Gas-fired hot-air heater muffle silencer

Abstract

The utility model relates to the technical field of flue heat insulation, especially relates to gas hot gas ware flue type mute heat insulation storehouse. Its technical scheme includes: including heat insulation storehouse body, the inside fixed mounting of heat insulation storehouse body has the pipeline, the end fixed mounting of pipeline has the connecting piece, sealing mechanism, including built -in locating cylinder, built -in locating cylinder fixed mounting is in the inside of connecting piece, the end fixed mounting of built -in locating cylinder has the gas guide cylinder extending to the inside of pipeline, gas flows from the inside of connecting piece to the inside of pipeline, the inside fixed mounting of pipeline has the abut ring, the gas guide cylinder is stuck to the inner wall of abut ring. The utility model passes through the flow of gas from the gas guide cylinder, and the gas exerts the thrust to the abut ring to the gas guide cylinder, makes the gas guide cylinder stick to the abut ring, and the stress of gas guide cylinder will make the convex ring deform in the ring groove, further improve the sealing effect, avoid heat and gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of flue insulation technology, and in particular to a silent heat insulation chamber for a gas-fired heater flue. Background Technology

[0002] Gas water heaters generate a large amount of heat during operation, resulting in high temperatures around the flue. A silent, insulated chamber effectively blocks heat transfer, reducing heat loss to the surrounding environment. This improves the energy efficiency of the water heater and prevents damage to surrounding objects or safety hazards caused by overheating of the flue, such as preventing the ignition of nearby flammable materials.

[0003] The soundproof and heat-insulating chamber for flues is made of materials with low thermal conductivity, such as polyurethane foam and polystyrene foam. These materials can effectively prevent heat conduction and reduce the dissipation of heat from the flue to the surrounding environment.

[0004] Because the flue temperature changes greatly when the water heater is working, the rigid sound insulation material at the flue connection expands at high temperatures and contracts at low temperatures. Over a long period of time, this repeated expansion and contraction can cause gaps to appear at the seal, leading to exhaust gas leakage and reducing the sound insulation effect. Utility Model Content

[0005] The purpose of this invention is to address the problem in the background technology that rigid sound insulation materials will develop gaps at the sealing points due to long-term repeated heating, and to propose a flue-type silent heat insulation chamber for gas-fired heaters.

[0006] The technical solution of this utility model is: a flue-type silent heat insulation chamber for a gas-fired heater, including a heat insulation chamber body, a pipe fixedly installed inside the heat insulation chamber body, and a connector fixedly installed at the end of the pipe;

[0007] A sealing mechanism includes a built-in positioning cylinder, which is fixedly installed inside a connector. A gas guide tube extending into the inside of a pipe is fixedly installed at the end of the built-in positioning cylinder. Gas flows from inside the connector into the inside of the pipe. A retaining ring is fixedly installed inside the pipe, and the gas guide tube abuts against the inner wall of the retaining ring.

[0008] A noise reduction mechanism is installed at the connection between the heat insulation chamber body and the pipeline.

[0009] Optionally, the gas guide tube is a trumpet-shaped guide tube made of ceramicized silicone rubber, and a thermal expansion pad is fixedly installed at the end of the gas guide tube. The outer wall of the thermal expansion pad is in contact with the pipe, and the thermal expansion pad blocks the gap between the abutment ring and the gas guide tube.

[0010] Optionally, a convex ring is fixedly installed on the outer wall of the gas guide tube, and an annular groove is formed on the inner wall of the abutment ring. The convex ring adopts an annular structure and fills the interior of the annular groove.

[0011] Optionally, there is a sandwich between the built-in positioning cylinder and the connector, and the thermal expansion pad is fixedly installed in the sandwich.

[0012] Optionally, the noise reduction mechanism includes a first connecting pipe, and an integrally formed shock-absorbing ring is fixedly installed on the outer wall of the first connecting pipe. The outer wall of the shock-absorbing ring is fixedly connected to the heat insulation chamber body.

[0013] Optionally, the first connecting pipe is fixedly installed in the middle of the pipeline, and a second connecting pipe is fixedly installed at the connection between the first connecting pipe and the shock-absorbing ring. A fixing frame is fixedly installed on the top of the heat insulation chamber body, and the second connecting pipe is mounted on the top of the fixing frame.

[0014] Optionally, the first connecting pipe is a high-temperature resistant damping pipe, and the second connecting pipe is a rock wool pipe.

[0015] Optionally, the heat insulation chamber body is made of stainless steel aluminum plate, and the interior of the heat insulation chamber body is lined with a ceramic fiber layer and a stainless steel foil layer.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] This invention utilizes the flow of gas from the gas guide tube, which exerts a thrust on the gas guide tube towards the abutment ring, causing the gas guide tube to adhere to the abutment ring. Simultaneously, the force on the gas guide tube causes the convex ring to deform within the ring groove, further improving the sealing effect and preventing heat and gas leakage.

[0018] Furthermore, by replacing the pipe with a damping ring and a first connecting pipe to directly connect to the insulation chamber body, noise generated by the vibration of the pipe and the insulation chamber body is avoided. The first connecting pipe, the second connecting pipe and the pipe are connected to reduce the solid-borne sound transmission efficiency, thereby reducing noise. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is provided;

[0020] Figure 2 for Figure 1 A schematic diagram of the first connecting pipe structure in part A;

[0021] Figure 3 A front view schematic diagram of the heat insulation chamber body structure of this utility model is provided;

[0022] Figure 4 A cross-sectional schematic diagram of the connector structure of this utility model is provided.

[0023] Reference numerals in the attached drawings: 1. Insulation chamber body; 2. Pipe; 3. Connector; 4. Sealing mechanism; 41. Internal positioning cylinder; 42. Gas guide cylinder; 43. Thermal expansion pad; 44. Abutment ring; 45. Protruding ring; 46. Annular groove; 5. Noise reduction mechanism; 51. First connecting pipe; 52. Shock-absorbing ring; 53. Fixing frame; 54. Second connecting pipe. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] This embodiment proposes a flue-type silent and insulated chamber for gas-fired heaters, such as... Figure 1As shown, it includes a heat insulation chamber body 1, which is made of stainless steel aluminum plate. The interior of the heat insulation chamber body 1 is lined with a ceramic fiber layer and a stainless steel foil layer. The ceramic fiber layer and the stainless steel foil layer are used for heat insulation and noise reduction. A pipe 2 is fixedly installed inside the heat insulation chamber body 1, and a connector 3 is fixedly installed at the end of the pipe 2.

[0031] like Figure 3 and Figure 4 As shown, a sealing mechanism 4 is provided inside the connector 3. The sealing mechanism 4 includes a built-in positioning cylinder 41, which is fixedly installed inside the connector 3. A gas guide cylinder 42 extending into the pipe 2 is fixedly installed at the end of the built-in positioning cylinder 41. The gas guide cylinder 42 is a trumpet-shaped guide cylinder made of ceramicized silicone rubber. Gas flows from inside the connector 3 into the pipe 2. A retaining ring 44 is fixedly installed inside the pipe 2. The gas guide cylinder 42 is attached to the inner wall of the retaining ring 44.

[0032] When the gas flows from the gas guide tube 42, it exerts a thrust on the gas guide tube 42, increasing the adhesion between the gas guide tube 42 and the abutment ring 44, thereby reducing the gap between the gas guide tube 42 and the abutment ring 44, hindering the flow of gas between the gas guide tube 42 and the abutment ring 44, and improving the sealing effect.

[0033] There is a sandwich between the built-in positioning cylinder 41 and the connector 3. The thermal expansion pad 43 is fixedly installed in the sandwich. The end of the gas guide cylinder 42 is fixedly installed with the thermal expansion pad 43. The outer wall of the thermal expansion pad 43 is in contact with the pipe 2. The thermal expansion pad 43 blocks the gap between the abutment ring 44 and the gas guide cylinder 42.

[0034] A convex ring 45 is fixedly installed on the outer wall of the gas guide tube 42, and an annular groove 46 is opened on the inner wall of the abutment ring 44. The convex ring 45 adopts an annular structure and fills the interior of the annular groove 46.

[0035] The convex ring 45 is filled inside the annular groove 46, and in conjunction with the thrust of the gas on the gas guide tube 42, the sealing effect between the pipe 2 and the connector 3 is improved, thus preventing gas leakage.

[0036] In this embodiment, as gas flows from the gas guide tube 42, the gas exerts a thrust on the gas guide tube 42 toward the abutment ring 44, causing the gas guide tube 42 to abut against the abutment ring 44. At the same time, the force on the gas guide tube 42 causes the convex ring 45 to deform within the annular groove 46, further improving the sealing effect and preventing heat and gas leakage.

[0037] Example 2

[0038] Based on Example 1, this example proposes a flue-type silent and insulated chamber for gas-fired heaters, such as... Figure 1 and Figure 2As shown, a noise reduction mechanism 5 is provided at the connection between the heat insulation chamber body 1 and the pipe 2. The noise reduction mechanism 5 includes a first connecting pipe 51, and an integrally formed shock-absorbing ring 52 is fixedly installed on the outer wall of the first connecting pipe 51. The outer wall of the shock-absorbing ring 52 is fixedly connected to the heat insulation chamber body 1.

[0039] Since the combustion of gas will generate vibration, the damping ring 52 and the first connecting pipe 51 are used to replace the pipe 2 and directly connect to the heat insulation chamber body 1 to avoid the vibration of the pipe 2 and the heat insulation chamber body 1, which will generate noise.

[0040] The first connecting pipe 51 is fixedly installed in the middle of the pipe 2. The second connecting pipe 54 is fixedly installed at the connection between the first connecting pipe 51 and the shock-absorbing ring 52. The top of the heat insulation chamber body 1 is fixedly installed with a fixing frame 53. The second connecting pipe 54 is mounted on the top of the fixing frame 53. The first connecting pipe 51 is a high-temperature resistant damping pipe, and the second connecting pipe 54 is a rock wool pipe.

[0041] The first connecting pipe 51 serves as a damping layer, and the second connecting pipe 54 serves as a sound-absorbing layer. The first connecting pipe 51 reduces structural noise by dissipating vibration energy. When the pipe 2 vibrates, the first connecting pipe 51 undergoes shear deformation, converting mechanical energy into heat energy for dissipation, thereby suppressing high-frequency vibration and resonance of the pipe 2 and reducing solid-borne sound transmission.

[0042] In this embodiment, the damping ring 52 and the first connecting pipe 51 replace the pipe 2 and are directly connected to the heat insulation chamber body 1 to avoid noise generated by the vibration of the pipe 2 and the heat insulation chamber body 1. The first connecting pipe 51, the second connecting pipe 54 are connected to the pipe 2 to reduce the solid-borne sound transmission efficiency and achieve the effect of reducing noise.

[0043] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A flue-type silent heat insulation chamber for a gas-fired heater, comprising a heat insulation chamber body (1), wherein a pipe (2) is fixedly installed inside the heat insulation chamber body (1), and a connector (3) is fixedly installed at the end of the pipe (2), characterized in that: The sealing mechanism (4) includes a built-in positioning cylinder (41), which is fixedly installed inside the connector (3). A gas guide cylinder (42) extending into the pipe (2) is fixedly installed at the end of the built-in positioning cylinder (41). Gas flows from the connector (3) into the pipe (2). A retaining ring (44) is fixedly installed inside the pipe (2). The gas guide cylinder (42) abuts against the inner wall of the retaining ring (44). A noise reduction mechanism (5) is provided at the connection between the heat insulation chamber body (1) and the pipe (2).

2. The silent and insulated chamber of the gas-fired heater flue type according to claim 1, characterized in that: The gas guide tube (42) is a horn-shaped guide tube made of ceramicized silicone rubber. A thermal expansion pad (43) is fixedly installed at the end of the gas guide tube (42). The outer wall of the thermal expansion pad (43) is in contact with the pipe (2). The thermal expansion pad (43) blocks the gap between the abutment ring (44) and the gas guide tube (42).

3. The silent and insulated heat chamber of the gas-fired heater flue according to claim 2, characterized in that: A convex ring (45) is fixedly installed on the outer wall of the gas guide tube (42), and an annular groove (46) is opened on the inner wall of the abutment ring (44). The convex ring (45) adopts an annular structure and is filled inside the annular groove (46).

4. The silent and insulated heat chamber of the gas-fired heater flue according to claim 3, characterized in that: There is a sandwich between the built-in positioning cylinder (41) and the connector (3), and the thermal expansion pad (43) is fixedly installed in the sandwich.

5. The silent and insulated heat chamber of the gas-fired heater flue type according to claim 1, characterized in that: The noise reduction mechanism (5) includes a first connecting pipe (51), and an integrally formed shock-absorbing ring (52) is fixedly installed on the outer wall of the first connecting pipe (51). The outer wall of the shock-absorbing ring (52) is fixedly connected to the heat insulation chamber body (1).

6. The silent and insulated heat chamber of the gas-fired heater flue type according to claim 5, characterized in that: The first connecting pipe (51) is fixedly installed in the middle of the pipe (2), and a second connecting pipe (54) is fixedly installed at the connection between the first connecting pipe (51) and the shock-absorbing ring (52). A fixing frame (53) is fixedly installed on the top of the heat insulation chamber body (1), and the second connecting pipe (54) is mounted on the top of the fixing frame (53).

7. The silent and insulated heat chamber of the gas-fired heater flue according to claim 6, characterized in that: The first connecting pipe (51) is a high-temperature damping pipe, and the second connecting pipe (54) is a rock wool pipe.

8. The silent and insulated heat chamber of the gas-fired heater flue type according to claim 1, characterized in that: The heat insulation chamber body (1) is made of stainless steel aluminum plate, and the interior of the heat insulation chamber body (1) is lined with a ceramic fiber layer and a stainless steel foil layer.

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