CN110779139B

CN110779139B - Fan automatic control device and high-rise building fresh air system comprising same

Info

Publication number: CN110779139B
Application number: CN201911034512.9A
Authority: CN
Inventors: 董秀富; 颜鲁博; 葛放; 张传祥; 张宪涛; 徐欣
Original assignee: Shandong Hi Speed Qilu Construction Group Co ltd
Current assignee: Shandong Hi Speed Qilu Construction Group Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-09-29
Anticipated expiration: 2039-10-29
Also published as: CN110779139A

Abstract

In order to solve the problems of inconvenient start and stop of a fan and high energy consumption of the system, the invention provides an automatic fan control device and a high-rise building fresh air system comprising the same, wherein the automatic fan control device comprises an electric connecting plate, a fixed shaft, a sliding support and an air cup, the fixed shaft is fixedly connected above the electric connecting plate and is distributed in the vertical direction, the sliding support consists of a sliding ring coaxially connected to the fixed shaft in an up-and-down sliding manner, a plurality of connecting rods fixedly connected with a fixed ring and the air cup fixedly connected to the end part of the connecting rod, the connecting rods are downwards inclined to a horizontal plane to form a certain included angle, the air cup is a hemispherical or conical shell, the air cup is obliquely upwards arranged between the horizontal plane and the air cup to form a certain included angle, the concave surfaces of the air cup are arranged and distributed along one direction, in addition, The connecting rod, the sliding ring, the fixed shaft and the fan are sequentially connected in series, and the start and stop of the control circuit are carried out through the up-and-down movement of the wind cup.

Description

Fan automatic control device and high-rise building fresh air system comprising same

Technical Field

The invention relates to the technical field of air conditioning in buildings, in particular to an automatic fan control device and a high-rise building fresh air system comprising the same.

Background

The fan often is the normal open state among the current new trend system, and its control switch is manual control switch moreover, needs artifical manual opening or close, and the operation is inconvenient.

The fresh air system sends fresh air to the room by special equipment on one side of the room and discharges the fresh air to the outside from the other side of the room, and a fresh air flowing field can be formed indoors, so that the requirement of indoor fresh air ventilation is met. The implementation scheme is as follows: the new wind flow field is formed in the system by adopting a high wind pressure and large flow fan, supplying air from one side to the indoor by means of mechanical strength and discharging the air from the other side to the outdoor by a specially designed exhaust fan. The air entering the room is filtered, disinfected, sterilized, oxygenated and preheated (in winter) while the air is supplied.

The existing fresh air system always needs the fan to continuously exhaust air to the outdoor, so that not only is the energy consumption high, but also once the fan is stopped, the air supply system can integrally stop running to influence the integral running of the fresh air system.

Disclosure of Invention

In order to solve the problems that the fan of the existing fresh air system is inconvenient to start and stop, the system cannot run after the fan is stopped and the overall energy consumption of the system is high, the invention provides an automatic fan control device and a fresh air system of a high-rise building, which comprise the device, and the adopted technical scheme is as follows:

the automatic control device of the fan is characterized by comprising an electric connecting plate, a fixed shaft, a sliding bracket and a wind cup, the fixed shaft is fixedly connected above the electric connecting plate and is vertically distributed, the sliding support consists of a sliding ring coaxially connected with the fixed shaft in a vertical sliding manner, a plurality of connecting rods fixedly connected with the fixed ring and a wind cup fixedly connected with the end part of each connecting rod, the connecting rod and the horizontal plane are inclined downwards to form a certain included angle, the wind cups are hemispherical or conical shells, the wind cups and the horizontal plane are inclined upwards to form a certain included angle, the concave surfaces of the wind cups are arranged and distributed along one direction, in addition, the wind cup wind-driven generator also comprises a power supply, when the wind cup is in a contact state with the electric connection plate, the wind cup, the connecting rod, the sliding ring, the fixed shaft and the fan are sequentially connected in series, and the on-off of the circuit is controlled through the up-and-down movement of the wind cup.

Preferably, the electric connecting plate, the fixed shaft, the sliding ring and the connecting rod are all made of conductive materials.

The fresh air system for the high-rise building comprises an air guide pipe positioned indoors and an exhaust pipe fixedly connected above a roof, wherein the exhaust pipe is communicated with the air guide pipe, a fan is arranged in the exhaust pipe, it is characterized in that a first switch valve positioned below the fan is arranged in the exhaust pipe, the outer side of the exhaust pipe is connected with an automatic air extractor communicated with the interior of the exhaust pipe, the automatic air extractor is positioned below the first switch valve and mainly comprises a communicating pipe and an air suction pipe, the communicating pipe is fixedly connected with the outer surface of the air exhaust pipe and is communicated with the interior of the air exhaust pipe, the air suction pipe is of a Venturi tube structure with small inner diameter at the middle part and large inner diameters at two ends, the communicating pipe is communicated with the middle part of the air suction pipe, and the axis of the air suction pipe is distributed along the direction parallel to the horizontal plane, and in addition, the automatic control device for starting and stopping the fan is also included, and is any one of the automatic control devices.

Preferably, the automatic air exhaust devices are provided with a plurality of groups, and the air suction pipes of each group of automatic air exhaust devices are arranged in different directions.

Preferably, a plurality of groups automatic air exhaust device all connects the different height on the exhaust pipe to multiunit automatic air exhaust device is along exhaust pipe circumferencial direction evenly distributed.

Preferably, a second switch valve is arranged inside the suction pipe.

The invention has the beneficial effects that:

1. when outdoor wind-force is great, this moment the wind cup receives ascending power along fixed axle upwards sliding under the blowing of wind-force, thereby lead to the fan power disconnection, only draw indoor gas out through the aspiration channel this moment, when outdoor wind-force is less to lead to the aspiration channel to trade the wind effect when not obvious, this moment the wind cup is at slip ring, connecting rod and wind cup three's self gravity down landing, final wind cup is connected with the electric link plate, fan switch on power starts this moment, take a breath, guarantee that new trend system continuously operates.

2. The air suction pipe adopts the Venturi tube, when air passes through the air suction pipe, the air flow speed is accelerated, the air pressure is reduced, and the indoor air of the air enters the air suction pipe through the air guide pipe and the communicating pipe, so that the indoor air is led out, the indoor air can be conveniently led out under the condition that certain wind power exists outdoors, the structure is simple, and the energy consumption is low;

3. different air draft modes can be automatically selected according to the wind power, and the overall energy consumption of the system is greatly reduced.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

FIG. 2 is a view of the connection structure of the exhaust pipe and the suction pipe in the A direction

FIG. 3 is a schematic view of the structure of the connecting rod and the wind cup

In the figure, 1-roof, 2-exhaust pipe, 3-fan, 4-power supply, 5-communicating pipe, 6-suction pipe, 7-first switch valve, 8-fixed shaft, 9-sliding ring, 10-connecting rod, 11-wind cup, 12-electric connecting plate and 13-second switch valve.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1, the high-rise building fresh air system mainly comprises an indoor air duct and an exhaust duct 2 located above a roof 1, wherein a fan 3 used for exhausting air to the outside is fixedly connected to the upper portion inside the exhaust duct 2, the fan 3 is connected with a power supply 4 used for providing power, and a first switch valve 7 located inside the exhaust duct 2 is arranged below the fan 3 and used for controlling the opening and closing of a pipeline of the exhaust duct 3.

Four groups of automatic air draft devices for exhausting air to the outside are arranged from top to bottom in the height direction of the exhaust pipe 3, each group of automatic air draft devices consists of a communicating pipe 5 and an air draft pipe 6, the communicating pipe 5 of each group of automatic air draft devices is vertically distributed with the exhaust pipe 3, one end of the communicating pipe 5 is communicated with the inside of the exhaust pipe 3, the other end is communicated with the middle part of the air draft pipe 6, the air draft pipe 6 is of a Venturi tube structure with large inner diameters at two ends and small inner diameter at the middle, as shown in figure 2, the axis of the communicating pipe 5 is distributed perpendicular to the axis direction of the air draft pipe 6, the four air draft pipes 6 are respectively arranged in the front, the back, the left and the right directions of the exhaust pipe 3, the four air draft pipes 6 are different in the height direction of the exhaust pipe 5, in addition, the connecting points of the communicating pipe 5 and the exhaust pipe 3 are all arranged below the, open the second ooff valve 13 that is located communicating pipe 5, at this moment, when the inside windy of aspiration channel 6 passed through, because aspiration channel 6's structure, gaseous through aspiration channel 6 middle part, the velocity of flow grow, atmospheric pressure reduces, therefore gaseous in the exhaust pipe 3 because the negative pressure enters into aspiration channel 6 inside through communicating pipe 5, discharges through aspiration channel 6 at last, and the device can reach the effect of automatic convulsions under the prerequisite that has certain wind speed.

In addition, the fan 3 is connected with an automatic control device for controlling the start and stop of the fan 3, specifically, an electrical connection plate 12 in a plate structure is fixedly arranged above the roof 1, a fixed shaft 8 is vertically and fixedly connected above the electrical connection plate 12, the fixed shaft 8 is vertically distributed from top to bottom, a sliding ring 9 is coaxially and slidably connected on the fixed shaft 8 from top to bottom, 4 groups of connecting rods 10 are fixedly connected on the outer side surface of the sliding ring 9 along the circumferential direction, the connecting rods 10 are obliquely distributed from left to right at a certain angle downward as shown in fig. 3, a wind cup 11 is fixedly connected at the lower end of the connecting rod 10, the wind cups 11 are in a hemispherical structure, the concave surfaces of the wind cups are arranged along one direction, as shown in fig. 3, each wind cup 11 is obliquely upwards at a certain included angle with the horizontal plane from left to right, and four wind cups 11 are uniformly distributed along, the electric connecting plate 12, the wind cup 11, the connecting rod 10, the sliding ring 9 and the fixed column 8 are all made of conductive materials, the fixed column 8 is connected with the fan 11, the electric connecting plate 12 and the fan 3 are both connected with the power supply 4, the wind cup 11 slides downwards under the action of the gravity of the wind cup 11, the connecting rod 10 and the sliding ring 9 under the windless state, the wind cup 11 is in contact with the electric connecting plate 12, at the moment, the power supply 4, the wind cup 11, the connecting rod 10, the sliding ring 9, the fixed column 8 and the fan 3 form a complete closed circuit, the power supply 4 drives the fan 3 to rotate, at the moment, the first switch valve 7 is opened for drawing out indoor wind, at the windy state, the wind cup 11 is pushed by wind to have an upward component force, so that the connecting rod 10 and the sliding ring 9 are pushed to move upwards along the fixed column 8, the wind cup 11 is separated from the electric connecting plate 12, the circuit is, air draft can be carried out through the automatic air draft device at the moment.

According to the invention, the first switch valve 7 can be closed and the second switch valve 13 can be opened under the condition that the wind speed reaches a certain speed, and the air exchange is realized through the automatic air extractor, and under the condition that the wind speed is low, the first switch valve 7 and the second switch valve 13 can be closed, and at the moment, the air is extracted through the fan 3, so that the indoor air exchange is realized, the advantage of high wind speed of a high layer is utilized, the energy consumption of a fresh air system is greatly reduced, and the two air exchange modes can be reasonably complemented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Fan automatic control device, its characterized in that, including electricity link plate, fixed axle, sliding support and wind cup, fixed axle fixed connection is in electricity link plate top and be vertical direction and distribute, sliding support by coaxial about sliding connection in the slip ring of fixed axle, with slip ring fixed connection a plurality of connecting rod and fixed connection in the wind cup of connecting rod tip constitute, be certain contained angle distribution of downward sloping between the connecting rod from inside to outside and the horizontal plane on the slip ring radial direction, wind cup is hemisphere type or conical casing, is the certain contained angle distribution that inclines upwards between wind cup and the horizontal plane, wind cup is along slip ring lateral surface circumferencial direction evenly distributed, in addition, still includes the power, is in the contact state at wind cup and electricity link plate, power, electricity link plate, wind cup, connecting rod and slip ring, fixed axle, wind cup, The fans are connected in series in sequence, and the on-off of the circuit is controlled through the up-and-down movement of the wind cups.

2. The automatic fan control device of claim 1, wherein the electrical connection plate, the fixed shaft, the sliding ring and the connecting rod are made of conductive materials.

3. The high-rise building fresh air system comprises an indoor air guide pipe and an exhaust pipe fixedly connected above a roof, wherein the exhaust pipe is communicated with the air guide pipe, a fan is arranged in the exhaust pipe, the high-rise building fresh air system is characterized in that a first switch valve positioned below the fan is arranged in the exhaust pipe, an automatic air extractor communicated with the interior of the exhaust pipe is connected to the outer side of the exhaust pipe, the automatic air extractor is positioned below the first switch valve and mainly comprises a communicating pipe and an air suction pipe, the communicating pipe is fixedly connected to the outer surface of the exhaust pipe and communicated with the interior of the exhaust pipe, the air suction pipe is of a Venturi tube type structure with small inner diameter at the middle part and large inner diameters at two ends, the communicating pipe is communicated with the middle part of the air suction pipe, the axis of the air suction pipe is distributed along a horizontal plane, in addition, the, the direction that every group automatic air extractor's aspiration channel set up is all different, and a plurality of groups automatic air extractor all connect the different height on the exhaust pipe, and multiunit automatic air extractor evenly distributed along the exhaust pipe circumferencial direction, automatic control device is claim 1-2 arbitrary fan automatic control device.

4. The high-rise building fresh air system according to claim 3, wherein a second switch valve is arranged inside the suction pipe.