WO2017092058A1

WO2017092058A1 - Ejection combustion apparatus having movable support frame

Info

Publication number: WO2017092058A1
Application number: PCT/CN2015/096494
Authority: WO
Inventors: 郑秋桐; 潘晓聪; 刘稼瑾
Original assignee: 深圳智慧能源技术有限公司
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2017-06-08

Abstract

An ejection combustion apparatus having a movable support frame, comprising a top level protective cover (20), at least one lower level protective cover (22) positioned below the top level protective cover, and a skid-mounted outer frame (14) fixedly connected to the top level protective cover (20) and the at least one lower level protective cover (22). The skid-mounted outer frame (14) comprises four outer frame rods (16) parallel to the axial direction of the ejection combustion apparatus and multiple horizontal rods (18) connected between the outer frame rods (16). The top level protective cover (20) comprises an upper edge (24) and a lower edge (28), and the multiple horizontal rods (18) comprise four upper horizontal rods (18a) positioned at the upper edge (24) and four lower horizontal rods (18b) positioned at the lower edge (28). The lower edge (28) is supported on the upper surface of the four lower horizontal rods (18b). The upper edge (24) abuts the inner surface of the four upper horizontal rods (18a). The four upper horizontal rods (18a) are movably connected to the four outer frame rods (16). The present movable support frame facilitates the mounting and fixing of the multiple levels of protective covers (12).

Description

Emissive combustion device with movable support frame

Technical field

The present invention relates to an ejector combustion apparatus, and more particularly to an ejector combustion apparatus having a movable support frame.

Background technique

In the petrochemical plant, the venting flare system can process the excess, harmful and unbalanced exhaust gas discharged from the production device in time, and can handle the test vehicle, the unqualified gas generated during the parking, and the large amount of gas instantaneously released during the accident to ensure the device. Normal and safe operation.

The venting flare system typically employs an ejector-type combustion apparatus that includes several layers of venturi burners for combustion of the gas. Several layers of shroud rings are placed around these venturi burners to create a flame chamber that blocks heat radiation, wind and rain. The protective cover of the large flare system is nearly 3 meters in diameter and is not easy to install and fix.

technical problem

In view of this, the present invention proposes an ejector type combustion apparatus having a movable support frame to facilitate installation and fixing of the shield.

Technical solution

The ejector-type combustion apparatus with a movable supporting frame provided by the present invention comprises a top protective cover, at least a lower protective cover below the top protective cover, and a fixed connection with the top protective cover and at least the lower protective cover Armored frame. The armor frame includes four outer frame rods axially parallel to the ejector burner and a plurality of cross bars connected between the outer frame rods. The crossbar is perpendicular to the axial direction. The top shroud includes an upper edge and a lower edge, the plurality of crossbars including four upper crossbars at the upper edge and four lower crossbars at the lower edge. The lower edge is supported on an upper surface of the four lower crossbars. The upper edge abuts against the inner surface of the four upper crossbars. The four upper cross bars are movably connected to the four outer frame bars.

In an embodiment, the lower edge of the shield is circular, and the top shield is a rounded square structure that tapers from bottom to top.

In one embodiment, the diameter of the lower edge is greater than the length of the line between the midpoints of the two pairs of edges of the upper edge, and the length of the diameter of the lower edge is less than the diagonal length of the upper edge.

In one embodiment, for a first longitudinal section including a line connecting the midpoints of the two pairs of sides, an angle between a line connecting the points of the upper edge and the lower edge on the first longitudinal section and the axial direction is How many degrees; for the second longitudinal section including the above diagonal line, the angle between the line connecting the points of the upper edge and the lower edge on the second longitudinal section and the axial direction is how many degrees.

In one embodiment, the ends of each upper crossbar are removably mounted between two adjacent outer frame rods.

In one embodiment, one end of each upper crossbar is pivotally coupled to one of the outer frame rails and the other end is detachably coupled to the adjacent other outer frame rail.

Beneficial effect

In summary, by setting the upper crossbar to the movable connection, the upper crossbar can be removed or opened first, and the top shield can be installed and then the upper crossbar can be fixed. This solution is particularly suitable for embodiments in which the lower edge diameter of the top shroud is greater than the distance between the two opposing cross bars.

DRAWINGS

1 is a schematic view showing the overall structure of an ejector combustion apparatus.

Figure 2 is an enlarged schematic view of the top shield.

Figure 3 is a cross-sectional view of the top shield.

Figure 4 is a diagonal cross-sectional view of the top shield.

Fig. 5 is a partially exploded perspective view of the armored outer frame.

Embodiments of the invention

Before the embodiments are described in detail, it is understood that the invention is not limited to the details The invention may be embodied in other ways. Also, it will be understood that the phraseology and terminology used herein are for the purpose of description The words "including", "comprising", "having", and <RTIgt; </ RTI> <RTIgt; </ RTI> used herein are meant to include the items listed thereafter, their equivalents, and other additional items. In particular, when describing "a certain element", the invention does not limit the number of the elements to one, and may include a plurality.

1 is a schematic view showing the overall structure of an ejector type combustion apparatus. As shown in FIG. 1, the ejector type combustion apparatus includes a plurality of venturi burners 10 and surrounding the plurality of venturi burners 10 along the ejector type combustion apparatus. A multi-layered shield 12 arranged axially. A armor frame 14 is also fixedly attached to the outside of the shield 12.

In the illustrated embodiment, the armor frame 14 includes four outer frame bars 16 that are parallel to the axial direction of the ejector burner. The multi-layered shield 12 is received between the four outer frame rods 16. The armor frame 14 also includes a crossbar 18 that vertically connects any two adjacent outer frame rods 16. The crossbars 18 are arranged in multiple layers, each layer having four crossbars 18. The outer frame rods 16 and the cross bars 18 are enclosed in a rectangular parallelepiped outer frame for receiving the fixed ejector burner.

The multi-layered shield 12 includes a top shroud 20 and at least a lower shroud 22 below the top shroud 20. A layer of four crossbars 18 at the upper edge 24 of the top shield 20 are vertically and fixedly coupled between the four outer frame rails 16 to form a square. A center of each of the four crossbars 18 is provided with a lifting lug 26 for lifting the crane to integrally move the armored structure of the ejector burning device.

Referring also to FIG. 2, the lower shield 22 is cylindrical, and the top shield 20 is a rounded square structure that tapers from bottom to top. The top shroud 20 has a lower edge 28 and an upper edge 24. The circular area enclosed by the lower edge 28 is smaller than the square-like area enclosed by the upper edge 24, thus forming a structure that tapers from bottom to top. The armor frame 14 is provided with four cross bars 18 at its lower and upper edges, hereinafter referred to as an upper crossbar 18a and a lower crossbar 18b. The lower edge 28 is circular and is supported by the lower crossbar 18b, i.e., the lower edge 28 of the top shield 20 rests on the upper surface of the lower crossbar 18b. The upper edge 24 abuts the upper crossbar 18a The inner wall has four straight sides 30 extending along the inner wall of the upper crossbar 18a, and the adjacent straight sides 30 are joined by curved edges 32. The four straight sides 30 are parallel to the upper rail 18a.

As noted above, the top shroud 20 is a rounded square structure that tapers from bottom to top, and the top shroud 20 has a cross-sectional area at the upper edge 24 that is greater than the cross-sectional area at the lower edge 28. Specifically, as shown in FIGS. 3 and 4, a cross-sectional view and a diagonal cross-sectional view of the top shield along the midpoint of the two pairs of sides are respectively illustrated. As can be seen from Figure 3, the diameter 34 at the lower edge 28 of the top shroud 20 is greater than the line 38 between the midpoints 36 of the two opposite sides at the upper edge 24, so in this section, it is tapered from bottom to top. . The angle between the line 40 between the lower edge 28 and the upper edge 24 at the point on the section and the axial direction ranges from 86.4 to 88.2 degrees. In the present embodiment, the angle between the line 40 between the lower edge 28 and the upper edge 24 at the point on the section and the axial direction is 88 degrees.

As can be seen in Figure 4, the diameter 42 at the lower edge 28 of the top shroud 20 is less than the diagonal 44 of the upper edge 24, and thus in this cross-section, it is tapered from bottom to top. The angle between the line 46 between the points of the lower edge 28 and the upper edge 24 on the section and the axial direction ranges from 91.7 to 96.1 degrees. In the present embodiment, the angle between the line 46 between the points of the lower edge 28 and the upper edge 24 on the section and the axial direction is 94 degrees. Although there are tapers and divergence from different sections, in combination, the bottom-up is still diverging, that is, the cross-sectional area at the lower edge 28 is smaller than the cross-sectional area at the upper edge 24.

As noted above, the lower edge 28 of the top shroud 20 rests on the lower crossbar 18b such that the diameter of the lower edge 28 exceeds the distance between the inner walls of the two opposing lower crossbars 18b. In order to achieve the installation of the top cover 20, in the present embodiment, the upper crossbar 18a and the outer frame rail 16 are movably connected. As shown in FIG. 5, one way is that the four upper crossbars 18a can be completely removed from the outer frame rod 16, and after the top cover 20 is loaded between the outer frame rods 16, the upper crossbar 18a is fixed to the outer frame rod 16 . In other embodiments, one end of each upper rail 18a can also be pivotally coupled to one of the outer frame rails 16 and the other end can be detachably coupled to the other outer frame rail 16.

Therefore, the top cover 20 forms a structure that is rotated from the bottom to the top, so that the upper edge area of the top cover 20 is larger than the lower edge area, which increases the opening of the flow path of the top cover 20, and reduces the row. Gas back pressure is conducive to the discharge of gases after combustion. In addition, the square structure of the upper edge 24 of the top shield 20 and the cross-sectional area of the upper edge 24 are increased such that the upper edge 24 is closer to the upper rail 18a and the four straight sides 30 of the upper edge 24 are parallel to the respective rails 18a. The armoring of the shield 12 is easier to fix.

In summary, by setting the top cover of the ejector type combustion device to a rounded square structure which is gradually expanded from bottom to top, the cross section of the top cover is changed from a circle, and the area of the bottom circular section is smaller than that of the top square section. Area, therefore, the flow channel at the top belongs to the diverging flow channel. Such a setting is advantageous for the discharge of the gas after combustion, and reduces the exhaust back pressure of the entire shield, which is beneficial to improving the overall effect of the natural gas venting torch. In addition, it is also advantageous for armoring and fixing.

The concepts described herein may be embodied in other forms without departing from the spirit and scope. The specific embodiments disclosed are to be considered as illustrative and not restrictive. Therefore, the scope of the invention is to be determined by the appended claims Any changes which come within the meaning and range of the claims are intended to be within the scope of the claims.

Claims

An ejector-type combustion apparatus having a movable support frame, comprising a top cover, at least a lower shield located below the top shield, and an armor fixedly coupled to the top shield and at least the lower shield An outer frame, the armor frame includes four outer frame rods axially parallel to the ejector burner, and a plurality of cross bars connected between the outer frame rods, the cross bars being perpendicular to the axial direction, The top cover includes an upper edge and a lower edge, the plurality of cross bars including four upper cross bars at the upper edge and four lower cross bars at the lower edge, the lower edge support On the upper surface of the four lower cross bars, the upper edges abut against the inner surfaces of the four upper cross bars, and the four upper cross bars are movably connected to the four outer frame bars.
The ejector type combustion apparatus having a movable supporting frame according to claim 1, wherein the lower edge of the shield is circular, and the top hood is a rounded square structure which is gradually expanded from bottom to top.
The ejector type combustion apparatus having a movable supporting frame according to claim 2, wherein a diameter of the lower edge is greater than a length of a line between the midpoints of the pair of edges of the upper edge, the lower The diameter of the rim is less than the diagonal length of the upper edge.
An ejector type combustion apparatus having a movable supporting frame according to claim 3, wherein said first and lower edges are at said first longitudinal section including a line between said two pairs of midpoints The angle between the line connecting the points on a longitudinal section and the axial direction is 86.4-88.2 degrees; for the second longitudinal section including the diagonal line, the point of the upper edge and the lower edge on the second longitudinal section The angle between the line and the axial direction is 91.7-96.1 degrees.
The ejector-type combustion apparatus having a movable support frame according to claim 1, wherein both ends of each of the upper cross bars are detachably mounted between the two adjacent outer frame rods.
The ejector type combustion apparatus having a movable supporting frame according to claim 1, wherein one end of each upper crossbar is pivotally connected to one of the outer frame rods, and the other end is detachably coupled to the adjacent one. An outer frame rod.