A one-way valve structure for furnace dust exhaust

Abstract

The utility model discloses a one-way valve structure for furnace dust exhaust, comprising a one-way valve body, flanges are arranged at both ends of the one-way valve body, and a limit assembly, wherein the limit assembly has two U-shaped frames and the limit frames, the two U-shaped frames are connected to one side of the flange, the inner walls of the two U-shaped frames are installed with limit frames, blocks are arranged at both ends of one U-shaped frame, and slots for matching the blocks are provided at both ends of the other U-shaped frame. The blocks are inserted into the slots to limit the two U-shaped frames, and the concave parts of the four limit frames are respectively matched with the corresponding bolts to limit the bolts, thereby preventing the bolts from rotating when the one-way valve body is used, improving the stability of the connection between the one-way valve body and the pipeline, effectively reducing the risk of smoke leakage, thereby reducing the frequency of shutdown and maintenance due to equipment failure, not only reducing maintenance costs, but also improving the operation efficiency of the furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace dust exhaust port valves, in particular to a one-way valve structure used for furnace dust exhaust. Background Art

[0002] In the furnace dust exhaust system, the one-way valve is a key component, which is used to ensure that the smoke flows in a specific direction, prevent backflow, and ensure the stable operation of the furnace and environmental protection. When the one-way valve is connected to the furnace pipeline, the pipeline and the flange on the one-way valve are fixed by bolts. However, the one-way valve structure in the prior art still has certain defects when used and needs to be improved;

[0003] When the one-way valve structure in the prior art is in use, the pipeline and the flange on the one-way valve are connected by bolts. During long-term use, due to the high temperature of the exhaust gas discharged from the dust exhaust port of the furnace, under complex working conditions such as high temperature and vibration, the bolts are prone to loosening or rotating, resulting in failure of the connection between the one-way valve and the pipeline, causing smoke leakage, posing a threat to the environment and personnel safety. Therefore, a one-way valve structure for furnace dust exhaust is proposed to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model aims to solve the defect in the prior art that it is inconvenient to limit the flange for connecting the one-way valve, and proposes a one-way valve structure for furnace dust exhaust.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A one-way valve structure for furnace dust exhaust comprises a one-way valve body. Both ends of the one-way valve body are provided with flanges.

[0007] It also includes a limit assembly, which has two U-shaped frames and a limit frame. The two U-shaped frames are connected to one side of the flange, and the limit frames are installed on the inner walls of the two U-shaped frames. Blocks are installed at both ends of one U-shaped frame, and slots matching the block are opened at both ends of the other U-shaped frame.

[0008] A fixed frame is installed on the top of the flange, a slide groove is opened inside the fixed frame, a stopper slides in the slide groove, plug rods are connected on both sides of the stopper, and a stopper is installed on the two U-shaped frames, and one end of the two stoppers is opened with a slot that cooperates with the plug rod.

[0009] Preferably, an air inlet and an air outlet are respectively provided at both ends of the one-way valve body, and two flanges are respectively arranged on the air inlet and the air outlet.

[0010] Preferably, a retaining groove is provided in the fixing frame, and the retaining groove is located at the bottom of the sliding groove.

[0011] Preferably, the stop block is in an "L" shape, and one end of the stop block is connected to the stop groove.

[0012] Preferably, there are two stoppers, and the other stopper is located at the top of the fixing frame.

[0013] Preferably, the two U-shaped frames cooperate to form a rectangle, and the four limiting frames are located at the corners of the U-shaped frames.

[0014] The utility model has the following beneficial effects:

[0015] 1. Under the cooperation of the limit frame and the clamping block, the clamping block is inserted into the clamping slot to limit the two U-shaped frames. At this time, the concave parts of the four limit frames are respectively matched on the corresponding bolts to limit the bolts. At this time, the bolts can be prevented from rotating when the one-way valve body is in use, which improves the stability of the connection between the one-way valve body and the pipeline, effectively reduces the risk of smoke leakage, and thus reduces the frequency of shutdown and maintenance due to equipment failure, which not only reduces maintenance costs, but also improves the operation efficiency of the kiln;

[0016] 2. With the cooperation of the stop block and the insertion rod, after the two U-shaped frames are merged, the two stop blocks move to the middle of the fixed frame. At this time, after the insertion rod is moved to the bottom, the two insertion rods limit the stop blocks respectively, further fixing the limit assembly, thereby increasing the stability of the device during use, and being easy to install and disassemble, easy to carry and to repair the one-way valve body, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the one-way valve body;

[0018] Figure 2 It is a schematic diagram of the structure of the flange and the limit assembly;

[0019] Figure 3 It is a structural schematic diagram of the limit assembly;

[0020] Figure 4 It is a structural schematic diagram of the support block and the fixed frame.

[0021] In the figure: 1. one-way valve body; 101. air inlet; 102. air outlet; 2. flange; 3. limit assembly; 301. U-shaped frame; 302. limit frame; 303. clamping block; 304. clamping slot; 4. stop block; 401. slot; 5. fixing frame; 501. stop slot; 502. slide slot; 6. plug rod; 7. stop block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A one-way valve structure for furnace dust exhaust includes a one-way valve body 1, and an air inlet 101 and an air outlet 102 are respectively opened at both ends of the one-way valve body 1. Smoke enters the one-way valve body 1 from the air inlet 101 and is discharged from the air outlet 102. Two flanges 2 are respectively arranged on the air inlet 101 and the air outlet 102. Both ends of the one-way valve body 1 are provided with flanges 2, and the furnace pipeline is connected through the flanges 2.

[0024] The limiting assembly 3 has two U-shaped frames 301 and a limiting frame 302. The two U-shaped frames 301 cooperate to form a rectangle, and the four limiting frames 302 are located at the corners of the U-shaped frames 301, so that the positions of the limiting frames 302 and the bolts correspond to each other. The two U-shaped frames 301 are connected to one side of the flange 2. The limiting frames 302 are installed on the inner walls of the two U-shaped frames 301. The limiting frames 302 are provided with recesses, which correspond to the shape of the bolts, so that the limiting frames 302 can be matched with the bolts. Blocks 30 are installed at both ends of a U-shaped frame 301. 3. The other two ends of the U-shaped frame 301 are provided with slots 304 for matching the block 303. After the one-way valve body 1 and the flange 2 of the furnace pipeline are connected by bolts, the two U-shaped frames 301 are merged along one side of the flange 2, so that the block 303 is inserted into the slot 304 to limit the two U-shaped frames 301. At this time, the concave parts of the four limiting frames 302 are respectively matched with the corresponding bolts to limit the bolts. At this time, the bolts can be prevented from rotating when the one-way valve body 1 is in use, thereby improving the stability of the connection between the one-way valve body 1 and the pipeline.

[0025] A fixed frame 5 is installed on the top of the flange 2, and a groove 501 is provided in the fixed frame 5. The groove 501 is located at the bottom of the slide groove 502. A slide groove 502 is provided inside the fixed frame 5. A stopper 7 is slidable in the slide groove 502. There are two stoppers 7. The other stopper 7 is located at the top of the fixed frame 5. The stopper 7 limits the movement of the plug rod 6 to prevent it from moving outside the fixed frame 5. The plug rod 6 is connected to both sides of the stopper 7. A stopper 4 is installed on the two U-shaped frames 301. The stopper 4 is "L" shaped. One end of the stopper 4 is connected to the groove 501. After 301 are merged, the two resist blocks 4 are both located in the resist groove 501. One end of the two resist blocks 4 is provided with a slot 401 that cooperates with the insertion rod 6. When the two U-shaped frames 301 are merged, the insertion rod 6 is pulled toward the top. At this time, the stopper 7 slides in the slide groove 502 to prevent the insertion rod 6 from moving too far and moving out of the fixed frame 5. After the two U-shaped frames 301 are merged, the two resist blocks 4 move to the middle of the fixed frame 5. At this time, the insertion rod 6 is moved to the bottom, so that the bottom ends of the two insertion rods 6 are respectively inserted into the corresponding slots 401 to limit the resist blocks 4, thereby further fixing the limit assembly 3.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A one-way valve structure for furnace dust exhaust, characterized in that: include: A one-way valve body (1), wherein both ends of the one-way valve body (1) are provided with flanges (2); The device also comprises a limit assembly (3), wherein the limit assembly (3) comprises two U-shaped frames (301) and a limit frame (302), wherein the two U-shaped frames (301) are connected to one side of the flange (2), the limit frames (302) are installed on the inner walls of the two U-shaped frames (301), a clamping block (303) is installed at both ends of one of the U-shaped frames (301), and a clamping groove (304) matching the clamping block (303) is provided at both ends of the other U-shaped frame (301); A fixed frame (5) is installed on the top of the flange (2), a slide groove (502) is provided inside the fixed frame (5), a stopper (7) slides inside the slide groove (502), both sides of the stopper (7) are connected with an insertion rod (6), and a stopper (4) is installed on the two U-shaped frames (301), and one end of the two stoppers (4) is provided with a slot (401) that cooperates with the insertion rod (6).

2. A one-way valve structure for furnace dust exhaust according to claim 1, characterized in that: An air inlet (101) and an air outlet (102) are respectively provided at both ends of the one-way valve body (1), and the two flanges (2) are respectively arranged on the air inlet (101) and the air outlet (102).

3. A one-way valve structure for furnace dust exhaust according to claim 1, characterized in that: The fixing frame (5) is provided with a support groove (501), and the support groove (501) is located at the bottom of the slide groove (502).

4. A one-way valve structure for furnace dust exhaust according to claim 3, characterized in that: The stop block (4) is in an "L" shape, and one end of the stop block (4) is connected to the stop groove (501).

5. The one-way valve structure for furnace dust exhaust according to claim 1, characterized in that: The number of the stoppers (7) is two, and the other stopper (7) is located at the top of the fixed frame (5).

6. A one-way valve structure for furnace dust exhaust according to claim 1, characterized in that: The two U-shaped frames (301) cooperate to form a rectangle, and the four limiting frames (302) are located at the corners of the U-shaped frame (301).

Images