Ampoule bottle packaging device for volatile liquid

Abstract

The utility model relates to the technical field of ampoule bottle packaging, in particular to an ampoule bottle packaging device for volatile liquid. The ampoule bottle packaging device comprises a base, a rotating disc and a flaming assembly, the rotating disc is rotatably arranged on the base, the flaming assembly is fixed to the base, a plurality of fixing grooves used for containing sleeves are evenly formed in the rotating disc in the circumferential direction, the sleeves are used for containing ampoule bottles to be packaged, and the ampoule bottles to be packaged are arranged in the fixing grooves. The sleeve can do circular motion relative to the rotary disc, a refrigerating medium is arranged in the rotary disc so that the temperature of volatile liquid stored in the ampoule bottle can be lower than the boiling point of the volatile liquid, and the fire spraying assembly is used for spraying out flames to package the ampoule bottle. According to the technical scheme, the packaging requirement of the ampoule bottle on volatile liquid can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of ampoule bottle packaging, in particular to an ampoule bottle packaging device for volatile liquids. Background Art

[0002] At present, in major universities, factories, research institutions, third-party testing institutions and other analysis industries, when analyzing samples and detecting substances, it is inevitable to use some liquid reference substances, and these reference substances are generally contained in ampoule bottles. The capacity of these ampoule bottles is generally 1-20 ml, and an ampoule bottle packaging device is essential for the packaging of these reference substances.

[0003] In the prior art, the types of ampoule bottle packaging devices are roughly divided into wire drawing type and fusion sealing type. However, these packaging devices will encounter a problem when packaging standard liquids, that is, the packaging of volatile liquids. When packaging volatile liquids, not only will the content be inaccurate due to the volatilization of components, but also problems such as bubbling or direct failure to seal will occur during the packaging of ampoule bottles, which will affect the success rate. Therefore, a new type of ampoule bottle packaging device is needed to solve the above technical problems. Summary of the Utility Model

[0004] The utility model provides an ampoule bottle packaging device for volatile liquids, which can meet the packaging requirements of ampoule bottles for volatile liquids.

[0005] An embodiment of the utility model provides an ampoule bottle packaging device for volatile liquids, which includes a base, a turntable and a flame spraying component. The turntable is rotatably arranged on the base, the flame spraying component is fixed on the base, and a plurality of fixing grooves for accommodating sleeves are uniformly arranged on the turntable along the circumferential direction. An ampoule bottle to be packaged is placed in the sleeve. The sleeve can move in a circular motion relative to the turntable. A refrigerating medium is arranged in the turntable to make the temperature of the volatile liquid stored in the ampoule bottle lower than its boiling point. The flame spraying component is used to spray flames to package the ampoule bottle.

[0006] Preferably, the base is provided with a rotating shaft, a rotating motor and a speed regulating knob. The rotating shaft is sleeved at the center of the turntable. The rotating motor is respectively connected to the rotating shaft and the speed regulating knob. The speed regulating knob is used to control the rotation speed of the rotating motor, so as to further control the rotation speed of the turntable through the rotating shaft.

[0007] Preferably, the base is further provided with a transmission disc, a transmission motor and a transmission belt. The transmission motor is connected to the transmission disc. The transmission belt is sleeved on the outer circumference of the transmission disc. The transmission belt is used to drive the sleeve to move in a circular motion.

[0008] Preferably, a first toothed structure is provided on the outer wall of the sleeve, and a second toothed structure is provided on the outer periphery of the transmission belt, and the first toothed structure and the second toothed structure cooperate with each other.

[0009] Preferably, a drag plate is provided at the bottom of the turntable, and a plurality of bumps for supporting the sleeve are uniformly provided on the drag plate in the circumferential direction.

[0010] Preferably, the turntable is made of stainless steel material, and the sleeve is made of stainless steel material.

[0011] Preferably, the refrigeration medium is a liquid refrigeration medium, and a refrigeration medium inlet and a refrigeration medium outlet are provided on the upper cover of the turntable. The liquid refrigeration medium can enter the turntable through the refrigeration medium inlet and be discharged from the turntable through the refrigeration medium outlet.

[0012] Preferably, the refrigeration medium is a solid refrigeration medium, and a handle is provided on the upper cover of the turntable.

[0013] Preferably, the liquid refrigeration medium is liquid nitrogen, and the solid refrigeration medium is dry ice.

[0014] Preferably, the flame spraying assembly includes a flame spraying rod, a lifting rod, a gas guide pipe and a flame arrester. The outlet of the flame spraying rod faces the bottle mouth of the ampoule bottle. The flame spraying rod is fixed on the lifting rod. The lifting rod is used to adjust the height of the flame spraying rod to adjust the height of the flame. The gas guide pipe is respectively connected with the flame spraying rod and the flame arrester. The flame arrester is used to prevent the flame from flashing back.

[0015] Beneficial effects:

[0016] The ampoule bottle packaging device for volatile liquids provided by the present invention, by providing a base, a turntable and a flame spraying assembly, the turntable is rotatably arranged on the base, the flame spraying assembly is fixed on the base, the turntable is provided with a plurality of fixing grooves for accommodating sleeves evenly in the circumferential direction, the sleeve is used for placing the ampoule bottle to be packaged, the sleeve can make a circular motion relative to the turntable, and a refrigeration medium is arranged in the turntable to make the temperature of the volatile liquid stored in the ampoule bottle lower than its boiling point, so as to reduce the volatilization of the volatile liquid, and further meet the packaging requirements of the ampoule bottle for the volatile liquid. Finally, the flame spraying assembly is used to spray flame to package the ampoule bottle. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 The front view of the ampoule bottle encapsulation device for volatile liquids provided by an embodiment of the present utility model;

[0019] Figure 2 For Figure 1 The top view of the base, turntable and transmission belt in the ampoule bottle encapsulation device shown;

[0020] Figure 3 For Figure 1 The front view of the sleeve in the ampoule bottle encapsulation device shown;

[0021] Figure 4 The sectional view of the upper cover of the ampoule bottle encapsulation device for volatile liquids provided by another embodiment of the present utility model. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that: like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", "middle", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Such as Figures 1 to 4As shown in the figure, the utility model provides an ampoule bottle encapsulation device for volatile liquids, which includes a base 1, a turntable 2 and a flame spraying component 3. The turntable 2 is rotatably arranged on the base 1, and the flame spraying component 3 is fixed on the base 1. The turntable 2 is circumferentially and evenly provided with a plurality of fixing grooves 21 for accommodating sleeves 4. The sleeve 4 is used for placing the ampoule bottle to be encapsulated. The sleeve 4 can move in a circular motion relative to the turntable 2. A refrigerating medium is arranged in the turntable 2 to make the temperature of the volatile liquid stored in the ampoule bottle lower than its boiling point. The flame spraying component 3 is used for spraying flames to encapsulate the ampoule bottle.

[0027] In this embodiment, by setting the base 1, the turntable 2 and the flame spraying component 3, the turntable 2 is rotatably arranged on the base 1, the flame spraying component 3 is fixed on the base 1, the turntable 2 is circumferentially and evenly provided with a plurality of fixing grooves 21 for accommodating sleeves 4. The sleeve 4 is used for placing the ampoule bottle to be encapsulated. The sleeve 4 can move in a circular motion relative to the turntable 2. A refrigerating medium is arranged in the turntable 2 to make the temperature of the volatile liquid stored in the ampoule bottle lower than its boiling point, so as to reduce the volatilization of the volatile liquid, and further meet the encapsulation requirements of the ampoule bottle for the volatile liquid. Finally, the flame spraying component 3 is used to spray flames to encapsulate the ampoule bottle.

[0028] It should be noted that the turntable 2 is a hollow jacket structure. By injecting a refrigerating medium into the turntable 2, the temperature of the liquid to be encapsulated in the ampoule bottle can be made lower than its boiling point, so that it will not affect the encapsulation due to volatilization during encapsulation. The sleeve 4 is an independent component, and its function is to transfer the temperature of the turntable 2 to the ampoule bottle.

[0029] In one embodiment, the base 1 is provided with a rotating shaft 22, a rotating motor 23 and a speed regulating knob 24. The rotating shaft 22 is sleeved at the center of the turntable 2. The rotating motor 23 is respectively connected to the rotating shaft 22 and the speed regulating knob 24. The speed regulating knob 24 is used to control the rotation speed of the rotating motor 23, so as to further control the rotation speed of the turntable 2 through the rotating shaft 22.

[0030] In this embodiment, the base 1 is a structural member that combines the turntable 2 and the flame spraying component 3. Its rotating shaft 22 is of a movable and detachable type, which is convenient for the disassembly of the turntable 2. The rotating motor 23 is used for the self-rotation of the turntable 2, so that the fixing grooves 21 evenly distributed on the outer circle of the turntable 2 can pass through the flame spraying port of the flame spraying component 3 at a constant speed and stay briefly at the flame spraying port. The speed regulating knob 24 is used to adjust the self-rotation speed of the turntable 2, so as to control the staying time of the ampoule bottle at the flame spraying port, and thus better encapsulation can be completed.

[0031] In one embodiment, the base 1 is further provided with a transmission disc 25, a transmission motor 26 and a transmission belt 27. The transmission motor 26 is connected to the transmission disc 25, and the transmission belt 27 is sleeved on the outer periphery of the transmission disc 25. The transmission belt 27 is used to drive the sleeve 4 to perform a circular motion. The transmission disc 25 uses the transmission motor 26 as the power to drive the transmission belt 27 to rotate uniformly, and then drives the sleeve 4 to rotate self - sufficiently.

[0032] In one embodiment, a first toothed structure 41 is provided on the outer wall of the sleeve 4, and a second toothed structure 271 is provided on the outer periphery of the transmission belt 27. The first toothed structure 41 and the second toothed structure 271 cooperate with each other. With such a setting, the ampoule bottle can rotate self - sufficiently at a uniform and stable speed, and will not slip due to the condensed water generated on the outer wall of the sleeve 4.

[0033] In one embodiment, a drag plate 5 is provided at the bottom of the turntable 2. The drag plate 5 is evenly provided with a plurality of bumps 51 for supporting the sleeve 4 along the circumferential direction.

[0034] In this embodiment, the drag plate 5 is used to support the sleeve 4 placed in the fixed groove 21. The bumps 51 are located at the positions corresponding to the centers of each fixed groove 21. Its function is to reduce the friction between it and the drag plate 5 when the transmission belt 27 drives the sleeve 4 to rotate, so that the rotation of the sleeve 4 is smoother.

[0035] In one embodiment, the turntable 2 is made of stainless steel material, and the sleeve 4 is made of stainless steel material. With such a setting, a better refrigeration effect on the liquid to be encapsulated can be ensured. Of course, other materials with excellent heat transfer performance can also be used, and specific limitations are not made here.

[0036] In one embodiment, the refrigeration medium is a liquid refrigeration medium. The upper cover 28 of the turntable 2 is provided with a refrigeration medium inlet 281 and a refrigeration medium outlet 282. The liquid refrigeration medium can enter the turntable 2 through the refrigeration medium inlet 281 and be discharged from the turntable 2 through the refrigeration medium outlet 282.

[0037] In one embodiment, the refrigeration medium is a solid refrigeration medium, and the upper cover 28 of the turntable 2 is provided with a handle 283.

[0038] In one embodiment, the liquid refrigeration medium is liquid nitrogen, and the solid refrigeration medium is dry ice. Of course, the liquid refrigeration medium and the solid refrigeration medium can also be other media that can lower the temperature of the liquid to be encapsulated below its boiling point, and specific limitations are not made here.

[0039] In one embodiment, the flame spraying assembly 3 includes a flame spraying rod 31, a lifting rod 32, an air duct 33 and a flame arrester 34. The outlet of the flame spraying rod 31 faces the mouth of the ampoule bottle. The flame spraying rod 31 is fixed on the lifting rod 32. The lifting rod 32 is used to adjust the height of the flame spraying rod 31 to adjust the height of the flame. The air duct 33 is respectively connected to the flame spraying rod 31 and the flame arrester 34. The flame arrester 34 is used to prevent the flame from flashing back.

[0040] In this embodiment, the flame spraying port of the flame spraying assembly 3 (i.e., the outlet of the flame spraying rod 31) is aligned with the mouth of the ampoule bottle. The glass at the mouth of the ampoule bottle is melted by the ejected flame to seal the ampoule bottle. The height of the flame can be adjusted by the lifting rod 32. A flame arrester 34 is provided on the air duct 33 to prevent the explosion caused by the flame flashing back.

[0041] Of course, the flame spraying assembly 3 may further include a fuel gas pipe 35 and an oxidizer pipe 36. The fuel gas pipe 35 is connected to a fuel gas source, and the oxidizer pipe 36 is connected to an oxidizer source. Among them, the fuel gas may include combustible gases such as hydrogen, natural gas, propane, etc., or may be directly connected to a hydrogen-oxygen flame melting machine. The oxidizer may include oxygen, air or other gases that can help combustion. When directly connected to a hydrogen-oxygen flame melting machine, the oxidizer pipe 36 may not be connected to an oxidizer source.

[0042] Further, the fuel gas pipe 35 and the oxidizer pipe 36 may both be provided with regulating valves and pressure gauges for controlling and adjusting the gas inlet amount and further adjusting the flame size.

[0043] Further, before encapsulating the volatile liquid, the liquid, the ampoule bottle and the liquid transfer tool need to be cooled, and the temperature is reduced to below the boiling point of the volatile liquid. Among them, the cooling methods may include cooling methods such as refrigerators, dry ice, liquid nitrogen, etc.

[0044] Further, before encapsulating the volatile liquid, first adjust the height of the flame spraying port to an appropriate position and ignite it. Then, make the refrigerating medium enter the jacket of the turntable 2 through the refrigerating medium inlet 281 to keep the turntable 2 at a low temperature, and place the sleeve 4 of the ampoule bottle into the fixing groove 21. Subsequently, place the ampoule bottle filled with the volatile liquid into the sleeve 4. Turn on the power switch of the turntable 2 and adjust the speed control knob 24 to make the turntable 2 rotate slowly, ensuring that the mouth of the ampoule bottle is just sealed and then leaves the flame. At this time, the whole device enters the working state. Among them, the cold quantity is transferred to the ampoule bottle through the refrigerating medium in the turntable 2 to keep it at a low temperature state all the time, so as to ensure that the volatile liquid will not vaporize and fly out to affect the encapsulation effect.

[0045] The following introduces two specific implementation manners:

[0046] The first

[0047] The encapsulated reference material is "isopentane (0.50% wt), n-pentane (2.00% wt), 2-methylpentane (0.50% wt), 3-methylpentane (0.10% wt), cyclopentane (balance)", the refrigerating medium is dry ice, the fuel gas is hydrogen, and the combustion-supporting agent is oxygen. The specific implementation method is as follows:

[0048] S1. First, place the reference material to be encapsulated, the pipette tip, and the ampoule bottle in the refrigerator for freezing, and the refrigerator temperature is -20°C;

[0049] S2. Take 1 sleeve 4 and place it in the fixing groove 21 on the turntable 2;

[0050] S3. Take 1 ampoule bottle and place it in the sleeve 4 corresponding to the flame nozzle as a reference, and adjust the height of the flame nozzle to the bottle mouth of the ampoule bottle through the lifting rod 32;

[0051] S4. Remove the ampoule bottle, connect hydrogen to the fuel gas inlet and adjust the pressure to 0.2 MPa, and then ignite;

[0052] S5. Then connect oxygen to the combustion-supporting agent inlet and adjust the pressure to 0.2 MPa;

[0053] S6. Connect the device to the power supply, place the ampoule bottle in the sleeve 4 again, and the ampoule bottle moves closer to the flame nozzle as the turntable 2 rotates. When the outer wall of the sleeve 4 touches the transmission belt 27, the transmission belt 27 drives the sleeve 4 to rotate, and then the ampoule bottle rotates automatically. By adjusting the pressures of hydrogen and oxygen and the speed control knob 24, make the bottle mouth of the ampoule bottle in a sealed state just when it leaves the flame;

[0054] S7. After adjusting the flame and rotation speed, remove the upper cover 28 by lifting the handle 283, then pour dry ice into the cavity in the turntable 28, and cover the upper cover 28.

[0055] S8. Place all the sleeves 4 in the fixing grooves 21 on the turntable 2;

[0056] S9. Take out the reference material, the pipette tip, and the ampoule bottle placed in the refrigerator, and immediately carry out the sub-packaging;

[0057] S10. Place the sub-packaged ampoule bottle in the sleeve 4 and start the encapsulation.

[0058] S11. After the encapsulation is completed, remove the encapsulated ampoule bottle for storage, and the encapsulation process ends;

[0059] S12. After the encapsulation is completed, there will be condensed water generated by air condensation in the turntable 2. At this time, open the upper cover 28, remove the turntable 2, and directly pour out the water.

[0060] The second

[0061] The encapsulated reference material is "isopentane (0.50% wt), n-pentane (2.00% wt), 2-methylpentane (0.50% wt), 3-methylpentane (0.10% wt), cyclopentane (balance)". The refrigerant medium is liquid nitrogen, the fuel gas is hydrogen, and the combustion-supporting agent is oxygen. The specific implementation method is as follows:

[0062] S1. First, put the reference material to be encapsulated, the pipette tip, and the ampoule bottle into the refrigerator for freezing. The temperature of the refrigerator is -20°C;

[0063] S2. Take 1 sleeve 4 and place it in the fixing groove 21 on the turntable 2;

[0064] S3. Take 1 ampoule bottle and place it in the sleeve 4 corresponding to the flame nozzle. Adjust the height of the flame nozzle to the mouth of the ampoule bottle through the lifting rod 32;

[0065] S4. Remove the ampoule bottle, connect hydrogen to the fuel gas inlet and adjust the pressure to 0.2 MPa, and then ignite;

[0066] S5. Then connect oxygen to the combustion-supporting agent inlet and adjust the pressure to 0.2 MPa;

[0067] S6. Turn on the power of the equipment and put the ampoule bottle into the sleeve 4 again. The ampoule bottle rotates with the turntable 2 and approaches the flame nozzle. When the outer wall of the sleeve 4 touches the transmission belt 27, the transmission belt 27 drives the sleeve 4 to rotate, and then the ampoule bottle rotates automatically. By adjusting the pressures of hydrogen and oxygen and the speed control knob 24, when the ampoule bottle just leaves the flame, the mouth of the ampoule bottle is in a sealed state;

[0068] S7. After adjusting the flame and rotation speed, inject liquid nitrogen into the turntable 2 through the refrigerant medium inlet 281;

[0069] S8. Put the whole sleeve 4 into the fixing groove 21 on the turntable 2;

[0070] S9. Take out the reference material, the pipette tip, and the ampoule bottle that have been put into the refrigerator, and immediately perform the sub-packaging;

[0071] S10. Place the sub-packaged ampoule bottle into the sleeve 4 and start the encapsulation;

[0072] S11. After the encapsulation is completed, remove the encapsulated ampoule bottle for storage, and the encapsulation process ends;

[0073] S12. After the encapsulation is completed, there will be condensed water in the turntable 2 due to air condensation. At this time, remove the turntable 2 and directly pour out the water through the refrigerant medium outlet 282.

[0074] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ampoule encapsulation device for volatile liquids, characterized in that, It includes a base, a turntable and a flame spraying component. The turntable is rotatably arranged on the base, and the flame spraying component is fixed on the base. A plurality of fixing grooves for accommodating sleeves are evenly arranged on the turntable in the circumferential direction. An ampoule bottle to be encapsulated is placed in the sleeve. The sleeve can move in a circular motion relative to the turntable. A refrigerating medium is arranged in the turntable to make the temperature of the volatile liquid stored in the ampoule bottle lower than its boiling point. The flame spraying component is used to spray flames to encapsulate the ampoule bottle.

2. The ampoule encapsulation device for volatile liquids according to claim 1, characterized in that, The base is provided with a rotating shaft, a rotating motor and a speed regulating knob. The rotating shaft is sleeved at the center of the turntable. The rotating motor is respectively connected with the rotating shaft and the speed regulating knob. The speed regulating knob is used to control the rotation speed of the rotating motor, so as to further control the rotation speed of the turntable through the rotating shaft.

3. The ampoule encapsulation device for volatile liquid according to claim 2, characterized in that, The base is also provided with a transmission disc, a transmission motor and a transmission belt. The transmission motor is connected with the transmission disc. The transmission belt is sleeved on the outer circumference of the transmission disc. The transmission belt is used to drive the sleeve to move in a circular motion.

4. The ampoule packaging device for volatile liquids according to claim 3, characterized in that, A first toothed structure is arranged on the outer wall of the sleeve, and a second toothed structure is arranged on the outer circumference of the transmission belt. The first toothed structure and the second toothed structure cooperate with each other.

5. The ampoule encapsulation device for volatile liquids according to claim 3, characterized in that, A drag plate is arranged at the bottom of the turntable. A plurality of bumps for supporting the sleeve are evenly arranged on the drag plate in the circumferential direction.

6. The ampoule encapsulation device for volatile liquid according to claim 1, characterized in that, The turntable is made of stainless steel material, and the sleeve is made of stainless steel material.

7. The ampoule packaging device for volatile liquids according to claim 1, characterized in that, The refrigerating medium is a liquid refrigerating medium. The upper cover of the turntable is provided with a refrigerating medium inlet and a refrigerating medium outlet. The liquid refrigerating medium can enter the turntable through the refrigerating medium inlet and be discharged from the turntable through the refrigerating medium outlet.

8. The ampoule packaging device for volatile liquids according to claim 7, characterized in that, The refrigerating medium is a solid refrigerating medium. The upper cover of the turntable is provided with a handle.

9. The ampoule encapsulation device for volatile liquids according to claim 8, characterized in that, The liquid refrigerating medium is liquid nitrogen, and the solid refrigerating medium is dry ice.

10. The ampoule encapsulation device for volatile liquids according to any one of claims 1-9, characterized in that, The flame spraying component includes a flame spraying rod, a lifting rod, a gas guide pipe and a flame arrester. The outlet of the flame spraying rod is opposite to the mouth of the ampoule bottle. The flame spraying rod is fixed on the lifting rod. The lifting rod is used to adjust the height of the flame spraying rod to adjust the height of the flame. The gas guide pipe is respectively connected with the flame spraying rod and the flame arrester. The flame arrester is used to prevent flame flashback.

Images