CN215411880U - Injection assembly, combustor and gas equipment - Google Patents

Abstract

The application discloses draw and penetrate subassembly, combustor and gas equipment, draw and penetrate the subassembly and include: the subassembly is drawn to outer loop more than 2, every outer loop in the subassembly is drawn to the outer loop draws and draws the subassembly to include: more than 2 outer ring injection pipes which are communicated in sequence, wherein one end of each outer ring injection pipe assembly is communicated with the outer ring flame channel, and the other end of each outer ring injection pipe assembly is opposite to the outer ring nozzle; and air inlet openings are formed between each outer ring injection pipe assembly and the outer ring nozzle and between two adjacent outer ring injection pipes of each outer ring injection pipe assembly. The outer ring that includes more than 2 through the setting draws penetrates the pipe, and is equipped with air inlet, uses, can inhale the air through air inlet to can solve the problem of drawing the air quantity not enough to a certain extent, make gas and air can even and intensive mixing, improve combustion efficiency, reduce CO and NOx's emission.

Description

Injection assembly, combustor and gas equipment

Technical Field

The application belongs to the technical field of gas cooking utensils, especially relates to an draw and penetrate subassembly, combustor and gas equipment.

Background

The gas stove is an indispensable kitchen utensil in daily life, and along with the continuous improvement of people's living standard, people's requirement to the gas stove is higher and higher.

In most of the existing kitchen ranges on the market, the flame is mainly divided into two rings of inner ring fire and outer ring fire, the corresponding injection channels of the injectors are also two paths, namely an outer injection channel and an inner injection channel, the outer injection channel corresponds to the outer ring flame, and the inner injection channel corresponds to the inner ring flame. The inner ring flame has smaller thermal load, small nozzle caliber and small injected air quantity, and the fuel gas and the air can be fully mixed in the inner injection passage; however, the outer ring flame has a large thermal load, the corresponding nozzle has a large caliber, and the required primary air amount is large, and the existing outer injection channel is adopted, so that the injection air amount is not enough to be uniformly and fully mixed with the gas, so that the gas combustion condition is poor, and the indexes of CO and NOx are high.

SUMMERY OF THE UTILITY MODEL

This application aims at solving the outer loop at least and draws the ejection air quantity that penetrates the passageway and be not enough with even and intensive mixing of gas to a certain extent, leads to the gas combustion operating mode poor, and CO and NOx index are on the high side's technical problem. Therefore, the application provides an injection assembly, a combustor and gas equipment.

The injection assembly is characterized by comprising more than 2 outer ring injection pipe assemblies, wherein each outer ring injection pipe assembly in the outer ring injection pipe assemblies comprises more than 2 outer ring injection pipes which are sequentially communicated, one end of each outer ring injection pipe assembly is communicated with an outer ring flame passage, and the other end of each outer ring injection pipe assembly is opposite to an outer ring nozzle;

and an air inlet is formed between each outer ring injection pipe assembly and the outer ring nozzle and between two adjacent outer ring injection pipes of each outer ring injection pipe assembly.

Each outer ring injection pipe assembly in the outer ring injection pipe assemblies is arranged to comprise more than 2 outer ring injection pipes, air inlet openings are formed between the outer ring injection pipe opposite to the outer ring nozzle and between two adjacent outer ring injection pipes, when the outer ring injection pipe assemblies are used, after gas is introduced into the outer ring nozzle, the gas is injected to the outer ring injection pipe assemblies of the injection assemblies through the outer ring nozzles, negative pressure is formed at a high gas flow speed, and external air can enter through the air inlet openings between the outer ring nozzle and the outer ring injection pipe assemblies under the action of the negative pressure, so that the gas and the air can be primarily mixed; then, the gas after the preliminary mixing continues to draw the injection pipe along the outer loop more than 2 and jets out in proper order to under the effect of negative pressure, the air passes through adjacent two the outer loop draws the air inlet entering between the injection pipe, mixes the gas after the preliminary mixing once more, with the mixing intensity of strengthening gas and air, improves combustion efficiency and heat load, thereby solves to a certain extent and draws the problem that the air quantity is not enough, makes gas and air can even and intensive mixing, improves combustion efficiency, reduces CO and NOx's emission.

In some embodiments, each of the outer ring ejector tube assemblies comprises:

one end of the first outer ring injection pipe is opposite to the outer ring nozzle, and the air inlet is arranged between the first outer ring injection pipe and the outer ring nozzle; and

and one end of the second outer ring injection pipe is communicated with the outer ring flame channel, the other end of the second outer ring injection pipe is communicated with the other end of the first outer ring injection pipe, and the air inlet is arranged between the second outer ring injection pipe and the first outer ring injection pipe.

Through the setting will every outer loop in the outer loop draws the ejector pipe subassembly sets up to drawing the ejector pipe to drawing the pipe including first outer loop and second outer loop, just, first outer loop draw the ejector pipe with be provided with the air inlet between the outer loop nozzle, and first outer loop draw the ejector pipe with second outer loop draws and is provided with the air inlet, when using, can pass through first outer loop draw the ejector pipe with between the outer loop nozzle and first outer loop draw the ejector pipe with the air inlet between the second outer loop draws the ejector pipe inhales the air to solve to a certain extent and draw the not enough problem of air volume of penetrating, make gas and air can even and intensive mixing, improve combustion efficiency, reduce CO and NOx's emission.

In some embodiments, the eductor assembly further includes an inner annular eductor tube positioned between the first outer annular eductor tube and the second outer annular eductor tube.

Through setting up the inner ring simultaneously and drawing the ejector tube, improve heating efficiency.

In some embodiments, the axes of the first outer ring ejector tube, the second outer ring ejector tube and the inner ring ejector tube are parallel and not coplanar.

Through with the axle center that the inner ring penetrated the pipe, the axle center that first outer ring penetrated the pipe with the axle center that the second outer ring penetrated the pipe sets up to parallel and not coplane, when having realized that the positional relationship between 3 axles matches with outer loop flame path and inner ring flame path, avoids inner ring to penetrate pipe, first outer ring to penetrate pipe and second outer ring to penetrate the pipe and take place the position and interfere.

In some embodiments, the injection assembly further includes a first end plate and a second end plate, wherein more than 2 second outer ring injection pipes and one end of each inner ring injection pipe are fixed on the first end plate, and the other end of each inner ring injection pipe is fixed on the second end plate.

In some embodiments, the injection assembly further includes an air door assembly sleeved on the first outer ring injection pipe and fixed to the second outer ring injection pipe near the end of the first outer ring injection pipe, and the air door assembly is used for adjusting the air intake between the first outer ring injection pipe and the second outer ring injection pipe.

Through setting up the air door subassembly to can adjust the intake, thereby reach the technological effect who improves combustion efficiency.

In some embodiments, the damper assembly includes a damper plate and a damper blade stacked on the damper plate and rotatable with respect to the damper plate, the damper plate is provided with a plurality of plate holes, and the damper blade is provided with a plurality of through holes.

The air adjusting sheet is adjusted to rotate, so that the plate hole of the air door plate and the through hole of the air adjusting sheet are partially overlapped or overlapped, the air quantity of the second outer ring injection pipe is adjusted to enter, and the technical effect of improving the combustion efficiency is achieved.

The embodiment of the application also provides a combustor, the combustor includes above-mentioned any embodiment draw and penetrate the subassembly. When the outer ring injection nozzle is used, air can be sucked through the air inlet between the outer ring injection pipe and the outer ring nozzle and between the two adjacent outer ring injection pipes, so that the problem of insufficient injection air quantity is solved to a certain extent, gas and air can be uniformly and fully mixed, the combustion efficiency is improved, and the emission of CO and NOx is reduced.

In some embodiments, the burner includes a sidewall defining an outer annular inlet passage in communication with an outer annular nozzle, the outer annular nozzle being secured to the sidewall.

In some embodiments, the first outer annular ejector tube is fixed to the side wall and forms an air inlet between the outer annular nozzle and the first outer annular ejector tube.

In some embodiments, a support pillar is disposed on the side wall, and a lug fixed to the support pillar is disposed on the first outer-ring ejector pipe.

The first outer ring injection pipe is provided with a lug fixed on the support column, so that an air inlet is formed between the outer ring nozzle and the first outer ring injection pipe while the first outer ring injection pipe is fixed, and the combustion efficiency is improved.

The embodiment of the application also provides gas equipment which comprises the combustor in any one of the above embodiments. When the outer ring injection nozzle is used, air can be sucked through the air inlet between the outer ring injection pipe and the outer ring nozzle and between the two adjacent outer ring injection pipes, so that the problem of insufficient injection air quantity is solved to a certain extent, gas and air can be uniformly and fully mixed, the combustion efficiency is improved, and the emission of CO and NOx is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an injection assembly in an embodiment of the present disclosure;

FIG. 2 is a schematic illustration of a burner incorporating the eductor assembly of FIG. 1 according to the present application;

FIG. 3 shows a schematic structural view of another perspective of the burner of FIG. 2;

FIG. 4 shows an exploded schematic view of the burner of FIG. 2;

FIG. 5 is a schematic view of the damper assembly of the burner of FIG. 2;

FIG. 6 shows an exploded view of another perspective of the burner of FIG. 2;

FIG. 7 shows a side view of the burner of FIG. 2;

FIG. 8 shows a cross-sectional view through C-C of the burner of FIG. 7;

FIG. 9 shows a cross-sectional view taken along line D-D of the burner of FIG. 7;

FIG. 10 is a schematic view of the eductor assembly of the burner of FIG. 2 with the first outer annular ring eductor tube removed;

FIG. 11 shows a schematic view of the gas-fired apparatus of the present application;

FIG. 12 shows a top view of the gas fired device of FIG. 11;

FIG. 13 shows a cross-sectional view A-A of the gas fired device of FIG. 12;

fig. 14 shows a cross-sectional view of the gas fired device of fig. 12 in the direction of B-B.

Reference numerals:

the injection assembly 100, the outer ring injection pipe assembly 110, the first outer ring injection pipe 111, the first outer ring absorption section 1111, the first outer ring mixing section 1112, the lug 1113, the second outer ring injection pipe 112, the second outer ring absorption section 1121, the second outer ring mixing section 1122, the outer ring diffusion section 1123, the inner ring injection assembly 120, the inner ring absorption section 121, the inner ring mixing section 122, the inner ring diffusion section 123, the first end plate 130, the second end plate 140, the reinforcing rib 150, the damper assembly 170, the damper plate 171, the air adjusting plate 172, the plate hole 1711, the through hole 1721, the bracket 160, the outer ring air inlet passage 161, the inner ring air inlet passage 162, the inner ring nozzle 320, the side wall 163, the fixing plate 164, the fixing assembly 165, the support column 1651, the outer ring 11 flame passage 200, the inner ring flame passage 210, the outer ring nozzle 310, the air inlet 410, the air inlet 420, the burner 500, and the gas equipment 600.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

the embodiment of the application provides an inject subassembly, combustor and gas equipment for can solve the outer loop at least to a certain extent and draw the injection air volume of penetrating the passageway and be enough with even and intensive mixing of gas, lead to the gas combustion operating mode poor, CO and NOx index technical problem on the high side.

Example one

As shown in fig. 1, the present application provides an injection assembly 100, and the injection assembly 100 may be applied to any gas equipment, such as a gas stove, a gas water heater, a gas oven, etc. The injection assembly 100 includes: the number of the outer ring injection pipe assembly 110 is more than 2. 2 or more or 2 or more means the case including but not limited to 2, the same applies.

Each outer ring injection pipe component 110 comprises an outer ring injection pipe, and the number of the outer ring injection pipes is more than or equal to 2. Referring to fig. 8 and 14, the outer ring ejector pipes of 2 or more are sequentially communicated, and an outer ring ejector pipe assembly is formed after the outer ring ejector pipes of 2 or more are sequentially communicated. One end of the outer ring injection pipe assembly is communicated with an outer ring flame passage 200 on the cooking range, and is used for providing mixed gas for the outer ring flame passage 200 to burn. The other end of the outer ring ejector pipe assembly is opposite to the outer ring nozzle 310, so that gas is supplied through the outer ring nozzle 310 when the outer ring nozzle 310 is filled with gas;

an air inlet port for facilitating air inlet is arranged between the outer ring nozzle 310 and the opposite outer ring ejector pipe. An air inlet port convenient for air to enter is also arranged between two adjacent outer ring ejector pipes. Air can be sucked into the outer ring injection pipe assembly 110 through the plurality of air inlet openings so as to be fully mixed with fuel gas in the outer ring injection pipe assembly 110, and the combustion efficiency of the fuel gas is improved. Experimental data show that compared with the situation that only one air inlet is arranged, the combustion efficiency of the air-fuel burner is greatly improved.

After the gas is introduced into the outer ring nozzle 310, the gas is injected into the outer ring ejector pipe assembly 110 of the ejector assembly 100 through the outer ring nozzle 310, the gas flow rate is high to form negative pressure, and external air enters through an air inlet between the outer ring nozzle 310 and the outer ring ejector pipe assembly 110 under the action of the negative pressure, so that the gas and the air can be primarily mixed; then the gas after preliminary mixing continues to draw the ejector tube along more than 2 outer rings and jets in proper order and jets out to under the effect of negative pressure, the air draws the air inlet entering between the ejector tube through two adjacent outer rings to mix the gas after preliminary mixing once more, with the mixing intensity of reinforcing gas and air, improve combustion efficiency and heat load.

Inject the subassembly through setting up the outer loop more than 2, it draws the subassembly to set up to have the outer loop more than 2 to draw to penetrate the pipe again to draw every outer loop, and, it is provided with the air admission mouth to draw between tub and the nozzle 310 that corresponds at the outer loop, also the same air admission mouth that is provided with between two adjacent outer loops draw and penetrate the pipe, when using, can be through a plurality of air admission mouths air intake simultaneously, make and inhale sufficient air, carry out the intensive mixing with the gas that gets into, thereby it is not enough to solve to a certain extent to draw the air quantity, gas and air can not be even and the intensive mixing's problem, the combustion efficiency is improved, reduce the emission of CO and NOx.

In this embodiment, each outer ring injection pipe assembly 110 has 2 outer ring injection pipes for exemplary illustration, and is not limited to only 2 outer ring injection pipes, and in some embodiments, the number of the outer ring injection pipes may be set to be multiple, and specifically may be set as required. The following is introduced with 2 outer ring ejector tubes:

as shown in fig. 2, 3, 4 and 6, each outer ring ejector pipe assembly 110 includes two outer ring ejector pipes, specifically, a first outer ring ejector pipe 111 and a second outer ring ejector pipe 112, an air inlet end of the first outer ring ejector pipe 111 is opposite to a corresponding outer ring nozzle 310, an air inlet end of the second outer ring ejector pipe 112 is communicated with an air outlet end of the corresponding first outer ring ejector pipe 111, and an outer ring flame path 200 is communicated with an air outlet end of the second outer ring ejector pipe 112.

An air inlet 410 (fig. 3) is arranged between the outer ring nozzle 310 and the corresponding first outer ring injection pipe 111, and an air inlet 420 (fig. 10) is arranged between the communicated first outer ring injection pipe 111 and the second outer ring injection pipe 112.

During the use, the gas can mix through the second grade, and the one-level is mixed: namely, the gas is primarily mixed, when the gas is introduced into the outer ring nozzle 310, the gas is sprayed to the first outer ring injection pipe 111 through the outer ring nozzle 310, negative pressure is formed through rapid flow of the gas, and the gas enters the first outer ring injection pipe 111 through the air inlet 410 under the action of the negative pressure, so that the gas and the air can be primarily mixed; and (3) secondary mixing: gas after the preliminary mixing continues to spout to second outer ring ejector pipe 112, and under the effect of negative pressure, the air passes through air intake 420 and gets into second outer ring ejector pipe 112 to gas after will the preliminary mixing mixes again, in order to strengthen the degree of mixing of gas and air, makes the degree of mixing of gas and air improve greatly, thereby improves combustion efficiency and heat load.

Through setting up two outer rings and drawing the penetrate the pipe, promptly, first outer ring draws penetrates pipe 111 and second outer ring and draws penetrates pipe 112, and, be provided with 2 air intake ports, air intake port 410 and air intake port 420 promptly, when using, can not only be through air intake port 410 intake air, can also be through air intake port 420 intake air, increased the inspiratory capacity of air for the mixed degree of gas and air improves, and gas and air can intensive mixing.

As shown in fig. 2, 3 and 7, the injection assembly 100 further includes an inner ring injection assembly 120, and the inner ring injection assembly 120 is configured to supply air to the inner ring flame path. The inner ring injection assembly 120 includes an inner ring injection tube with an air inlet disposed between the inner ring injection tube and the inner ring nozzle 320. Two second outer ring ejector pipes 112 are respectively arranged on two opposite sides of the inner ring ejector pipe, and the heat supply efficiency is improved by simultaneously arranging the inner ring ejector pipes. The axes of the inner ring injection pipes are not in the plane where the axes of the first outer ring injection pipe 111 and the second outer ring injection pipe 112 are, but are parallel to each other. That is, the axis of the inner ring injection pipe does not fall into the plane where the axes of the first outer ring injection pipe 111 and the second outer ring injection pipe 112 are located, so that the positional relationship among the 3 axes is matched with the outer ring flame path and the inner ring flame path, and the positional interference among the inner ring injection pipe, the first outer ring injection pipe and the second outer ring injection pipe is avoided. In a use state, the height of the inner ring injection pipe is higher than that of the first outer ring injection pipe 111 and the second outer ring injection pipe 112. The first outer ring jet pipe 111 is located between the second outer ring jet pipe 112 and the outer ring nozzle 310. In some embodiments, the height of the inner ring injection pipe may be set lower than the first outer ring injection pipe 111 and the second outer ring injection pipe 112.

Referring to fig. 9 and 13, the inner ring injector tube has an inlet end opposite the inner ring nozzle 320 and an outlet end in communication with the inner ring flame path 210. When letting in the gas in the inner ring nozzle 320, the gas spouts through the inner ring nozzle 320 and draws the injection pipe to the inner ring, forms the negative pressure through the gas fast flow, draws to be provided with the air admission mouth through the inner ring and gets into in the inner ring and draw the injection pipe between injection pipe and the inner ring nozzle 320 under the negative pressure effect, makes gas and air mix, draws the injection pipe through setting up the inner ring simultaneously, improves heating efficiency.

The inner ring injection assembly 120 may be configured to include a single inner exchange injection pipe or a plurality of inner ring injection pipes. When the inner ring injection assembly 120 comprises a plurality of inner ring injection pipes, a plurality of air inlet openings are correspondingly arranged, namely, a structure similar to that of the outer ring injection assembly 110 is adopted, so that the gas in the inner ring can be fully combusted, and the combustion efficiency is improved. The inner ring of the application draws the subassembly 120 to draw and penetrates the pipe, also can set up as required to draw the subassembly 120 for a plurality of inner rings that set up side by side. Or according to the size and the size of the stove, the inner ring injection pipe is not arranged, only the outer ring injection pipe is arranged, and the inner ring flame channel 210 is not correspondingly arranged, namely, the inner ring flame is not arranged.

As shown in fig. 4 and 6, the first outer ring injection pipe 111 is an integrally formed structure, is substantially horn-shaped, and includes a first outer ring absorption section 1111 in a closed-pipe shape and a first outer ring mixing section 1112 in a circular pipe shape with a uniform cross section. The diameter of the end of the first outer ring absorption section 1111 distal to the first outer ring mixing section 1112 is larger than the diameter of the end proximal to the first outer ring mixing section 1112. The end of the first outer ring absorption section 1111 with the smaller diameter is communicated with the first outer ring mixing section 1112, and air and fuel gas enter the first outer ring mixing section 1112 through the first outer ring absorption section 1111 to be primarily mixed.

The second outer ring injection tube 112 is integrally formed and includes a second outer ring absorption section 1121 in a closed-tube shape, a second outer ring mixing section 1122 in a circular-tube shape with an equal cross section, and an outer ring diffusion section 1123 in a flared-tube shape, which are sequentially communicated in the airflow direction. The second outer ring mixing section 1122 communicates the end of the second outer ring absorption section 1121 with a smaller diameter with the end of the outer ring diffusion section 1123 with a smaller diameter, so that the second outer ring injection pipe 112 is in a pipe shape that is contracted first and then gradually expanded. The larger diameter end of the second outer ring absorption section 1121 communicates with the first outer ring mixing section 1112. The mixed gas and air primarily mixed by the first outer ring mixing section 1112 enter the second outer ring absorption section 1121, are fully mixed by the second outer ring mixing section 1122, and are diffused by the outer ring diffusion section 1123 to be supplied to the outer ring flame path 200. The injection pipe is set into a pipeline shape which is contracted firstly and then gradually expanded, so that the injection efficiency is improved.

The inner ring injection pipe is also of an integrally manufactured structure and comprises an inner ring diffusion section 123 in a flaring tubular shape, an inner ring mixing section 122 in a uniform section circular tubular shape and an inner ring absorption section 121 in a closing tubular shape, which are sequentially connected in the reverse direction of airflow. The end part with the smaller diameter of the inner ring absorption section 121 and the end part with the smaller diameter of the inner ring diffusion section 123 are respectively communicated with the two ends of the inner ring mixing section 122, so that the inner ring injection pipe is in a pipeline shape with the middle part being small and the two ends being gradually enlarged. The gas and air enter the inner ring mixing section 122 at the middle part through the inner ring absorbing section 121 at the front end and are fully mixed, and then are provided for the inner ring flame channel 210 through the inner ring diffusion section 123 at the rear end.

The length of the inner ring injection pipe is greater than that of the second outer ring injection pipe 112 and is approximately equal to the length occupied by the first outer ring injection pipe 111 and the second outer ring injection pipe 112 after being fixed.

The injection assembly 100 further includes a first end plate 130 and a second end plate 140, the gas supply end of the inner ring injection pipe and the gas supply ends of the 2 second outer ring injection pipes 112 are fixed on the first end plate 130, that is, the end of the second outer ring injection pipe 112 of the 2 outer ring injection pipe assemblies 110 connected with the outer ring flame path and the end of the inner ring injection pipe connected with the inner ring flame path 210 are fixed on the first end plate 130. Correspondingly, the air inlet end of the inner ring ejector pipe and the air inlet ends of the 2 second outer ring ejector pipes 112 are fixed on the second end plate 140, that is, the ends of the second outer ring ejector pipes 112 of the 2 outer ring ejector pipe assemblies 110, which are opposite to the first outer ring ejector pipe 111, and the ends of the inner ring ejector pipes, which are opposite to the inner ring nozzle 320, are fixed on the second end plate 140.

However, since the length of the inner ring ejector is greater than the length of the second outer ring ejector pipe 112, and the inner ring ejector pipe is located between the second outer ring ejector pipes 112 of the 2 outer ring ejector pipe assemblies 110, the second end plate 140 is provided in a shape with a convex middle portion. The first end plate 130 and the second end plate 140 may be modified and varied in shape according to particular needs.

The injection assembly 100 further comprises a reinforcing rib 150, and the reinforcing rib 150 is located between the second end plate 140, the first end plate 130, the inner ring injection pipe and the second outer ring injection pipe 112, and is connected with the second end plate 140, the first end plate 130, the inner ring injection pipe and the second outer ring injection pipe 112 so as to enhance the connection strength between the second end plate 140, the first end plate 130, the inner ring injection pipe and the second outer ring injection pipe 112.

The second end plate 140, the first end plate 130, the inner ring injection pipe, the second outer ring injection pipe 11 and the reinforcing ribs 150 are of an integral structure, so that the disassembly and the assembly are convenient, and the production efficiency is greatly improved. Of course, a separate structure may be provided.

As shown in fig. 5, the eductor assembly 100 further includes more than 2 damper assemblies 170 for regulating the amount of air entering the second outer ring eductor tube 112. The outer ring injection pipe assemblies 110 each include two outer ring injection pipes, the number of the damper assemblies 170 is the same as that of the first outer ring injection pipes 111, that is, the number of the damper assemblies 170 is set according to the number of the first outer ring injection pipes 111, for example, when the number of the first outer ring injection pipes 111 is 2, the number of the damper assemblies 170 is 2, and when the number of the first outer ring injection pipes 111 is 3, the number of the damper assemblies 170 is 2. The outer ring injection pipe assemblies 110 respectively comprise N outer ring injection pipes, and the number of the air door assemblies 170 is N-1.

The air door assembly 170 fixes the air inlet end of the second outer ring ejector pipe 112 and is sleeved on the first outer ring ejector pipe 111. The damper assembly 170 includes a damper blade 172 and a damper panel 171. The damper flap 172 and the damper panel 171 are disposed to overlap, and the damper flap 172 may be adjusted so that the damper flap may rotate with respect to the damper panel 171. The wind door panel 171 and the wind adjusting piece 172 are all sleeved on the first outer ring mixing section 1112, that is, the wind door panel 171 and the wind adjusting piece 172 are all sleeved on the first outer ring injection pipe 111, and the wind door panel 171 is fixed at the end of the second outer ring absorption section 1121, that is, the second outer ring injection pipe 112 is provided with an end close to the first outer ring injection pipe 111. In the circumferential direction along first outer ring induction pipe 111, a plurality of plate holes 1711 are seted up at the wind gate panel 171 interval, and a plurality of through-holes 1721 are seted up at the interval on air adjusting sheet 172, and at the coincidence of plate hole 1711 and through-hole 1721 or partial coincidence, form the air inlet 420 between first outer ring induction pipe 111 and the second outer ring induction pipe 112, the air just can get into in the second outer ring absorption section 1121 of second outer ring induction pipe 112 through-hole 1721 and plate hole 1711.

Therefore, when the air adjusting plate 172 is used, the air adjusting plate 172 rotates relative to the air adjusting plate 171, so that the plate hole 1711 of the air adjusting plate 171 and the through hole 1721 of the air adjusting plate 172 are overlapped, partially overlapped or not overlapped, and the overlapping degree of the plate hole 1711 of the air adjusting plate 171 and the through hole 1721 of the air adjusting plate 172 is adjusted to adjust the air amount entering the second outer ring injection pipe 112. When the coincidence degree of the plate hole 1711 of the air flap plate 171 and the through hole 1721 of the air adjusting piece 172 is large, the formed air inlet 420 can be filled with more air, and when the coincidence degree of the plate hole 1711 of the air flap plate 171 and the through hole 1721 of the air adjusting piece 172 is small, the filled air is small, so that the filled air is matched with the gas quantity, and the efficiency of the gas reaches the highest technical effect.

Draw and penetrate subassembly 100 through setting up the outer loop more than 2, draw every outer loop again and penetrate the subassembly and set up to have the outer loop more than 2 and draw and penetrate the pipe, and, draw and be provided with the air admission mouth between pipe and the nozzle 310 that corresponds at the outer loop, two adjacent outer loops draw and penetrate also the same air admission mouth that is provided with between the pipe, when using, can inhale the air simultaneously through a plurality of air admission mouths, make and inhale sufficient air, carry out the intensive mixing with the gas that gets into, thereby solve to a certain extent and draw and penetrate the air quantity not enough, the problem of gas and air can not be even and intensive mixing, combustion efficiency is improved, the emission of CO and NOx is reduced.

Example two

As shown in fig. 2, 3 and 4, the present application further provides a burner 500, the burner 500 including an eductor assembly 100.

The utility model provides a combustor 500 draws subassembly through setting up the outer loop more than 2, draw every outer loop again and draw the subassembly to set up to have the outer loop more than 2 and draw and penetrate the pipe, and, draw and be provided with the air admission mouth between the pipe and the nozzle 310 that corresponds at the outer loop, two adjacent outer loops draw and penetrate also the same air admission mouth that is provided with between the pipe, when using, can be through a plurality of air admission mouths air intake simultaneously, make and inhale sufficient air, carry out intensive mixing with the gas that gets into, thereby solve to a certain extent and draw and penetrate the air quantity not enough, the problem that gas and air can not be even and intensive mixing, combustion efficiency is improved, reduce CO and NOx's emission.

The burner 500 further comprises a support 160, and an inner ring air inlet channel 162 and an outer ring air inlet channel 161 are formed on the support 160. The outer ring nozzle 310 is communicated with the outer ring air inlet channel 161, fixed on the bracket 160, and the gas is ejected from the outer ring nozzle 310 after passing through the outer ring air inlet channel 161. The inner ring nozzle 320 is fixed to the bracket 160 and communicates with the inner ring intake passage 162, and the gas is ejected from the inner ring nozzle 320 through the inner ring intake passage 162. The number of the outer ring nozzles 310 corresponds to the number of the outer ring injection assemblies, that is, when the number of the outer ring injection assemblies is one, the number of the outer ring nozzles 310 is one, and when the number of the outer ring injection assemblies is two or more, the number of the outer ring nozzles 310 is also two or more. Correspondingly, the number of the inner ring nozzles 320 also corresponds to the number of the inner ring injection assemblies.

When the inner ring injection pipe is not arranged and only the outer ring injection pipe is arranged, the inner ring air inlet channel 162 and the inner ring nozzle 320 are not arranged on the support 160.

The bracket 160 includes a fixing plate 164 and a side wall 163. The outer ring air inlet channel 161 and the inner ring air inlet channel 162 are arranged in the side wall 163, the outer ring air inlet channel 161 and the inner ring air inlet channel 162 are not communicated with each other, one surface of the side wall 163 is opposite to the first outer ring ejector pipe 111 and the inner ring ejector pipe, and the other surface opposite to the first outer ring ejector pipe 111 and the inner ring ejector pipe is opposite to the inner ring ejector pipe. An air inlet is formed in the side wall 163, opposite to the first outer ring injection pipe 111, to introduce fuel gas into the outer ring air inlet channel 161 and the inner ring air inlet channel 162. The middle part of the surface of the side wall 163 opposite to the first outer ring ejector pipe 111 is provided with a fixing hole for fixing the inner ring nozzle 320, and the two side parts are provided with fixing holes for fixing the outer ring nozzle 310.

The fixing plate 164 is fixed to the edge of the surface of the sidewall 163 opposite to the first outer ring ejector pipe 111, and is used to be fixedly connected to an integrated structure formed by the second outer ring ejector pipe 112, the inner ring ejector pipe, the first end plate 130, the second end plate 140, and the reinforcing rib 150. The mounting plate 164 is generally semi-enclosed in configuration.

The surface of the side wall 163 opposite to the first outer ring injection pipe 111 is provided with more than 2 groups of fixing components 165, the number of the fixing components 165 is the same as that of the first outer ring injection pipe 111, that is, the number of the fixing components 165 is 2 when the number of the first outer ring injection pipe 111 is 2, and the number of the fixing components 165 is 3 or more than 3 when the number of the first outer ring injection pipe 111 is 3 or more than 3. Each fixing member 165 includes two or more support columns 1651, and the two or more support columns 1651 are disposed in the circumferential direction of the fixing hole of the corresponding outer ring nozzle 310. The first outer ring injection pipe 111 is provided with lugs 1113 corresponding to the number of the support columns 1651, the lugs 1113 are fixedly connected with the support columns 1651 so as to fix the first outer ring injection pipe 111 on the bracket 160, and an air inlet 410 is formed between the first outer ring injection pipe 111 and the outer ring nozzle 310. After introducing the gas to outer ring nozzle 310, the gas is spouted through outer ring nozzle 310 and is drawn tub 111 to first outer ring, and the gas velocity of flow forms the negative pressure very fast, and outside air can get into the first outer ring of first outer ring through the air admission mouth 410 between nozzle 300 and the first outer ring and draw tub 111 and absorb section 1111 under the effect of negative pressure for gas and air can carry out preliminary mixing in first outer ring mixing section 1112.

The number of the supporting posts 1651 may be adjusted as necessary as long as it is ensured that the air inlet ports 410 capable of sucking a sufficient amount of air are provided between the nozzle 300 and the first outer-ring injection pipe 111.

EXAMPLE III

As shown in fig. 11 and 12, the present application also provides a gas appliance 600, the gas appliance 600 including a burner 500.

As shown in fig. 12 and 14, after the gas is introduced into the outer annular nozzle 310, the gas is injected into the outer annular ejector pipe assembly 110 of the ejector assembly 100 through the outer annular nozzle 310, the gas flow rate is fast, negative pressure is formed, and external air enters through an air inlet between the outer annular nozzle 310 and the outer annular ejector pipe assembly 110 under the action of the negative pressure, so that the gas and the air can be primarily mixed; then the gas after preliminary mixing continues to draw the ejector tube along more than 2 outer rings and jets in proper order and jets out to under the effect of negative pressure, the air draws the air inlet entering between the ejector tube through two adjacent outer rings to mix the gas after preliminary mixing once more, with the mixing intensity of reinforcing gas and air, improve combustion efficiency and heat load.

Inject the subassembly through setting up the outer loop more than 2, it draws the subassembly to set up to have the outer loop more than 2 to draw to penetrate the pipe again to draw every outer loop, and, it is provided with the air admission mouth to draw between tub and the nozzle 310 that corresponds at the outer loop, also the same air admission mouth that is provided with between two adjacent outer loops draw and penetrate the pipe, when using, can be through a plurality of air admission mouths air intake simultaneously, make and inhale sufficient air, carry out the intensive mixing with the gas that gets into, thereby it is not enough to solve to a certain extent to draw the air quantity, gas and air can not be even and the intensive mixing's problem, the combustion efficiency is improved, reduce the emission of CO and NOx.

Referring to fig. 13, the inlet end of the inner ring injector tube is opposite to the inner ring nozzle 320, and the outlet end of the inner ring injector tube is in communication with the inner ring flame path 210. When letting in the gas in the inner ring nozzle 320, the gas spouts through the inner ring nozzle 320 and draws the injection pipe to the inner ring, forms the negative pressure through the gas fast flow, draws to be provided with the air admission mouth through the inner ring and gets into in the inner ring and draw the injection pipe between injection pipe and the inner ring nozzle 320 under the negative pressure effect, makes gas and air mix, draws the injection pipe through setting up the inner ring simultaneously, improves heating efficiency.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Claims (12)

1. The injection assembly is characterized by comprising more than 2 outer ring injection pipe assemblies, each outer ring injection pipe assembly in the outer ring injection pipe assemblies comprises more than 2 outer ring injection pipes which are sequentially communicated, one end of each outer ring injection pipe assembly is communicated with an outer ring flame channel, and the other end of each outer ring injection pipe assembly is opposite to an outer ring nozzle;

and air inlet openings are formed between each outer ring injection pipe assembly and the outer ring nozzle and between two adjacent outer ring injection pipes of each outer ring injection pipe assembly.

2. The eductor assembly of claim 1 wherein each said outer annular eductor assembly comprises:

a first outer ring injection pipe, one end of which is opposite to the outer ring nozzle and the air inlet is arranged between the first outer ring injection pipe and the outer ring nozzle; and

and a second outer ring injection pipe, one end of which is communicated with the outer ring flame passage, the other end of which is communicated with the other end of the first outer ring injection pipe, and the air inlet is arranged between the second outer ring injection pipe and the first outer ring injection pipe.

3. The eductor assembly of claim 2 further comprising an inner annular eductor tube positioned between the first outer annular eductor tube and the second outer annular eductor tube.

4. The eductor assembly of claim 3 wherein the axial centers of said first outer annular eductor tube, said second outer annular eductor tube and said inner annular eductor tube are parallel and non-coplanar.

5. The injector assembly of claim 3, further comprising a first end plate and a second end plate, wherein more than 2 second outer annular injector tubes and inner annular injector tubes have one end secured to the first end plate and another end secured to the second end plate.

6. The eductor assembly as defined in claim 2 further including a damper assembly for adjusting the air intake between said first outer annular eductor tube and said second outer annular eductor tube, said damper assembly being mounted on said first outer annular eductor tube and secured to the end of said second outer annular eductor tube adjacent said first outer annular eductor tube.

7. The ejector assembly of claim 6, wherein the damper assembly comprises:

the air door plate is provided with a plurality of plate holes; and

the air adjusting sheet is stacked with the air door plate, can rotate relative to the air door plate and is provided with a plurality of through holes.

8. A burner comprising the eductor assembly of any one of claims 1-7.

9. The burner of claim 8, including a sidewall defining an outer annular inlet passage in communication with an outer annular nozzle, the outer annular nozzle being secured to the sidewall.

10. The burner of claim 9, wherein the first outer annular eductor tube is secured to the sidewall and defines an air inlet opening between the outer annular nozzle and the first outer annular eductor tube.

11. The burner of claim 10, wherein a support post is disposed on the side wall, and a lug is disposed on the first outer ring eductor tube and is secured to the support post.

12. A gas-fired appliance, characterized in that it comprises a burner according to any one of claims 8 to 11.

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