CN217108716U

CN217108716U - Low-resistance flue gas and air pipeline elbow

Info

Publication number: CN217108716U
Application number: CN202220871612.8U
Authority: CN
Inventors: 田俊玲; 罗斌; 吴永杰; 戴永阳; 靳庆新
Original assignee: Shanghai Defog Environmental Science And Technology Co ltd
Current assignee: Shanghai Defog Environmental Science And Technology Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-02
Anticipated expiration: 2032-04-15

Abstract

The utility model provides a low resistance cigarette wind pipeline elbow, low resistance cigarette wind pipeline elbow includes pipeline turn section, cigarette wind inlet section and cigarette wind outlet section are connected pipeline turn section both ends, wherein, the pipeline turn section includes pipeline interior turn section and the outer turn section of pipeline rather than being connected, the longitudinal section of the outer turn section of pipeline turn section and pipeline in the pipeline all is parabola shape or oval curve, corresponds, the central line of low resistance cigarette wind pipeline elbow is parabola shape or oval curve. The utility model discloses, all be parabola shape or oval curve through the longitudinal section with pipeline incurve section and pipeline incurve section, correspond, will hang down the central line of resistance cigarette wind pipeline elbow and be parabola shape or oval curve's form to reduce cigarette wind pipeline resistance, reach energy saving and consumption reduction, green low carbon's purpose.

Description

Low-resistance flue gas and air pipeline elbow

Technical Field

The utility model relates to a pipeline elbow technical field specifically, relates to low resistance cigarette wind pipeline elbow.

Background

The smoke and wind pipeline is widely applied to the industrial and civil fields of exhaust emission, ventilation and heat exchange and the like, and the resistance of the elbow is an important component of the resistance of a smoke and wind pipeline system;

the smoke and wind pipelines in the industrial fields of thermal power, metallurgy, chemical industry, mines and the like and the fields of large-scale public facilities of subways, civil air defense and the like are in a high-load operation state for a long time, the operation load of a draught fan and a blower can be reduced by reducing the resistance of the smoke and wind pipelines, and the reduction of the resistance of the smoke and wind pipelines is mainly to reduce the resistance of elbows.

Based on this, adopt low resistance flue gas wind pipeline elbow can effectively reduce flue gas wind pipeline system resistance, long-term operation has considerable economic benefits and social to realize energy saving and consumption reduction, green low carbon's purpose.

Disclosure of Invention

To the defect among the prior art, the utility model aims at providing a low resistance flue gas wind pipeline elbow.

According to the low resistance flue gas and air pipeline elbow provided by the utility model, the low resistance flue gas and air pipeline elbow comprises a pipeline bending section, a flue gas and air inlet section and a flue gas and air outlet section, the flue gas and air inlet section and the flue gas and air outlet section are connected at two ends of the pipeline bending section, wherein,

the pipeline bending section comprises a pipeline inward bending section and a pipeline outward bending section connected with the pipeline inward bending section, the longitudinal sections of the pipeline inward bending section and the pipeline outward bending section are both parabolic curves or elliptic curves, and the central line of the corresponding low-resistance smoke and air pipeline elbow is parabolic curves or elliptic curves.

Optionally, the two ends of the bent pipe section are detachably connected with the flue gas inlet section and the flue gas outlet section.

Optionally, the pipeline bend section both ends are with the flue gas wind inlet section and the flue gas wind outlet section can dismantle connected mode does:

the inner walls of two ends of the pipeline bent section are provided with inner thread sections, one end of the flue gas inlet section and one end of the flue gas outlet section, which are connected with the pipeline bent section, are respectively provided with a first outer thread section and a second outer thread section, and the first outer thread section and the second outer thread section are respectively connected with the inner thread sections at two ends of the pipeline bent section.

Optionally, the first external thread section and the second external thread section are respectively sleeved with a first sealing ring and a second sealing ring, two ends of the first sealing ring are respectively attached to the end faces, close to the pipeline bent section and the smoke inlet section, of the pipeline bent section, and two ends of the second sealing ring are respectively attached to the end faces, close to the pipeline bent section and the smoke outlet section, of the smoke outlet section.

Optionally, the pipe inner bending section and the pipe outer bending section are of an integral structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a pair of low resistance cigarette wind pipeline elbow all is parabola shape or oval curve through the longitudinal section with the interior curved section of pipeline and the outer curved section of pipeline, and what correspond is parabola shape or oval curve's form with the central line of low resistance cigarette wind pipeline elbow to reduce cigarette wind pipeline resistance, reach energy saving and consumption reduction, green low-carbon's purpose.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a low resistance flue gas and air duct elbow provided by the present invention;

fig. 2 is a cross-sectional view of a low resistance flue gas duct elbow provided by the present invention;

fig. 3 is the schematic structural diagram of the flue gas inlet section of the low resistance flue gas pipe elbow provided by the utility model.

In the figure: 1. the smoke and wind inlet section; 2. bending a pipeline; 201. a pipe inner bending section; 202. a pipe outer bend section; 3. a flue gas outlet section; 4. a centerline; 5. a first external thread section; 6. a first seal ring.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 to 2, the low resistance flue gas duct elbow of the present invention may include a duct bending section 2, a flue gas inlet section 1 and a flue gas outlet section 3, the flue gas inlet section 1 and the flue gas outlet section 3 being connected to both ends of the duct bending section 2, wherein,

the pipeline bending section 2 comprises a pipeline inward bending section 201 and a pipeline outward bending section 202 connected with the pipeline inward bending section 201, and under general conditions, the pipeline inward bending section 201 and the pipeline outward bending section 202 are of an integral structure, the longitudinal sections of the pipeline inward bending section 201 and the pipeline outward bending section 202 are both parabolic curves or elliptic curves, and correspondingly, the central line 4 of the low-resistance smoke and air pipeline elbow is parabolic curves or elliptic curves;

in practical application, the length of the smoke inlet section 1 and the length of the smoke outlet section 3 can be selected according to actual needs, the smoke inlet section 1 can be generally connected to a chimney or a smoke pipeline, the smoke inlet section 1 can be provided with an external thread section at the connecting end of the smoke inlet section and the chimney or the smoke pipeline, thereby realizing the threaded connection with the internal thread section of the chimney or the smoke pipeline, the smoke inlet section 1 can be provided with a flange at the connecting end of the smoke inlet section and the chimney or the smoke pipeline, and the flange on the smoke inlet section 1 is connected with the flange on the chimney or the smoke pipeline through bolts.

As shown in fig. 3, because the low resistance flue gas wind pipeline elbow uses the back for a long time, its inner wall accumulates impurity and dust easily, for the convenience to clear up low resistance flue gas wind pipeline elbow inner wall, can set the connected mode of 2 both ends of pipeline curved section and flue gas wind inlet section 1 and flue gas wind outlet section 2 to dismantling the connection, the connected mode of 2 both ends of pipeline curved section and flue gas wind inlet section 1 and flue gas wind outlet section 2 dismantled can be for moreover:

the inner walls of the two ends of the pipeline bent section 2 are provided with inner thread sections, one end of the flue gas inlet section 1 and the flue gas outlet section 3, which are connected with the pipeline bent section 2, is respectively provided with a first outer thread section 5 and a second outer thread section, and the first outer thread section 5 and the second outer thread section are respectively connected with the inner thread sections at the two ends of the pipeline bent section 2;

the two ends of the pipeline bent section 2 are provided with the internal thread sections, one end of the smoke air inlet section 1 and one end of the smoke air outlet section 3, which are connected with the pipeline bent section 2, are respectively provided with the first external thread section 5 and the second external thread section, in order to further improve the connection tightness, the first sealing ring 6 and the second sealing ring can be respectively sleeved on the first external thread section 5 and the second external thread section, the two ends of the first sealing ring 6 are respectively tightly attached to the end surfaces, close to each other, of the pipeline bent section 2 and the smoke air inlet section 1, and the two ends of the second sealing ring are respectively tightly attached to the end surfaces, close to each other, of the pipeline bent section 2 and the smoke air outlet section 3.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A low-resistance smoke and air pipeline elbow is characterized by comprising a pipeline bending section, a smoke and air inlet section and a smoke and air outlet section, wherein the smoke and air inlet section and the smoke and air outlet section are connected with two ends of the pipeline bending section,

the pipeline curved segment includes pipeline incurving section and the pipeline incurving section rather than being connected, the longitudinal section of pipeline incurving section and pipeline incurving section all is parabola shape or elliptic curve, corresponds, the central line of low resistance flue gas pipeline elbow is parabola shape or elliptic curve.

2. The low drag flue gas duct elbow of claim 1 wherein: the two ends of the pipeline bent section are detachably connected with the smoke air inlet section and the smoke air outlet section.

3. The low drag flue gas duct elbow of claim 2 wherein: the pipeline bend section both ends with the flue gas wind inlet section and the flue gas wind outlet section's the connected mode of dismantling do:

pipeline curved section both ends inner wall is provided with internal thread section, flue gas wind inlet section and flue gas wind outlet section with the one end that pipeline curved section is connected is provided with first external screw thread section and second external screw thread section respectively, first external screw thread section and second external screw thread section are connected with the internal thread section at pipeline curved section both ends respectively.

4. The low drag flue gas duct elbow of claim 3 wherein: first sealing washer and second sealing washer have been cup jointed respectively on first external screw thread section and the second external screw thread section, the terminal surface that pipeline curved section and cigarette wind inlet section are close to each other is hugged closely respectively at first sealing washer both ends, the terminal surface that pipeline curved section and cigarette wind outlet section are close to each other is hugged closely respectively at second sealing washer both ends.

5. A low drag flue gas duct elbow as claimed in claim 1 wherein the duct inner bend and the duct outer bend are of unitary construction.