Pulse type flame burner

Abstract

The utility model belongs to the technical field of combustors, and particularly discloses a pulse type flame combustor which comprises a combustor body, a combustion chamber and an ignition chamber, and an igniter is installed on the ignition chamber. A circulation cavity and an air entraining channel are formed in the combustor body, the combustion chamber is installed in the circulation cavity, the ignition chamber is installed on the combustor body and located above the combustion chamber, and the air entraining channel is located between the combustion chamber and the ignition chamber and communicated with the combustion chamber and the ignition chamber. Air holes communicated with each other are formed between the top wall of the circulation cavity and the air entraining channel, the ignition chamber air inlet pipe is communicated with the circulation cavity, the combustion chamber air inlet pipe is communicated with the combustion chamber, and the combustion chamber is further communicated with a sample injection pipe used for introducing a measured substance. The size of the combustor can be effectively reduced, and the combustor is miniaturized.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a pulse flame burner. Background Art

[0002] A burner is a device that sprays fuel and air in a specific pattern for mixed combustion. A pulsed flame photometer (PFPD) detects substances based on a continuous pulsed flame. The burner used to generate this pulsed flame is a pulsed flame burner. In conventional pulsed flame burners, the ignition chamber and combustion chamber are relatively dispersed, resulting in a large burner. Utility Model Content

[0003] The utility model provides a pulse flame burner, the purpose of which is to reduce the volume of the burner and miniaturize the burner.

[0004] The utility model is realized by the following technical solutions: a pulse flame burner, comprising a burner body, a combustion chamber and an ignition chamber, wherein an igniter is installed on the ignition chamber; a flow cavity and an air bleed channel are provided in the burner body, the combustion chamber is installed in the flow cavity, the ignition chamber is installed on the burner body and is located above the combustion chamber, and the air bleed channel is located between the combustion chamber and the ignition chamber and is in communication with the combustion chamber and the ignition chamber;

[0005] Interconnected air holes are provided between the top wall of the circulation cavity and the air inlet channel. The ignition chamber air inlet pipe is connected to the circulation cavity, the combustion chamber air inlet pipe is connected to the combustion chamber, and the combustion chamber is also connected to a sampling tube for introducing the substance to be tested.

[0006] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0007] In this solution, hydrogen-rich mixed air is filled into the combustion chamber through the combustion chamber air inlet pipe, the substance to be measured is filled into the combustion chamber through the sampling tube, and the hydrogen-air mixture is filled into the ignition chamber through the ignition chamber air inlet pipe. The igniter ignites, so that the flame in the ignition chamber ignites the mixed gas of the substance to be measured and the hydrogen-rich mixed air in the combustion chamber, thereby generating a flame in the combustion chamber. When in use, the ignition chamber and the gas chamber can be filled with equal proportions of gas through proportional design, so that the gases in the ignition chamber and the gas chamber are burned out at the same time, the flames are extinguished at the same time, and then gas is filled in and burned again, thereby achieving the effect of flame pulse combustion.

[0008] In this solution, the ignition chamber is located above the combustion chamber, and the ignition chamber and the combustion chamber are connected through a circulation cavity, so that the ignition chamber air inlet pipe and the combustion chamber air inlet pipe can be arranged side by side, and the gas chamber air inlet pipe fills the mixed gas into the ignition chamber through the circulation cavity. In this way, there is no need to reprocess the channel for filling gas into the ignition chamber, making the structure of the entire burner compact and simple, which can effectively reduce the volume of the burner and reduce production costs.

[0009] Furthermore, the bottom of the circulation cavity is connected to an air inlet nozzle, the top of the air inlet nozzle is connected to a lower support block, the top of the circulation cavity is connected to an upper support block, the bottom of the upper support block and the top of the lower support block are both provided with mutually facing slots, the two ends of the combustion chamber are respectively stuck in the slots of the upper support block and the lower support block, and one end of the sampling tube passes through the air inlet nozzle and the lower support block in sequence to communicate with the combustion chamber;

[0010] A central hole and a plurality of air holes are provided in the center of the upper support block. The central hole is communicated with the air inlet channel and the combustion chamber. The plurality of air holes are distributed along the circumference of the upper support block. The air holes are communicated with the flow cavity and the air inlet channel.

[0011] Beneficial effects: In this solution, the air inlet nozzle is connected to the bottom of the circulation chamber, which can not only seal the circulation chamber, but also facilitate the installation of the lower support block. In this solution, the two ends of the combustion chamber are respectively stuck in the grooves of the upper support block and the lower support block, thereby realizing the installation and fixation of the combustion chamber. This assembly method is simple.

[0012] In addition, in this solution, the center hole on the upper support block and the air duct opened on the burner body can connect the combustion chamber and the ignition chamber, which is convenient for igniting the gas in the combustion chamber to produce flames. At the same time, the multiple air holes opened on the upper support block can guide the gas entering the combustion chamber into the ignition chamber, which is convenient for ignition.

[0013] Furthermore, an annular groove is provided at the top of the upper support block, and the air hole is provided at the bottom of the annular groove.

[0014] Beneficial effect: Compared with the method of directly opening multiple air holes on the upper support block, an annular groove is opened on the upper support block in this solution, and the top of the air hole is located in the annular groove. In such a setting, when the flame generated in the ignition chamber extends downward, the flame can be extinguished when it contacts the annular groove, avoiding burning downward through the air hole. This can ensure that the ignition chamber will only ignite the mixed gas in the gas chamber through the center hole of the upper support block.

[0015] Furthermore, the air inlet nozzle is threadedly connected to the inner wall of the circulation cavity, and a sealing ring is provided between the air inlet nozzle and the bottom end of the circulation cavity.

[0016] Beneficial effects: This solution facilitates the installation and removal of the air intake nozzle, thereby facilitating the installation of the combustion chamber and the lower support block inside the circulation cavity, and when the combustion chamber needs to be replaced or repaired, the combustion chamber and the lower support block can be easily repaired, maintained and replaced by removing the air intake nozzle.

[0017] Furthermore, a sealing ring is provided between the combustion chamber and the slot of the lower support block.

[0018] Beneficial effect: Such an arrangement can ensure the airtightness of the combustion chamber.

[0019] Furthermore, the upper support block and the lower support block are both made of PEEK material, and the combustion chamber is made of quartz material.

[0020] Beneficial effects: In this solution, the overall structure of the combustion chamber and the upper and lower support blocks are all made of inert materials, which can minimize the adsorption of various adsorptive gases such as sulfides and phosphides, and avoid affecting the accuracy of substance detection.

[0021] Furthermore, the combustion chamber and the ignition chamber are arranged alternately, and the air induction channel is perpendicular to the ignition chamber and the combustion chamber and is interconnected.

[0022] Beneficial effect: In this solution, the combustion chamber and the ignition chamber are staggered, so that the gases filled into the ignition chamber and the combustion chamber do not interfere with each other. If the two are set vertically opposite each other, it is easy to make the design of the gas path leading to the ignition chamber and the combustion chamber more complicated. In this solution, the two can be connected only through the air duct, which is convenient for ignition.

[0023] Furthermore, an air intake passage communicating with the combustion chamber is provided inside the air intake nozzle, and one end of the combustion chamber air intake pipe penetrates into one side of the air intake nozzle and communicates with the air intake passage of the air intake nozzle.

[0024] Beneficial effects: In this solution, the gas chamber intake pipe can enter the combustion chamber through the intake channel on the intake nozzle, providing the combustion chamber with the mixed gas required for combustion. In addition, this solution utilizes the intake channel of the intake nozzle to connect with the combustion chamber without adding other channels, effectively reducing the occupied space and reducing the production cost and difficulty of the burner body.

[0025] Furthermore, the burner body includes an upper body and a lower body, the upper body is located on the top of the lower body, and the upper body and the lower body are detachably connected, a sealing ring is provided between the upper body and the lower body, the combustion chamber and the flow cavity are located in the lower body, and the ignition chamber and the air bleed channel are located in the upper body.

[0026] Beneficial effects: In this solution, the burner body is divided into two parts, the upper and lower parts, which is convenient for installing parts in the upper and lower parts, and is convenient for processing and production. At the same time, it is convenient to disassemble the upper and lower parts to inspect and replace the parts installed in the burner body.

[0027] Furthermore, a heating rod and a temperature probe are provided in the burner body.

[0028] Beneficial effect: It is convenient to control the heating temperature of the heating rod through the temperature control component, thereby facilitating the adjustment of the temperature of the burner body according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0030] Figure 1 This is a longitudinal cross-sectional view of an embodiment of a pulse flame burner of the present utility model;

[0031] Figure 2 This is a top view of a burner body in an embodiment of a pulse flame burner of the present utility model;

[0032] Figure 3 This is a three-dimensional diagram of an upper support block in an embodiment of a pulse flame burner of the present invention;

[0033] Figure 4 This is a three-dimensional diagram from another perspective of the upper support block in an embodiment of a pulse flame burner of the present invention.

[0034] Markings and corresponding parts names in the accompanying drawings:

[0035] Upper body 100, lower body 200, combustion chamber 2, ignition chamber 3, igniter 4, flame arrester 5, exhaust channel 6, connector 60, mounting cavity 7, air bleed channel 8, connecting port 9, potting glue 10, upper support block 11, center hole 110, air hole 111, annular groove 112, card slot 113, lower support block 12, circulation cavity 13, sampling tube 14, combustion chamber air inlet pipe 15, ignition chamber air inlet pipe 16, air inlet nozzle 17, mounting channel 18, heating rod 19, temperature probe 20, connecting bolt 21. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0037] like Figure 1As shown, this embodiment provides a pulse flame burner, including a burner body, a combustion chamber 2, and an ignition chamber 3, with an igniter 4 mounted on the ignition chamber 3. A flow cavity 13 and an air bleed passage 8 are defined within the burner body. The combustion chamber 2 is mounted within the flow cavity 13, and the ignition chamber 3 is mounted on the burner body and located above the combustion chamber 2. The air bleed passage 8 is located between and communicates with the combustion chamber 2 and the ignition chamber 3.

[0038] The burner body includes an upper body 100 and a lower body 200. The upper body 100 is located on the top of the lower body 200, that is, the upper body 100 is overlapped and installed on the top of the lower body 200, and the upper body 100 and the lower body 200 are detachably connected. A sealing ring is provided between the upper body 100 and the lower body 200 for sealing. Figure 2 As shown, in this embodiment, the upper body 100 and the lower body 200 are fixedly connected by four connecting bolts 21, and the four connecting bolts 21 are respectively located at four right angles of the upper body 100 and the lower body 200.

[0039] In this embodiment, the combustion chamber 2 and the circulation cavity 13 are located in the lower body 200, the ignition chamber 3 and the air bleed channel 8 are located in the upper body 100, and the air bleed channel 8 is located at the bottom of the upper body 100. In this embodiment, the combustion chamber 2 and the ignition chamber 3 are staggered, that is, the combustion chamber 2 and the ignition chamber 3 are not located on the same straight line, the air bleed channel 8 is perpendicular to the ignition chamber 3 and the combustion chamber 2 and is interconnected. In this embodiment, the ignition chamber 3 is a pipeline structure, and the bottom end of the ignition chamber 3 is connected to a connecting port 9, which is perpendicular to and connected to the air bleed channel 8, so that the ignition chamber 3 and the combustion chamber 2 are connected through the connecting port 9 and the air bleed channel 8. The igniter 4 installed on the ignition chamber 3 is used to ignite the ignition chamber 3 and ignite the mixed gas in the ignition chamber 3.

[0040] In this embodiment, two sets of igniters 4 are provided. Both sets of igniters 4 include tungsten ignition needles, one end of which is connected to a power source. The other end of the tungsten ignition needle is located within the ignition chamber 3. The two tungsten ignition needles are located at one end of the ignition chamber 3 and are arranged opposite each other. In this embodiment, the ignition chamber 3 is an insulating tube, specifically a ceramic tube, which provides high insulation and low thermal conductivity, thereby preventing reaction with the burner body during ignition.

[0041] In this embodiment, an installation cavity 7 is opened in the upper body 100 of the burner body, and the upper part of the ignition chamber 3 and one end of the igniter 4 are both located in the installation cavity 7. In this embodiment, a connector 60 is detachably connected to the installation cavity 7. In this embodiment, the connector 60 is threadedly connected to the installation cavity 7, and the top end of the connector 60 is located above the installation cavity 7. An exhaust channel 6 is coaxially opened in the connector 60.

[0042] In this embodiment, a flame arrester 5 is installed inside and at the lower part of the connector 60. The flame arrester 5 is clamped in the connector 60 and can block the flame and prevent the flame from being ejected from the exhaust channel 6, thereby ensuring safety.

[0043] In another embodiment, the lower part of the mounting cavity 7 is filled with a potting compound 10 for fixing the ignition tungsten needle and the ignition chamber 3. The potting compound can fix the position of the ignition chamber 3 and the ignition tungsten needle to ensure the stability and reliability of both. The potting compound 10 can also act as an insulator to avoid reaction with the burner body during the ignition process.

[0044] Back to the present embodiment, mutually connected air holes 111 are provided between the top wall of the circulation cavity 13 and the air inlet channel 8, the ignition chamber air inlet pipe 16 is connected to the circulation cavity 13, the combustion chamber air inlet pipe 15 is connected to the combustion chamber 2, and the combustion chamber 2 is also connected to a sampling tube 14 for introducing the substance to be tested, specifically:.

[0045] An air inlet nozzle 17 is connected to the bottom of the circulation chamber 13. In this embodiment, the upper part of the air inlet nozzle 17 extends into the circulation chamber 13 and is threadedly connected to the inner wall of the circulation chamber 13. A sealing ring is installed between the air inlet nozzle 17 and the bottom end of the circulation chamber 13 to ensure the sealing of the circulation chamber 13. An air inlet channel connected to the gas chamber is opened inside the air inlet nozzle 17.

[0046] The top of the air inlet nozzle 17 is connected to the lower support block 12, and the top of the circulation chamber 13 is connected to the upper support block 11. In this embodiment, the lower support block 12 is threadedly connected to the upper part of the air inlet nozzle 17. A groove is provided at the top of the lower body 200 of the burner body. The groove and the circulation chamber 13 form a stepped hole shape. The upper support block 11 is installed in the groove and is located at the top of the circulation chamber 13.

[0047] The bottom of the upper support block 11 and the top of the lower support block 12 are both provided with mutually opposite slots 113, and the two ends of the combustion chamber 2 are tightly clamped in the slots 113 of the upper support block 11 and the lower support block 12 respectively. In this way, the combustion chamber 2 is fixed in the flow cavity 13 under the restrictive action of the upper support block 11 and the lower support block 12.

[0048] One end of the sample tube 14 passes through the air inlet passage of the air inlet nozzle 17 and the lower support block 12 in sequence, thereby communicating with the combustion chamber 2. In this embodiment, a socket is provided at the bottom of the slot 113 of the lower support block 12. The inner diameter of the socket is larger than the outer diameter of the sample tube 14. This allows a gap between the sample tube 14 and the socket on the lower support block 12 after passing through the socket, allowing the air inlet passage of the air inlet nozzle 17 to communicate with the combustion chamber 2 through the socket. In this embodiment, a sealing ring is provided between the combustion chamber 2 and the slot 113 of the lower support block 12 to prevent gas entering through the air inlet nozzle 17 from leaking out of the combustion chamber 2.

[0049] In this embodiment, the sampling tube 14 is a quartz capillary tube with a small inner diameter for introducing the substance to be measured. Thus, the sampling nozzle portion of the combustion chamber 2 is directly inserted by the quartz capillary tube instead of the nozzle.

[0050] One end of the combustion chamber air intake pipe 15 in this embodiment penetrates into one side of the air intake nozzle 17 and communicates with the air intake channel of the air intake nozzle 17, thereby communicating with the combustion chamber 2 through the air intake nozzle 17, making it convenient to fill the combustion chamber 2 with gas. In this embodiment, the gas filled from the combustion chamber air intake pipe 15 is a hydrogen-rich air mixture, and the gas filled from the ignition chamber air intake pipe 16 is a hydrogen-containing air mixture.

[0051] In this embodiment, the upper support block 11 and the lower support block 12 are both made of PEEK material. PEEK material (polyetheretherketone) has the characteristic of being resistant to high temperatures. The combustion chamber 2 is made of quartz material. In this embodiment, the combustion chamber 2 is specifically a highly transparent quartz tube. The volume of the combustion chamber 2 is 35-39 microliters. The small volume of the combustion chamber 2 can increase the equivalent concentration of the substance being measured, thereby improving the sensitivity of the detector.

[0052] Combine Figure 3 and Figure 4 As shown, a center hole 110 and multiple air holes 111 are opened in the center of the upper support block 11. The center hole 110 is connected to the air duct 8 and the combustion chamber. The multiple air holes 111 are evenly distributed along the circumference of the upper support block 11. The air holes 111 are connected to the flow cavity 13 and the air duct 8.

[0053] In another embodiment, an annular groove 112 is provided at the top of the upper support block 11, and multiple air holes 111 are provided at the bottom of the annular groove 112. The multiple air holes 111 are evenly distributed along the circumference of the annular groove 112, and the air holes 111 are communicated with the flow cavity 13 and the air duct 8.

[0054] Back to this embodiment, a mounting channel 18 is opened on the side wall of the burner body. The mounting channel 18 is used to install a light-transmitting component used in the detector to transmit characteristic photons generated when the combustion flame in the combustion chamber 2 is burning.

[0055] In another embodiment, combined Figure 1 and Figure 2 As shown, a heating rod 19 and a temperature probe 20 are provided in the burner body. Both the temperature probe 20 and the heating rod 19 extend into the upper body 100 of the burner body. The heating rod 19 heats the burner to meet the requirements of stable working environment, and the temperature probe 20 facilitates the detection of the temperature of the burner body, thereby facilitating the control of the heating temperature of the heating rod 19 through the temperature control component.

[0056] The specific implementation process is as follows:

[0057] The hydrogen-rich mixed air is filled into the combustion chamber 2 through the combustion chamber air inlet pipe 15, the measured substance is filled into the combustion chamber 2 through the sampling tube 14, and the hydrogen-containing air mixture is filled into the flow cavity 13 through the ignition chamber air inlet pipe 16. The hydrogen-containing air mixture moves upward and enters the ignition chamber 3 through the air hole 111 on the upper support block 11.

[0058] The power supply is started to ignite the igniter 4 , so that the flame in the ignition chamber 3 ignites the mixed gas of the measured substance and the hydrogen-rich mixed air in the combustion chamber 2 , thereby generating a flame in the combustion chamber 2 .

[0059] During use, the ignition chamber 3 and the gas chamber can be filled with equal proportions of gas through proportional design, so that the gases in the ignition chamber 3 and the gas chamber are burned out at the same time, the flames are extinguished at the same time, and then the mixed gas is filled in and burned again, thereby achieving the effect of flame pulse combustion.

[0060] It should be noted that the above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0061] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0062] In the description of this document, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only used to illustrate the relative position relationship between the various components or components, and do not particularly limit the specific installation orientation of the various components or components.

[0063] In the descriptions of this document, some terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0064] In this document, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0065] The structures, proportions, sizes, etc. drawn in the drawings in this application are only used to match the contents disclosed in this technical briefing document for those skilled in the art to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0066] The terms used in this document are those commonly used in the art currently in consideration of the functions of the present disclosure, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present disclosure. Therefore, the terms used in the document should not be understood as simple names, but rather as a general description based on the meaning of the terms and the present disclosure.

[0067] Flowcharts or text are used in this document to illustrate the operational steps performed according to the embodiments of the present application. It should be understood that the operational steps in the embodiments of the present application are not necessarily performed in the exact order in which they are described. Instead, the various steps may be processed in reverse order or simultaneously, as needed. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0068] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pulse flame burner, characterized in that: The burner comprises a burner body, a combustion chamber and an ignition chamber, wherein an igniter is installed on the ignition chamber; a flow cavity and an air bleed passage are provided in the burner body, the combustion chamber is installed in the flow cavity, the ignition chamber is installed on the burner body and is located above the combustion chamber, and the air bleed passage is located between the combustion chamber and the ignition chamber and communicates with the combustion chamber and the ignition chamber; Interconnected air holes are provided between the top wall of the circulation cavity and the air inlet channel. The ignition chamber air inlet pipe is connected to the circulation cavity, the combustion chamber air inlet pipe is connected to the combustion chamber, and the combustion chamber is also connected to a sampling tube for introducing the substance to be tested.

2. A pulse flame burner according to claim 1, characterized in that: The bottom of the circulation cavity is connected to an air inlet nozzle, the top of the air inlet nozzle is connected to a lower support block, the top of the circulation cavity is connected to an upper support block, the bottom of the upper support block and the top of the lower support block are both provided with mutually facing slots, the two ends of the combustion chamber are respectively clamped in the slots of the upper support block and the lower support block, and one end of the sampling tube passes through the air inlet nozzle and the lower support block in sequence to communicate with the combustion chamber; A central hole and a plurality of air holes are provided in the center of the upper support block. The central hole is communicated with the air inlet channel and the combustion chamber. The plurality of air holes are distributed along the circumference of the upper support block. The air holes are communicated with the flow cavity and the air inlet channel.

3. A pulse flame burner according to claim 2, characterized in that: An annular groove is provided at the top of the upper support block, and a plurality of air holes are provided at the bottom of the annular groove.

4. A pulse flame burner according to claim 2, characterized in that: The air inlet nozzle is threadedly connected to the inner wall of the circulation cavity, and a sealing ring is provided between the air inlet nozzle and the bottom end of the circulation cavity.

5. The pulse flame burner according to claim 2, characterized in that: A sealing ring is provided between the combustion chamber and the clamping groove of the lower support block.

6. A pulse flame burner according to any one of claims 2 to 5, characterized in that: The upper support block and the lower support block are both made of PEEK material, and the combustion chamber is made of quartz material.

7. The pulse flame burner according to claim 1, characterized in that: The combustion chamber and the ignition chamber are arranged alternately, and the air induction channel is perpendicular to the ignition chamber and the combustion chamber and is communicated with each other.

8. The pulse flame burner according to claim 2, characterized in that: An air intake passage communicating with the combustion chamber is provided inside the air intake nozzle, and one end of the combustion chamber air intake pipe penetrates into one side of the air intake nozzle and communicates with the air intake passage of the air intake nozzle.

9. The pulse flame burner according to claim 1, characterized in that: The burner body includes an upper body and a lower body, the upper body is located on the top of the lower body, and the upper body and the lower body are detachably connected, a sealing ring is provided between the upper body and the lower body, the combustion chamber and the flow cavity are located in the lower body, and the ignition chamber and the air bleed channel are located in the upper body.

10. The pulse flame burner according to claim 1, characterized in that: A heating rod and a temperature probe are arranged in the burner body.

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