Pipeline flame arrester based on liquid petroleum

Abstract

The utility model discloses a pipeline flame arrester based on liquid petroleum, which comprises a flame arrester body, the two feeding ends of the flame arrester body are axially provided with access holes communicated with the interior of the flame arrester body, the upper access hole and the lower access hole are respectively connected with a first cover plate and a second cover plate, and the bottom surface of the first cover plate is provided with a first supporting piece; a second supporting piece is arranged on the top face of the second cover plate, a supporting ring is jointly connected between the second supporting piece and the first supporting piece in an abutting mode, a corrugated plate is concentrically fixed in the supporting ring, the upper face and the lower face of the corrugated plate are each fixedly provided with two supporting blocks in mirror symmetry, and the supporting ring is movably connected into the flame arrester body. The corrugated plate in the flame arrester body can be conveniently detached and cleaned, the whole flame arrester body does not need to be detached from a pipeline, then the corrugated plate in the flame arrester body does not need to be detached for cleaning, and therefore the cleaning efficiency of the corrugated plate in the flame arrester body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame arresters, in particular to a pipeline flame arrester based on liquid petroleum. Background Art

[0002] Pipeline flame arresters are widely used in oil and gas pipelines, vent flares, and fixed-roof storage tanks for various oil products, such as aromatics and sulfur, or other chemical materials in oil fields. Their primary function is to allow the passage of flammable and explosive gases while preventing external flame flashback. Suitable media include oil, gas, natural gas, and fuel gas. Currently, straight-through pipeline flame arresters are used, and according to relevant national regulations, the flame arrester core must be cleaned at least monthly.

[0003] When cleaning the corrugated plate, the flame arrester body needs to be removed. If it is difficult to remove the pipeline due to ultra-high venting torches, a crane is also required. If the road environment and other conditions do not allow the use of cranes and other supporting equipment, the flame arrester cannot be cleaned normally. Conventional cleaning is labor-intensive, has high safety risks, and is extremely inefficient. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a pipeline flame arrester based on liquid petroleum.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a pipeline flame arrester based on liquid petroleum, comprising a flame arrester body, the outside of the flame arrester body being radially connected to an oil inlet pipe and an oil outlet pipe respectively, and both ends of the feeding of the flame arrester body being axially provided with inspection ports connected to the interior thereof, and the upper and lower inspection ports being connected to a first cover plate and a second cover plate respectively, the bottom surface of the first cover plate being provided with a first support member, the top surface of the second cover plate being provided with a second support member, a support ring being commonly abutted between the second support member and the first support member, a corrugated plate being concentrically fixed in the support ring, two mirror-symmetrical support blocks being fixed on the upper and lower surfaces of the corrugated plate, and the support ring being movably connected to the flame arrester body.

[0006] As a further description of the above technical solution: the height of the oil outlet pipe is higher than that of the oil inlet pipe, and the support ring is located between the oil inlet pipe and the oil outlet pipe, and two radially symmetrical guide grooves are axially opened on the inner wall of the flame arrester body, and a guide block is slidably connected in each of the guide grooves, and the guide block is fixedly connected to the support ring.

[0007] As a further description of the above technical solution: the first support member includes two arc-shaped long plates axially abutting against the top surface of the support ring, the arc-shaped long plates are movably connected to the bottom surface of the first cover plate, two radially symmetrical grooves are axially opened on the outer side of the first cover plate, the push plates are movably connected in the grooves, a through groove is opened in the grooves, the arc-shaped long plates extend into the through grooves and are vertically fixed to the push plates, an insert block is radially fixed to the inner side of the lower end of the arc-shaped long plates, and each side surface of the support block is horizontally penetrated by a slot adapted to the insert block.

[0008] As a further description of the above technical solution: two mirror-symmetrical sliding grooves are horizontally opened in the groove, a slider is slidably connected in each of the sliding grooves, the slider is fixedly connected to the push plate, and a spring is fixed between the sliding groove and the slider.

[0009] As a further description of the above technical solution: the top surface of the first cover plate is axially penetrated by a number of equidistant annular countersunk holes, and the end surface of the flame arrester body is axially provided with a number of threaded grooves adapted to the countersunk holes, and a bolt is movably sleeved in each of the countersunk holes, and the end of the bolt extends into the threaded groove.

[0010] As a further description of the above technical solution: the connection method between the second cover plate and the flame arrester body is the same as the connection method between the second cover plate and the flame arrester, the structure of the second support member is the same as the structure of the first support member, and is mirror-symmetrical up and down.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the existing technology, this pipeline flame arrester based on liquid petroleum has an inspection port on each of the upper and lower sides of the flame arrester body, and connects the first cover plate and the second cover plate by bolts at the two inspection ports, respectively. A first support member and a second support member are respectively provided in the first cover plate and the second cover plate, and the corrugated plate is abutted between the first support member and the second support member through a support ring, thereby facilitating the disassembly and cleaning of the corrugated plate in the flame arrester body, without the need to disassemble the entire flame arrester body from the pipeline and then disassemble the internal corrugated plate for cleaning, thereby improving the cleaning efficiency of the corrugated plate in the flame arrester body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a pipeline flame arrester based on liquid petroleum proposed in the present utility model;

[0014] Figure 2 This is a main cross-sectional view of the overall structure of a pipeline flame arrester based on liquid petroleum proposed in the present utility model;

[0015] Figure 3This is a side sectional view of the overall structure of a pipeline flame arrester based on liquid petroleum proposed in the present utility model;

[0016] Figure 4 This utility model proposes a pipeline flame arrester based on liquid petroleum Figure 2 A magnified view of the structure at point A;

[0017] Figure 5 This utility model proposes a pipeline flame arrester based on liquid petroleum Figure 3 A magnified view of the structure at B in the middle;

[0018] Figure 6 This utility model proposes a pipeline flame arrester based on liquid petroleum Figure 3 Enlarged view of the structure at point C in the middle.

[0019] Legend:

[0020] 1. Flame arrester body; 2. First cover plate; 3. Push plate; 4. Oil outlet pipe; 5. Second cover plate; 6. Oil inlet pipe; 7. Support ring; 8. Support block; 9. Arc-shaped long plate; 10. Insert block; 11. Corrugated plate; 12. Bolt; 13. Countersunk hole; 14. Threaded groove; 15. Guide groove; 16. Guide block; 17. Groove; 18. Slide groove; 19. Spring; 20. Through groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 6The utility model provides a pipeline flame arrester based on liquid petroleum: it includes a flame arrester body 1, the outside of the flame arrester body 1 is radially connected to the oil inlet pipe 6 and the oil outlet pipe 4, the feeding ends of the flame arrester body 1 are axially opened with inspection ports connected to the interior thereof, the upper and lower inspection ports are respectively connected to the first cover plate 2 and the second cover plate 5, the bottom surface of the first cover plate 2 is provided with a first support member, the top surface of the second cover plate 5 is provided with a second support member, the second support member and the first support member are jointly abutted with a support ring 7, a corrugated plate 11 is concentrically fixed in the support ring 7, two mirror-symmetrical support blocks 8 are fixed on the upper and lower surfaces of the corrugated plate 11, the support ring 7 is movably connected in the flame arrester body 1, the height of the oil outlet pipe 4 is higher than the height of the oil inlet pipe 6, and the support ring 7 is located between the oil inlet pipe 6 and the oil outlet pipe 4, the inner wall of the flame arrester body 1 is axially opened with two radially symmetrical guide grooves 15, each guide groove 15 is slidably connected to a guide block 16, and the guide block 16 is fixedly connected to the support ring 7;

[0023] The first support member includes two arc-shaped long plates 9 axially abutting against the top surface of the support ring 7, the arc-shaped long plates 9 are movably connected to the bottom surface of the first cover plate 2, and two radially symmetrical grooves 17 are axially opened on the outer side of the first cover plate 2, and the push plate 3 is movably connected in the groove 17. Two mirror-symmetrical slide grooves 18 are horizontally opened in the groove 17, and a slider is slidably connected in each slide groove 18. The slider is fixedly connected to the push plate 3, and a spring 19 is fixed between the slide groove 18 and the slider. A through groove 20 is opened in the groove 17, and the arc-shaped long plate 9 extends into the through groove 20 and is vertically fixed to the push plate 3. An insert block 10 is radially fixed to the inner side of the lower end of the arc-shaped long plate 9, and a slot adapted to the insert block 10 is horizontally passed through the side surface of each support block 8. The structure of the second support member is the same as that of the first support member, and is mirror-symmetrical up and down;

[0024] The top surface of the first cover plate 2 is axially penetrated by a number of equidistant annular countersunk holes 13, and the end surface of the flame arrester body 1 is axially provided with a number of threaded grooves 14 adapted to the countersunk holes 13. A bolt 12 is movably sleeved in each of the countersunk holes 13, and the end of the bolt 12 extends into the threaded groove 14. The connection method between the second cover plate 5 and the flame arrester body 1 is the same as the connection method between the second cover plate 5 and the flame arrester.

[0025] By providing an inspection port on each of the upper and lower sides of the flame arrester body 1, and connecting the first cover plate 2 and the second cover plate 5 at the two inspection ports by bolts 12, respectively, providing a first support member and a second support member in the first cover plate 2 and the second cover plate 5, respectively, and abutting the corrugated plate 11 between the first support member and the second support member through the support ring 7, it is convenient to disassemble and clean the corrugated plate 11 in the flame arrester body 1, without having to disassemble the entire flame arrester body 1 from the pipeline and then disassemble the internal corrugated plate 11 for cleaning, thereby improving the cleaning efficiency of the corrugated plate 11 in the flame arrester body 1;

[0026] Working principle: When the flame arrester body 1 is disassembled and cleaned from the top, first loosen the bolts 12 on the first cover plate 2 and remove the bolts 12, then press the two push plates 3 inward at the same time, and the two push plates 3 move radially toward the groove 17, so that the slider pushes the spring 19 to compress, and at the same time the two push plates 3 respectively drive the two arc-shaped long plates 9 to move relative to each other, so that the inserts 10 in the two arc-shaped long plates 9 are respectively inserted into the slots in the two support blocks 8 on the top surface of the corrugated plate 11, and then the first cover plate 2 is opened upward. When the first cover plate 2 is opened, the corrugated plate 1 inside the flame arrester will be pushed through the arc-shaped long plate 9 at its bottom. 1 is pulled out upward, and then the two push plates 3 are released, and the spring 19 in the compressed state is reset. When the spring 19 is reset, the push plate 3 and the arc-shaped long plate 9 are displaced in the opposite direction, so that the plug blocks 10 in the two arc-shaped long plates 9 are disengaged from the slots on the support block 8. Then the corrugated plate 11 can be cleaned. After the cleaning is completed, the cleaned corrugated plate 11 is clamped between the two arc-shaped long plates 9 again, and then the guide block 16 on the support ring 7 is aligned with the guide groove 15 in the flame arrester body 1 for installation. After installation to the bottom, the push plate 3 is released and the bolt 12 is installed on the first cover plate 2, thereby completing the disassembly from the top surface of the flame arrester body 1;

[0027] When removing the second cover plate 5 from the bottom, the same steps as removing the first cover plate 2 are adopted, and then the second cover plate 5 and the corrugated plate 11 are pulled downwards, and the corrugated plate 11 is cleaned. After cleaning, the corrugated plate 11 is installed back into the flame arrester body 1 from bottom to top.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipeline flame arrester based on liquid petroleum, comprising a flame arrester body (1), the exterior of the flame arrester body (1) being radially connected to an oil inlet pipe (6) and an oil outlet pipe (4), characterized in that: Both ends of the flame arrester body (1) are axially provided with inspection ports communicating with the interior thereof, and the upper and lower inspection ports are respectively connected to a first cover plate (2) and a second cover plate (5), a first support member is provided on the bottom surface of the first cover plate (2), and a second support member is provided on the top surface of the second cover plate (5), and a support ring (7) is abutted against the second support member and the first support member, a corrugated plate (11) is concentrically fixed in the support ring (7), and two mirror-symmetrical support blocks (8) are fixed on the upper and lower surfaces of the corrugated plate (11), and the support ring (7) is movably connected in the flame arrester body (1).

2. The liquid petroleum-based pipeline flame arrester according to claim 1, characterized in that: The height of the oil outlet pipe (4) is higher than that of the oil inlet pipe (6), and the support ring (7) is located between the oil inlet pipe (6) and the oil outlet pipe (4). Two radially symmetrical guide grooves (15) are axially provided on the inner wall of the flame arrester body (1), and a guide block (16) is slidably connected in each of the guide grooves (15). The guide block (16) is fixedly connected to the support ring (7).

3. The liquid petroleum-based pipeline flame arrester according to claim 1, characterized in that: The first support member includes two arc-shaped long plates (9) axially abutting against the top surface of the support ring (7), the arc-shaped long plates (9) are movably connected to the bottom surface of the first cover plate (2), and two radially symmetrical grooves (17) are axially opened on the outer side of the first cover plate (2), and the push plate (3) is movably connected in the grooves (17). A through groove (20) is opened in the grooves (17), and the arc-shaped long plates (9) extend into the through grooves (20) and are vertically fixed to the push plate (3). An insert block (10) is radially fixed to the inner side of the lower end of the arc-shaped long plate (9), and a slot adapted to the insert block (10) is horizontally passed through the side surface of each support block (8).

4. The liquid petroleum-based pipeline flame arrester according to claim 3, characterized in that: Two mirror-symmetrical sliding grooves (18) are horizontally provided in the groove (17), a slider is slidably connected in each of the sliding grooves (18), the slider is fixedly connected to the push plate (3), and a spring (19) is fixed between the sliding groove (18) and the slider.

5. The liquid petroleum-based pipeline flame arrester according to claim 1, characterized in that: The top surface of the first cover plate (2) is axially penetrated by a plurality of equidistant annularly distributed countersunk holes (13); the end surface of the flame arrester body (1) is axially provided with a plurality of thread grooves (14) adapted to the countersunk holes (13); a bolt (12) is movably sleeved in each of the countersunk holes (13), and the distal end of the bolt (12) extends into the thread groove (14).

6. The liquid petroleum-based pipeline flame arrester according to claim 1, characterized in that: The connection mode of the second cover plate (5) and the flame arrester body (1) is the same as the connection mode of the second cover plate (5) and the flame arrester, and the structure of the second support member is the same as the structure of the first support member, and is mirror-symmetrical up and down.

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