Damping structure of raw oil buffer tank for hydrocracking unit

Abstract

The utility model discloses a damping structure for a raw oil buffer tank of a hydrocracking unit, which comprises a tank body, a bearing seat and a wrapping damping plate, the wrapping damping plate is arranged at the middle end of the outer wall of the tank body and is connected with the tank body through a bolt, and a first bidirectional block is arranged at the left end of the front side of the wrapping damping plate and is connected with the wrapping damping plate through a bolt; a second bidirectional block is arranged at the right end of the front side of the wrapping damping plate and is connected with the wrapping damping plate through a bolt, a third bidirectional block is arranged at the right end of the rear side of the wrapping damping plate and is connected with the wrapping damping plate through a bolt, and a fourth bidirectional block is arranged at the left end of the rear side of the wrapping damping plate and is connected with the wrapping damping plate through a bolt; a second hydraulic shock absorber is arranged at the right end of the front side of the bearing seat, and a third hydraulic shock absorber is arranged at the right end of the rear side of the bearing seat, the hydrocracking device relates to the technical field of hydrocracking devices, shock transmission outside the tank body is reduced through the shock absorption structure, and transmission shock inside the buffer tank is relieved through the shock absorption structure.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrocracking devices, in particular to a shock absorbing structure of a raw oil buffer tank used for a hydrocracking device. Background Art

[0002] Hydrocracking is an improvement on catalytic cracking technology. Catalytic cracking under hydrogen conditions can inhibit the dehydrogenation condensation reaction during catalytic cracking and avoid the formation of coke. The operating conditions are pressure 6.5-13.5MPa and temperature 340-420℃. High-grade products without olefins can be obtained, and the liquid yield can be as high as 100% or more (due to the addition of hydrogen to the oil molecules). It is a process in the petrochemical industry, that is, during the oil refining process, at a higher pressure and temperature, hydrogen is used as a catalyst to cause heavy oil to undergo hydrogenation, cracking and isomerization reactions, and is converted into light oil (gasoline, kerosene, diesel or raw materials for catalytic cracking and cracking to produce olefins). It is usually completed by a hydrocracking unit. The hydrocracking unit is completed by many components and includes many types of equipment, such as a crude oil buffer tank. However, there are still many problems with the existing crude oil buffer tanks used in hydrocracking units when they are used.

[0003] The existing crude oil buffer tank used in the hydrocracking unit has the following problems when in use:

[0004] 1. The crude oil buffer tank will vibrate as a whole during operation. The distribution of external vibration is mainly vertical and horizontal impact, so there is a problem of continuous vibration affecting operation;

[0005] 2. At the same time, the crude oil buffer tank will vibrate in two main parts during operation. The internal crude oil will generate certain vibrations during transmission, and this part of the vibration will affect the buffer tank. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a shock absorbing structure for a crude oil buffer tank of a hydrocracking unit, which reduces the vibration transmission outside the tank body and alleviates the transmission vibration inside the buffer tank through the shock absorbing structure.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented through the following technical solutions: a shock absorbing structure for a crude oil buffer tank of a hydrocracking unit, comprising a tank body, a bearing seat and a wrapped shock absorbing plate, a wrapped shock absorbing plate is arranged at the middle end of the outer wall of the tank body and connected by bolts, a first two-way block is arranged at the left end of the front side of the wrapped shock absorbing plate and connected by bolts, a second two-way block is arranged at the right end of the front side of the wrapped shock absorbing plate and connected by bolts, a third two-way block is arranged at the right end of the rear side of the wrapped shock absorbing plate and connected by bolts, a fourth two-way block is arranged at the left end of the rear side of the wrapped shock absorbing plate and connected by bolts, a hydraulic shock absorber 1 is arranged at the left end of the front side of the bearing seat, a hydraulic shock absorber 2 is arranged at the right end of the front side of the bearing seat, a hydraulic shock absorber 3 is arranged at the right end of the rear side of the bearing seat, and a hydraulic shock absorber 4 is arranged at the left end of the rear side of the bearing seat;

[0010] A shock-absorbing rebound rod 1 is arranged at the top of the hydraulic shock absorber 1, and the top of the shock-absorbing rebound rod 1 is connected to the first two-way block by bolts. A shock-absorbing rebound rod 2 is arranged at the top of the hydraulic shock absorber 2, and the top of the shock-absorbing rebound rod 2 is connected to the second two-way block by bolts. A shock-absorbing rebound rod 3 is arranged at the top of the hydraulic shock absorber 3, and the top of the shock-absorbing rebound rod 3 is connected to the third two-way block by bolts. A shock-absorbing rebound rod 4 is arranged at the top of the hydraulic shock absorber 4, and the top of the shock-absorbing rebound rod 4 is connected to the fourth two-way block by bolts.

[0011] Preferably, a bearing seat is provided on the outer wall of the bottom of the tank body and connected by rivets, and a first layered plate is provided at the top of the inner wall of the tank body and connected by welding.

[0012] Preferably, a second layered plate is disposed at the middle end of the inner wall of the tank body and connected by welding, and a third layered plate is disposed at the bottom end of the inner wall of the tank body and connected by welding.

[0013] Preferably, a shock-absorbing buffer arc 1 is arranged at the middle end of the top of the first layered plate, and the shock-absorbing buffer arc 1 is in an outward concave shape.

[0014] Preferably, a second shock-absorbing buffer arc is disposed at the left end of the second layered plate and the right end of the second layered plate, and the second shock-absorbing buffer arc is in a concave shape.

[0015] Preferably, a shock-absorbing and buffering arc three is arranged at the middle end of the top of the third layered plate, and the shock-absorbing and buffering arc three is in a convex shape.

[0016] (III) Beneficial effects

[0017] The utility model provides a shock-absorbing structure for a raw oil buffer tank of a hydrocracking unit, which has the following beneficial effects:

[0018] (1) The shock-absorbing structure of the crude oil buffer tank for the hydrocracking unit is provided with a tank body, a bearing seat and a wrapped shock-absorbing plate. The wrapped shock-absorbing plate is deployed to resist the tank body as a whole. When vibration is transmitted, the wrapped shock-absorbing plate can evenly receive vibration. After the first two-way block, the second two-way block, the third two-way block and the fourth two-way block are connected by bolts, the upper and lower wrapping can provide two-way resistance support. When the first two-way block vibrates, the shock-absorbing rebound rod 1 can stably absorb energy and shrink and rebound under the support of the hydraulic shock absorber 1. When the second two-way block vibrates, the shock-absorbing rebound rod 2 can stably absorb energy and shrink and rebound under the support of the hydraulic shock absorber 2. When the third two-way block vibrates, the shock-absorbing rebound rod 3 can stably absorb energy and shrink and rebound under the support of the hydraulic shock absorber 3. When the fourth two-way block vibrates, the shock-absorbing rebound rod 4 can stably absorb energy and shrink and rebound under the support of the hydraulic shock absorber 4, thereby jointly reducing the external vibration transmission of the tank body. The relevant structural components cooperate with each other to reduce the external vibration transmission of the tank body through the shock-absorbing structure.

[0019] (2) The shock-absorbing structure of the crude oil buffer tank for the hydrocracking unit is provided with a tank body. When the crude oil is transmitted in the buffer tank, it will enter through the top connecting pipeline. Therefore, in order to reduce the internal vibration during transmission, the interior of the tank body is designed into several large areas, which are separated by deploying the first layer plate, the second layer plate and the third layer plate. When the crude oil is transmitted, it will contact the shock-absorbing buffer arc 1 and will be evenly dispersed to the first layer plate for transmission again. When the crude oil is transmitted and contacts the shock-absorbing buffer arc 2, it will continue to be transmitted through the middle end of the second layer plate. When the crude oil is transmitted and contacts the shock-absorbing buffer arc 3, it will continue to be transmitted through the third layer plate for transmission. It will form an accumulation at the bottom and wait for the operation to be pumped out. Therefore, through the layered design and step-by-step shock absorption, the relevant structural components work together, so the transmission vibration inside the buffer tank is alleviated by the shock-absorbing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structure diagram of the utility model;

[0021] Figure 2 This is a front cross-sectional view of the tank area of ​​the utility model;

[0022] Figure 3 This is a rear view of the overall structure of the utility model;

[0023] Figure 4 This is a top view of the structure of the area wrapped with the shock-absorbing plate of the utility model.

[0024] In the figure: 1. tank body; 2. bearing seat; 3. wrapped shock-absorbing plate; 4. first two-way block; 5. hydraulic shock absorber 1; 6. shock-absorbing rebound rod 1; 7. second two-way block; 8. hydraulic shock absorber 2; 9. shock-absorbing rebound rod 2; 10. third two-way block; 11. hydraulic shock absorber 3; 12. shock-absorbing rebound rod 3; 13. fourth two-way block; 14. hydraulic shock absorber 4; 15. shock-absorbing rebound rod 4; 16. first layered plate; 17. shock-absorbing buffer arc 1; 18. second layered plate; 19. shock-absorbing buffer arc 2; 20. third layered plate; 21. shock-absorbing buffer arc 3. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a shock-absorbing structure for a crude oil buffer tank of a hydrocracking unit, comprising a tank body 1, a bearing seat 2 and a wrapped shock-absorbing plate 3, wherein the wrapped shock-absorbing plate 3 is arranged at the middle end of the outer wall of the tank body 1 and connected by bolts, and the wrapped shock-absorbing plate 3 can evenly receive vibration during vibration transmission, a first two-way block 4 is arranged at the left end of the front side of the wrapped shock-absorbing plate 3 and connected by bolts, a second two-way block 7 is arranged at the right end of the front side of the wrapped shock-absorbing plate 3 and connected by bolts, and a third two-way block 10 is arranged at the right end of the rear side of the wrapped shock-absorbing plate 3 and connected by bolts A fourth bidirectional block 13 is provided at the left end of the rear side of the wrapped shock-absorbing plate 3 and is connected by bolts. After the first bidirectional block 4, the second bidirectional block 7, the third bidirectional block 10 and the fourth bidirectional block 13 distributed around the circle are connected by bolts, the upper and lower wrapping can provide bidirectional resistance support. A hydraulic shock absorber 1 5 is provided at the left end of the front side of the bearing seat 2, a hydraulic shock absorber 2 8 is provided at the right end of the front side of the bearing seat 2, a hydraulic shock absorber 3 11 is provided at the right end of the rear side of the bearing seat 2, and a hydraulic shock absorber 4 14 is provided at the left end of the rear side of the bearing seat 2. Hydraulic shock absorbers are deployed at all four corners, and the heavy-weight multi-hydraulic shock absorbers can provide stable support for the buffer tank;

[0027] A shock-absorbing rebound rod 16 is arranged at the top of the hydraulic shock absorber 15, and the top of the shock-absorbing rebound rod 16 is connected to the first two-way block 4 by bolts. A shock-absorbing rebound rod 29 is arranged at the top of the hydraulic shock absorber 28, and the top of the shock-absorbing rebound rod 29 is connected to the second two-way block 7 by bolts. A shock-absorbing rebound rod 3 12 is arranged at the top of the hydraulic shock absorber 3 11, and the top of the shock-absorbing rebound rod 3 12 is connected to the third two-way block 10 by bolts. A shock-absorbing rebound rod 4 15 is arranged at the top of the hydraulic shock absorber 4 14, and the top of the shock-absorbing rebound rod 4 15 is connected to the fourth two-way block 13 by bolts. The shock-absorbing rebound rod 16 can be arranged at the top of the hydraulic shock absorber 4 14. The shock absorber 1 5 can stably absorb energy, shrink and rebound under the support of the shock absorber 1, the shock absorber rebound rod 2 9 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber 2 8, the shock absorber rebound rod 3 12 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber 3 11, and the shock absorber rebound rod 4 15 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber 4 14, so as to jointly reduce the external vibration transmission of the tank body 1, wherein the multiple hydraulic shock absorbers and the shock absorber rebound rods are matching components and are all common products on the market, which can be customized by relevant manufacturers according to the specific size of the buffer tank, and the products are not limited to specific models.

[0028] A bearing seat 2 is provided on the outer wall at the bottom of the tank body 1 and is connected by rivets. A first layered plate 16 is provided at the top of the inner wall of the tank body 1 and is connected by welding. The tank body 1 area mainly obtains bottom mounting support through the bearing seat 2. The flatly deployed bearing seat 2 can support strong weight downward pressure for the top area components. The first layered plate 16 is mainly located at the top inside the tank body 1 to shorten the transmission distance, which can reduce the internal falling transmission contact vibration.

[0029] A second layered plate 18 is provided at the middle end of the inner wall of the tank body 1 and is connected by welding. A third layered plate 20 is provided at the bottom end of the inner wall of the tank body 1 and is connected by welding. The second layered plate 18 and the third layered plate 20 are also used for partitioning. The internal vibration is reduced through layered design and step-by-step shock absorption.

[0030] A shock-absorbing buffer arc 17 is arranged at the middle of the top of the first layered plate 16. The shock-absorbing buffer arc 17 is in an outward concave shape. When the crude oil is transmitted, it will contact the shock-absorbing buffer arc 17, and will be evenly dispersed around the first layered plate 16 for transmission again, thereby reducing vibration by shortening the stroke and smoothly contacting the arc.

[0031] Shock-absorbing buffer arc 19 is provided at the left end and the right end of the second layered plate 18. The shock-absorbing buffer arc 19 is concave in shape. When the crude oil transmission contacts the shock-absorbing buffer arc 19, it will continue to be transmitted through the middle end of the second layered plate 18, reducing vibration by shortening the stroke and smooth arc contact.

[0032] A shock-absorbing buffer arc 3 21 is arranged at the middle of the top of the third layered plate 20. The shock-absorbing buffer arc 3 21 is in the shape of a convex body. When the crude oil is transmitted and contacts the shock-absorbing buffer arc 3 21, it will continue to be transmitted through the third layered plate 20 for a circle, reducing vibration by shortening the stroke and smoothly contacting the arc.

[0033] Working principle: when the outside of the tank body 1 vibrates, the transmission of vibration is basically diffused downward or horizontally around, so the tank body 1 is resisted as a whole by deploying the wrapped shock-absorbing plate 3. When the vibration is transmitted, the wrapped shock-absorbing plate 3 can evenly receive the vibration, and the first two-way block 4, the second two-way block 7, the third two-way block 10 and the fourth two-way block 13 distributed around are connected by bolts, and the upper and lower wrapping can provide two-way resistance support. When the first two-way block 4 vibrates, the shock-absorbing rebound rod 1 6 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber 1 5. When the second two-way block 7 vibrates, the shock-absorbing rebound rod 2 9 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber 2 8. When the third two-way block 10 vibrates, the shock-absorbing rebound rod 3 12 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber 3 11. When the block 13 vibrates, the shock-absorbing rebound rod four 15 can stably absorb energy, shrink and rebound under the support of the hydraulic shock absorber four 14, thereby jointly reducing the external vibration transmission of the tank body 1. When the crude oil is transmitted in the buffer tank body 1, the interior of the tank body 1 is designed into several large areas, which are separated by deploying the first layer plate 16, the second layer plate 18 and the third layer plate 20. When the crude oil is transmitted, it will contact the shock-absorbing buffer arc one 17, and will be evenly dispersed to the first layer plate 16 for a circle and then transmitted again. When the crude oil is transmitted and contacts the shock-absorbing buffer arc two 19, it will continue to be transmitted through the middle end of the second layer plate 18. When the crude oil is transmitted and contacts the shock-absorbing buffer arc three 21, it will continue to be transmitted through the third layer plate 20 for a circle, and will form an accumulation at the bottom, waiting to be pumped out during operation. Therefore, the internal vibration is jointly reduced through layered design and step-by-step shock absorption.

[0034] The utility model includes: 1, tank body; 2, bearing seat; 3, wrapped shock-absorbing plate; 4, first two-way block; 5, hydraulic shock absorber 1; 6, shock-absorbing rebound rod 1; 7, second two-way block; 8, hydraulic shock absorber 2; 9, shock-absorbing rebound rod 2; 10, third two-way block; 11, hydraulic shock absorber 3; 12, shock-absorbing rebound rod 3; 13, fourth two-way block; 14, hydraulic shock absorber 4; 15, shock-absorbing rebound rod 4; 16, first layered plate; 17, shock-absorbing buffer arc 1; 18, second layered plate; 19, shock-absorbing buffer arc 2; 20, third layered plate; 21, shock-absorbing buffer arc 3. All components are universal standard parts or components known to those skilled in the art, and their structures and principles are The technical personnel in this field can learn from the technical manual or through conventional experimental methods that the problems solved by the utility model are: 1. The existing crude oil buffer tank for the hydrocracking unit has the problem that the entire tank body will vibrate during operation, and the distribution of external vibration is mainly vertical and lateral impact, so there is a problem of continuous vibration affecting operation; 2. At the same time, the crude oil buffer tank is mainly divided into two parts of vibration during operation, and a certain vibration will be generated during the internal crude oil transmission, and this part of the vibration will affect the buffer tank. The utility model combines the above-mentioned components with each other, reduces the vibration transmission outside the tank body through the shock-absorbing structure, and alleviates the transmission vibration inside the buffer tank through the shock-absorbing structure.

[0035] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shock absorbing structure for a feedstock oil buffer tank of a hydrocracking unit, characterized in that: It comprises a tank body (1), a bearing seat (2) and a wrapped shock-absorbing plate (3), wherein a wrapped shock-absorbing plate (3) is arranged at the middle end of the outer wall of the tank body (1) and connected by bolts, a first bidirectional block (4) is arranged at the left end of the front side of the wrapped shock-absorbing plate (3) and connected by bolts, a second bidirectional block (7) is arranged at the right end of the front side of the wrapped shock-absorbing plate (3) and connected by bolts, a third bidirectional block (10) is arranged at the right end of the rear side of the wrapped shock-absorbing plate (3) and connected by bolts, a fourth bidirectional block (13) is arranged at the left end of the rear side of the wrapped shock-absorbing plate (3) and connected by bolts, a hydraulic shock absorber 1 (5) is arranged at the left end of the front side of the bearing seat (2), a hydraulic shock absorber 2 (8) is arranged at the right end of the front side of the bearing seat (2), a hydraulic shock absorber 3 (11) is arranged at the right end of the rear side of the bearing seat (2), and a hydraulic shock absorber 4 (14) is arranged at the left end of the rear side of the bearing seat (2); A shock-absorbing rebound rod one (6) is arranged at the top end of the hydraulic shock absorber one (5), and the top end of the shock-absorbing rebound rod one (6) is connected to the first two-way block (4) by bolts; a shock-absorbing rebound rod two (9) is arranged at the top end of the hydraulic shock absorber two (8), and the top end of the shock-absorbing rebound rod two (9) is connected to the second two-way block (7) by bolts; a shock-absorbing rebound rod three (12) is arranged at the top end of the hydraulic shock absorber three (11), and the top end of the shock-absorbing rebound rod three (12) is connected to the third two-way block (10) by bolts; a shock-absorbing rebound rod four (15) is arranged at the top end of the hydraulic shock absorber four (14), and the top end of the shock-absorbing rebound rod four (15) is connected to the fourth two-way block (13) by bolts.

2. The shock absorbing structure of the feedstock oil buffer tank for the hydrocracking unit according to claim 1 is characterized in that: A bearing seat (2) is provided on the outer wall at the bottom of the tank body (1) and is connected by rivets, and a first layered plate (16) is provided at the top of the inner wall of the tank body (1) and is connected by welding.

3. The shock absorbing structure of the feedstock oil buffer tank for the hydrocracking unit according to claim 1, characterized in that: A second layered plate (18) is provided at the middle end of the inner wall of the tank body (1) and is connected by welding, and a third layered plate (20) is provided at the bottom end of the inner wall of the tank body (1) and is connected by welding.

4. The shock absorbing structure of the feedstock oil buffer tank for the hydrocracking unit according to claim 2 is characterized in that: A shock-absorbing buffer arc (17) is arranged at the middle end of the top of the first layered plate (16), and the shock-absorbing buffer arc (17) is in the shape of an outer concave body.

5. The shock absorbing structure of the feedstock oil buffer tank for the hydrocracking unit according to claim 3 is characterized in that: A second shock-absorbing buffer arc (19) is provided at the left end of the second layered plate (18) and at the right end of the second layered plate (18), and the second shock-absorbing buffer arc (19) is in a concave shape.

6. The shock absorbing structure of the feedstock oil buffer tank for the hydrocracking unit according to claim 3 is characterized in that: A third shock-absorbing buffer arc (21) is arranged at the middle of the top of the third layered plate (20), and the third shock-absorbing buffer arc (21) is in the shape of an outward convex body.

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