CN107339696B - Anti-blocking central fire cover and combustor with same - Google Patents
Anti-blocking central fire cover and combustor with same Download PDFInfo
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- CN107339696B CN107339696B CN201710281728.XA CN201710281728A CN107339696B CN 107339696 B CN107339696 B CN 107339696B CN 201710281728 A CN201710281728 A CN 201710281728A CN 107339696 B CN107339696 B CN 107339696B
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- flange
- barrel
- fire cover
- fire
- end cap
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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
- F23D14/46—Details, e.g. noise reduction means
Abstract
The utility model provides a prevent blockking up central fire lid, includes barrel (2) and locates or end cap (1) of integrated into one piece on barrel (2), fire hole (21) have been seted up to aforementioned barrel (2) perisporium, its characterized in that end cap (1) top surface has around the edge and restricts retaining ring (11) that overflow liquid spills over, and, set up drainage mouth (12) of at least one guide overflow liquid outflow end cap (1) on this retaining ring (11), barrel (2) have protruding flange (22) in barrel (2) lateral wall around fire hole (21), and this flange (22) lateral surface forms can accept water conservancy diversion face (25) of the overflow liquid that drainage mouth (12) flowed, and this water conservancy diversion face (25) are located aforementioned drainage mouth (12) below. The invention also discloses a burner with the central fire cover. Compared with the prior art, the invention has the advantages that: the flange is arranged to produce the effects of blockage prevention, easy cleaning and high thermal efficiency.
Description
Technical Field
The invention relates to a part of a combustor, in particular to a central fire cover of the combustor, and also discloses the combustor applying the central fire cover.
Background
The existing atmospheric burner is generally a single ring fire cover or two fire covers of an inner ring and an outer ring, and realizes the functions of generating flame, maintaining flame and the like together with elements such as an ignition needle, a thermocouple (or an ion induction needle with the same function) and the like.
The surface of an inner ring fire cover in a traditional single ring fire cover or two inner and outer ring fire covers has the risk that water at the bottom of a boiler and long-term oil stain at the bottom of the boiler enter a flame hole to block the fire cover hole. There are many published documents of such fire covers, such as a central fire cover of a gas stove (publication number: CN 201196416Y) in chinese utility model with patent number ZL200720310794.7, a stove burner with integrated central fire cover and long open fire hole (publication number: CN 201327036Y) in chinese utility model with patent number ZL200820206310.9, and a stove burner with improved central fire cover (publication number: CN 201289081Y) in chinese utility model with patent number ZL 200820204.0. The basic structure of the existing central fire cover comprises a cylinder body and an end cap arranged on the cylinder body or integrally formed on the cylinder body, wherein fire holes are formed in the peripheral wall of the cylinder body, and the end cap is arranged substantially horizontally.
When the blocked fire hole corresponds to the vicinity of the ignition needle, the gas stove is not ignited, and when the blocked fire hole corresponds to the vicinity of the thermocouple (or the ion induction needle with the same function), the gas stove cannot maintain flame. The structure is mainly characterized in that the upper surface of an inner ring fire cover in a traditional single ring fire cover or two fire covers of an inner ring and an outer ring is flat, or a section of plane at the center and an outward inclined plane at a section of inclined plane at the outer ring are added, or the whole surface of the inner ring fire cover is of a structure with a convex middle part and a high outer ring, and when water at the bottom of a pot or oil stain at the bottom of the pot drips on the surface of the fire cover and accumulates to a certain extent to break through the surface tension, the water or the oil stain can be guided to flame holes along any direction of the fire cover.
To this end, the applicant previously disclosed an improved central fire cover, see the chinese patent application with application No. 201010135138.4, which discloses a central fire cover for a gas cooker and a burner using the same (application publication No. CN 101832560A), in which the top surface of an end cap has a baffle ring around the edge to limit overflow liquid from overflowing, and the baffle ring is opened with an opening to guide the overflow liquid to flow out. However, in the practical application process, the overflow liquid flowing out of the opening still passes through the fire hole along the lower edge, so that the possibility of blockage exists, and the problem of blockage of the fire hole cannot be thoroughly solved.
Disclosure of Invention
The invention aims to solve the technical problem of additionally providing an anti-blocking central fire cover aiming at the technical current situation.
The invention aims to solve the technical problem of providing an anti-blocking central fire cover which is easy to clean and high in heat efficiency.
The invention aims to solve the technical problem of providing a burner with an anti-blocking central fire cover.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a prevent blockking up central fire lid, includes the barrel and locates or integrated into one piece is the end cap on the barrel, and fire hole has been seted up to aforementioned barrel perisporium, its characterized in that the end cap top surface has the retaining ring that restriction overflow liquid spilled over around the edge to, set up the drainage mouth that at least one guide overflow liquid flows out the end cap on this retaining ring, the barrel has protruding flange in the barrel lateral wall around fire hole, and this flange lateral surface forms the water conservancy diversion face that can accept the overflow liquid that the drainage mouth flows, and this water conservancy diversion face is located aforementioned drainage mouth below.
The top end of the flange is arranged close to the drainage port, a liquid holding groove is formed between the top end of the flange and the side wall of the cylinder, and a liquid outlet of the liquid holding groove is connected with the inflow end of the flange flow guide surface. The liquid holding tank plays a role in holding and opening the liquid holding tank, and overflow liquid can be prevented from splashing.
Furthermore, the bottom surface of the liquid receiving groove is gradually and obliquely arranged from outside to inside.
In order to ensure that the overflow liquid is left along the flow guide surface, the flow guide surface of the flange inclines inwards to form an included angle with the side wall of the cylinder body, and the included angle is an acute angle, or the joint of the inner side of the flow guide surface of the flange and the side wall of the cylinder body is concave.
The fire hole including the last fire hole and the lower fire hole of arranging from top to bottom, two-layer and cross arrangement are on the barrel about aforementioned last fire hole and lower fire hole, last fire hole and adjacent lower fire hole set up on same flange, and, the space region between the flange forms the air and supplies the district. The formation of air supply area can provide sufficient air in the combustion process, makes the gas combustion more abundant to improve the thermal efficiency, reduce the flue gas.
Furthermore, the end cap radially stretches out of the outer side wall of the barrel body, a convex ring protruding out of the outer wall of the barrel body is arranged below the flange on the outer side wall of the barrel body, and an air supply area is defined by the outer end of the end cap, the convex ring and the flange.
Preferably, the flange upper side edge forms an inclined flow guide surface. The inclined guide surface ensures that the overflow liquid flows along the outer wall of the flange from top to bottom to the liquid bearing disc of the burner.
Preferably, the drainage openings are arranged in a plurality of spaced-apart intervals.
Furthermore, the inner side surface of the retainer ring is provided with a flow guide end surface which is inclined inwards.
To ensure that soup does not accumulate on the end cap, the top surface of the end cap is convex in the middle and inclined radially towards the periphery.
The utility model provides a prevent combustor of jam center fire lid, includes base, center fire lid, outer fire lid, ignition needle and thermocouple, the base have and draw and penetrate the pipe, center fire lid and outer fire lid are located and are constituteed interior combustion chamber and outer combustion chamber respectively on the base, ignition needle and thermocouple vertically set up on the base and lie in between center fire lid and the outer fire lid.
A protective cover for covering the ignition needle is formed on one side of the end cap, and correspondingly, the ignition needle is positioned below the protective cover.
Compared with the prior art, the invention has the advantages that: firstly, overflow liquid enters a flow guide surface of a flange from a flow guide port and finally flows onto a liquid bearing disc in the combustor, and the overflow liquid avoids fire holes through the flange and is not contacted with the fire holes from beginning to end, so that the fire holes are prevented from being blocked; secondly, due to the arrangement of the flange, the fire hole and the side wall of the cylinder are not positioned on the same curved surface, overflow liquid is basically on the side wall of the cylinder, cleaning can be completed only by wiping the overflow liquid with a rag along the peripheral surface of the flange during cleaning, and overflow liquid impurities stuck on the rag cannot enter the fire hole in the wiping process, so that the fire hole is ensured to be smooth; moreover, a plurality of air supply areas are formed between the flanges, which is beneficial to full combustion of gas, improves the heat efficiency, and reduces the smoke and the energy consumption; finally, the flange sets up around the fire hole, and in the combustion process, the flange temperature is higher than barrel outer wall temperature, and the air supply district exists simultaneously, and after flame-out, the flange is easy to the heat dissipation all around for the whole cooling rate of central fire lid improves greatly, does benefit to the user and clears up central fire lid as early as possible.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1.
Fig. 2 is a schematic view of another structure in accordance with embodiment 1.
Fig. 3 is a perspective sectional view of embodiment 1.
FIG. 4 is a reference diagram showing the use state of the embodiment 1.
FIG. 5 is a schematic structural diagram of example 2.
FIG. 6 is a schematic structural diagram of embodiment 3.
Fig. 7 is a schematic structural view of embodiment 4.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Embodiment 1, as shown in fig. 1 and 2, the central anti-clogging fire cover in this embodiment includes a cylinder 2 and an end cap 1 integrally formed on the cylinder 2, a fire hole 21 is formed in a peripheral wall of the cylinder 2, a protective cover 13 for covering an ignition needle 32 is formed on one side of the end cap 1, a top surface of the end cap 1 protrudes from a middle portion and is inclined radially toward a periphery (see fig. 3), a retaining ring 11 for limiting overflow liquid from overflowing is provided on a peripheral edge of the top surface of the end cap 1, and an inner side surface of the retaining ring 11 has an inwardly inclined flow guide end surface. Set up 3 drainage mouths 12 that guide overflow liquid to flow out end cap 1 on the retaining ring 11, drainage mouth 12 interval arrangement, barrel 2 has the flange 22 of protruding in barrel 2 lateral wall around fiery hole 21, and this flange 22 lateral surface forms the water conservancy diversion face 25 that can accept the overflow liquid that drainage mouth 12 flows out, and this water conservancy diversion face 25 is located drainage mouth 12 below. The upper side edge of the flange 22 forms an inclined deflector surface 25 from top to bottom.
The top end of the flange 22 is arranged close to the drainage port 12, and a liquid receiving groove 221 is formed between the top end of the flange 22 and the side wall of the barrel 2, and the liquid outlet of the liquid receiving groove 221 is connected with the inflow end of the diversion surface 25 of the flange 22. The bottom surface of the liquid-receiving groove 221 is gradually inclined from outside to inside.
The connection part of the inner side of the guide surface 25 of the flange 22 and the side wall of the cylinder body 2 is concave. Therefore, the overflow liquid of soup and the like can only flow down along the inner and outer diversion surfaces after flowing to the diversion surface, and can not flow into the fire hole from the outer side. Of course, the following can also be provided: the deflector surface 25 of the flange 22 is inclined inwardly to form an acute angle with the side wall of the barrel 2, all in order to ensure that overflow does not flow into the fire hole.
The fire hole 21 in this embodiment includes an upper fire hole and a lower fire hole which are arranged up and down, the upper fire hole and the lower fire hole are arranged up and down in two layers and are arranged on the cylinder 2 in a crossing manner, the upper fire hole and an adjacent lower fire hole are arranged on the same flange 22, and an air supply region 23 is formed in a space region between the flanges 22. Referring to fig. 2 and 3, the end cap 1 extends radially outside the barrel 2, a convex ring protruding from the outer wall of the barrel 2 is disposed below the flange 22 on the outer wall of the barrel 2, and an air supply area 23 is defined by the outer end of the end cap 1, the convex ring and the flange 22.
As shown in fig. 4, in order to have the burner of embodiment 1, the basic structure includes a base 4, a central fire cover 10, an outer fire cover 3, an ignition needle 32 and a thermocouple 31, the base 4 has an injection pipe, the central fire cover 10 and the outer fire cover 3 are arranged on the base 4 to respectively form an inner combustion chamber and an outer combustion chamber, the ignition needle 32 and the thermocouple 31 are longitudinally arranged on the base 4 and located between the central fire cover 10 and the outer fire cover 3, and the ignition needle 32 is located at a position below a protection cover 13.
The flange is designed to skillfully avoid the problem that the hole is blocked by the soup, namely, the soup can only touch the side wall of the flange after flowing down from the notch, and the side wall of the flange is designed to be inclined, so that the soup can only flow into the flange along the inclined plane after flowing into the side wall of the flange and can not flow into the fire hole along the outer side of the flange.
The fire hole is well separated from the outer wall of the barrel body by the flange and is not on a curved surface, so that the soup is basically on the outer wall of the barrel body, and the outer wall of the barrel body is cleaned only by wiping the outer wall of the barrel body with scouring pad along the edge of the flange.
Sufficient air supply in the air supply area formed between the flanges can enable the combustion state of gas to be more sufficient, improve the heat efficiency and reduce the smoke.
The air that the outer wall of flange and barrel has increased is mended the district, because the outer wall of barrel is not on a curved surface with the fire hole, the temperature in combustion process fire hole is higher than the temperature of the outer wall of barrel, and the temperature of the outer wall of barrel is lower promptly, and the cooling of fire hole can be mended the district release heat to the air simultaneously, has improved the cooling rate of fire lid greatly, consequently does benefit to the user and manages sooner.
In embodiment 2, as shown in fig. 5, in this embodiment, one of the upper fire holes is separately formed on one flange 22, the diversion surface 25 is located on the periphery of the flange, the other upper fire hole and two adjacent lower fire holes are formed on the same flange 22, and the diversion surface 25 is located on both sides of the flange. Other structures refer to example 1.
Example 4, as shown in fig. 7, the number of the drainage openings 12 in this example is 5, and they are arranged at intervals, and the other structure is referred to example 1.
Claims (12)
1. The utility model provides a prevent blockking up central fire lid, includes barrel (2) and locates or end cap (1) of integrated into one piece on barrel (2), fire hole (21) have been seted up to aforementioned barrel (2) perisporium, its characterized in that end cap (1) top surface has retaining ring (11) that restriction overflow liquid spilled over around the edge, and, set up drainage mouth (12) of at least one guide overflow liquid outflow end cap (1) on this retaining ring (11), barrel (2) have protruding flange (22) in barrel (2) lateral wall around fire hole (21), and this flange (22) lateral surface forms water conservancy diversion face (25) that can accept the overflow liquid that drainage mouth (12) flowed, and this water conservancy diversion face (25) are located aforementioned drainage mouth (12) below.
2. The central fire lid of claim 1, wherein the top end of the flange (22) is disposed near the drainage port (12), and a liquid receiving groove (221) is formed between the top end of the flange (22) and the side wall of the barrel (2), and the liquid outlet of the liquid receiving groove (221) is connected with the inflow end of the diversion surface (25) of the flange (22).
3. The anti-clogging center fire cover according to claim 2, wherein the bottom surface of the liquid-holding groove (221) is arranged to be gradually inclined from outside to inside.
4. The central fire cover according to claim 1, wherein the flow guiding surface (25) of the flange (22) is inclined inward to form an acute angle with the side wall of the barrel (2), or the joint of the inner side of the flow guiding surface (25) of the flange (22) and the side wall of the barrel (2) is concave.
5. Anti-clogging central fire cover according to claim 1, characterized in that said fire holes (21) comprise upper and lower fire holes arranged one above the other and crosswise arranged on the cylindrical body (2), said upper fire holes and adjacent lower fire holes being opened on the same flange (22), and the spatial area between said flanges (22) forming an air supply area (23).
6. The central fire lid of claim 5, characterised in that the end cap (1) extends radially beyond the outer side wall of the barrel (2), the outer side wall of the barrel (2) is provided with a collar protruding from the outer wall of the barrel (2) below the flange (22), and the outer end of the end cap (1), the collar and the flange (22) define an air supply region (23).
7. Anti-clogging central fire cover according to claim 1, characterised in that the upper side edge of said flange (22) forms an inclined deflector surface (25).
8. Anti-clogging central fire cover according to any one of claims 1 to 7, characterized in that said drainage openings (12) are plural and spaced apart.
9. Anti-clogging central fire cover according to any one of claims 1 to 7, characterized in that the inner side of said collar (11) has an inwardly inclined flow-guiding end surface.
10. Anti-clogging central fire cover according to any one of claims 1 to 7, characterised in that the top surface of said end cap (1) is convex in the middle and inclined radially towards the periphery.
11. A burner with an anti-blocking central fire cover applied to any one of claims 1 to 10 comprises a base (4), the central fire cover (10), an outer fire cover (3), an ignition needle (32) and a thermocouple (31), wherein the base (4) is provided with an injection pipe, the central fire cover (10) and the outer fire cover (3) are arranged on the base (4) to respectively form an inner combustion chamber and an outer combustion chamber, and the ignition needle (32) and the thermocouple (31) are longitudinally arranged on the base (4) and are positioned between the central fire cover (10) and the outer fire cover (3).
12. Burner according to claim 11, characterized in that said end cap (1) is formed on one side with a protective cover (13) for covering the ignition needle (32), said ignition needle (32) being located in correspondence with a position below said protective cover (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281728.XA CN107339696B (en) | 2017-04-26 | 2017-04-26 | Anti-blocking central fire cover and combustor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281728.XA CN107339696B (en) | 2017-04-26 | 2017-04-26 | Anti-blocking central fire cover and combustor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107339696A CN107339696A (en) | 2017-11-10 |
| CN107339696B true CN107339696B (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710281728.XA Active CN107339696B (en) | 2017-04-26 | 2017-04-26 | Anti-blocking central fire cover and combustor with same |
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| Country | Link |
|---|---|
| CN (1) | CN107339696B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990291B (en) * | 2017-12-30 | 2024-04-02 | 宁波方太厨具有限公司 | Anti-blocking burner inner ring fire cover |
| CN110966600B (en) * | 2018-09-30 | 2021-11-02 | 宁波方太厨具有限公司 | Fire cover for gas stove |
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2017
- 2017-04-26 CN CN201710281728.XA patent/CN107339696B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107339696A (en) | 2017-11-10 |
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