阅读说明：本技术 一种用于压缩机出口的导流式弯管 (A water conservancy diversion formula return bend for compressor export ) 是由 淮守成 于 2020-07-10 设计创作，主要内容包括：本发明涉及一种用于压缩机出口的导流式弯管结构,特征是：包括第一法兰、第一直管、导流片、第二直管及第二法兰,所述第一法兰焊接在第一直管上,所述第二法兰焊接在第二直管上,由所述第一法兰、第一直管、第二法兰、第二直管通过焊接组成直角弯管,所述导流片连接在直角弯管转弯处。所述导流片上前缘带倒圆。所述导流片釆用三片。所述导流片采用外插式。本发明主要是通过在直角弯管上外插3个前缘带倒圆的导流片(减小导流片前缘的气流分离),通过插入的导流片,引导气流拐弯。避免气流因剧烈的方向改变,产生大量涡流,造成损失；可提升交换效率,并能保证流场均匀,使流动系统的阻力减小。(The invention relates to a flow guiding type bent pipe structure for an outlet of a compressor, which is characterized in that: the flow deflector comprises a first flange, a first straight pipe, a flow deflector, a second straight pipe and a second flange, wherein the first flange is welded on the first straight pipe, the second flange is welded on the second straight pipe, a right-angle bent pipe is formed by the first flange, the first straight pipe, the second flange and the second straight pipe through welding, and the flow deflector is connected at the turning part of the right-angle bent pipe. The front edge of the flow guide plate is rounded. The flow deflector comprises three flow deflectors. The flow deflector adopts an external insertion type. The invention mainly guides the air flow to turn by externally inserting 3 guide vanes with rounded front edges (reducing the air flow separation of the front edges of the guide vanes) on the right-angle bent pipe and by the inserted guide vanes. The phenomenon that a large amount of eddy current is generated due to violent direction change of the airflow to cause loss is avoided; the exchange efficiency can be improved, the uniformity of the flow field can be ensured, and the resistance of the flow system is reduced.)

1. The utility model provides a water conservancy diversion formula return bend structure for compressor export which characterized by: including first flange (1), first straight tube (2), water conservancy diversion piece (3) second straight tube (4) and second flange (5), first flange (1) welding is on first straight tube (2), second flange (5) welding is on second straight tube (4), by first flange (1), first straight tube (2), second flange (5), second straight tube (4) constitute the right angle return bend through the welding, water conservancy diversion piece (3) are connected in right angle return bend turning department.

2. A flow-directing elbow construction for a compressor outlet as set forth in claim 1, wherein: the front edge of the guide vane (3) is rounded.

3. A flow-directing elbow construction for a compressor outlet as set forth in claim 1, wherein: the flow deflector (3) is provided with three flow deflectors.

4. A flow directing elbow connection for a compressor outlet as set forth in claim 1, wherein:

the flow deflector (3) adopts an external insertion type.

Technical Field

The invention relates to a diversion type elbow, in particular to a diversion type elbow structure for an outlet of a compressor, which is particularly applied to the outlet of the compressor field and belongs to the technical field of mechanical structures.

Background

In the prior art, an outlet of a compressor is usually provided with a bent pipe switching arrangement to realize uniform flow field, but sometimes a standard bent pipe is not allowed to be used under the field condition, but a right-angle bent pipe is provided, so that the stable operation of the compressor is influenced, the right-angle bent pipe is disconnected or leaked conventionally, and the condition of no leakage cannot be ensured. On the other hand, because the medium is compressed air, the flow velocity is greater than 10m/s, the impact force on the pipe wall is large, and if a right-angle elbow is adopted, the flow field in the pipeline presents very complicated flow characteristics. Under the condition of the incoming flow with the flow speed of 12m/s and the pressure rise of 50kp, a separation area is formed near the pipe wall, secondary flow is generated on the cross section of the pipe, and the phenomena not only cause the loss of the total pressure and energy of the fluid, but also form a local barrier area to increase the resistance of a flow system, thereby reducing the heat and mass exchange efficiency.

Disclosure of Invention

An object of the utility model is to provide a can avoid the air current because of violent direction changes, produces a large amount of vortexes, causes the loss, can promote exchange efficiency to can guarantee that the flow field is even, the water conservancy diversion formula return bend structure for compressor export that makes the resistance of flow system reduce.

According to the technical scheme provided by the invention: a diversion-type elbow structure for a compressor outlet is characterized in that: the flow deflector comprises a first flange, a first straight pipe, a flow deflector, a second straight pipe and a second flange, wherein the first flange is welded on the first straight pipe, the second flange is welded on the second straight pipe, a right-angle bent pipe is formed by the first flange, the first straight pipe, the second flange and the second straight pipe through welding, and the flow deflector is connected at the turning part of the right-angle bent pipe.

As a further improvement of the invention, the leading edge of the guide plate is rounded.

As a further improvement of the invention, the flow deflector adopts three flow deflectors.

As a further improvement of the invention, the guide vanes are externally inserted.

Compared with the prior art, the invention has the characteristics and advantages that:

compared with the prior art, the invention mainly leads the airflow to turn by externally inserting 3 flow deflectors with rounded front edges on the right-angle elbow (reducing the airflow separation of the front edges of the flow deflectors) and guiding the airflow to turn by the inserted flow deflectors. The phenomenon that a large amount of eddy current is generated due to violent direction change of the airflow to cause loss is avoided; the exchange efficiency can be improved, the uniformity of the flow field can be ensured, and the resistance of the flow system is reduced.

Drawings

Fig. 1 is a structural front view of the present invention.

Fig. 2 is a cross-sectional view of the structure of the present invention.

Fig. 3 is a side view of a structural bisecting axis of the present invention.

Description of reference numerals: 1-a first flange, 2-a first straight pipe, 3-a flow deflector, 4-a second straight pipe and 5-a second flange.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, the diversion type bent pipe structure for the outlet of the compressor of the present invention is composed of a first flange 1, a first straight pipe 2, a diversion sheet 3, a second straight pipe 4 and a second flange 5. Namely, the device comprises two sections of straight pipes, two flanges and 3 flow deflectors. First flange 1 welds on first straight tube 2, second flange 5 welds on second straight tube 4, by first flange 1, first straight tube 2, second flange 5, second straight tube 4 constitute the right angle return bend through the welding, the turning department at the right angle return bend is connected to water conservancy diversion piece 3.

Preferably, the leading edge of the guide vane 3 is rounded to reduce the flow separation of the leading edge of the guide vane.

Preferably, the deflector 3 adopts three pieces and adopts an external insertion type, so that the manufacturing difficulty can be reduced.

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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.