阅读说明：本技术 一种混风装置及包括该混风装置的烟囱系统 (Air mixing device and chimney system comprising same ) 是由 郑钦臻 吴刚 于 2020-12-17 设计创作，主要内容包括：本发明公开了一种混风装置,包括小圈法兰、大圈法兰以及内筒,所述内筒的下口径小于所述小圈法兰的内径、上口径小于所述大圈法兰的内径；多个叶片绕设于所述内筒外侧且与所述小圈法兰、所述大圈法兰均连接。在烟气上升的过程中,高速气流在内筒内外侧均渐扩变径,局部形成负压,可以将外界冷空气卷入。烟囱排出的高温高湿烟气遇冷形成白雾,进入消白装置中后被消白装置捕集消白。这种中心和外周两部分烟气错层卷吸的方式,结构简单、成本低,能够显著提高整体的卷吸效果,为下步取得较好烟囱消白效果奠定了基础。本还提供了一种烟囱系统,具有相应的优点。(The invention discloses a wind mixing device which comprises a small ring flange, a large ring flange and an inner cylinder, wherein the lower caliber of the inner cylinder is smaller than the inner diameter of the small ring flange, and the upper caliber of the inner cylinder is smaller than the inner diameter of the large ring flange; and the blades are wound on the outer side of the inner cylinder and are connected with the small ring flange and the large ring flange. In the process of smoke rising, the high-speed airflow is gradually expanded and reduced at the inner side and the outer side of the inner cylinder, negative pressure is formed locally, and external cold air can be drawn in. The high-temperature and high-humidity flue gas discharged from the chimney forms white fog when being cooled, and the white fog is collected and whitened by the whitening device after entering the whitening device. The mode of staggered entrainment of the central part and the peripheral part of the smoke has simple structure and low cost, can obviously improve the integral entrainment effect, and lays a foundation for obtaining better chimney whitening effect in the next step. The invention also provides a chimney system with corresponding advantages.)

1. The air mixing device is characterized by comprising a small ring flange (2.2) used for butting the outlet end of a chimney, a large ring flange (2.1) coaxially arranged above the small ring flange (2.2), and an inner cylinder (2.3) arranged in the central position between the small ring flange and the large ring flange, wherein the lower caliber of the inner cylinder (2.3) is smaller than the inner diameter of the small ring flange (2.2), and the upper caliber of the inner cylinder is smaller than the inner diameter of the large ring flange (2.1); a plurality of blades (2.4) are wound on the outer side of the inner cylinder (2.3) and are connected with the small ring flange (2.2) and the large ring flange (2.1).

2. The wind mixing device according to claim 1, characterized in that the inner cylinder (2.3) is a circular truncated cone with a smaller lower caliber and a larger upper caliber, and is coaxial with both the small ring flange (2.2) and the large ring flange (2.1).

3. The wind mixing device according to claim 1 or 2, characterized in that the lower mouth edge of the inner cylinder (2.3) is higher than the small ring flange (2.2), and the upper mouth edge is lower than the large ring flange (2.1).

4. A wind mixing device according to claim 3, characterised in that the lower side of the blades (2.4) is flush with the small ring flange (2.2) and the upper side is flush with the large ring flange (2.1).

5. The wind mixing device according to claim 4, characterized in that each of the blades (2.4) is circumferentially and uniformly wound around the outer side of the inner cylinder (2.3).

6. A chimney system comprises a chimney body (1), a wet plasma generator (3) arranged in the outlet end of the chimney body (1), and a dry plasma generator (4) arranged outside the outlet end of the chimney body (1); characterized in that a wind mixing device (2) according to any one of claims 1-5 is installed between the outlet end of the chimney body (1) and the dry plasma generator (4).

7. The chimney system according to claim 6, characterized in that the wind mixing device (2), the wet plasma generator (3), the dry plasma generator (4) are supported to the chimney body (1) by a support member (5).

Technical Field

The invention relates to the technical field of flue gas emission, in particular to an air mixing device and a chimney system comprising the same.

Background

In the thermal power industry and other industries, the overall level of water resource utilization efficiency is still low, and considerable space is saved. Effective measures are actively taken, the comprehensive utilization rate of water is improved, water is saved, the water-saving water-.

At present, the chimney of various industries often discharges 'white smoke', 'white smoke' is actually water, and 'white smoke' discharge is actually waste of water resources.

Besides the waste of resources, the 'white smoke' also affects the visibility of surrounding residential areas and traffic roads and destroys the urban environment; in addition, the humidity in the downwind area can be increased, and the fog falls on the ground to cause the road surface around the cooling tower to be wet, slippery or frozen, thereby bringing great potential safety hazard to surrounding traffic, influencing the safety production of factories and influencing the safe operation of production equipment around the cooling tower.

How to recover water resources discharged from a chimney with high efficiency and low cost is a problem which needs to be continuously researched.

Disclosure of Invention

The invention aims to provide an air mixing device and a chimney system, which can efficiently and inexpensively complete air mixing and further realize the recovery of water resources in a chimney.

In order to achieve the purpose, the air mixing device provided by the invention comprises a small ring flange for butting the outlet end of a chimney, a large ring flange coaxially arranged above the small ring flange, and an inner cylinder arranged in the central position between the small ring flange and the large ring flange, wherein the lower caliber of the inner cylinder is smaller than the inner diameter of the small ring flange, and the upper caliber of the inner cylinder is smaller than the inner diameter of the large ring flange; and the blades are wound on the outer side of the inner cylinder and are connected with the small ring flange and the large ring flange.

Preferably, the inner cylinder is a circular truncated cone cylinder with a smaller lower caliber and a larger upper caliber, and is coaxial with the small ring flange and the large ring flange.

Preferably, the lower opening edge of the inner cylinder is higher than the small ring flange, and the upper opening edge of the inner cylinder is lower than the large ring flange.

Preferably, the lower side of the blade is flush with the small ring flange, and the upper side of the blade is flush with the large ring flange.

Preferably, each blade is uniformly wound on the outer side of the inner cylinder in the circumferential direction.

The invention also provides a chimney system, which comprises a chimney body, a wet plasma generator and a dry plasma generator, wherein the wet plasma generator is arranged in the outlet end of the chimney body; the air mixing device is arranged between the outlet end of the chimney body and the dry plasma generator.

Preferably, the air mixing device, the wet plasma generator, and the dry plasma generator are all supported by the chimney body through a support member.

The invention provides a wind mixing device, which comprises a small ring flange for butting the outlet end of a chimney, a large ring flange coaxially arranged above the small ring flange, and an inner cylinder arranged in the central position between the small ring flange and the large ring flange, wherein the lower aperture of the inner cylinder is smaller than the inner diameter of the small ring flange, and the upper aperture of the inner cylinder is smaller than the inner diameter of the large ring flange; and the blades are wound on the outer side of the inner cylinder and are connected with the small ring flange and the large ring flange. In the smoke rising process, the high-speed airflow is gradually enlarged and reduced on the inner side and the outer side of the inner cylinder, the flowing cross section is increased, the flow speed is reduced, and according to the Bernoulli principle, negative pressure is locally formed, so that the external cold air can be involved. Along with the mixing of the cold air, the high-temperature and high-humidity flue gas discharged by the chimney forms white fog when meeting cold, and after the white fog enters the white elimination device, the white fog is collected by the white elimination device, so that the white elimination of the chimney is realized.

The inner cylinder divides the smoke at the discharge end of the chimney into a center part and a periphery part, the smoke at the periphery part can be well involved in cold air at the initial stage of removing the chimney, the smoke at the center part can be well involved in the cold air at the higher position at the next stage after rising along with the inner cylinder, and the smoke staggered entrainment mode of the center part and the periphery part has the advantages of simple structure and low cost, can obviously improve the integral entrainment effect, and lays a foundation for obtaining the better chimney whitening effect at the next step.

The chimney system provided by the invention has corresponding advantages and is not described in detail.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a chimney system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the wind mixing device in fig. 1.

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.

The core of the invention is to provide the air mixing device and the chimney system, which can complete air mixing with high efficiency and low cost so as to realize the recovery of water resources in the chimney.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a chimney system according to an embodiment of the present invention; fig. 2 is a schematic structural view of the wind mixing device in fig. 1.

In a first embodiment, the chimney system provided by the invention mainly comprises a chimney body 1, a wind mixing device 2, a wet plasma generator 3, a dry plasma generator 4, a support member 5 and the like.

Wherein, the wet plasma generator 3 is disposed in the outlet end of the chimney body 1, and the wet plasma generator 3 is not exposed normally. The dry plasma generator 4 is provided in addition to the chimney body 1, and the dry plasma generator 4 is usually kept at an appropriate height distance from the outlet end of the chimney body 1.

And an air mixing device 2 is also arranged between the outlet end of the chimney body 1 and the dry plasma generator 4. The air mixing device 2, the wet plasma generator 3, the dry plasma generator 4, etc. can be supported on the chimney body 1 through the supporting component 5, and for the specific shape and structure of the supporting component 5, please refer to the prior art, which is not described herein again.

A detailed description of a specific embodiment of the air mixing device 2 is given below.

The wind mixing device 2 mainly comprises a large ring flange 2.1, a small ring flange 2.2, an inner cylinder 2.3, blades 2.4 and the like.

Wherein, the small ring flange 2.2 is positioned at a relatively lower position and can be butted with the outlet end of the chimney body 1; the large ring flange 2.1 is dimensioned to be significantly larger than the small ring flange 2.2, is located at a relatively high position and is arranged coaxially with the small ring flange 2.2.

The inner cylinder 2.3 is arranged at the center of the flange ring, can be a circular truncated cone with smaller lower caliber and larger upper caliber, and can be coaxially arranged with the large ring flange 2.1 and the small ring flange 2.2; the lower caliber of the inner cylinder 2.3 is smaller than the inner diameter of the small ring flange 2.2, and the upper caliber is smaller than the inner diameter of the large ring flange 2.1.

The lower opening edge of the inner cylinder 2.3 can be equal to or slightly higher than the small ring flange 2.2, and the upper opening edge can be equal to or slightly lower than the large ring flange 2.1.

Therefore, the smoke at the outlet of the chimney is divided into the middle part positioned in the central area and the peripheral part positioned in the peripheral area, the smoke at the peripheral part can be used for sucking the external cold air after flowing out of the chimney, and the smoke at the central part starts to suck the external cold air after rising for a certain height, so that the staggered sucking is realized.

The number of the blades 2.4 can be selected according to the actual situation of the specific occasion, and each blade 2.4 is wound on the outer side of the inner cylinder 2.3 and is connected with the small ring flange 2.2 and the large ring flange 2.1, so that the flue gas at the periphery of the outlet of the chimney is further divided into a plurality of strands distributed in the circumferential direction.

The lower side of the blade 2.4 can be flush with the small ring flange 2.2, and the upper side can be flush with the large ring flange 2.1.

Each blade 2.4 can be uniformly wound on the outer side of the inner cylinder 2.3 in the circumferential direction.

The invention provides a wind mixing device, which comprises a small ring flange for butting the outlet end of a chimney, a large ring flange coaxially arranged above the small ring flange, and an inner cylinder arranged in the central position between the small ring flange and the large ring flange, wherein the lower aperture of the inner cylinder is smaller than the inner diameter of the small ring flange, and the upper aperture of the inner cylinder is smaller than the inner diameter of the large ring flange; and the blades are wound on the outer side of the inner cylinder and are connected with the small ring flange and the large ring flange. In the smoke rising process, the high-speed airflow is gradually enlarged and reduced on the inner side and the outer side of the inner cylinder, the flowing cross section is increased, the flow speed is reduced, and according to the Bernoulli principle, negative pressure is locally formed, so that the external cold air can be involved. Along with the mixing of the cold air, the high-temperature and high-humidity flue gas discharged by the chimney forms white fog when meeting cold, and after the white fog enters the white elimination device, the white fog is collected by the white elimination device, so that the white elimination of the chimney is realized.

The inner cylinder divides the smoke at the discharge end of the chimney into a center part and a periphery part, the smoke at the periphery part can be well involved in cold air at the initial stage of removing the chimney, the smoke at the center part can be well involved in the cold air at the higher position at the next stage after rising along with the inner cylinder, and the smoke staggered entrainment mode of the center part and the periphery part has the advantages of simple structure and low cost, can obviously improve the integral entrainment effect, and lays a foundation for obtaining the better chimney whitening effect at the next step.

The chimney system provided by the invention has corresponding advantages and is not described in detail.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The air mixing device and the chimney system provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.