Double-pollution-discharge main fire and small fire integrated negative pressure silent burner

Abstract

The utility model relates to the field of combustors, in particular to a double-pollution-discharge main fire and small fire integrated negative pressure silent combustor which comprises a mixed flow disc and further comprises a combustor body and a combustor outer shell connected to the outer side of the combustor body, the mixed flow disc is located between the combustor body and the combustor outer shell, and the combustor body is connected with the combustor outer shell through the mixed flow disc. A mixed flow combustion cavity is formed between the combustor shell and the mixed flow disc, and the combustor shell is provided with a plurality of sewage discharging holes. Compared with a burner in the prior art, the gas burner is simple in structure, low in manufacturing cost and easy to maintain, has the antifouling and pollution discharge functions, can mix gas and air more sufficiently, and reduces noise generated by gas burning in a main fire state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of combustor especially relates to a double pollution discharge main fire and small fire seed integrated negative pressure mute combustor. BACKGROUND

[0002] At present, in the field of combustor, the main fire gas nozzle and air distribution of full premixing combustor and half premixing combustor are arranged at the front end of the air inlet pipe, and the gas and compressed air are mixed and then enter the combustion chamber, and the combustor is relatively complex in structure and has high maintenance cost.

[0003] The utility model discloses a kind of gas and compressed air normal direction self-coupling

[0004] Outer mixing combustor, including mixing disc, mixing disc is installed on the outer periphery of nozzle, a plurality of compressed air through holes are equipped in the vertical direction of mixing disc, nozzle bottom is equipped with opening connection big fire gas pipeline, nozzle is equipped with small fire mixing piece away from big fire gas pipeline one end, nozzle is equipped with a plurality of gas through holes close to big fire gas pipeline one end. The combustor disclosed in the above-mentioned utility model has simple structure and low manufacturing cost, but lacks pollution prevention and pollution discharge structure, cannot handle the sewage and oil stains splashed during cooking, and long-term use can easily cause the blockage of combustor inside, even the blockage of air inlet pipeline, leading to insufficient combustion, and accompanied by certain noise during use. UTILITY MODEL CONTENTS

[0005] In view of the problem that the combustor with simple structure lacks pollution discharge structure and has certain safety hazard, the utility model provides a main fire and small fire seed integrated mixing combustor with pollution discharge structure, which can effectively deal with sewage and oil stains in cooking scene, has efficient gas and air mixing structure, gas combustion is more sufficient, and has a silencing structure during gas combustion, reducing the noise generated during use of the combustor.

[0006] To achieve the above technical effects, the utility model provides:

[0007] A double pollution discharge main fire and small fire seed integrated negative pressure mute combustor, including mixing disc, further including combustor main body, combustor shell connected to the outer side of the combustor main body, the mixing disc is located between the combustor main body and the combustor shell, the combustor main body, the combustor shell and the mixing disc form a mixing combustion cavity, and the combustor shell has a plurality of pollution discharge holes.

[0008] The combustor provided by the utility model has a combustor shell, wherein the combustor main body is arranged in the combustor shell, the combustor main body

[0009] The burner has two operating states of main fire and small fire, and is internally provided with a mixing disc to fully mix gas and air for combustion, and is provided with a plurality of dirt discharging holes at multiple positions of the burner shell to effectively deal with sewage and oil stains during use of the burner.

[0010] The burner body has a small fire gas mixing passage, one end of the small fire gas mixing passage is connected with a small fire nozzle, the other end of the small fire gas mixing passage is connected with a small fire gas pipe and a small fire gas supply pipe, the small fire gas pipe is horizontally arranged, and the small fire gas supply pipe is vertically arranged and located below the small fire gas pipe. The small fire gas mixing passage mixes the gas and air delivered by the small fire gas pipe and the small fire gas supply pipe, and delivers the mixed gas to the small fire nozzle for combustion; the small fire gas supply pipe is vertically arranged and located below the horizontally arranged small fire gas pipe, so that the accumulated sewage entering by accident can be prevented from being accumulated in the burner body.

[0011] The burner body has a main fire gas passage, one end of the main fire gas passage is connected with a mixing combustion chamber through a main fire nozzle, and the other end of the main fire gas passage is connected with a main fire gas port. The main fire gas port is connected with a gas pipeline, and the main fire gas passage delivers the gas delivered by the main fire gas port to the main fire nozzle.

[0012] The burner body further comprises a main fire gas supply passage, one end of the main fire gas supply passage is connected with a main fire gas supply port, and the other end of the main fire gas supply passage is connected with a first air outlet.

[0013] The other end of the main fire gas supply passage is connected with the mixing combustion chamber through the first air outlet, and the first air outlet is located between the main fire nozzle and the small fire nozzle. The main fire gas supply passage delivers compressed air to above the main fire nozzle, and the compressed air is mixed with the gas delivered by the main fire nozzle in the mixing combustion chamber.

[0014] An opening plate is arranged between the first air outlet and the small fire nozzle, the opening plate has a second air outlet, the main fire gas supply passage is connected with the mixing combustion chamber through the second air outlet, and a flow blocking disc is arranged between the second air outlet and the small fire nozzle. The second air outlet of the opening plate delivers the compressed air in the main fire gas supply passage to above the first air outlet, and the compressed air is further mixed in the mixing combustion chamber.

[0015] The burner shell comprises a gas supply section and a mixing combustion section, the gas supply section has a gas supply chamber, the mixing combustion chamber is located in the mixing combustion section, the gas supply chamber is connected with the mixing combustion chamber, the bottom surface of the mixing combustion section is provided with a plurality of dirt discharging holes, the bottom surface of the gas supply section is provided with a plurality of dirt discharging holes, the gas supply section has a gas supply port, and the gas supply port is connected with the gas supply chamber. The main fire gas supply port and the main fire gas supply port are both located in the gas supply chamber of the gas supply section, the compressed air enters the gas supply chamber through the gas supply port, and then enters the main fire gas passage and the main fire gas supply passage.

[0016] The mixed flow disc is sleeved on the burner body, the mixed flow disc is connected with the burner shell through a plurality of lugs, and a gap is formed between the mixed flow disc and the burner shell, the mixed flow disc comprises a mixed flow bottom plate and a mixed flow side plate, a plurality of bottom plate mixed flow holes are arranged on the mixed flow bottom plate, a plurality of side plate mixed flow holes are arranged on the mixed flow side plate, and a mixed flow disc pressing ring is arranged on the mixed flow disc. The bottom plate mixed flow holes and the side plate mixed flow holes of the mixed flow disc can rotate the compressed air passing through, and further mix the mixed gas and the air; the mixed flow disc is provided with a mixed flow disc pressing ring at the upper end, and the mixed flow disc pressing ring abuts against the mixed flow side plate.

[0017] The axis of the bottom plate mixed flow hole is perpendicular to the radial direction of the mixed flow bottom plate, the bottom plate mixed flow hole has a bottom plate hole included angle with the vertical direction and is denoted as alpha, the side plate mixed flow hole has a side plate hole included angle with the horizontal direction and is denoted as beta, and the bottom plate hole included angle alpha is 10°-15°.

[0018] The side plate hole included angle beta is 10°-15°. The angles of the bottom plate mixed flow holes and the side plate mixed flow holes can rotate the compressed air passing through; meanwhile, the side plate mixed flow holes on the mixed flow side plate have a certain sound attenuation effect, the pressure in the mixed flow combustion chamber is greater than the pressure in the gap between the mixed flow side plate and the burner shell in the main fire state of the burner, and the noise generated by the gas combustion in the mixed flow combustion chamber is transmitted to the gap between the mixed flow side plate and the inner wall of the burner shell through the side plate mixed flow holes. Due to the side plate mixed flow holes and the side plate hole included angle beta, the mixed flow side plate becomes a kind of sound attenuator structure, and the noise generated in the main fire state of the burner is reduced.

[0019] The burner body is provided with a first mixed flow cap at the top, the burner shell is provided with a second mixed flow cap at the top, the bottom surface of the first mixed flow cap is provided with a waterproof ring groove, the top of the burner shell is provided with a water retaining disc, and the water retaining disc is provided with a plurality of blowdown holes. The first mixed flow cap has a certain waterproof effect, the ground is provided with a waterproof ring groove for dripping sewage, and the second mixed flow cap and the water retaining disc jointly prevent the sewage from polluting the surface of the burner shell.

[0020] The first mixed flow cap and the second mixed flow cap form a secondary mixed flow combustion chamber. The secondary combustion chamber is located at the top of the burner shell, and is the last step of mixing the mixed gas, so that the gas can be fully combusted.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The burner shell has a dirt-proof structure, and a plurality of blowdown holes are arranged, so that dirt is effectively prevented and removed.

[0023] 2. The mixed flow disc can fully mix the air and the mixed gas, so that the gas can be fully combusted.

[0024] 3. The utility model discloses a simple structure, low manufacturing cost and easy maintenance compared with the prior art burner.

[0025] 4. The main fire state has certain sound reduction function, reduces the noise under the main fire state. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure section view of the double-pollution main fire and small fire seed integrated negative pressure silent burner.

[0027] Figure 2 It is the section view of the burner.

[0028] Figure 3 It is the section view of the burner shell.

[0029] Figure 4 It is the structure schematic view of the opening plate.

[0030] Figure 5 It is the top view of the mixing disc.

[0031] Figure 6 It is the section view of the mixing disc.

[0032] Figure 7 It is Figure 6 The local enlarged view of A in the middle.

[0033] Figure 8 It is Figure 6 The local enlarged view of B in the middle.

[0034] REFERENCE NUMERALS

[0035] 1, the burner main body;2, the burner shell;3, the mixing disc;4, the mixing combustion cavity;5, the pollution hole;6, the first mixing cap;7, the second mixing cap;8, the secondary mixing combustion cavity;

[0036] 11, the small fire seed gas mixing passage;12, the main fire gas passage;13, the main fire gas supply passage;14, the opening plate;15, the flow baffle disc;21, the gas supply section;22, the mixing combustion section;23, the water baffle disc;31, the mixing bottom plate;32, the bottom plate mixing hole;33, the mixing side plate;34, the side plate mixing hole;35, the foot;36, the mixing disc pressing ring;61, the waterproof ring groove;

[0037] 111, the small fire seed nozzle;112, the small fire seed gas pipe;113, the small fire seed gas supply pipe;114, the flame sensing wire;115, the ignition wire;116, the flame sensing needle;117, the ignition needle;121, the main fire nozzle;122, the main fire gas port;123, the inner hollow cylinder;131, the main fire gas supply port;132, the first air outlet;141, the second air outlet;211, the gas supply cavity;212, the gas supply port. DETAILED DESCRIPTION

[0038] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content.

[0039] The utility model provides a kind of double pollution main fire and small fire seed integrated negative pressure silent combustor, the preferred embodiment of double pollution main fire and small fire seed integrated negative pressure silent combustor is described below with reference to the accompanying drawings.

[0040] Reference is made to the accompanying drawings Figure 1 The double pollution main fire and small fire seed integrated negative pressure silent combustor in the embodiment includes a combustor body 1, a combustor shell 2 connected to the outside of the combustor body 1, and a mixing disc 3 located between the combustor shell 2 and the combustor body 1 inside the combustor shell 2. A mixing combustion chamber 4 is formed between the combustor body 1, the combustor shell 2, and the mixing disc 3. The combustor shell 2 has a plurality of pollution holes 5.

[0041] The combustor body 1 has a small fire seed gas mixing passage 11. One end of the small fire seed gas mixing passage 11 is connected to a small fire seed nozzle 111. The other end of the small fire seed gas mixing passage 11 is connected to a small fire seed gas pipe 112 and a small fire seed gas supply pipe 113. The small fire seed gas pipe 112 is horizontally arranged, and the small fire seed gas supply pipe 113 is vertically arranged below the small fire seed gas pipe 112. The small fire seed gas mixing passage 11 is used to mix the gas delivered by the small fire seed gas mixing passage 11 with the air delivered by the small fire seed gas supply pipe 113 and then deliver the mixture to the small fire seed nozzle 111 for combustion. In this embodiment, the small fire seed gas mixing passage 11 is located at the innermost side of the combustor body 1 and has a tubular shape, which facilitates the thorough mixing of the gas and the air. The small fire seed gas supply pipe 113 is vertically arranged below the small fire seed gas pipe 112, which facilitates the discharge of sewage flowing down the small fire seed gas mixing passage 11. The sewage flows along the small fire seed gas mixing passage 11 to the air outlet of the small fire seed gas supply pipe 113 and is then discharged.

[0042] Reference is made to the accompanying drawings Figure 1 and Figure 2 The combustor body 1 has a main fire gas passage 12. One end of the main fire gas passage 12 is connected to the mixing combustion chamber 4 through a main fire nozzle 121. The other end of the main fire gas passage 12 is connected to a main fire gas port 122. The main fire gas passage 12 is located at the outermost side of the combustor body 1 and has a tubular shape, which is used to deliver the gas input by the main fire gas port 122 to the main fire nozzle 121 and then into the mixing combustion chamber 4. An inner hollow cylinder 123 is arranged between the main fire gas port 122 and the combustor shell 2. The inner hollow cylinder 123 connects the main fire gas port 122 and a gas pipeline. The gas pipeline delivers the gas to the main fire gas port 122. The main fire nozzle 121 is located above the mixing bottom plate 31 of the mixing disc 3.

[0043] The burner body 1 further comprises a main fire gas passage 13, one end of which is connected to a main fire gas inlet 131, and the other end of which is connected to the mixed flow combustion chamber 4 through a first air outlet 132, which is located between the main fire nozzle 121 and the small fire nozzle 111; an opening plate 143 is arranged between the first air outlet 132 and the small fire nozzle 111, the opening plate 143 has a second air outlet 141, the main fire gas passage 13 is connected to the mixed flow combustion chamber 4 through the second air outlet 141, and a flow blocking disc 15 is arranged between the second air outlet 141 and the small fire nozzle 111. The main fire gas passage 13 is located between the small fire gas mixing passage 11 and the main fire gas passage 12 in the interior of the burner body 1, and the main fire gas passage 13 is in a tubular shape as a whole; in this embodiment, four main fire gas inlets 131 are evenly distributed circumferentially on the outside of the burner body 1, and the main fire gas inlets 131 are connected to a gas supply chamber 211, compressed air in the gas supply chamber 211 enters the main fire gas passage 13 through the main fire gas inlets 131, the main fire gas passage 13 delivers the compressed air to the first air outlet 132 and the second air outlet 141 respectively, and the compressed air enters the mixed flow combustion chamber 4. The first air outlet 132 is located above the main fire nozzle 121, and the second air outlet 141 is located above the first air outlet 132; in this embodiment, four first air outlets 132 are evenly distributed circumferentially on the outside of the burner body 1; the compressed air entering the mixed flow combustion chamber 4 is mixed with the gas delivered by the main fire nozzle 121. The flow blocking disc 15 can prevent high-speed air from below from extinguishing the small fire.

[0044] Reference is made to the accompanying drawings Figure 4 The opening plate 14 is sleeved in the interior of the burner body 1, and the opening plate 14 is provided with eight second air outlets 141 for delivering compressed air into the mixed flow combustion chamber 4.

[0045] Reference is made to the accompanying drawings Figure 1 and Figure 3, the burner shell 2 includes a gas supply section 21 and a mixed combustion section 22, the gas supply section 21 has a gas supply cavity 211, the mixed combustion cavity 4 is located in the mixed combustion section 22, the gas supply cavity 211 is communicated with the mixed combustion cavity 4, the mixed combustion section 22 is provided with a plurality of blowholes 5, the gas supply section 21 is provided with a plurality of blowholes 5, the gas supply section 21 has a gas supply port 212, and the gas supply port 212 is communicated with the gas supply cavity 211. The gas supply cavity 211 is located in the inner side of the gas supply section 21 and the space surrounded by the burner main body 1, the gas supply section 21 is provided with a gas supply hole, and the compressed air enters the gas supply cavity 211; the main fire gas supply hole and the secondary gas supply hole are communicated with the gas supply cavity 211; the gas supply cavity 211 is communicated with the mixed combustion cavity 4, and part of the compressed air entering the gas supply cavity 211 directly enters the mixed combustion cavity 4 through the gas supply cavity 211, and realizes mixing through the mixed disc 3, and is further mixed with the mixed gas sent out by the main fire nozzle 121 and the compressed air sent out by the first air outlet 132 and the second air outlet 141; the blowholes 5 at the bottom of the mixed combustion section 22 and the blowholes 5 at the bottom of the gas supply section 21 are used for discharging sewage entering from the top of the burner shell 2.

[0046] The mixed disc 3 is sleeved on the burner main body 1, the mixed disc 3 is connected with the burner shell 2 through a plurality of lugs, and the mixed disc 3 has a gap with the burner shell 2, the mixed disc 3 includes a mixed bottom plate 31 and a mixed side plate 33, a plurality of bottom plate mixed holes 32 are arranged on the mixed bottom plate 31, a plurality of side plate mixed holes 34 are arranged on the mixed side plate 33, and a mixed disc pressing ring 36 is arranged on the mixed disc. The mixed disc 3 is used for further mixing air and gas in the main fire state of the burner main body 1, the mixed disc 3 is divided into two parts to act on the compressed air, part of the compressed air entering the bottom plate mixed hole 32 on the mixed bottom plate 31, and the compressed air entering the gap between the mixed side plate 33 and the burner shell 2 and passing through the side plate mixed hole; the mixed disc pressing ring 36 is placed on the end of the mixed side plate 33 away from the mixed bottom plate 31, and is used for stabilizing the connection between the mixed disc 3 and the burner shell 2.

[0047] Reference is made to the accompanying drawings Figures 5 to 8, the bottom plate mixed flow hole axis is perpendicular to the radial direction of the bottom plate, the bottom plate mixed flow hole has a bottom plate hole angle with the vertical direction and is denoted as a, the side plate mixed flow hole has a side plate hole angle with the horizontal direction and is denoted as β; in the embodiment, the bottom plate hole angle is a = 15°, and the side plate hole angle is β = 15°. In the embodiment, the mixed flow bottom plate 31 is uniformly distributed with the bottom plate mixed flow hole 32, the mixed flow side plate 33 is uniformly distributed with the side plate mixed flow hole 34, and each bottom plate mixed flow hole 32 and side plate mixed flow hole 34 has a certain angle. The angle of the bottom plate mixed flow hole 32 causes the compressed air passing through the bottom plate mixed flow hole 32 to be subjected to centrifugal force and rotate, and the angle of the side plate mixed flow hole 34 causes the compressed air passing through the side plate mixed flow hole 34 to be subjected to centrifugal force and rotate, which is beneficial to further mixing of the mixed gas with air in the main fire state of the burner main body 1 and sufficient combustion; meanwhile, the side plate mixed flow hole 34 on the mixed flow side plate 33 has a certain sound attenuation effect. In the main fire state of the burner, the pressure in the mixed flow combustion chamber 4 is greater than the pressure in the gap between the mixed flow side plate 33 and the burner shell 4, and the noise generated by the gas combustion in the mixed flow combustion chamber 4 is transmitted to the gap between the mixed flow side plate 33 and the inner wall of the burner shell 4 through the side plate mixed flow hole 34. Due to the side plate mixed flow hole 34 and the side plate hole angle β of the side plate mixed flow hole 34, the mixed flow side plate becomes a kind of sound attenuator structure, thereby reducing the noise generated in the main fire state of the burner.

[0048] The burner main body 1 is provided with a first mixed flow cap 6 at the top, and the burner shell 2 is provided with a second mixed flow cap 7 at the top. The bottom surface of the first mixed flow cap 6 is provided with a waterproof ring groove 61, the top of the burner shell 2 is provided with a water baffle 23, and the water baffle 23 is provided with a plurality of blowholes 5. The first mixed flow cap 6 and the second mixed flow cap 7 form a secondary mixed flow combustion chamber 8. Referring to the accompanying drawings Figure 1 The first mixed flow cap 6 is located at the top of the burner main body 1 and has a disc shape as a whole. The outer side of the bottom is provided with a ring-shaped waterproof ring groove 61. The first mixed flow cap 6 can prevent water from entering the small fire nozzle 111 and drip down through the waterproof ring groove 61. The second mixed flow cap 7 is located at the top of the burner shell 2 and has a tubular shape as a whole. The second mixed flow cap has a large-diameter end and a small-diameter end, and the middle part is smoothly transitioned. The large-diameter end of the second mixed flow cap is connected to the top of the burner shell 2, and the small-diameter end is used to contact the pot. The part surrounded by the upper end surface of the first mixed flow cap 6 and the inner surface of the second mixed flow cap 7 is the secondary mixed flow combustion chamber 8. The gas mixed in the mixed flow combustion chamber 4 is further mixed under the action of the inner surface with an arc of the second mixed flow cap 7, and the combustion is sufficient. The water baffle 23 is arranged at the top of the burner shell 2. In the embodiment, the water baffle 23 is annular and is provided with blowholes 5. The water baffle 23 is used to place the water splashed above the burner shell 2 to prevent the surface of the burner shell 2 from being contaminated.

[0049] The flame sensing wire 114 and the ignition wire 115 are arranged in the burner body 1, and one end of each of the flame sensing wire 114 and the ignition wire 115 is arranged at the small fire nozzle 111, the whole is arranged in the burner body 1, and the other end is arranged outside the burner tail; the flame sensing wire 114 is connected with the flame sensing needle 116 at the small fire nozzle 111, and the flame sensing needle 116 is used for sensing the flame temperature at the small fire nozzle 111, so that the subsequent automatic control system is conveniently added; the ignition wire 115 is connected with the ignition needle 117 at the small fire nozzle 111, and the ignition needle 117 is used for igniting the small fire state.

[0050] The following describes the double-pollution main fire and small fire integrated negative pressure silent burner in the small fire state and the main fire state:

[0051] In the small fire state, the small fire gas mixing passage 11 mixes the gas delivered by the small fire gas pipe 112 with the compressed air delivered by the small fire gas supply pipe 113, and delivers the mixed gas to the small fire nozzle 111; the ignition needle at the small fire nozzle 111 ignites the mixed gas;

[0052] In the main fire state, the small fire at the small fire nozzle 111 is continuously ignited; the compressed air enters the gas supply cavity 211 from the gas supply port 212 of the burner shell 2, and further enters the main fire gas supply passage 13 from the main fire gas supply port 131; the gas enters the main fire gas supply passage 12 from the main fire gas supply port 122, is sprayed out from the main fire nozzle 121, and enters the mixing combustion cavity 4; the compressed air entering the main fire gas supply passage 13 enters the mixing combustion cavity from the first air outlet 132 and the second air outlet 141; the compressed air directly entering the mixing combustion cavity 4 from the gas supply cavity 211 is rotated by the bottom plate mixing hole 32 and the side plate mixing hole 34 on the mixing disc 3, and enters the mixing combustion cavity 4; referring to the attached Figure 1 In the mixing combustion cavity 4, the gas delivered by the main fire nozzle 121 is further mixed with the compressed air delivered by the first air outlet 132 and the second air outlet 141 located above the main fire nozzle 121, the rotating air delivered by the bottom plate mixing hole 32 located below the main fire nozzle 121, and the rotating air delivered by the side plate mixing hole 34 located on the outer side of the mixing combustion cavity; the mixed gas in the mixing combustion cavity 4 bypasses the flow blocking disc 15 below the small fire nozzle 111, the small fire ignites the mixed gas, and the burned mixed gas enters the secondary mixing combustion cavity 8 for the last step of mixing, and the mixed gas is fully burned.

[0053] The above is the preferred embodiment of the present application, which is used to illustrate the specific structure and function of the present application. It should be pointed out that the ordinary skilled in the art can make predictable improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications are also within the protection scope of the present application.

Claims

1. A double pollution main fire and small fire integrated negative pressure silent burner, comprising a mixed flow disc, characterized in that, The burner further comprises a burner body, a burner shell connected to the outside of the burner body, and a mixing disc located between the burner body and the burner shell, forming a mixing combustion chamber between the burner body, the burner shell and the mixing disc, and the burner shell has a plurality of exhaust holes.

2. The dual pollution main fire and small fire integrated negative pressure silent burner according to claim 1, characterized in that, The burner body has a small fire gas mixing passage, one end of which is connected to a small fire nozzle, the other end of which is connected to a small fire gas pipe and a small fire gas supply pipe, the small fire gas pipe is horizontally arranged, and the small fire gas supply pipe is vertically arranged below the small fire gas pipe.

3. The dual pollution main fire and small fire integrated negative pressure silent burner according to claim 2, characterized in that, The burner body has a main fire gas passage, one end of which is connected to a main fire nozzle to communicate with the mixing combustion chamber, and the other end of which is connected to a main fire gas port.

4. The dual pollution main fire and pilot integrated negative pressure silent burner according to claim 3, characterized in that, The burner body further comprises a main fire gas supply passage, one end of which is connected to a main fire gas supply port, and the other end of which is connected to the mixing combustion chamber through a first air outlet, and the first air outlet is located between the main fire nozzle and the small fire nozzle.

5. The dual pollution main fire and pilot integrated negative pressure silent burner according to claim 4, characterized in that, An opening plate is arranged between the first air outlet and the small fire nozzle, the opening plate has a second air outlet, the main fire gas supply passage communicates with the mixing combustion chamber through the second air outlet, and a flow blocking disc is arranged between the second air outlet and the small fire nozzle.

6. The dual pollution main fire and pilot integrated negative pressure silent burner according to claim 1, characterized in that, The burner shell comprises a gas supply section and a mixing combustion section, the gas supply section has a gas supply chamber, the mixing combustion chamber is located in the mixing combustion section, the gas supply chamber communicates with the mixing combustion chamber, the bottom surface of the mixing combustion section is provided with a plurality of exhaust holes, the bottom surface of the gas supply section is provided with a plurality of exhaust holes, the gas supply section has a gas supply port, and the gas supply port communicates with the gas supply chamber.

7. The dual pollution main fire and pilot integrated negative pressure silent burner according to claim 1, characterized in that, The mixing disc is sleeved on the burner body, the mixing disc is connected to the burner shell through a plurality of lugs, and a gap is formed between the mixing disc and the burner shell, the mixing disc comprises a mixing bottom plate and a mixing side plate, a plurality of bottom plate mixing holes are arranged on the mixing bottom plate, a plurality of side plate mixing holes are arranged on the mixing side plate, and a mixing disc pressing ring is arranged on the mixing disc.

8. The dual pollution main fire and pilot integrated negative pressure silent burner according to claim 7, characterized in that, The The axis of the bottom plate mixing hole is perpendicular to the radial direction of the mixing bottom plate, the bottom plate mixing hole has a bottom plate hole included angle with the vertical direction and is denoted as α, the side plate mixing hole has a side plate hole included angle with the horizontal direction and is denoted as β, the value range of the bottom plate hole included angle is 10°≤α≤15°, and the value range of the side plate hole included angle is 10°≤β≤15°.

9. The dual pollution main fire and pilot integrated negative pressure silent burner according to any one of claims 1 to 8, characterized in that, The top of the burner body is provided with a first mixing cap, the top of the burner shell is provided with a second mixing cap, the bottom surface of the first mixing cap has a waterproof ring groove, the top of the burner shell has a water blocking disc, and the water blocking disc is provided with a plurality of exhaust holes.

10. The dual flue primary and pilot integrated negative pressure silent burner of claim 9, wherein, The first mixing cap and the second mixing cap form a secondary mixing combustion chamber.

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