CN217110027U

CN217110027U - Combustion chamber device for gas water heater

Info

Publication number: CN217110027U
Application number: CN202123297452.5U
Authority: CN
Inventors: 廖振开; 彭金东; 邓飞忠; 仇明贵; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-08-02
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a gas heater, especially a combustion chamber device for gas heater. The combustion chamber device of the gas water heater comprises a plurality of layers of heat insulation surrounding plates and a combustion chamber shell, wherein the front surface and the back surface of the combustion chamber respectively form a double-channel heat dissipation chamber, and the double-layer heat dissipation chamber can enable the positive pressure drum type gas water heater to play a role in heat insulation and temperature reduction during combustion, so that the combustion chamber device of the water heater is ensured not to be overheated for a long time, the combustion is safe, and the service life of the combustion chamber is prolonged. And through the structural design of the front and rear heat insulation surrounding plates, the screw-free fixed installation is realized, and the production and assembly efficiency is simply and conveniently improved.

Description

Combustion chamber device for gas water heater

Technical Field

The utility model relates to a gas heater technical field, concretely relates to combustion chamber device for gas heater.

Background

The burner is one of the key parts of gas water heater and gas heating furnace, mainly to promote the contact and mixing of fuel and air and the place where the violent heat releasing reaction occurs, and is the important part for releasing the potential energy of fuel.

In the existing strong drum type gas water heater structure, when the water heater works in a combustion mode, the inner cavity of the combustion chamber is close to flame, the surface temperature of the inner cavity is very high, if the air exhaust or the temperature insulation structure is not reasonable enough, the surface temperature of the shell of the combustion chamber is too high, and the phenomenon that the combustion chamber is burnt through or parts outside the combustion chamber are damaged by high temperature exists after the strong drum type gas water heater is used for a long time.

In order to solve the problem, the patent effectively improves the surface temperature of the combustion chamber device, stops the overflow of high-temperature flue gas, and improves the safety of the use of parts and other series problems.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model discloses to effectively improving the surface temperature of combustion chamber device, stop that the high temperature flue gas is excessive to improve the security scheduling series problem that spare part used and studied, the utility model provides a combustion chamber device for gas water heater.

The technical scheme of the utility model is that: the utility model provides a combustion chamber device for gas heater, include: the combustor shell comprises a combustor front plate and a combustor enclosing plate assembly, and the combustor front plate and the combustor enclosing plate assembly are enclosed to form a combustion chamber;

the heat insulation front plate assembly is arranged on the inner side of the combustion chamber front plate and forms a first heat dissipation chamber and a second heat dissipation chamber with the combustion chamber front plate; and

and the heat insulation surrounding plate assembly is sleeved on the inner side of the combustion chamber surrounding plate assembly and forms a third heat dissipation chamber and a fourth heat dissipation chamber together with the combustion chamber surrounding plate assembly.

Further, the heat insulation front plate assembly comprises a first front heat shield plate and a second front heat shield plate, the first front heat shield plate is connected with the second front heat shield plate in a butt-welding mode or in a screw mode to form a first heat dissipation chamber, and the first front heat shield plate is connected with the front plate of the combustion chamber in a screw mode to form a second heat dissipation chamber.

Furthermore, the upper side of the first front heat shield is provided with at least one upper layer exhaust port, the lower side of the upper layer exhaust port is provided with at least one lower layer exhaust port, a fixed convex surface is arranged between the upper layer exhaust port and the lower layer exhaust port, and the upper side of the fixed convex surface is provided with a plurality of first mounting grooves for positioning or fixing the second front heat shield.

Furthermore, a plurality of air inlets are formed in the lower side of the first front heat shield, and ignition needle through holes, fire observation holes and a plurality of fixing bosses which are arranged in parallel in the transverse direction are formed above the air inlets.

Further, thermal-insulated bounding wall subassembly contains keeps off hot bounding wall and back thermal-insulated bottom plate, keep off hot bounding wall with back thermal-insulated bottom plate butt-joint or screwed connection is in order to form the third heat dissipation cavity, keep off hot bounding wall screwed connection combustion chamber bounding wall subassembly in order to form the fourth heat dissipation cavity.

Furthermore, keep off hot bounding wall and be "U" type structure, including left side board, right side board and set up in the left side board with thermal-insulated bottom plate between the right side board.

Further, thermal-insulated bottom plate upside sets up at least one upper vent, the downside of upper vent sets up at least one lower floor's gas vent, and the upper vent with be provided with a plurality of between the gas vent of lower floor and be used for the location or fix the second mounting groove of back thermal-insulated bottom plate.

Furthermore, the air inlet and the air outlet are both in a shutter type.

Furthermore, the heat shield and the back heat insulation bottom plate are plate-shaped sunken table type structures before the second, the middle parts of the heat shield and the back heat insulation bottom plate are provided with a plurality of fixed bosses, and the upper sides of the heat shield and the back heat insulation bottom plate are provided with fixed inserting pieces which are arranged in parallel along the transverse direction.

Furthermore, the fixed inserting sheet is used for being inserted into the first mounting groove or the second mounting groove.

The utility model discloses the beneficial effect who reaches does:

1. the front side and the back side of the combustion chamber respectively form a double-channel heat dissipation chamber, and the double-layer heat dissipation chamber enables the gas water heater to insulate heat more efficiently during combustion work, and effectively prolongs the service life of a product;

2. the water heater of the combustion chamber device is arranged in a working chamber, the peripheral surface of the combustion chamber shell is not discolored, and the surface temperature can be controlled below 140 ℃;

3. the front combustion chamber plate, the surrounding combustion chamber plate, the heat-insulating front plate and the heat-insulating surrounding plate are integrally bent and formed, so that the number of parts of the whole machine is reduced, and the production and assembly efficiency is improved;

4. the front heat shield plate and the heat insulation surrounding plate are both provided with flanges and buckled edges, the shell supports the front heat shield plate and the heat insulation surrounding plate, the front heat shield plate and the heat insulation surrounding plate are convenient to limit, screwing is avoided, and production assembly efficiency is improved.

Drawings

FIG. 1 is an exploded view of a combustor assembly according to an embodiment of the present invention;

fig. 2 is a working diagram of the heat dissipation chamber of the present invention;

FIG. 3 is a pictorial view of a combustor housing assembly in accordance with the present invention;

fig. 4 is a schematic structural view of a first front heat shield according to the present invention;

FIG. 5 is a schematic structural view of a second front heat shield according to the present invention;

FIG. 6 is a schematic structural view of a heat-insulating front plate assembly according to the present invention;

FIG. 7 is a schematic view of the lateral heat dissipation chamber of the combustion chamber of the present invention;

fig. 8 is a schematic structural view of the heat shield panel of the present invention;

fig. 9 is a schematic structural view of the rear heat insulation bottom plate of the present invention;

fig. 10 is a schematic structural view of the heat insulating shroud assembly of the present invention;

in the figure:

10. a combustion chamber front plate; 101. an ignition needle mounting hole; 102. a fire observation hole; 103. a screw mounting hole;

20. a combustion chamber enclosure assembly; 201. a combustion chamber coaming; 202. a lower base plate; 203. a support; 204. an air inlet;

30. a thermally insulated front panel assembly; 301. a first front heat shield; 3011. a first air inlet; 3012. a first exhaust port; 3013. a second exhaust port; 3014. a firing pin through hole; 3015. a fire observation hole; 3016. a first fixed boss; 3017. a first fixed convex surface; 3018. a first mounting groove; 302. a second front heat shield; 3021. a second fixed boss; 3022. a first fixed insert; 303. a first heat dissipation chamber; 304. a second heat dissipation chamber;

40. a heat insulating shroud assembly; 401. a heat-blocking coaming; 4011. a left side plate; 4012. a right side plate; 4013. a thermally insulating floor; 40131. a second air inlet; 40132. a third fixed boss; 40133. a third exhaust port; 40134. a fourth exhaust port; 40135. a second mounting groove; 401a, a side air inlet; 401b, side exhaust ports; 401c, a fifth heat dissipation chamber; 402. a rear thermal insulation base plate; 4021. a fourth fixed boss; 4022. a second fixing insert; 403. a third heat dissipation chamber; 404. and a fourth heat dissipation chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-10, the utility model provides a combustor device for gas water heater includes multilayer thermal-insulated bounding wall and combustor shell, sets up binary channels exhaust structure, specifically includes combustor front bezel 10, combustor bounding wall subassembly 20, thermal-insulated front bezel subassembly 30 and thermal-insulated bounding wall subassembly 40.

The combustor front plate 10 and the combustor boarding assembly 20 are combined to form a combustor casing 100, as shown in fig. 3, a combustor assembly is installed in the inner cavity of the combustor casing 100, and the top of the combustor casing 100 is connected with a heat exchanger. The front surface of the combustion chamber front plate 10 is provided with an ignition needle mounting hole 101 and a fire observation hole 102, and the periphery is provided with a plurality of screw mounting holes 103. The combustion chamber enclosure assembly 20 is composed of a combustion chamber enclosure 201, a lower base plate 202 and a plurality of brackets 203, the lower base plate 202 is provided with an air inlet 204, a fan assembly is arranged at the air inlet 204, and air flow for combustion and cooling of the combustor enters from the air inlet 204.

The heat insulation front plate assembly 30 comprises a first front heat shield 301 and a second front heat shield 302 which are jointed together by structures such as butt welding or screw fixation and the like and are arranged on the inner side of the combustion chamber front plate 10; after the combustion chamber front plate 10 and the heat insulation front plate assembly 30 are installed, a first heat dissipation chamber 303 and a second heat dissipation chamber 304 are formed through a gap between the two plates, as shown in fig. 2, the first heat dissipation chamber 303 is located at the inner side, air enters from a first air inlet 3011 at the bottom side, flows out from a first exhaust port 3012 and a second exhaust port 3013 at the top sides of the first heat dissipation chamber 303 and the second heat dissipation chamber 304 respectively, the surface of the first heat dissipation chamber 303 is further cooled by airflow of the second heat dissipation chamber 304, and the surface temperature of the combustion chamber front plate 10 is lower.

As shown in fig. 4, a plurality of louver type first air inlets 3011 are disposed at the bottom side of the first front heat shield 301, and the louver type windows with blades can guide air to flow into the heat dissipation cavity and are arranged in parallel along the transverse direction; an ignition needle through hole 3014, a fire observation hole 3015 and a plurality of first fixing bosses 3016 are arranged on the upper side of the first air inlet 3011, and the first fixing bosses 3016 are arranged in parallel along the transverse direction, so that the uniform gap between the first front heat shield 301 and the second front heat shield 302 is ensured. A plurality of louver type first exhaust ports 3012 and second exhaust ports 3013 are arranged on the upper side of the first front heat shield 301, the window with blades can guide air to flow out of the heat dissipation chamber, and the second exhaust ports 3013 are positioned above the first exhaust ports 3012 and are arranged in parallel along the transverse direction; a first fixing convex surface 3017 is arranged between the first exhaust port 3012 and the second exhaust port 3013, a plurality of first installation grooves 3018 are arranged at the first fixing convex surface 3017, and the first installation grooves 3018 are used for positioning and fixing the second front heat shield 302 during installation.

The second front heat shield 302 is a plate-shaped sunk platform structure, as shown in fig. 5, the middle part is provided with a plurality of second fixing bosses 3021, the upper side is provided with a plurality of first fixing insertion pieces 3022, and the second fixing insertion pieces are respectively arranged in parallel along the transverse direction. After the first fixing insertion pieces 3022 are inserted into the first installation grooves 3018 of the first front heat shield 301, as shown in fig. 6, a first heat dissipation chamber 303 is formed by a gap between the first front heat shield 301 and the second front heat shield 302, and air enters the first heat dissipation chamber 303 and flows out to the first exhaust port 3012 along the chamber space.

The heat insulation surrounding plate assembly 40 comprises a heat insulation surrounding plate 401 and a rear heat insulation bottom plate 402 which are jointed together by structures such as butt welding or screw fixation and the like and are arranged at the inner side of the combustion chamber surrounding plate assembly 20; after the combustion chamber surrounding plate assembly 20 and the heat insulation surrounding plate assembly 40 are installed, a third heat dissipation chamber 403 and a fourth heat dissipation chamber 404 are formed, the third heat dissipation chamber 403 is located on the inner side, air enters from an air inlet on the bottom side and flows out from an air outlet on the top side of the heat dissipation chamber respectively, the surface of the third heat dissipation chamber 403 is further cooled by airflow of the fourth heat dissipation chamber 404, and the surface temperature of the combustion chamber surrounding plate 20 is lower.

The heat baffle boarding 401 is of a U-shaped structure formed integrally, as shown in fig. 8-9, a left side plate 4011 and a right side plate 4012 are respectively provided with a side air inlet 401a and a side air outlet 401b with louver window type, and the middle part is a heat insulation bottom plate 4013. After the heat-blocking enclosing plate 401 and the combustion chamber enclosing plate 201 are installed, a heat-radiating cavity V401c is formed, air enters from a side air inlet 401a at the bottom and flows out from a side air outlet 401b at the top of the heat-radiating cavity respectively, the surface temperature of the combustion chamber enclosing plate 20 is effectively reduced, a double-channel air exhaust structure is formed, a positive pressure drum type gas water heater plays a role in heat insulation and temperature reduction during combustion, the water heater combustion chamber device is ensured not to be overheated for a long time, safe combustion is realized, and the service life of a combustion chamber is prolonged.

A plurality of shutter type second air inlets 40131 are arranged on the lower side of the heat insulation base plate 4013 and are arranged in parallel along the transverse direction; the upper side of the second air inlet 40131 is provided with a plurality of third fixing bosses 40132, and the third fixing bosses 40132 are arranged in parallel along the transverse direction, which is favorable for ensuring the uniform gap between the heat insulation base plate 4013 and the rear heat shield 402. A plurality of louver type third exhaust ports 40133 and fourth exhaust ports 40134 are arranged on the upper side of the heat insulation base plate 4013, and the third exhaust ports 40133 are located above the fourth exhaust ports 40134 and are respectively arranged in parallel along the transverse direction; a plurality of second mounting grooves 40135 are provided between the third exhaust port 40133 and the fourth exhaust port 40134, and the second mounting grooves 40135 are used for positioning and fixing when the rear insulating base plate 402 is mounted.

The rear heat insulation bottom plate 402 is of a plate-shaped sinking platform type structure (as shown in fig. 9), the middle part of the rear heat insulation bottom plate is provided with a plurality of fourth fixing bosses 4021, and the upper side of the rear heat insulation bottom plate is provided with a plurality of second fixing insertion pieces 4022 which are respectively arranged in parallel along the transverse direction. The fixing insertion sheet 4022 is inserted into the installation groove 40135 of the heat insulation base plate 4013, as shown in fig. 10, after installation, a gap between the heat insulation base plate 4013 and the interior of the rear heat insulation base plate 402 forms a third heat dissipation chamber 403, and air enters the third heat dissipation chamber 403 and flows out to the fourth exhaust port 40134 along the chamber space.

Example 2

As a further optimization of the scheme, the top parts of the first front heat baffle plate 301 and the heat insulation baffle plate 401 are provided with outward-turned flanges 401a which are parallel to the first front heat baffle plate and the heat insulation baffle plate, so that the first front heat baffle plate and the heat insulation baffle plate are conveniently supported by a combustion chamber shell; the flange is provided with a plurality of folding edges 401b which are convenient to buckle into the combustion chamber shell 100 to realize limiting; the heat insulation surrounding plate 401 is sleeved into the combustion chamber surrounding plate assembly 20 from the top to the bottom for assembly, and screw-free fixation is achieved.

Example 3

As a further optimization of the above solution, the heat insulating shroud assembly 40 may have no rear heat insulating bottom plate 402, i.e. after the combustion chamber shroud assembly 20 and the heat insulating shroud 401 are installed, only a fourth heat dissipation chamber 404 is formed, and air enters from the bottom side air inlet and exits from the top side air outlet of the heat dissipation chamber.

Example 4

As a further optimization of the scheme, the distance L of the heat dissipation chamber is more suitable than 2mm, and when L is less than 2mm, less air flows into the heat dissipation chamber, and the heat dissipation effect is poor.

Example 5

As a further optimization of the above solution, the heat baffle plate material is stainless steel, preferably stainless steel 430. The thickness of the heat insulation coaming is 0.3-1.0 mm, and preferably 0.8 mm.

Example 6

As a further optimization of the above solution, the contact surfaces of the heat insulation front plate assembly 30 and the heat insulation surrounding plate assembly 404 and the combustion chamber shell 100 are provided with sealing devices.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "etc. indicate the orientation or positional relationship, and are merely for convenience of description of the present invention and simplification of description, and the description is mainly made with reference to fig. 1, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A combustion chamber assembly for a gas water heater, comprising:

the combustor shell comprises a combustor front plate (10) and a combustor enclosing plate assembly (20), wherein the combustor front plate (10) and the combustor enclosing plate assembly (20) are enclosed to form a combustion chamber;

a heat insulation front plate assembly (30) which is installed on the inner side of the combustion chamber front plate (10) and forms a first heat dissipation chamber (303) and a second heat dissipation chamber (304) with the combustion chamber front plate (10); and

and the heat insulation surrounding plate assembly (40) is sleeved on the inner side of the combustion chamber surrounding plate assembly (20) and forms a third heat dissipation chamber (403) and a fourth heat dissipation chamber (404) with the combustion chamber surrounding plate assembly (20).

2. A combustion chamber arrangement for a gas water heater according to claim 1, characterized in that the heat insulating front plate assembly (30) comprises a first front heat shield (301) and a second front heat shield (302), the first front heat shield (301) being welded or screwed to the second front heat shield (302) to form a first heat dissipation chamber (303), the first front heat shield (301) being screwed to the combustion chamber front plate (10) to form a second heat dissipation chamber (304).

3. The combustion chamber device for the gas water heater as claimed in claim 2, wherein the first front heat shield (301) is provided at an upper side thereof with at least one upper exhaust port, at a lower side thereof with at least one lower exhaust port, and a fixing convex surface (3017) is provided between the upper exhaust port and the lower exhaust port, and the fixing convex surface (3017) is provided at an upper side thereof with a plurality of first mounting grooves (3018) for positioning or fixing the second front heat shield (302).

4. The combustion chamber device for the gas water heater as claimed in claim 3, wherein a plurality of air inlets are arranged at the lower side of the first front heat shield (301), and an ignition needle through hole (3014), a fire observation hole (3015) and a plurality of fixing bosses arranged in parallel along the transverse direction are arranged above the air inlets.

5. A burner unit for a gas water heater according to claim 2, wherein the heat insulating shroud assembly (40) comprises a heat blocking shroud (401) and a rear heat insulating base plate (402), the heat blocking shroud (401) being butt-welded or screwed to the rear heat insulating base plate (402) to form a third heat dissipation chamber (403), the heat blocking shroud (401) being screwed to the burner shroud assembly (20) to form a fourth heat dissipation chamber (404).

6. The combustor assembly for a gas water heater as claimed in claim 5, wherein the heat baffle enclosure (401) is a "U" shaped structure comprising a left side plate (4011), a right side plate (4012) and an insulated bottom plate (4013) disposed between the left side plate (4011) and the right side plate (4012).

7. The combustion chamber device for the gas water heater as claimed in claim 6, wherein at least one upper layer exhaust port is provided at an upper side of the heat insulation base plate (4013), at least one lower layer exhaust port is provided at a lower side of the upper layer exhaust port, and a plurality of second mounting grooves (40135) for positioning or fixing the rear heat insulation base plate (402) are provided between the upper layer exhaust port and the lower layer exhaust port.

8. The combustion chamber assembly as claimed in claim 4, wherein the air inlet, the upper exhaust port and the lower exhaust port are all louver type.

9. The combustion chamber device for the gas water heater, according to claim 5, is characterized in that the second front heat shield (302) and the rear heat insulation bottom plate (402) are both of a plate-shaped counter sink structure, the middle parts of the second front heat shield (302) and the rear heat insulation bottom plate (402) are respectively provided with a plurality of fixing bosses, and the upper sides of the second front heat shield (302) and the rear heat insulation bottom plate (402) are respectively provided with fixing insertion pieces which are arranged in parallel along the transverse direction.

10. The combustion chamber assembly for a gas water heater as claimed in claim 9, wherein the fixing insert is adapted to be inserted into the first mounting groove (3018) or the second mounting groove (40135).