CN210861098U

CN210861098U - Combustor with improve combustion efficiency

Info

Publication number: CN210861098U
Application number: CN201920817777.5U
Authority: CN
Inventors: 苏慧玲
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-06-26
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a combustor with improve combustion efficiency, including outer loop fire lid, outer loop fire lid is including fire lid body, and this fire lid body's cyclic annular roof and from being formed with the gas mixing chamber between the vertical or slope downwardly extending's of the interior edge of this cyclic annular roof, the outside edge, the outer rampart, its characterized in that: the upper surface of cyclic annular roof is equipped with the water conservancy diversion spare bellied, that is used for water conservancy diversion flue gas from inboard border to outside border, the water conservancy diversion spare is followed the circumference interval of cyclic annular roof is provided with two at least, compares with prior art, the utility model has the advantages of following, foretell space interval has been filled on the one hand to the water conservancy diversion spare of evagination for the heat energy that the combustor burning produced or the area of contact grow of flue gas and the bottom of a boiler makes flame fully carry out effectual heat exchange with the bottom of a boiler, and the water conservancy diversion spare on the other hand of evagination then can also derive the flue gas, and is too big in order to avoid the combustor to.

Description

Combustor with improve combustion efficiency

Technical Field

The utility model relates to a combustor of gas cooking utensils especially relates to a combustor for gas-cooker.

Background

At present, the fire cover of a gas stove usually comprises an inner ring fire cover and an outer ring fire cover, the heating mode of the fire cover to a pot body is basically the mode of combining an outer ring flame and an inner ring flame, but the center of the fire ring still has no flame, which can cause the heating effect of the center position of the pot bottom to be poor, therefore, the applicant provides an inner ring fire cover which can integrate an inner ring and a middle ring into a whole and can vertically and upwardly directly spray burning flame, and the burner of the domestic gas stove, like the Chinese utility model with the patent number ZL201420412292.5 (the granted number is CN204063043U), the body of the fire cover is provided with an inner ring wall and an outer ring wall, a central through hole is formed in the center of the inner ring wall, an annular channel is formed between the inner ring wall and the outer ring wall, a through hole is formed at the bottom of the annular channel, and the upper cover is of a sheet structure with meshes, the structure can lead the combustion of the inner ring fire cover to be concentrated, and the heat loss brought away by the secondary air is less, so the combustion temperature is higher, and the heat efficiency is better; however, since the inner ring fire cover is directly injected vertically upwards, the flow rate of the mixed gas is too high, so that the center of the cooker is easy to blacken, and further improvement on the burner is needed.

The burner of household gas cooker is a burner designed according to partial premixing mode, its primary air coefficient is 0< α < 1. the atmospheric burner is divided into two parts of head and injector, the injector is used for injecting primary air required for combustion, the burner head is used for uniformly distributing gas and air mixture on fire holes and stably and completely burns.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that provides an effective water conservancy diversion flue gas's combustor that has improvement combustion efficiency to above-mentioned prior art current situation.

The utility model aims to solve the second technical problem that to above-mentioned prior art current situation and provide one kind and had both had the thermal-arrest to gather the energy effect, was favorable to having of the abundant burning of gas to improve the combustor of combustion efficiency again.

For solving the first technical problem, the utility model discloses the technical scheme who adopts is: this combustor with improve combustion efficiency, including outer ring fire lid, outer ring fire lid is including fire lid body, and the annular roof of this fire lid body is formed with gas mixing chamber, its characterized in that between the interior rampart, the outer rampart that extend downwards that incline are vertical or slope from inboard edge, the outside edge of this annular roof: the upper surface of annular roof is equipped with bellied, the water conservancy diversion spare that is used for water conservancy diversion flue gas from inboard border to outside border, the water conservancy diversion spare is followed the circumference interval of annular roof is provided with two at least, the water conservancy diversion spare has the export that supplies the flue gas outflow.

In order to realize that the flow guide piece has the function of containing overflowing liquid besides the function of guiding smoke, the flow guide piece is in a V shape with an opening facing the edge of the outer side.

Furthermore, the flow guide piece comprises a first flow guide edge and a second flow guide edge which form a V shape, a gap is formed between the second flow guide edge and the first flow guide edge which is adjacent to the second flow guide edge, and the gap forms an outlet through which smoke flows out. The flue gas can flow out from the gap between the second flow guide edge and the first flow guide edge adjacent to the second flow guide edge.

Furthermore, the joint end of the first flow guide edge and the second flow guide edge is located at the middle tip end of the V shape, and the first flow guide edge, the second flow guide edge and the gap between the first flow guide edge and the second flow guide edge form a liquid containing area for containing overflowing liquid.

In order to prolong the time for discharging the smoke from inside to outside along the flow guide piece, the second flow guide edge is in an outward convex arc shape which is gradually and smoothly inclined upwards from the common connection end to the outer side end.

Similarly, in order to prolong the time for discharging the smoke from inside to outside along the flow guide part, the first flow guide edge comprises an inclined section which extends upwards in an inclined way from the joint end and an outer convex arc section which continues to extend towards the horizontal direction far away from the second flow guide edge.

In order to prevent overflowing liquid from flowing out from inside to outside after entering the flow guide piece, an inward convex arc-shaped section is arranged between the joint end and the inclined section.

Further, the distance between the outer edge of the first flow guide edge and the inner ring wall is larger than the distance between the outer edge of the second flow guide edge and the inner ring wall, and the difference between the distances of the first flow guide edge and the second flow guide edge forms an inlet of overflowing liquid entering the liquid containing area.

To solve the second technical problem, it is preferable that the burner further comprises;

a base having a central air supply passage extending vertically therethrough;

the connecting body is arranged on the base and comprises a plate body, and the central position of the plate body is provided with a vertical annular cavity corresponding to the air supplementing channel;

the guide spiral body is arranged on the connecting body, comprises a guide spiral body for guiding gas, and has a spiral angle of at least 360 degrees in each circle from the center to the periphery, a gap is reserved between at least two adjacent circles of the guide spiral body, the peripheral wall of the guide spiral body is a circumferential groove, an opening for gas to enter is formed in the circumferential groove, and the spiral surface of the guide spiral body is an opening with an upward opening; wherein the gap is communicated with the annular cavity and the air replenishing channel;

the mesh type fire cover covers the guide spiral body; and

the outer ring fire cover is arranged on the connecting body, and the inner ring wall is tightly pressed and fixed with the circumferential groove of the guide spiral body.

Furthermore, the periphery of the base is provided with a gas channel, and correspondingly, the periphery of the plate body of the connecting body is provided with at least one through hole for gas of the gas channel to enter the gas mixing chamber.

In order to realize that the burner heats the pot bottom more uniformly, the outer ring wall is provided with fire outlets communicated with the gas mixing chamber at intervals along the circumferential direction.

In order to enable a user to separately control the central fire formed by the inner ring part of the burner and the peripheral fire formed by the outer ring part, the lower surface of the top wall extends downwards to the partition plate of the connecting body, the partition plate divides the gas mixing chamber into an inner ring gas mixing chamber and an outer ring gas mixing chamber which are relatively independent and located on the inner side and the outer side, the fire outlet is communicated with the outer ring gas mixing chamber, and the guide spiral body corresponds to the inner ring gas mixing chamber. Because the guide spiral body corresponds to the inner ring air mixing chamber, and the guide spiral body is arranged on the inner ring corresponding to the mesh fire cover, on one hand, the speed and the uniformity of the gas entering the mesh fire cover are increased because the gas is radially led into the gas and is uniformly distributed along the circumferential direction of the spiral ring, and on the other hand, under the action of the mesh fire cover, the gas and the air entering at intervals through the guide spiral body can change the flowing direction and flow towards the periphery, thereby being beneficial to more uniform distribution of the gas and the air on the mesh fire cover.

Further, the base is also provided with a flow guide channel which can guide the secondary air in the air supplement channel to the outside of the outer ring wall.

Compared with the prior art, the utility model has the advantages that the utility model provides a combustor with improved combustion efficiency is provided, the annular roof of the outer ring fire lid of the combustor is provided with the diversion piece for guiding the flue gas, because the pan is arranged on the pan bracket for heating, a certain space interval is provided between the pan and the combustor, thus the heat energy generated by the combustion of the gas is used for heating the pan, and a considerable part of the heat energy is escaped to the surrounding environment, which causes the energy waste; the convex guide part fills the space interval, so that the contact area between heat energy or smoke generated by combustion of the burner and the pan bottom is increased, the flame can fully perform effective heat exchange with the pan bottom, and the convex guide part can guide the smoke out to avoid overlarge internal pressure of the burner in the combustion process, reduce the loss of the flame and prevent the heat energy from radiating to the kitchen space.

Drawings

FIG. 1 is a schematic structural diagram of a burner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a schematic structural view of an angle of the guiding screw according to the embodiment of the present invention;

fig. 5 is a schematic structural view of another angle of the guiding screw according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a connector according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 6, the preferred embodiment of the present invention is shown. This combustor with improve combustion efficiency in this embodiment, including outer ring fire lid 60, outer ring fire lid 60 is including the fire lid body, be formed with the gas mixing chamber 6 between the cyclic annular roof 61 of this fire lid body and the interior border from this cyclic annular roof 61, the vertical or slope downwardly extending's of outside edge inner ring wall 63, the outer ring wall 62, the upper surface of cyclic annular roof 61 is equipped with bellied, the water conservancy diversion spare 8 that is used for water conservancy diversion flue gas from inboard border to outside border, water conservancy diversion spare 8 is provided with at least two along the circumference interval of cyclic annular roof 61. Because the pot is arranged on the pot bracket for heating, and a certain space interval is formed between the pot and the burner, the heat energy generated by gas combustion is used for heating the pot, and a considerable part of the heat energy is released to the surrounding environment, thereby causing energy waste; the convex guide part 8 fills the space interval, so that the contact area between the heat energy or the smoke generated by the combustion of the burner and the pan bottom is increased, the flame can fully perform effective heat exchange with the pan bottom, and the convex guide part 8 can guide the smoke out to avoid overlarge internal pressure of the burner in the combustion process, reduce the loss of the flame and prevent the heat energy from radiating to the kitchen space.

In order to realize that the flow guide piece 8 has the function of containing overflowing liquid besides the function of guiding smoke, the flow guide piece 8 is in a V shape with an opening facing to the outer side edge. Furthermore, the flow guiding element 8 comprises a first flow guiding edge 81 and a second flow guiding edge 82 which form a V shape, a gap 83 is formed between the second flow guiding edge 82 and the adjacent first flow guiding edge 81, the gap 83 forms an outlet for smoke to flow out, and the smoke can flow out from the gap 83 between the second flow guiding edge 82 and the adjacent first flow guiding edge 81. The joint end 84 of the first flow guiding edge 81 and the second flow guiding edge 82 is located at the middle tip part of the V shape, and the first flow guiding edge 81, the second flow guiding edge 82 and the gap 85 between the two flow guiding edges form a liquid containing area for containing overflowing liquid. In order to prolong the time for discharging the smoke from inside to outside along the diversion member, the second diversion edge 82 is in an outward convex arc shape which is gradually and smoothly inclined upwards from the common connection end 84 to the outer side end. Similarly, to achieve a longer time for the flue gas to exit from the inside to the outside along the flow guide member 8, the first flow guide edge 81 includes an inclined section 811 extending obliquely upward from the common end 84 and an outwardly convex curved section 812 extending continuously in a horizontal direction away from the second flow guide edge 82. In order to prevent the overflowing liquid from flowing out from the inside to the outside after entering the flow guide piece 8, an inward convex arc-shaped section 813 is arranged between the joint end 84 and the inclined section 811. In order to better supply the overflowing liquid to enter the liquid containing area of the flow guide member 8, the distance between the outer edge of the first flow guide edge 81 and the inner annular wall 63 is greater than the distance between the outer edge of the second flow guide edge 82 and the inner annular wall 63, and the difference between the distances between the first flow guide edge 81 and the second flow guide edge 82 forms the inlet of the overflowing liquid into the liquid containing area.

In this embodiment, the burner further includes a base 3 having a central air supply channel 31 penetrating up and down, and a connecting body 4 disposed on the base 3, where the connecting body 4 includes a plate body, the central position of the plate body has a vertical annular cavity 41 corresponding to the air supply channel 31, a guide spiral body 1 disposed on the connecting body 4, the guide spiral body 1 includes a guide spiral body 1 for guiding fuel gas, a spiral angle of each circle of the guide spiral body 1 is at least 360 ° from the center to the periphery, a gap 84 is left between at least two adjacent circles of the guide spiral body 1, the peripheral wall of the guide spiral body 1 is a circumferential groove 13, the circumferential groove 13 has an opening 131 for fuel gas to enter, and the spiral surface of the guide spiral body 1 is an opening 111 with an upward opening; wherein, the interval 12 is communicated with the annular cavity 41 and the air supplement channel 31, and the interval is communicated with the annular cavity and the air supplement channel; and a mesh type fire cover 5 covered on the guide spiral body 1 and an outer ring fire cover arranged on the connecting body 4 are also included, and the inner ring wall 63 of the outer ring fire cover 60 is pressed and fixed with the circumferential groove of the guide spiral body. The design is more suitable for the mesh type fire cover 5, and the gas and the air entering through the interval 12 of the guide spiral body 1 can change the flowing direction to flow towards the periphery under the action of the mesh type fire cover 5, thereby being beneficial to ensuring that the gas and the air are more uniformly distributed on the mesh type fire cover 5. In order to achieve a speed of introducing the gas from the outer edge to the center along the spiral advancing direction of each circle of the guide screw body 1 to be slower than the direct vertical upward inflow, it is possible to prevent the phenomenon that the gas is easily burned on the bottom of the black pan due to the gas flowing out vertically upward at the center of the mesh-type fire holes adapted to the guide screw body 1, and preferably, the guide screw body 1 is a single-end spiral.

Wherein, the periphery of the base 3 is provided with a gas channel, and correspondingly, the periphery of the plate body of the connecting body 4 is provided with at least one through hole 42 for the gas of the gas channel to enter the gas mixing chamber 6. In order to realize that the burner heats the bottom of the pan more uniformly, the outer annular wall 62 is provided with fire holes 621 communicated with the gas mixing chamber at intervals along the circumferential direction.

Finally, in order to enable the user to control the central fire formed by the inner ring part of the burner and the outer fire formed by the outer ring part of the burner separately, the lower surface of the top wall 61 extends downwards to the partition plate 612 of the connecting body, the partition plate 612 divides the gas mixing chamber 6 into an inner ring gas mixing chamber 65 positioned at the inner side and an outer ring gas mixing chamber 66 positioned at the outer side which are relatively independent, the fire outlet 621 is communicated with the outer ring gas mixing chamber 66, the guide spiral body 1 corresponds to the inner ring gas mixing chamber 65, the guide spiral body 1 is arranged at the inner ring corresponding to the mesh type fire cover 5, on one hand, the speed and the uniformity of gas entering the mesh type fire cover 5 are increased because the gas is introduced into the gas in the radial direction and is uniformly distributed along the circumferential direction of the spiral ring, on the other hand, under the action of the mesh type fire cover 5, the, the gas and air are more uniformly distributed on the mesh type fire cover 5. And the base 3 is further provided with a guide passage 7 for guiding the secondary air in the air supply passage 31 to the outside of the outer annular wall 62.

As described above, the path of the primary air, gas and mixed primary air and gas inside the burner is as follows, in order to enable the user to control the central fire and the outer peripheral fire independently, the gas passage 32 of the base 3 is divided into the inner ring gas passage 321 communicated with the inner ring gas mixing chamber 65 and the outer ring gas passage 322 communicated with the outer ring gas mixing chamber 66, the primary air and gas required for the central fire formed by the mesh type fire cap 5 are introduced into the inner ring gas mixing chamber 65 from the inner ring gas passage 321, are introduced into the respective spiral coils 11 from the center to the outer periphery through the guide spiral bodies 1, and are uniformly distributed along the circumferential direction of the spiral coils 11, and are sequentially and alternately introduced into the air in the spaces 12 between the spiral coils 11 of each guide spiral body 1, and are uniformly distributed one by one around the corresponding spiral coils 11, and the primary air and gas required for the outer peripheral fire are introduced into the outer ring gas mixing chamber 66 from the outer ring gas passage 32 and then flow into the fire outlet 621, the fire outlet 621 is ignited with the external secondary air to form the peripheral fire, if the sizes of the peripheral fire and the central fire are to be adjusted, the adjusting valve connected to the air inlet end of the input channel is adjusted, wherein the liquid containing piece 8 on the top wall 61 can increase the contact area between the heat energy or the smoke generated by the combustion of the burner and the bottom of the boiler, so that the flame can fully perform effective heat exchange with the bottom of the boiler, and simultaneously, the loss of flame can be reduced, the radiation of the heat energy to the space of the kitchen is prevented, and finally, the secondary air is supplemented to the fire outlet 621 from inside to outside, and the base 3 is also provided with a flow guide channel 7 which can guide the secondary air in the air supplementing channel 31 to the outside of the outer.

Claims

1. A combustor with improved combustion efficiency, including outer ring fire lid (60), outer ring fire lid (60) is including fire lid body, is formed with gas mixing chamber (6) between the cyclic annular roof (61) of this fire lid body and the interior rampart (63), the outer rampart (62) that extend downwards from the inboard edge, the outside edge of this cyclic annular roof are vertical or slope, its characterized in that: the upper surface of annular roof (61) is equipped with bellied, the water conservancy diversion spare (8) that are used for the water conservancy diversion flue gas from inboard border to outside border, water conservancy diversion spare (8) are followed the circumference interval of annular roof (61) is provided with two at least, water conservancy diversion spare (8) have the export that supplies the flue gas outflow.

2. The burner with improved combustion efficiency as claimed in claim 1, wherein: the flow guide piece (8) is V-shaped, and an opening of the flow guide piece faces the outer side edge.

3. The burner with improved combustion efficiency as claimed in claim 2, wherein: the flow guide piece (8) comprises a first flow guide edge (81) and a second flow guide edge (82) which form a V shape, a gap (84) is formed between the second flow guide edge (82) and the first flow guide edge (81) adjacent to the second flow guide edge, and the gap (84) forms an outlet for the smoke to flow out.

4. The burner with improved combustion efficiency as claimed in claim 3, wherein: the joint end (83) of the first flow guide edge (81) and the second flow guide edge (82) is located at the middle tip end of the V shape, and the first flow guide edge (81), the second flow guide edge (82) and a gap (85) between the first flow guide edge and the second flow guide edge form a liquid containing area for containing overflowing liquid.

5. The burner with improved combustion efficiency as claimed in claim 4, wherein: the second flow guide edge (82) is in an outward convex arc shape which gradually and smoothly inclines upwards from the common connection end (83) to the outer side end.

6. The burner with improved combustion efficiency as claimed in claim 5, wherein: the first flow guiding edge (81) comprises an inclined section (811) extending from the joint end in an upward inclined manner and an outer convex arc section (812) continuously extending towards the horizontal direction far away from the second flow guiding edge.

7. The burner with improved combustion efficiency as claimed in claim 6, wherein: an inward convex arc-shaped section (813) is arranged between the joint end (83) and the inclined section (811).

8. The burner with improved combustion efficiency as claimed in claim 7, wherein: the distance between the outer edge of the first flow guide edge (81) and the inner annular wall (63) is larger than the distance between the outer edge of the second flow guide edge (82) and the inner annular wall (63), and the difference between the distances of the first flow guide edge (81) and the second flow guide edge (82) forms an inlet of overflowing liquid entering the liquid containing area.

9. The burner with improved combustion efficiency as claimed in any one of claims 1 to 8, wherein: comprises the following steps of;

a base (3) having a central air supply passage (31) extending vertically therethrough;

the connecting body (4) is arranged on the base (3) and comprises a plate body, and the central position of the plate body is provided with a vertical annular cavity (41) corresponding to the air supplement channel (31);

the guide spiral body (1) is arranged on the connecting body (4), the guide spiral body comprises a guide spiral body (1) for guiding gas, the spiral angle of each circle of the guide spiral body (1) is at least 360 degrees from the center to the periphery, a gap is reserved between at least two adjacent circles of the guide spiral body (1), the peripheral wall of the guide spiral body (1) is a circumferential groove (13), an opening (131) for gas to enter is formed in the circumferential groove (13), and the spiral surface of the guide spiral body (1) is an opening part (111) with an upward opening; wherein the space (12) is in communication with the annular chamber (41), an air replenishment channel (31);

the mesh type fire cover (5) covers the guide spiral body (1); and

the outer ring fire cover (60) is arranged on the connecting body (4), and the inner ring wall (63) is pressed and fixed with the circumferential groove (13) of the guide spiral body (1).

10. The burner with improved combustion efficiency as claimed in claim 9, wherein: the periphery of the base (3) is provided with a gas channel (32), and correspondingly, the periphery of the plate body of the connecting body (4) is provided with at least one through hole (42) for the gas of the gas channel (32) to enter the gas mixing chamber (6).

11. The burner with improved combustion efficiency as claimed in claim 10, wherein: the outer annular wall (62) is provided with fire outlets (621) communicated with the gas mixing chamber (6) at intervals (12) along the circumferential direction.

12. The burner with improved combustion efficiency as claimed in claim 11, wherein: the lower surface of the top wall (61) extends downwards to a partition plate (612) of the connecting body (4), the partition plate (612) divides the gas mixing chamber (6) into an inner ring gas mixing chamber (65) which is relatively independent and positioned at the inner side and an outer ring gas mixing chamber (66) which is positioned at the outer side, the fire outlet holes (621) are communicated with the outer ring gas mixing chamber (66), and the guide spiral body (1) corresponds to the inner ring gas mixing chamber (65).

13. The burner with improved combustion efficiency as claimed in any one of claims 10 to 12, wherein: the base (3) is also provided with a flow guide channel (7) which can guide the secondary air in the air supplement channel (31) to the outside of the outer ring wall (62).