Exhaust ventilation equipment

Abstract

The utility model relates to the technical field of exhaust and ventilation equipment, and discloses exhaust and ventilation equipment which is of a double-channel structure, a first exhaust pipe and a second exhaust pipe are arranged on the rear portion of an air suction guide pipe, and the first exhaust pipe and the second exhaust pipe are selectively communicated through a communication mechanism. The communicating cylinder base is driven by the driving motor to be rotationally installed in the sealing cylinder base, the air suction guide pipe can be independently communicated with the first exhaust pipe and the second exhaust pipe through rotation for channel switching, the structure is simple, work is reliable, discharged chlorine can be classified through channel switching according to the chlorine concentration change, and the chlorine treatment efficiency is improved. Unnecessary resource consumption is avoided, the chlorine treatment cost can be reduced while the working flexibility of the device is improved, the electric butterfly valve is arranged in the middle of the air suction guide pipe, the electric butterfly valve and the communicating mechanism are synchronously in a closed state after chlorine is exhausted, and the sealing protection performance in the working chamber can be effectively improved through double sealing.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust ventilation equipment technical field, concretely is a kind of exhaust ventilation equipment. BACKGROUND

[0002] Liquid chlorine filling platform is used to store and fill liquid chlorine special equipment, liquid chlorine filling platform plays an important role in chemical industry, it not only ensures the safe storage of liquid chlorine, also responsible for accurately filling liquid chlorine to transport container or use point. Since liquid chlorine has high corrosivity and toxicity, therefore, when designing and operating filling platform, relevant safety specifications and operating procedures must be strictly followed, in addition, complete exhaust ventilation system is set to the outside of filling platform, when chlorine gas leaks, exhaust ventilation equipment can efficiently complete the harmless discharge treatment of leaked gas, is important working device to ensure liquid chlorine filling work.

[0003] When discharging leaked chlorine, chlorine is discharged through special pipeline, the traditional exhaust pipeline is mostly single group setting, since filling equipment has self-closing valve structure, in the process of chlorine discharge, the concentration of chlorine will quickly decrease with exhaust time, for high concentration chlorine, specific recovery and processing device is needed, while for low concentration gas in later stage, recovery significance and processing mode are relatively loose, traditional single-path exhaust structure cannot switch gas path, and use flexibility is poor, and it will cause the increase of purification treatment cost, therefore, an exhaust ventilation equipment is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an exhaust ventilation equipment to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an exhaust ventilation equipment, including exhaust mechanism and intercommunication mechanism, the exhaust mechanism includes air suction duct, first exhaust pipe, second exhaust pipe and electric butterfly valve, the first exhaust pipe and second exhaust pipe are alternately communicated and installed in the rear portion of air suction duct through intercommunication mechanism, the middle part of first exhaust pipe and second exhaust pipe is equipped with exhaust fan, and the electric butterfly valve is installed in the middle part of air suction duct.

[0006] The intercommunication mechanism includes sealing cylinder seat, intercommunication cylinder seat, connecting ring seat and driving motor, the intercommunication cylinder seat is rotatably installed in the inside of sealing cylinder seat under the drive of driving motor, the front portion of sealing cylinder seat is rotatabally communicated with air suction duct through connecting ring seat, and the rear portion of sealing cylinder seat is alternately communicated with first exhaust pipe and second exhaust pipe through rotation.

[0007] As preferred, the communication cylinder seat is rotatably and fitly installed in the inner part of the sealing cylinder seat, the driving motor is fixedly installed at the rear part of the sealing cylinder seat, and the driving output end of the driving motor is fixedly installed with the rear shaft end of the communication cylinder seat through a rotating shaft.

[0008] As preferred, the front and rear sides of the communication cylinder seat are respectively provided with an air inlet and an air outlet, the air inlet and the air outlet are communicated, the air inlet is arranged at the middle part of the front side of the communication cylinder seat, and the end tube side of the air inlet is rotatably and fitly installed with the rear part of the connecting ring seat.

[0009] As preferred, the air outlet is arranged at the eccentric side of the rear part of the communication cylinder seat, the outer side of the air outlet is fixedly installed with a sealing ring pad, the rear part of the inner cavity of the sealing cylinder seat is provided with a transposition groove, and the sealing ring pad is slidably and fitly installed at the inner side of the transposition groove after installation.

[0010] As preferred, the two sides of the transposition groove are respectively provided with a communication hole, the rear part of the sealing cylinder seat is communicated and installed with a first exhaust pipe and a second exhaust pipe through the communication holes, and two groups of the exhaust fans are fixedly and communicated installed at the inner sides of the pipe bodies of the first exhaust pipe and the second exhaust pipe.

[0011] As preferred, the front part of the connecting ring seat is rotatably and fitly installed with the rear end of the air suction guide pipe, the electric butterfly valve is fixedly installed at the inner side of the pipe body of the middle part of the air suction guide pipe, and the inner side of the air suction guide pipe is fixedly installed with a half-ring limiting seat, and the side of the valve plate of the electric butterfly valve is in contact and fit with the half-ring limiting seat after being closed.

[0012] As preferred, the front end of the air suction guide pipe is fixedly and communicated installed with an exhaust end seat, the inner part of the exhaust end seat is provided with a concentration sensor, and the front opening side of the exhaust end seat is provided with an exhaust grid.

[0013] Compared with the prior art, the above technical scheme has the following technical effects:

[0014] The exhaust ventilation equipment adopts a double-path structure, the first exhaust pipe and the second exhaust pipe are arranged at the rear part of the air suction guide pipe, the first exhaust pipe and the second exhaust pipe are selectively communicated through a communication mechanism, the communication cylinder seat is rotatably and fitly installed in the inner part of the sealing cylinder seat through the driving motor, the air suction guide pipe is independently communicated with the first exhaust pipe and the second exhaust pipe through path switching, the structure is simple and reliable, the discharged chlorine gas can be classified and treated through path switching according to the chlorine concentration change, unnecessary resource consumption is avoided, the device working flexibility is improved, the chlorine treatment cost is reduced, the electric butterfly valve is arranged at the middle part of the air suction guide pipe, the electric butterfly valve and the communication mechanism are in a closed state synchronously after the chlorine gas is discharged, and the sealing protection of the working chamber is effectively improved through double sealing. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings belong to the protection scope of the present application.

[0016] Figure 1 It is a whole lifting front side three-dimensional structure schematic view of the present application.

[0017] Figure 2 It is a whole lifting rear side three-dimensional structure schematic view of the present application.

[0018] Figure 3 It is a communication cylinder seat front side three-dimensional structure schematic view of the present application.

[0019] Figure 4 It is a communication cylinder seat rear side three-dimensional structure schematic view of the present application.

[0020] Figure 5 It is a sealing cylinder seat internal structure schematic view of the present application.

[0021] Figure 6 It is a suction duct local section structure schematic view of the present application.

[0022] The figure mark explanation: 1, suction duct; 2, first exhaust pipe; 3, second exhaust pipe; 4, exhaust fan; 5, electric butterfly valve; 6, exhaust end seat; 7, exhaust grid; 8, sealing cylinder seat; 9, communication cylinder seat; 10, connecting ring seat; 11, driving motor; 12, air outlet; 13, air inlet; 14, sealing ring pad; 15, communication hole; 16, transposition groove; 17, half ring limiting seat. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] Please see Figures 1-6 This utility model provides a technical solution: an exhaust ventilation device, including an exhaust mechanism and a connecting mechanism. The exhaust mechanism is used for guiding the flow of gas. The exhaust mechanism includes an air intake duct 1, a first exhaust pipe 2, a second exhaust pipe 3, and an electric butterfly valve 5. The inner walls of the first exhaust pipe 2 and the second exhaust pipe 3 are both treated with corrosion resistance. The connecting mechanism is used for the alternating connection of the first exhaust pipe 2 and the second exhaust pipe 3. The connecting mechanism includes a sealing cylinder seat 8, a connecting cylinder seat 9, a connecting ring seat 10, and a drive motor 11.

[0027] The connecting cylinder seat 9 is rotatably mounted inside the sealing cylinder seat 8 under the drive of the drive motor 11, as detailed in the attached diagram. Figure 2 As shown, the connecting cylinder seat 9 is rotatably fitted inside the sealing cylinder seat 8. The drive motor 11 is a geared motor, and a reducer is integrated on the upper part of the drive motor 11, as shown in the attached figure. Figure 4 As shown, the reducer is fixedly installed at the rear of the sealed cylinder seat 8, the drive motor 11 is fixedly installed at the rear of the reducer, the shaft end of the drive motor 11 is fixedly installed with the input shaft end of the reducer, and the drive output end of the reducer is fixedly installed with the rear shaft end of the connecting cylinder seat 9 through the shaft, which can provide a stable rotational driving force for the connecting cylinder seat 9.

[0028] The first exhaust pipe 2 and the second exhaust pipe 3 are alternately connected and installed at the rear of the suction duct 1 via a connecting mechanism. Specifically, to facilitate the flow and guidance of chlorine gas, as shown in the attached diagram... Figure 4 As shown, an air inlet 13 and an air outlet 12 are respectively provided on the front and rear sides of the connecting cylinder seat 9. The air inlet 13 and the air outlet 12 are connected. The air outlet 12 is located on the rear eccentric side of the connecting cylinder seat 9. In order to improve the sealing of the connection side, a sealing ring gasket 14 is fixedly installed on the outside of the air outlet 12. A displacement groove 16 is provided in the rear part of the inner cavity of the sealing cylinder seat 8. After installation, the sealing ring gasket 14 is slidably fitted into the inner side of the displacement groove 16. In order to achieve alternating connection, as shown in the attached figure... Figure 5As shown, the two sides of the transposition groove 16 are provided with communication holes 15, the rear part of the sealing cylinder seat 8 is communicated and installed with the first exhaust pipe 2 and the second exhaust pipe 3 through the communication holes 15, the communication cylinder seat 9 is rotatably installed in the inside of the sealing cylinder seat 8 by the driving of the driving motor 11, the air inlet pipe 1 is independently communicated with the first exhaust pipe 2 and the second exhaust pipe 3 by the rotation of the passage switching, the structure is simple and reliable, according to the change of the chlorine concentration, the discharged chlorine can be classified and treated by the passage switching, unnecessary resource consumption is avoided, the working flexibility of the device is improved, and the treatment cost of chlorine is reduced.

[0029] In order to efficiently discharge chlorine, exhaust fans 4 are installed in the middle parts of the first exhaust pipe 2 and the second exhaust pipe 3, specifically, the exhaust fan 4 is an explosion-proof electric air blower, as shown in the accompanying drawings Figure 1 As shown, the two groups of exhaust fans 4 are fixedly and communicatively installed on the inner sides of the pipe bodies of the first exhaust pipe 2 and the second exhaust pipe 3, which can provide air draft driving force for chlorine discharge.

[0030] The front part of the sealing cylinder seat 8 is rotatably communicated with the air inlet pipe 1 through the connecting ring seat 10, specifically, as shown in the accompanying drawings Figure 6 As shown, the air inlet 13 is arranged in the middle part of the front side of the communication cylinder seat 9, the end pipe side of the air inlet 13 is rotatably and fitly installed with the rear part of the connecting ring seat 10, the front part of the connecting ring seat 10 is rotatably and fitly installed with the rear end of the air inlet pipe 1, which can realize the rotatable communication installation with the air inlet pipe 1, the electric butterfly valve 5 is a power-driven butterfly valve, the electric butterfly valve 5 is fixedly installed on the inner side of the pipe body in the middle part of the air inlet pipe 1, the electric butterfly valve 5 includes a driving part and a valve piece, in order to improve the closing sealing property and positioning accuracy of the valve piece, a half-ring limiting seat 17 is fixedly installed on the inner side of the air inlet pipe 1, the side of the valve piece of the electric butterfly valve 5 is in contact and fit with the half-ring limiting seat 17 after closing, the electric butterfly valve 5 is in a closed state synchronously with the communication mechanism after the chlorine discharge, the double sealing can effectively improve the sealing protection property in the working chamber, in order to facilitate ventilation, an exhaust end seat 6 is fixedly and communicatively installed on the front end of the air inlet pipe 1, in order to detect the chlorine concentration in real time, a concentration sensor is arranged in the inside of the exhaust end seat 6, the concentration sensor is used for detecting the concentration of chlorine entering the exhaust end seat 6, the model of the concentration sensor can be PXT980-CL2-A-20, which is a prior art device, in order to improve the air inlet side protection property of the exhaust end seat 6, an exhaust grid 7 is arranged on the front part of the exhaust end seat 6.

[0031] The working principle or structural principle, when not working, the electric butterfly valve 5 and the communication barrel 9 are in a closed state, forming a double sealing structure to ensure the sealing protection of the working chamber, when detecting chlorine leakage, the electric butterfly valve 5 is opened and the communication barrel 9 is switched from closing to the first communication position under the driving of the driving motor 11, at this time, the air outlet 12 at the rear of the communication barrel 9 is coincided with the communication hole 15 on the side of the first exhaust pipe 2, then the exhaust fan 4 on the upper part of the first exhaust pipe 2 works, and the chlorine is discharged into the treatment device on the outlet side of the first exhaust pipe 2 through exhaust air, so that the high-concentration chlorine is recycled and treated, when the concentration sensor in the exhaust end seat 6 detects that the chlorine concentration reaches the discharge index, the exhaust fan 4 stops working, and the communication barrel 9 is rotated to the second communication position, then the exhaust fan 4 on the upper part of the second exhaust pipe 3 works, and the remaining chlorine is discharged into the corresponding treatment device at the end of the second exhaust pipe 3, through the switching of the passage, the discharged chlorine can be classified and treated, unnecessary resource consumption is avoided, then when the chlorine concentration reaches the safety index, the exhaust fan 4 stops working, then the electric butterfly valve 5 is closed, and the communication barrel 9 is rotated to the closed position, and the exhaust work is completed.

[0032] In summary, the exhaust ventilation equipment adopts a double-passage structure, the first exhaust pipe 2 and the second exhaust pipe 3 are arranged at the rear of the air suction duct 1, the first exhaust pipe 2 and the second exhaust pipe 3 are selectively communicated through the communication mechanism, the communication barrel 9 is driven and rotated by the driving motor 11 and is arranged in the inside of the sealing barrel 8, the air suction duct 1 can be independently communicated with the first exhaust pipe 2 and the second exhaust pipe 3 through the rotation of the communication barrel 9 for switching the passage, the structure is simple and reliable, according to the change of the chlorine concentration, the discharged chlorine can be classified and treated through the switching of the passage, unnecessary resource consumption is avoided, the working flexibility of the device is improved, the treatment cost of the chlorine is reduced, and the electric butterfly valve 5 is arranged in the middle part of the air suction duct 1, after the chlorine is discharged, the electric butterfly valve 5 and the communication mechanism are in a closed state synchronously, and the sealing protection of the working chamber can be effectively improved through double sealing.

[0033] Those skilled in the art can understand that the features described in various embodiments and / or claims of the present application can be combined or / and combined, even if such combinations or combinations are not explicitly described in the present application. In particular, the features described in various embodiments and / or claims of the present application can be combined and / or combined without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. An exhaust ventilation device comprising an exhaust mechanism and a communication mechanism, characterized by: The exhaust mechanism comprises an air suction guide pipe (1), a first exhaust pipe (2), a second exhaust pipe (3) and an electric butterfly valve (5), the first exhaust pipe (2) and the second exhaust pipe (3) are alternately communicated and installed at the rear part of the air suction guide pipe (1) through a communication mechanism, the middle part of the first exhaust pipe (2) and the second exhaust pipe (3) is provided with an exhaust fan (4), and the electric butterfly valve (5) is installed at the middle part of the air suction guide pipe (1). The communication mechanism comprises a sealing cylinder seat (8), a communication cylinder seat (9), a connecting ring seat (10) and a driving motor (11), the communication cylinder seat (9) is rotatably installed in the sealing cylinder seat (8) under the driving of the driving motor (11), the front part of the sealing cylinder seat (8) is rotatably communicated with the air suction guide pipe (1) through the connecting ring seat (10), and the rear part of the sealing cylinder seat (8) is alternately communicated with the first exhaust pipe (2) and the second exhaust pipe (3) through rotation.

2. An exhaust ventilation apparatus according to claim 1, characterised in that: The communication cylinder seat (9) is rotatably embedded and installed in the sealing cylinder seat (8), the driving motor (11) is fixedly installed at the rear part of the sealing cylinder seat (8), and the driving output end of the driving motor (11) is fixedly installed with the rear shaft end of the communication cylinder seat (9) through a rotating shaft.

3. An exhaust ventilation apparatus according to claim 2, characterised in that: The front and rear sides of the communication cylinder seat (9) are respectively provided with an air inlet (13) and an air outlet (12), the air inlet (13) and the air outlet (12) are communicated, the air inlet (13) is arranged at the middle part of the front side of the communication cylinder seat (9), and the end pipe side of the air inlet (13) is rotatably embedded and installed with the rear part of the connecting ring seat (10).

4. An exhaust ventilation apparatus according to claim 3, wherein: The air outlet (12) is arranged at the eccentric side of the rear part of the communication cylinder seat (9), the outer side of the air outlet (12) is fixedly installed with a sealing ring pad (14), the rear part of the inner cavity of the sealing cylinder seat (8) is provided with a transposition groove (16), and the sealing ring pad (14) is slidably embedded and installed at the inner side of the transposition groove (16) after installation.

5. An exhaust ventilation apparatus according to claim 4, characterised in that: The two sides of the transposition groove (16) are respectively provided with a communication hole (15), the rear part of the sealing cylinder seat (8) is communicated and installed with the first exhaust pipe (2) and the second exhaust pipe (3) through the communication hole (15), and two groups of the exhaust fans (4) are fixedly and communicatively installed at the inner sides of the pipe bodies of the first exhaust pipe (2) and the second exhaust pipe (3).

6. An exhaust ventilation apparatus according to claim 3, wherein: The front part of the connecting ring seat (10) is rotatably embedded and installed with the rear end of the air suction guide pipe (1), the electric butterfly valve (5) is fixedly installed at the inner side of the pipe body of the middle part of the air suction guide pipe (1), and the inner side of the air suction guide pipe (1) is fixedly installed with a half-ring limiting seat (17), and the side of the valve piece of the electric butterfly valve (5) is in contact with the half-ring limiting seat (17) after closing.

7. An exhaust ventilation apparatus according to claim 6, characterised in that: The front end of the air suction guide pipe (1) is fixedly and communicatively installed with an exhaust end seat (6), the inner part of the exhaust end seat (6) is provided with a concentration sensor, and the front opening side of the exhaust end seat (6) is provided with an exhaust grid (7).

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