Damping device of full-premixing burner

Abstract

The utility model relates to a damping device of a full-premixing burner. The device comprises supporting plates and a square tube, the supporting plates are arranged at the two ends of the square tube, the device is structurally characterized by further comprising a screw rod, a base plate, a spring, a guide pipe and a pressing plate, the screw rod is arranged on the square tube, the base plate is arranged on the screw rod, the guide pipe is arranged on the pressing plate, the spring is arranged outside the screw rod in a sleeving mode and located in the guide pipe, and the pressing plate is arranged on the base plate. The two ends of the spring abut against the base plate and the pressing plate respectively. According to the damping device for the full-premixing combustor, vibration generated during combustion of the combustor can be reduced by arranging the two damping structures, the first damping structure and the spring are used for damping, the lower end of the spring is placed in the guide pipe, and the upper end of the spring is pressed by the nut through the base plate; according to the second damping structure, a rubber plate is arranged between the pressing plate and the combustor cover plate, and the damping effect is achieved; and by arranging the two damping structures, vibration can be reduced, and noise is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a shock absorbing device for a full premix burner. Background Art

[0002] Fully premixed combustion of gas has been increasingly used due to its advantages such as small air excess coefficient, complete combustion, and low nitrogen oxide emissions. Combustion oscillation is a common phenomenon in this combustion process. In fully premixed combustion, it often manifests as strong and harsh high-frequency noise accompanied by violent vibration of the burner. If it is not eliminated, it will not only cause discomfort to people, but may also cause damage to the burner and equipment.

[0003] The combustion oscillation of fully premixed combustion is the result of the interaction between the combustion heat release and the acoustic pulsation of the combustor, and is specifically directly related to the phase difference between the combustion heat release and the pressure in the combustion chamber. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a fully premixed burner vibration damping device with a rational structural design. By compressing the burner cover plate to interfere with the amplitude and frequency of the oscillation during combustion, the oscillation and noise during combustion are effectively reduced and eliminated.

[0005] The technical solution adopted by the present invention to solve the above-mentioned problem is as follows: the shock absorbing device for a full premix burner includes a support plate and a square tube, with support plates provided at both ends of the square tube. Its structural characteristics are: it also includes a screw, a pad, a spring, a conduit and a pressure plate, the screw being provided on the square tube, the pad being provided on the screw, the conduit being provided on the pressure plate, the spring being sleeved outside the screw and located inside the conduit, and the two ends of the spring respectively abutting against the pad and the pressure plate. The pressure plate and the rubber plate are pressed against the burner cover plate by the spring, and the burner cover plate is made substantially vibration-free during operation by adjusting the nut, thereby effectively eliminating noise.

[0006] Furthermore, the screw rod is arranged on the square tube through a nut and a washer, which can conveniently fix the screw rod.

[0007] Furthermore, the pad is arranged on the screw by means of a nut and a washer, which facilitates adjustment of the position of the pad.

[0008] Furthermore, a rubber plate is provided at the bottom of the pressing plate.

[0009] Furthermore, the pressure plate is arranged on the burner cover plate by nuts, washers and bolts, so as to facilitate the installation of the full premix burner shock absorbing device on the burner cover plate.

[0010] Furthermore, the rubber plate is located between the pressure plate and the burner cover plate, which can play a role in shock absorption and reduce vibration.

[0011] Compared with the existing technology, the utility model has the following advantages: the full premixed burner shock absorption device can reduce the vibration generated by the burner during combustion by setting two shock absorption structures. The first shock absorption structure is a spring shock absorption, the lower end of the spring is placed in the guide tube, and the upper end is tightened with a nut through a pad; the second shock absorption structure is a rubber plate arranged between the pressure plate and the burner cover plate to play a shock absorption role; by setting two shock absorption structures, vibration can be reduced and noise is greatly reduced. The full premixed burner shock absorption device is easy to install and disassemble, has a simple structure, good process performance, good parts versatility, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the full premixed burner vibration reduction device according to an embodiment of the present utility model.

[0013] Figure 2 It is a left-side structural schematic diagram of a full premixed burner damping device according to an embodiment of the present utility model.

[0014] In the figure: support plate 1, square tube 2, screw 3, nut 4, gasket 5, backing plate 6, spring 7, guide tube 8, pressure plate 9, rubber sheet 10, bolt 11, burner cover plate 12. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0016] Example

[0017] See also Figures 1 to 2 As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0018] The full premixed burner vibration damping device in this embodiment includes a support plate 1, a square tube 2, a screw 3, a pad 6, a spring 7, a guide tube 8 and a pressure plate 9. A support plate 1 is provided at both ends of the square tube 2. The screw 3 is arranged on the square tube 2 through a nut 4 and a gasket 5. The pad 6 is arranged on the screw 3 through a nut 4 and a gasket 5.

[0019] The conduit 8 in this embodiment is arranged on the pressure plate 9, the spring 7 is sleeved on the outside of the screw 3, and the spring 7 is located in the conduit 8, the two ends of the spring 7 are respectively abutted against the pad 6 and the pressure plate 9, and a rubber plate 10 is provided at the bottom of the pressure plate 9. The pressure plate 9 is set on the burner cover plate 12 through the nut 4, the gasket 5 and the bolt 11, and the rubber plate 10 is located between the pressure plate 9 and the burner cover plate 12.

[0020] Specifically, the support plate 1 is connected to the burner cover plate 12 through bolts 11, nuts 4 and gaskets 5; the square tube 2 is connected to the support plate 1; the screw 3 is connected to the square tube 2 through nuts 4 and gaskets 5; the conduit 8 is welded to the pressure plate 9, and the spring 7 is sleeved on the screw 3 and placed in the conduit 8 to fix the position of the spring 7 and prevent it from shifting. The pressure plate 9 is pressed by the nut 4 on the screw 3 to tighten the spring 7, and the rubber sheet 10 is placed between the pressure plate 9 and the burner cover plate 12.

[0021] The bracket is welded by a support plate 1 and a square tube 2. The support plate 1 of the bracket is fixed to the burner cover plate 12 with nuts 4, washers 5 and bolts 11, which is easy to install and disassemble.

[0022] The screw rod 3 is fixed to the square tube 2 of the bracket by a nut 4 , and the relative height of the screw rod 3 to the pressure plate 9 can be adjusted by the nut 4 , so as to control the adjustment range of the height of the spring 7 .

[0023] The spring 7 is sleeved on the screw 3 and is pressed against the pad 6 through the nut 4. The height of the pad 6 can be adjusted through the nut 4 to adjust the degree of compression of the shock absorber on the burner cover 12.

[0024] The lower end of the spring 7 is placed in the conduit 8, which can fix the position of the spring 7 and prevent it from shifting, thereby preventing dislocation and uneven force.

[0025] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is merely an example of the structure of the utility model. Any equivalent changes or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the scope of protection of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should fall within the scope of protection of the utility model.

Claims

1. A full premix burner damping device, comprising a support plate (1) and a square tube (2), wherein both ends of the square tube (2) are provided with a support plate (1), characterized in that: It also comprises a screw (3), a pad (6), a spring (7), a conduit (8) and a pressing plate (9), wherein the screw (3) is arranged on the square tube (2), the pad (6) is arranged on the screw (3), the conduit (8) is arranged on the pressing plate (9), the spring (7) is sleeved outside the screw (3), and the spring (7) is located inside the conduit (8), the two ends of the spring (7) are respectively in contact with the pad (6) and the pressing plate (9), and a rubber plate (10) is arranged at the bottom of the pressing plate (9), and the rubber plate (10) is located between the pressing plate (9) and the burner cover plate (12).

2. The full premix burner damping device according to claim 1, characterized in that: The screw rod (3) is arranged on the square tube (2) via a nut (4) and a gasket (5).

3. The full premix burner damping device according to claim 1, characterized in that: The backing plate (6) is arranged on the screw rod (3) via a nut (4) and a washer (5).

4. The full premix burner damping device according to claim 1, characterized in that: The pressure plate (9) is arranged on the burner cover plate (12) via nuts (4), washers (5) and bolts (11).

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