CN215519570U - Roof heat preservation ventilation unit for engineering design - Google Patents

Abstract

The utility model discloses a roof heat preservation and ventilation device for engineering design, which comprises a top cover, a shell, a motor protection shell and a fixing plate, wherein the bottom end of the top cover is provided with the shell, the motor protection shell is arranged inside the top cover, a motor is arranged inside the motor protection shell, the output end of the motor is connected with a rotating rod, the tail end of the rotating rod is connected with a fan blade, a silencing interlayer is arranged inside the shell, an air inlet hopper is arranged inside the shell, the bottom end of the air inlet hopper is connected with an air guide pipe, the bottom end of the air guide pipe is connected with an exhaust hopper, an active carbon adsorption layer is arranged inside the shell, and the bottom end of the active carbon adsorption layer is connected with a filter screen. The air guide pipe, the water heat pipe, the ion generator, the activated carbon adsorption layer, the transformer and the noise reduction interlayer are arranged, so that the ventilation noise of a building can be reduced, pollutants are prevented from entering a room, the indoor cooling is prevented from being influenced by ventilation, and the use experience and the practicability of the device are improved.

Description

Roof heat preservation ventilation unit for engineering design

Technical Field

The utility model relates to the technical field of roof ventilation devices, in particular to a roof heat-preservation ventilation device for engineering design.

Background

Along with the continuous acceleration of the urbanization process of the modern society, the living environment of a city becomes tense gradually, a large number of migratory population enters the city to be waited for work, ask for study and business, so a large number of population are often gathered in a single building, if the indoor is closed at the moment, carbon dioxide generated by human metabolism can be accumulated continuously, and the carbon dioxide can not drive human cells to carry out aerobic respiration, so that people can feel the problems of dizziness, nausea, insufficient blood supply and the like in the environment with overproof carbon dioxide concentration for a long time, and even endanger life in severe cases, so how to ensure the continuous circulation of air in the building is the key point in engineering design.

1. The existing roof ventilation device directly conveys the outside air to the indoor, if the temperature difference between the inside of the building and the outside environment is large at the moment, the temperature inside the building is reduced, and then symptoms such as cold, fever, rhinorrhea and the like are caused, and the use experience of the device is influenced.

2. The existing roof ventilation device is provided with a high-power fan frequently used, so that gas exchange is carried out inside and outside a building, air collides with the device due to the fact that the air flow rate is too fast, the aerodynamic noise influence environment is formed, and the use experience and the practicability of the device are influenced.

3. The existing roof ventilation device is lack of a filtering device, so that when the device works, pollutants and bacteria in the outside air are often brought into the room at the same time, the human health is influenced, and the practicability of the device is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a roof heat preservation and ventilation device for engineering design, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a roof heat preservation and ventilation device for engineering design comprises a top cover, a shell, a motor protection shell and a fixing plate, wherein the bottom end of the top cover is fixedly provided with the shell through a connecting bolt, the motor protection shell is arranged inside the top cover, a motor is arranged inside the motor protection shell, the output end of the motor is connected with a rotating rod, the tail end of the rotating rod extends into the shell, the tail end of the rotating rod is connected with a fan blade, a silencing interlayer is arranged inside the shell and is positioned below the fan blade, an air inlet hopper is arranged inside the shell and is positioned below the silencing interlayer, the bottom end of the air inlet hopper is connected with an air guide pipe, the air guide pipe is downwards spirally arranged along the inside of the shell, the bottom end of the air guide pipe is connected with an exhaust hopper, an active carbon adsorption layer is arranged inside the shell and is positioned below the exhaust hopper, the bottom end of the active carbon adsorption layer is connected with a filter screen.

Preferably, four groups of water heat pipes are embedded in the air guide pipe and arranged in a rhombic right angle.

Preferably, resistance wires are installed inside the water heat pipes.

Preferably, an ion generator is installed inside the air intake hopper.

Preferably, a fixing plate is mounted on the surface of the housing.

Preferably, a bidirectional electromagnetic relay is installed inside the motor protection shell, and the bidirectional electromagnetic relay is electrically connected with the motor.

Preferably, the transformer is arranged inside the motor protection shell and electrically connected with the bidirectional electromagnetic relay.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the air inlet hopper, the air guide pipe, the exhaust hopper, the water heat pipe and the resistance wires are arranged, external air is continuously guided to the lower part along the inner wall of the shell through the continuous rotation of the fan blades, so that the internal pressure of the shell is continuously increased, further, the air in the air inlet hopper flows into the air guide pipe, four groups of water heat pipes are arranged in the air guide pipe, and the resistance wires in the water heat pipe are wound into a large resistance value by adopting a nickel-chromium alloy ring, heat is generated due to an electric heating reaction after the electricity is switched on, the temperature of distilled water in the water heat pipe is increased, further, the heat is conducted to the air passing through the air guide pipe, and the temperature difference generated due to air exchange is balanced, so that the use experience of the device is improved.

2. The utility model is provided with the silencing interlayer and the transformer, when air enters the shell by the driving of the fan blades, the silencing interlayer replaces the inner wall of the shell to collide with the air, the vibration of the inner wall of the shell caused by air impact can be reduced due to the elasticity of the polyester fiber, and the air is discharged through the small holes formed in the silencing interlayer, so that the noise is reduced, when the external air flow velocity is too high, the noise can not be further reduced, the power supply connected with the bidirectional electromagnetic relay can be used for reversing the bidirectional electromagnetic relay, so that the motor, the bidirectional electromagnetic relay, the transformer and the power supply jointly form a closed loop, after the motor is connected with the transformer, the influence of the magnetic induction coil in the transformer reduces the voltage input into the motor, further reduces the rotating speed of the fan blades, thereby reducing the wind speed in the shell, and reduces the impact force of the air and the shell when the wind speed is reduced, the noise can be further reduced, and the practicability and the use experience of the device are improved.

3. According to the utility model, by installing the ion generator and the activated carbon adsorption layer, when air enters the air inlet hopper, the ion generator arranged in the air inlet hopper releases a large amount of ions to adsorb fine dust in the air into larger dust groups after being electrified, so that the dust can be conveniently adsorbed by the subsequent activated carbon adsorption layer, and then the air passes through the activated carbon adsorption layer through the air exhaust hopper due to the downward acting force generated by the air pressure in the shell, and the dust in the air is adsorbed and filtered by the activated carbon adsorption layer and is finally discharged into the building through the filter screen, so that the air entering the building is cleaned, and further the practicability of the device is improved.

Drawings

FIG. 1 is a schematic overall sectional view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a cross-sectional, partial, schematic view of an airway tube of the present invention;

fig. 5 is a schematic structural view of a cut-away part of the motor protection shell of the present invention.

In the figure: 1. a top cover; 2. a housing; 3. a motor protection shell; 4. an electric motor; 5. a rotating rod; 6. a fan blade; 7. a sound-deadening interlayer; 8. an air inlet hopper; 9. an air duct; 10. an exhaust hopper; 11. an activated carbon adsorption layer; 12. filtering with a screen; 13. a water heat pipe; 14. a resistance wire; 15. an ion generator; 16. a fixing plate; 17. a bidirectional electromagnetic relay; 18. a transformer.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1 to 5, an embodiment of the present invention includes: a roof heat preservation and ventilation device for engineering design comprises a top cover 1, a shell 2, a motor protection shell 3 and a fixing plate 16, wherein the shell 2 is fixed at the bottom end of the top cover 1 through a connecting bolt, the top cover 1 prevents rainwater and dust in the external environment from entering the interior of the device from the top, the shell 2 is inserted into the wall surface for fixing and providing an acting point for protecting the side surface of the device when the device is installed, the motor protection shell 3 is installed inside the top cover 1 and provides protection for an internal motor 4 and a transformer 18, rainwater is prevented from entering the interior of the motor 4 through a gap between the top cover 1 and the shell 2 to cause short circuit of the motor 4, the motor 4 is installed inside the motor protection shell 3, the rotating rod 5 is driven to rotate through an electromagnetic effect after being electrified, the output end of the motor 4 is connected with the rotating rod 5, the tail end of the rotating rod 5 extends to the interior of the shell 2, and the kinetic energy generated after the motor 4 is electrified is transmitted to fan blades 6, further driving the fan blades 6 to rotate, the fan blades 6 are connected to the tail end of the rotating rod 5, after the fan blades 6 start to rotate, the surface air flow rate is accelerated, the air on the surfaces of the fan blades 6 is discharged to the lower parts of the fan blades 6, so that negative pressure is formed on the surfaces of the fan blades 6, further, the external air is driven to continuously enter along the gap between the top cover 1 and the shell 2, the silencing interlayer 7 is arranged inside the shell 2, the silencing interlayer 7 is positioned below the fan blades 6, the silencing interlayer 7 is made of polyester fiber materials, countless small holes are formed in the surfaces of the silencing interlayer 7, the external air is driven by the fan blades 6 to enter the shell 2 and then collides with the silencing interlayer 7, vibration of the inner wall of the shell 2 can be reduced due to elasticity of the polyester fiber, the air is discharged through the small holes formed in the silencing interlayer 7, so that noise is reduced, the air inlet hoppers 8 are arranged inside the shell 2, and the air inlet hoppers 8 are positioned below the silencing interlayer 7, air is collected and guided to the inside of an air guide pipe 9 below, the bottom end of an air inlet hopper 8 is connected with an air guide pipe 9, the air guide pipe 9 is spirally downward along the inside of a shell 2, after a power supply is connected, fan blades 6 continuously rotate to continuously guide outside air to the lower part along the inner wall of the shell 2, the pressure inside the shell 2 is continuously increased, further, the air inside the air inlet hopper 8 flows into the air guide pipe 9 and winds downward in the shell 2 along the air guide pipe 9, four groups of water heat pipes 13 are arranged inside the air guide pipe 9, heat is continuously conducted to the air while the air is downward along the air guide pipe 9, the air discharged into the air exhaust hopper 10 is warm, the bottom end of the air guide pipe 9 is connected with an air exhaust hopper 10, the air inside the air guide pipe 9 is guided to the surface of an active carbon adsorption layer 11, an active carbon adsorption layer 11 is arranged inside the shell 2, and the active carbon adsorption layer 11 is positioned below the air exhaust hopper 10, after the air flows out through exhaust funnel 10, under the inside atmospheric pressure effect of casing 2, make the air through activated carbon adsorption layer 11, adsorb the dust in the air and filter, activated carbon adsorption layer 11's bottom is connected with filter screen 12, for activated carbon adsorption layer 11 provides the support, makes the air that passes activated carbon adsorption layer 11 pass through inside filter screen 12 gets into the building.

Furthermore, four groups of water heat pipes 13 are embedded in the air guide pipe 9, the four groups of water heat pipes 13 are arranged in a rhombic right angle mode, and resistance wires 14 inside the electrified water heat pipes 13 generate heat to enable the temperature of distilled water inside the water heat pipes 13 to rise, so that the heat is conducted to air passing through the air guide pipe 9.

Furthermore, the resistance wire 14 is arranged in the hydrothermal tube 13, and the resistance wire 14 is wound by a nichrome ring to form a large resistance value, so that heat is generated due to an electrothermal reaction after the resistance wire is electrified.

Further, the inside of the air inlet hopper 8 is provided with an ion generator 15, and after the air inlet hopper is electrified, the ion generator 15 releases a large amount of ions into the air to adsorb fine dust in the air to form a large dust group, so that the subsequent activated carbon adsorption layer 11 can adsorb the dust conveniently.

Further, a fixing plate 16 is installed on the surface of the housing 2, and when the device is installed, the device is inserted into a hole previously made in a building, the whole device is fastened by the fixing plate 16, and the device is further fixed by a bolt and a nut on the surface of the fixing plate 16.

Further, motor protective housing, 3's internally mounted has two-way electromagnetic relay 17, and two-way electromagnetic relay 17 and motor 4 electric connection, and when external air flow rate was too fast, the accessible was connected two-way electromagnetic relay 17's power, made two-way electromagnetic relay 17 switching-over, made motor 4, two-way electromagnetic relay 17, transformer 18 and power constitute closed circuit jointly.

Further, a transformer 18 is arranged inside the motor protection shell 3, the transformer 18 is electrically connected with the bidirectional electromagnetic relay 17, and after the motor 4 is connected with the transformer 18, the voltage input to the motor 4 is reduced under the influence of a magnetic induction coil inside the transformer 18, so that the rotating speed of the fan blades 6 is reduced, the wind speed is reduced, and the impact force between air and the shell 2 is reduced when the wind speed is reduced, so that the noise can be further reduced.

The working principle is as follows: firstly, the whole device is inserted into a hole which is opened in advance in a building, the whole device is clamped by a fixing plate 16, the device is further fixed by bolts and nuts on the surface of the fixing plate 16 and then connected with a power supply, a motor 4 drives a rotating rod 5 to rotate through an electromagnetic effect, the rotating rod 5 conducts kinetic energy to a fan blade 6 and further drives the fan blade 6 to rotate, after the fan blade 6 starts to rotate, the surface air flow rate is accelerated, air on the surface of the fan blade 6 is discharged to the lower part of the fan blade 6, so that negative pressure is formed on the surface of the fan blade 6, further, external air is driven to continuously enter the inside of a shell 2 along a gap between a top cover 1 and the shell 2, a silencing interlayer 7 is arranged inside the shell 2, the silencing interlayer 7 is made of polyester fiber materials, countless small holes are formed in the surface, and after the external air enters the inside of the shell 2 through the driving of the fan blade 6, the external air collides with the silencing interlayer 7, because the polyester fiber has elasticity, the vibration of the inner wall of the shell 2 can be reduced, and the air is discharged through the small holes formed in the silencing interlayer 7, so that the noise is reduced, if the external air flow velocity is too fast to cause the surge of a large amount of air, so that the noise can not be further reduced, the power supply connected with the two-way electromagnetic relay 17 can be used for reversing the direction of the two-way electromagnetic relay 17, so that the motor 4, the two-way electromagnetic relay 17, the transformer 18 and the power supply jointly form a closed loop, after the motor 4 is connected with the transformer 18, the voltage input into the motor 4 is reduced under the influence of a magnetic induction coil in the transformer 18, so that the rotating speed of the fan blades 6 is reduced, the air speed in the shell 2 is reduced, the impact force of the air and the shell 2 is reduced when the air speed is reduced, the noise can be further reduced, after the air passes through the silencing interlayer 7, the air is converged into the air inlet hopper 8, at the moment, the ion generator 15 arranged in the air inlet hopper 8 is used for reducing the wind speed, after the power is on, a large amount of ions are released into the air to adsorb fine dust in the air to form a large dust group, so that the dust can be conveniently adsorbed by the subsequent activated carbon adsorption layer 11, the fan blades 6 continuously rotate to continuously guide the outside air to the lower part along the inner wall of the shell 2, the pressure inside the shell 2 is continuously increased, the air inside the air inlet hopper 8 flows into the air guide pipe 9, four groups of water heat pipes 13 are arranged inside the air guide pipe 9, the resistance wire 14 inside the water heat pipe 13 is wound into a large resistance value by adopting a nickel-chromium alloy ring, the temperature of distilled water inside the water heat pipe 13 is increased due to the electrothermal reaction after the power is on, the heat is further conducted into the air passing through the air guide pipe 9, the temperature difference generated by ventilation is balanced, and then the air passes through the activated carbon adsorption layer 11 through the exhaust hopper 10 under the action of the air pressure inside the shell 2, and the activated carbon adsorption layer 11, dust in the air is adsorbed and filtered, and finally discharged into the building through the filter screen 12, so that ventilation in the building is completed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A roof heat preservation and ventilation device for engineering design comprises a top cover (1), a shell (2), a motor protection shell (3) and a fixing plate (16), and is characterized in that the bottom end of the top cover (1) is fixedly provided with the shell (2) through a connecting bolt, the motor protection shell (3) is arranged inside the top cover (1), a motor (4) is arranged inside the motor protection shell (3), the output end of the motor (4) is connected with a rotating rod (5), the tail end of the rotating rod (5) extends into the shell (2), the tail end of the rotating rod (5) is connected with fan blades (6), the shell (2) is internally provided with a silencing interlayer (7), the silencing interlayer (7) is positioned below the fan blades (6), the shell (2) is internally provided with an air inlet hopper (8), and the air inlet hopper (8) is positioned below the silencing interlayer (7), the bottom of air inlet fill (8) is connected with air duct (9), and air duct (9) are downward along the inside spiral of casing (2), the bottom of air duct (9) is connected with exhaust fill (10), casing (2) internally mounted has activated carbon adsorption layer (11), and activated carbon adsorption layer (11) are located the below of exhaust fill (10), the bottom of activated carbon adsorption layer (11) is connected with filter screen (12).

2. An engineering design roof insulation ventilation unit according to claim 1, characterized in that: four groups of water heat pipes (13) are embedded in the air guide pipe (9), and the four groups of water heat pipes (13) are arranged in a rhombic right angle mode.

3. An engineering design roof thermal insulation ventilation unit according to claim 2, characterized in that: and a resistance wire (14) is arranged in the water heat pipe (13).

4. An engineering design roof insulation ventilation unit according to claim 1, characterized in that: an ion generator (15) is arranged in the air inlet hopper (8).

5. An engineering design roof insulation ventilation unit according to claim 1, characterized in that: the surface of the shell (2) is provided with a fixing plate (16).

6. An engineering design roof insulation ventilation unit according to claim 1, characterized in that: the motor protection shell (3) is internally provided with a bidirectional electromagnetic relay (17), and the bidirectional electromagnetic relay (17) is electrically connected with the motor (4).

7. An engineering design roof insulation ventilation unit according to claim 1, characterized in that: the motor protection shell (3) is internally provided with a transformer (18), and the transformer (18) is electrically connected with the bidirectional electromagnetic relay (17).

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