CN112539502A

CN112539502A - Pipeline supercharging device for fresh air system

Info

Publication number: CN112539502A
Application number: CN202011460984.3A
Authority: CN
Inventors: 陈泽烽
Original assignee: Zhejiang Juyun Pipe Industry Co ltd
Current assignee: Dongguan Huake Environmental Technology Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-03-23
Anticipated expiration: 2040-12-12
Also published as: CN112539502B

Abstract

The invention discloses a pipeline supercharging device for a fresh air system, and relates to the technical field of fresh air systems; the fan comprises a fresh air pipeline, an installation pipe, a fixed pipe, a mute bearing, a fan mechanism, a gear sleeve, a primary air duct, a secondary air duct, fan blades, a transmission gear and a motor; the fan mechanism comprises a primary air duct, a secondary air duct and fan blades, the primary air duct is sleeved outside the secondary air duct, and a plurality of groups of arc-shaped fan blades which are uniformly distributed are fixedly connected between the primary air duct and the secondary air duct; the gear sleeve is fixedly connected to the outer side of the first-stage air duct, and fixing pipes with the same inner diameter as that of the first-stage air duct are fixedly connected to the two sides of the first-stage air duct. This device is installed in the new trend pipeline, can carry out the pressure boost to the air current in the new trend pipeline, shares the burden of main power fan, and reduce cost improves work efficiency, improves the flow quality, the noise abatement.

Description

Pipeline supercharging device for fresh air system

Technical Field

The invention relates to the technical field of fresh air systems, in particular to a pipeline supercharging device for a fresh air system.

Background

The new trend system is one kind and is used for carrying out inside and outside air exchange to the confined indoor, realizes simultaneously carrying out the system that purifies to the air that supplies inside, and the new trend system can effectual improvement room air quality, reduces indoor dust fall, realizes under the condition of not windowing that fresh air continuously attacks, and under the crossed condition of outdoor air environment, the new trend system can provide indoor local high air quality's space, has very big effect to improving people to the volume living environment.

Generally, for a space where decoration is finished, an all-in-one machine is often used for a fresh air system of a thick street, namely fresh air equipment without a pipeline is not required to be installed, an air outlet and an air inlet are both installed on the all-in-one machine, the equipment does not need to be paved with a pipeline, and the purification efficiency is relatively low. The other type is a fresh air system which is installed through pipeline laying in the decoration process, the arrangement of air inlet and outlet of each room is realized through establishing a complete pipeline system, air supply and air exhaust of the fresh air system are carried out in a unified mode, and the purpose of integrally improving the air quality in the house is achieved.

To the great house of area, the new trend pipeline length of unified installation probably reaches tens meters, and there is a large amount of flex points, when using, in order to realize effective air supply and convulsions to each room, need use powerful fan, even so, it is longer to the pipeline, and there are a large amount of flex points in the pipeline layout and lead to the condition that increases flow resistance, the efficiency of pressure transmission reduces, the bleed air efficiency of distal end still can be less than the expectation, and too big fan of power, can form considerable air current noise in the room pipeline that is close new trend machine, when the night rest, air current noise can make the room be in the noise environment for a long time, reduce quality of life.

Chinese patent specification CN109681986A discloses a fresh air system, including a blower and an air flow passage, which uses a roots blower to improve the problem of too low static pressure provided by a common blower, but this improvement mode, although it can provide larger pressure at the equipment end, still can not change the problems of too low static pressure at the far end and increased noise under large suction.

Disclosure of Invention

The invention aims to provide a pipeline supercharging device for a fresh air system, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a pipeline supercharging device for a fresh air system comprises a fresh air pipeline, an installation pipe, a fixing pipe, a mute bearing, a fan mechanism, a gear sleeve, a primary air duct, a secondary air duct, fan blades, a transmission gear and a motor; the fan mechanism comprises a primary air duct, a secondary air duct and fan blades, the primary air duct is sleeved outside the secondary air duct, and a plurality of groups of arc-shaped fan blades which are uniformly distributed are fixedly connected between the primary air duct and the secondary air duct; the gear sleeve is fixedly connected to the outer side of the first-stage air duct, and fixing pipes with the same inner diameter as that of the first-stage air duct are fixedly connected to the two sides of the first-stage air duct.

As a still further scheme of the invention: the gear teeth of the gear sleeve are meshed with the transmission gear on the outer side, and the transmission gear is fixedly connected with the motor through the transmission shaft.

As a further scheme of the invention: the inner diameters of the primary air duct and the fixed pipe are the same as the inner diameter of the fresh air pipeline.

As a still further scheme of the invention: the end face outer side of the fresh air pipeline is fixedly connected with an installation pipe, a part of the installation pipe, which exceeds the end face of the fresh air pipeline, is fixedly connected with a mute bearing inwards, and the inner side of the mute bearing is fixedly connected with a fixed pipe.

As a still further scheme of the invention: the base radius of the gear teeth of the gear sleeve is larger than the outer diameter of the installation pipe.

As a still further scheme of the invention: the motor is fixedly connected to the mounting cylinder through a fixing support, and the motor is connected with a lead.

As a still further scheme of the invention: and streamline wing tips are fixedly connected to the front edges of the secondary air duct and the fan blades.

Compared with the prior art, the invention has the beneficial effects that:

by adopting the pipeline supercharging device for the fresh air system, the device is arranged in a connecting pipeline of the fresh air system and is arranged at the position of a principle fresh air fan, the device drives a fan mechanism to operate through an externally-arranged motor, extra power is added at the position of the principle fan, so that enough static pressure can be provided in the fresh air pipeline far away from the fan, a far-end room can still enjoy enough fresh air purification effect, meanwhile, the working pressure of a main fan in the fresh air system is reduced, and the overall cost is reduced;

by adopting the pipeline supercharging device for the fresh air system, the inner side of the secondary air cylinder can normally pass through by air flow, and the motor is not arranged on the inner side of the primary air cylinder, so that the pressure increase of the fan mechanism to a fan pipeline is reduced as much as possible, the device is prevented from becoming a source for reducing the working efficiency of the fresh air system, and the motor is arranged on the outer side of the fresh air pipeline, so that the gap and the replacement are convenient, the pipeline does not need to be damaged when the motor is damaged and maintained, and the service life of the fresh air pipeline is prolonged;

by adopting the pipeline supercharging device for the fresh air system, the front edges of the secondary air cylinder and the fan blades are provided with the streamline wing tips, the wing tips can separate the incoming flow in a milder mode, the problem that the noise is increased due to turbulence generated when the air flow passes through the fan mechanism is solved, the air flow can be combed when the fan mechanism rotates, and the noise is reduced;

adopt above-mentioned pipeline supercharging device for new trend system, when the air current flows along the solid, can be at solid surface southwest engineering boundary layer, the intraformational fluid of boundary is because the viscous action, relative pipe wall does not take place to flow, the air current separation takes place outside the boundary layer, form the torrent, the torrent is a main source of air current flow noise, thick convenient layer also can make the flow face you of air current reduce, and then lead to the flow to reduce, when the fan mechanism of this device starts, because the internal diameter of second grade dryer is the same with the internal diameter of fan pipeline, the flabellum rotates and can siphons away the boundary layer on the front end pipe wall, reduce boundary layer thickness, reduce the noise, improve the flow.

Drawings

Fig. 1 is a schematic structural diagram of a pipeline supercharging device for a fresh air system.

Fig. 2 is a schematic structural view of a fan mechanism in a duct boosting device for a fresh air system.

Fig. 3 is a schematic structural view of a silencing sleeve in a pipeline pressurization device for a fresh air system.

In the figure: 1. a fresh air duct; 2. installing a pipe; 3. a mute bearing; 4. a fixed tube; 5. a gear sleeve; 6. a fan blade; 7. a secondary air duct; 8. a wing tip; 9. a wire; 10. a motor; 11. fixing a bracket; 12. a drive shaft; 13. a transmission gear; 14. gear teeth; 15. a primary air duct; 16. a fan mechanism.

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.

Example 1

Referring to fig. 1 to 3, in embodiment 1 of the present invention, a pipeline supercharging device for a fresh air system includes a fresh air pipeline 1, an installation pipe 2, a fixed pipe 4, a silent bearing 3, a fan mechanism 16, a gear sleeve 5, a primary air duct 15, a secondary air duct 7, fan blades 6, a transmission gear 13, and a motor 10; the fan mechanism 16 comprises a primary air duct 15, a secondary air duct 7 and fan blades 6, wherein the primary air duct 15 is sleeved outside the secondary air duct 7, and a plurality of groups of uniformly distributed arc-shaped fan blades 6 are fixedly connected between the primary air duct 15 and the secondary air duct 7; the gear sleeve 5 is fixedly connected to the outer side of the primary air duct 15, and the fixing pipes 4 with the same inner diameter as that of the primary air duct 15 are fixedly connected to two sides of the primary air duct 15.

After the device is put into use, the airflow is driven by the negative pressure formed by the fan at the pipe end and is also driven by the fan mechanism 16 of a separate facility in the pipeline in an auxiliary way, and the fan blades 6 are controlled to rotate to boost and energize the airflow in the flow, so that the moving speed is improved, and the airflow with enough static pressure can be formed in the fresh air pipeline 1 far away from the fan.

The gear teeth 14 of the gear sleeve 5 are meshed with the transmission gear 13 on the outer side, and the transmission gear 13 is fixedly connected with the motor 10 through the transmission shaft 12. The inner diameters of the primary air duct 15 and the fixed pipe 4 are the same as the inner diameter of the fresh air pipeline 1. The end face outer side of the fresh air pipeline 1 is fixedly connected with an installation pipe 2, a part of the installation pipe 2, which exceeds the end face of the fresh air pipeline 1, is fixedly connected with a mute bearing 3 inwards, and the inner side of the mute bearing 3 is fixedly connected with a fixed pipe 4. The base radius of the gear teeth 14 of the gear sleeve 5 is larger than the outer diameter of the mounting tube 2. The motor 10 is fixedly connected to the mounting cylinder through a fixing support 11, and the motor 10 is connected with the lead 9. And streamline wing tips 8 are fixedly connected to the front edges of the secondary air duct 7 and the fan blades 6.

In the decoration process, the lead 9 at the tail part of the quiet fan is connected into a power supply system of the whole house, the motor 10 is driven to rotate by the transmission shaft 12 after being started, the transmission gear 13 is meshed with the gear teeth 14 of the gear sleeve 5, so the motor 10 can drive the fan mechanism 16 inside the gear sleeve 5, the air flow inside the secondary air duct 7 is not influenced to pass through when the fan mechanism 16 rotates, meanwhile, the fan blades 6 rotate to form a negative pressure area, the air flow in the fresh air duct 1 is pressurized, and the speed of the air flow is increased. Under the longer condition of fresh air pipeline 1, the pressure effect in the fresh air pipeline 1 of keeping away from the fan is less, and the efficiency of taking a breath is low, and this device can improve the air velocity in the local pipeline, accelerates for the air current, improves whole efficiency of taking a breath. And because this device can share certain pressure boost work, the fan power in the new trend equipment can suitably reduce, both reduced equipment cost, also can avoid being close to the space of fan because the too big noise that produces of new trend pipeline 1 air current pressure.

Example 2

Referring to fig. 1 to 3, the main differences between the embodiment 2 and the embodiment 1 are:

and streamline wing tips 8 are fixedly connected to the front edges of the secondary air duct 7 and the fan blades 6.

Streamlined wingtip 8 can effectual split the incoming flow when using, reduces the torrent and the noise that the incoming flow directly strikes and produce on the plane, and gentle change air current direction has avoided the problem that the plane can cause the air current resistance increase simultaneously. The motor 10 of this device is installed in fresh air pipeline 1 outside, and the volume of motor 10 can not become fresh air pipeline 1's internal resistance during the use, simultaneously owing to install in the outside, the problem appears is that the degree of difficulty of maintenance can both reduce a lot.

Because the secondary air duct 7 of the device is hollow, the air flow can directly pass through the hollow part, and simultaneously, the fan blade 6 fixedly connected to the outer side of the secondary air duct 7 forms new pressurized air flow when rotating, thereby improving the flow speed of the air flow. Because flabellum 6 directly extends to the internal diameter edge of new trend pipeline 1, the suction that forms when flabellum 6 operates also can be with the boundary layer suction on this section new trend pipeline 1, reduces the thickness of convenient layer to a certain extent, when improving the velocity of flow, reduces the reynolds number, makes the flow of air current more steady gentler, reduces the noise influence.

The working principle of the invention is as follows:

according to the device, the fan mechanism 16 is connected into the fresh air pipeline 1, and the fan mechanism 16 rotating under the driving of the motor 10 boosts and accelerates the air flow in the fresh air pipeline 1, so that the static pressure in the fresh air pipeline 1 far away from a fan is improved, the ventilation efficiency of the fresh air pipeline 1 is improved, the burden of a main fan of a fresh air system is reduced, and the equipment cost is reduced. Streamlined wingtips 8 are installed to this device's second grade dryer 7 and flabellum 6, make the gentle separation of air current through the effect of wingtips 8, reduce the resistance, improve work efficiency. This device can adsorb the boundary layer on 1 ancient coin of new air duct, reduces the air flow resistance, improves work efficiency, noise reduction.

It will be evident to those skilled in the art that the invention 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 invention 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

1. A pipeline supercharging device for a fresh air system is characterized by comprising a fresh air pipeline (1), an installation pipe (2), a fixed pipe (4), a mute bearing (3), a fan mechanism (16), a gear sleeve (5), a primary air duct (15), a secondary air duct (7), fan blades (6), a transmission gear (13) and a motor (10); the fan mechanism (16) comprises a primary air duct (15), a secondary air duct (7) and fan blades (6), the primary air duct (15) is sleeved outside the secondary air duct (7), and a plurality of groups of uniformly distributed arc-shaped fan blades (6) are fixedly connected between the primary air duct (15) and the secondary air duct (7); gear sleeve (5) are fixedly connected to the outer side of the primary air duct (15), and fixing pipes (4) with the same inner diameter as that of the primary air duct (15) are fixedly connected to the two sides of the primary air duct (15).

2. The pipeline supercharging device for the fresh air system according to claim 1, wherein gear teeth (14) of the gear sleeve (5) are engaged with an outer transmission gear (13), and the transmission gear (13) is fixedly connected with the motor (10) through a transmission shaft (12).

3. The duct supercharging device for fresh air systems according to claim 1, characterized in that the inner diameters of the primary air duct (15) and the stationary duct (4) are the same as the inner diameter of the fresh air duct (1).

4. The pipeline supercharging device for the fresh air system according to claim 1, wherein an installation pipe (2) is fixedly connected to an outer side of an end surface of the fresh air pipeline (1), a mute bearing (3) is fixedly connected to a portion, exceeding the end surface of the fresh air pipeline (1), of the installation pipe (2) inwards, and a fixing pipe (4) is fixedly connected to an inner side of the mute bearing (3).

5. The pipe pressurization device for a fresh air system according to claim 1 or 2, characterized in that the gear teeth (14) of the gear sleeve (5) have a base radius larger than the outer diameter of the mounting pipe (2).

6. The duct supercharging device for a fresh air system according to claim 1, wherein the motor (10) is fixedly connected to the mounting cylinder through a fixing bracket (11), and the motor (10) is connected to the lead (9).

7. The duct supercharging device for the fresh air system according to claim 1, wherein streamlined wing tips (8) are fixedly connected to the leading edges of the secondary wind tunnel (7) and the fan blades (6).