]
As shown in fig. 1 and 2, the siphon type self-pressurizing flaming furnace core comprises a mixing cavity 1 and a pressurizing cavity 2,
the constant-pressure pressurizing bin 2-I is arranged in the pressurizing cavity 2; for containing gas.
The constant-pressure pressurizing bin gas inlet 2-J is formed in the pressurizing cavity 2 and is communicated with the constant-pressure pressurizing bin 2-I through a pipeline; the gas inlet 2-J of the constant-pressure pressurizing bin is connected with the outlet end of a gas pipeline of the control valve, and the gas is tightened in the constant-pressure pressurizing bin 2-I.
The gas nozzles 2-F are connected to the top of the pressurizing cavity 2, and the number of the gas nozzles 2-F is multiple;
the nozzle gas channel 2-H is arranged in the gas nozzle 2-G and communicated with the outside and the constant-pressure pressurizing bin 2-I;
the fuel gas in the constant pressure pressurizing bin 2-I forms high-speed fuel gas jet flow through a nozzle fuel gas channel 2-H in the fuel gas nozzle 2-F to be upwards ejected.
The gas mixing cavity 2-E is opened in the mixing cavity 1 and penetrates through the mixing cavity 1, the number of the gas mixing cavities 2-E corresponds to that of the gas nozzles 2-G, the gas nozzles 2-G extend into the gas mixing cavity 2-E, and the upper ends of the gas mixing cavities 2-E are provided with fire nozzles 5;
the gas mixing cavity 2-E penetrates through the whole mixing cavity 1 from top to bottom, the gas mixing cavity 2-E corresponds to the gas nozzles 2-F one by one, one gas mixing cavity 2-E is correspondingly arranged above each gas nozzle 2-F, and gas sprayed out of the gas nozzles 2-F enters the gas mixing cavity 2-E. The opening at the upper end of the gas mixing cavity 2-E is a fire nozzle 5.
The connecting column 4 is connected to the lower surface of the mixing cavity 1, and the other end of the connecting column is connected to the upper surface of the pressurizing cavity 2; the connecting column 4 is used for connecting the mixing cavity 1 and the pressurizing cavity 2, and a gap is reserved between the mixing cavity 1 and the pressurizing cavity 2, and the flowing gap is the siphon-type oxygen increasing port 2-G.
The siphon type oxygen increasing openings 2-G are gaps between the mixing cavity 1 and the pressurizing cavity 2.
Along with the upward ejection of the high-speed fuel gas jet flow, air near the siphon type oxygen increasing opening 2-G enters the fuel gas mixing cavity 2-E under the siphon action.
The gas and the air are fully mixed in the gas mixing cavity 2-E and finally are combusted outside the fire nozzle 5.
[ example 2 ]
As shown in FIGS. 1 and 2, in the embodiment 1, four gas nozzles 2-F and four gas mixing chambers 2-E are provided. Because the number of the burner ports 5 is too small, the efficiency of combustion is reduced and the combustion time is increased. An excessive number of the burner ports 5 enhances combustion efficiency, but increases energy consumption, so that gas is consumed too fast.
When the test is carried out at the altitude of 4500 meters, the four flame nozzles 5 are designed to be the best in energy consumption performance. However, the number of the gas nozzles 2-F and the gas mixing chambers 2-E is not limited to four, and the number and the size of the gas nozzles 2-F and the gas mixing chambers 2-E can be changed according to actual conditions.
The diameter of the gas mixing cavity 2-E is 20mm, and the length is 40 mm.
In order to increase the windproof performance, the mounting structure and the mounting size can ensure that the gas is sprayed into the gas mixing cavity 2-E at a high speed through the nozzle gas channel 2-H on the gas nozzle 2-F and then mixed with the air sucked through the siphon oxygen increasing port 2-G to form conical mixed gas which is sprayed out from the upper port of the gas mixing cavity 2-E in a conical form all the time, and the mixed gas and the air sucked through the siphon oxygen increasing port 2-G cannot form turbulent flow in the gas mixing cavity 2-E to cause unstable combustion. Although the mixed gas formed by the gas and the air is sprayed out of the upper opening of the gas mixing cavity 2-E in a conical shape and then is combusted outside the flame-spraying opening 5, after the test of the siphon type self-pressurization flame-spraying furnace core, 5-level strong wind of 8.0-10.7 m/s can be resisted at the highest.
The diameter of the gas channel 2-H of the nozzle is equal to or less than 0.8 mm.
The 2-J diameter of the gas inlet of the constant-pressure pressurizing bin is 6 mm.
In terms of safety in use, known stoves must be equipped with a separate flame-out protection for preventing backfiring due to pressure imbalances or flame-out or backfiring due to poor wind resistance of the stove itself. The furnace core is designed by taking the use safety into consideration at the beginning of the design. The design of the constant-pressure pressurizing bin 2-I is also used for preventing unsafe factors such as tempering and the like of the furnace core. Firstly, the diameter of a constant-pressure pressurizing bin gas inlet 2-J on the constant-pressure pressurizing bin 2-I is 6mm, and the constant-pressure pressurizing bin 2-I can play a role in safety protection no matter what the pressure of the gas entering the constant-pressure pressurizing bin 2-I through the constant-pressure pressurizing bin gas inlet 2-J is. For example, when butane gas with the lowest filling pressure is used as fuel gas for supply, the filling pressure of a butane gas bottle is 0.5MPa under normal conditions, and after the butane gas enters the constant-pressure pressurizing bin 2-I, the butane gas generates a thermal expansion effect in the constant-pressure pressurizing bin 2-I due to the temperature of about 180 ℃ of the constant-pressure pressurizing bin 2-I, so that the pressure of the butane gas is further increased. The rise value of the pressure is basically between 0.06 MPa/s and 0.08 MPa/s through tests. The pressure of the butane gas entering the constant pressure pressurizing bin 2-I or the pressure increased by the butane gas after the butane gas enters the constant pressure pressurizing bin 2-I through the thermal expansion effect can be completely released through the gas nozzle 2-F. After the fuel gas is sprayed out of the nozzle fuel gas channel 2-H through the fuel gas nozzle 2-F, no matter whether the pressure is stable or not, the tempering phenomenon can not be generated, and the explosion caused by the tempering can not be generated. When the gas in the butane gas bottle is about to be exhausted, if the pressure of the constant-pressure pressurizing bin 2-I is consistent with the atmospheric pressure, the flame can be automatically extinguished after returning to the gas nozzle 2-F after testing, because the diameter of the gas channel 2-H of the nozzle is 0.8mm or less than 0.8mm after the flame returns to the gas nozzle 2-F, the flame returned to the gas nozzle 2-F can be automatically extinguished due to insufficient oxygen supply, the tempering phenomenon can not be naturally generated, and the explosion caused by tempering can not be generated. Therefore, a separate flameout protection device is not required to be additionally arranged when the flameout protection device is used.
As shown in fig. 3, a plurality of mounting screw holes 3 are further formed on the surface of the mixing chamber 1.
The siphon type self-pressurizing flame-spraying furnace core is fixed in the furnace core of the original furnace.
The connecting column 4 is 5mm high and 10mm in diameter.
In order to ensure that the temperature of the constant-pressure pressurizing bin 2-I is basically constant at about 180 ℃, through measurement and test, the height of a siphon type oxygen increasing port inlet 2-G between the constant-pressure pressurizing bin 2-I and the E gas mixing cavity 2-I, namely the height of the connecting column 4 is determined to be 5mm, and the height of the mixed gas inlet ensures that flame can not be blown out due to too high flow velocity when large-flow mixed gas enters the gas mixing cavity 2-E and cannot play a role in cooling the bodies of the constant-pressure pressurizing bin 2-I, the gas nozzle 2-F and the gas mixing cavity 2-E due to too low flow velocity. And the height of the siphon-type oxygen increasing opening inlet 2-G between the constant-pressure pressurizing bin 2-I and the gas mixing cavity 2-E is determined to be 5mm, so that the mixed combustion ratio of combustible gas and air can be always kept at 3 no matter whether big fire or small fire is used: 1 to 2.5: 1, is also the optimal energy consumption ratio. The consumption of combustible gas is also minimal, ensuring optimal energy consumption performance, given the same thermal energy produced.
In order to achieve the purpose of carrying out secondary thermal pressurization on the combustible gas, the constant-pressure pressurization bin 2-I is located at a constant temperature of about 180 ℃, and the combustible gas with pressure is subjected to thermal pressurization, so that when the combustible gas passes through the constant-pressure pressurization bin 2-I, the combustible gas generates a thermal expansion effect in the constant-pressure pressurization bin 2-I through the constant temperature of about 180 ℃ of the constant-pressure pressurization bin 2-I, and the spraying pressure of the combustible gas is further increased. In order to keep the temperature of the constant-pressure pressurizing bin 2-I at a constant temperature of about 180 ℃ all the time,
meanwhile, the connecting column 4 is 5mm high and 10mm in diameter. Tests prove that the processing size can ensure that the temperature of the body part of the gas mixing cavity 2-E conducted to the constant-pressure pressurizing bin 2-I through the connecting column 4 in the middle of the furnace core is not too high after the furnace core is ignited for about 1 minute, but the temperature conducting time is not too long. And the temperature can be continuously increased to about 180 ℃, and the high-speed jet flow formed when the fuel gas passes through the nozzle fuel gas channel 2-H can be ensured to drive the air around the siphon type oxygen increasing port 2-G to enter the fuel gas mixing cavity 2-E and simultaneously cool the furnace body around the siphon type oxygen increasing port 2-G, so that the temperature of the furnace core constant-pressure pressurizing bin 2-I body part is basically kept constant at about 180 ℃.
The gas nozzle 2-F extends into the gas mixing cavity 2-E by 3 mm.
In order to ensure that the fuel gas is sprayed into the fuel gas mixing cavity 2-E at a high speed through the nozzle fuel gas channel 2-H on the fuel gas nozzle 2-F and then is mixed with the air sucked through the siphon oxygen increasing port 2-G to form a conical shape, and the conical shape is sprayed out from the upper port of the fuel gas mixing cavity 2-E and is combusted outside the fire nozzle 5. According to measurement and calculation tests, the novel gas nozzle 2-F is designed in such a way that the top end of the gas nozzle 2-F is reserved with the bottom end of a gas mixing cavity 2-E, which is 3mm in length, and the cross section of the gas nozzle 2-F can be seen from the figure 2, so that the top end part of the gas nozzle 2-F is hidden in the bottom end of the gas mixing cavity 2-E, and the conical mixed gas formed by mixing the gas with the air sucked through the siphon type oxygen-increasing port 2-G after the gas is sprayed into the gas mixing cavity 2-E at a high speed through the nozzle gas channel 2-H on the gas nozzle 2-F is always sprayed out of the upper port of the gas mixing cavity 2-E in a conical form and is combusted outside the fire-spraying port 5. The air sucked through the siphon oxygen increasing port 2-G can not form turbulent flow in the gas mixing cavity 2-E, so that the gas form sprayed into the gas mixing cavity 2-E by the gas nozzle 2-F is influenced. The diameter of the gas mixing cavity 2-E is determined to be 20mm, the length is determined to be 40mm, and the purpose is to ensure that the gas is sprayed into the gas mixing cavity 2-E at a high speed through a nozzle gas channel 2-H on the gas nozzle 2-F and then is mixed with air sucked through the siphon oxygen increasing port 2-G to form conical mixed gas which is sprayed out of the upper port of the gas mixing cavity 2-E in a conical form all the time and is combusted outside the fire nozzle 5.
The siphon type self-pressurizing flaming furnace core is made of stainless steel, copper or carbon steel, flame temperature of 2000 ℃ at most can be borne by all materials, through measurement and test, fuel gas is sprayed into a fuel gas mixing cavity 2-E at a high speed through a nozzle fuel gas channel 2-H on a fuel gas nozzle 2-F and then is mixed with air sucked through a siphon type oxygen increasing port 2-G, a conical shape is formed, the fuel gas is sprayed out of an upper port of the fuel gas mixing cavity 2-E and is combusted outside a flame spraying port 5 of a burner 1. No matter the flame size, the burning flame can not enter the gas mixing cavity 2-E, so the burning flame can not directly burn the siphon type self-pressurizing flaming furnace core. Under the action of cooling the furnace body around the siphon oxygen increasing port 2-G when air around the siphon oxygen increasing port 2-G enters the gas mixing cavity 2-E, the siphon self-pressurizing flaming furnace core can bear the high temperature of the highest 2000 ℃ of flaming which is made of stainless steel or metal materials such as copper and carbon steel.
[ example 3 ]
As shown in fig. 1 to 2, on the basis of embodiment 2, a method for using a siphon type self-pressurizing flaming furnace core is provided, wherein an outlet end of a gas pipeline with a control valve is connected to a gas inlet 2-J of a constant-pressure pressurizing bin, the siphon type self-pressurizing flaming furnace core is fixed at the position of the furnace core of an original furnace through a screw hole 3, the outlet end of the gas pipeline conveys gas into the constant-pressure pressurizing bin 2-I through the gas inlet 2-J of the constant-pressure pressurizing bin, the gas forms a high-speed gas jet when passing through a nozzle gas channel 2-H in a gas nozzle 2-F, the high-speed gas jet drives air at a siphon type oxygen increasing port 2-G to enter a gas mixing cavity 2-E, so that the gas is fully mixed with sucked air in the gas mixing cavity 2-E, and the mixed gas is combusted outside a flame jet port 5 after being sprayed out of the gas mixing cavity 2-E, after the mixed gas is combusted for a period of time, the temperature of the constant-pressure pressurizing bin 2-I rises, the gas in the constant-pressure pressurizing bin 2-I is subjected to secondary heat pressurization, the gas pressure is further increased, the air at the siphon type oxygen increasing port 2-G driven by the high-speed gas jet flow cools a nearby furnace body, and the constant-pressure pressurizing bin 2-I, the gas nozzle 2-F and the body of the gas mixing cavity 2-E are continuously cooled while the oxygen is increased in the gas mixing cavity 2-E. The position of the 2-I part of the constant-pressure pressurizing bin is about 1800 ℃.
If the siphon type self-pressurization flaming furnace core is used for manufacturing and producing commercial furnaces or outdoor portable furnaces, the siphon type self-pressurization flaming furnace core can be normally used only by being arranged on a furnace core support of the commercial furnaces or a support of the outdoor furnaces through the installation screw hole 3 on the furnace core and being connected with a gas pipeline with a control valve.
Claims (8)
1. A hydrocone type is from pressure boost flame projecting wick which characterized in that: comprises a mixing cavity (1) and a pressurizing cavity (2),
the constant-pressure pressurizing bin (2-I) is arranged in the pressurizing cavity (2);
the constant-pressure pressurizing bin gas inlet (2-J) is formed in the pressurizing cavity (2) and is communicated with the constant-pressure pressurizing bin (2-I) through a pipeline;
the gas nozzles (2-F) are connected to the top of the pressurizing cavity (2), and the number of the gas nozzles (2-F) is multiple;
the nozzle gas channel (2-H) is arranged in the gas nozzle (2-G) and communicated with the outside and the constant-pressure pressurizing bin (2-I);
the gas mixing cavity (2-E) is arranged in the mixing cavity (1) and penetrates through the mixing cavity (1), the number of the gas mixing cavities (2-E) corresponds to that of the gas nozzles (2-G), the gas nozzles (2-G) extend into the gas mixing cavity (2-E), and the upper end of the gas mixing cavity (2-E) is provided with a fire nozzle (5);
the connecting column (4), the connecting column (4) is connected to the lower surface of the mixing cavity (1), and the other end of the connecting column is connected to the upper surface of the pressurizing cavity (2);
the siphon type oxygen increasing port (2-G) is a gap between the mixing cavity (1) and the pressurizing cavity (2).
2. The siphonic self-supercharging flaming wick according to claim 1, wherein: four gas nozzles (2-F) and four gas mixing cavities (2-E) are arranged.
3. The siphonic self-supercharging flaming wick according to claim 1 or 2, wherein: the diameter of the gas mixing cavity (2-E) is 20mm, and the length of the gas mixing cavity is 40 mm.
4. The siphonic self-supercharging flaming wick according to claim 1, wherein: the diameter of the nozzle gas channel (2-H) is equal to or less than 0.8 mm.
5. The siphonic self-supercharging flaming wick according to claim 1, wherein: the surface of the mixing cavity (1) is also provided with a plurality of mounting screw holes (3).
6. The siphonic self-supercharging flaming wick according to claim 1, wherein: the connecting column (4) is 5mm high and 10mm in diameter.
7. The siphonic self-supercharging flaming wick according to claim 1, wherein: the gas nozzle (2-F) extends into the gas mixing cavity (2-E) by 3 mm.
8. The siphonic self-supercharging flaming wick according to claim 1, wherein: the diameter of the gas inlet (2-J) of the constant-pressure pressurizing bin is 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405762.0U CN211502763U (en) | 2019-12-27 | 2019-12-27 | Siphon type self-pressurizing flame-throwing furnace core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405762.0U CN211502763U (en) | 2019-12-27 | 2019-12-27 | Siphon type self-pressurizing flame-throwing furnace core |
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| Publication Number | Publication Date |
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| CN211502763U true CN211502763U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922405762.0U Active CN211502763U (en) | 2019-12-27 | 2019-12-27 | Siphon type self-pressurizing flame-throwing furnace core |
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| CN (1) | CN211502763U (en) |
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