Burner capable of being quickly disassembled and assembled

Abstract

The utility model provides a combustor capable of being quickly disassembled and assembled, which belongs to the technical field of combustor devices and comprises a front cover plate, a fire-resistant partition plate and a combustion head. The front cover plate is provided with a fuel gas output port; the fireproof partition plate is arranged on the side, provided with the gas output port, of the front cover plate and fixedly connected with the front cover plate, and the fireproof partition plate is provided with a penetrating port corresponding to the gas output port. And one end of the combustion head can be arranged in the penetrating opening from the side, away from the front cover plate, of the fireproof partition plate, is fixedly connected with the front cover plate and communicates with the fuel gas output opening. The utility model has the beneficial effects that the combustion head can be ensured not to interfere with the fire-resistant partition plate in the disassembly and assembly process, and the problem that the fire-resistant partition plate needs to be disassembled firstly during disassembly and assembly of the combustion head is avoided, so that the workload of disassembly and assembly of the combustion head can be greatly reduced, and meanwhile, the problem that the fire-resistant partition plate is damaged due to repeated disassembly and assembly is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of burner devices, in particular to a burner which can be quickly disassembled and assembled. Background Art

[0002] Most fully premixed condensing wall-mounted boilers use cylindrical burners, which usually include a front cover, a combustion head and a refractory partition, wherein the refractory partition is connected to the bottom of the front cover, a gas outlet is provided in the middle of the front cover, a connecting edge with a circular ring structure is provided at the upper end of the combustion head, and a avoidance hole is provided in the middle of the refractory partition. The refractory partition presses the combustion head against the front cover by pressing the connecting edge, so that the gas outlet is connected to the combustion head. In the above structure, the outer diameter of the connecting edge at the upper end of the combustion head needs to be larger than the inner diameter of the avoidance hole provided in the middle of the refractory partition. Before disassembling the combustion head, the refractory partition needs to be removed first.

[0003] In order to ensure a better combustion adjustment ratio, the aperture of the burner head is generally less than 1mm. Since the gas and air cannot be guaranteed to be absolutely pure, long-term combustion will easily produce residues, which will clog the small holes on the surface of the burner head. When maintenance personnel disassemble and replace the burner head in the later stage, they need to remove the refractory partition before removing the burner head, which is very inconvenient. Therefore, when the small holes are blocked, the burner components are usually replaced directly (together with the front cover and other parts), resulting in material waste; or the lower ignition needle and ion needle arranged on the refractory partition are first removed, and then the refractory partition is removed, and finally the burner head is removed, which consumes a lot of man-hours and the refractory partition is easy to break if the operation is improper. In addition, the refractory partition and graphite gasket are easily loosened and damaged after repeated disassembly and assembly, and are not suitable for secondary disassembly and assembly. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a burner that can be quickly disassembled and assembled, including a front cover plate, a refractory partition and a combustion head; the front cover plate is provided with a gas outlet; the refractory partition is arranged on the side of the front cover plate provided with the gas outlet and is fixedly connected to the front cover plate, wherein the refractory partition is provided with a through-hole corresponding to the gas outlet; one end of the combustion head is configured to be inserted into the through-hole from the side of the refractory partition away from the front cover plate, and is fixedly connected to the front cover plate, and is communicated with the gas outlet.

[0005] Furthermore, the burner also includes: a connecting portion fixed to the front cover plate and extending from the front cover plate into the through-opening; wherein at least a portion of the connecting portion overlaps with at least a portion of the combustion head in the extending direction of the through-opening.

[0006] Furthermore, at least part of the connecting portion is sleeved on at least part of the outer periphery of the combustion head.

[0007] Or, at least a portion of the burner head is sleeved on at least a portion of the outer periphery of the connecting portion;

[0008] And / or, an overlapping portion of the connecting portion and the burner head in the extending direction of the through-opening is located in the through-opening.

[0009] Furthermore, the connecting part and the burner head are both circular sleeve structures, the inner wall of the connecting part is provided with an internal thread, the end of the burner head is provided with an external thread, and the burner head is connected to the connecting part by a threaded connection; or, the connecting part is provided with an external thread, the inner wall of the end of the burner head is provided with an internal thread, and the burner head is connected by a threaded connection and is sleeved outside the connecting part.

[0010] Furthermore, the connecting portion and the combustion head are connected by a snap-fit ​​connection.

[0011] Furthermore, the connecting part and the burner head are both circular sleeve structures, the connecting part is provided with a plurality of inverted L-shaped slots, and the burner head is provided with a plurality of clamping rods, the clamping rods and the clamping slots correspond one to one, and each clamping rod is first inserted and then rotated to be inserted into the bottom of a slot.

[0012] Furthermore, the connecting portion and the combustion head are connected by a screw connection.

[0013] Furthermore, a connecting screw is provided in the combustion head, one end of the connecting screw is connected to the combustion head, and the other end passes through the front cover plate and is fixed to the front cover plate through a connecting nut outside the front cover plate.

[0014] Furthermore, it also includes a gasket; a gasket is arranged between the end of the combustion head extending into the through-hole and the surface of the front cover plate facing the fireproof partition.

[0015] Furthermore, the burner head and the front cover plate are fixedly connected in an adjustable position along the extending direction of the through-opening, and the gasket is a high-temperature resistant graphite gasket.

[0016] Furthermore, the burner head and the front cover plate are connected in a fixed position along the extending direction of the through-opening, and the gasket is a high temperature resistant elastic gasket.

[0017] Furthermore, the gasket includes a first high temperature resistant graphite gasket, a rubber gasket, and a second high temperature resistant graphite gasket which are stacked in sequence along the extending direction of the through opening.

[0018] The utility model provides a burner that can be quickly disassembled and assembled as follows: the burner comprises a front cover plate, a refractory partition plate and a combustion head; wherein the refractory partition plate is connected to the front cover plate, and a avoidance hole is provided in the middle of the refractory partition plate, the upper end of the combustion head passes through the avoidance hole of the refractory partition plate, and is connected to the front cover plate in a detachable manner, and the diameter of the part of the combustion head that passes through the avoidance hole of the refractory partition plate is smaller than the diameter of the avoidance hole of the refractory partition plate, so that it can be ensured that the combustion head will not interfere with the refractory partition plate during the disassembly and assembly process, and the problem of removing the refractory partition plate before disassembling the combustion head is avoided. This can greatly reduce the workload of disassembling and assembling the combustion head and avoid the damage problem of the refractory partition plate caused by repeated disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of a burner that can be quickly disassembled and assembled according to the first embodiment of the utility model.

[0020] Figure 2 yes Figure 1 Front view of the burner that can be quickly disassembled and installed.

[0021] Figure 3 yes Figure 2 Sectional view of the burner at AA that can be quickly disassembled

[0022] Figure 4 It is a connection structure diagram of the front cover plate and the combustion head 4 of the burner which can be quickly disassembled and assembled according to the second embodiment of the utility model.

[0023] Figure 5 It is a structural exploded view of the front cover plate and the combustion head 4 of the burner which can be quickly disassembled and assembled according to the third embodiment of the utility model.

[0024] Figure 6 It is a cross-sectional view of the connection between the front cover plate and the combustion head 4 of the burner that can be quickly disassembled in the third embodiment of the utility model.

[0025] In the figure: 1-gas delivery pipe, 2-connecting cover, 21-connecting part, 22-slot, 3-refractory partition, 4-combustion head, 41-clamping column, 42-connecting screw, 43-connecting nut, 5-gasket. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the implementation mode of the utility model will be further described below in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] Please refer to Figures 1 to 3 , the present embodiment is a burner that can be quickly disassembled and assembled, including a front cover plate, a refractory partition plate 3 and a combustion head 4;

[0029] A gas outlet is provided on the front cover plate, and a fire-resistant partition plate 3 is provided on a side of the front cover plate where the gas outlet is provided and is fixedly connected to the front cover plate, wherein a through hole is provided on the fire-resistant partition plate 3 corresponding to the gas outlet; one end of the burner head 4 is configured to be inserted into the through hole from a side of the fire-resistant partition away from the front cover plate, and is fixedly connected to the front cover plate and communicated with the gas outlet.

[0030] Preferably, the front cover plate includes a connecting cover 2 and a gas delivery pipe 1 , and the connecting cover 2 and the gas delivery pipe 1 are an integrally formed structure; the through-hole is arranged on the connecting cover 2 , and the gas output port is located at the end of the gas delivery pipe 1 .

[0031] The fireproof partition 2 is a circular plate structure with an avoidance hole in the middle. The fireproof partition 2 is connected to the connecting cover 2. The connecting cover 2 is provided with a connecting portion 21 extending from the front cover plate to the through opening. The connecting portion 21 is a round tube sleeve structure. The connecting portion 21 is located in the avoidance hole. The connecting portion 21 and the combustion head 4 are both round tube structures. An external thread is provided at the end of the connecting portion 21, and an internal thread is provided inside the connecting portion 21. The combustion head 4 is connected to the connecting portion 21 through threads.

[0032] Preferably, a gasket is provided between the end of the burner head 4 extending into the through hole and the surface of the front cover plate facing the front cover plate, so as to improve the sealing performance between the burner head 4 and the front cover plate.

[0033] More preferably, the burner head 4 and the front cover plate are connected in a position-adjustable fixed connection manner along the extension direction of the through-opening (for example, the connection portion 21 and the burner head 4 are connected by threads, etc., so that the burner head 4 and the front cover plate are fixed and position-adjustable along the extension direction of the through-opening), and the gasket is a high-temperature resistant graphite gasket. Due to the use of a position-adjustable fixed connection manner, the burner head 4 and the front cover plate can be relatively fixed after being connected, and the fixed position is variable, so there is no need to make the gasket elastic to ensure that the burner head 4 and the front cover plate can better clamp the gasket, ensure sealing, reduce process tolerance requirements, and thus reduce manufacturing costs.

[0034] The burner further includes: a connecting portion 21 fixedly connected to the front cover plate and extending from the front cover plate into the through-hole; at least a portion of the connecting portion 21 overlaps with at least a portion of the burner head 4 in the extending direction of the through-hole. In this way, the contact area between the burner head 4 and other structures can be increased based on the connecting portion 21, thereby improving the stability of the burner head 4 after being connected to the front cover plate.

[0035] In the first embodiment of the present invention, the combustion head 4 is connected to the connecting part 21 by a threaded connection (in a detachable manner), which can ensure the airtightness of the connection between the combustion head 4 and the connecting part 21, and the diameter of the upper end of the combustion head 4 is smaller than the inner diameter of the avoidance hole of the refractory partition 3. Therefore, the disassembly and installation of the combustion head 4 do not require the disassembly of the refractory partition 3, thereby avoiding the problem of removing the refractory partition 3 before disassembling the combustion head. This can greatly reduce the workload of disassembling the combustion head 4 and avoid the damage of the refractory partition 3 caused by repeated disassembly and assembly.

[0036] Of course, in other embodiments, the burner head 4 may be sleeved with the connecting portion 21 , and the burner head 4 and the connecting portion 21 may be threadedly connected.

[0037] Furthermore, the overlapping portion of the connecting portion 21 and the burner head 4 in the extending direction of the through-hole is located in the through-hole. In this way, the space in the through-hole can be effectively utilized, thereby reducing the space volume required for the burner.

[0038] Embodiment 2:

[0039] refer to Figure 4 In the second embodiment, the burner head 4 and the front cover plate are connected in a fixed position along the extending direction of the through-opening.

[0040] The position-fixed connection means that, after the burner head 4 and the front cover are fixed, the relative position between the burner head 4 and the front cover remains unchanged. The present application does not limit the specific fixing method of the position-fixed connection.

[0041] In some embodiments, the burner head 4 is connected to the connecting portion 21 by means of a snap connection. Specifically, a plurality of inverted L-shaped slots are provided at the lower end of the connecting portion 21, and a plurality of clamping rods corresponding to the clamps are provided on the outer wall of the upper end of the burner head 4. The clamping rods are aligned one by one with the clamping slots, the burner head 4 is moved upward and slightly rotated, and the burner head 4 can be connected to the connecting portion 21.

[0042] When the vertical side of the inverted L-shaped slot "L" extends in the same direction as the through hole, and when the horizontal side of the inverted L-shaped slot "L" extends in a direction perpendicular to the through hole, a position-fixed connection can be formed.

[0043] Preferably, a gasket is provided between one end of the burner head 4 extending into the through-hole and the surface of the front cover plate facing the front cover plate, and the gasket is a high-temperature resistant elastic gasket; the burner head 4 and the front cover plate are fixedly connected in a position along the extending direction of the through-hole (snap-on connection), and the gasket is fixed in a position along the extending direction, and the reaction force of the high-temperature resistant gasket presses down the burner head 4, thereby ensuring an air-tight connection between the burner head 4 and the connecting part 21, and is not easy to fall off, while reducing the tolerance requirements on the process, thereby reducing the manufacturing cost.

[0044] Preferably, the gasket can be a high temperature resistant rubber gasket. A multi-gasket structure can also be used, that is, the gasket includes a first high temperature resistant graphite gasket, a rubber gasket, and a second high temperature resistant graphite gasket stacked in sequence along the extension direction of the through hole. In this way, the high temperature graphite gasket can be used to improve the high temperature resistance of the gasket, and the rubber gasket can be used to make the gasket elastic.

[0045] In the second embodiment, the burner head 4 is connected to the connection part 21 by a snap connection, which can also ensure that the burner head 4 can be disassembled and installed without removing the refractory partition 3, avoiding the problem of removing the refractory partition 3 before disassembling the burner head 4. The structure of the "graphite + rubber pad + graphite" gasket ensures that it can achieve the effect of strong pressure sealing, while ensuring high temperature resistance and elasticity.

[0046] Embodiment three:

[0047] refer to Figure 5 and Figure 6In the third embodiment, the burner head 4 is connected to the front cover plate by means of a screw connection. Specifically, a connecting screw 42 is provided in the burner head 4, and a connecting hole is provided above the front cover plate. One end of the burner head 4 is plugged into the burner head 4, and the other end passes through the front cover plate and is fixed on the outside of the front cover plate by a connecting nut.

[0048] Preferably, a gasket 5 is provided between one end of the burner head 4 extending into the through hole and the surface of the front cover plate facing the front cover plate. The gasket 5 is a graphite gasket, and the gasket 5 ensures the airtightness between the connecting portion 21 and the burner head 4 .

[0049] In the third embodiment, the combustion head 4 is connected to the connecting part 21 by means of a screw connection, which can also ensure that the combustion head 4 can be disassembled and installed without removing the refractory partition 3, thereby avoiding the problem of removing the refractory partition 3 before disassembling the combustion head 4. At the same time, the graphite gasket can ensure the tightness of the connection between the combustion head 4 and the front cover plate.

[0050] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of directional words should not limit the scope of protection requested by this application.

[0051] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A burner that can be quickly disassembled and assembled, characterized in that: It includes a front cover plate, a fire-resistant partition plate and a combustion head; the front cover plate is provided with a gas outlet; the fire-resistant partition plate is arranged on a side of the front cover plate provided with the gas outlet and is fixedly connected to the front cover plate, wherein the fire-resistant partition plate is provided with a through-hole corresponding to the gas outlet; one end of the combustion head is configured to be inserted into the through-hole from a side of the fire-resistant partition plate away from the front cover plate, and is fixedly connected to the front cover plate and communicated with the gas outlet.

2. The burner that can be quickly disassembled and assembled according to claim 1 is characterized in that: The burner further comprises: a connecting portion fixedly connected to the front cover plate and extending from the front cover plate into the through-opening; at least a portion of the connecting portion overlaps with at least a portion of the combustion head in the extending direction of the through-opening.

3. The burner that can be quickly disassembled and assembled according to claim 2 is characterized in that: At least part of the connecting portion is sleeved on at least part of the outer periphery of the burner head, or at least part of the burner head is sleeved on at least part of the outer periphery of the connecting portion; and / or, The overlapping portion of the connecting portion and the burner head in the extending direction of the through-hole is located in the through-hole.

4. The burner that can be quickly disassembled and assembled according to claim 2 or 3, characterized in that: The connecting part and the combustion head are both circular sleeve structures; The inner wall of the connecting part is provided with an internal thread, the end of the burner head is provided with an external thread, and the burner head is connected to the connecting part by a threaded connection; or, the connecting part is provided with an external thread, the inner wall of the end of the burner head is provided with an internal thread, and the burner head is connected by a threaded connection and is sleeved outside the connecting part.

5. The burner that can be quickly disassembled and assembled according to claim 2 is characterized in that: The connecting portion and the combustion head are connected via a snap-fit ​​connection.

6. The burner that can be quickly disassembled and assembled according to claim 5 is characterized in that: The connecting part and the burner head are both circular sleeve structures. The connecting part is provided with a plurality of inverted L-shaped slots, and the burner head is provided with a plurality of clamping rods. The clamping rods correspond to the slots one by one, and each clamping rod is first inserted into the bottom of a slot and then rotated.

7. The burner that can be quickly disassembled and assembled according to claim 2 is characterized in that: The connecting portion and the combustion head are connected by a screw connection.

8. The burner that can be quickly disassembled and assembled according to claim 7 is characterized in that: A connecting screw is provided in the combustion head, one end of the connecting screw is connected to the combustion head, and the other end passes through the front cover plate and is fixed to the front cover plate through a connecting nut outside the front cover plate.

9. The burner that can be quickly disassembled and assembled according to claim 1 is characterized in that: It also includes a gasket; the gasket is arranged between the end of the burner head extending into the through-hole and the surface of the front cover plate facing the refractory partition.

10. The quickly detachable burner according to claim 9, characterized in that: The burner head and the front cover plate are fixedly connected in an adjustable position along the extending direction of the through-port, and the gasket is a high-temperature resistant graphite gasket.

11. The quickly detachable burner according to claim 9, characterized in that: The burner head and the front cover plate are connected in a fixed position manner along the extending direction of the through-port, and the gasket is a high temperature resistant elastic gasket.

12. The quickly detachable burner according to claim 11, characterized in that: The gasket comprises a first high temperature resistant graphite gasket, a rubber gasket and a second high temperature resistant graphite gasket which are sequentially stacked along the extending direction of the through hole.

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