CN114251765A

CN114251765A - Multifunctional exhaust device

Info

Publication number: CN114251765A
Application number: CN202111631712.XA
Authority: CN
Inventors: 王有权; 焦晶晶
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-03-29

Abstract

The invention provides a multifunctional exhaust device, and relates to the field of exhaust devices. A multi-functional exhaust device includes: the anti-explosion motor is provided with an anti-explosion box, a power supply control mechanism is arranged in the anti-explosion box, and a detector is arranged at one end of the anti-explosion motor, which is far away from the output end; it can integrate current split type exhaust fan, reduces whole volume, and the installation is simple, especially in the less environment in spaces such as the storehouse of small area, kitchen, explosion-proof cabinet, can leak automatic airing exhaust, prevents the emergence of accidents such as explosion, personnel's poisoning, stifling.

Description

Multifunctional exhaust device

Technical Field

The invention relates to the technical field of air exhaust devices, in particular to a multifunctional air exhaust device.

Background

The exhaust device achieves the ventilation effect through indoor or outdoor exhaust, and through specific engineering design and the design of ventilation speed and wind speed according to needs, combustible gas, toxic gas and asphyxiating gas can be rapidly exhausted indoors, so that the effect of protecting the air safety and reliability of the area is achieved.

The gas detection alarm is also called a gas leakage detection alarm instrument. When combustible gas leaks in industrial environment and daily life environment (such as a kitchen using natural gas), and the gas alarm detects that the concentration of the combustible gas reaches an alarm value set by the alarm, the combustible gas alarm can send out sound and light alarm signals to remind people to evacuate, forcibly exhaust, shut down equipment and other safety measures. And the gas alarm can be linked with related linkage equipment, such as leakage in factory production, storage and transportation, and can drive systems such as air exhaust, power supply cut-off, spraying and the like, so that explosion, fire and poisoning accidents are prevented, and safety production is guaranteed. It is often used in places where flammable gases are used or generated in chemical plants, oil, gas stations, steel plants, etc.

The existing exhaust device is split in combination with a gas alarm, is not easy to install in a narrow space, and only needs to install a fan in a small area, so that a multi-point alarm control system is configured, resources are seriously wasted, the exhaust device cannot be installed in a small explosion-proof cabinet, a control box needs to be installed when the exhaust device is installed alone, the occupied space is saved, and the installation engineering amount is increased.

Disclosure of Invention

The invention aims to provide a multifunctional exhaust device which can integrate the existing split type exhaust fan, reduce the whole volume, is simple to install, is particularly convenient to install in small-area environments such as storehouses, kitchens, explosion-proof cabinets and the like with small space, can automatically exhaust air in a leakage manner, and can prevent accidents such as explosion, personnel poisoning, suffocation and the like.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a multi-functional exhaust device, it includes explosion proof machine, exhaust fan and ventilation pipe, the exhaust fan is installed explosion proof machine's output, explosion proof machine installs in the ventilation pipe, the last explosion proof box that is provided with of explosion proof machine, the inside of explosion proof box is provided with power control mechanism, explosion proof machine keeps away from one of output and serves and be provided with the detector.

When the invention is used, the invention is firstly installed at the position on the roof or the wall, then the power supply is connected, and the detector can be selected to be used for detecting smoke concentration, toxic gas concentration, combustible gas concentration and other different purposes according to different installation environments; in the standby process of the invention, when the detector detects that the corresponding gas concentration exceeds the threshold value, the detector sends a signal to a power supply control mechanism in an explosion-proof box on the explosion-proof motor, and the power supply control mechanism starts a motor switch in time so as to rotate an exhaust fan to exhaust air, thereby preventing accidents such as explosion, personnel poisoning, suffocation and the like.

The control box and the detector are integrated on the explosion-proof motor, the exhaust device can be applied to various different use scenes by replacing the detector, the problems that the existing exhaust device is not easy to install in a narrow space, for example, the existing exhaust device cannot be installed in a small explosion-proof cabinet, the control box needs to be installed when the exhaust device is installed alone, the occupied space is occupied, and the installation work amount is increased are solved, and the exhaust device can also perform leakage automatic exhaust to prevent accidents such as explosion, personnel poisoning, suffocation and the like.

In some embodiments of the present invention, the detector includes a housing, a mounting seat, and a sensor disposed in the mounting seat, the mounting seat is connected to the explosion-proof motor, a detector circuit board is disposed in the mounting seat, and the detector circuit board is connected to the power control mechanism. The mounting seat is fixedly connected or detachably connected to the explosion-proof motor; the sensor is detachably connected to the mounting seat, so that the sensor is convenient to replace in the later period; the detector circuit board in the mounting seat is used for sending signals of the sensor to the power supply control mechanism, and the detector circuit board is in the prior art and is not described herein again; the shell is used for protecting mount pad and sensor, and the cover can be dismantled to the shell and establish on the mount pad, takes off the shell when making things convenient for the later stage to change the sensor.

In some embodiments of the present invention, the housing is provided with a vent hole corresponding to the sensor. The top of shell or set up the bleeder vent all around, can make in the external gas gets into the shell, the sensor of being convenient for surveys.

In some embodiments of the present invention, the sensor is one of an oxygen concentration sensor, a toxic gas concentration sensor, and a combustible gas concentration sensor. The use scenes of the air exhaust device are different, and the functions of the required sensors are also different. If the exhaust device is installed in a kitchen or the like using liquefied petroleum gas and natural gas, a combustible gas concentration sensor is needed; if exhaust device installs when places such as warehouse, factory building, needs to use poisonous gas concentration sensor or combustible gas concentration sensor or oxygen concentration sensor, also can carry out the adaptability to the sensor at different periods and change. Different sensors have different purposes, the invention does not need to produce multiple types for corresponding, only needs to replace the corresponding sensors, is convenient for users to install and saves resources.

In some embodiments of the present invention, the power control mechanism includes a transformer, a motor junction box, and a relay, wherein the transformer is connected to an external power source, and the relay is connected to the transformer through the motor junction box. The external power supply of the explosion-proof motor is 220V, the transformer transmits voltage to the motor junction box after the voltage is changed into 24V, the motor junction box is connected with the relay, the other end of the relay is connected with the detector circuit board, when the relay circuit board uploads an incoming call signal, the relay is connected with a loop, the explosion-proof motor starts to work, and when the relay circuit board does not have a signal, the relay is disconnected with the loop, and the explosion-proof motor stops working. The motor junction box is the prior art, and the structure thereof is not described in detail herein.

In some embodiments of the invention, a fuse is connected in series between the relay and the motor junction box. When the armature of the relay is closed, the circuit is prevented from being damaged due to overlarge current, and therefore, a fuse is arranged.

In some embodiments of the invention, a heat insulation pad is arranged between the detector and the explosion-proof motor. The explosion-proof motor can inevitably produce heat during operation, and in order to prevent the heat from being conducted to the detector through the shell and damaging the detector, a heat insulation pad is arranged between the detector and the explosion-proof motor to prevent the occurrence of the condition.

In some embodiments of the present invention, the explosion-proof box includes a box cover, an outer box body and an inner box body, the box cover and the outer box body are connected by a bolt, and the inner box body is disposed inside the outer box body. The explosion-proof box is used for isolating equipment which can generate electric sparks from the external environment. The external environment is mainly air, dust or liquid medium. The air and dust environment is in the atmospheric environment, and the main means is that the interior of the equipment is isolated from the external atmosphere (explosive dust, explosive gas and the like may exist in the atmosphere), so that the purpose of explosion prevention is achieved; the integrated medium environment is mainly sealed, and some devices are made to be waterproof by bearing high pressure. Explosive gas: petrochemical, hydrogen production, oxygen production, etc. may leak flammable and explosive gases. Such as motor junction boxes, relays, etc., may produce electrical sparks.

In some embodiments of the present invention, the inner case is provided with a through-tube, and the through-tube passes through the outer case and is connected to the detector. The lead wire tube is used for protecting a sensing signal wire which is connected with the relay and the detector circuit board.

In some embodiments of the present invention, an insulating layer is disposed between the inner container and the outer container. The box body is arranged into two layers, and the insulating layers are arranged between the two layers at intervals, so that the interference of an external electromagnetic environment to the inside of the motor junction box can be prevented.

In some embodiments of the invention, the ventilation pipe is provided with a plurality of sections, and the ventilation pipe is connected end to end and extends into the exhaust area. The edge of the ventilating pipe can be made into flange turning, seaming seam or rivet seam, which is convenient for later connection.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic overall structural diagram of an explosion-proof motor of a multifunctional exhaust device provided in an embodiment of the present invention;

fig. 2 is a front view of an explosion-proof motor of a multifunctional exhaust device according to an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of a multifunctional exhaust device according to an embodiment of the present invention.

Icon: 1. an explosion-proof motor; 2. an exhaust fan; 3. a vent pipe; 4. an explosion-proof box; 5. a detector; 6. air holes are formed; 7. a through pipe; 8. a heat insulating pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

The embodiment provides a multifunctional exhaust device, as shown in fig. 1-3, which includes an explosion-proof motor 1, an exhaust fan 2 and a ventilation pipe 3, wherein the exhaust fan 2 is installed at an output end of the explosion-proof motor 1, the explosion-proof motor 1 is installed in the ventilation pipe 3, an explosion-proof box 4 is arranged on the explosion-proof motor 1, a power supply control mechanism is arranged inside the explosion-proof box 4, and a detector 5 is arranged at one end of the explosion-proof motor 1, which is far away from the output end.

When the invention is used, the invention is firstly installed at the position on the roof or the wall, then the power supply is connected, and the detector 5 can be selected to be used as the detector 5 for detecting smoke concentration, toxic gas concentration, combustible gas concentration and other different purposes according to different installation environments; in the standby process of the invention, when the detector 5 detects that the corresponding gas concentration exceeds the threshold value, a signal is sent to the power supply control mechanism in the explosion-proof box 4 on the explosion-proof motor 1, the power supply control mechanism starts the motor switch in time, and then the exhaust fan 2 is rotated to exhaust air, thereby preventing accidents such as explosion, personnel poisoning, suffocation and the like.

The control box and the detector 5 are integrated on the explosion-proof motor 1, the invention can be applied to various different use scenes by replacing the detector 5, the problems that the existing exhaust device is not easy to install in a narrow space, for example, the existing exhaust device cannot be installed in a small explosion-proof cabinet, the control box needs to be installed when the existing exhaust device is installed alone, the occupied space is occupied, and the installation work amount is increased are solved, and the problems of explosion, personnel poisoning, suffocation and the like can be prevented by carrying out leakage automatic exhaust.

Example 2

This embodiment provides a multifunctional exhaust device, which is basically the same as embodiment 1, and the main difference between them is: the detector 5 comprises a shell, a mounting seat and a sensor arranged in the mounting seat, the mounting seat is connected with the explosion-proof motor 1, a circuit board of the detector 5 is arranged in the mounting seat, and the circuit board of the detector 5 is connected with the power supply control mechanism. The mounting seat is fixedly connected or detachably connected to the explosion-proof motor 1; the sensor is detachably connected to the mounting seat, so that the sensor is convenient to replace in the later period; a circuit board of the detector 5 in the mounting seat is used for sending signals of the sensor to the power supply control mechanism, and the circuit board of the detector 5 is the prior art and is not described again; the shell is used for protecting mount pad and sensor, and the cover can be dismantled to the shell and establish on the mount pad, takes off the shell when making things convenient for the later stage to change the sensor.

Further, the shell is provided with an air hole 6 corresponding to the sensor. The top or the periphery of the shell is provided with the air holes 6, so that the external air can enter the shell, and the sensor can conveniently detect.

Example 3

This embodiment provides a multifunctional exhaust device, which is substantially the same as embodiment 1 or embodiment 2, and the main difference between them is that: the sensor is one of an oxygen concentration sensor, a toxic gas concentration sensor and a combustible gas concentration sensor. The use scenes of the air exhaust device are different, and the functions of the required sensors are also different. If the exhaust device is installed in a kitchen using liquefied petroleum gas or natural gas and the like, a combustible gas concentration sensor is needed; if exhaust device installs when places such as warehouse, factory building, needs to use poisonous gas concentration sensor or combustible gas concentration sensor or oxygen concentration sensor, also can carry out the adaptability to the sensor at different periods and change. Different sensors have different purposes, the invention does not need to produce multiple types for corresponding, only needs to replace the corresponding sensors, is convenient for users to install and saves resources.

Example 4

This embodiment provides a multifunctional exhaust device, which is substantially the same as any of embodiments 1 to 3, and the main difference between them is that: the power supply control mechanism comprises a transformer, a motor junction box and a relay, the transformer is connected with an external power supply, and the relay is connected with the transformer through the motor junction box. The external power supply of the explosion-proof motor 1 is 220V, the transformer converts the voltage into 24V and transmits the voltage to the motor junction box, the motor junction box is connected with the relay, the other end of the relay is connected with the circuit board of the detector 5, when the relay circuit board uploads an incoming call signal, the relay is connected with a loop, the explosion-proof motor 1 starts to work, and when no signal of the relay circuit board is, the relay is disconnected with the loop, and the explosion-proof motor 1 stops working. The motor junction box is the prior art, and the structure thereof is not described in detail herein.

Further, a fuse is connected in series between the relay and the motor junction box. When the armature of the relay is closed, the circuit is prevented from being damaged due to overlarge current, and therefore, a fuse is arranged.

Further, a heat insulation pad 8 is arranged between the detector 5 and the explosion-proof motor 1. The explosion-proof motor 1 inevitably generates heat during operation, and in order to prevent the heat from being conducted to the detector 5 through the shell to damage the detector 5, a heat insulation pad 8 is arranged between the detector 5 and the explosion-proof motor 1 to prevent the heat from being generated.

Example 5

This embodiment provides a multifunctional exhaust device, as shown in fig. 1-2, which is substantially the same as any of embodiments 1-4, and the main difference between them is: the explosion-proof box 4 comprises a box cover, an outer box body and an inner box body, wherein the box cover is connected with the outer box body through a bolt, and the inner box body is arranged inside the outer box body. The explosion-proof box 4 is the principle that the equipment which can generate electric sparks is isolated from the external environment. The external environment is mainly air, dust or liquid medium. The air and dust environment is in the atmospheric environment, and the main means is that the interior of the equipment is isolated from the external atmosphere (explosive dust, explosive gas and the like may exist in the atmosphere), so that the purpose of explosion prevention is achieved; the integrated medium environment is mainly sealed, and some devices are made to be waterproof by bearing high pressure. Explosive gas: petrochemical, hydrogen production, oxygen production, etc. may leak flammable and explosive gases. Such as motor junction boxes, relays, etc., may produce electrical sparks.

Furthermore, the inner box body is provided with a through pipe 7, and the through pipe 7 penetrates through the outer box body to be connected with the detector 5. The through-wire tube 7 is used for protecting a sensing signal wire connecting the relay and a circuit board of the detector 5. The vent pipe 7 can be made of soft materials, and can also be made of hard materials such as stainless steel. The mounting seat of the detector 5 is detachably connected with the through line pipe 7. And in the later stage, when the sensor is replaced, the shell is taken down, so that the connection between the vent pipe 7 and the mounting seat is not influenced.

Furthermore, an insulating layer is arranged between the inner box body and the outer box body. The box body is arranged into two layers, and the insulating layers are arranged between the two layers at intervals, so that the interference of an external electromagnetic environment to the inside of the motor junction box can be prevented. The insulating layer can use foam insulating layer or silica gel insulating layer, and the insulating layer has thermal-insulated function concurrently, can completely cut off the heat that explosion-proof machine 1 produced, avoids the inside electrical components of explosion-proof box 4 impaired.

Furthermore, the ventilating pipe 3 is provided with a plurality of sections, and the plurality of sections of ventilating pipes 3 are connected end to end and extend into an exhaust area. The edge of the ventilation pipe 3 can be made into flange turning, seaming seam or rivet seam, which is convenient for later connection.

In summary, the embodiment of the present invention provides a multifunctional exhaust device, which at least has the following advantages or beneficial effects:

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multifunctional exhaust device, its characterized in that, includes explosion proof machine, exhaust fan and ventilation pipe, the exhaust fan is installed explosion proof machine's output, explosion proof machine installs in the ventilation pipe, the last explosion proof box that is provided with of explosion proof machine, the inside of explosion proof box is provided with power control mechanism, explosion proof machine keeps away from one of output and serves and be provided with the detector.

2. The multifunctional exhaust device according to claim 1, wherein the detector comprises a housing, a mounting seat and a sensor arranged in the mounting seat, the mounting seat is connected with the explosion-proof motor, a detector circuit board is arranged in the mounting seat, and the detector circuit board is connected with the power supply control mechanism.

3. The multifunctional exhaust device according to claim 2, wherein a vent is provided on the housing corresponding to the sensor.

4. A multi-functional air exhaust device according to claim 2 or 3 wherein the sensor is a smoke concentration sensor, an oxygen concentration sensor, a toxic gas concentration sensor or a combustible gas concentration sensor.

5. The multifunctional exhaust device according to claim 1 or 2, wherein the power control mechanism comprises a transformer, a motor junction box and a relay, the transformer is connected with an external power source, and the relay is connected with the transformer through the motor junction box.

6. The multifunctional exhaust device according to claim 5, wherein a fuse is connected in series between the relay and the motor junction box.

7. The multifunctional exhaust device according to claim 1, wherein a heat insulation pad is disposed between the detector and the explosion-proof motor.

8. The multifunctional exhaust device according to claim 1, wherein the explosion-proof box comprises a box cover, an outer box body and an inner box body, the box cover and the outer box body are connected through bolts, and the inner box body is arranged inside the outer box body.

9. The multifunctional exhaust device according to claim 8, wherein the inner casing is provided with a through pipe, and the through pipe passes through the outer casing and is connected with the detector.

10. The multifunctional exhaust device according to claim 8, wherein an insulating layer is disposed between the inner case and the outer case.