CN214065170U

CN214065170U - New trend system hot blast blowpipe apparatus

Info

Publication number: CN214065170U
Application number: CN202120023214.6U
Authority: CN
Inventors: 郭仕玉
Original assignee: Daqing Petrochemical Engineering Co Ltd
Current assignee: Daqing Petrochemical Engineering Co Ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-08-27
Anticipated expiration: 2031-01-06

Abstract

The utility model discloses a new trend system hot blast blowpipe apparatus, this new trend system hot blast blowpipe apparatus include the intake stack and filter. The air inlet pipeline comprises a first pipeline and a second pipeline. The height and width of the first conduit in the direction of the length of the conduit remain constant. The second pipeline comprises a straight pipe section and an expansion section, the straight pipe section is connected to the first pipeline and located between the first pipeline and the expansion section, the height and the width of the straight pipe section are the same as those of the first pipeline, the width of the expansion section is the same as that of the first pipeline, and the size of the expansion section in the height direction is gradually increased along the direction far away from the first pipeline. The filter member is mounted adjacent the diverging section and adjacent the end of the diverging section having the greatest height dimension. The device has the advantages of simple structure, convenient operation, easy installation, safety, reliability, economy and practicality. The device is used for the large-scale fresh air inlet to have excellent effects of preventing rain and wind and sand.

Description

New trend system hot blast blowpipe apparatus

Technical Field

The utility model relates to an air treatment device field especially relates to a new trend system hot blast blowpipe apparatus.

Background

With the continuous development of the industrialization process of China, the serious air pollution problem occurs. The bad weather such as haze, sand dust and the like frequently appears, and the air pollution seriously harms the human health. In recent years, people have increasingly demanded improvement of the environment, and a fresh air system used in a closed building is designed.

When the device for preventing rainwater, wind and sand is arranged at the large-scale fresh air inlet, the bent pipes of 45 degrees, 60 degrees and 90 degrees are generally needed to be used as the fresh air inlet, or a rainproof shutter is directly adopted. However, the large-air-volume fresh air inlet occupies a large area and cannot be used in a working environment with a narrow space. Further, the installation cost is high, and the cost of the apparatus is increased even if the space is not limited. When encountering typhoon rainstorm and sand-blowing weather, the utility model can often lose the function of rain-proof, wind and sand.

Therefore, a great space for improvement still exists in the aspect of rain, wind and sand prevention of the large fresh air inlet.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a new trend system hot blast blowpipe apparatus. The device has the advantages of simple structure, convenient operation, easy installation, safety, reliability, economy and practicality. The device is used for the large-scale fresh air inlet to have excellent effects of preventing rain and wind and sand.

According to the utility model discloses an aspect provides a new trend system hot blast blowpipe apparatus, and the device includes:

the intake stack, the intake stack includes:

a first duct having a height and a width that remain constant along a length of the duct;

a second pipe including a straight pipe section connected to the first pipe and located between the first pipe and the expanding section, the straight pipe section having the same height and width as those of the first pipe, the expanding section having the same width as those of the first pipe, and the expanding section having a size in a height direction gradually increasing in a direction away from the first pipe;

a filter element mounted adjacent the diverging section and proximate an end of the diverging section having a greatest height dimension.

According to the utility model discloses an embodiment, the straight tube section includes roof, diapire and two lateral walls, and roof, diapire and two lateral walls link together and form hollow wind channel, the expansion section includes roof, diapire and two lateral walls, the roof and two lateral walls of expansion section respectively with the roof and two lateral walls of straight tube section flush, the diapire of expansion section for the diapire of straight tube section leans out with first gradient and extends, makes the height dimension of the wind channel of expansion section increases along the direction of keeping away from first pipeline gradually.

According to the utility model discloses an embodiment, the second pipeline still includes the guide section, the guide section sets up the high biggest one end of expansion section and the orientation is kept away from the direction of first pipeline extends, the roof and two lateral walls of guide section respectively with the roof and two lateral walls of expansion section flush, the diapire of guide section for the direction at the diapire place of straight tube section leans out with the second gradient and extends, the second gradient is less than first gradient.

According to an embodiment of the invention, the maximum height of the expansion section is 2 to 3 times the height of the first pipe.

According to the utility model discloses an embodiment, the length dimension of straight tube section with the height dimension of first pipeline equals, the length dimension of expansion section is 1 ~ 2 times the height dimension of first pipeline.

According to the utility model discloses an embodiment, the second gradient is 5 ~ 7, the length of guide section is based on the installation the wall structure's of new trend system size is confirmed.

According to an embodiment of the invention, the filter element is arranged in the guide section, and an empty area serving as a discharge opening is provided between the filter element and the bottom wall of the guide section.

According to the utility model discloses an embodiment, the first pipeline with the second pipeline integrated into one piece or adopt flange joint.

According to an embodiment of the invention, the edge of the guide section is provided with a mounting flange extending outwards perpendicular to the pipe wall in the circumferential direction.

According to an embodiment of the present invention, the mounting flange is mounted to the wall body by a fastener, and a sealing member is provided between the mounting flange and the wall body, and the filter member is in the shape of a louver.

Owing to have above-mentioned structure, the utility model discloses a new trend system hot blast blowpipe apparatus can obtain following multiple beneficial effect:

(1) the pipeline shape of the air inlet area of the fresh air system is designed to be similar to a horn shape, and the effect of preventing rainwater, wind and sand can be achieved without using 45, 60 and 90-degree bent pipes as fresh air inlets, so that the requirement on installation space is remarkably reduced, the cost of the system is reduced, the bottom wall area of the horn-shaped area is large, the horn-shaped area has a blocking effect on rainwater and sand dust entering the pipeline, and the rainwater and sand dust flow to the discharge port along the inclined bottom wall;

(2) different sections of the pipeline are designed to have preset relative sizes, the quantity of rainwater and sand dust entering the pipeline is reduced by controlling the air inlet speed of the pipeline, and the air quantity requirement of a large-air-quantity fresh air system is met;

(3) the air inlet end of the pipeline is provided with a guide section for guiding rainwater and sand dust to flow out, and the rainwater and the sand dust are discharged out of the pipeline in time.

Drawings

Fig. 1 is a schematic view of a fresh air system air intake device according to an embodiment of the present invention;

fig. 2 is a side view of a fresh air system air intake device according to an embodiment of the present invention;

fig. 3 is a schematic view of a fresh air system air intake device in an installation state according to the utility model discloses an embodiment.

In the figure:

1 air inlet pipeline, 1a first pipeline, 1b second pipeline, 2 filtering pieces, 3 sealing pieces, 4 fastening pieces and 5 discharge ports.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

According to the needs, the specification of the utility model discloses the concrete embodiment of the utility model; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. The same or similar reference numerals may indicate the same parameters and components or similar modifications and substitutions thereto. In the following description, various operating parameters and components are described in various embodiments as contemplated. These specific parameters and components are used in this specification as examples only and are not meant to be limiting. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Fig. 1-3 show schematic views of a fresh air system air intake device according to an embodiment of the present invention. The air inlet device of the fresh air system generally comprises an air inlet pipeline 1, a filtering piece 2, a sealing piece 3 and a fastening piece 4.

The air inlet duct 1 generally includes a first duct 1a and a second duct 1b, and the first duct 1a and the second duct 1b may be integrally formed, flanged or sleeved together. The air inlet pipeline 1 can be made of stainless steel.

The height H1 and width W of the first conduit 1a remain substantially constant along the length of the conduit (i.e., parallel to the direction of L as shown). As shown in more detail in fig. 2, the first duct 1a has a generally rectangular parallelepiped shape including a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall, the side walls extending in a height direction and having a height H1. The hollow area formed by connecting the top wall, the bottom wall and the two side walls forms an air duct, and a fan (refer to fig. 1) can be installed in the air duct.

The second conduit 1b generally comprises a straight tube section and an expanded section. One end of the straight pipe section is connected to the first pipe 1a and is located between the first pipe 1a and the divergent section. The height and width of the straight tube section are substantially the same as the height H1 and width W of the first conduit 1a and remain substantially unchanged. In other words, the straight tube section comprises a top wall, a bottom wall and two side walls, which are flush with the top wall, the bottom wall and the two side walls of the first conduit 1a, respectively, or which differ only slightly in size to allow one to be sleeved onto the other. The straight tube section has a length L1 which is equal in size to the height H1 of the first conduit 1 a.

The flared section extends from the other end of the straight tube section in a direction away from the first conduit 1 a. The expansion section also includes a top wall, a bottom wall, and two side walls. The top wall and the two side walls of the flared section are flush with the top wall and the two side walls of the straight tube section, respectively, i.e. the width of the flared section is equal to the width of both the first conduit 1a and the straight tube section. The length L2 of the expanding section is 1-2 times the height H1 of the first pipeline 1 a. The bottom wall of the expanding section extends obliquely outwards at a predetermined first inclination beta relative to the bottom wall of the straight pipe section, so that the size of the expanding section in the height direction gradually increases along the direction away from the first pipeline 1a, the height of the expanding section at the position adjacent to the air inlet is the largest, and the maximum height H2 is about 2-3 times of the height H1 of the first pipeline 1 a. Therefore, the first inclination β may be between 120 ° and 150 °. Therefore, the bottom wall of the expanding section at the position adjacent to the air inlet is in an included angle alpha of 30-60 degrees with the horizontal plane (the plane is parallel to the plane of the bottom wall of the straight pipe section). For example, the length L2 of the divergent section may be 1.6 times the height H1 of the first conduit 1a, the maximum height H2 of the divergent section being about 2.6 times the height H1 of the first conduit 1a, in which case the angle β between the bottom wall of the divergent section and the bottom wall of the straight conduit section is 135 °, and the angle of inclination α near the air inlet is 45 °.

The filter element 2 is arranged adjacent to the expansion section and close to the air inlet. For example, the filter member 2 may have a louver-like filter body that can filter most of rainwater and dust in the air, and a peripheral frame that supports the body. The peripheral frame may be mounted to the wall by fasteners 4. The filter element 2 covers the entire width W and most of the height of the expansion section adjacent to the opening of the air inlet. The lower end of the filter member 2 is left with a predetermined vacant area serving as a drain port 5 for draining rainwater and sand dust entering the duct.

In some embodiments of the present invention, the second pipe 1b may further include a guide section extending from the expanding section toward a direction away from the first pipe. The length of the guide segment may be determined based on the thickness of the wall to which the pipe is installed, for example, the length of the guide segment may be substantially equal to the thickness of the wall. The guide section also includes a top wall, a bottom wall and two side walls. The top wall and the two side walls of the guide section are flush with the top wall and the two side walls, respectively, of the divergent section, but the bottom wall of the guide section extends towards the outside of the pipe with a second predetermined inclination γ with respect to the horizontal plane, γ may range between 5-7 °, for example may be about 6 °. The size of gamma is obviously smaller than the sizes of alpha and beta, and the slope-shaped guide section with smaller gradient is arranged at the position of the second pipeline 1b adjacent to the air inlet, so that rainwater and sand dust entering the pipeline can be discharged out of the pipeline more easily, and the rainwater and the sand dust are prevented from blocking the discharge port 5.

In some embodiments of the present invention, the edge of the guiding section may further be provided with a mounting flange extending outwards perpendicular to the pipe wall in the circumferential direction, and the mounting flange is fixedly mounted to the wall body by the fastening member 4. In such an embodiment, the filter element 2 may be arranged in the guide section. The fastener 4 may be a conventional fastener such as a self-tapping screw, a rivet, a screw, or the like. Further, a seal, such as but not limited to a sealant, may be provided between the wall and the mounting flange for preventing rain, wind, sand in the external environment from entering the building through the gap between the wall and the duct.

Because the utility model discloses a new trend system hot blast blowpipe apparatus has adopted the expansion section of tubaeform for during the air flows the entering expansion section with first flow velocity V1, when it got into straight tube section and first pipeline 1a, because the volume of straight tube section produces the shrink for the volume of expansion section, consequently, the air flows the entering straight tube section with second flow velocity V2, and second flow velocity V2 is greater than first flow velocity V1. For example, when the length L1 of the straight pipe section is 1 times H1, the length L2 of the divergent section is 1.6 times H1 (i.e., the entire length L of the second conduit 1b is about 2.6 times H1), and the maximum height H2 of the divergent section is 2.6 times H1, the fan is controlled so that air enters the guide section and the divergent section at a speed of 2.5m/s, and at this time, the speed of air entering the straight pipe section is about 6.5 m/s. The speed of 2.5m/s can avoid rainwater from being sucked into the pipeline, and the air inlet speed of 6.5m/s can meet the requirement of the system on air volume. The air quantity requirement of a large-air-quantity fresh air system is met, and meanwhile rainwater is prevented from entering a pipeline. When some rain water or sand dust enters the duct, most of the water and sand dust in the air flow impinging on the inclined bottom wall of the divergent section is blocked and flows down the bottom wall to the discharge opening 5 where it is discharged from the duct. Because the area of slope diapire is great, can exert an effect to most air current, realize the effect of blockking to the rainwater and the sand and dust that get into the pipeline.

As shown in fig. 3, the air intake device of the fresh air system of this embodiment may be fixed to the wall perpendicular to the plane of the wall, the louver-shaped filter element disposed at the air intake of the outer wall may be fixed to the wall of the pipeline or directly fixed to the wall, and the straight pipe sections of the first pipeline 1a and the second pipeline 1b are hoisted to the top floor for fixing. The new trend system hot blast blowpipe apparatus that this embodiment provided simple structure, convenient operation to easily the installation avoids maintaining, safe and reliable, economical and practical practices thrift the exterior space.

The utility model discloses a new trend system air inlet device is through the pipeline shape design with the air inlet region of new trend system for approximate loudspeaker form, need not use 45, 60, 90 degrees return bends and also can realize the effect of rain-proof water sand blown by the wind as the new trend entry, is showing to have reduced the requirement to installation space, has reduced the cost of system. Different sections of the pipeline are designed to have preset relative sizes, the quantity of rainwater and dust entering the pipeline is reduced by controlling the air inlet speed of the pipeline, and meanwhile, the requirement of a fresh air system on large air volume is met. The air inlet end of the pipeline is provided with a guide section for guiding rainwater and sand dust to flow out, and the rainwater and the sand dust are discharged out of the pipeline in time.

It is to be understood that the features listed above for the different embodiments may be combined with each other, where technically feasible, to form further embodiments within the scope of the invention. Furthermore, the specific examples and embodiments described herein are non-limiting, and various modifications of the structure, dimensions, materials, etc., set forth above may be made without departing from the scope of the invention.

In this application, the use of the conjunction of the contrary intention is intended to include the conjunction. Furthermore, the conjunction "or" may be used to convey simultaneous features, rather than mutually exclusive schemes. In other words, the conjunction "or" should be understood to include "and/or". The term "comprising" is inclusive and has the same scope as "comprising".

The above-described embodiments, particularly any "preferred" embodiments, are possible examples of implementations, and are presented merely for a clear understanding of the principles of the invention. Many variations and modifications may be made to the above-described embodiments without departing substantially from the spirit and principles of the technology described herein. All such modifications are intended to be included within the scope of this disclosure.

Claims

1. The utility model provides a new trend system hot blast blowpipe apparatus which characterized in that includes:

the intake stack, the intake stack includes:

2. The fresh air system air intake device of claim 1, wherein the straight tube section comprises a top wall, a bottom wall and two side walls, the top wall, the bottom wall and the two side walls are connected together to form a hollow air duct, the expansion section comprises a top wall, a bottom wall and two side walls, the top wall and the two side walls of the expansion section are flush with the top wall and the two side walls of the straight tube section respectively, and the bottom wall of the expansion section extends obliquely outwards at a first inclination relative to the bottom wall of the straight tube section, so that the height dimension of the air duct of the expansion section is gradually increased in a direction away from the first pipeline.

3. The fresh air system intake device of claim 2, wherein the second duct further comprises a guide section disposed at an end of the expanded section having the greatest height and extending away from the first duct, wherein a top wall and two side walls of the guide section are flush with the top wall and two side walls of the expanded section, respectively, and a bottom wall of the guide section extends obliquely outward at a second inclination relative to a direction in which the bottom wall of the straight duct section is located, the second inclination being smaller than the first inclination.

4. The fresh air system intake device of claim 1, wherein the maximum height of the expansion section is 2-3 times the height of the first duct.

5. The fresh air system air intake device of claim 1, wherein the length dimension of the straight pipe section is equal to the height dimension of the first pipeline, and the length dimension of the expansion section is 1-2 times the height dimension of the first pipeline.

6. The fresh air system air intake device of claim 3, wherein the second inclination is 5-7 °, and the length of the guide segment is determined based on the size of a wall structure on which the fresh air system is installed.

7. A fresh air system intake device according to claim 3, wherein the filter element is disposed in the guide section, and a vacant area serving as a discharge port is provided between the filter element and the bottom wall of the guide section.

8. The fresh air system intake device of claim 1, wherein the first duct and the second duct are integrally formed or flanged.

9. The fresh air system intake device of claim 3, wherein the edge of the guide section is provided with a mounting flange extending outwardly in a circumferential direction perpendicular to the duct wall.

10. The fresh air system intake device of claim 9, wherein the mounting flange is mounted to the wall by a fastener, and a seal is disposed between the mounting flange and the wall, and the filter element is louvered.