High-temperature-resistant electric combined air valve

Abstract

The utility model provides a high temperature resistant electric combined air valve, which relates to the technical field of air valves, and comprises a shell and a combined air valve mechanism, the two ends of the shell are fixedly connected with connecting rods, the combined air valve mechanism is arranged on the outer side of the shell, and the combined air valve mechanism comprises a wind power control assembly, an air inlet pipe, an air inlet control assembly and an exhaust pipe. A wind power control assembly is arranged in the shell, an air inlet pipe is arranged on one side of the shell, through the arrangement of the wind power control assembly, during use, through the arrangement of a transmission assembly, power of a motor can be transmitted to a fan rotating shaft through the transmission assembly, so that fan blades are driven to rotate, and through the arrangement of a steel belt made of 20MnSi40Mn, the fan blades can be driven to rotate; the air inlet control assembly can effectively bear the high temperature generated during fire, the fan can still rotate when the fire breaks out and the high temperature occurs, and then the mechanism can suck air in the reverse direction when the fire breaks out indoors, balance the pressure of the air inlet control assembly and reduce the resistance when the assembly is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of air valves, in particular to a high temperature resistant electric combined air valve. Background Art

[0002] The air valve is an important component of the tunnel axial flow fan ventilation system. It plays the role of opening and closing the ventilation path. In case of fire, it plays a role of smoke exhaust when it is open, and plays a role of smoke isolation and fire prevention when it is closed. It plays an important role in extending the service life of the fan system.

[0003] After searching, the patent number "CN212318929U" mentioned in the copy "an adjustable combined air valve for tunnel ventilation, including an air valve actuator, a rocker and an action rod assembly, etc., by adjusting the action amplitude of the air valve body by the action rod assembly, the opening and closing degree of the combined air valve can be steplessly controlled, and the output air volume of the axial flow fan can be changed, thereby realizing the switching adjustment of the ventilation volume under the recent working conditions and the long-term working conditions. The external PLC controller can collect the 4-20 mA valve position feedback signal output by the air valve actuator to judge the opening and closing degree of the air valve and the output air volume of the fan. Only the soft starter needs to be used to control the start and stop of the axial flow fan. Combined with the opening and closing degree of the combined air valve, it is possible to ensure that the axial flow fan operates stably within the air volume range required for the recent and long-term working conditions. In this way, the axial flow fan can adjust the air volume without the need for a frequency converter, thereby replacing the frequency converter with a high failure rate with a soft starter and an adjustable combined air valve with a stable working state. The valve body of the device is perpendicular to the air inlet direction in the closed state and parallel to the air inlet direction in the open state. When a fire occurs indoors and the high temperature causes excessive pressure, the device is difficult to close, and the fire may be aggravated by the ventilation duct acting as a chimney.

[0004] Therefore, we provide a high temperature resistant electric combined air valve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high temperature resistant electric combined air valve to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high temperature resistant electric combined air valve, comprising a shell and a combined air valve mechanism, connecting rods are fixedly connected to both ends of the shell, and a combined air valve mechanism is arranged on the outer side of the shell;

[0007] The combined air valve mechanism includes a wind control component, an air inlet pipe, an air inlet control component and an exhaust pipe. The wind control component is arranged inside the shell, the air inlet pipe is arranged on one side of the shell, the air inlet control component is arranged at the front end of the air inlet pipe, and the exhaust pipe is arranged at the rear end of the shell.

[0008] Preferably, the wind control component includes a fan shaft, fan blades, a transmission component and a motor, the middle section of the connecting rod is rotatably connected to the fan shaft, one end of the fan shaft is fixedly connected to the fan blades, the front end of the fan shaft is provided with a transmission component, and one end of the transmission component is provided with a motor.

[0009] Preferably, the transmission assembly includes a driven wheel, a driving wheel and a steel belt, the front end of the fan shaft is fixedly connected to the driven wheel, the shaft of the motor is fixedly connected to the driving wheel, and a steel belt is provided between the driven wheel and the driving wheel.

[0010] Preferably, the air inlet pipe includes a front pipe and a U-shaped pipe, the front end of the shell is fixedly connected to the front pipe, and the front end of the front pipe is fixedly connected to the U-shaped pipe.

[0011] Preferably, the steel belt is made of 20MnSi40Mn, and a steel belt opening is opened on one side of the front tube.

[0012] Preferably, the steel belt openings are provided with two, and the air inlet control components are provided with two.

[0013] Preferably, the air inlet control component includes an outer frame, fixed fan blades, a rear protective shell, an inner motor and rotating fan blades. The inner wall of the U-shaped tube is fixedly connected to the outer frame, the inner side of the outer frame is fixedly connected to the fixed fan blades, the rear end of the fixed fan blades is fixedly connected to the rear protective shell, the inner side of the rear protective shell is provided with an inner motor, and the rotating shaft of the inner motor is fixedly connected to the rotating fan blades.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Through the setting of the wind control component, when in use, through the setting of the transmission component, the power of the motor can be transmitted to the fan shaft through the transmission component, thereby driving the fan blades to rotate, and the setting of the steel belt material as 20MnSi40Mn allows the device to effectively withstand the high temperature generated during a fire, so that the fan can still rotate at the high temperature of a fire, and then the mechanism can reversely draw air when a fire occurs indoors, balance the pressure of the air inlet control component, and reduce the resistance when the component is closed.

[0016] By setting the air inlet control component, when in use, through the setting of the rear protective shell, the rear protective shell and the fixed fan blades jointly protect the internal motor from high temperature and other direct impacts, ensuring that the internal motor can drive the rotating fan blades to rotate, overlap with the gap of the fixed fan blades to close the device, and prevent external gas from entering the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall rear view structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the wind control assembly structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the air inlet control assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation position of the housing of the utility model;

[0022] Figure 6 It is an operation flow chart of the utility model.

[0023] Numbers in the figure: 1, outer shell; 11, connecting rod; 2, combined air valve mechanism; 21, wind control component; 211, fan shaft; 212, fan blades; 213, transmission component; 2131, driven wheel; 2132, driving wheel; 2133, steel belt; 214, motor; 22, air inlet pipe; 221, front pipe; 2211, steel belt mouth; 222, U-shaped pipe; 23, air inlet control component; 231, outer frame; 232, fixed fan blades; 233, rear protective shell; 234, inner motor; 235, rotating fan blades; 24, exhaust pipe. DETAILED DESCRIPTION

[0024] 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. Example

[0025] See also Figure 1-3 As shown, the utility model provides a technical solution: a high temperature resistant electric combined air valve, comprising a shell 1 and a combined air valve mechanism 2, the two ends of the shell 1 are fixedly connected with connecting rods 11, and the outer side of the shell 1 is provided with a combined air valve mechanism 2;

[0026] The combined air valve mechanism 2 includes a wind control component 21, an air inlet pipe 22, an air inlet control component 23 and an exhaust pipe 24. The wind control component 21 is arranged inside the outer shell 1, the air inlet pipe 22 is arranged on one side of the outer shell 1, the air inlet control component 23 is arranged at the front end of the air inlet pipe 22, and the exhaust pipe 24 is arranged at the rear end of the outer shell 1.

[0027] Furthermore, the wind control component 21 includes a fan shaft 211, fan blades 212, a transmission component 213 and a motor 214. The middle section of the connecting rod 11 is rotatably connected to the fan shaft 211, one end of the fan shaft 211 is fixedly connected to the fan blades 212, the front end of the fan shaft 211 is provided with a transmission component 213, and one end of the transmission component 213 is provided with a motor 214. Through the setting of the wind control component 21, the mechanism can create reverse wind in the event of a fire, maintain the pressure balance of the air inlet control component 23, and facilitate the closing of the air inlet control component 23.

[0028] Furthermore, the transmission assembly 213 includes a driven wheel 2131, a driving wheel 2132 and a steel belt 2133. The front end of the fan shaft 211 is fixedly connected to the driven wheel 2131, the shaft of the motor 214 is fixedly connected to the driving wheel 2132, and a steel belt 2133 is arranged between the driven wheel 2131 and the driving wheel 2132. The arrangement of the transmission assembly 213 enables the torque of the motor 214 to be transmitted to the fan shaft 211.

[0029] Furthermore, the air inlet pipe 22 includes a front pipe 221 and a U-shaped pipe 222. The front end of the shell 1 is fixedly connected to the front pipe 221, and the front end of the front pipe 221 is fixedly connected to the U-shaped pipe 222. Through the setting of the U-shaped pipe 222, the device can have two air inlets at the same time, so that the indoor air can be updated faster during normal use.

[0030] Furthermore, the material of the steel belt 2133 is 20MnSi40Mn, and a steel belt opening 2211 is opened on one side of the front pipe 221. By setting the steel belt 2133 to be made of 20MnSi40Mn, the mechanism can be used in a high temperature state.

[0031] Furthermore, two steel belt openings 2211 are provided, and two air inlet control components 23 are provided. By installing two air inlet control components 23, the mechanism can control two air inlets at the same time. Example

[0032] See also Figure 4 As shown, compared with Example 1, as another implementation of the utility model, the air inlet control component 23 includes an outer frame 231, fixed blades 232, a rear protective shell 233, an inner motor 234 and rotating blades 235, the inner wall of the U-shaped tube 222 is fixedly connected to the outer frame 231, the inner side of the outer frame 231 is fixedly connected to the fixed blades 232, the rear end of the fixed blades 232 is fixedly connected to the rear protective shell 233, the inner side of the rear protective shell 233 is provided with an inner motor 234, and the rotating shaft of the inner motor 234 is fixedly connected to the rotating blades 235. Through the setting of the air inlet control component 23, the device can limit the size of the airflow entering the ventilation duct.

[0033] Working principle, first, a high temperature resistant electric combination damper is moved to the working position, the first step, in the normal working state, the internal motor 234 drives the rotating blades 235 to overlap with the fixed blades 232, the second step, the motor 214 drives the fan shaft 211 to rotate clockwise through the transmission component 213, and cooperates with the axial flow motor to draw air into the pipeline, the third step, the indoor air passes through the equipment and the axial flow motor into the ventilation duct, the fourth step, when the indoor fire occurs in a high temperature and high pressure state, the axial flow motor stops working, the motor 214 drives the fan shaft 211 to rotate counterclockwise through the transmission component 213, and sends the ventilation duct air into the air inlet control component 23 to balance the air pressure at the air inlet control component 23, the fifth step, the internal motor 234 drives the rotating blades 235 to overlap with the gaps of the fixed blades 232, so that the fire room is isolated from the ventilation duct to avoid the chimney effect that causes the fire to increase, thus completing the use process of a high temperature resistant electric combination damper.

Claims

1. A high temperature resistant electric combined air valve, comprising a housing (1) and a combined air valve mechanism (2), characterized in that: Connecting rods (11) are fixedly connected to both ends of the shell (1), and a combined air valve mechanism (2) is arranged on the outside of the shell (1); The combined air valve mechanism (2) comprises a wind force control component (21), an air inlet pipe (22), an air intake control component (23) and an exhaust pipe (24); the wind force control component (21) is arranged inside the housing (1); the air inlet pipe (22) is arranged on one side of the housing (1); the air intake control component (23) is arranged at the front end of the air inlet pipe (22); and the exhaust pipe (24) is arranged at the rear end of the housing (1).

2. A high temperature resistant electric combined air valve according to claim 1, characterized in that: The wind force control component (21) comprises a fan shaft (211), a fan blade (212), a transmission component (213) and a motor (214); the middle section of the connecting rod (11) is rotatably connected to the fan shaft (211); one end of the fan shaft (211) is fixedly connected to the fan blade (212); the front end of the fan shaft (211) is provided with a transmission component (213); one end of the transmission component (213) is provided with a motor (214); (213) comprises a driven wheel (2131), a driving wheel (2132) and a steel belt (2133); the front end of the fan shaft (211) is fixedly connected to the driven wheel (2131); the shaft of the motor (214) is fixedly connected to the driving wheel (2132); a steel belt (2133) is arranged between the driven wheel (2131) and the driving wheel (2132); the air inlet pipe (22) comprises a front pipe (221) and a U-shaped pipe (222); the housing (1) The front end is fixedly connected to a front tube (221), the front end of the front tube (221) is fixedly connected to a U-shaped tube (222), the material of the steel belt (2133) is 20MnSi40Mn, one side of the front tube (221) is provided with a steel belt opening (2211), two steel belt openings (2211) are provided, two air inlet control components (23) are provided, and the air inlet control components (23) include an outer frame (231), fixed fan blades (232), and a rear protective The U-shaped tube (222) is provided with a housing (233), an inner motor (234) and a rotating blade (235), the inner wall of the U-shaped tube (222) is fixedly connected to an outer frame (231), the inner side of the outer frame (231) is fixedly connected to a fixed blade (232), the rear end of the fixed blade (232) is fixedly connected to a rear protective shell (233), the inner side of the rear protective shell (233) is provided with an inner motor (234), and the rotating shaft of the inner motor (234) is fixedly connected to the rotating blade (235).

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