Converter gas pipeline and rainproof heat preservation structure thereof

Abstract

The utility model discloses a converter gas pipeline and a rainproof heat preservation structure thereof, the converter gas pipeline comprises a pipe body extending along a preset direction, the rainproof heat preservation structure comprises a plurality of first connecting parts fixed on the outer wall of the pipe body, the first connecting parts integrally extend along the preset direction, and the first connecting parts are fixed on the outer wall of the pipe body. The multiple first connecting parts are distributed at intervals in the circumferential direction of the pipe body; the rainproof plates are arranged on the periphery of the pipe body in a sleeving manner at preset intervals; the second connecting parts are fixed to the inner surface of the rainproof plate, the number of the second connecting parts is multiple, and the second connecting parts and the first connecting parts are correspondingly arranged; the second connecting part and the first connecting part are movably connected through a third connecting part, and the rainproof plate is fixed relative to the radial direction of the pipe body and has a preset displacement size in the axial direction. The rain-proof heat preservation structure can prevent rainwater from greatly affecting cooling of the converter gas pipeline, and in addition, the rain-proof heat preservation structure is not affected by thermal expansion and cold contraction of converter gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to converter gas pipeline technical field, especially a kind of converter gas pipeline and its rainproof heat preservation structure. BACKGROUND

[0002] Converter steelmaking primary gas dedusting adopts OG wet method, semi-dry method tower text and LT dry method system.Compared with wet method and semi-dry method, the main advantages of dry method include: the dust removal efficiency of electric dust collector is high, the dust concentration of flue gas after passing through electric dust collector can be reduced to 20mg / Nm 3 ; the calorific value of gas after purification and recovery is high, which can be directly utilized, and the energy cost of fine dedusting is saved; full dry method is beneficial to saving water resources and reducing waste.

[0003] In the conventional LT dry method dedusting process flow, the high-temperature flue gas generated during blowing process of converter is first captured by movable smoke hood, and then passes through vaporization cooling flue, to recover heat energy and primary cool the flue gas.The flue gas temperature at the outlet of vaporization cooling flue is about 800℃-1000℃.The dry method purification and recovery system adopts evaporation cooling method to secondary cool the flue gas and capture coarse particle dust.The flue gas after coarse dedusting enters cylindrical electric dust collector for fine dedusting.The purified gas first passes through switching station, and the qualified gas passes through recovery cup valve and then enters gas cooler for cleaning and cooling before entering gas tank, while the unqualified gas enters dispersing chimney to be discharged into the atmosphere.The evaporation cooler, raw gas pipeline and gas cooler in the dry dedusting system play a major role in cooling.

[0004] The raw gas pipeline is connected from the outlet of evaporation cooler in the workshop to the inlet of electric dust collector outside the workshop.The flue gas temperature is reduced to about 250℃ at the outlet of evaporation cooler, and then enters electric dust collector after being cooled to about 150℃ along the pipeline.The raw gas pipeline has a long cooling distance, and in the actual application in southern region, especially in coastal areas, frequent rain has a great impact on the cooling of raw gas pipeline, affecting the operation and use of the whole system.

[0005] Therefore, it is necessary to provide a converter gas pipeline and its rainproof heat preservation structure to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the defects of the prior art, the utility model embodiment provides a converter gas pipeline and its rainproof heat preservation structure, which can effectively improve the rainproof capability of the converter gas pipeline without affecting the heat dissipation of the converter gas pipeline, avoid excessive impact of rain on the cooling of the converter gas pipeline, and the rainproof heat preservation structure is not affected by the thermal expansion and contraction of converter gas.

[0007] The specific technical scheme of the utility model embodiment is as follows:

[0008] A rainproof and heat-insulating structure for a converter gas pipeline, the converter gas pipeline including a pipe body extending along a predetermined direction, the rainproof and heat-insulating structure including: a first connecting component, the first connecting component being fixed to the outer wall of the pipe body, the first connecting component extending integrally along the predetermined direction, the first connecting component including multiple components, the multiple first connecting components being spaced apart along the circumference of the pipe body; a rainproof plate, the rainproof plate being sleeved on the periphery of the pipe body at predetermined gaps; a second connecting component, the second connecting component being fixed to the inner surface of the rainproof plate, the second connecting component including multiple components, the second connecting component being correspondingly arranged with the first connecting component; the second connecting component and the first connecting component being movably connected through a third connecting component, the rainproof plate being radially fixed relative to the pipe body and having a predetermined displacement dimension in the axial direction.

[0009] In a preferred embodiment, the cross-section of the rainproof panel has an open bottom and is not closed.

[0010] In a preferred embodiment, the cross-sectional profile of the rainproof panel includes any one of the following: circular, near-circular, elliptical, or near-elliptical.

[0011] In a preferred embodiment, the third connecting component includes a bolt, and the first connecting component or the second connecting component is provided with an adjustment hole that mates with the bolt.

[0012] In a preferred embodiment, the adjustment hole extends along the predetermined direction, and the length of the adjustment hole in the predetermined direction is within 50 mm.

[0013] In a preferred embodiment, the rainproof plate is a rainproof colored plate, and the thickness of the rainproof colored plate is at least 5 mm.

[0014] In a preferred embodiment, the outer periphery of the rainproof color plate is further provided with steel wires wound around the circumference of the rainproof color plate.

[0015] In a preferred embodiment, the first connecting component includes a channel steel, one side of which is welded to the outer wall of the pipe body.

[0016] In a preferred embodiment, the second connecting component includes a pressure strip, the pressure strip comprising a first portion for fixing to the rainproof plate and a second portion for movably engaging with the channel steel via a third connecting component.

[0017] In a preferred embodiment, the first portion of the pressure strip is fixed to the rainproof plate by self-tapping screws.

[0018] A converter gas pipeline, the converter gas pipeline including a pipe body and a rainproof and heat-insulating structure for the converter gas pipeline as described above, the rainproof and heat-insulating structure being installed on the periphery of the pipe body.

[0019] The technical solution of this utility model has the following significant beneficial effects:

[0020] This invention incorporates a rainproof and heat-insulating structure on the outer wall of a raw coal gas pipeline. During rainfall, this effectively isolates the gas pipeline from direct heat exchange with rainwater, significantly enhancing the pipeline's rainproof capability and preventing excessive impact from rainwater on its cooling. Furthermore, the predetermined gap between the rainproof plate and the outer wall of the pipe body, achieved through connecting components, ensures normal heat dissipation of the pipe body, thus not affecting the pipeline's heat dissipation function. Additionally, the coordinated use of a first, second, and third connecting component ensures the rainproof plate is radially fixed relative to the pipe body. When the gas pipeline experiences axial thermal displacement, the rainproof plate allows for axial movement relative to the gas pipeline within a predetermined displacement range, preventing the impact of axial thermal expansion of the converter gas pipeline on the rainproof plate. Specifically, this prevents the rainproof plate from being subjected to external forces and rotating with the gas pipeline.

[0021] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, embodiments of the present invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0022] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0023] Figure 1 This is a front view of a rainproof and heat-insulating structure for a converter gas pipeline provided in the embodiments of this application;

[0024] Figure 2 This is a side view of a rainproof and heat-insulating structure for a converter gas pipeline provided in the embodiments of this application;

[0025] Figure 3 Figure 1 is a schematic diagram of the connection relationship between the channel steel, the pressing strip and the rainproof plate in a rainproof and heat preservation structure of a converter gas pipeline provided in an embodiment of the present application.

[0026] Figure 4 Figure 2 is a schematic diagram of the rainproof plate in a rainproof and heat preservation structure of a converter gas pipeline provided in an embodiment of the present application.

[0027] Reference signs of the present application:

[0028] 1. Steel wire;

[0029] 2. Rainproof plate;

[0030] 3. Pressing strip;

[0031] 4. Self-tapping screw;

[0032] 5. Reinforcing rib;

[0033] 6. Pipe body;

[0034] 7. Channel steel;

[0035] 8. Bolt. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described in detail below in combination with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and are not used to limit the scope of the present application. After reading the present application, various equivalent modifications of the present application made by those skilled in the art all fall within the scope defined by the appended claims.

[0037] It should be noted that when an element is referred to as "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] Patent No. 201410759480.X, named "converter once flue gas dry purification and recovery device and its process", the process provided by the process is: the flue gas purified by the electric dust collector is first introduced into the coal gas cooler for cooling and washing, and then recovered and dispersed through the recovery cup valve and the dispersion cup valve of the switching station respectively. However, compared with the conventional process flow, the above process flow only moves the coal gas cooler forward, and does not change the cooling form of the whole system.

[0040] The evaporative cooler, raw gas pipeline and coal gas cooler in the dry dust removal system play a major role in cooling. The flue gas temperature is reduced to about 250℃ at the outlet of the evaporative cooler, and is reduced to about 150℃ along the pipeline before entering the electric dust collector. With the change of ambient temperature, the temperature drop of the raw gas pipeline is different. Under normal circumstances, the outlet temperature of the evaporative cooling is adjusted by water spraying to ensure the stable inlet temperature of the electric dust collector.

[0041] However, in actual engineering, there is more rainfall in the south, and there are extreme weather conditions. The raw gas pipeline is cooled seriously, and the evaporative cooling cannot effectively adjust the temperature to meet the use of the electric dust collector, resulting in the reduction of the service life of the pipeline and equipment and causing production failure.

[0042] The utility model provides a converter gas pipeline and its rainproof heat preservation structure, can effectively promote the rainproof ability of the converter gas pipeline under the condition of not affecting the heat dissipation of the converter gas pipeline, avoid that rainwater has too great influence on the cooling of the converter gas pipeline, in addition, the rainproof heat preservation structure is not affected by the thermal expansion and cold shrinkage of the converter gas.

[0043] Please refer to Figure 1 、 Figure 2 and Figure 3 , a rainproof heat preservation structure of a converter gas pipeline is provided in the embodiment of the present application. The converter gas pipeline comprises a pipe body 6 extending along a predetermined direction. The rainproof heat preservation structure of the converter gas pipeline can comprise: a first connecting component fixed on the outer wall of the pipe body 6, which extends along the predetermined direction as a whole, and comprises a plurality of first connecting components distributed along the circumferential direction of the pipe body 6; a rainproof plate 2, which is sleeved on the periphery of the pipe body 6 with a predetermined gap; and a second connecting component fixed on the inner surface of the rainproof plate 2, which comprises a plurality of second connecting components corresponding to the first connecting components. The second connecting component and the first connecting component are connected movably through a third connecting component. The rainproof plate 2 is fixed radially relative to the pipe body 6 and has a predetermined displacement size in the axial direction.

[0044] The utility model discloses a set of rainproof heat preservation structure is arranged on the outer wall of the raw coal gas pipeline, effectively separates the direct heat exchange of the gas pipeline and rainwater in the process of raining, can effectively promote the rainproof ability of the converter gas pipeline, avoids the excessive influence of the cooling of rainwater to the converter gas pipeline, besides, since the predetermined gap is formed between the outer wall of the rainproof board 2 and the pipe body 6 through the connecting part, can guarantee that the pipe body 6 normally radiates, namely does not influence the function of the converter gas pipeline heat dissipation.

[0045] As Figure 4 The utility model discloses a set of rainproof heat preservation structure is arranged on the outer wall of the raw coal gas pipeline, effectively separates the direct heat exchange of the gas pipeline and rainwater in the process of raining, can effectively promote the rainproof ability of the converter gas pipeline, avoids the excessive influence of the cooling of rainwater to the converter gas pipeline, besides, since the predetermined gap is formed between the outer wall of the rainproof board 2 and the pipe body 6 through the connecting part, can guarantee that the pipe body 6 normally radiates, namely does not influence the function of the converter gas pipeline heat dissipation.

[0046] In an embodiment, the rainproof board 2 is a rainproof color plate, and the thickness of the rainproof color plate is at least 5 mm or more. In the embodiment, the rainproof board 2 can be selected from a corrosion-resistant plate with a certain thickness. Specifically, the rainproof board 2 can be selected from a rainproof color plate with a thickness of at least 5 mm. The rainproof color plate with a thickness of 5 mm or more can have better strength and better corrosion resistance, thereby meeting the use requirements of the rainproof heat preservation structure.

[0047] In addition, in order to ensure the sealing effect, the adjacent two rainproof color plates are installed in a staggered manner, and there is an overlapping area. The rainproof color plate cannot be reverse water lapping, and the sealing adhesive needs to be used for bonding at the possible water inlet position.

[0048] In an embodiment, the cross-sectional profile of the rainproof board 2 can include any one of the following: a circular shape, a circular-like shape, an elliptical shape, or an elliptical-like shape.

[0049] In the embodiment, the cross-sectional profile of the rainproof board 2 can be a circular shape, a circular-like shape, an elliptical shape, or an elliptical-like shape. When the cross-sectional profile of the rainproof board 2 is in the above structure, the rainproof and cooling structure can be less affected by external forces, such as external wind force, thereby improving the resistance to strong wind, so as to adapt to the coastal areas with multiple typhoons, thereby ensuring the long-term stable operation of the entire system.

[0050] Among them, relative to the circular or circular configuration, the elliptical or elliptical configuration can be distinguished by adjusting the sum of the radial dimensions of the first connecting component and the second connecting component, thereby forming an elliptical or elliptical configuration. For example, the sum of the radial dimensions of the first connecting component and the second connecting component in the horizontal direction can be set to be smaller than other positions.

[0051] In a preferred embodiment, the outer periphery of the rainproof color plate is further provided with a steel wire 1 wound in the circumferential direction of the rainproof color plate. By providing the steel wire 1, the rainproof color plate can be reliably constrained on the predetermined contour in the circumferential direction. The steel wire 1 can be distributed at a predetermined distance along the extension direction of the pipe body 6. The predetermined distance can be different according to the diameter of the pipe body 6 and the like, and the present application does not make a unique numerical limitation here. In addition, the steel wire 1 in the embodiment of the present application can also be replaced by other limiting forms capable of circumferentially constraining the rainproof color plate.

[0052] Generally, the converter gas pipeline is heated and expands, causing the entire gas pipeline to axially displace.

[0053] In the embodiment, by cooperating the first connecting component, the second connecting component and the third connecting component, the rainproof plate 2 can be fixed radially relative to the pipe body 6. In addition, when the gas pipeline axially displaces, the rainproof plate 2 can allow the gas pipeline to axially move relative to the rainproof plate 2 within a predetermined displacement size range in the axial direction, thereby avoiding the influence of the axial thermal expansion of the converter gas pipeline on the rainproof plate 2, and specifically preventing the rainproof plate 2 from being affected by external force and rotating with the gas pipeline. The predetermined displacement size range can be within 50 mm. Of course, the predetermined displacement size can be adaptively set according to the actual pipeline deformation requirement, and the present application does not make a specific numerical limitation here.

[0054] In an embodiment, the first connecting component can include a channel steel 7, one side of the channel steel 7 can be fixed on the outer wall of the pipe body 6, and the fixing mode can be welding or the like. The second connecting component can include a pressing strip 3, which can be first fixed on the rainproof plate 2. The fixing mode of the pressing strip 3 and the rainproof plate 2 can adopt a screw connection mode.

[0055] Among them, the third connecting component movably connects between the second connecting component and the first connecting component, which can be achieved by cooperating a bolt 8 and an adjusting hole.

[0056] Among them, the third connecting component can include a bolt 8, and the first connecting component or the second connecting component is provided with an adjusting hole matched with the bolt 8.

[0057] Specifically, the adjusting hole extends along the predetermined direction, and a length of the adjusting hole in the predetermined direction is within 50 mm.

[0058] For example, the adjusting hole can be an elongated hole extending along the axial direction of the pipe body 6. Taking the case of the adjusting hole being an elongated hole provided on the channel steel 7 as an example, the pressing strip 3 can be provided with a mounting hole matched with the bolt 8, the bolt 8 is inserted into the elongated hole through the mounting hole, and when the axial thermal displacement occurs during the use of the converter gas pipeline, the bolt 8 can be moved in the elongated hole, so that the spatial position of the rainproof and heat preservation structure is relatively fixed.

[0059] In a specific embodiment, the pressing strip 3 includes a first part for fixing the rainproof plate 2 and a second part for movably cooperating with the channel steel 7 through a third connecting component.

[0060] Specifically, the cross section of the pressing strip 3 can be L-shaped, and the first part and the second part are two straight edges perpendicular to each other. For example, the pressing strip 3 can be an angle steel of L30x3. In order to ensure that the rainproof plate 2 can be stably and reliably fixed, the pressing strip 3 can be arranged along the circumference of the rainproof plate 2. Specifically, the arrangement density of the pressing strip 3 can be determined according to the diameter of the pipe body 6, the performance requirements of the current application environment, etc.

[0061] The first part of the pressing strip 3 is fixed to the rainproof plate 2 by means of self-tapping screw 4. When the self-tapping screw 4 is used, it is convenient for on-site operation and use, and of course other connection methods can also be used.

[0062] A converter gas pipeline, the converter gas pipeline includes a pipe body 6 and the rainproof and heat preservation structure of the converter gas pipeline described above, the rainproof and heat preservation structure is used for being arranged on the periphery of the pipe body 6.

[0063] In the embodiments of the present application, a converter gas pipeline is also provided, which includes the rainproof and heat preservation structure of the converter gas pipeline described above. The converter gas pipeline can achieve the technical effects realized by the rainproof and heat preservation structure of the converter gas pipeline by arranging the rainproof and heat preservation structure of the converter gas pipeline. Specifically, please refer to the specific description of the above embodiments, which will not be repeated here.

[0064] It should be noted that in the description of the present application, the terms "first", "second" and the like are only used for the purpose of description and distinguishing similar objects, and there is no sequence between them, nor can it be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0065] The above-mentioned various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0066] The above is only several embodiments of the present application, although the embodiments disclosed by the present application are as above, but the content is only the embodiment adopted for the purpose of facilitating the understanding of the present application, and is not used to limit the present application. Any person skilled in the art of the present application, without departing from the spirit and scope of the present application disclosed, can make any modification and change in the form and details of the embodiment, but the patent protection scope of the present application still needs to be limited by the scope defined by the appended claims.

Claims

1. A rainproof and heat-insulating structure for converter gas pipelines, characterized in that, The converter gas pipeline includes a pipe body extending along a predetermined direction, and the rainproof and heat-insulating structure of the converter gas pipeline includes: A first connecting component is fixed to the outer wall of the tube body. The first connecting component extends as a whole along the predetermined direction. The first connecting component includes a plurality of first connecting components, which are distributed at intervals along the circumferential direction of the tube body. A rainproof plate, wherein the rainproof plate is sleeved around the outer periphery of the pipe body at predetermined intervals; The second connecting component is fixed to the inner surface of the rainproof plate. The second connecting component includes multiple components, and the second connecting component is correspondingly arranged with the first connecting component. The second connecting component is movably connected to the first connecting component via a third connecting component. The rainproof plate is radially fixed relative to the pipe body and has a predetermined displacement dimension in the axial direction.

2. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 1, characterized in that, The cross-section of the rainproof panel has an open bottom and is not closed.

3. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 2, characterized in that, The cross-sectional profile of the rainproof panel includes any one of the following: circular, near-circular, elliptical, or near-elliptical.

4. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 1, characterized in that, The third connecting component includes a bolt, and the first connecting component or the second connecting component is provided with an adjustment hole that mates with the bolt.

5. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 4, characterized in that, The adjustment hole extends along the predetermined direction, and the length of the adjustment hole in the predetermined direction is within 50 mm.

6. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 1, characterized in that, The rainproof board is a rainproof color plate, and the thickness of the rainproof color plate is at least 5 mm.

7. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 6, characterized in that, The outer periphery of the rainproof color plate is also provided with steel wires wrapped around the circumference of the rainproof color plate.

8. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 1, characterized in that, The first connecting component includes a channel steel, one side of which is welded to the outer wall of the pipe body.

9. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 8, characterized in that, The second connecting component includes a pressure strip, which includes a first part for fixing to the rainproof plate and a second part for movably engaging with the channel steel via a third connecting component.

10. The rainproof and heat-insulating structure for converter gas pipelines as described in claim 9, characterized in that, The first part of the pressure strip is fixed to the rainproof plate by self-tapping screws.

11. A converter gas pipeline, characterized in that, The converter gas pipeline includes a pipe body and a rainproof and heat-insulating structure for the converter gas pipeline according to any one of claims 1 to 10, wherein the rainproof and heat-insulating structure is used to be installed on the periphery of the pipe body.

Images