through-burning head

Abstract

The application discloses a through bottom fire head. The through bottom fire head comprises a burner, a gas pipe, an air inlet pipe, a pressurized gas pipe and a nozzle. The burner has a combustion cavity and a preheating cavity. The gas pipe and the air inlet pipe are communicated with the combustion cavity. The nozzle is located at the air outlet end of the combustion cavity. The preheating cavity is communicated with the air outlet end of the combustion cavity. The pressurized gas pipe is communicated with the preheating cavity. The gas pipe is used for supplying fuel to the combustion cavity. The air inlet pipe is used for supplying oxygen to the combustion cavity. The pressurized gas pipe is used for supplying oxygen to the preheating cavity. The preheating cavity is used for absorbing the heat of the combustion cavity and preheating the oxygen from the pressurized gas pipe. The preheated oxygen enters the combustion cavity to assist combustion. The through bottom fire head can keep the through bottom hole as a small hole, thereby hindering the upward flow of the gas in the glass tube and reducing the probability of the metal oxide being brought to the low-temperature part to condense, so that the water resistance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low borosilicate control glass bottle processing, in particular to a bottom-piercing fire head. BACKGROUND

[0002] At present, the domestic control antibiotic bottle is still mainly low borosilicate, and the water resistance of the low borosilicate control antibiotic bottle is prone to exceed the standard. The ordinary bottom-piercing fire head has low combustion speed, and the bottom is pierced by the temperature of the flame and the residual temperature of the previous process. After the bottom is pierced, a small hole cannot be formed due to the surface tension of the glass, and the hot gas flow in the glass pipe rises, which brings the metal oxides volatilized in the glass at high temperature to a place with relatively low temperature and condenses, thereby affecting the water resistance of the glass. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a high-speed and high-pressure bottom-piercing fire head.

[0004] To solve the above problems, the present application provides a bottom-piercing fire head, which comprises a burner, a gas pipe, an air inlet pipe, a pressurized gas pipe and a nozzle. The burner has a combustion chamber and a preheating chamber. The gas pipe and the air inlet pipe are communicated with the combustion chamber. The nozzle is located at the gas outlet end of the combustion chamber. The preheating chamber is communicated with the gas outlet end of the combustion chamber. The pressurized gas pipe is communicated with the preheating chamber. The gas pipe is used to supply fuel to the combustion chamber. The air inlet pipe is used to supply oxygen to the combustion chamber. The pressurized gas pipe is used to supply oxygen to the preheating chamber. The preheating chamber is used to absorb the heat of the combustion chamber and preheat the oxygen from the pressurized gas pipe. The preheated oxygen enters the combustion chamber to assist combustion.

[0005] Further, the burner comprises an end cover, a combustion pipe, a connecting pipe, a shell and a fixing assembly. The connecting pipe is sleeved on the combustion pipe. The shell is sleeved on the connecting pipe. The shell and the connecting pipe form the preheating chamber. The end cover is fixed on the connecting pipe. The fixing assembly is fixed on the connecting pipe. The nozzle is fixed on the fixing assembly. The combustion pipe and the connecting pipe are both provided with flow-through holes. The preheated oxygen enters the combustion pipe from the flow-through holes.

[0006] Further, the air inlet end of the shell is provided with a mounting hole. The pressurized gas pipe is mounted in the mounting hole.

[0007] Further, the fixing assembly comprises a fixing sleeve, a nozzle shell and a temperature-resistant gasket. The fixing sleeve is arranged on the connecting pipe. The nozzle shell is fixed on the fixing sleeve. The temperature-resistant gasket is arranged between the fixing sleeve and the nozzle shell. The nozzle is fixed in the nozzle shell.

[0008] Further, the nozzle shell is provided with a nozzle chamber and a flame outlet hole communicated with the nozzle chamber.

[0009] Further, the fixed support is fixed on the shell.

[0010] Further, the gas pipe, the air inlet pipe and the pressurized gas pipe are all provided with a gas connector.

[0011] The preheating cavity of the present application is used to preheat the oxygen from the pressurized gas pipe, and the preheated oxygen enters the combustion cavity to perform secondary combustion with the incompletely combusted gas in the combustion cavity. The preheated oxygen has a higher temperature, so that a higher combustion speed can be obtained, and the secondary combustion can obtain a higher pressure. Therefore, the position of the bottoming can be delayed backward, and the bottoming can still be performed. After the bottom of the glass tube is cooled appropriately, the bottoming can be performed again to punch a small hole with a diameter of 2mm, so that the gas flow in the glass tube cannot rise smoothly, and the probability of the metal oxide being condensed in the low temperature part is reduced, so that the water resistance is improved, and the water resistance of the inner surface of the glass bottle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structure diagram of a preferred embodiment of the bottoming head of the present application.

[0013] Figure 2 is a side view of the bottoming head of the present application.

[0014] Figure 3 is Figure 1 is a partial enlarged view of A in FIG.

[0015] Figure 4 is Figure 1 is a partial enlarged view of B in FIG. DETAILED DESCRIPTION

[0016] The present application will be further described below in combination with the drawings.

[0017] As Figures 1 to 4As shown, the preferred embodiment of the primer head of the present application comprises a burner 1, a gas pipe 2, an air inlet pipe 3, a pressurized air pipe 4, a nozzle 5 and a fixing bracket 6. The burner 1 has a combustion chamber 101 and a preheating chamber 102, the gas pipe 2, the air inlet pipe 3 and the pressurized air pipe 4 are fixed on the burner 1, the gas pipe 2, the air inlet pipe 3 and the pressurized air pipe 4 are located at the air inlet end of the burner 1, the gas pipe 2 and the air inlet pipe 3 communicate with the combustion chamber 101, the preheating chamber 102 communicates with the air outlet end of the combustion chamber 101, the pressurized air pipe 4 communicates with the preheating chamber 102, the nozzle 5 is fixed on the burner 1, and the nozzle 5 is located at the air outlet end of the combustion chamber 101. The fixing bracket 6 is fixed on the shell 14, which is convenient for stabilizing the burner 1 and preventing the burner 1 from shaking. The gas pipe 2, the air inlet pipe 3 and the pressurized air pipe 4 are all provided with a gas connector 7, which is convenient for quickly connecting the corresponding gas source. The gas pipe 2 is used for supplying fuel to the combustion chamber 101, the air inlet pipe 3 is used for supplying oxygen to the combustion chamber 101, the pressurized air pipe 4 is used for supplying oxygen to the preheating chamber 102, the preheating chamber 102 is used for absorbing the heat of the combustion chamber 101 and preheating the oxygen from the pressurized air pipe 4, and the preheated oxygen enters the combustion chamber 101 to assist combustion.

[0018] The burner 1 comprises an end cover 11, a combustion pipe 12, a connecting pipe 13, a shell 14 and a fixing assembly 15, the connecting pipe 13 is sleeved on the combustion pipe 12, the shell 14 is sleeved on the connecting pipe 13, and the shell 14 and the connecting pipe 13 form the preheating chamber 102; the end cover 11 is screwed on the connecting pipe 13, and the gas pipe 2 and the air inlet pipe 3 are fixed on the end cover 11; the fixing assembly 15 is fixed on the connecting pipe 13, the nozzle 5 is fixed on the fixing assembly 15, one end of the nozzle 5 communicates with the combustion chamber 101, the other end of the nozzle 5 communicates with the outside, and the fixing assembly 15 and the end cover 11 are used for sealing the combustion pipe 12 to form the combustion chamber 101. The combustion pipe 12 and the connecting pipe 13 are both provided with flow-through holes 121, and the preheated oxygen enters the combustion pipe 12 from the flow-through holes 121. The air inlet end of the shell 14 is provided with a mounting hole, the pressurized air pipe 4 is mounted in the mounting hole, which increases the preheating time of the oxygen in the preheating chamber 102 and improves the preheating temperature of the oxygen. The two ends of the shell 14 are welded on the connecting pipe 13; the combustion pipe 12 and the nozzle are made of refractory material, such as corundum ceramic pipe, which can withstand a high temperature of 2000 degrees Celsius, the combustion pipe 12 and the shell 14 cannot be directly fixed on each other due to the difference in material, and therefore the connecting pipe 13 is used to connect the combustion pipe 12 and the shell 14. In other embodiments, the number of flow-through holes 121 can be set according to requirements, and they are generally uniformly distributed on the combustion pipe 12 and the connecting pipe 13.

[0019] The fixing assembly 15 comprises a fixing sleeve 151 arranged on the connecting pipe 13, a nozzle shell 152 fixed on the fixing sleeve 151 by bolts, and a temperature-resistant gasket 153 arranged between the fixing sleeve 151 and the nozzle shell 152, and the nozzle 5 is fixed in the nozzle shell 152. Specifically, the middle part of the nozzle shell 152 is inwardly recessed to form a mounting groove, the temperature-resistant gasket 153 is arranged in the mounting groove, and the bottom of the mounting groove of the nozzle shell 152 is provided with a nozzle cavity and a flame outlet hole 1521 communicating with the nozzle cavity, and the nozzle 5 is arranged in the nozzle cavity and is completely arranged in the nozzle shell 152, so that the nozzle 5 can be avoided to be processed, and thus the nozzle 5 can be made of high-temperature-resistant ceramic. The temperature-resistant gasket 153 is provided with a through hole, one end of the nozzle 5 communicates with the combustion chamber 101 through the through hole, and the other end of the nozzle 5 communicates with the outside through the flame outlet hole 1521. The temperature-resistant gasket 153 is used for isolating the nozzle shell 152 from the combustion pipe 12, so that the nozzle shell 152 can be made of a material with relatively low heat resistance, thereby saving cost, and the temperature-resistant gasket 153 can also fix the nozzle 5.

[0020] In use, first, ignition is performed outside the burner 1, that is, the combustible gas sprayed by the nozzle 5 is ignited, and then flame tempering is used to make the combustible gas in the combustion chamber start to burn; when the combustion chamber and the shell 14 reach a certain temperature, the pressurized gas pipe 4 starts to supply oxygen to the preheating cavity 102, the preheating cavity 102 preheats the oxygen entering the pressurized gas pipe 4, and the preheated oxygen enters the combustion chamber 101 to perform secondary combustion with the unburned gas in the combustion chamber 101.

[0021] Because the preheated oxygen has a relatively high temperature, a higher combustion speed can be obtained, and secondary combustion can obtain a higher pressure, which is twice as high as the pressure of the existing bottom-piercing head; therefore, the bottom-piercing position is delayed backward, and the glass tube can still be pierced, that is, the glass tube can be pierced after the bottom above the glass tube is appropriately cooled, or a small hole with a diameter of 2 mm can be punched to make the airflow in the glass tube not rise smoothly, the metal oxide volatilized in the glass due to high temperature flows to the low-temperature area to condense, the probability of the metal oxide being taken to the low-temperature part to condense is reduced, the water resistance is improved, and the water resistance of the inner surface of the glass bottle is improved.

[0022] The above is only an embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure, direct or indirect application in other related technical fields according to the content of the specification and drawings of the application is also within the patent protection scope of the application.

Claims

1. A primer head, characterized by: The burner comprises a burner, a gas pipe, an air inlet pipe, a pressurized gas pipe and a nozzle, the burner has a combustion chamber and a preheating chamber, the gas pipe and the air inlet pipe are communicated with the combustion chamber, the nozzle is located at the gas outlet end of the combustion chamber, the preheating chamber is communicated with the gas outlet end of the combustion chamber, the pressurized gas pipe is communicated with the preheating chamber, the gas pipe is used for supplying fuel to the combustion chamber, the air inlet pipe is used for supplying oxygen to the combustion chamber, the pressurized gas pipe is used for supplying oxygen to the preheating chamber, the preheating chamber is used for absorbing heat of the combustion chamber and preheating oxygen from the pressurized gas pipe, and the preheated oxygen enters the combustion chamber to assist combustion; the burner comprises an end cover, a combustion pipe, a connecting pipe, a shell and a fixing assembly, the connecting pipe is sleeved on the combustion pipe, the shell is sleeved on the connecting pipe, the shell and the connecting pipe jointly enclose an annular space to form the preheating chamber, the end cover is screwed on the connecting pipe, the gas pipe and the air inlet pipe are fixed on the end cover, the fixing assembly is fixed on the connecting pipe, the nozzle is fixed on the fixing assembly, one end of the nozzle is communicated with the combustion chamber, the other end of the nozzle is communicated with the outside, the fixing assembly and the end cover are used for sealing the combustion pipe to form the combustion chamber, the combustion pipe and the connecting pipe are provided with flow-through holes, and the preheated oxygen enters the combustion pipe from the flow-through holes.

2. The primer head of claim 1 wherein: The air inlet end of the shell is provided with a mounting hole, and the pressurized gas pipe is mounted in the mounting hole.

3. The primer head of claim 1 wherein: The fixing assembly comprises a fixing sleeve, a nozzle shell and a temperature-resistant gasket, the fixing sleeve is arranged on the connecting pipe, the nozzle shell is fixed on the fixing sleeve, and the temperature-resistant gasket is arranged between the fixing sleeve and the nozzle shell, and the nozzle is fixed in the nozzle shell.

4. The primer head of claim 3 wherein: The nozzle shell is provided with a nozzle chamber and a flame outlet hole communicated with the nozzle chamber.

5. The primer head of claim 1 wherein: A fixing support is further arranged, and the fixing support is fixed on the shell.

6. The primer head of claim 1 wherein: The gas pipe, the air inlet pipe and the pressurized gas pipe are all provided with a gas connector.

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