CN213576172U - Gas utensil combustor nozzle sound attenuation structure - Google Patents

Gas utensil combustor nozzle sound attenuation structure Download PDF

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Publication number
CN213576172U
CN213576172U CN202022208611.9U CN202022208611U CN213576172U CN 213576172 U CN213576172 U CN 213576172U CN 202022208611 U CN202022208611 U CN 202022208611U CN 213576172 U CN213576172 U CN 213576172U
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China
Prior art keywords
nozzle
silencer
injection pipe
gas
gas appliance
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CN202022208611.9U
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Chinese (zh)
Inventor
周银
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Ningbo Richen Electrical Appliance Co Ltd
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Ningbo Richen Electrical Appliance Co Ltd
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Priority to CN202022208611.9U priority Critical patent/CN213576172U/en
Priority to GB2020067.1A priority patent/GB2599454B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/70—Baffles or like flow-disturbing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement
    • F23D2210/101—Noise abatement using noise dampening material

Abstract

The utility model discloses a nozzle silencing structure of a gas appliance burner, which comprises a nozzle, an ejector pipe in matching connection with the nozzle, a burner body in matching connection with the ejector pipe, and a silencer arranged outside the nozzle and the ejector pipe; the silencer comprises a silencer shell and a silencer body which is connected with the silencer shell in a matching mode; the inner cavity of the silencer shell forms a combustion air channel; the combustion-supporting air channel is communicated with the inner cavity of the injection pipe. The utility model discloses the structure is used for behind the nozzle structure of gas utensil, provides combustion air through the semi-enclosed combustion air passageway that has the amortization body to the combustor, prevents the propagation of noise to under the prerequisite that does not influence the combustion effect, realize the noise reduction to the noise source and handle, more friendly to the user, gas fireplace can obtain more extensive use, and simple structure, simple to operate are applicable to the noise reduction of the nozzle noise of most of gas fireplaces and handle.

Description

Gas utensil combustor nozzle sound attenuation structure
Technical Field
The utility model relates to a gas fireplace technical field, concretely relates to gas utensil combustor nozzle sound attenuation structure.
Background
As a heating device using clean energy, a gas fireplace not only can provide sufficient heating effect, but also can provide real flame for viewing and enjoying compared with a heater (such as a wall-mounted stove), and is popular with consumers.
At present, a burner on a gas appliance generally comprises a burner body for emitting fire and a nozzle for jetting gas, and the gas jetted from the nozzle can pass through a section of injection channel before entering the cavity of the burner body. Because the gas of nozzle spun is the state of high-pressure injection, under its high-speed motion, because venturi effect can attract the air entering around the nozzle and draw and penetrate the passageway, thereby mix as combustion-supporting air and carry out the doping with the gas, follow again and penetrate inside the cavity of passageway entering combustor body, carry out combustion-supporting burning.
However, when the high-speed flowing gas is directly sprayed from the nozzle, high-frequency noise and even squeaking are caused, and when combustion-supporting air enters the injection channel, air movement rubs with the inner wall of the injection channel, and buzzing noise is also generated. These noises can be annoying to some sound-sensitive users, especially at night breaks, and limit the use of gas fireplace devices.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the technical defect of background art is overcome, a gas utensil combustor nozzle amortization structure is provided. The utility model discloses the structure is used for behind the nozzle structure of gas utensil, provides combustion air through the semi-enclosed combustion air passageway that has the amortization body to the combustor, prevents the propagation of noise to realize the noise reduction to the noise source under the prerequisite that does not influence the combustion effect and handle, more friendly to the user, gas fireplace can obtain more extensive use, and simple structure, simple to operate are applicable to the noise reduction of the nozzle noise of most of gas fireplaces and handle.
The utility model provides an above-mentioned technical problem adopted technical scheme as follows:
a gas appliance burner nozzle silencing structure comprises a nozzle, an injection pipe in matched connection with the nozzle, a burner body in matched connection with the injection pipe, and a silencer arranged outside the nozzle and the injection pipe; the silencer comprises a silencer shell and a silencer body which is connected with the silencer shell in a matching mode; the number of the silencer bodies can be set according to the requirement, and a combustion air channel is formed in an inner cavity of the silencer shell; the combustion-supporting air channel is communicated with the inner cavity of the injection pipe; the fuel gas sprayed out of the nozzle enters the ejector pipe, external combustion-supporting air is sucked into the inner cavity of the ejector pipe through the noise reduction body and the combustion-supporting air channel sequentially due to the Venturi effect, the fuel gas and the combustion-supporting air are mixed in the ejector pipe, and then mixed gas enters the inner cavity of the burner body to be combusted; due to the existence of the silencer shell and the silencer, noise generated by gas and combustion air is isolated inside the silencer shell, and the noise is weakened through the silencer.
Further, the muffler body comprises a plurality of small hole passages.
Further, the number of the small pore channels is not less than 6.
Further, the cross-sectional area of the single pore of the pore channel is 4mm2～20mm2。
Further, the section of each small hole of the small hole channel is of a hexagonal honeycomb structure.
Further, the noise reduction body is made of a porous material, and the aperture of the porous material is 0.01 mm-0.5 mm.
Further, one end of the silencer shell forms a combustion air inlet; the combustion air inlet is provided with the silencing body.
Further, a nozzle air inlet and a nozzle air outlet are respectively formed at two end parts of the nozzle; an injection pipe air inlet and an injection pipe air outlet are formed at two end parts of the injection pipe respectively; the air outlet of the nozzle is connected with the air inlet of the injection pipe in a matching way; the air outlet of the injection pipe is connected with the inner cavity of the burner body.
Further, the ejector pipe is arranged inside the burner body.
Further, the nozzle air inlet is arranged inside the silencer; the nozzle air outlet is arranged outside the silencer.
Further, the ejector pipe is arranged outside the burner body.
Further, the nozzle air inlet and the nozzle air outlet are both arranged inside the silencer.
Furthermore, a plurality of injection holes are formed in the air inlet of the injection pipe.
In the above technical solution, the number of the plurality of the sensors is one or more than one.
The basic principle of the utility model is as follows:
the utility model discloses the during operation, follow the nozzle department to draw and penetrate the fast-speed combustible gas of tub blowout high pressure, because the gas is the state of high-speed flow, under the effect of venturi effect draw the inside low pressure state region that can form of passageway of penetrating the pipe to make the air in the muffler shell get into as combustion-supporting air draw penetrating the pipe, and then make combustion-supporting air and gas be in draw penetrating the inside back of mixing of pipe and get into the inside cavity of combustor body burns.
Because the combustion air channel is a semi-closed space surrounded by the silencer shell, the combustion air channel is communicated with the outside only through the silencer, and the outside can supplement the air in the combustion air channel through the silencer. And the silencing body can be arranged in different directions as required, so that primary combustion air required by combustion can be collected from different places as required.
Because the combustion air channel is a semi-closed space, and the nozzle is arranged in the silencer shell, the silencer shell can effectively prevent the noise generated by the flowing friction of the gas sprayed by the nozzle and the primary combustion air from spreading outwards. The silencer body is a structure which is made of porous materials and provided with a plurality of small hole passages, and is an impedance composite silencer structure, so that noises with various frequencies can be effectively eliminated, and the silencing effect is adjusted to be optimal.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a gas utensil combustor nozzle amortization structure owing to set up the seal shell at nozzle and surrounding space, gets into the gas that draws the ejector pipe and the noise that the air produced can completely cut off effectively in the closed area of seal shell inside. The silencing body is a honeycomb channel made of porous materials, so that combustion air is allowed to pass through, meanwhile, sound can be rubbed in the channel, sound energy is converted into heat energy, noise is reduced, the gas fireplace can run quietly, and the gas fireplace is friendly to users.
Drawings
Fig. 1 is a schematic perspective view of a gas appliance burner nozzle silencing structure according to embodiment 1 of the present invention;
fig. 2 is a schematic partial sectional view of a nozzle silencing structure of a gas appliance burner according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a half-section structure of a nozzle silencing structure of a gas appliance burner in embodiment 1 of the present invention;
fig. 4 is an exploded view of the nozzle silencing structure of the gas appliance burner in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a silencer according to embodiment 1 of the present invention;
fig. 6 is a schematic half-sectional view of a nozzle silencing structure of a gas appliance burner in embodiment 2 of the present invention;
fig. 7 is a schematic partial sectional view of a nozzle silencing structure of a gas appliance burner according to embodiment 2 of the present invention;
fig. 8 is a schematic structural view of a silencer according to embodiment 3 of the present invention;
fig. 9 is a schematic perspective view of a nozzle silencing structure of a gas appliance burner according to embodiment 4 of the present invention;
fig. 10 is a schematic half-sectional view of a nozzle silencing structure of a gas appliance burner according to embodiment 4 of the present invention;
fig. 11 is a schematic partial sectional view of a nozzle silencing structure of a gas appliance burner according to embodiment 5 of the present invention.
The corresponding part names for the various reference numbers in the figures are:
1-a nozzle; 11-nozzle inlet; 12-nozzle outlet; 2-an injection pipe; 21-injection pipe air inlet; 22-an air outlet of the injection pipe; 23-an injection hole; 3-a burner body; 4-a silencer; 41-a muffler housing; 42-a sound-deadening body; 421-pore channel; 43-combustion air channel; 44-combustion air inlet.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description and accompanying drawings. It should be understood that these examples are for further illustration of the present invention only, and are not intended to limit the scope of the present invention. It should be further understood that after reading the above description of the present invention, those skilled in the art will make certain insubstantial changes or modifications to the present invention, and shall still fall within the scope of the present invention.
Example 1
A gas appliance burner nozzle silencing structure is shown in figures 1-5 and comprises a nozzle 1, an injection pipe 2 in matched connection with the nozzle 1, a burner body 3 in matched connection with the injection pipe 2 and a silencer 4 arranged outside the nozzle 1 and the injection pipe 2; the muffler 4 comprises a muffler shell 41 and a muffler body 42 which is matched and connected with the muffler shell 41, in this embodiment, the number of the muffler bodies 42 is one; the internal cavity of the muffler shell 41 forms a combustion air channel 43; the combustion-supporting air channel 43 is communicated with the inner cavity of the injection pipe 2; the gas ejected from the nozzle 1 enters the injection pipe 2, due to the venturi effect, external combustion-supporting air is sucked into the injection pipe 2 through the noise reduction body 42 and the combustion-supporting air passage 43 in sequence, the gas and the combustion-supporting air are mixed in the injection pipe 2, and then the mixed gas enters the inner cavity of the burner body 3 for combustion; due to the presence of the muffler case 41 and the muffler body 42, noise generated by the combustion gas and the combustion air is isolated inside the muffler case 41, and the noise is attenuated by the muffler body 42.
When the nozzle 1 sprays gas, the combustion air channel 43 provides primary combustion air, so that flowing gas is sealed in the silencer shell 41, the noise generated by gas flowing friction can be effectively reduced, the sleep is not influenced even if a corresponding gas appliance (gas fireplace) is used at night, and the gas silencer is more friendly to users and more widely used.
As shown in fig. 5, the sound-deadening body 42 includes a plurality of small-hole passages 421.
As shown in fig. 5, the number of the small pore channels 421 is 23.
The cross-sectional area of the single aperture of the aperture channel 421 is 10mm2Left and right.
As shown in fig. 5, the cross-section of the single cell of the cell channel 421 is a hexagonal honeycomb structure.
As shown in fig. 5, the sound-deadening body 42 is made of a porous material having a pore diameter of 0.2 mm.
As shown in fig. 2, the muffler case 41 forms a combustion air inlet 44 in a horizontal direction; the combustion air inlet 44 is provided with the silencer 42, and the silencer 42 is horizontally arranged, so that the combustion air passage 43 is communicated with the front space of the burner body 3.
As shown in fig. 3, a nozzle air inlet 11 and a nozzle air outlet 12 are formed at two ends of the nozzle 1; an injection pipe air inlet 21 and an injection pipe air outlet 22 are formed at two end parts of the injection pipe 2 respectively; the nozzle air outlet 12 is connected with the injection pipe air inlet 21 in a matching way; the air outlet 22 of the injection pipe is connected with the inner cavity of the burner body 3.
As shown in fig. 3, the ejector pipe 2 is provided inside the burner body 3.
As shown in fig. 3, the ejector tube 2 is integrated with the burner body 3.
As shown in fig. 3, the nozzle inlet 11 is provided inside the muffler; the nozzle outlet 12 is disposed outside the muffler 4.
As shown in fig. 2 to 4, when the primary combustion air in the combustion air passage 43 enters the injection pipe 2, in order to limit and control the amount of the primary combustion air entering the injection pipe 2, a plurality of injection holes 23 are formed in the injection pipe air inlet 21.
As shown in fig. 4, the number of the ejection holes 23 is four.
The working process of the gas appliance burner nozzle silencing structure of the embodiment is as follows:
during operation, the high-speed combustible gas of high pressure of blowout from nozzle 1, because the gas is the state that flows at a high speed, under the effect of venturi effect, can form a low pressure state region in the passageway of ejector pipe 2 inside to make the air in muffler casing 41 pass through as a combustion-supporting air ejector 23 gets into ejector pipe 2, and then make a combustion-supporting air and gas get into the inside cavity of combustor body 3 after ejector pipe 2 is inside to mix and burn.
Because the combustion-supporting air passage 43 is a semi-closed space surrounded by the silencer housing 41 and is communicated with the front space of the burner body 3 only through the silencer body 42, the combustion-supporting air passage 43 can collect primary combustion-supporting air in front of the burner body 3 through the silencer body 42.
Since the combustion air passage 43 is a semi-closed space and the nozzle 1 is disposed inside the silencer housing 41, the silencer housing 41 can effectively prevent the outward spread of noise generated by the friction of the flow of the gas ejected from the nozzle 1 and the primary combustion air. The noise reduction body 42 is made of porous material and has a plurality of parallel hexagonal small-hole passages 421, and is a noise reduction structure with composite impedance, so that noise of various frequencies can be effectively eliminated, and the noise reduction effect is adjusted to be optimal.
Example 2
This embodiment is substantially the same as embodiment 1 except that, as compared with embodiment 1, the muffler case 41 is formed with a combustion air inlet 44 in a vertically downward direction, and the muffler body 42 is disposed vertically downward, i.e., from below the burner body 3 when the combustion air passage 43 takes in combustion air once, as shown in fig. 6.
Further, as shown in fig. 7, the cross section of the plurality of small-hole passages 421 of the muffler body 42 is circular.
Example 3
This embodiment is substantially the same as embodiment 1 except that, as compared with embodiment 1, as shown in fig. 8, the cross section of the sound-deadening body 42 is circular, the axis is a curved structure, and the axis of the small-hole passage 421 on the sound-deadening body 42 is also a curved structure, which can further obstruct the propagation of sound waves, i.e., make the noise reduction effect more remarkable.
Example 4
This embodiment is substantially the same as embodiment 2 except that, as compared with embodiment 2, as shown in fig. 9 and 10, the ejector pipe 2 is provided outside the burner body 3 and inside the muffler 4; the nozzle air inlet 11 and the nozzle air outlet 12 are both arranged inside the silencer 4.
Example 5
This embodiment is substantially the same as embodiment 1 except that, as compared with embodiment 1, two muffling bodies 42 are provided on the illustrated muffler 4, and two combustion air inlets 44 are provided correspondingly, as shown in fig. 11.
The above description is not intended to limit the present invention, and the present invention is not limited to the above examples. Those skilled in the art should also realize that changes, modifications, additions, or substitutions can be made without departing from the spirit and scope of the invention.

Claims (10)

1. The gas appliance burner nozzle silencing structure is characterized by comprising a nozzle (1), an injection pipe (2) in matched connection with the nozzle (1), a burner body (3) in matched connection with the injection pipe (2), and a silencer (4) arranged outside the nozzle (1) and the injection pipe (2); the silencer (4) comprises a silencer shell (41) and a plurality of silencer bodies (42) which are connected with the silencer shell (41) in a matching mode; the internal cavity of the silencer casing (41) forms a combustion air channel (43); the combustion-supporting air channel (43) is communicated with the inner cavity of the injection pipe (2).
2. A gas appliance burner nozzle sound-attenuating structure as claimed in claim 1, characterized in that the sound-attenuating body (42) comprises a number of small-bore passages (421).
3. The gas appliance burner nozzle sound attenuating structure as claimed in claim 2, wherein the number of said small hole passages (421) is not less than 6.
4. The gas appliance burner nozzle sound-deadening structure according to claim 2, wherein a sectional area of a single orifice of the orifice passage (421) is 4mm2～20mm2。
5. The gas appliance burner nozzle silencing structure of claim 2, wherein the cross-section of the single small hole of said small hole channel (421) is a hexagonal honeycomb structure.
6. The gas appliance burner nozzle sound-deadening structure according to claim 1, wherein the sound-deadening body (42) is made of a porous material having a pore diameter of 0.01mm to 0.5 mm.
7. A gas appliance burner nozzle silencing structure as defined in claim 1, wherein one end of said silencer housing (41) forms a combustion air intake port (44); the combustion air inlet (44) is provided with the noise reduction body (42).
8. The structure of claim 1, wherein the nozzle (1) has two ends forming a nozzle inlet (11) and a nozzle outlet (12), respectively; an injection pipe air inlet (21) and an injection pipe air outlet (22) are formed at two ends of the injection pipe (2) respectively; the nozzle air outlet (12) is connected with the injection pipe air inlet (21) in a matching way; the air outlet (22) of the injection pipe is connected with the inner cavity of the burner body (3); the air inlet (21) of the injection pipe is provided with a plurality of injection holes (23).
9. The gas appliance burner nozzle silencing structure of claim 8, wherein the ejector tube (2) is disposed inside the burner body (3); the nozzle air inlet (11) is arranged inside the silencer; the nozzle air outlet (12) is arranged outside the silencer (4).
10. The gas appliance burner nozzle silencing structure of claim 8, wherein the ejector tube (2) is disposed outside the burner body (3); the nozzle air inlet (11) and the nozzle air outlet (12) are both arranged inside the silencer (4).
CN202022208611.9U 2020-09-30 2020-09-30 Gas utensil combustor nozzle sound attenuation structure Active CN213576172U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202022208611.9U CN213576172U (en) 2020-09-30 2020-09-30 Gas utensil combustor nozzle sound attenuation structure
GB2020067.1A GB2599454B (en) 2020-09-30 2020-12-17 A silencing structure of burner nozzle for gas appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022208611.9U CN213576172U (en) 2020-09-30 2020-09-30 Gas utensil combustor nozzle sound attenuation structure

Publications (1)

Publication Number Publication Date
CN213576172U true CN213576172U (en) 2021-06-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022208611.9U Active CN213576172U (en) 2020-09-30 2020-09-30 Gas utensil combustor nozzle sound attenuation structure

Country Status (2)

Country Link
CN (1) CN213576172U (en)
GB (1) GB2599454B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029462A (en) * 1975-12-10 1977-06-14 National Airoil Burner Co., Inc. Burner with noise suppressor
GB1599662A (en) * 1978-05-04 1981-10-07 Quietflo Eng Ltd Silencing and air control devices for fuel burners
US6106276A (en) * 1996-09-10 2000-08-22 National Tank Company Gas burner system providing reduced noise levels

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Publication number Publication date
GB2599454A (en) 2022-04-06
GB2599454B (en) 2023-09-06
GB2599454A8 (en) 2022-09-28
GB202020067D0 (en) 2021-02-03

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