Smoke exhaust system for flue

Abstract

The utility model relates to a flue smoke exhaust system, and belongs to the technical field of smoke exhaust, the flue smoke exhaust system comprises a flow guide cover used for being connected with a flue and a valve body connected with the flow guide cover, and the side, away from the valve body, of the flow guide cover is provided with a smoke outlet; the side, away from the valve body, of the flow guide cover is connected with a flue, the flow guide cover is not inserted into the flue, and the smoke outlet communicates with the interior of the flue. According to the invention, the smoothness of flue gas flowing in the public flue can be improved; and the installation is convenient and simple.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of flue gas exhaust, in particular to a flue gas exhaust system. BACKGROUND

[0002] The flue gas exhaust fireproof check valve can effectively prevent the toxic gas and oil fume discharged from other houses in the public flue from flowing back into the house.

[0003] In the related art, a public flue gas exhaust fireproof check valve is disclosed in Chinese Patent No. CN117515232A, which comprises a valve shell, a valve cover movably connected inside the valve shell, a flue clamping mechanism arranged on the outer wall of the valve shell, and a flow guide cover connected at the valve port on the other side of the valve shell. As shown in the accompanying drawings, the flow guide cover is located inside the public flue.

[0004] In the related art, since the flow guide cover is located inside the public flue, it occupies a certain space inside the public flue, and the rising process of the flue gas in the public flue hinders the flow of part of the flue gas, thereby affecting the smoothness of the flue gas flow in the public flue. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the smoothness of the flue gas flow in the public flue, the application provides a flue gas exhaust system.

[0006] The flue gas exhaust system provided by the application adopts the following technical scheme:

[0007] The flue gas exhaust system comprises a flow guide cover for connecting with a flue and a valve body connected with the flow guide cover, one side of the flow guide cover away from the valve body is provided with a flue gas outlet, the one side of the flow guide cover away from the valve body is connected with the flue, and the flow guide cover is not inserted into the flue, and the flue gas outlet is connected with the inside of the flue.

[0008] Optionally, the one side of the flow guide cover away from the valve body is provided with a butt joint sleeve inserted into the flue.

[0009] Optionally, the butt joint sleeve is coated with a circle of sealing fixing glue at the connection position with the flue.

[0010] Optionally, a connection sleeve is arranged on the outer wall of the flue, the connection sleeve is connected with the inside of the flue, the valve body is located on the one side of the connection sleeve away from the flue and is connected with the connection sleeve, and the flow guide cover is located inside the connection sleeve and is connected with the inside of the connection sleeve.

[0011] Optionally, a connecting bolt is embedded on the outer wall of the flue, and the connecting sleeve is provided with a mounting hole on the side close to the flue, through which the connecting bolt passes and is connected with a nut.

[0012] Optionally, the connecting sleeve is outwardly bent with a flange on the side close to the flue, and the mounting hole is arranged on the flange.

[0013] Optionally, the valve body is connected with the connecting sleeve through a bolt.

[0014] Optionally, a threaded sleeve is embedded in the flue, and the connecting sleeve is connected with a bolt, which is threadedly connected with the threaded sleeve.

[0015] In summary, the present application has at least one of the following beneficial technical effects:

[0016] 1. The check valve is directly located outside the flue during installation, without being inserted into the interior of the flue to occupy the space in the flue, so that the flue gas flows more smoothly.

[0017] 2. The abutting sleeve arranged on the fairing enables the check valve to be inserted into the opening of the flue to realize pre-positioning installation during installation, thereby improving the convenience of the check valve installation.

[0018] 3. The connecting sleeve provides an installation position for the check valve, and the check valve only needs to be fixed on the connecting sleeve through a bolt during installation, thereby further improving the convenience of the check valve installation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a flue exhaust system of the embodiment of the present application.

[0020] Figure 2 is a schematic diagram of the installation of the check valve in the first embodiment of the present application.

[0021] Figure 3 is an exploded view of the fairing and the valve body in the first embodiment of the present application.

[0022] Figure 4 is a schematic diagram of the installation of the check valve in the third embodiment of the present application.

[0023] Reference signs: 1, fairing; 11, flue gas outlet; 12, abutting sleeve; 2, valve body; 3, connecting sleeve; 31, flange; 32, mounting hole; 33, extension edge. DETAILED DESCRIPTION

[0024] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0025] The embodiment of the present application discloses a flue exhaust system.

[0026] Embodiment one: combination Figure 1 Referring to Figure 2 With Figure 3 , the flue exhaust system comprises a fairing 1 and a valve body 2, the valve body 2 is located on one side of the fairing 1, and the valve body 2 is connected with the fairing 1 by bolts. The side of the fairing 1 away from the valve body 2 is provided with a flue gas outlet 11. When the valve body 2 is opened, the flue gas in the family will enter the fairing 1 and be discharged from the flue gas outlet 11. The side of the fairing 1 provided with the flue gas outlet 11 is installed on the outer wall of the public flue, and the outer wall of the public flue is provided with an opening communicating with the inside. The flue gas outlet 11 and the opening on the public flue communicate with each other, and the fairing 1 does not extend into the inside of the public flue. Further, when the flue gas of the fairing 1 passes through the flue gas outlet 11 and enters the public flue, the fairing 1 does not occupy the space in the public flue, and does not hinder the flow of flue gas in the public flue, thereby improving the smoothness of the flue gas flow in the public flue.

[0027] Referring to Figure 2 With Figure 3 , wherein the fairing 1 is integrally formed with a butt joint sleeve 12 on the side provided with the flue gas outlet 11, and the flue gas outlet 11 is located inside the butt joint sleeve 12. The butt joint sleeve 12 can be inserted into the opening of the public flue to realize positioning installation, so that the flue gas check valve is more convenient to install with the flue. It is worth noting that the butt joint sleeve 12 does not extend into the inside of the public flue to affect the flow of flue gas.

[0028] Referring to Figure 2 With Figure 3 , in order to prevent flue gas from leaking from the gap between the butt joint sleeve 12 and the opening of the public flue, a circle of sealing fixing glue is applied to the outer wall of the opening of the public flue, and a circle of sealing fixing glue is also applied to the outer wall of the butt joint sleeve 12 for sealing, and the fairing 1 is fixedly installed on the outer wall of the public flue by the sealing fixing glue. In another embodiment, the fairing 1 can also be fixedly installed on the public flue by bolts.

[0029] The implementation principle of the flue exhaust system of the embodiment of the application is that during installation, the valve body 2 is first installed on the fairing 1, and then the butt joint sleeve 12 is inserted into the opening of the flue, but the butt joint sleeve 12 does not extend into the inside of the flue, so that the entire check valve is located outside the flue and does not extend into the inside of the flue to occupy the space in the inside of the flue, thereby making the flue gas in the flue flow more smoothly.

[0030] Embodiment two: the difference between this embodiment and embodiment one is that the side of the fairing 1 provided with the flue gas outlet 11 is outwardly bent with a convex edge (not shown in the figure), and the convex edge is fixedly installed on the outer wall of the public flue by bolts.

[0031] Embodiment three: refer to Figure 3 With Figure 4 The difference between this embodiment and embodiment one is that a connecting sleeve 3 is arranged at the opening of the common flue, the opening of the common flue is inside the connecting sleeve 3. The valve body 2 is arranged at the side of the connecting sleeve 3 away from the flue and is connected with the connecting sleeve 3, and the flow guide cover 1 is arranged inside the connecting sleeve 3 and is connected with the inside of the connecting sleeve 3.

[0032] Refer to Figure 3 With Figure 4 The side of the connecting sleeve 3 close to the common flue is outwardly bent with a flange 31, the flange 31 is provided with a mounting hole 32, and a connecting bolt is embedded in the common flue, the connecting bolt is inserted through the mounting hole 32 and is connected with a nut, so as to fix the connecting sleeve 3 on the outer wall of the common flue. The side of the connecting sleeve 3 close to the valve body 2 is outwardly bent with an extended edge 33, and the valve body 2 is installed on the extended edge 33 through a bolt. In another embodiment, a threaded sleeve is embedded in the common flue, a bolt is connected with the flange 31, and the bolt is threadedly connected with the threaded sleeve to fix the connecting sleeve 3 on the common flue. In another way, the flow guide cover 1 can not be arranged, and the valve body 2 can be directly installed on the side of the connecting sleeve 3 away from the common flue.

[0033] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A flue gas exhaust system characterized by: The application relates to a valve body (2) connected with a guide cover (1) for a flue, wherein the side of the guide cover (1) away from the valve body (2) is provided with a flue gas outlet (11), the side of the guide cover (1) away from the valve body (2) is connected with the flue, the guide cover (1) is not inserted into the flue, and the flue gas outlet (11) is communicated with the inside of the flue.

2. A flue gas exhaust system according to claim 1, wherein: The side of the guide cover (1) away from the valve body (2) is provided with a butt joint sleeve (12) inserted into the flue.

3. A flue gas exhaust system according to claim 2, wherein: The butt joint sleeve (12) is coated with a circle of sealing fixing glue at the connecting position with the flue.

4. A flue gas exhaust system according to claim 1, wherein: The outer wall of the flue is provided with a connecting sleeve (3) communicated with the inside of the flue, the valve body (2) is located at the side of the connecting sleeve (3) away from the flue and is connected with the connecting sleeve (3), and the guide cover (1) is located in the connecting sleeve (3) and is communicated with the inside of the connecting sleeve (3).

5. A flue gas exhaust system according to claim 4, wherein: Connecting bolts are pre-embedded on the outer wall of the flue, the connecting sleeve (3) is provided with mounting holes (32) on the side close to the flue, the connecting bolts pass through the mounting holes (32) and are connected with nuts.

6. A flue gas exhaust system according to claim 5, wherein: The side close to the flue of the connecting sleeve (3) is outwardly bent with a flange (31), and the mounting holes (32) are arranged on the flange (31).

7. A flue gas exhaust system according to claim 4, wherein: The valve body (2) is connected with the connecting sleeve (3) through bolts.

8. A flue gas exhaust system according to claim 4, wherein: Threaded sleeves are pre-embedded in the flue, and the connecting sleeve (3) is connected with bolts, and the bolts are threadedly connected with the threaded sleeves.

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