Intelligent backflow-preventing exhaust pipeline

Abstract

The utility model discloses an intelligent backflow prevention exhaust pipeline which comprises a smoke exhaust connecting box, a smoke exhaust pipe and an intelligent air valve, the top of the smoke exhaust connecting box is connected with the smoke exhaust pipe, a first bending part and a second bending part are arranged on the smoke exhaust pipe, the first bending part is bent towards the smoke exhaust connecting box, and the second bending part is bent towards the smoke exhaust connecting box. The portion, away from the smoke exhaust connecting box, of the second bent part is bent, the bottom of the second bent part is connected with an impurity discharging opening, the end, away from the smoke exhaust connecting box, of the smoke exhaust pipe is connected with a smoke outlet pipe, the intelligent air valve is arranged between the smoke exhaust pipe and the smoke outlet pipe, and connecting flanges are connected between the intelligent air valve and the smoke exhaust pipe and between the intelligent air valve and the smoke outlet pipe correspondingly. One side of the intelligent air valve is connected with an intelligent controller, the bottom of the intelligent controller is connected with a connecting line, smoke and gas can be actively discharged in a large scale, the air valve can be intelligently controlled to prevent smoke from flowing back, and condensate water generated by the smoke can be discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pipes, in particular to an intelligent anti-backflow exhaust pipeline. Background Art

[0002] Ventilation exhaust ducts are metal or non-metallic pipes used in ventilation and air-conditioning projects in industrial and civil buildings. Ventilation ducts are a kind of municipal infrastructure designed to allow air circulation and reduce the concentration of harmful gases.

[0003] The patent with application number CN202310254182.4 retrieved proposes a circular arc exhaust duct, which has the effect of reducing the possibility of smoke return in the exhaust duct.

[0004] Similar to the above-mentioned arc exhaust duct, although it has the effect of reducing the possibility of smoke return in the exhaust duct, it can only be used for indoor exhaust and the emission of small-flow smoke and mist. When harmful gases are emitted in the factory, the gas cannot be discharged quickly, and when a large amount of harmful gases are emitted, smoke reflux may occur, thereby affecting work production.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and an intelligent anti-backflow exhaust pipeline is proposed, in order to achieve a more practical purpose. Utility Model Content

[0006] The purpose of the utility model is to provide an intelligent anti-backflow exhaust pipeline to solve the problem that a circular arc exhaust duct mentioned in the above background can only be used for indoor exhaust and the discharge of small flow of smoke and mist. When harmful gases are discharged in the factory, the gas cannot be discharged quickly, and when a large amount of harmful gases are discharged, smoke backflow may occur, thereby affecting work production.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent anti-backflow exhaust pipeline, comprising a smoke exhaust connection box, a smoke exhaust pipe and an intelligent air valve, the top of the smoke exhaust connection box is connected to the smoke exhaust pipe, and the smoke exhaust pipe is provided with a first bending portion and a second bending portion, the No. 1 bending portion is bent toward the smoke exhaust connection box, and the No. 2 bending portion is bent away from the smoke exhaust connection box, the bottom of the No. 2 bending portion is connected to an exhaust port, the end of the smoke exhaust pipe away from the smoke exhaust connection box is connected to a smoke outlet pipe, the intelligent air valve is arranged between the smoke exhaust pipe and the smoke outlet pipe, and the intelligent air valve and the smoke exhaust pipe are all connected with connecting flanges, one side of the intelligent air valve is connected to an intelligent controller, and the bottom of the intelligent controller is connected to a connecting line.

[0008] Preferably, an exhaust fan and a connecting ring are provided inside the intelligent air valve, and the connecting ring is arranged on the side of the exhaust fan close to the smoke exhaust pipe, connecting discs are provided on both sides of the connecting ring, and an air outlet is provided at the center position of the connecting disc.

[0009] Preferably, a group of active connection rotating blocks and three groups of rotating connection blocks are provided on the connecting ring, and the active connection rotating blocks and the group of rotating connection blocks are symmetrical to each other, the active connection rotating blocks and the three groups of rotating connection blocks are provided with transmission teeth near the center of the connecting ring, and the active connection rotating blocks are provided with active teeth on the side away from the transmission teeth.

[0010] Preferably, four groups of connection blocks are connected to the inner side of the connection ring, and a connection shaft is connected to the connection between the connection block and the two groups of connection disks, and the connection shaft is arranged on the outer side of the air outlet.

[0011] Preferably, the four groups of connecting blocks are respectively connected to a group of actively connected rotating blocks and three groups of rotating connecting blocks, and connecting teeth are provided at the connection between the connecting blocks and a group of actively connected rotating blocks or the three groups of rotating connecting blocks, and the connecting teeth are meshed with the transmission teeth.

[0012] Preferably, a motor switch and a fan switch are provided inside the intelligent controller, the fan switch is connected to one side of the exhaust fan, and a control line is connected between the motor switch and the fan switch and the connecting line.

[0013] Preferably, a valve motor is connected to the top of the motor switch, a driving gear is connected to the top of the valve motor, and the driving gear and the driving gear are meshed with each other.

[0014] Compared with the prior art, the utility model has the following beneficial effects: it can actively exhaust smoke and exhaust on a large scale, and it can intelligently control the air valve to prevent smoke backflow, and it can discharge the condensed water generated by the smoke. The specific contents are as follows:

[0015] The smoke in the smoke exhaust pipe condenses on the wall of the smoke exhaust pipe in the second bending part, and the condensed water drops to the bottom of the second bending part and is discharged from the impurity discharge port. The connecting ring is opened and closed by the valve motor, and the valve motor drives the driving gear to rotate, and the driving gear drives the driving teeth on the active connection rotating block on the connecting ring to rotate, thereby driving the connecting ring to rotate. During the rotation of the connecting ring, the three groups of rotating connecting blocks are driven to rotate, and the three groups of rotating connecting blocks and the active connecting rotating blocks respectively drive the connecting teeth on the connecting block to rotate through the transmission teeth connected to them. Thereby driving the connecting block to rotate with the connecting shaft as the axis, so that the three groups of rotating connecting blocks and the active connecting rotating blocks are close to or away from each other, so that the two groups of air outlets are closed or open, and the exhaust fan discharges the smoke to the outside, thereby accelerating the discharge of the smoke, so that a large amount of smoke can be discharged quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the main body of an intelligent anti-backflow exhaust pipeline of the utility model;

[0017] Figure 2 It is a schematic structural diagram of a side section of a smoke exhaust pipe of an intelligent anti-backflow exhaust pipeline of the utility model;

[0018] Figure 3 It is a schematic structural diagram of a side section of an intelligent gas valve of an intelligent anti-backflow exhaust pipeline of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a smoke exhaust and exhaust backflow prevention closed structure of an intelligent backflow prevention exhaust pipeline of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the smoke exhaust and exhaust backflow prevention opening of an intelligent backflow prevention exhaust pipeline of the utility model;

[0021] Figure 6 The utility model is a schematic diagram of the structure of the side section of an intelligent controller for an intelligent anti-backflow exhaust pipeline.

[0022] In the figure: 1. exhaust connection box; 2. exhaust pipe; 21. No. 1 bending part; 22. No. 2 bending part; 221. exhaust port; 3. intelligent gas valve; 31. intelligent controller; 311. connecting line; 312. motor switch; 313. valve motor; 314. driving gear; 315. fan switch; 316. control line; 32. connecting flange; 33. connecting disc; 331. air outlet; 34. connecting ring; 341. active connecting rotating block; 3411. active gear; 342. rotating connecting block; 3421. transmission gear; 35. connecting block; 351. connecting shaft; 352. connecting gear; 36. connecting flange; 4. exhaust pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 6 The utility model provides a technical solution: an intelligent anti-backflow exhaust pipeline, including a smoke exhaust connection box 1, a smoke exhaust pipe 2 and an intelligent air valve 3, the top of the smoke exhaust connection box 1 is connected to the smoke exhaust pipe 2, and the smoke exhaust pipe 2 is provided with a first bending portion 21 and a second bending portion 22, the first bending portion 21 is bent toward the smoke exhaust connection box 1, and the second bending portion 22 is bent away from the smoke exhaust connection box 1, the bottom of the second bending portion 22 is connected with an exhaust port 221, one end of the smoke exhaust pipe 2 away from the smoke exhaust connection box 1 is connected with a smoke outlet pipe 4, the intelligent air valve 3 is arranged between the smoke exhaust pipe 2 and the smoke outlet pipe 4, and a connecting flange 36 is connected between the intelligent air valve 3 and the smoke exhaust pipe 2 and the smoke outlet pipe 4, one side of the intelligent air valve 3 is connected to an intelligent controller 31, and the bottom of the intelligent controller 31 is connected to a connecting line 311.

[0025] The smoke exhaust connection box 1 is used to be connected to the smoke exhaust point of the production equipment, and the smoke in the smoke exhaust connection box 1 is discharged by the smoke exhaust pipe 2, and the smoke exhaust pipe 2 is bent into an "S" shape through the first bend 21 and the second bend 22 to prevent the smoke from flowing back, and the smoke in the smoke exhaust pipe 2 condenses on the wall of the smoke exhaust pipe 2 in the second bend 22, and the condensed water drips to the bottom of the second bend 22 and is discharged from the exhaust port 221, and the smoke passes through the intelligent air valve 3 when being discharged and is discharged from the smoke outlet 4, and the two ends of the intelligent air valve 3 are respectively connected to the smoke exhaust pipe 2 and the smoke outlet pipe 4 through the connecting flange 36, and the intelligent air valve 3 is controlled to open and close by the intelligent controller 31, and the intelligent controller 31 can be connected to the power switch or the smoke detection device through the connecting line 311.

[0026] An exhaust fan 32 and a connecting ring 34 are provided inside the smart air valve 3, and the connecting ring 34 is provided on one side of the exhaust fan 32 close to the smoke exhaust pipe 2, connecting discs 33 are provided on both sides of the connecting ring 34, and an air outlet 331 is provided at the center of the connecting disc 33, and the smart air valve 3 discharges smoke to the outside through the exhaust fan 323, thereby accelerating the discharge of smoke, so that a large amount of smoke can be discharged quickly, and the opening and closing of the smoke discharge is controlled by the connecting ring 34, and the connecting ring 34 is fixedly connected to the connecting disc 33, and the smoke flows through the air outlet 331 on the connecting disc 33.

[0027] A group of active connection rotating blocks 341 and three groups of rotating connection blocks 342 are arranged on the connecting ring 34, and the active connection rotating blocks 341 and the group of rotating connection blocks 342 are symmetrical to each other. Transmission teeth 3421 are arranged on the active connection rotating blocks 341 and the three groups of rotating connection blocks 342 near the center of the connecting ring 34, and a driving tooth 3411 is arranged on the side of the active connection rotating block 341 away from the transmission tooth 3421. Four groups of connection blocks 35 are connected to the inner side of the connecting ring 34, and a connecting shaft 351 is connected to the connection between the connection block 35 and the two groups of connecting discs 33, and the connecting shaft 351 is arranged on the outer side of the air outlet 331. The four groups of connection blocks 35 are respectively connected to a group of active connection rotating blocks 341 and the three groups of rotating connection blocks 342, and the connection block 35 is connected to a group of active connection rotating blocks 341 or three groups of rotating connection blocks 342. A connecting tooth 352 is provided at the connection of the motor switch 312, and the connecting tooth 352 is meshed with the transmission tooth 3421. The top of the motor switch 312 is connected to the valve motor 313, and the top of the valve motor 313 is connected to the driving gear 314, and the driving gear 314 is meshed with the driving tooth 3411. The connecting ring 34 is controlled to open and close by the valve motor 313, and the valve motor 313 drives the driving gear 314 to rotate, and the driving gear 314 drives the driving tooth 3411 on the active connecting rotating block 341 on the connecting ring 34 to rotate, thereby driving the connecting ring 34 to rotate, and the connecting ring 34 drives the three groups of rotating connecting blocks 342 to rotate during the rotation process, and the three groups of rotating connecting blocks 342 and the active connecting rotating block 341 respectively drive the connecting teeth 352 on the connecting stopper 35 to rotate through the transmission teeth 3421 connected thereto. This drives the connection block 35 to rotate around the connection shaft 351 , so that the three groups of rotating connection blocks 342 and the active connecting rotating block 341 move closer to or farther from each other, making the two groups of air outlets 331 closed or open.

[0028] A motor switch 312 and a fan switch 315 are provided inside the intelligent controller 31. The fan switch 315 is connected to one side of the exhaust fan 32. A control line 316 is connected between the motor switch 312, the fan switch 315 and the connecting line 311. The exhaust fan 323 is opened and closed by the fan switch 315, and the valve motor 313 is opened and closed by the motor switch 312. The motor switch 312 and the valve motor 313 are connected to the control line 316 via the connecting line 311, and are opened and closed by the power switch or the smoke detection device.

[0029] Working principle: When using an intelligent anti-backflow exhaust pipeline, first, the two ends of the intelligent air valve 3 are connected to the smoke exhaust pipe 2 and the smoke outlet pipe 4 respectively through the connecting flange 36, and the intelligent controller 31 can be connected to the power switch or the smoke detection device through the connecting line 311. The smoke generated by the production equipment enters the smoke exhaust connection box 1 from the smoke exhaust, and the smoke in the smoke exhaust connection box 1 is discharged from the smoke exhaust pipe 2. The smoke exhaust pipe 2 is bent into an "S" shape through the first bending part 21 and the second bending part 22 to prevent the smoke from flowing back, and the smoke in the smoke exhaust pipe 2 is condensed on the wall of the smoke exhaust pipe 2 in the second bending part 22, and the condensed water drips to the bottom of the second bending part 22 and is discharged from the exhaust port 221. When the smoke is discharged, it passes through the intelligent air valve 3 and is discharged from the smoke outlet 4.

[0030] The intelligent controller 31 controls the opening and closing of the exhaust fan 323 and the motor switch 312, and the exhaust fan 323 is controlled by the fan switch 315, while the valve motor 313 is controlled by the motor switch 312. The motor switch 312 and the valve motor 313 are connected to the control line 316 through the connecting line 311, and the opening and closing are intelligently controlled by the power switch or the smoke detection device, and the exhaust fan 323 discharges the smoke to the outside, thereby accelerating the discharge of the smoke, so that a large amount of smoke can be discharged quickly.

[0031] The connecting ring 34 is opened and closed by the valve motor 313, and the valve motor 313 drives the driving gear 314 to rotate, and the driving gear 314 drives the driving teeth 3411 on the active connecting rotating block 341 on the connecting ring 34 to rotate, thereby driving the connecting ring 34 to rotate, and the connecting ring 34 drives the three groups of rotating connecting blocks 342 to rotate during the rotation process, and the three groups of rotating connecting blocks 342 and the active connecting rotating block 341 respectively drive the connecting teeth 352 on the connecting block 35 to rotate through the transmission teeth 3421 connected thereto. Thus, the connecting block 35 is driven to rotate with the connecting shaft 351 as the axis, so that the three groups of rotating connecting blocks 342 and the active connecting rotating block 341 are close to or away from each other, so that the two groups of air outlets 331 are closed or open.

Claims

1. An intelligent anti-backflow exhaust pipeline, comprising a smoke exhaust connection box (1), a smoke exhaust pipe (2) and an intelligent gas valve (3), characterized in that: The top of the smoke exhaust connection box (1) is connected to a smoke exhaust pipe (2), and the smoke exhaust pipe (2) is provided with a first bending portion (21) and a second bending portion (22), the first bending portion (21) is bent toward the smoke exhaust connection box (1), and the second bending portion (22) is bent away from the smoke exhaust connection box (1), the bottom of the second bending portion (22) is connected to an exhaust port (221), one end of the smoke exhaust pipe (2) away from the smoke exhaust connection box (1) is connected to a smoke outlet pipe (4), the intelligent air valve (3) is arranged between the smoke exhaust pipe (2) and the smoke outlet pipe (4), and a connecting flange (36) is connected between the intelligent air valve (3) and the smoke exhaust pipe (2) and the smoke outlet pipe (4), one side of the intelligent air valve (3) is connected to an intelligent controller (31), and the bottom of the intelligent controller (31) is connected to a connecting line (311).

2. The intelligent anti-backflow exhaust pipeline according to claim 1 is characterized in that: An exhaust fan (32) and a connecting ring (34) are arranged inside the intelligent air valve (3), and the connecting ring (34) is arranged on a side of the exhaust fan (32) close to the smoke exhaust pipe (2), connecting disks (33) are arranged on both sides of the connecting ring (34), and an air outlet (331) is arranged at the center of the connecting disk (33).

3. The intelligent anti-backflow exhaust pipeline according to claim 2 is characterized in that: A group of active connection rotating blocks (341) and three groups of rotating connection blocks (342) are arranged on the connecting ring (34), and the active connection rotating blocks (341) and the group of rotating connection blocks (342) are symmetrical to each other, and transmission teeth (3421) are arranged on the active connection rotating blocks (341) and the three groups of rotating connection blocks (342) near the center of the connecting ring (34), and active teeth (3411) are arranged on a side of the active connection rotating blocks (341) away from the transmission teeth (3421).

4. The intelligent anti-backflow exhaust pipeline according to claim 2 is characterized in that: Four groups of connection blocks (35) are connected to the inner side of the connection ring (34), and a connection shaft (351) is connected to the connection between the connection blocks (35) and the two groups of connection disks (33), and the connection shaft (351) is arranged on the outer side of the air outlet (331).

5. The intelligent anti-backflow exhaust pipeline according to claim 4 is characterized in that: The four groups of connection blocks (35) are respectively connected to a group of active connection rotating blocks (341) and three groups of rotating connection blocks (342), and connection teeth (352) are provided at the connection points between the connection blocks (35) and the group of active connection rotating blocks (341) or the three groups of rotating connection blocks (342), and the connection teeth (352) are meshed with the transmission teeth (3421).

6. The intelligent anti-backflow exhaust pipeline according to claim 5 is characterized in that: A motor switch (312) and a fan switch (315) are disposed inside the intelligent controller (31), the fan switch (315) is connected to one side of the exhaust fan (32), and a control line (316) is connected between the motor switch (312) and the fan switch (315) and the connecting line (311).

7. The intelligent anti-backflow exhaust pipeline according to claim 6 is characterized in that: The top of the motor switch (312) is connected to a valve motor (313), the top of the valve motor (313) is connected to a driving gear (314), and the driving gear (314) and the driving gear (3411) are meshed with each other.

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