CN216742890U - Intelligent valve and centralized smoke exhaust system - Google Patents

Abstract

The utility model relates to the technical field of kitchen equipment, in particular to an intelligent valve and a centralized smoke exhaust system, which comprises a valve body, a valve block and a driving system, wherein the valve body is provided with a wind channel; the valve plate is arranged along the air duct intercepting surface in a sliding mode and can intercept the air duct; the driving system is connected with the valve body and the valve plate and controls the valve plate to slide to a preset position in a reciprocating mode from the air duct outer part to the air duct inner part along the cutoff surface. The intelligent valve and the centralized smoke exhaust system provided by the utility model can realize two effects of fireproof non-return and power distribution, and combine the original fireproof non-return valve and the original power distribution valve into a whole, thereby reducing the installation steps, improving the installation efficiency, saving the installation space and reducing the cost; the inside space in wind channel can also be practiced thrift in the setting of valve block slidingtype, has promoted the biggest ventilation efficiency in wind channel.

Description

Intelligent valve and centralized smoke exhaust system

Technical Field

The utility model relates to a kitchen equipment technical field, concretely relates to intelligent valve and concentrated system of discharging fume.

Background

The current multi-storey residential kitchens began to employ a centralized fume extraction system for removing the fumes produced by the kitchens, the system comprising: the intelligent indoor smoke distribution system comprises an outdoor host, a public flue, indoor flues and indoor terminals, wherein the outdoor host, the public flue, the indoor flues and the indoor terminals are sequentially communicated, a plurality of indoor cigarettes are communicated with the public flue, and each indoor flue is respectively provided with a fire damper and a power distribution valve. The fire prevention valve is a mechanical fire prevention check valve, cannot be intelligently linked with the range hood, does not have a fire prevention early warning function, and the opening angle of the valve plate is uncontrollable; the non-return function mainly depends on the acting force of a spring, and the smoke discharge resistance is increased while the sealing performance of the valve plate is improved by increasing the acting force of the spring; in addition, when the fire damper is installed on a public flue, a valve body is usually placed in the flue after a hole is formed in the flue and is sealed by using structural adhesive, and the valve body may incline or shift during the curing of the sealing adhesive, so that poor sealing is caused; the power distribution valve is used for balancing the air exhaust amount of residents on each floor, a single valve plate overturning structure is adopted mostly, air distribution is carried out according to the opening angle and the projection area of the valve plate, the calculation precision is poor, in addition, the power distribution valve realizes the sealing function through the compression of the valve plate and the valve seat, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses (one) the technical problem that solve is: the fire prevention valve and the power distribution valve need to be installed in the existing smoke exhaust system respectively, the two valves exist simultaneously, the installation steps are complex, the product cost and the installation cost are high, the valve body arranged in the air duct in an overturning mode influences the maximum ventilation efficiency of the air duct, and the ventilation area cannot be accurately calculated.

(II) technical scheme

In order to solve the technical problem, an embodiment of the utility model provides an aspect provides an intelligent valve, include: the valve comprises a valve body, a valve plate and a driving system, wherein an air duct is arranged on the valve body; the valve plate is arranged along the air duct intercepting surface in a sliding mode and can intercept the air duct; the driving system is connected with the valve body and the valve plate and controls the valve plate to slide to a preset position in a reciprocating mode from the air duct outer part to the air duct inner part along the cutoff surface.

According to the utility model discloses an embodiment, the wind channel inner wall still is equipped with and holds the gliding valve block groove of valve block works as the valve block is not located during wind channel both ends, the valve block groove does the slip of valve block provides predetermined space.

According to the utility model discloses an embodiment, the valve block includes first valve block and second valve block, first valve block with the second valve block is opened and shut the setting mutually, and slides opposite direction, works as first valve block with when the second valve block is closed the valve block cuts the wind channel, the setting of first valve block and second valve block makes the wind channel opens and shuts between two parties, avoids leading to wind channel one side to ventilate because of single valve block for the effect is not good.

According to the utility model discloses an embodiment, first valve block and second valve block closed end are equipped with the sealing member that corresponds the setting, the sealing member can improve first valve block with leakproofness between the second valve block avoids gas leakage.

According to the utility model discloses an embodiment, first valve block main part with second valve block main part all is semicircle sheet structure, and the homonymy all is equipped with the pivot hole, actuating system connects the pivot hole, and can control first valve block with the second valve block is along pivot hole axial rotation slip to open and shut to predetermined angle of opening and shutting, rotary drive helps calculating the draught area of valve block department, improves the precision of amount of wind distribution.

According to the utility model discloses an embodiment, actuating system includes, pivot, driving medium, motor and control box, the pivot is fixed set up in it is downthehole that the pivot, one end is passed through the driving medium is connected the motor, the control box can receive external instruction and send the motor to control the operating condition of motor, control box external power supply does the smart valve power supply.

According to the utility model discloses an embodiment still includes motor support and motor cover, motor support one end fixed connection the valve body, other end fixed stay the motor, the motor cover in the motor with the motor support outside prevents to lead to the motor impaired because of external environment.

According to the utility model discloses an embodiment, the gear motor of motor for having braking system, gear motor have the brake rapidly, and the location is accurate, characteristics such as safe and reliable, and realization that can be better is right the control of valve block.

According to the utility model discloses an embodiment, still be equipped with temperature sensor and alarm device who is used for monitoring temperature in the wind channel on the valve body, temperature sensor connects actuating system works as when temperature sensor detects that the wind channel internal temperature surpasss the default, actuating system control the valve block cuts the wind channel triggers alarm device simultaneously and sends out the police dispatch newspaper to realize the purpose of fire prevention non return, the early warning that alarm device sent, make the indoor personnel perception of very first time, can effectively utilize best time of fleing.

According to the utility model discloses an embodiment still includes power-off protection system, works as temperature surpasss the default in the wind channel, just the valve block cuts during the wind channel, power-off protection system cuts off actuating system's power prevents that the control box from being heated the damage and sending the mistake instruction and reopen the valve block.

According to the utility model discloses an embodiment still includes the mount pad, the mount pad set up in wind channel air-out end, including fixed cover and external connecting plate, fixed cover cup joint in wind channel air-out end outer wall, the external connecting plate is connected to the inner, and the outer end is equipped with the elasticity trip of evagination, the elasticity card with the cooperation of external connecting plate can be used for with the mount pad joint is on the flue wall, makes the mount pad with the connection of flue wall is more stable.

According to the utility model discloses an embodiment, fixed cover outer wall still is equipped with the sol groove, still be equipped with the intercommunication on the sol groove the through-hole of fixed cover inner wall passes through when the mount pad is installed the through-hole to sol inslot pours into the structure and glues, makes the mount pad with the connection of flue wall is more stable.

An embodiment of the utility model provides a concentrated smoke exhaust system, including outdoor host computer, public flue, indoor flue and the terminating machine that communicates in proper order, public flue with indoor flue passes through the smart valve intercommunication, the smart valve is any embodiment of the aforesaid smart valve, outdoor host computer with the terminating machine all is equipped with and is used for control actuating system's controlling device is through the valve block on the every family's the intelligent valve of centralized control smoke exhaust system to guarantee that every layer of every family's amount of wind terminating machine is the same in the building.

According to the utility model discloses an embodiment, the fixed supply socket who is equipped with for the terminating machine power supply of smart valve one end, supply socket's setting is convenient the power connection of terminating machine.

The utility model has the advantages that: the utility model provides an intelligent valve and concentrated exhaust fume system, wherein, intelligent valve can realize two kinds of effects of fire prevention non return and power distribution, unites two into one original fire prevention check valve and power distribution valve, has reduced the installation step, has improved the installation effectiveness, has saved the installation space simultaneously, the cost is reduced; the inside space in wind channel can also be practiced thrift in the setting of valve block slidingtype, has promoted the biggest ventilation efficiency in wind channel.

The centralized smoke exhaust system can control the air volume of each household to be adjusted through the intelligent valve, and compared with the existing turnover valve plate, the sliding valve plate is more favorable for controlling and accurately calculating the ventilation area of the air channel of the valve body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a centralized smoke exhaust system according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a first angle of the smart valve according to an embodiment of the present invention;

fig. 3 is a schematic perspective view illustrating an explosion of an intelligent valve according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a valve body according to an embodiment of the present invention;

fig. 5 is a schematic second-angle perspective view of the smart valve according to an embodiment of the present invention;

fig. 6 is a schematic front view of an intelligent valve according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a valve body according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a valve plate structure according to an embodiment of the present invention;

fig. 9 is a schematic view of a three-dimensional explosion of the smart valve connected to the common flue according to an embodiment of the present invention;

fig. 10 is a left-side schematic view of the connection between the smart valve and the common flue according to an embodiment of the present invention;

FIG. 11 is an enlarged view of the part A of FIG. 10;

fig. 12 is a schematic view of a first-angle three-dimensional structure of a mounting seat according to an embodiment of the present invention;

fig. 13 is a schematic perspective view of a second angle of the mounting base according to an embodiment of the present invention;

fig. 14 is a schematic perspective view of an indoor flue connector according to an embodiment of the present invention.

Icon: 1. a valve body; 101. a left valve body plate; 102. a right valve body plate; 11. an air duct; 12. a valve plate groove; 13. a temperature sensor; 14. a fixed part; 15. a wireless communication module; 16. a mounting seat; 161. fixing a sleeve; 1611. an elastic clamping hook; 1612. a sol tank; 1613. a through hole; 162. an outer connecting plate; 17. a power socket; 18. an indoor flue connection; 181. a connector slot; 2. a valve plate; 21. a first valve plate; 22. a second valve plate; 23. a seal member; 24. a rotating shaft hole; 3. a drive system; 31. a rotating shaft; 32. a transmission member; 33. a motor; 34. a control box; 35. a support; 36. a motor cover; 40. an outdoor host; 50. a common flue; 60. an indoor flue; 70. a terminal machine.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understandable, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description, and without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 14, the utility model provides an intelligent valve, which comprises a valve body 1, a valve block 2 and a driving system 3, wherein, the main body of the valve body 1 is a circular plate, the central position of the circular plate of the valve body 1 is provided with an air duct 11, the flow direction of the air duct 11 is perpendicular to the central position of the circular plate of the valve body 1 and runs through the valve body 1, the air duct 11 is formed by a cylindrical structure, the inner wall of the joint of the air duct and the circular plate is provided with a valve block groove 12, and the valve block groove 12 extends into the circular plate; the valve plate 2 is arranged in the valve plate groove 12, the valve plate groove 12 provides a preset space for the sliding of the valve plate 2, the valve plate 2 can slide perpendicular to the air duct 11, the sliding surface forms one of the intercepting surfaces of the air duct 11, and the valve plate groove 12 can slide into the air duct 11 to intercept the air duct 11; the driving system 3 is connected with the valve body 1 and the valve plate 2 and controls the valve plate 2 to slide to a preset position in a reciprocating manner from the outside of the air duct 11 to the inside of the air duct 11 along the cutoff surface.

The valve body 1 main part is the circle form board and comprises left valve body board 101 and the right valve body board 102 that can dismantle the concatenation, concatenation department is equipped with fixed part 14, and the concatenation is provided with and does benefit to the installation and the maintenance of valve block 2 and other parts.

As shown in fig. 3, fig. 6, fig. 7 and fig. 8, valve sheet 2 includes first valve sheet 21 and second valve sheet 22, first valve sheet 21 with second valve sheet 22 opens and shuts the setting relatively, and sliding direction is opposite, and the main part all is semicircle sheet structure, and the homonymy all is equipped with pivot hole 24, pivot hole 24 is used for pegging graft pivot 31 that actuating system 3 went up the setting, and by pivot 31 in the actuating system 3 drives first valve sheet 21 with second valve sheet 22 is along 24 axial rotational sliding in pivot hole, first valve sheet 21 with two are opposite in rotating direction, through the angle that opens and shuts of controlling first valve sheet 21 and second valve sheet 22, thereby make 11 air duct ventilation area of valve sheet 2 department's section is controllable, and this rotary drive helps calculating the ventilation area of valve sheet 2 department, improves the precision of air volume distribution.

When first valve block 21 with when second valve block 22 is closed valve block 2 cuts wind channel 11, the relative setting of first valve block 21 and second valve block 22 still makes wind channel 11 opens and shuts between two parties, avoids leading to because of single valve block 11 flow path in wind channel 11 is in wind channel 11 one side, has avoided the ventilation effect not good simultaneously and wind channel 11 to be difficult to clear up the maintenance.

First valve block 21 and second valve block 22 closed end are equipped with the sealing member 23 that corresponds the setting, sealing member 23 is slot and the inserted sheet of relative setting, the slot sets up in the closed end of first face of starting, the inserted sheet set up in the closed end of second valve block 22, sealing member 23 can improve first valve block 21 with leakproofness between the second valve block 22 avoids gas leakage.

As shown in fig. 3 and 10, the drive system 3 includes: pivot 31, driving medium 32, motor 33 and control box 34, driving medium 32 is including the drive gear and the driven gear that are connected, pivot 31 includes first pivot and second pivot, and wherein first pivot one end is fixed peg graft in the pivot hole 24 of first valve block 21, the other end passes through drive gear connects motor 33, the fixed peg graft of second pivot with in the pivot hole 24 of second valve block 22, the other end is connected driven gear, when motor 33 rotates can drive gear rotates thereby drive driven gear rotates, and drive through first pivot and second pivot the rotation of first valve block 21 and second valve block 22, wherein drive gear with driven gear rotates the opposite direction, makes first valve block 21 with the rotatory slip opposite direction of rotation of second valve block 22, control box 34 has connect wireless communication module 15 and is used for receiving the instruction that terminating machine 70 and outdoor host 40 sent and the rotation of outdoor host computer 40 is opposite, and control box 34 has been used for receiving terminating machine 70 and outdoor host computer 40 and send And the command is transmitted to the motor 33 and used for controlling the working state of the motor 33, and the control box 34 is externally connected with a power supply and supplies power to the intelligent valve.

The motor 33 is a speed reducing motor with a braking system, the speed reducing motor has the characteristics of rapid braking, accurate positioning, safety, reliability and the like, and the valve plate 2 can be better controlled.

As shown in fig. 3, 5 and 10, the driving system 3 further includes a motor bracket 35 and a motor cover 36, one end of the motor bracket 35 is fixedly connected to the outer side of the circular plate structure of the valve body 1, the other end of the motor bracket 35 is fixedly connected to the motor 33, the motor bracket 35 can prevent the motor 33 from being displaced, and the motor cover 36 covers the motor 33 and the outer side of the motor bracket 35 to prevent the motor 33 from being damaged due to external environment.

As shown in fig. 3, the valve body 1 is further provided with a temperature sensor 13 and an alarm device for monitoring the temperature in the air duct 11, the alarm device is located in the control box 34, the temperature sensor 13 is located on the right valve body plate 102 of the valve body 1 and is connected with the driving system 3, when the temperature sensor 13 detects that the temperature in the air duct 11 exceeds a preset value, the driving system 3 controls the first valve plate 21 and the second valve plate 22 to close and block the air duct 11, and simultaneously triggers the alarm device to give out a sound alarm, so that the purpose of fire prevention and non-return is achieved, and an early warning is given out by the alarm device, so that indoor personnel can sense the temperature at the first time, and the optimal escape time can be effectively utilized.

The utility model discloses in another embodiment, intelligence valve still includes power-off protection system, works as the temperature surpasss the default in the wind channel 11, just valve block 2 cuts during the wind channel 11, power-off protection system cuts off actuating system 3's power prevents that control box 34 from being heated the damage and sending the wrong instruction and reopen the valve block.

As shown in fig. 9 to 13, the mount pad 16 set up in wind channel 11 air-out end for connect public flue 50 and wind channel 11, set up in on the 50 lateral walls of public flue, including fixed cover 161 and external connecting plate 162, fixed cover 161 cup joint in 11 air-out end outer walls in wind channel, external connecting plate 162 perpendicular to the lateral wall of fixed cover 161 the inner, fixed cover 161 the inner end is connected with external connecting plate 162, and the outer end is equipped with three group's elasticity trip 1611 that evagination and equidistance set up, elasticity trip 1611 with the cooperation of external connecting plate 162 can be used for with mount pad 16 joint is on the flue wall, makes mount pad 16 with the connection of flue wall is more stable. Fixed cover 161 outer wall still is equipped with sol groove 1612, still be equipped with the intercommunication on the sol groove 1612 3 group's equidistance through-hole 1613 of fixed cover 161 inner wall passes through when mount pad 16 installs through-hole 1613 to inject the structure glue in the sol groove 1612, make mount pad 16 with the connection of flue wall is more stable.

As shown in fig. 1, one of them embodiment of the utility model also provides a concentrated smoke exhaust system, including outdoor host computer 40, public flue 50, indoor flue 60 and the terminating machine 70 that communicates in proper order, public flue 50 with indoor flue 60 passes through intelligent valve intercommunication, intelligent valve is above-mentioned any embodiment intelligent valve, outdoor host computer 40 with terminating machine 70 all is equipped with and is used for control actuating system 3's controlling device slides to different default positions through valve block 2 on the intelligent valve of each family's smoke exhaust system of centralized control to guarantee that every layer of each family's terminating machine 70 amount of wind is the same in the building.

As shown in fig. 5, a power socket 17 for supplying power to the terminal 70 is fixed at one end of the smart valve, and the power socket 17 is provided to facilitate power connection of the terminal 70.

And (3) intelligent valve installation:

firstly, a circular opening for installing the mounting seat 16 is formed in the side wall of the public flue 50 by using a hole digger; the outer end of the fixing sleeve 161 is pushed into the mounting hole, the elastic clamping hook retracts in the process, and when the elastic clamping hook 1611 crosses the side wall of the public flue 50, the elastic clamping hook protrudes outwards again, so that the elastic clamping hook is clamped on the wall of the public flue 50; structural adhesive is injected into the three glue injecting holes of the mounting base, so that the annular glue containing space is filled with the structural adhesive; inserting the air outlet end of the air duct 11 of the intelligent valve into the mounting base to enable the mounting clamping hook on the mounting base to be tightly matched with the mounting clamping groove on the outer wall of the air duct 11; one end of the indoor flue connecting piece 18 with the connecting piece clamping groove 181 is inserted into the air inlet end of the air duct 11, so that the connecting piece clamping groove 181 is clamped with the inner wall of the air inlet end of the air duct 11 to form tight fit.

The working principle and the control process are as follows:

when the terminal machine 70 is opened or closed, the control box 34 sends a corresponding instruction according to the working state of the terminal machine 70 to control the operation of the speed reducing motor, the speed reducing motor operates to drive the first valve plate 21 to rotate, and the transmission gear connected with the first valve plate 21 drives the driven gear to drive the second valve plate 22 to rotate, so that the intelligent valve is opened or closed. The control box 34 in the intelligent valve is connected with the wireless communication module 15, and can realize communication linkage with the outdoor host 40, and when the host sends an instruction, the control box 34 of the intelligent valve can also control the speed reduction motor to operate according to the host instruction, so that the valve plate 2 is opened to a required angle.

Be equipped with temperature sensor 13 and sound early warning device on the intelligence valve, when public flue 50 takes place the condition of a fire, temperature sensor 13 detects when the temperature reaches the fire prevention temperature value of presetting in the 34 procedures of control box, judge that the condition of a fire takes place, control box 34 sends the instruction and makes sound early warning device continuously report to the police, send instruction control gear motor operation simultaneously and close valve block 2, send the instruction and cut off control box 34 power input after control box 34 receives the feedback information that valve block 2 closed the target in place, prevent that control box 34 from being heated and damaging and send the wrong instruction and reopen valve block 2.

The principle of improving the air volume distribution accuracy is as follows: the centralized smoke exhaust system can be applied to high-rise residential buildings, an outdoor host machine 40 is arranged on the top of the building and provides power for terminal machines 70 of users of the whole building, the air quantity of each terminal machine 70 of each family from the first building to the top of the building needs to be guaranteed to be the same in the process, the opening angles of the first valve plate 21 and the second valve plate 22 are controlled, the opening angles of each floor are different, and accurate calculation needs to be carried out according to the number of floors and the air quantity during design. Most of the existing power distribution valves adopt a single-valve-plate overturning structure, when the opening angle is calculated, the ventilation area needs to be determined by simultaneously considering the assumed opening angle of the valve plate and the projection area of the valve plate and the valve body 1, the calculation error of the ventilation area is large, usually an initial value is calculated, and then the final opening angle of each layer is determined according to field experiment optimization, so that an error exists; this utility model provides a structure is opened in valve block 2 slides, only needs to consider the opening angle of first valve block 21 and second valve block 22 when calculating draught area, and the draught area that calculates that can be very accurate does not need the cooperation of experiment, reduces development cycle and work load, has reduced the final opening angle value error value of valve block 2.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (14)

1. A smart valve, comprising:

the air-conditioning valve comprises a valve body (1), wherein an air duct (11) is arranged on the valve body (1);

the valve plate (2) is arranged along the section of the air duct (11) in a sliding manner and can cut off the air duct (11); and

and the driving system (3) is connected with the valve body (1) and the valve plate (2) and controls the valve plate (2) to slide to a preset position from the outside of the air duct (11) to the inside of the air duct (11) in a reciprocating manner along the intercepting surface.

2. The intelligent valve according to claim 1, wherein the inner wall of the air duct (11) is further provided with a valve sheet groove (12) for accommodating the sliding of the valve sheet (2).

3. The intelligent valve according to claim 1, wherein the valve plate (2) comprises a first valve plate (21) and a second valve plate (22), the first valve plate (21) and the second valve plate (22) are oppositely opened and closed, the sliding directions are opposite, and when the first valve plate (21) and the second valve plate (22) are closed, the valve plate (2) cuts off the air duct (11).

4. A smart valve according to claim 3 wherein the closed ends of the first valve plate (21) and the second valve plate (22) are provided with correspondingly arranged sealing members (23).

5. The intelligent valve according to claim 3, wherein the first valve plate (21) body and the second valve plate (22) body are both in a semi-circular sheet structure, a rotating shaft hole (24) is formed in the same side, the driving system (3) is connected with the rotating shaft hole (24), and can control the first valve plate (21) and the second valve plate (22) to axially rotate and slide along the rotating shaft hole (24) and open and close to a preset opening and closing angle.

6. The intelligent valve according to claim 5, wherein the driving system (3) comprises a rotating shaft (31), a transmission member (32), a motor (33) and a control box (34), the rotating shaft (31) is fixedly arranged in the rotating shaft hole (24), one end of the rotating shaft is connected with the motor (33) through the transmission member (32), and the control box (34) can receive an external command and send the external command to the motor (33), so that the working state of the motor (33) is controlled.

7. The intelligent valve according to claim 6, further comprising a motor support (35) and a motor cover (36), wherein one end of the motor support (35) is fixedly connected with the valve body (1), the other end of the motor support is fixedly used for supporting the motor (33), and the motor cover (36) covers the motor (33) and the motor support (35).

8. A smart valve according to claim 6, wherein the motor (33) is a gearmotor with a braking system.

9. The intelligent valve according to any one of claims 1 to 8, wherein a temperature sensor (13) and an alarm device (14) for monitoring the temperature in the air duct (11) are further arranged on the valve body (1), the temperature sensor (13) is connected with the driving system (3), and when the temperature sensor (13) detects that the temperature in the air duct (11) exceeds a preset value, the driving system (3) controls the valve plate (2) to block the air duct (11), and the alarm device (14) is triggered to give an alarm.

10. The intelligent valve according to claim 9, further comprising a power-off protection system, wherein when the temperature in the air duct (11) exceeds a preset value and the valve plate (2) cuts off the air duct (11), the power-off protection system cuts off the power supply of the driving system (3).

11. The intelligent valve according to claim 1, further comprising a mounting seat (16), wherein the mounting seat (16) is disposed at the air outlet end of the air duct (11), and comprises a fixing sleeve (161) and an external connection plate (162), the fixing sleeve (161) is sleeved on the outer wall of the air outlet end of the air duct (11), the inner end of the fixing sleeve is connected with the external connection plate (162), and the outer end of the fixing sleeve is provided with a convex elastic hook (1611).

12. The smart valve as recited in claim 11, wherein a sol groove (1612) is further formed in an outer wall of the fixing sleeve (161), and a through hole (1613) communicated with an inner wall of the fixing sleeve (161) is further formed in the sol groove (1612).

13. A centralized smoke exhaust system comprises an outdoor host (40), a public flue (50), an indoor flue (60) and a terminal (70) which are sequentially communicated, and is characterized by further comprising the intelligent valve of any one of claims 1 to 12, wherein the public flue (50) and the indoor flue (60) are communicated through the intelligent valve, and the outdoor host (40) and the terminal (70) are respectively provided with an operation device for controlling the driving system (3).

14. The centralized smoke evacuation system of claim 13, wherein a power socket (17) for supplying power to the terminal (70) is fixedly arranged at one end of the intelligent valve.

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