Novel oil gathering type exhaust pipe of large unit

Abstract

The utility model relates to a novel oil gathering type exhaust pipe for a large unit, which comprises an exhaust pipe body, a connecting flange fixedly connected to the bottom end of the exhaust pipe body, a thick pipe section arranged in the middle of the exhaust pipe body, an oil gathering steel wire filled in the thick pipe section, a threaded section arranged at the top end of the exhaust pipe body, and an oil receiving funnel in threaded connection with the threaded section. A plurality of lower connecting blocks are arranged on the edge of the oil receiving funnel, an oil condensing outer cover is arranged on the upper side of the oil receiving funnel and is cylindrical, the diameter of the oil condensing outer cover is smaller than that of the edge of an opening of the oil receiving funnel, a plurality of upper connecting blocks are arranged on the edge of the lower end of the oil condensing outer cover, and the upper connecting blocks are fixedly connected with the lower connecting blocks through connecting rods. An exhaust gap is reserved between the edge of the lower end of the oil condensing outer cover and the edge of an opening of the oil receiving funnel, the top wall of an inner cavity of the oil condensing outer cover is in threaded connection with an oil condensing screen drum, and a plurality of vent holes are formed in the side wall of the oil condensing screen drum. The oil content of exhausted gas can be reduced, so that oil stains are prevented from being gathered around a unit, and environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pipes, in particular to a new type of oil-gathering exhaust pipe for a large unit. Background Art

[0002] The working principle of oil refining equipment is to separate crude oil into different types of petroleum products. During the oil refining process, impurities, sulfides, nitrides and other chemicals in crude oil are removed through different physical and chemical methods to obtain purer petroleum products.

[0003] The main process of oil refining equipment includes the following stages:

[0004] 1. Homogenization stage: The crude oil is heated and stirred in the homogenization tank to reach a uniform temperature and homogenized state; 2. Separation stage: The crude oil is separated into different types of oil products, including gasoline, diesel, kerosene, etc. through the distillation process; 3. Processing stage: The oil products are treated during the processing, including catalytic reforming, cracking, hydrogenation and desulfurization to improve the quality and output of the oil products; 4. Treatment stage: Wastewater, waste gas and solid waste are treated by using different equipment to reduce environmental pollution.

[0005] In the prior art, the gas discharged from the exhaust pipe of the bearing box of a large unit of an oil refining equipment has a large oil content, which causes serious accumulation of oil dirt around the unit and seriously pollutes the surrounding environment. Utility Model Content

[0006] The utility model aims to provide a novel oil-collecting exhaust pipe for a large-scale unit, which can reduce the oil content of the exhausted gas, thereby preventing oil pollution from gathering around the unit and avoiding environmental pollution.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A new type of oil-collecting exhaust pipe for a large unit includes an exhaust pipe body, a connecting flange is fixedly connected to the bottom end of the exhaust pipe body, a thick pipe section is arranged in the middle of the exhaust pipe body, the thick pipe section is filled with oil-collecting steel wire, a threaded section is arranged at the top of the exhaust pipe body, an oil receiving funnel is threadedly connected to the threaded section, a plurality of lower connecting blocks are arranged at the edge of the oil receiving funnel, an oil condensing cover is arranged on the upper side of the oil receiving funnel, the oil condensing cover is cylindrical, the diameter of the oil condensing cover is smaller than the diameter of the opening edge of the oil receiving funnel, and the lower end edge of the oil condensing cover is arranged A plurality of upper connecting blocks are fixedly connected with the lower connecting blocks by connecting rods, so that an exhaust gap is left between the lower end edge of the condensed oil outer cover and the opening edge of the oil receiving funnel, the inner cavity top wall of the condensed oil outer cover is threadedly connected with a condensed oil screen cylinder, the side wall of the condensed oil screen cylinder is provided with a plurality of ventilation holes, the ventilation holes are evenly distributed in an array, the diameter of the exhaust pipe body is smaller than that of the condensed oil screen cylinder, the upper end of the exhaust pipe body is located in the condensed oil screen cylinder, the threaded section is provided with a plurality of oil return holes, and the axial position of the oil return holes corresponds to the bottom of the inner wall of the oil receiving funnel.

[0009] Specifically, an axial flange is provided on the inner cavity top wall of the condensed oil cover, a thread is provided on the outer wall of the axial flange, a thread is provided on the top inner wall of the condensed oil cover, and the axial flange is threadedly connected to the top inner wall of the condensed oil cover.

[0010] Specifically, the lower opening edge of the condensate screen cylinder exceeds the lower opening edge of the condensate outer cover.

[0011] Specifically, the ratio of the inner diameter of the condensate screen cylinder to the inner diameter of the condensate outer cover is 0.5-0.8.

[0012] Specifically, the diameter of the vent hole is 4 mm-8 mm.

[0013] Specifically, the diameter of the threaded section is smaller than the diameter of the exhaust pipe body, so that a shaft shoulder is formed at the lower end of the threaded section, and the lower end opening of the oil receiving funnel abuts against the shaft shoulder.

[0014] Specifically, the threaded section is provided with 6-10 oil return holes, and the oil return holes are evenly distributed along the circumferential direction.

[0015] Specifically, the ratio of the inner diameter of the thick pipe section to the main inner diameter of the exhaust pipe body is 1.8-2.1.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a novel oil-collecting exhaust pipe for large-scale units, which can recover the oil in the gas twice by arranging a thick pipe section, an oil-condensing screen cylinder and an oil-condensing outer cover, thereby greatly reducing the oil content of the exhaust gas, thereby avoiding the accumulation of oil pollution around the unit and avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional view of the new oil-collecting exhaust pipe of a large unit;

[0020] Figure 2 for Figure 1 A partial view of

[0021] Figure 3 It is a cutaway view of a new type of oil-collecting exhaust pipe for a large unit;

[0022] Figure 4 for Figure 3 A partial view of the .

[0023] In the figure:

[0024] 1. Exhaust pipe body; 11. Connecting flange; 12. Thick pipe section; 13. Threaded section; 131. Oil return hole; 132. Shaft shoulder;

[0025] 2. Oil funnel; 21. Lower connecting block;

[0026] 3. Oil condensation cover; 31. Upper connecting block; 32. Exhaust gap; 33. Axial flange;

[0027] 4. Oil condensate screen cylinder; 41. Air vent. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] See Figures 1 to 4 A new type of oil-accumulating exhaust pipe for a large unit includes an exhaust pipe body 1, and a connecting flange 11 is fixedly connected to the bottom end of the exhaust pipe body 1. A thick pipe section 12 is provided in the middle of the exhaust pipe body 1, and the thick pipe section 12 is filled with oil-accumulating steel wire (not shown).

[0030] The top of the exhaust pipe body 1 is provided with a threaded section 13, and the threaded section 13 is threadedly connected with the oil receiving funnel 2, and a plurality of lower connecting blocks 21 are provided at the edge of the oil receiving funnel 2. An oil condensation cover 3 is provided on the upper side of the oil receiving funnel 2, and the oil condensation cover 3 is cylindrical, and the diameter of the oil condensation cover 3 is smaller than the diameter of the opening edge of the oil receiving funnel 2. A plurality of upper connecting blocks 31 are provided at the lower end edge of the oil condensation cover 3, and the upper connecting blocks 31 are fixedly connected to the lower connecting blocks 21 by connecting rods (not shown in the figure), so that an exhaust gap 32 is left between the lower end edge of the oil condensation cover 3 and the opening edge of the oil receiving funnel 2.

[0031] The top wall of the inner cavity of the condensed oil cover 3 is threadedly connected with a condensed oil screen cylinder 4, and the side wall of the condensed oil screen cylinder 4 is provided with a plurality of vent holes 41, and the vent holes 41 are evenly distributed in an array. The diameter of the exhaust pipe body 1 is smaller than that of the condensed oil screen cylinder 4, and the upper end of the exhaust pipe body 1 is located in the condensed oil screen cylinder 4. The threaded section 13 is provided with a plurality of oil return holes 131, and the axial position of the oil return holes 131 corresponds to the bottom of the inner wall of the oil receiving funnel 2.

[0032] Specifically, the inner cavity top wall of the condensing oil cover 3 is provided with an axial flange 33 , the outer wall of the axial flange 33 is provided with threads, the top inner wall of the condensing oil cover 3 is provided with threads, and the axial flange 33 is threadedly connected to the top inner wall of the condensing oil cover 3 .

[0033] Specifically, the lower opening edge of the condensate screen cylinder 4 exceeds the lower opening edge of the condensate outer cover 3 .

[0034] Specifically, the ratio of the inner diameter of the condensate screen cylinder 4 to the inner diameter of the condensate outer cover 3 is 0.5-0.8.

[0035] Specifically, the diameter of the vent hole 41 is 4 mm-8 mm.

[0036] Specifically, the outer wall diameter of the threaded section 13 is smaller than the outer wall diameter of the main body of the exhaust pipe body 1 , so that a shoulder 132 is formed at the lower end of the threaded section 13 , and the lower end opening of the oil receiving funnel 2 abuts against the shoulder 132 .

[0037] Specifically, the threaded section 13 is provided with 6-10 oil return holes 131 , and the oil return holes 131 are evenly distributed along the circumferential direction.

[0038] Specifically, the ratio of the inner diameter of the thick pipe section 12 to the inner diameter of the main body of the exhaust pipe body 1 is 1.8-2.1.

[0039] The working principle of the new oil-collecting exhaust pipe of the utility model for large-scale units is as follows:

[0040] The connecting flange 11 is installed at the exhaust port (not shown) of the bearing box of the large unit of the oil refining equipment, so that the exhaust pipe body 1 is aligned with the exhaust port. When the oil-containing gas is discharged into the exhaust pipe body 1 through the exhaust port, the oil-containing gas first passes through the thick pipe section 12. The inner diameter of the thick pipe section 12 is larger than the inner diameter of the main body of the exhaust pipe body 1, so that the air flow velocity of the passage is suddenly reduced. At the same time, the thick pipe section 12 is filled with oil-collecting steel wire (not shown), so that the oil in the gas is condensed on the surface of the oil-collecting steel wire, and then flows back to the bearing box, so as to recover the oil in the gas.

[0041] After passing through the thick pipe section 12, the gas is discharged through the upper end of the exhaust pipe body 1. Since the diameter of the exhaust pipe body 1 is smaller than the condensate screen cylinder 4, and the upper end of the exhaust pipe body 1 is in the condensate screen cylinder 4, the discharged gas enters the condensate screen cylinder 4 and is discharged into the condensate outer cover 3 through the vents 41. The diameter of the vents 41 is 4mm-8mm, and the vents 41 are all over the condensate screen cylinder 4, so that the contact area between the gas and the condensate screen cylinder 4 is greatly increased, so that the remaining oil in the gas is secondary condensed on the inner and outer wall surfaces of the condensate screen cylinder 4, and then drips into the oil receiving funnel 2.

[0042] The gas that passes through the vent hole 41 and enters the oil condensing cover 3 is discharged through the exhaust gap 32. At this time, the remaining oil in the gas has been greatly reduced, and a small amount of oil in the gas is condensed on the inner wall of the oil condensing cover 3, and then drips into the oil receiving funnel 2. The oil dripping into the oil receiving funnel 2 flows into the exhaust pipe body 1 through the oil return hole 131, realizing the secondary recovery of the oil in the gas.

[0043] The utility model discloses a novel oil-collecting exhaust pipe for a large-scale unit, which can recover the oil in the gas twice by arranging a thick pipe section 12, an oil condensing screen cylinder 4 and an oil condensing outer cover 3, thereby greatly reducing the oil content of the exhaust gas, thereby avoiding the accumulation of oil pollution around the unit and avoiding environmental pollution.

[0044] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new type of oil-collecting exhaust pipe for large units, characterized by: The cam is provided with a threaded section, and the threaded section is threadedly connected to an oil collecting funnel. A plurality of lower connecting blocks are provided at the edge of the oil collecting funnel. An oil condensing cover is provided on the upper side of the oil collecting funnel. The oil condensing cover is cylindrical, and a diameter of the oil condensing cover is smaller than a diameter of an opening edge of the oil collecting funnel. A plurality of upper connecting blocks are provided at the lower end edge of the oil condensing cover. The upper connecting blocks and the lower connecting blocks are fixedly connected by connecting rods, so that an exhaust gap is left between the lower end edge of the oil condensing cover and the opening edge of the oil collecting funnel. An oil condensing screen cylinder is threadedly connected to the top wall of the inner cavity of the oil condensing cover. A plurality of vents are provided on the side wall of the oil condensing screen cylinder. The vents are evenly distributed in an array. The diameter of the exhaust pipe body is smaller than that of the oil condensing screen cylinder. The upper end of the exhaust pipe body is located in the oil condensing screen cylinder. A plurality of oil return holes are provided on the threaded section. The axial position of the oil return holes corresponds to the bottom of the inner wall of the oil collecting funnel.

2. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized in that: The inner cavity top wall of the condensed oil cover is provided with an axial flange, the outer wall of the axial flange is provided with threads, the top inner wall of the condensed oil cover is provided with threads, and the axial flange is threadedly connected with the top inner wall of the condensed oil cover.

3. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized in that: The lower opening edge of the condensate screen cylinder exceeds the lower opening edge of the condensate outer cover.

4. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized in that: The ratio of the inner diameter of the condensate screen cylinder to the inner diameter of the condensate outer cover is 0.5-0.

8.

5. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized by: The diameter of the vent hole is 4mm-8mm.

6. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized by: The diameter of the threaded section is smaller than the diameter of the exhaust pipe body, so that a shaft shoulder is formed at the lower end of the threaded section, and the lower end opening of the oil receiving funnel abuts against the shaft shoulder.

7. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized by: The threaded section is provided with 6-10 oil return holes, which are evenly distributed along the circumference.

8. The new type of oil-collecting exhaust pipe for large units according to claim 1 is characterized by: The ratio of the inner diameter of the thick pipe section to the main inner diameter of the exhaust pipe body is 1.8-2.1.

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