CN216924643U

CN216924643U - Adjustable roof ventilator

Info

Publication number: CN216924643U
Application number: CN202220177453.1U
Authority: CN
Inventors: 侯全辉; 王耀萱
Original assignee: North China Power Engineering Co Ltd of China Power Engineering Consulting Group
Current assignee: North China Power Engineering Co Ltd of China Power Engineering Consulting Group
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-08
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to an adjustable roof ventilator, which comprises an outer shell with a top vent, wherein a rain baffle is fixedly arranged in the outer shell, supporting legs are fixedly arranged at the bottom of the outer shell, the bottoms of the supporting legs are fixedly connected to a roof, and movable plates which can be opened and closed and are connected through a hinge structure are arranged at the positions below two sides of the outer shell. The adjustable roof ventilator is convenient to use, and can be used for adjusting ventilation quantity in a wider range under the condition that the roof ventilator does not need to be replaced, so that the requirement of adjusting the temperature of the boiler room in different seasons is met.

Description

Adjustable roof ventilator

Technical Field

The utility model relates to the technical field of building ventilation devices, in particular to an adjustable roof ventilator.

Background

In industrial design, roof ventilators have become the preferred mode of industrial building ventilation design in order to meet the requirements of energy conservation, consumption reduction, emission reduction, environmental protection and the like. The roof ventilator uses wind pressure and hot pressure to exhaust air, so that indoor and outdoor air flow forms circulation, and indoor dirty air is discharged. The traditional roof ventilator only enters air through a top ventilation opening and adjusts ventilation volume through opening and closing of a valve plate, and because boiler room equipment and pipelines have large heat insulation quality difference and heat insulation aging conditions exist, the actual heat dissipation of a boiler room is higher than a design value; especially in the close-fitting confined thermal power factory in the northern area in China at present, because the boiler room heat dissipation pipeline, part are more, summer ubiquitous ventilation volume condition not enough, lead to indoor hot-air can't fully discharge, indoor temperature is too high, and the operation maintenance environment is abominable. If the original roof ventilator is dismantled in alternate seasons every year and the roof ventilator with larger ventilation volume is installed, time and labor are wasted and the workload is large. There is therefore a need for a roof ventilator that can accommodate both winter and summer ventilation requirements.

SUMMERY OF THE UTILITY MODEL

Based on the problems in the prior art, the utility model provides the roof ventilator which can be adjusted simply and quickly to meet the ventilation requirements of the boiler room in winter and summer and maintain the proper temperature, and the problem of overhigh indoor temperature at the top of the boiler room caused by insufficient air supply in summer is effectively solved.

According to the technical scheme, the utility model provides an adjustable roof ventilator which comprises an outer shell with a top ventilation opening, wherein a rain baffle is fixedly arranged in the outer shell, supporting legs are fixedly arranged at the bottom of the outer shell, the bottoms of the supporting legs are fixedly connected to a roof, and movable plates which can be opened and closed and are connected through a hinge structure are arranged at the positions, close to the lower portion of two sides of the outer shell, of the outer shell.

Further, the support piece is further included, at least when the movable plate is in the opening state, one end of the support piece is connected with the movable plate, and the other end of the support piece is connected with the supporting leg.

In one embodiment, the support member is a bar-shaped support angle.

In another embodiment, the supporting piece is an adjusting rod, and a plurality of hanging rings are distributed on the adjusting rod along the length direction of the adjusting rod; the one end that the fly leaf kept away from hinge structure is fixed to be provided with the couple, and the couple is connected with the link cooperatedly.

In another embodiment, when the movable plate is in the fully closed state, the movable plate is directly and fixedly connected with the outer shell or the supporting leg.

Preferably, the movable plate is positioned at an angle of 25 to 35 degrees in the fully opened state and the fully closed state.

Furthermore, the outer shell comprises two arc-shaped outer guard plates positioned at two sides and two end plates positioned at the front and rear sides, a structural support is arranged in the outer shell, and supporting legs are arranged at the bottom of the structural support; the two support legs are plate-shaped and arranged side by side; the bottom of the supporting leg is fixedly connected with a purline of a roof, and sealant is arranged at the joint of the supporting leg and the purline; and flashing plates are fixedly arranged on the outward sides of the two supporting legs.

Preferably, the valve plate is hinged with the structural support; the valve plate is connected with a driving mechanism, and the driving mechanism is arranged on the structural support.

In one embodiment, a partition beam parallel to the length direction of the support legs is fixedly arranged between the two support legs and at the position flush with the tops of the support legs on the structural support, and two sides of the partition beam are respectively hinged with a valve plate.

Further, the driving mechanism comprises a motor, a chain wheel, a rotating shaft and a traction rope; the structure support is provided with an upper supporting beam and a lower supporting beam, the motor is fixedly arranged on the lower supporting beam, the rotating shaft is rotatably arranged on the upper supporting beam, the rotating shaft is fixedly sleeved with a chain wheel, the output end of the motor is meshed with a chain, and the other side of the chain is meshed with the chain wheel; one end of the traction rope is connected to the outer position of the valve plate, and the other end of the traction rope is fixedly connected to the rotating shaft.

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

1. under the condition that the main structure of the adjustable roof ventilator is not replaced or changed, the ventilation quantity can be adjusted by adjusting the angle of the movable plate, so that the ventilation quantity is increased in summer, more indoor high-temperature gas is discharged, and the indoor temperature at the roof of the boiler is effectively reduced; in winter, the movable plate is closed to maintain the indoor temperature. Compare current roof ventilator, can carry out the ventilation volume regulation of wider range, satisfy the needs of boiler room temperature adjustment in different seasons.

2. The adjustable roof ventilator has a simple structure, is convenient to use, and effectively solves the problem of overhigh indoor temperature at the top of the boiler room caused by insufficient air supply in summer, for example, in a certain 350MW circulating fluidized bed unit, the indoor temperature at the top of the boiler can be reduced from 55 ℃ to 45 ℃.

Drawings

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a portion of the present invention without an end plate.

Fig. 3 is a schematic structural view of the movable plate in the open state in the embodiment shown in fig. 2.

The names of the components indicated by reference numerals in the drawings are as follows:

1. a top vent; 2. an outer shell; 3. a rain shield; 4. a support leg; 5. a movable plate; 6. supporting angle steel; 7. adjusting a rod; 8. an outer shroud; 9. an end plate; 10. a purlin; 11. a flashing plate; 12. a valve plate; 13. a partition beam; 14. a motor; 15. a chain; 16. a sprocket; 17. a rotating shaft; 18. a hauling rope; 19. an upper support beam; 20. and a lower support beam.

Detailed Description

The utility model provides a roof ventilator which can be adjusted simply and quickly to meet the ventilation requirements of boiler rooms in winter and summer simultaneously so as to maintain proper temperature.

Referring to fig. 1 and 2, an adjustable roof ventilator according to the present invention is a strip-shaped roof ventilator, and fig. 1 to 3 are views viewed from a direction perpendicular to a length direction thereof. The roof ventilator of the utility model is provided with an outer shell 2 of a top ventilation opening 1, a rain baffle 3 is fixedly arranged in the outer shell 2, a supporting leg 4 is fixedly arranged at the bottom of the outer shell 2, and the bottom of the supporting leg 4 is fixedly connected to the roof. Specifically, the outer shell 2 includes two arc-shaped outer protecting plates 8 located at two sides and two end plates 9 located at the front and rear sides, and the inner part of the outer shell 2 is provided with a structural support which plays a role in supporting and fixing each part of the outer shell. A gap is arranged between the upper ends of the two outer guard plates 8, and the two outer guard plates and the front and rear end plates 9 jointly form a top ventilation opening 1. The bottom of the structure support is provided with two support legs 4 which are plate-shaped and arranged side by side. Furthermore, a flashing plate 11 is fixedly arranged on one outward side of each of the two support legs 4. The bottom of the supporting leg 4 is fixedly connected with a purline 10 of a roof, and sealant is arranged at the joint of the bottom and the purline. The part of the roof between the two support legs 4 is a hole which is penetrated up and down, so that hot air in the room can be discharged to the outside from the hole and the top ventilation opening 1; in case of rain, the rain shield 3 and the flashing 11 are arranged in a herringbone manner as shown in fig. 2, so that rain water flows along the rain shield 3, the outer guard 8, the movable plate 5 and the flashing 11 and is discharged to the roof, and does not enter the room from holes in the roof.

The main improvement of the present invention is that the lower positions of both sides of the outer shell 2 are provided with openable and closable movable plates 5 connected by hinge structures, such as hinges or the like. Further, a support member is included, one end of which is connected with the movable plate 5 and the other end of which is connected with the leg 4 at least when the movable plate 5 is in the open state, so that the movable plate 5 is maintained in the open state. It is envisaged that to ensure the support effect, preferably the support members are distributed along the length of the roof ventilator, for example one each adjacent each end.

In a specific embodiment, as shown in fig. 1, the supporting member is a strip-shaped supporting angle 6. In this embodiment, as shown in the left part of fig. 1, when the movable plate 5 is in the fully closed state, the movable plate 5 is directly and fixedly connected with the outer shell 2 (such as the end plate 9) or the leg 4, there is no or only a small gap between the movable plate 5 and the leg 4, and the exchange process of the gas is mainly completed by the top ventilation opening 1, so that a small ventilation volume can be realized in winter, and the indoor temperature cannot be too low. The movable plate 5 and the supporting legs 4 are fixed by spot welding or are connected and fixed by a buckle structure, a bolt structure and the like, so that the movable plate 5 can be conveniently detached and the opening and closing state can be adjusted. Taking a spot welding mode as an example, in summer, a welding point between the movable plate 5 and the supporting leg 4 is broken, the movable plate 5 is separated, then the movable plate 5 is opened and rotated to a required angle, then a supporting angle steel 6 with a corresponding length is placed, and two ends of the supporting angle steel are respectively connected with the movable plate 5 and the supporting leg 4 through spot welding, wherein the opened state is shown in the right part of fig. 1; and removing the support angle steel 6 in winter, and connecting the movable plate 5 with the supporting leg 4 in a spot welding manner, so that the state conversion is realized. Like this, because support piece is the bar-shaped of thin bar relatively, can not cause very big resistance to the air, the fly leaf 5 opens the back, and the landing leg 4 between form the extra air intake in summer, increased the air volume to guarantee that the indoor temperature in summer can not be too high.

In another embodiment, as shown in fig. 2, the movable plate 5 has a gap with a certain width with the leg 4 in the closed state, and the gap is increased after the movable plate 5 is opened, so as to further increase the ventilation amount. In this embodiment, the supporting member is an adjusting rod 7, for example made of steel bar or steel plate, and the adjusting rod 7 is provided with a plurality of hanging rings distributed along its length direction, and one end of the adjusting rod 7 is rotatably connected with the supporting leg 4 or the rest of the structural support, for example, hung on the upper part of the supporting leg 4 by means of two rings buckled with each other as shown in fig. 2. The one end that the fly leaf 5 kept away from hinge structure is fixed to be provided with the couple, and the couple can be connected with the link cooperatedly. Thus, the opening angle of the movable plate 5 can be fixed by adjusting the position where the hook is hung, as shown in fig. 2 and 3.

It is conceivable that the technical features of the two embodiments are exchanged, arranged and combined, and other specific forms of structural brackets, rain shields 3, supporting members, and the like are selected, so that the similar technical effects can be achieved.

In the preferred embodiment, the movable plate 5 is designed in consideration of rain sheltering, and the angle formed by the positions of the movable plate 5 in the fully opened state and the fully closed state is 25 degrees to 35 degrees, and further preferably 30 degrees, so that it can be ensured that the ventilation amount is large enough and no rain enters the room in case of rain.

In a preferred embodiment, the roof ventilator further comprises a valve plate 12, the valve plate 12 being hinged to the structural support; valve plate 12 is connected to a drive mechanism, which is disposed on the structural support. In a specific embodiment, as shown in fig. 2 and 3, a partition beam 13 parallel to the length direction of the support legs 4 is fixedly arranged on the structural support at a position between the two support legs 4 and flush with the tops of the support legs 4, two sides of the partition beam 13 are respectively provided with a valve plate 12 in an articulated manner, for example, by arranging a plurality of hinges. The end of valve plate 12 rests on leg 4; when valve plate 12 is closed, valve plate 12, legs 4 and end plate 9 substantially block the hole above the roof.

The drive mechanism includes a motor 14 (which may have a speed reducer), a chain 15, a sprocket 16, a shaft 17, and a pull cord 18. The structural support is provided with an upper supporting beam 19 and a lower supporting beam 20, a motor 14 is fixedly arranged on the lower supporting beam 20, a rotating shaft 17 is rotatably arranged on the upper supporting beam 19, a chain wheel 16 is fixedly sleeved on the rotating shaft 17, the output end of (a speed reducer of) the motor 14 is meshed with a chain 15, and the other side of the chain 15 is meshed with the chain wheel 16; one end of the pulling rope 18 is connected to a position outside the valve plate 12, for example, as shown in fig. 2, a pulling ring is fixed on the valve plate 12, and the pulling rope 18 is fixed through the pulling ring; the other end of the pulling rope 18 is fixedly connected to the rotating shaft 17. To ensure the driving effect, it is preferable that the pulling rope 18 (and the component for fixing with the valve plate 12) are distributed along the length direction of the rotating shaft 17 in multiple groups, for example, one group is arranged at the position of the rotating shaft 17 near the two ends.

The working process and principle of the valve plate 12 and the driving mechanism thereof are as follows: the motor 14 drives the chain 15 to rotate, and then drives the chain wheel 16 and the rotating shaft 17 to rotate, the traction rope 18 fixed on the rotating shaft 17 is wound, so that the tail end of the valve plate 12 is pulled up to communicate with a ventilator in a room and a roof for natural ventilation; the motor 14 is reversed to lower the valve plate 12 to cover the aperture in the roof so that substantially no room air can enter the roof ventilator through the roof.

According to the utility model, by arranging the movable plate 5, the ventilation quantity can be further increased on the basis of designing the ventilation quantity, more indoor high-temperature gas is discharged in summer, and the indoor temperature at the top of the boiler room is effectively reduced. For example, in a certain 350MW circulating fluidized bed unit, the roof ventilator of the utility model is adopted, and the indoor temperature of the roof of the boiler can be reduced from 55 ℃ to 45 ℃ when the movable plate 5 is in the open state compared with the closed state, so that the ventilation and cooling effects are obvious. In cold winter, the movable plate 5 can be closed by adjustment, so that the ventilation quantity is reduced, and the indoor temperature is maintained. In conclusion, the adjustable roof ventilator is convenient to use, and can be used for adjusting ventilation quantity in a wider range under the condition that the roof ventilator does not need to be replaced, so that the requirement of adjusting the temperature of the boiler room in different seasons is met.

Claims

1. The utility model provides an adjustable roof ventilator, is including outer casing (2) that have top vent (1), outer casing (2) internal fixation is provided with weather shield (3), the fixed landing leg (4) that is provided with in bottom of outer casing (2), the bottom fixed connection of landing leg (4) on the roof, its characterized in that, the position that leans on down in outer casing (2) both sides has fly leaf (5) that can open and shut through the connection of hinge structure.

2. An adjustable roof ventilator according to claim 1 further comprising a support member, one end of which is connected to the movable plate (5) and the other end of which is connected to the leg (4), at least when the movable plate (5) is in the open position.

3. An adjustable roof ventilator as claimed in claim 2 in which the support member is a bar-shaped support angle (6).

4. The adjustable roof ventilator of claim 2, wherein the support member is an adjusting rod (7), and a plurality of hanging rings are distributed on the adjusting rod (7) along the length direction thereof; and a hook is fixedly arranged at one end of the movable plate (5) far away from the hinge structure, and the hook is connected with the hanging ring in a matching manner.

5. An adjustable roof ventilator according to claim 2 in which the movable panel (5) is fixedly connected directly to the outer casing (2) or the leg (4) when the movable panel (5) is in the fully closed condition.

6. An adjustable roof ventilator according to any of the claims 1-5 characterised in that the movable panel (5) is positioned at an angle of 25-35 degrees in both the fully open and fully closed states of the movable panel (5).

7. An adjustable roof ventilator as claimed in any one of claims 1 to 5 in which the outer casing (2) comprises two curved outer shrouds (8) at either side and two end plates (9) at the front and rear, the outer casing (2) having a structural support within it, the legs (4) being at the bottom of the structural support; the two support legs (4) are plate-shaped and arranged side by side; the bottom of the supporting leg (4) is fixedly connected with a purline (10) of the roof, and sealant is arranged at the joint of the bottom of the supporting leg and the purline; and flashing plates (11) are fixedly arranged on the outward sides of the two supporting legs (4).

8. An adjustable roof ventilator as claimed in claim 7 further comprising a valve plate (12), the valve plate (12) being hingedly connected to the structural support; the valve plate (12) is connected with a driving mechanism, and the driving mechanism is arranged on the structural support.

9. An adjustable roof ventilator according to claim 8 characterised in that a partition beam (13) parallel to the length of the legs (4) is fixedly arranged on the structural frame between the two legs (4) and flush with the tops of the legs (4), and a valve plate (12) is hinged to each side of the partition beam (13).

10. The adjustable roof ventilator of claim 8 wherein the drive mechanism comprises a motor (14), a chain (15), a sprocket (16), a shaft (17) and a pull cord (18); the structural support is provided with an upper supporting beam (19) and a lower supporting beam (20), the motor (14) is fixedly arranged on the lower supporting beam (20), the rotating shaft (17) is rotatably arranged on the upper supporting beam (19), the chain wheel (16) is fixedly sleeved on the rotating shaft (17), the output end of the motor (14) is provided with the chain (15) in a meshed manner, and the other side of the chain (15) is meshed with the chain wheel (16); one end of the traction rope (18) is connected to the position, close to the outside, of the valve plate (12), and the other end of the traction rope (18) is fixedly connected to the rotating shaft (17).